CN118317587A - Radio frequency device, assembling method thereof and radio frequency strong electromagnetic pulse protection piece - Google Patents

Abstract

The application relates to a radio frequency device, an assembling method thereof and a radio frequency strong electromagnetic pulse protection piece. The hollow inner shell of the radio frequency device is arranged in the hollow cavity of the hollow outer shell, the inner shell body can be equivalent to a stub, the first plane conductive element can be equivalent to a first equivalent inductance connected between the stub and the first radio frequency conductor, and the surface area of the first plane conductive element and the first outer end cover, which are opposite to each other, is equivalent to a first equivalent capacitance. Similarly, the second planar conductive member may be equivalently a second equivalent inductance connected between the stub and the second radio frequency conductor, the surface area of the second planar conductive member and the second outer end cap opposite each other being equivalently a second equivalent capacitance connected between the second equivalent inductance and ground, the first capacitive conductive member and the second capacitive conductive member constituting a third equivalent capacitance connected in series between the first radio frequency conductor and the second radio frequency conductor. The protective device is electrically connected between the inner shell body and the outer shell body, the impedance of the radio frequency device is not influenced no matter the impedance of the protective device, and the radio frequency performance of the radio frequency strong electromagnetic pulse protective device is not influenced. The structural members are symmetrical about the virtual symmetry plane, so that the radio frequency device has larger bandwidth, and the radio frequency device is suitable for more application scenes.

Description

A radio frequency device and its assembly method, and a radio frequency strong electromagnetic pulse protection component

Technical Field

The present application relates to the field of radio frequency technology, and in particular to a radio frequency device and an assembly method thereof, and a radio frequency strong electromagnetic pulse protection component.

Background technique

With the development of technology, various wireless equipment and facilities have been widely used in engineering application fields such as industrial and agricultural production, scientific research, outer space exploration, national defense construction, and national security defense. Compared with laboratories, wireless equipment and facilities in engineering applications face more complex electromagnetic environments. Since the antennas and coaxial feeders of wireless devices are exposed outside the equipment, they are extremely susceptible to various transient electromagnetic pulses. Transient electromagnetic pulses will enter the wireless device along the antennas and coaxial feeders, causing damage to key sensitive equipment in the transceiver system, resulting in the wireless device not being able to work properly.

In this regard, although the relevant technology also provides some protection structures for wireless devices, such as protection structures against lightning electromagnetic pulses, these protection structures themselves are easily damaged in harsh and complex electromagnetic environments. Once the protection structures are damaged, the transmission and communication performance of the wireless devices they protect will also be degraded and damaged; and these protection structures are basically only suitable for narrowband scenarios, so the application scenarios are limited.

Summary of the invention

In order to solve the problem in the related art that the electromagnetic pulse protection structure is easily damaged, affecting the transmission and communication performance of wireless devices, as well as the problem of limited application scenarios of the electromagnetic pulse protection structure, the present application provides a radio frequency device and an assembly method thereof, and a radio frequency strong electromagnetic pulse protection component.

In a first aspect, the present application provides a radio frequency device, the radio frequency device comprising:

A conductive hollow shell, the hollow shell having a cylindrical shell body and a first outer end cover and a second outer end cover respectively located at two open ends of the shell body;

A conductive hollow inner shell is arranged inside the hollow outer shell and has no contact with the hollow outer shell, the hollow inner shell has a cylindrical inner shell body and a first planar conductive member and a second planar conductive member arranged inside the inner shell body, the first planar conductive member and the second planar conductive member are both in electrical contact with the inner shell body; the first planar conductive member and the first outer end cover are at least partially opposite to each other, and the opposite areas of the two are parallel; the second planar conductive member and the second outer end cover are at least partially opposite to each other, and the opposite areas of the two are parallel;

a first capacitive conductive component and a second capacitive conductive component disposed inside the hollow inner shell, wherein the first capacitive conductive component and the second capacitive conductive component are electrically isolated from each other, parallel to each other and at least partially opposite to each other; and

a first RF conductor penetrating the first outer end cover and the first planar conductive element, the first RF conductor being electrically connected to the inner edge of the first planar conductive element; the first RF conductor having a first pair of outer ends exposed to the hollow housing and a first pair of inner ends electrically connected to the first capacitive conductive element;

a second RF conductor penetrating the second outer end cover and the second planar conductive element, the second RF conductor being electrically connected to the inner edge of the second planar conductive element; the second RF conductor having a second pair of outer ends exposed from the hollow housing and a second pair of inner ends electrically connected to the second capacitive conductive element;

Among them, there is a virtual symmetry plane between the first capacitive conductive component and the second capacitive conductive component, and the first capacitive conductive component and the second capacitive conductive component, the first planar conductive component and the second planar conductive component, and the first outer end cover and the second outer end cover are all symmetrical about the virtual symmetry plane; there is a setting space for a protective device between the inner shell body and the outer shell body, and the protective device is electrically connected to the inner shell body and the outer shell body at the same time to absorb and suppress strong electromagnetic pulses on any one of the first RF conductor and the second RF conductor.

By adopting the above technical solution, the conductive inner shell body in the radio frequency device can be equivalent to a short stub, the first planar conductive member can be equivalent to a first equivalent inductor connected between the short stub and the first radio frequency conductor, the first planar conductive member and the first outer end cover are at least partially opposite to each other, and the opposite areas are parallel to each other, therefore, the surface area where the first planar conductive member and the first outer end cover are opposite to each other is equivalent to a first equivalent capacitor, and the first equivalent capacitor is connected between the first equivalent inductor and the outer shell body, because the outer shell body and the ground are at the same potential, so the first equivalent capacitor is connected between the first equivalent inductor and the ground; similarly, the second planar conductive member can be equivalent to a second equivalent inductor connected between the short stub and the second radio frequency conductor, and the surface area where the second planar conductive member and the second outer end cover are opposite to each other is equivalent to a second equivalent capacitor connected between the second equivalent inductor and the ground, and the first capacitive conductive member and the second capacitive conductive member, which are parallel to each other, at least partially opposite to each other and electrically isolated from each other, constitute a third equivalent capacitor connected in series between the first radio frequency conductor and the second radio frequency conductor. In addition, there is a protective device setting space between the outer shell body and the inner shell body of the radio frequency device, which can be used to set a protective device electrically connected between the inner shell body and the outer shell body, so the protective device is connected between the short stub and the ground. Based on the equivalent circuit of the radio frequency device, it can be known that in the radio frequency device, no matter how large the impedance of the protective device is, it does not affect the impedance of the radio frequency device itself. In other words, the radio frequency strong electromagnetic pulse protective device formed based on the radio frequency device always maintains a constant impedance. Even if the impedance changes after the protective device is damaged, it will not affect the transmission performance of the radio frequency strong electromagnetic pulse protective device. In addition, in the radio frequency device, the first capacitive conductive component and the second capacitive conductive component, the first planar conductive component and the second planar conductive component, the first outer end cover and the second outer end cover are symmetrical about the virtual symmetry plane, which makes the stray distribution parameters (including stray distributed capacitance and stray distributed inductance) on both sides of the virtual symmetry plane can offset each other, so that the radio frequency device has a larger bandwidth, and can even achieve ultra-wideband, so that the radio frequency device is suitable for more transmission and communication scenarios.

