CN113114182A - High-power electronic transceiving switch circuit and switch module - Google Patents
High-power electronic transceiving switch circuit and switch module Download PDFInfo
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- CN113114182A CN113114182A CN202110321672.2A CN202110321672A CN113114182A CN 113114182 A CN113114182 A CN 113114182A CN 202110321672 A CN202110321672 A CN 202110321672A CN 113114182 A CN113114182 A CN 113114182A
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Abstract
The invention discloses a high-power electronic transceiving switch circuit and a switch module, and belongs to the technical field of transceiving switches. The radio frequency circuit adopts an asymmetric switch circuit structure, and a high-power high-back-voltage PIN diode with large junction capacitance is used in a transmitting path, so that the insertion loss of the transmitting path can be reduced; the receiving channel uses a high-power high-back-voltage PIN diode with smaller junction capacitance, so that the influence of parasitic parameters of a high-power device on high-frequency performance can be reduced, and the working bandwidth is expanded; the control circuit is realized on the basis of a circuit inverting driver and a high-voltage field effect transistor, can be controlled through a TTL level signal, and provides a high-voltage signal with logic and rapid switching, so that the high-power PIN diode is controlled to work.
Description
Technical Field
The invention relates to the technical field of transceiving switches, in particular to a high-power electronic transceiving switch circuit and a switch module, which can be used as a VHF/UHF band broadband high-power electronic transceiving switch.
Technical Field
Currently, frequency hopping communications are gradually emerging, and the frequency hopping speed is very fast, up to 1000 hops/second. To track and process the frequency hopping communication target, the selected transceiver switch must be fast to switch and have sufficient operating bandwidth and power capacity to meet the requirements.
The commonly used high-power transceiving switches are of two types, namely an electromagnetic relay switch and an electronic switch. The electromagnetic relay switch has the advantages of wide working bandwidth, small insertion loss and large power capacity. However, the switching speed of the switch is slow, in the order of tens of milliseconds, and the mechanical life problem exists, generally millions of times. The electronic switch has the advantages of high switching speed, long service life and nearly infinite switching times, and is in the magnitude of tens of microseconds. However, the insertion loss of the electronic switch is slightly larger than that of the electromagnetic relay switch, because the bandwidth and the high-frequency power of the high-power electronic switch are limited due to the influence of the parasitic parameters of the power supply bias circuit and the high-power device of the electronic switch tube.
Therefore, the switching speed directly determines that the electromagnetic relay switch can not meet the requirement of coping with the frequency modulation target. Although the electronic switch can meet the requirement of coping with the frequency modulation target in terms of switching time, the electronic switch has some defects in terms of working bandwidth and power capacity.
At present, the working bandwidth of a high-power electronic switch in a VHF/UHF frequency band is only two to three hundred megahertz, the power capacity of continuous waves is generally hundreds of watts, and the electromagnetic compatibility of a switch control circuit in high-power working is also a difficulty. In order to meet the requirement of a broadband high-power electronic countermeasure system, the development of an electronic transceiving switch with wider bandwidth and higher power becomes a key technology which is urgently needed to be solved in the current engineering application.
Disclosure of Invention
In view of the above, the present invention provides a high-power electronic transceiver switch circuit and a switch module, which can realize fast switching of the transceiver signals, and have the characteristics of wide operating frequency band, large power tolerance, fast switching speed, and high transceiver isolation.
