CN112688651B - Single-pole multi-throw switch with high harmonic suppression - Google Patents
Single-pole multi-throw switch with high harmonic suppression Download PDFInfo
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- CN112688651B CN112688651B CN202011375855.4A CN202011375855A CN112688651B CN 112688651 B CN112688651 B CN 112688651B CN 202011375855 A CN202011375855 A CN 202011375855A CN 112688651 B CN112688651 B CN 112688651B
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Abstract
The invention relates to a single-pole multi-throw switch with high harmonic suppression, relates to a radio frequency switch device, and belongs to the technical field of basic electrical elements. The high harmonic suppression switch comprises an input transmission line, one end of the input transmission line is an input end, the other end of the input transmission line is connected to one ends of a plurality of harmonic control circuits, the other end of each harmonic control circuit is connected to one end of each corresponding switch arm, the other end of each switch arm is an output end, each harmonic control circuit is composed of an inductor, a capacitor and a tube core, and the phase of harmonic is changed by selecting proper inductors, capacitors and tube cores to be connected in series and in parallel, so that high harmonic suppression is realized. On the basis of the single-pole double-throw switch, a plurality of harmonic control circuits and switch arms are added, and the single-pole double-throw switch is formed.
Description
Technical Field
The invention discloses a single-pole multi-throw switch with high harmonic suppression, and belongs to the technical field of basic electrical elements.
Background
In an electronic communication system, a switch is used as a control element for controlling the on-off of a signal, and the switch is widely applied to a radar system, a microwave communication system and a measuring system, particularly a transceiving component. The technical indexes of the switch mainly include working frequency band, insertion loss, isolation, switching time, harmonic suppression, power capacity and the like, but the traditional switch has poor electrical performance indexes which are mainly expressed as follows: 1) The harmonic suppression is low; 2) The power capacity is small; 3) The area is large; 4) Large insertion loss, etc., which limits the widespread use of such products in complex electromagnetic environments.
Disclosure of Invention
The invention provides a single-pole multi-throw switch with high harmonic suppression, which aims to overcome the defects of the background technology, provide the single-pole multi-throw switch with high harmonic suppression, realize high harmonic suppression and high-power capacity on the premise of not increasing loss and area, and solve the problem of interference of harmonic waves generated by the conventional switch module in a complex electromagnetic environment, particularly during high-power work on other systems.
The technical solution of the invention is as follows: the structure of the single-pole multi-throw switch with high harmonic suppression comprises a transmission line, n harmonic control circuits and n switch arms, wherein n is larger than or equal to 2, one end of the transmission line is connected with an input end radio frequency port, the other end of the transmission line is connected with signal input ends of the harmonic control circuits, a signal output end of each harmonic control circuit is connected with one end of the corresponding switch arm, and the other end of each switch arm is connected with an output end radio frequency port.
The harmonic control circuit comprises a control tube core, an inductor and a capacitor, any two elements of the three elements are connected in series and then connected with the third element in parallel, and the harmonic control circuit is one of the following three conditions:
(1) The inductor and the capacitor are connected in series and then connected in parallel with the control tube core, the common end of the control tube core and the capacitor is connected with the common end of the transmission line and other harmonic control circuits, and the common end of the control tube core and the inductor is connected with one end of the switch arm;
(2) The inductor and the control tube core are connected in series and then connected in parallel with the capacitor, the common end of the control tube core and the capacitor is connected with the common end of the transmission line and the common end of other harmonic control circuits, and the common end of the capacitor and the inductor is connected with one end of the switch arm;
(3) The capacitor and the control tube core are connected in series and then connected in parallel with the inductor, the common end of the control tube core and the inductor is connected with the common end of the transmission line and other harmonic control circuits, and the common end of the capacitor and the inductor is connected with one end of the switch arm.
The harmonic control circuit comprises a control tube core and one of a capacitor or an inductor, wherein the control tube core is connected with the capacitor or the inductor in parallel and is one of the following two conditions:
(1) The control tube core is connected with the capacitor in parallel, one end of the control tube core is connected with the common end of the transmission line and other harmonic control circuits, and the other end of the control tube core is connected with the switch arm;
(2) The control tube core is connected with the inductor in parallel, one end of the control tube core is connected with the common end of the transmission line and other harmonic control circuits, and the other end of the control tube core is connected with the switch arm.