Optionally, both the first planar conductive member and the second planar conductive member are planar metal plates, and the planar metal plates are axisymmetric flat plate structures.

By adopting the above technical solution, the first planar conductive member and the second planar conductive member are both planar metal plates, and the planar metal plates are axially symmetrical structures. In this way, the distribution parameters of the first planar conductive member itself and the second planar conductive member itself are smaller, which is more conducive to achieving ultra-wideband of RF devices.

Optionally, the hollow inner shell further comprises a first inner end cover and a second inner end cover respectively located at two open ends of the inner shell body, the first inner end cover and the second inner end cover are both conductive, and the first inner end cover and the second inner end cover are symmetrical about the virtual symmetry plane;

The first inner end cap is located between the first planar conductive member and the first outer end cap, and the first RF conductor passes through the first inner end cap; the outer edge of the first inner end cap is electrically in contact with the inner shell body and the first planar conductive member at the same time, and the inner edge is electrically isolated from the first RF conductor;

The second inner end cover is located between the second planar conductive member and the second outer end cover, and the second RF conductor passes through the second inner end cover; the outer edge of the second inner end cover is electrically in contact with the inner shell body and the second planar conductive member at the same time, and the inner edge is electrically isolated from the second RF conductor.

By adopting the above technical solution, in the radio frequency device, the first equivalent capacitor can be formed by the first inner end cover and the first outer end cover, and the second equivalent capacitor can be formed by the second inner end cover and the second outer end cover. Compared with the solution of using the first planar conductive member to form the first equivalent inductor and using the first conductive planar member and the first outer end cover to form the first equivalent capacitor, the performance of the radio frequency device is better.

Optionally, the radio frequency device further includes:

a first insulating layer disposed between the first outer end cover and the first inner end cover;

a second insulating layer disposed between the second outer end cover and the second inner end cover;

The first insulating layer and the second insulating layer are both non-metallic physical layers, and the first insulating layer and the second insulating layer are symmetrical about the virtual symmetry plane.

By adopting the above technical solution, a physical first insulating layer is arranged between the first outer end cover and the first inner end cover, and a second insulating layer is arranged between the second outer end cover and the second inner end cover. Since the first insulating layer and the second insulating layer are symmetrical about the aforementioned virtual symmetry plane, the arrangement of the first insulating layer and the second insulating layer will not destroy the mutual cancellation of the stray distribution parameters on both sides of the virtual symmetry plane, and will not reduce the applicable bandwidth of the RF device. In addition, the first insulating layer and the second insulating layer are physical layers. When the RF device is subjected to external force, electrical contact between the first inner end cover and the first outer end cover, or between the second inner end cover and the second outer end cover can be prevented, thereby maintaining the original electrical structure of the RF device, which is beneficial to enhancing the reliability of the RF device. At the same time, in some cases, the first insulating layer and the second insulating layer (for example, the first insulating layer and the second insulating layer are both insulating rubber layers) can also play a role in fixing the hollow inner shell in the hollow outer shell.

Optionally, the radio frequency device further includes:

A third insulating layer is provided between the first capacitive conductive component and the second capacitive conductive component, the third insulating layer is symmetrical about the virtual symmetry plane, and the third insulating layer is a non-metallic solid layer; the first capacitive conductive component and the second capacitive conductive component are fixed into one body through the third insulating layer.

By adopting the above technical solution, a solid non-metallic dielectric layer is set between the two electrode plates of the third equivalent capacitor. The third insulating layer, as a solid layer, can prevent the first capacitive conductive component from contacting the second capacitive conductive component, maintain the electrical structure of the RF device, and enhance the reliability of the RF device.

Optionally, the outer shell body is provided with a through mounting hole, and the mounting hole is configured to allow a protective device to pass from the outer shell body to between the outer shell body and the inner shell body so as to simultaneously achieve electrical connection with the outer shell body and the inner shell body, and the protective device is configured to absorb and suppress strong electromagnetic pulses on either the first RF conductor or the second RF conductor.

By adopting the above technical solution, a through mounting hole is provided on the shell body, through which the protective device can be directly installed from the outside of the RF device after the RF device is produced and assembled, thereby obtaining a RF strong electromagnetic pulse protective device. Compared with the solution of installing the protective device from the open end of the shell body, the production cost can be reduced and the production efficiency can be improved.

Optionally, the shell body further has a first fixing structure, and the first fixing structure is configured to be detachably fixedly matched with the second fixing structure of the protective device to fix the protective device on the shell body.

By adopting the above technical solution, the shell body also has a first fixing structure, and the first fixing structure can be detachably fixed with the second fixing structure of the protective device, so the protective device can be easily installed in the radio frequency device from the outside to form a radio frequency strong electromagnetic pulse protective device, and can also be easily removed from the radio frequency strong electromagnetic pulse protective device. In the application of radio frequency devices, engineers can flexibly select corresponding protective devices and install them on radio frequency devices according to the application scenarios of radio frequency devices and the types of strong electromagnetic pulses that need to be protected, so as to obtain corresponding types of radio frequency strong electromagnetic pulse protective devices, which makes the application of radio frequency devices more flexible and applicable to a wider range of application scenarios. Moreover, when the protective device in the radio frequency strong electromagnetic pulse protective device is damaged, it is not necessary to replace the protective device as a whole. It is only necessary to remove the damaged protective device and install a new protective device, which significantly reduces the use cost of the radio frequency strong electromagnetic pulse protective device.

In a second aspect, the present application provides a radio frequency strong electromagnetic pulse protection device, which includes a protection device and the radio frequency device described in any one of the above items, wherein the protection device is arranged between the outer shell body and the inner shell body, and one end thereof is electrically connected to the outer shell body, and the other end is electrically connected to the inner shell body, and the protection device is configured to absorb and suppress strong electromagnetic pulses on any one of the first radio frequency conductor and the second radio frequency conductor.