In order to achieve the purpose, the invention adopts the technical scheme that:
a high-power electronic transceiving switch circuit comprises a radio frequency circuit and a control circuit, wherein the radio frequency circuit comprises a transmitting input end, a receiving output end and a public end which is used as the transmitting output end and the receiving input end, a transmitting path is arranged between the transmitting input end and the public end, and a receiving path is arranged between the receiving output end and the public end; the common end is grounded through an inductor, a first blocking capacitor, a second blocking capacitor and a first series diode group formed by connecting a plurality of diodes arranged in the forward direction in series are sequentially connected to the transmitting path from the transmitting input end to the common end, and a second series diode group formed by connecting a plurality of diodes arranged in the reverse direction in series, a third blocking capacitor, a fourth blocking capacitor and an amplitude limiting circuit are sequentially connected to the receiving path from the common end to the receiving output end in series; a first diode grounding branch is respectively connected between the first blocking capacitor and the second blocking capacitor and between the third blocking capacitor and the fourth blocking capacitor; the node of the first diode grounding branch in the transmitting path and the positive end of the second series diode group in the receiving path are respectively connected with a first power supply configuration circuit, and the node of the first diode grounding branch in the transmitting path and the node of the first diode grounding branch in the receiving path are respectively connected with a second power supply configuration circuit; the number of diodes of the first series diode group is not equal to that of the second series diode group;
the control circuit comprises a 12V power supply input end, a-400V power supply input end, a first power supply output end, a second power supply output end and a TTL level control end, wherein a switch triode is arranged between each power supply input end and each power supply output end, the first power supply output end is connected with the first power supply configuration circuit, and the second power supply output end is connected with the second power supply configuration circuit; and the TTL level control end is used for controlling the switching state of each switching triode.
Further, the number of diodes of the first series diode group is three, and the number of diodes of the second series diode group is two.
Furthermore, the first diode grounding branch is composed of two diodes connected in parallel, and the cathodes of the two diodes are grounded.
Furthermore, the amplitude limiting circuit comprises an inductance grounding branch and a second diode grounding branch, the second diode grounding branch is composed of two diodes which are connected in parallel, and the arrangement directions of the two diodes in the grounding branch are opposite.
Furthermore, the first power supply configuration circuit and the second power supply configuration circuit have the same structure, and comprise a parallel resistor group, a first inductor and a second inductor which are sequentially connected in series from one side of the control circuit to one side of the radio frequency circuit, wherein the parallel resistor group consists of two parallel resistors, two capacitor grounding branches are connected between the parallel resistor group and the first inductor, and two capacitor grounding branches are also connected between the first inductor and the second inductor.
Furthermore, the number of the switching triodes is four, and the switching triodes are respectively a first P-channel switching tube, a second P-channel switching tube, a first N-channel switching tube and a second N-channel switching tube; the control circuit also comprises a first multi-channel reverse driver, a second multi-channel reverse driver, a third multi-channel reverse driver and a fourth multi-channel reverse driver, wherein the input end of the first multi-channel reverse driver is connected with the TTL level control end, the input end of the second multi-channel reverse driver is connected with the forward output end of the first multi-channel reverse driver, the forward output end of the second multi-channel reverse driver is connected with the control end of the first N-channel switch tube through a voltage stabilizing circuit, the reverse output end of the second multi-channel reverse driver is connected with the control end of the first P-channel switch tube through a voltage stabilizing circuit, the forward output end of the third multi-channel reverse driver is connected with the control end of the second N; the first N-channel switching tube is arranged between the 12V power input end and the first power output end, the first P-channel switching tube is arranged between the-400V power input end and the first power output end, the second N-channel switching tube is arranged between the 12V power input end and the second power output end, and the second P-channel switching tube is arranged between the-400V power input end and the second power output end.
Furthermore, in the radio frequency circuit, the diodes in the first series diode group, the second series diode group and the first diode grounding branch are all high-power high-back-voltage PIN diodes, and the junction capacitance of the diode in the first series diode group is greater than that of the diode in the second series diode group.
Furthermore, the diodes in the second diode grounding branch are amplitude limiting diodes.
In addition, the invention also provides a high-power electronic transceiving switch module, which comprises a metal shell, a control circuit board and a radio frequency circuit board, wherein the bottom of the metal shell is provided with a heat dissipation base; the control circuit board is used for carrying the control circuit, and the radio frequency circuit board is used for carrying the radio frequency circuit; the interior of the metal shell is divided into an upper cavity and a lower cavity by a metal diaphragm plate, wherein the upper cavity is provided with a control circuit board, and the lower cavity is provided with a radio frequency circuit board; the middle part of the radio frequency circuit board is embedded with a ceramic plate, a high-power device in the radio frequency circuit is arranged on the ceramic plate, and the bottom of the ceramic plate is in contact with the metal shell so as to realize heat dissipation; the transmitting path part and the receiving path part in the radio frequency circuit are distributed on two sides of the radio frequency circuit board, and the lower cavity is also provided with a metal vertical partition plate so as to separate the transmitting path part from the receiving path part.
