CN206725745U - A kind of Large-power High-Speed ionosonde transmit-receive switch - Google Patents

Abstract

The utility model relates to radar equipment transceiver technology, in particular to a high-power high-speed ionospheric detector transceiver switch, including a computer, an ionospheric detector and a short-wave dipole antenna; also includes a drive circuit, a transceiver switch, the drive circuit and The transceiver switch is connected, the transceiver switch is connected with the ionospheric detector through the control bus, and the computer is connected with the control bus; the short-wave dipole antenna is connected to the transceiver switch. The transceiver switch achieves the goal of high-power high-speed switching; by improving the drive circuit structure and switch topology, the integration of single-antenna transceiver is realized, and it has high-power high-speed switching, low insertion loss and high isolation. The requirements for the site and the complexity of erection are reduced, and the problem of signal energy coupling is solved at the same time, so that the ionospheric detector has the characteristics of being portable.

Description

A high-power high-speed ionospheric detector transceiver switch

technical field

The utility model belongs to the technical field of transmitting and receiving of radar equipment, in particular to a transmitting and receiving switch of a high-power high-speed ionospheric detector.

Background technique

The ionospheric sounder is a radar system working in the short-wave frequency band. According to the principle that the ionosphere reflects radio signals in the short-wave frequency band, it can observe the ionosphere in real time and obtain the scattering function of the ionospheric channel, and then through inversion The change characteristics of the ionosphere height and its electron concentration are obtained. The current ionospheric detectors basically use two or more antennas for detection. The transmitting antenna and the receiving antenna are placed separately, which has high requirements for the detection site. At the same time, the complexity of the antenna erection and the signal energy between the antennas Coupling will also have a certain impact on the detection effect.

Therefore, using the transceiver switch to switch the transceiver mode of a single short-wave antenna has important engineering practical significance for ionospheric detection. The encoding method and working sequence adopted by the ionospheric sounder require that the transceiver switch used not only work in the short-wave frequency band, but also have the characteristics of high power withstand, fast switching speed, and high isolation.

Utility model content

The purpose of this utility model is to provide a high-power high-speed ionospheric detector transceiver switch that can quickly switch between transmitting high-efficiency signals and receiving echo signals through a single antenna. , High isolation characteristics.

In order to achieve the above object, the technical solution adopted in the utility model is: a high-power high-speed ionospheric detector transceiver switch, including a computer, an ionospheric detector and a short-wave dipole antenna; also includes a drive circuit, a transceiver switch, the described The drive circuit is connected with the transceiver switch, the transceiver switch is connected with the ionospheric detector through the control bus, and the computer is connected with the control bus; the short-wave dipole antenna is connected with the transceiver switch.

In the above-mentioned transceiver switch of the high-power high-speed ionospheric detector, the timing control interface, the transmitting port and the receiving port of the transceiver switch are respectively connected to the ionospheric detector.

In the above-mentioned high-power high-speed ionospheric detector transceiver switch, the control bus adopts USB bus control, and uses USB2.0 protocol for control.

In the above-mentioned transceiver switch of the high-power high-speed ionospheric sounder, the drive circuit provides a large voltage drive of more than ±240V for the transceiver switch.

In the above-mentioned high-power high-speed ionospheric detector transceiver switch, the insertion loss of the transceiver switch is lower than 0.5dB, the isolation is greater than 80dB, and the switching speed of responding to the transmission command and the reception command is within 30 microseconds; the transceiver switch The standing wave ratio with the shortwave dipole antenna is lower than 1.5.

In the above-mentioned high-power high-speed ionospheric detector transceiver switch, the basic topology of the transceiver switch is a serial-parallel structure, and the core device is a PIN diode.

In the above-mentioned high-power high-speed ionospheric detector transceiver switch, the drive circuit adopts a symmetrical structure of MOSFET and triode.

In the above-mentioned high-power high-speed ionospheric detector transceiver switch, the maximum power of the transceiver switch can reach 300W.