By adopting the above technical solution, the electrical structure of the RF device in the RF strong electromagnetic pulse protection device determines that the impedance of the RF strong electromagnetic pulse protection device is not affected by the impedance of the protection device. Therefore, no matter what the state of the protection device is, the impedance of the RF strong electromagnetic pulse protection device can maintain a constant impedance. Damage to the protection device will not affect the transmission performance of the RF strong electromagnetic pulse protection device, thereby enhancing the stability and reliability of the transmission and communication performance of the RF strong electromagnetic pulse protection device. In addition, thanks to the symmetrical arrangement of the first capacitive conductive component and the second capacitive conductive component, the first planar conductive component and the second planar conductive component, and the first outer end cover and the second outer end cover in the RF device about the virtual symmetry plane, the stray distribution parameters in the RF device can offset each other, which increases the bandwidth of the RF device and allows the RF device to have ultra-wideband. The RF strong electromagnetic pulse protection device formed based on the RF device can also be applied to more transmission and communication scenarios.

Optionally, the protective device is a short-circuit characteristic device, and the protective device short-circuits the inner shell body and the outer shell body into an equipotential body.

By adopting the above technical scheme, a device with short-circuit characteristics is used as a protective device in the RF strong electromagnetic pulse protective device. Therefore, the protective device only needs to realize the short circuit of the outer shell body and the inner shell body. The protective device has a simple structure and low cost. Moreover, compared with the RF strong electromagnetic pulse protective device formed based on other types of protective devices, the RF strong electromagnetic pulse protective device provided in this scheme has higher reliability.

In a third aspect, the present application provides a radio frequency device assembly method, which is applied to the assembly of the radio frequency device described in any one of the above items, and the radio frequency device assembly method includes:

An outer shell assembly and an inner shell assembly are provided, wherein the outer shell assembly comprises the outer shell body and the first outer end cover covering an open end of the outer shell body, and the inner shell assembly comprises the inner shell body and the first planar conductive member disposed in the inner shell body;

Insert the inner shell assembly into the open end of the outer shell assembly;

The first capacitive conductive component is disposed at the first pair of inner ends of the first RF conductor to form a first intermediate assembly, and the second capacitive conductive component is disposed at the second pair of inner ends of the second RF conductor to form a second intermediate assembly;

Assemble the intermediate structure including the first intermediate assembly and the second intermediate assembly from the open end of the inner shell assembly, so that the first pair of outer ends of the first RF conductor pass through the through hole on the first planar conductive member and the through hole on the first outer end cover in sequence;

Insert the second planar conductive member into the inner shell body from the open end of the outer shell assembly, so that the second outer end of the second RF conductor passes through the through hole on the second planar conductive member;

The second outer end cover is disposed at the open end of the housing assembly, so that the second pair of outer ends of the second RF conductor passes through the through hole on the second outer end cover.

By adopting the above technical solution, a radio frequency device with an impedance that is not affected by the impedance of the protective device can be assembled, that is, no matter how large the impedance of the protective device is, it will not affect the impedance of the radio frequency device itself, thereby improving the stability and reliability of the transmission and communication performance of the radio frequency device. In addition, in the radio frequency device, the first capacitive conductive component and the second capacitive conductive component, the first planar conductive component and the second planar conductive component, and the first outer end cover and the second outer end cover are all symmetrical about the virtual symmetry plane, which allows the stray distributed parameters (including stray distributed capacitance and stray distributed inductance) on both sides of the virtual symmetry plane to offset each other, thereby making the radio frequency device have a larger bandwidth, and even achieve ultra-wideband, making the radio frequency device suitable for more transmission and communication scenarios.

In summary, this application at least includes the following beneficial technical effects:

1. The state of the protection device will not affect the impedance of the RF strong electromagnetic pulse protection device. The RF strong electromagnetic pulse protection device can maintain constant impedance, and its transmission performance will not be degraded due to damage to the protection device. Therefore, the transmission performance of the RF strong electromagnetic pulse protection device is stable and reliable.

2. Radio frequency strong electromagnetic pulse protection devices have a high bandwidth and can even achieve ultra-wideband, and have a wide range of application scenarios.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a structure of a radio frequency device provided in an optional embodiment of the present application;

FIG2 is a schematic diagram of a structure of a radio frequency strong electromagnetic pulse protection element provided in an optional embodiment of the present application;

FIG3 is a schematic diagram of an equivalent circuit of a radio frequency device provided in an optional embodiment of the present application;

FIG4 is a schematic diagram of an equivalent circuit of a radio frequency strong electromagnetic pulse protection element provided in an optional embodiment of the present application;

FIG5a is a schematic diagram of a shape of a first planar conductive member provided in an optional embodiment of the present application;

FIG5 b is a schematic diagram of another shape of the first planar conductive member provided in an optional embodiment of the present application;

FIG6 is a schematic diagram of a first structure of a radio frequency device provided in another optional embodiment of the present application;

FIG7 is a schematic diagram of a second structure of a radio frequency device provided in another optional embodiment of the present application;

FIG8 is a schematic structural diagram of a radio frequency device provided in yet another optional embodiment of the present application;

FIG9 is a schematic structural diagram of a radio frequency strong electromagnetic pulse protection element shown in another optional embodiment of the present application;

FIG. 10 is a flow chart of a method for assembling a radio frequency device provided in yet another optional embodiment of the present application.

Description of reference numerals:

10-hollow shell; 11-shell body; 110-mounting hole; 12-first outer end cover; 13-second outer end cover; 20-hollow inner shell; 21-inner shell body; 22-first planar conductive part; 23-second planar conductive part; 24-first inner end cover; 25-second inner end cover; 31-first capacitive conductive part; 32-second capacitive conductive part; 41-first RF conductor; 42-second RF conductor; 51-first insulating layer; 52-second insulating layer; 53-third insulating layer; 60-setting space; 100-RF device; 200-protective device; 210-installation cap; 300-strong electromagnetic pulse protective part.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to be used as limitations to the present application. As used in the specification and the appended claims of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include plural expressions, unless there is a clear contrary indication in its context. It should also be understood that the term "and/or" used in the present application refers to and includes any or all possible combinations of one or more listed items. The term "exemplary" means "used as an example, embodiment or illustrative", and any embodiment described as "exemplary" here does not need to be interpreted as being superior to or better than other embodiments. The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as implying or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" can expressly or implicitly include one or more of these features, and in the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

An optional embodiment of the present application:

In order to solve the problem of lack of electromagnetic pulse protection structure with reliable transmission performance and limited application scenarios of electromagnetic pulse protection structure in related technologies, this embodiment first provides a radio frequency device in a strong electromagnetic pulse protection component, please refer to the structural schematic diagram of the radio frequency device 100 shown in FIG1:

The RF device 100 includes a hollow outer shell 10, a hollow inner shell 20, a first capacitive conductive component 31, a second capacitive conductive component 32, a first RF conductor 41, and a second RF conductor 42. In addition to the first capacitive conductive component 31, the second capacitive conductive component 32, the first RF conductor 41, and the second RF conductor 42 being conductive, the hollow outer shell 10 and the hollow inner shell 20 are also made of conductive materials.