Furthermore, the ceramic plate is positioned in the middle of the radio frequency circuit board, one side of the ceramic plate is provided with a high-power device of the transmitting path part, and the other side of the ceramic plate is provided with a high-power device of the receiving path part.
Compared with the prior art, the invention has the following advantages:
1. the radio frequency circuit adopts an asymmetric switch circuit structure, reduces the influence of parasitic parameters of a high-power device on the radio frequency circuit, and has wider working bandwidth.
2. The control circuit has a voltage-stabilizing design, and the control signal is more stable and the electromagnetic compatibility is better when the control circuit works at high power.
3. The switch module adopts a multilayer structure with the separated cavities, different separated cavities have good electromagnetic isolation, and the high-power device is arranged on the ceramic plate, so that good heat dissipation can be realized.
Drawings
Fig. 1 is a schematic block diagram of a high power electronic transceiver switching circuit in an embodiment of the present invention.
Fig. 2 is a schematic diagram of the rf circuit of fig. 1.
Fig. 3 is a schematic diagram of the control circuit of fig. 1.
Fig. 4 is a schematic diagram of the power supply arrangement circuit of fig. 2.
Fig. 5 is a schematic structural diagram of a switch module in an embodiment of the invention.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, a high-power electronic transceiver switch circuit includes a radio frequency circuit and a control circuit, the radio frequency circuit includes a transmitting input terminal, a receiving output terminal and a common terminal serving as both the transmitting output terminal and the receiving input terminal, the control circuit includes a 12V power input terminal, a-400V power input terminal, a first power output terminal, a second power output terminal and a TTL level control terminal, and the control circuit supplies power to the radio frequency circuit through the first power output terminal and the second power output terminal.
Specifically, the structure of the radio frequency circuit is shown in fig. 2. The common terminal Tout/Rin of the radio frequency circuit is grounded through an inductor L1, a first blocking capacitor C1, a second blocking capacitor C2 and three forward diodes V3, V4 and V5 are sequentially connected in series on a transmitting branch of the radio frequency circuit from a transmitting input terminal Tin to the common terminal Tout/Rin, and two reverse diodes V6, V7, a third blocking capacitor C3, a fourth blocking capacitor C4 and an amplitude limiting circuit are sequentially connected in series on a receiving branch from the common terminal Tout/Rin to a receiving output terminal Rout; the limiter circuit comprises a branch grounded through an inductor L2 and a diode grounding branch, wherein the diode grounding branch consists of two parallel diodes V10 and V11, and the arrangement directions of the two diodes in the grounding branch are opposite.
A diode grounding branch is connected between the first blocking capacitor C1 and the second blocking capacitor C2, the diode grounding branch consists of two diodes V1 and V2 which are connected in parallel, and the cathodes of the two diodes are grounded; a diode grounding branch is also connected between the third dc blocking capacitor C3 and the fourth dc blocking capacitor C4, the diode grounding branch is composed of two parallel diodes V8 and V9, and the cathodes of the two diodes are grounded.
The side of the second dc blocking capacitor C2 away from the common terminal Tout/Rin and the side of the third dc blocking capacitor C3 close to the common terminal Tout/Rin are respectively connected with a first power supply configuration circuit, the control end (i.e. the input end) of which is Ctr1, the side of the second dc blocking capacitor C2 close to the common terminal Tout/Rin and the side of the third dc blocking capacitor C3 away from the common terminal Tout/Rin are respectively connected with a second power supply configuration circuit, the control end (i.e. the input end) of which is Ctr 2.