The beneficial effects of the utility model are: the advantages of the transceiver switch are applied to the ionospheric detector, and the goal of high-power high-speed switching is realized; by improving the structure of the drive circuit and the topology of the switch, the integration of the transceiver with a single antenna is realized. High-power high-speed switching characteristics, while providing low insertion loss and high isolation. The requirements for the site and the complexity of erection are reduced, and the problem of signal energy coupling is solved at the same time, so that the ionospheric detector has the characteristics of being portable.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the utility model;

Fig. 2 is the driving circuit diagram of an embodiment of the utility model;

Fig. 3 is a switch topological structure diagram of an embodiment of the utility model;

Fig. 4 is the standing wave ratio figure of the transceiver switch and the shortwave dipole antenna of an embodiment of the present invention;

Fig. 5 is an output diagram of the driving voltage of the transceiver switch according to an embodiment of the present invention;

Fig. 6 is a switching speed diagram between the on state and the off state of the transceiver switch according to an embodiment of the present invention;

detailed description

Embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings.

Examples of the described embodiments are shown in the drawings, wherein like or similar reference numerals designate like or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are only used to explain the present invention, and cannot be construed as limiting the present invention.

The following disclosure provides many different embodiments or examples for realizing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. They are examples only and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. Additionally, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials. Additionally, configurations described below in which a first feature is "on" a second feature may include embodiments where the first and second features are formed in direct contact, and may include additional features formed between the first and second features. For example, such that the first and second features may not be in direct contact.

In the description of the present utility model, it should be noted that, unless otherwise stipulated and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements , may be directly connected, or may be indirectly connected through an intermediary. Those of ordinary skill in the related art can understand the specific meanings of the above terms according to specific situations.

The present embodiment adopts following technical scheme: a kind of high-power high-speed ionospheric detector transceiver switch, including computer, ionospheric detector and short-wave dipole antenna; also includes drive circuit, transceiver switch, and described drive circuit is connected with transceiver switch , the transceiver switch is connected to the ionospheric detector through a control bus, and the computer is connected to the control bus; the short-wave dipole antenna is connected to the transceiver switch.

Further, the timing control interface, the transmitting port and the receiving port of the transceiver switch are respectively connected to the ionospheric detector.

Further, the control bus adopts USB bus control, using USB2.0 protocol for control.

Further, the drive circuit provides a large voltage drive of more than ±240V for the transceiver switch.

Further, the insertion loss of the transceiver switch is lower than 0.5dB, the isolation is greater than 80dB, and the switching speed in response to the transmission command and the reception command is within 30 microseconds; the standing wave ratio of the transceiver switch and the short-wave dipole antenna lower than 1.5.

Further, the basic topology of the transceiver switch is a serial-parallel structure, and the core device is a PIN diode.

Further, the driving circuit adopts a symmetrical structure of MOSFET and triode.

Furthermore, the power of the transceiver switch can be up to 300W.

During specific implementation, a high-power high-speed ionospheric detector transceiver switch includes: a drive circuit, a transceiver switch, an ionospheric detector and a short-wave dipole antenna, the drive circuit provides a large voltage drive for the transceiver switch, and the ionospheric detector controls The transceiver switch can switch the function of transmitting high-power signals and receiving echo signals only through a single short-wave dipole antenna.

Moreover, the driving circuit is connected with the transceiver switch, and provides a large voltage drive of up to ±240V for the transceiver switch.

Moreover, the transceiver switch is connected to the transmitting port, the receiving port, and the single short-wave dipole antenna of the ionospheric detector, and the transceiver switch connects the single short-wave dipole antenna to the ionospheric detector according to the requirements of the ionospheric detector to transmit high-power signals. The transmitting port of the instrument is connected and isolated from the receiving port to form a high-power signal transmission. The transceiver switch connects the short-wave dipole antenna to the receiving port of the ionospheric detector and isolates it from the transmitting port according to the requirement of the ionospheric detector to receive the echo signal, so as to form the echo signal reception.

Moreover, the insertion loss of the transceiver switch is lower than 0.5dB, and the isolation is greater than 80dB; the switching speed of the transceiver switch in response to the transmitting command and the receiving command is within 30 microseconds; the standing wave ratio of the transceiver switch and the short-wave dipole antenna is lower than 1.5.