The hollow shell 10 has a cylindrical shell body 11, and its cross section (the interface perpendicular to the axis of the shell body 11) can be circular, elliptical, or triangular, rectangular, parallelogram or other polygonal. Generally, compared with other forms, the cylindrical shell body 11 is easier to manufacture. In addition, the hollow shell 10 also has a first outer end cover 12 and a second outer end cover 13, which are respectively arranged at the two open ends of the shell body 11. The first outer end cover 12, the second outer end cover 13 and the shell body 11 are enclosed to construct a hollow cavity of the hollow shell 10. The first outer end cover 12 and the second outer end cover 13 are both provided with through holes that can connect the inside and outside of the hollow shell 10. In some examples of the present embodiment, the shell body 11, the first outer end cover 12, and the second outer end cover 13 are independent components that are assembled together. In some other examples, the shell body 11 can be integrally formed with one of the two outer end covers (i.e., the first outer end cover 12 and the second outer end cover 13). The hollow shell 10 is at the same potential as the ground. For example, the shell body 11 is provided with a grounding screw hole, and the grounding wire can be electrically and fixedly connected to the shell body 11 through the grounding screw hole.

The hollow inner shell 20 is disposed in the hollow cavity of the hollow outer shell 10, and there is no electrical contact between the hollow inner shell 20 and the hollow outer shell 10. The structure of the hollow inner shell 20 is similar to that of the hollow outer shell 10, and it has a cylindrical inner shell body 21, and the inner shell body 21 can be equivalent to a short stub (i.e., conductor) STUB, and the cross-section of the inner shell body 21 can also be selected from but not limited to a circle, an ellipse, a triangle, a rectangle, and a parallelogram. In the present embodiment, the axis of the inner shell body 21 is parallel to the axis of the outer shell body 11. In some examples, the axis of the inner shell body 21 coincides with the axis of the outer shell body 11. The hollow inner shell 20 also has a first planar conductive member 22 and a second planar conductive member 23 disposed inside the inner shell body 21. In some examples of this embodiment, the first plane conductive member 22 and the second plane conductive member 23 are respectively arranged at the two open ends of the inner shell body 21, and can be used as end covers of the hollow inner shell 20. In this case, one of the first plane conductive member 22 and the second plane conductive member 23 can be integrally formed with the inner shell body 21. In some other examples, although the first plane conductive member 22 and the second plane conductive member 23 are also arranged in the inner shell body 21, they are not located at the ends of the inner shell body 21. The first plane conductive member 22 and the second plane conductive member 23 are also provided with through holes.

The first planar conductive member 22 and the first outer end cover 12 are at least partially opposite to each other, and the areas where they are opposite to each other are parallel. At the same time, because there is no electrical contact between the hollow inner shell 20 and the hollow outer shell 10, the areas where the first planar conductive member 22 and the first outer end cover 12 are opposite to each other can form a capacitor, which is recorded as a first equivalent capacitor C1 in this embodiment. Similarly, a second equivalent capacitor C2 will be formed between the second planar conductive member 23 and the second outer end cover 22.

The first capacitive conductive component 31 and the second capacitive conductive component 32 are disposed inside the hollow inner shell 20 and are not in electrical contact with the hollow inner shell 20. Since the first capacitive conductive component 31 and the second capacitive conductive component 32 are electrically isolated from each other, the two are parallel to each other and at least partially opposite to each other, a third equivalent capacitor C3 can be formed between the first capacitive conductive component 31 and the second capacitive conductive component 32.

The first RF conductor 41 and the second RF conductor 42 are both used for transmitting RF signals. The first RF conductor 41 has a first pair of outer ends and a first pair of inner ends, the first pair of outer ends are exposed to the hollow housing 10, and are used to receive external RF signals or output RF signals to the outside, and the first pair of inner ends are electrically connected to the first capacitive conductive member 31. The second RF conductor 42 has a second pair of inner ends and a second pair of outer ends, the second pair of inner ends are electrically connected to the second capacitive conductive member 32, and the second outer end is exposed to the hollow housing 10, and is used to output RF signals to the outside or receive external RF signals. The first RF conductor 41 passes through the through holes on the first outer end cover 12 and the first planar conductive member 22, and the second RF conductor 42 passes through the through holes on the second outer end cover 13 and the second planar conductive member 23. In some examples, at least one of the first RF conductor 41 and the second RF conductor 42 can be a coaxial feeder. In this embodiment, the first RF conductor 41 and the second RF conductor 42 are both coaxial feeders, for example, both are 50 ohm coaxial lines.

In this embodiment, the first RF conductor 41 is in electrical contact with the inner edge of the first planar conductive member 22. In addition to being equivalent to an electrode plate of the first equivalent capacitor C1, the first planar conductive member 22 also forms a first equivalent inductor L1. Similarly, the second RF conductor 42 is in electrical contact with the inner edge of the second planar conductive member 23. The second planar conductive member 23 forms a second equivalent inductor L2.

There is a setting space 60 for the protection device 200 between the inner shell body 21 and the outer shell body 11. The protection device 200 refers to a device that can absorb and suppress strong electromagnetic pulses. For example, please refer to the structural schematic diagram of the strong electromagnetic pulse protection member 300 including the protection device 200 and the aforementioned radio frequency device 100 shown in FIG. 2. The protection device 200 is deployed in the corresponding setting space 60 and is electrically connected to the outer shell body 11 and the inner shell body 21 at the same time. It can absorb and suppress strong electromagnetic pulses on any one of the first radio frequency conductor 41 and the second radio frequency conductor 42.

In some examples of this embodiment, the protection device 200 may be a short-circuit characteristic device, for example, the protection device is a conductor with good conductivity, which is electrically connected between the inner shell body 21 and the outer shell body 11 to achieve a short circuit between the inner shell body 21 and the outer shell body 11. In some other examples of this embodiment, the protection device may also be an open-circuit characteristic device, for example, it may include at least one of a gas discharge tube and a semiconductor diode. For example, in one example, the protection device includes a transient voltage suppressor diode (TVS), in another example, the protection device includes a diode stack formed by stacking or connecting multiple semiconductor diodes, and in another example, the protection device 200 is a PIN diode.

FIG3 shows a schematic diagram of an equivalent circuit of the RF device 10, wherein the first RF conductor 41 and the second RF conductor 42 are indicated by thick solid lines. It can be seen from FIG3 that the third equivalent capacitor C3 is connected between the first RF conductor 41 and the second RF conductor 42. The first equivalent inductor L1 formed by the first planar conductive member 22 is connected between the first RF conductor 41 and the short stub STUB, and the second equivalent inductor L2 formed by the second planar conductive member 23 is connected between the second RF conductor 42 and the short stub STUB. The first equivalent capacitor C1 formed by the first outer end cap 12 and the first planar conductive member 22 is connected between the first equivalent inductor L1 and the ground, and the second equivalent capacitor C2 formed by the second outer end cap 13 and the second planar conductive member 23 is connected between the second equivalent inductor L2 and the ground.