The first power supply configuration circuit and the second power supply configuration circuit have the same structure, and the structure is shown in fig. 4. From an input end in (i.e. a side of the control circuit, corresponding to Ctr1 and Ctr2 in fig. 2) to an output end out (i.e. a side of the radio frequency circuit), the power supply configuration circuit comprises a parallel resistor group, a first inductor L3 and a second inductor L4 which are sequentially connected in series, the parallel resistor group comprises two parallel resistors R1 and R2, two capacitor grounding branches are connected between the parallel resistor group and the first inductor, the two branches are grounded through capacitors C5 and C6 respectively, the two capacitor grounding branches are also connected between the first inductor and the second inductor, and the two branches are grounded through capacitors C7 and C8 respectively.
As shown in fig. 3, the control circuit includes a first P-channel switch transistor 28, a second P-channel switch transistor 30, a first N-channel switch transistor 27, a second N-channel switch transistor 29, and first to third multi-channel inversion drivers 20, 21, and 22, and further includes a 12V power input terminal, a-400V power input terminal, a first power output terminal, a second power output terminal, and a TTL level control terminal.
The first power output end is connected with the control end Ctr1 of the first power supply configuration circuit, the second power output end is connected with the control end Ctr2 of the second power supply configuration circuit, the input end of the first multi-path reverse driver 20 is connected with the TTL level control end, the input end of the second multi-path reverse driver 21 is connected with the forward output end of the first multi-path reverse driver 20, the input end of the third multi-path reverse driver 22 is connected with the reverse output end of the first multi-path reverse driver 20, the forward output end of the second multi-path reverse driver 21 is connected with the control end of the first N-channel switch tube 27 through a voltage stabilizing circuit 23, the reverse output end of the second multi-path reverse driver 21 is connected with the control end of the first P-channel switch tube 28 through a voltage stabilizing circuit 24, the forward output end of the third multi-path reverse driver 22 is connected with the control end of the second N-channel switch tube 29 through a voltage, the inverting output terminal of the third multi-channel inverting driver 22 is connected to the control terminal of the second P-channel switch tube 30 through a voltage stabilizing circuit 26; the first N-channel switch tube 27 is arranged between the 12V power input end and the first power output end, the first P-channel switch tube 28 is arranged between the-400V power input end and the first power output end, the second N-channel switch tube 29 is arranged between the 12V power input end and the second power output end, and the second P-channel switch tube 30 is arranged between the-400V power input end and the second power output end.
In the radio frequency circuit of the switch, a blocking capacitor uses a high-Q-value and high-power chip ceramic dielectric capacitor, two groups of diodes connected in series form an asymmetric circuit structure, and parasitic parameters of a high-power device can be reduced, so that the bandwidth is expanded, and the transmitting-receiving isolation is improved; the parallel grounding diode is also designed to improve the isolation of transmitting and receiving. During assembly, the blocking capacitor and the series diode need to be insulated to the ground, and are welded to the silver-plated pure copper plate through the beryllium oxide ceramic plate with high heat conductivity in a transition mode, so that the dual purposes of insulation to the ground and good heat dissipation are achieved.
The radio frequency circuit adopts an asymmetric switch circuit structure, and a high-power high-back-voltage PIN diode with large junction capacitance is used in a transmitting path, so that the insertion loss of the transmitting path can be reduced; the receiving path uses a high-power high-back-voltage PIN diode with smaller junction capacitance, so that the influence of parasitic parameters of a high-power device on high-frequency performance can be reduced, and the working bandwidth is expanded. The blocking capacitor and the access PIN diode are sequentially welded on beryllium oxide ceramic and silver-plated pure copper plates with excellent heat conductivity by using tin wires, the grounded PIN diode is directly welded on the silver-plated pure copper plates by using the tin wires, and a high-power choke coil in the power supply bias circuit is wound by using gold-plated pure copper wires with the diameter of 2mm, so that the heat dissipation problem of a core high-power device is solved.
In the control circuit, three multipath reverse drivers are divided into two stages, so that one path of control signal is divided into four paths of control signals with logic; the voltage stabilizing circuit can adopt a voltage stabilizing circuit consisting of a power supply capacitor filter circuit, a resistor and a voltage stabilizing diode, and the circuit is common knowledge of persons skilled in the art and is not described herein again; the switching triode adopts high-voltage field effect transistors with an N channel and a P channel, and in order to keep voltage margin, the field effect transistor with the withstand voltage of 500V can be selected, so that the requirements of positive voltage and negative high voltage are met.