The signal input end A and the signal output end B of the harmonic control circuit HC can be interchanged according to impedance requirements.
The control tube core in the harmonic control circuit is formed by connecting one or more control tube cores in series, and the control tube core is one of a field effect tube control element, a PIN diode control element, a bipolar junction transistor control element or a micro-electromechanical control element.
The switch arm comprises a first transmission line, a second transmission line, a control tube core and a grounding line, wherein the control tube cores are connected in parallel or in series and are one of the following two conditions:
(1) One end of the first transmission line is connected with the harmonic control circuit, the other end of the first transmission line is connected with the common end of the control tube core and the second transmission line, the other end of the control tube core is connected with the grounding wire, and the other end of the second transmission line is connected with the radio frequency port;
(2) One end of the first transmission line is connected with the harmonic control circuit, the other end of the first transmission line is connected with one end of the control tube core, the other end of the control tube core is connected with one end of the second transmission line, and the other end of the second transmission line is connected with the radio frequency port.
The switch arm is internally provided with n transmission lines and n-1 control tube cores which are mutually connected in series, n is more than or equal to 2, the common end point of two adjacent transmission lines is connected with one end of each control tube core Fa, the other end of each control tube core Fa is grounded, the first transmission line is connected with the harmonic control circuit, and the last transmission line is connected with the radio frequency port.
N transmission lines which are mutually connected in series and n-1 control tube cores which are connected in series or in parallel are arranged in the switch arm, wherein n is more than or equal to 3, a control tube cores are connected in parallel, one end of each control tube core is connected with the common end point of two adjacent transmission lines, and the other end of each control tube core is grounded; n-1-a control tube cores are connected in series, one end of each control tube core is connected with a transmission line, the other end of each control tube core is connected with an adjacent transmission line, and a is more than or equal to 1; the first transmission line is connected with the harmonic control circuit, and the last transmission line is connected with the radio frequency port.
The single-pole multi-throw switch material is made of any one or more of Si, gaAs, gaN, siGe, inP, high polymer synthetic resin or ceramic.
The n harmonic control circuits are any one or combination of multiple conditions, the n switch arms are any one or combination of multiple conditions, and the length of one or more transmission lines is zero.
The invention has the beneficial effects that:
(1) On the basis of the traditional single-pole multi-throw switch, the harmonic control circuit is introduced, so that on one hand, the harmonic control circuit participates in impedance matching to realize low insertion loss; on the other hand, the phase of the harmonic wave is greatly changed, and the single-pole multi-throw power switch with high harmonic wave suppression is realized.
(2) The invention adds a plurality of switch arms on the basis of the single-pole double-throw switch, thus forming the single-pole double-throw switch, and the invention has convenient use and simple control.
In summary, the high harmonic suppression single-pole multi-throw switch disclosed by the invention has the characteristics of high harmonic suppression, low insertion loss, large bearing power, small area and the like, and is particularly suitable for application design as a high-power transceiving switch in a complex electromagnetic environment.
Drawings
Fig. 1 is a block diagram of a disclosed high harmonic rejection single pole double throw switch.
Fig. 2 is a circuit topology structure diagram of the high harmonic suppression single-pole double-throw switch according to embodiment 1 of the present invention.
Fig. 3 is a topology structure diagram of a harmonic control circuit in the high harmonic suppression single-pole multi-throw switch circuit according to embodiment 2 of the present invention.
Fig. 4 is a topology structure diagram of a switch arm circuit in the high harmonic suppression single-pole multi-throw switch circuit shown in embodiment 3 of the present invention
Fig. 5 is a block diagram of a plurality of switch arms in the high harmonic rejection single pole multiple throw switch circuit according to embodiment 2 of the present invention.
RFC, RF1, RF2, RFn are radio frequency ports, ML is transmission line, HC1, HC2 are harmonic control circuits, SW1, SW2, SWn are switch arms, F, F, F2, fa1, fa2 are control dies, L, L, L2 are inductance, C, C, C2 are capacitance, ma11, ma12, ma21, ma22 are transmission lines.
Detailed Description
As shown in fig. 1, a single-pole multi-throw switch with high harmonic suppression comprises an input transmission line with one end as an input end, the other end of the input transmission line is simultaneously connected to one end of a plurality of harmonic control circuits, the other end of each harmonic control circuit is connected to one end of each corresponding switch arm, and the other end of each switch arm is an output end.