FIG4 shows an equivalent circuit diagram of a strong electromagnetic pulse protection device 300 based on FIG3 , where one end of the protection device 200 is connected to the stub STUB and the other end is grounded. In conjunction with FIG4 , it can be seen that the system impedance Z of the strong electromagnetic pulse protection device 300 is:

It can be seen that no matter what the impedance of the protection device 200 is, it will not affect the system impedance of the strong electromagnetic pulse protection component 300, that is, it will not affect the total impedance between the first external end and the second external end. Therefore, no matter whether the protection device 200 is in normal state or the protection device 200 is damaged and the impedance changes, the impedance between the first external end and the second external end is constant, and the basic RF transmission function of the RF device 100 is not affected. Therefore, the RF device provided in this embodiment has stable transmission performance and high reliability.

In this embodiment, there is a virtual symmetry plane between the first capacitive conductive component 31 and the second capacitive conductive component 32. It can be understood that the first capacitive conductive component 31, the first plane conductive component 22 and the first outer end cover 12 are all located on one side of the virtual symmetry plane, while the second capacitive conductive component 32, the second plane conductive component 23 and the second outer end cover 13 are all located on the other side of the virtual symmetry plane. At the same time, the first capacitive conductive component 31 and the second capacitive conductive component 32, the first plane conductive component 22 and the second plane conductive component 23, the first outer end cover 12 and the second outer end cover 13 are all symmetrical about the virtual symmetry plane, that is, the first capacitive conductive component 31 and the second capacitive conductive component 32 are symmetrical about the virtual symmetry plane, the first plane conductive component 22 and the second plane conductive component 23 are symmetrical about the virtual symmetry plane, and the first outer end cover 12 and the second outer end cover 13 are also symmetrical about the virtual symmetry plane.

It should be noted that, in this embodiment, if a pair of structural members are arranged symmetrically about the virtual symmetry plane, not only the arrangement positions of the two structural members are symmetrical about the virtual symmetry plane, but the two structural members themselves are also symmetrical about the virtual symmetry plane. By such an arrangement, it can be ensured that the stray distribution parameters (including stray distributed capacitance and stray distributed inductance) of the two structural members can offset each other, thereby increasing the frequency band range of the RF device 100, so that the RF device 100 and the strong electromagnetic pulse protection member 300 formed based on the RF device 100 have a larger bandwidth and are suitable for more transmission scenarios.

In some examples, the overall structure of the RF device 100 is also symmetrical about the above-mentioned virtual symmetry plane, so that the stray distributed capacitance and stray distributed inductance can be better offset. In some other examples, the first planar conductive member 22 and the second planar conductive member 22 themselves are also axisymmetric planar metal plates. For example, the first planar conductive member 22 (the second planar conductive member 23 has the same structure as the first planar conductive member 22) can be annular, as shown in Figure 5a. In some other examples, the first planar conductive member 22 is provided with a plurality of hollow sectors, as shown in Figure 5b. It is undoubted that in some other examples of this embodiment, the first planar conductive member 22 and the second planar conductive member 23 can also have other shapes.

Another optional embodiment of the present application:

Please refer to FIG6 . This embodiment provides a schematic structural diagram of another RF device 100. In this RF device 100, the hollow inner shell 20 further includes a conductive first inner end cap 24 and a conductive second inner end cap 25. The first inner end cap 24 and the second inner end cap 25 are respectively arranged at the two open ends of the inner shell body 21. In this example, the first planar conductive member 22 is located between the first inner end cap 24 and the first capacitive conductive member 31, and the second planar conductive member 23 is located between the second inner end cap 25 and the second capacitive conductive member 32. The first inner end cap 24 is provided with a through hole for the first RF conductor 41 to pass through. However, the inner edge of the first RF conductor 41 does not make electrical contact with the first inner end cap 24, and its outer edge is in electrical contact with both the inner shell body 21 and the first planar conductive member 22. Similarly, the second inner end cover 25 is also provided with a through hole for the second RF conductor 42 to pass through, and the inner edge of the second inner end cover 25 is not in electrical contact with the second RF conductor 42, but the outer edge is in electrical contact with the inner shell body 21 and the first planar conductive member 22 at the same time. In this RF device 100, the first equivalent capacitor C1 can be formed by the first inner end cover 24 and the first outer end cover 12, the first planar conductive member 22 mainly forms the first equivalent inductance L1, the second equivalent capacitor C2 can be formed by the second inner end cover 25 and the second outer end cover 13, and the second planar conductive member 23 mainly forms the second equivalent inductance L2. Compared with the RF device 100 in which the first equivalent capacitor C1 is directly formed by the first planar conductive member 22 and the first outer end cover 12, and the second equivalent capacitor C2 is formed by the second planar conductive member 23 and the second outer end cover 13, the RF device 100 provided in FIG. 6 has better electrical performance and transmission performance.

In addition, for the purpose of offsetting stray distribution parameters, the first inner end cover 24 and the second inner end cover 25 in this embodiment are also symmetrical about the aforementioned virtual symmetry plane.

In some examples of this embodiment, one of the first inner end cover 24 and the second inner end cover 25 is integrally formed with the inner shell body 21 by a method not limited to stamping, which can make the inner shell body 21 have better sealing performance and facilitate the assembly and production of the RF device 100.

In some examples of the present embodiment, the hollow outer shell 10, the hollow inner shell 20 (including the inner shell body 21, the first inner end cover 24, the second inner end cover 25, the first planar conductive component 22 and the second planar conductive component 23), the first capacitive conductive component 31 and the second capacitive conductive component 32 are all made of metal materials, for example, copper with good conductivity and strength.

It is understandable that there must be an insulating medium between the two structural members used to form a capacitor. In some examples, air can be directly used as the insulating medium between the capacitor plates. In other examples, a physical dielectric layer is provided between the two structural members. For example, in some examples, see FIG7 , a first insulating layer 51 is provided between the first outer end cap 12 and the first inner end cap 24, and a second insulating layer 52 is provided between the second outer end cap 13 and the first inner end cap 24, and the first insulating layer 51 and the second insulating layer 52 are symmetrically arranged about the aforementioned virtual symmetry plane. In some examples, the thickness of the first insulating layer 51 (corresponding to the case of the second insulating layer 52) is less than the gap between the first outer end cap 12 and the first inner end cap 24. In other examples, the two sides of the first insulating layer 51 are respectively attached to the first outer end cap 12 and the first inner end cap 24. For example, the first insulating layer 51 and the second insulating layer 52 may be insulating adhesive layers, and the two sides thereof are respectively adhered to the first outer end cover 12 and the first inner end cover 24, so that the hollow inner shell 20 can be fixed in the hollow outer shell 10 through the first insulating layer 51 and the second insulating layer 52. Of course, it can be understood by those skilled in the art that, in some other examples of the present embodiment, the insulating entity medium is not only disposed between the inner end cover and the outer end cover, but also filled into other gap areas between the hollow outer shell 10 and the hollow inner shell 20, but will not occupy the setting space 60 of the protective device 200.