Specifically, the control circuit can adopt 5V TTL signal control, one path of control signal is divided into four paths of control signals with logic through three multipath reverse drivers 20, 21 and 22, and the four paths of control signals pass through voltage stabilizing circuits 23, 24, 25 and 26 to respectively control four high-voltage field effect transistors 27, 28, 29 and 30, so that the switching of output positive voltage and negative high voltage is controlled, and the switching work of a transmitting-receiving switch is realized by controlling the bias power supply of a high-power PIN diode.
The working principle of the switch is as follows:
when the TTL control signal in the control circuit is at a low level, the output of the Ctr1 is a negative high voltage, the output of the Ctr2 is a positive voltage, the first power supply configuration circuit controls the PIN diode connected with the first power supply configuration circuit to be cut off, the second power supply configuration circuit controls the PIN diode connected with the second power supply configuration circuit to be conducted, and at the moment, the transceiving switch is in a transmitting channel conducting state. On the contrary, when the TTL control signal in the control circuit is at a high level, the Ctr1 output is a positive voltage, the Ctr2 output is a negative high voltage, the first power supply configuration circuit controls the PIN diode connected thereto to be turned on, the second power supply configuration circuit controls the PIN diode connected thereto to be turned off, and at this time, the transceiver switch is in a receiving path on state.
The invention has 400MHz working bandwidth, can meet the requirement of the system broadband work; the continuous wave generator can bear 2000W high-power continuous waves and meet the working requirements of a high-power transmitter of a system; the system has a rapid receiving and transmitting switching speed of dozens of microseconds, so that the system can track and process a frequency hopping communication target; the receiving end has the amplitude limiting function, and can effectively protect the receiving front-end equipment from being damaged during normal work and abnormal conditions.
In a word, the radio frequency circuit is manufactured based on the high-power high-back-voltage PIN diode, and the broadband, high-power and quick switching characteristics of the receiving and transmitting switch can be realized. The radio frequency circuit adopts an asymmetric switch circuit structure according to the characteristics of different transmitting and receiving signal powers, and the influence of parasitic parameters of a high-power device on high-frequency performance can be reduced by using two high-power high-back-voltage PIN diodes with different performance parameters, so that the working bandwidth of the electronic switch is further expanded.
The control circuit is realized based on a circuit inverting driver and a high-voltage field effect transistor, can be controlled through a TTL level signal, and provides a high-voltage signal with logic and rapid switching, so that the high-power PIN diode is controlled to work. In addition, the control circuit is also provided with a voltage stabilizing circuit, so that stable positive voltage and negative high voltage bias power supply can be provided for the radio frequency circuit of the receiving and transmitting switch, and the control signal is not influenced by electromagnetic interference under the high-power working condition.
As shown in fig. 5, a high-power electronic transceiver switch module includes a metal casing composed of a cover plate 38, a side plate 35, and a silver-plated pure copper plate 32, wherein the metal casing is divided into an upper compartment and a lower compartment by an upper partition plate 36, and the lower compartment is divided into a left compartment and a right compartment by a vertical partition plate 37. The radio frequency circuit board 33 carries a radio frequency circuit and is arranged in the lower separation cavity; a control circuit board 39 carries control circuitry and is located in the upper compartment. The middle part of the radio frequency circuit board 33 is also embedded with a ceramic plate 34, and the bottom of the silver-plated pure copper plate 32 is also provided with a heat dissipation base 31 with heat dissipation fins.
The ceramic plate and the radio frequency circuit board are welded on the silver-plated pure copper plate firstly, then the device is assembled electrically, the device is assembled on the heat dissipation base in a screwed mode after the electrical assembly is completed, and then the side plate, the vertical partition plate, the upper partition plate, the control circuit board and the cover plate are assembled in sequence.
In the module, a ceramic plate is positioned in the middle of a radio frequency circuit board, one side of the ceramic plate is provided with a high-power device of a transmitting path part, the other side of the ceramic plate is provided with a high-power device of a receiving path part, and a vertical partition plate is pressed on the radio frequency circuit board to realize good isolation of the transmitting path part and the receiving path part.