The harmonic control circuit consists of an inductor, a capacitor and a tube core, and the input port and the output port of the harmonic control circuit can be interchanged according to the impedance state.
The harmonic control circuit can be formed by connecting any two of an inductor, a capacitor and a tube core in series and then connecting the third element in parallel.
The harmonic control circuit may also be formed by an inductance in parallel with the die or by a capacitance in parallel with the die.
The die in the harmonic control circuit is composed of one or more dies connected in series.
The switch arm at least comprises a control tube core and two output transmission lines which are connected in series; the channel of the control die is connected between the common terminal of two adjacent output transmission lines and ground or between two adjacent output transmission lines.
The tube core is a field effect tube control element or a PIN diode control element or a bipolar junction transistor control element or a micro-electromechanical control element.
The switch group is composed of at least two switch arms.
Is made of one or more of Si, gaAs, gaN, siGe, inP, polymer synthetic resin or ceramic.
The technical scheme of the invention is further explained by combining the attached drawings
Example 1
As shown in fig. 2, the high-harmonic rejection switch is composed of a radio frequency port RFC, a radio frequency port RF1, a radio frequency port RF2, a transmission line ML, a harmonic control circuit HC1, a harmonic control circuit HC2, a first switch arm SW1, and a second switch arm SW 2. One end of the transmission line ML is connected with the radio frequency port RFC, the other end of the transmission line ML is connected with the common end of the harmonic control circuit HC1 and the harmonic control circuit HC2, the other end of the harmonic control circuit HC1 is connected with one end of the first switch arm SW1, the other end of the first switch arm SW1 is connected with the radio frequency port RF1, the other end of the harmonic control circuit HC2 is connected with one end of the second switch arm SW2, and the other end of the second switch arm SW2 is connected with the radio frequency port RF2.
The harmonic control circuit HC1 comprises a control tube core F1, an inductor L1 and a capacitor C1, the inductor L1 and the capacitor C1 are connected in series and then connected in parallel with the control tube core F1, the common end of the control tube core F1 and the capacitor C1 is connected to the common end of the transmission line ML and the harmonic control circuit HC2, and the common end of the control tube core F1 and the inductor L1 is connected to one end of the first switch arm SW 1.
The harmonic control circuit HC2 comprises a control tube core F2, an inductor L2 and a capacitor C2, the inductor L2 and the capacitor C2 are connected in series and then connected in parallel with the control tube core F2, the common end of the control tube core F2 and the capacitor C2 is connected to the common end of the transmission line ML and the harmonic control circuit HC1, and the common end of the control tube core F2 and the inductor L2 is connected to one end of the second switch arm SW 2.
The first switch arm SW1 comprises a transmission line Ma11, a transmission line Ma12, a control die Fa1 and a ground line, one end of the control die Fa1 is connected with the ground line, the other end of the control die Fa1 is connected to the common end of the transmission line Ma11 and the transmission line Ma12, the other end of the transmission line Ma11 is connected with one end of a harmonic control circuit HC1, and the other end of the transmission line Ma12 is connected with a radio frequency port RF 1.
The second switch arm SW2 comprises a transmission line Ma21, a transmission line Ma22, a control die Fa2 and a ground line, one end of the control die Fa2 is connected with the ground line, the other end of the control die Fa2 is connected with the common end of the transmission line Ma21 and the transmission line Ma22, the other end of the transmission line Ma21 is connected with one end of a harmonic control circuit HC2, and the other end of the transmission line Ma22 is connected with a radio frequency port RF2.
The signal input port and the signal output port of the harmonic control circuit HC1 and the harmonic control circuit HC2 can be interchanged according to impedance requirements.
Example 2
In addition to embodiment 1, the harmonic control circuit HC has a composition form as shown in fig. 3.
In fig. 3, (a) the harmonic control circuit HC includes a control die F, an inductor L, and a capacitor C, the control die F and the inductor L are connected in series and then connected in parallel with the capacitor C, and a signal input port a and a signal output port B of the harmonic control circuit HC may be interchanged according to impedance requirements.
The harmonic control circuit HC in fig. 3 (B) includes a control die F, an inductor L, and a capacitor C, the control die F and the capacitor C are connected in series and then connected in parallel with the inductor L, and a signal input port a and a signal output port B of the harmonic control circuit HC may be interchanged according to impedance requirements.