In some examples of the present embodiment, an insulating non-metallic physical layer is also provided between the first capacitive conductive component 31 and the second capacitive conductive component 32. For example, please refer to FIG. 7 , the third insulating layer 53 between the first capacitive conductive component 31 and the second capacitive conductive component 32 occupies the entire gap between the two. In some examples, the first capacitive conductive component 31 and the second capacitive conductive component 32 are also fixed as a whole by the third insulating layer 53. For example, the third insulating layer 53 may be, but is not limited to, a resin glue layer, one side of which is adhered to the first capacitive conductive component 31, and the other side of which is adhered to the second capacitive conductive component 32. In some other examples, the third insulating layer 53 can also fix the first capacitive conductive component 31 and the second capacitive conductive component 32 in other ways, for example, the third insulating layer 53 and both surfaces of the first capacitive conductive component 31 and the second capacitive conductive component 32 are provided with first connectors, and the first capacitive conductive component 31 and the second capacitive conductive component 32 are provided with second connectors that match the first connectors, and the first capacitive conductive component 31, the second capacitive conductive component 32 and the third insulating layer 53 can also be fixed together through the cooperation of the first connector and the second connector. The cooperation between the first connector and the second connector can be screwed or snapped.

There is no doubt that although a physical first insulating layer 51, a physical second insulating layer 52 and a physical third insulating layer 53 are provided simultaneously in FIG7, in some other examples, a non-metallic physical layer may be provided only in the first equivalent capacitor C1 and the second equivalent capacitor C2, or a non-metallic physical layer may be provided only in the third equivalent capacitor C3.

In some examples, in order to further improve the bandwidth of the RF device 100 and the strong electromagnetic pulse protection device 300 formed based on the RF device 100, when producing the RF device 100, the bandwidth can be adjusted by controlling the size of the first equivalent capacitor C1, the second equivalent capacitor C2, the first equivalent inductor L1, and the second equivalent inductor L2. Specifically, reducing the first equivalent capacitor C1 and the second equivalent capacitor C2, and increasing the first equivalent inductor L1 and the second equivalent inductor L2 can increase the bandwidth of the RF device 100, and the size of the third equivalent capacitor C3 can be used to adjust the center frequency. For capacitance, the size of the equivalent capacitance can be adjusted by controlling the distance between the two electrode plates, the relative area, and the medium between the two; for inductance, the size of the equivalent inductance can be adjusted by the length and thickness of the inductor.

Another optional embodiment of the present application:

In some examples of this embodiment, when a strong electromagnetic pulse protection element 300 is generated, one open end of the outer shell body 11 needs to be in an unsealed state, so that the protection element 200 can be set between the hollow outer shell 10 and the hollow inner shell 20 through the open end of the outer shell body 11. This assembly method is difficult and not conducive to production. Based on this, this embodiment also provides a radio frequency device 100, see Figure 8:

In the radio frequency device 100, a mounting hole 110 is provided on the shell body 11, and the protective device 200 can enter the inner side of the hollow shell 10 from the outer side of the hollow shell 10 through the mounting hole 110 to achieve installation. In some examples of the present embodiment, the connection and fixation of the protective device 200 with the hollow shell 10 and the hollow inner shell 20 can be achieved by welding. In other examples, the protective device 200 can be detachably matched with the radio frequency device 100. For example, in one example, a first fixing structure is provided near the mounting hole 110 of the shell body 11, and a second fixing structure matching the first fixing structure is provided on the protective device 200. When installing the protective device 200, one end of the protective device 200 can be extended into the mounting hole 110. At this time, the position of the second fixing structure on the protective device 200 matches the position of the first fixing structure near the mounting hole 110. The two can cooperate with each other to achieve the fixing of the protective device 200 on the radio frequency device 100. After the first fixing structure and the second fixing structure are matched, the end of the protective device 200 facing the hollow inner shell 20 will form an electrical contact with the inner shell body 21. In some examples, the first fixing structure and the second fixing structure can be snap-fitted, and in other examples, the two can be screw-fitted. For example, an internal thread is provided on the hole wall of the mounting hole 110, and an external thread that matches the internal thread is provided on the protective device 200.

It is understandable that in the solution where the protective device 200 cooperates with the radio frequency device 100 in a detachable manner, the assembly and production of the radio frequency device 100 and the assembly and production of the strong electromagnetic pulse protective device 300 can be independent of each other, and even the strong electromagnetic pulse protective device 300 can be formed at the engineering application site by engineering personnel temporarily selecting the corresponding type of protective device 200 according to the type of strong electromagnetic pulse to be protected and assembling it on the radio frequency device 100. For example, the protective device 200 is selected according to whether the strong electromagnetic pulse to be protected belongs to a fast edge (Fast Front) or a slow edge (Slow Front), or the protective device 200 is selected according to the electric field strength of the strong electromagnetic pulse. In addition, after the protective device 200 in the strong electromagnetic pulse protective device 300 is damaged and fails, it is not necessary to replace the strong electromagnetic pulse protective device 300 as a whole, but only to remove the damaged protective device 200 from the strong electromagnetic pulse protective device 300 and replace it with another protective device 200 with normal performance.

It should be noted that the strong electromagnetic pulse mentioned in this embodiment generally refers to a transient electromagnetic radiation environment with an electric field strength greater than 1kV/m, mainly including lightning electromagnetic pulses, nuclear electromagnetic pulses, static electromagnetic pulses and high-power microwaves, etc. The slow front strong electromagnetic pulse is a strong electromagnetic pulse of microseconds (us) (such as a lightning electromagnetic pulse), and the fast front strong electromagnetic pulse is a strong electromagnetic pulse of nanoseconds (ns) and less than nanoseconds.

In some examples of the present embodiment, in order to facilitate the disassembly and assembly of the protective device 200 from the outside of the strong electromagnetic pulse protection component 300, a mounting pipe cap 210 is provided on the side of the protective device 200 away from the hollow inner shell 20. After the protective device 200 is assembled on the radio frequency device 100, the mounting pipe cap 210 protrudes outward from the outer shell body 11, as shown in FIG. 9. Therefore, by applying force to the mounting pipe cap 210, the protective device 200 can be easily disassembled and assembled.

Another optional embodiment of the present application:

This embodiment provides a method for assembling a radio frequency device, which is used to assemble the radio frequency device 100 provided in any of the above examples. Please refer to the flowchart shown in FIG10 :

S1002: Provide an outer shell assembly and an inner shell assembly.

The outer shell assembly includes the outer shell body 11 and a first outer end cover 12 covering an open end of the outer shell body 11 . The inner shell assembly includes an inner shell body 21 and a first planar conductive member 22 disposed in the inner shell body 21 .