The module adopts a multilayer module structure with a separation cavity, can realize good receiving and transmitting isolation, has good heat dissipation of a core high-power device, can improve the power capacity of the core high-power device, and enables a receiving and transmitting switch to bear 2000W continuous wave power. The module has reasonable layout and compact structure, and is beneficial to realizing the miniaturization of the module.
In a word, the ceramic plate of the module can solve the heat dissipation problem of a core high-power device, so that the power capacity of the electronic switch is improved. The module realizes good electromagnetic shielding effect through the separate cavity, can improve the electromagnetic compatibility of the receiving and transmitting isolation degree and the control circuit, improves the receiving and transmitting isolation degree, and reduces the influence on receiving equipment during signal transmission. In addition, by adding the amplitude limiting circuit in the radio frequency circuit, the receiving end equipment can be protected from being damaged under the abnormal condition.
Claims (10)
1. A high-power electronic transceiving switch circuit comprises a radio frequency circuit and a control circuit, and is characterized in that the radio frequency circuit comprises a transmitting input end, a receiving output end and a common end which is used as the transmitting output end and the receiving input end, a transmitting path is arranged between the transmitting input end and the common end, and a receiving path is arranged between the receiving output end and the common end; the common end is grounded through an inductor, a first blocking capacitor, a second blocking capacitor and a first series diode group formed by connecting a plurality of diodes arranged in the forward direction in series are sequentially connected to the transmitting path from the transmitting input end to the common end, and a second series diode group formed by connecting a plurality of diodes arranged in the reverse direction in series, a third blocking capacitor, a fourth blocking capacitor and an amplitude limiting circuit are sequentially connected to the receiving path from the common end to the receiving output end in series; a first diode grounding branch is respectively connected between the first blocking capacitor and the second blocking capacitor and between the third blocking capacitor and the fourth blocking capacitor; the node of the first diode grounding branch in the transmitting path and the positive end of the second series diode group in the receiving path are respectively connected with a first power supply configuration circuit, and the node of the first diode grounding branch in the transmitting path and the node of the first diode grounding branch in the receiving path are respectively connected with a second power supply configuration circuit; the number of diodes of the first series diode group is not equal to that of the second series diode group;
the control circuit comprises a 12V power supply input end, a-400V power supply input end, a first power supply output end, a second power supply output end and a TTL level control end, wherein a switch triode is arranged between each power supply input end and each power supply output end, the first power supply output end is connected with the first power supply configuration circuit, and the second power supply output end is connected with the second power supply configuration circuit; and the TTL level control end is used for controlling the switching state of each switching triode.
2. A high power electronic transceiver circuit according to claim 1, wherein the number of diodes of said first series diode group is three, and the number of diodes of said second series diode group is two.
3. A high power electronic transceiving switch circuit according to claim 1, wherein the first diode grounding branch comprises two diodes connected in parallel, and the cathodes of the two diodes are grounded.
4. A high power electronic transceiver circuit according to claim 1, wherein said limiter circuit comprises an inductor ground branch and a second diode ground branch, the second diode ground branch is composed of two parallel diodes, and the two diodes are disposed in opposite directions in the ground branches.
5. A high power electronic transceiving switch circuit according to claim 1, wherein the first power supply configuration circuit and the second power supply configuration circuit have the same structure, and comprise a parallel resistor group, a first inductor and a second inductor connected in series in sequence from the control circuit side to the radio frequency circuit side, wherein the parallel resistor group comprises two parallel resistors, two capacitor grounding branches are connected between the parallel resistor group and the first inductor, and two capacitor grounding branches are connected between the first inductor and the second inductor.