The (c) harmonic control circuit HC in fig. 3 includes a control die F and an inductance L, the control die F being connected in parallel with the inductance L.
The harmonic control circuit HC in fig. 3 (d) includes a control die F and a capacitor C, the control die F being connected in parallel with the capacitor C.
The control die F in the harmonic control circuit HC of fig. 3 (e) may be composed of n control dies Fi, n being at least 1.
Example 3
On the basis of embodiment 1, the switch arm SW is formed as shown in fig. 4.
In (a) of fig. 4, first to eighth transmission lines Ma1 to Ma8 are provided in the switch arm SW in series with each other. The common end of the two adjacent transmission lines is also connected with one end of the control tube core Fa, so that seven control tubes Fa are in total. The other end of each control die Fa is grounded.
Seven control dies Fa are also connected in series or in parallel between the first transmission line Ma1 to the eighth transmission line Ma8 in the switch arm SW in fig. 4 (b). Where one end of the parallel control die Fa is connected to ground and the other end is connected to the common end of the two transmission lines. Two output microstrip lines are arranged between two adjacent parallel control tube cores Fa, and a control tube core Fa is connected in series between the two transmission lines. The signal input port C and the signal output port D of the switch arm SW can be interchanged according to impedance requirements.
Example 4
On the basis of embodiment 1, as shown in fig. 5, the high harmonic rejection switch may further have n switching legs, where n is at least 2. One end of the transmission line ML is connected with the RFC, the other end of the transmission line ML is connected with the public end of the plurality of switch branches, and the other end of each switch branch is connected with the RFn. Each switch branch comprises a harmonic control circuit HCn and an nth switch arm SWn, one end of the nth switch arm SWn is connected with the radio frequency port RFn, the other end of the nth switch arm SWn is connected with one end of a harmonic control circuit HCn, and the other end of a harmonic control circuit HCn is connected with the common end of the transmission line ML and other switch branches.
The harmonic control circuit HCn may have any circuit configuration of embodiments 1 and 2, and the nth switch arm SWn may have any circuit configuration of embodiments 1 and 3.
Claims (9)
1. The single-pole multi-throw switch with high harmonic suppression is characterized by structurally comprising a transmission line, n harmonic control circuits and n switch arms, wherein n is more than or equal to 2, one end of the transmission line is connected with an input end radio frequency port, the other end of the transmission line is connected with signal input ends of the harmonic control circuits, the signal output end of each harmonic control circuit is respectively connected with one end of the corresponding switch arm, and the other end of each switch arm is connected with an output end radio frequency port;
the harmonic control circuit comprises a control tube core, an inductor and a capacitor, wherein any two elements of the three elements are connected in series and then connected with a third element in parallel, and the harmonic control circuit is one of the following three conditions:
(1) The inductor and the capacitor are connected in series and then connected in parallel with the control tube core, the common end of the control tube core and the capacitor is connected with the common end of the transmission line and other harmonic control circuits, and the common end of the control tube core and the inductor is connected with one end of the switch arm;
(2) The inductor and the control tube core are connected in series and then connected in parallel with the capacitor, the common end of the control tube core and the capacitor is connected with the common end of the transmission line and other harmonic control circuits, and the common end of the capacitor and the inductor is connected with one end of the switch arm;
(3) The capacitor and the control tube core are connected in series and then connected in parallel with the inductor, the common end of the control tube core and the inductor is connected with the common end of the transmission line and other harmonic control circuits, and the common end of the capacitor and the inductor is connected with one end of the switch arm.
2. The switch of claim 1, wherein the harmonic control circuit comprises a control die and one of a capacitor or an inductor, the control die being connected in parallel with the capacitor or the inductor and being one of:
(1) The control tube core is connected with the capacitor in parallel, one end of the control tube core is connected with the common end of the transmission line and other harmonic control circuits, and the other end of the control tube core is connected with the switch arm;
(2) The control tube core is connected with the inductor in parallel, one end of the control tube core is connected with the common end of the transmission line and other harmonic control circuits, and the other end of the control tube core is connected with the switch arm.
3. The switch of claim 1, wherein the harmonic control circuit comprises a signal input terminal a and a signal output terminal B that are interchanged according to impedance requirements.