In some examples, the shell assembly is integrally formed, that is, the shell body 11 and the first outer end cover 12 are an inseparable whole. In other examples, the shell body 11 is not integrally formed with any outer end cover. In these examples, the shell assembly can be formed by assembling the shell body 11 and the first outer end cover 12.

The inner shell assembly can be an integral structure formed in one piece, or can be formed by combination. In some examples, the hollow inner shell 20 has a first inner end cover 24 and a second inner end cover 25. In this case, the combination structure of the inner shell body 21 and the first inner end cover 24 can be obtained first, and the combination structure can be an integral structure formed in one piece, or a combination structure obtained by assembly; and then the first planar conductive member 22 is set in the combination structure to obtain the inner shell assembly.

S1004: Insert the inner shell assembly from the open end of the outer shell assembly.

The inner shell assembly is installed from the open end of the outer shell assembly. When assembling the inner shell assembly, ensure that the axes of the inner shell body 21 and the outer shell body 11 are the same, and ensure that the direction of the open end of the inner shell assembly is the same as that of the outer shell assembly.

S1006: Disposing a first capacitive conductive component at a first pair of inner ends of the first RF conductor to form a first intermediate assembly, and disposing a second capacitive conductive component at a second pair of inner ends of the second RF conductor to form a second intermediate assembly.

The first capacitive conductive component 31 and the first RF conductor 41 are assembled together to achieve electrical connection between the first capacitive conductive component 31 and the first pair of inner ends of the first RF conductor 41. In this example, the combination of the first capacitive conductive component 31 and the first RF conductor 41 is called a first intermediate assembly.

On the other hand, the second capacitive conductive component 32 and the second RF conductor 42 are assembled together to achieve electrical connection between the second pair of inner ends of the second capacitive conductive component 32 and the second RF conductor 42. In this example, the combination of the second capacitive conductive component 32 and the second RF conductor 42 is called a second intermediate assembly.

S1008: Assemble the intermediate structural member including the first intermediate assembly and the second intermediate assembly from the open end of the inner shell assembly, so that the first pair of outer ends of the first RF conductor pass through the through hole on the first planar conductive member and the through hole on the first outer end cover in sequence.

After the first intermediate assembly and the second intermediate assembly are obtained, the intermediate structure including the first intermediate assembly and the second intermediate assembly is installed into the inner shell body 21 from the open end of the inner shell assembly.

It can be understood that in some examples, the first intermediate assembly and the second intermediate assembly can be first combined into an integral intermediate structure, and then the intermediate structure is installed in the inner shell body 21 as a whole. For example, a solid third insulating layer 53 is provided between the first capacitive conductive component 31 and the second capacitive conductive component 32, and the first capacitive conductive component 31 and the second capacitive conductive component 32 are fixedly connected through the third insulating layer 53. In this example, the first capacitive conductive component 31 and the second capacitive conductive component 32 can be first fixed together through the third insulating layer 53, and the first capacitive conductive component 31 and the first RF conductor 41, and the second capacitive conductive component 32 and the second RF conductor 42 are connected respectively to obtain the intermediate structure. Then, the intermediate structure is installed from the open end of the inner shell assembly, specifically, the first outer end of the first RF conductor 41 is aligned with the through hole on the first planar conductive component 22, and passes through the through hole on the first planar conductive component 22 and the through hole on the first outer end cover 12 in sequence.

In some other examples, the assembly of the intermediate structural parts is completed separately, for example, the first intermediate assembly is first installed, and when the first intermediate assembly is assembled, the first pair of outer ends is aligned with the through hole on the first planar conductive member 22, and then the first pair of outer ends passes through the through hole on the first planar conductive member 22 and the through hole on the first outer end cover 12 in sequence. When the second intermediate assembly is assembled, the second capacitive conductive member 32 in the second intermediate assembly is first inserted into the inner shell body 21. If a third insulating layer 53 is provided between the first capacitive conductive member 31 and the second capacitive conductive member 32, the third insulating layer 53 can be first provided to the first capacitive conductive member 31 or the second capacitive conductive member 32, and the third insulating layer 53 is installed along with the first intermediate assembly or the second intermediate assembly.

S1010: Insert the second planar conductive member into the inner shell body from the open end of the outer shell assembly, so that the second pair of outer ends of the second RF conductor pass through the through hole on the second planar conductive member.

After the intermediate structure is assembled, the second planar conductive member 23 is inserted into the inner shell body 21 from the open end of the outer shell assembly. When assembling the second planar conductive member 23, the second outer end of the second RF conductor 42 needs to be aligned with the through hole on the second planar conductive member 23 and pass through the through hole, and then the second planar conductive member 23 is fixed to the inner shell body 21.

S1012: Dispose a second outer end cover at the open end of the housing assembly, so that the second pair of outer ends of the second RF conductor pass through the through hole on the second outer end cover.

The through hole on the second outer end cover 13 is aligned with the second outer end of the second RF conductor 42, and the second outer end passes through the second outer end cover 13, and the second outer end cover 13 is fixed to the open end of the housing assembly.

It should be understood that if the hollow inner shell 20 has a first inner end cover 24 and a second inner end cover 25, then after the second planar conductive member 23 is installed and before the second outer end cover 13 is installed, the second inner end cover 25 needs to be installed from the open end of the outer shell assembly to the open end of the inner shell assembly.

It is understandable that, in addition to the corresponding electrical functions, the hollow outer shell 10 also takes into account the protection of the hollow inner shell 20 and other internal devices, so the hollow outer shell 10 needs to have good sealing performance. In some examples of the present embodiment, a waterproof sealing ring can be provided at the inner edge of the outer end cover and the RF conductor (including the first RF conductor 41 matched with the first outer end cover 12 and the second RF conductor 42 matched with the second outer end cover 13), and the waterproof sealing ring can be a rubber ring with good elasticity. For the outer end cover that is not integrally formed with the outer shell body 11, the outer edge thereof can also be provided with the above-mentioned waterproof sealing ring. Of course, in order to achieve the equipotential between the outer end cover and the outer shell body 11, the outer end cover and the outer shell body 11 must be electrically connected. Therefore, if there is no direct contact between the outer end cover and the outer shell body 11, but they are separated by a waterproof sealing ring, then the waterproof sealing ring provided on the outer edge of the outer end cover should be conductive. Typically, when a coaxial feed line is used as a radio frequency conductor, the coaxial feed line itself has an insulating outer layer on the outside, so in some examples the waterproof sealing rings on the inner and outer edges of the outer end cover are both waterproof conductive rubber rings.

Those skilled in the art will appreciate that waterproof sealing rings may also be provided on the inner end covers (first inner end cover 24, second inner end cover 25) and the inner edges of the hollow inner shell 20. For inner end covers that are not integrally formed with the inner shell body 21, the above-mentioned waterproof sealing rings may also be provided on their outer edges.