6. The high-power electronic transceiving switch circuit according to claim 1, wherein the number of the switching transistors is four, and the switching transistors are respectively a first P-channel switching tube, a second P-channel switching tube and a first N-channel switching tube; the control circuit also comprises a first multi-channel reverse driver, a second multi-channel reverse driver, a third multi-channel reverse driver and a fourth multi-channel reverse driver, wherein the input end of the first multi-channel reverse driver is connected with the TTL level control end, the input end of the second multi-channel reverse driver is connected with the forward output end of the first multi-channel reverse driver, the forward output end of the second multi-channel reverse driver is connected with the control end of the first N-channel switch tube through a voltage stabilizing circuit, the reverse output end of the second multi-channel reverse driver is connected with the control end of the first P-channel switch tube through a voltage stabilizing circuit, the forward output end of the third multi-channel reverse driver is connected with the control end of the second N; the first N-channel switching tube is arranged between the 12V power input end and the first power output end, the first P-channel switching tube is arranged between the-400V power input end and the first power output end, the second N-channel switching tube is arranged between the 12V power input end and the second power output end, and the second P-channel switching tube is arranged between the-400V power input end and the second power output end.
7. A high power electronic transceiver switch circuit according to claim 1, wherein the diodes in the first series diode group, the second series diode group and the first diode grounding branch in the rf circuit are high power high back voltage PIN diodes, and the junction capacitance of the diodes in the first series diode group is larger than the junction capacitance of the diodes in the second series diode group.
8. A high power electronic transceiver circuit according to claim 4, wherein the diodes in the second diode ground branch are clipping diodes.
9. A high-power electronic transceiving switch module comprises a metal shell, a control circuit board and a radio frequency circuit board, wherein a heat dissipation base is arranged at the bottom of the metal shell; the control circuit board is used for carrying the control circuit as claimed in any one of claims 1 to 8, and the radio frequency circuit board is used for carrying the radio frequency circuit as claimed in any one of claims 1 to 8; the interior of the metal shell is divided into an upper cavity and a lower cavity by a metal diaphragm plate, wherein the upper cavity is provided with a control circuit board, and the lower cavity is provided with a radio frequency circuit board; the middle part of the radio frequency circuit board is embedded with a ceramic plate, a high-power device in the radio frequency circuit is arranged on the ceramic plate, and the bottom of the ceramic plate is in contact with the metal shell so as to realize heat dissipation; the transmitting path part and the receiving path part in the radio frequency circuit are distributed on two sides of the radio frequency circuit board, and the lower cavity is also provided with a metal vertical partition plate so as to separate the transmitting path part from the receiving path part.
10. The high power electronic transceiver switch module as claimed in claim 9, wherein the ceramic board is located at the middle of the rf circuit board, and one side of the ceramic board is provided with the high power device of the transmitting path portion and the other side of the ceramic board is provided with the high power device of the receiving path portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110321672.2A CN113114182A (en) | 2021-03-25 | 2021-03-25 | High-power electronic transceiving switch circuit and switch module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110321672.2A CN113114182A (en) | 2021-03-25 | 2021-03-25 | High-power electronic transceiving switch circuit and switch module |
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| CN113114182A true CN113114182A (en) | 2021-07-13 |
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| CN202110321672.2A Pending CN113114182A (en) | 2021-03-25 | 2021-03-25 | High-power electronic transceiving switch circuit and switch module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117526992A (en) * | 2024-01-04 | 2024-02-06 | 中科海高(成都)电子技术有限公司 | Radio frequency receiving and transmitting circuit, radio frequency front-end module and electronic equipment |
-
2021
- 2021-03-25 CN CN202110321672.2A patent/CN113114182A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117526992A (en) * | 2024-01-04 | 2024-02-06 | 中科海高(成都)电子技术有限公司 | Radio frequency receiving and transmitting circuit, radio frequency front-end module and electronic equipment |
| CN117526992B (en) * | 2024-01-04 | 2024-03-22 | 中科海高(成都)电子技术有限公司 | Radio frequency receiving and transmitting circuit, radio frequency front-end module and electronic equipment |
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Inventor after: Liu Zhanwei Inventor after: Wei Lihao Inventor after: Wang Zhigang Inventor after: Chen Xiaobing Inventor after: Bai Chunhui Inventor after: Chen Jing Inventor before: Liu Zhanwei Inventor before: Wei Lihao Inventor before: Wang Zhigang Inventor before: Chen Xiaobing |