4. The swt with high harmonic rejection of claim 1, wherein the harmonic control circuit has a control die comprising one or more control dies connected in series, the control die being one of a field effect transistor control element, a PIN diode control element, a bipolar junction transistor control element, or a micro-electromechanical control element.
5. The single-pole-multiple-throw switch with high harmonic rejection of claim 1, wherein the switch arm comprises a first transmission line, a second transmission line, a control die, and a ground line, the control die being connected in parallel or in series, the control die being one of:
(1) One end of the first transmission line is connected with the harmonic control circuit, the other end of the first transmission line is connected with the common end of the control tube core and the second transmission line, the other end of the control tube core is connected with the grounding wire, and the other end of the second transmission line is connected with the radio frequency port;
(2) One end of the first transmission line is connected with the harmonic control circuit, the other end of the first transmission line is connected with one end of the control tube core, the other end of the control tube core is connected with one end of the second transmission line, and the other end of the second transmission line is connected with the radio frequency port.
6. The single-pole multi-throw switch with high harmonic suppression according to claim 1, wherein the switch arm has n transmission lines and n-1 control dies connected in series, n is greater than or equal to 2, the common end of two adjacent transmission lines is connected to one end of the control die Fa, the other end of each control die Fa is grounded, the first transmission line is connected to the harmonic control circuit, and the last transmission line is connected to the rf port.
7. The single-pole multi-throw switch with high harmonic suppression according to claim 1, wherein n transmission lines connected in series and n-1 control dies connected in series or in parallel are arranged in the switch arm, n is greater than or equal to 3, wherein a control dies are connected in parallel, one end of each control die is connected with a common end point of two adjacent transmission lines, and the other end of each control die is grounded; n-1-a control tube cores are connected in series, one end of each control tube core is connected with a transmission line, the other end of each control tube core is connected with an adjacent transmission line, and a is more than or equal to 1; the first transmission line is connected with the harmonic control circuit, and the last transmission line is connected with the radio frequency port.
8. The switch of claim 1, wherein the single-pole, multiple-throw switch material is made of one or more of Si, gaAs, gaN, siGe, inP, polymer composite resin, or ceramic.
9. The switch of claim 1, 2, 5, 6 or 7, wherein the n harmonic control circuits are in any one or combination of conditions, the n switch legs are in any one or combination of conditions, and the length of one or more transmission lines is zero.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011375855.4A CN112688651B (en) | 2020-11-30 | 2020-11-30 | Single-pole multi-throw switch with high harmonic suppression |
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| CN202011375855.4A CN112688651B (en) | 2020-11-30 | 2020-11-30 | Single-pole multi-throw switch with high harmonic suppression |
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| CN112688651B true CN112688651B (en) | 2022-10-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113285697B (en) * | 2021-05-31 | 2023-04-18 | 电子科技大学 | Matching reconfigurable ultra-wideband single-pole multi-throw radio frequency switch |
| CN113839659B (en) * | 2021-08-11 | 2023-08-08 | 中国电子科技集团公司第二十九研究所 | High-isolation single-pole double-throw switch circuit |
| CN113852394A (en) * | 2021-12-01 | 2021-12-28 | 华南理工大学 | Filtering switch chip and wireless communication transceiver |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000223903A (en) * | 1999-02-02 | 2000-08-11 | Mitsubishi Electric Corp | Microwave circuit |
| CN102204100B (en) * | 2008-11-05 | 2013-12-25 | 日立金属株式会社 | High-frequency circuit, high-frequency part, and multiband communication device |
| CN103618528B (en) * | 2013-10-11 | 2017-12-12 | 中国电子科技集团公司第五十五研究所 | A kind of microwave single-pole multi-throw switch |
| CN103873039A (en) * | 2014-03-04 | 2014-06-18 | 电子科技大学 | Adsorption-type single-pole eight-throw switch |
| CN204967787U (en) * | 2015-08-27 | 2016-01-13 | 成都创新达微波电子有限公司 | High isolation millimeter wave hilted broadsword multithrow switch |
| CN110212888A (en) * | 2018-12-20 | 2019-09-06 | 佛山臻智微芯科技有限公司 | A kind of high Low-Pass Filter digital phase shifter structure of micro-strip |
| CN211352163U (en) * | 2019-12-31 | 2020-08-25 | 上海麓慧科技有限公司 | Radio frequency switch circuit, radio frequency switch chip and wireless communication equipment |
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