It should be noted that in some other examples of this embodiment, the RF device 100 may also be assembled according to other process sequences.

As described above, the above embodiments are only used to introduce the technical solution of the present application in detail, but the description of the above embodiments is only used to help understand the method and core idea of the present application and should not be understood as limiting the present application. Any changes or substitutions that can be easily thought of by technicians in this technical field within the technical scope disclosed in the present application should be included in the protection scope of the present application.

Claims (10)

1. A radio frequency device, the radio frequency device comprising:

The conductive hollow shell is provided with a cylindrical shell body, a first outer end cover and a second outer end cover which are respectively positioned at two opening ends of the shell body;

The conductive hollow inner shell is arranged inside the hollow outer shell and is in non-contact with the hollow outer shell, the hollow inner shell is provided with a cylindrical inner shell body, a first planar conductive piece and a second planar conductive piece, the first planar conductive piece and the second planar conductive piece are arranged inside the inner shell body, and the first planar conductive piece and the second planar conductive piece are electrically contacted with the inner shell body; the first plane conductive piece is opposite to at least part of the area of the first outer end cover, and the opposite areas are parallel; the second planar conductive member is opposite to at least part of the area of the second outer end cover, and the opposite areas are parallel;

the first capacitive conductive piece and the second capacitive conductive piece are arranged in the hollow inner shell, are electrically isolated from each other, are parallel to each other and are at least partially opposite to each other; and

The first radio frequency conductor penetrates through the first outer end cover and the first plane conductive piece, and is electrically connected with the inner edge of the first plane conductive piece; the first radio frequency conductor has a first pair of outer ends exposed to the hollow housing and a first pair of inner ends electrically connected to the first capacitive conductive element;

The second radio frequency conductor penetrates through the second outer end cover and the second planar conductive piece, and is electrically connected with the inner edge of the second planar conductive piece; the second radio frequency conductor has a second pair of outer ends exposed to the hollow housing and a second pair of inner ends electrically connected to the second capacitive conductive element;

A virtual symmetrical plane exists between the first capacitive conductive piece and the second capacitive conductive piece, and the first capacitive conductive piece and the second capacitive conductive piece, the first plane conductive piece and the second plane conductive piece, the first outer end cover and the second outer end cover are symmetrical about the virtual symmetrical plane; the inner shell body and the outer shell body are provided with a setting space for a protection device, and the protection device is electrically connected with the inner shell body and the outer shell body at the same time so as to absorb and inhibit strong electromagnetic pulse on any one of the first radio frequency conductor and the second radio frequency conductor.

2. The rf device of claim 1, wherein the first planar conductive member and the second planar conductive member are each planar metal plates, and wherein the planar metal plates are axisymmetric planar structures.

3. The radio frequency device of claim 1, wherein the hollow inner housing further comprises a first inner end cap and a second inner end cap at the two open ends of the inner housing body, respectively, the first inner end cap and the second inner end cap being electrically conductive, and the first inner end cap and the second inner end cap being symmetrical about the virtual plane of symmetry;

The first inner end cap is positioned between the first planar conductive member and the first outer end cap, and the first radio frequency conductor passes through the first inner end cap; the outer edge of the first inner end cover is simultaneously in electrical contact with the inner shell body and the first plane conductive piece, and the inner edge is electrically isolated from the first radio frequency conductor;

The second inner end cap is located between the second planar conductive member and the second outer end cap, and the second radio frequency conductor passes through the second inner end cap; the outer edge of the second inner end cover is simultaneously in electrical contact with the inner shell body and the second planar conductive member, and the inner edge is electrically isolated from the second radio frequency conductor.

4. The radio frequency device of claim 3, wherein the radio frequency device further comprises:

The first insulating layer is arranged between the first outer end cover and the first inner end cover;

The second insulating layer is arranged between the second outer end cover and the second inner end cover;

the first insulating layer and the second insulating layer are non-metal entity layers, and the first insulating layer and the second insulating layer are symmetrical with respect to the virtual symmetry plane.

5. The radio frequency device of claim 1, wherein the radio frequency device further comprises:

The third insulating layer is arranged between the first capacitive conductive piece and the second capacitive conductive piece, is symmetrical about the virtual symmetry plane and is a non-metal entity layer; the first capacitive conductive piece and the second capacitive conductive piece are fixed into a whole through the third insulating layer.

6. The radio frequency device according to any one of claims 1 to 5, wherein the outer housing body is provided with a mounting hole therethrough, the mounting hole being configured for a shielding device to pass from the outer housing body between the outer housing body and the inner housing body to simultaneously electrically connect with the outer housing body and the inner housing body, the shielding device being configured to absorb and suppress strong electromagnetic pulses on any one of the first radio frequency conductor and the second radio frequency conductor.

7. The radio frequency device of claim 6, wherein the housing body further has a first securing structure thereon configured to detachably secure engagement with a second securing structure of the shielding device to secure the shielding device to the housing body.

8. A rf strong electromagnetic pulse protector comprising a protector and a rf device as claimed in any one of claims 1 to 7, the protector being disposed between the outer housing body and the inner housing body and having one end electrically connected to the outer housing body and the other end electrically connected to the inner housing body, the protector being configured to absorb and suppress a strong electromagnetic pulse on any one of the first and second rf conductors.

9. The rf strong electromagnetic pulse shield of claim 8, wherein the shield is a shorting feature that shorts the inner housing body to the outer housing body to an equipotential body.

10. A radio frequency device assembling method, characterized by being applied to the assembling of the radio frequency device according to any one of claims 1 to 7, comprising:

Providing an outer shell assembly and an inner shell assembly, wherein the outer shell assembly comprises an outer shell body and a first outer end cover covered at an opening end of the outer shell body, and the inner shell assembly comprises an inner shell body and a first plane conductive piece arranged in the inner shell body;

Loading the inner housing assembly from an open end of the outer housing assembly;

Forming a first intermediate assembly from the first capacitive conductive element at the first pair of inner ends of the first radio frequency conductor and forming a second intermediate assembly from the second capacitive conductive element at the second pair of inner ends of the second radio frequency conductor;

Assembling an intermediate structural member comprising the first intermediate assembly and the second intermediate assembly from the open end of the inner housing assembly, such that the first pair of outer ends of the first radio frequency conductor sequentially pass through the through-hole in the first planar conductive member and the through-hole in the first outer end cap;

loading the second planar conductive member into the inner housing body from the open end of the outer housing assembly such that the second pair of outer ends of the second radio frequency conductor pass through the through-holes in the second planar conductive member;

And arranging the second outer end cover at the opening end of the outer shell assembly, and enabling the second pair of outer ends of the second radio frequency conductor to pass through the through holes in the second outer end cover.