Moreover, the control bus adopts USB bus control, using USB2.0 protocol for control.

Moreover, the basic topology used by the transceiver switch is a serial-parallel structure. The core device of the transceiver switch is a PIN diode.

Moreover, the drive circuit uses a symmetrical structure of MOSFETs and triodes.

Moreover, the transceiver switch can withstand power up to 300W.

As shown in FIG. 1 , the transceiver switch of the ionospheric detector in this embodiment includes: a drive circuit, a transceiver switch, an ionospheric detector and a short-wave dipole antenna. The driving circuit is connected to the transceiver switch, the timing control interface, the transmitting port, and the receiving port of the transmitting and receiving switch are respectively connected to the ionospheric detector, and the short-wave dipole antenna is connected to the transmitting and receiving switch, and the ionospheric detector controls to select the transmitting channel or the receiving port. The conduction of the channel realizes the switching of transmitting high-power signals or receiving echo signals.

As shown in Figure 2, the drive circuit skillfully uses the symmetrical structure of the circuit to provide a large voltage requirement for the transceiver switch.

As shown in Figure 3, the topology of the transceiver switch brings lower insertion loss and higher isolation.

As shown in Figure 4-6, the driving circuit voltage of the traditional transceiver switch is not high enough, the switching speed is not fast enough, and the standing wave ratio is also high after connecting with the transceiver antenna. The high-power high-speed transceiver switch of this embodiment can provide up to ± With a voltage of 240V, the switching speed of the transceiver switch is within 20 microseconds, and the standing wave ratio with the shortwave dipole antenna is within 1.5.

The actual detection results show that the sending and receiving effect of this embodiment is similar to that of commonly used sending and receiving antennas, and has a high signal-to-noise ratio. The instrument's application requirements for high-power high-speed transceiver switches.

It should be understood that the parts not described in detail in this specification belong to the prior art.

Although the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, those of ordinary skill in the art should understand that these are only examples, and various variations or modifications can be made to these embodiments without departing from the principles of the present invention. principle and substance. The scope of the invention is limited only by the appended claims.

Claims (8)

1. a kind of Large-power High-Speed ionosonde transmit-receive switch, including computer, ionosonde and shortwave dipole Antenna；Characterized in that, also including drive circuit, transmit-receive switch, the drive circuit is connected with transmit-receive switch, and the transmitting-receiving is opened Pass is connected by controlling bus with ionosonde, and the computer connects controlling bus；The shortwave dipole antenna connects Enter transmit-receive switch.

2. Large-power High-Speed ionosonde transmit-receive switch as claimed in claim 1, it is characterised in that the transmit-receive switch SECO interface, emission port and receiving port be connected respectively with the ionosonde.

3. Large-power High-Speed ionosonde transmit-receive switch as claimed in claim 1, it is characterised in that the controlling bus Controlled using usb bus, be controlled using USB2.0 agreements.

4. Large-power High-Speed ionosonde transmit-receive switch as claimed in claim 1, it is characterised in that the drive circuit ± more than 240V big voltage driving is provided for the transmit-receive switch.

5. Large-power High-Speed ionosonde transmit-receive switch as claimed in claim 1, it is characterised in that the transmit-receive switch Insertion loss be less than 0.5dB, isolation is more than 80dB, response firing order with receive the switch speed of instruction 30 microseconds with It is interior；The standing-wave ratio of the transmit-receive switch and the shortwave dipole antenna is less than 1.5.

6. Large-power High-Speed ionosonde transmit-receive switch as claimed in claim 1, it is characterised in that the transmit-receive switch Basic Topological for string and structure, core devices are PIN diode.

7. Large-power High-Speed ionosonde transmit-receive switch as claimed in claim 1, it is characterised in that the drive circuit Using MOSFET and triode symmetrical structure.

8. Large-power High-Speed ionosonde transmit-receive switch as claimed in claim 1, it is characterised in that the transmit-receive switch Bear power and reach as high as 300W.