CN113611990A - PIN tube microwave switch module - Google Patents
PIN tube microwave switch module Download PDFInfo
- Publication number
- CN113611990A CN113611990A CN202110684345.3A CN202110684345A CN113611990A CN 113611990 A CN113611990 A CN 113611990A CN 202110684345 A CN202110684345 A CN 202110684345A CN 113611990 A CN113611990 A CN 113611990A
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- Prior art keywords
- radio frequency
- switch circuit
- circuit board
- switch module
- insulator
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/10—Auxiliary devices for switching or interrupting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/10—Auxiliary devices for switching or interrupting
- H01P1/15—Auxiliary devices for switching or interrupting by semiconductor devices
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- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The invention discloses a PIN tube microwave switch module, which comprises a shell with an inner cavity and a switch circuit board accommodated and fixed in the inner cavity of the shell, wherein the switch circuit board comprises: be the straight portion that the level was arranged to and be the slant portion that the slant was arranged, switch module is including being located radio frequency insulator subassembly on the casing lateral wall, radio frequency insulator subassembly including at least with a plurality of first radio frequency insulators that the cubical switchboard slant portion corresponds, the one end of first radio frequency insulator with the cubical switchboard is connected, and the other end by the casing lateral wall exposes, and is a plurality of connecting wire between the first radio frequency insulator center with the projection coincidence of slant portion on the casing lateral wall. The invention solves the problems of complex process and large loss caused by PIN diode microwave switch modules with signal ports at different heights. The structure has simple process, low loss, compact structure and small volume, and can be used for engineering.
Description
Technical Field
The invention relates to the technical field of microwave control, in particular to a PIN tube microwave switch module.
Background
In wireless communication, radar, electronic countermeasure systems, etc., a transmitter transmits a radio signal and a receiver receives the radio signal. Due to the special structure of the microwave switch of the PIN diode, the microwave switch is widely applied to systems such as phased array radar, microwave communication, electronic countermeasure and the like, and can realize functions such as conversion of transmitting and receiving signals, selection of polarization and the like.
The microwave switch module is connected with the antenna unit through the radio frequency cable in the traditional radar antenna feed system, and the occupied space is large, so the current antenna feed system adopts a more compact design mode in order to save space, namely the radio frequency cable connection is abandoned, and the microwave switch module and the antenna unit are directly inserted, and in order to match the port interval of the antenna unit, the microwave switch module generally presents 3 signal ports in structural design, and is respectively positioned at 3 different heights relative to the installation surface, so that the direct insertion with the antenna unit is realized.
In order to meet the requirements of different heights of signal ports of microwave switch modules, the traditional solution is that when the vertical distance of the signal ports is small (less than 1mm), the signal ports can be directly connected in a bridging manner through gold wires or gold tapes, or a multilayer board design is adopted, the signal ports are translated through interlayer vertical interconnection, and when the vertical distance of the signal ports is large (more than 1.5mm), the signal ports are generally translated through the vertical interconnection technology of insulators or fuzz buttons. However, the interconnection method has the disadvantages of large loss, complex process assembly, high cost and the like, and is particularly embodied in that the discontinuity of a signal transmission path causes extra loss, and the complex process assembly causes loss increase and cost increase.
Therefore, a new PIN tube microwave switch module needs to be designed to solve the above technical problems caused by different heights of the signal ports.
Disclosure of Invention
The invention aims to provide a PIN microwave switch module, which solves the problems of complex process assembly, high loss and high cost of the PIN microwave switch module when the signal ports are at different heights at present.
In order to achieve the above object, the present invention provides a PIN tube microwave switch module, including a housing having an inner cavity, and a switch circuit board accommodated and fixed in the inner cavity of the housing, wherein the switch circuit board includes: be the straight portion that the level was arranged to and be the slant portion that the slant was arranged, switch module is including being located radio frequency insulator subassembly on the casing lateral wall, radio frequency insulator subassembly including at least with a plurality of first radio frequency insulators that the cubical switchboard slant portion corresponds, the one end of first radio frequency insulator with the cubical switchboard is connected, and the other end by the casing lateral wall exposes, and is a plurality of connecting wire between the first radio frequency insulator center with the projection coincidence of slant portion on the casing lateral wall.
In a preferred embodiment, the rf insulator assembly further includes a second rf insulator corresponding to the flat portion of the switch circuit board, one end of the second rf insulator is connected to the switch circuit board, and the other end is exposed from the side wall of the housing.
In a preferred embodiment, the first radio frequency insulator and the second radio frequency insulator are respectively located on two opposite side walls of the housing.
In a preferred embodiment, the housing lumen includes therein: the first bearing surface is used for assembling and fixing the straight portion, and the second bearing surface is used for assembling and fixing the oblique portion.
In a preferred embodiment, the switch module includes a driver received and fixed in the inner cavity of the housing, the driver is electrically connected to the switch circuit board, and the housing includes a table top for mounting and fixing the driver.
In a preferred embodiment, the switch module further includes a feeding insulator located on the side wall of the housing, one end of the feeding insulator passes through the side wall of the housing to be connected to the driver, and the other end of the feeding insulator is exposed from the side wall of the housing.
In a preferred embodiment, the housing comprises a middle shell with both upper and lower ends open, an upper shell in a flat plate structure covering and fixed at the opening at the upper end of the middle shell, and a lower shell covering and fixed at the opening at the lower end of the middle shell.
In a preferred embodiment, the switch circuit board is a flexible dielectric board, and the oblique portion of the switch circuit board is bent upward.
In a preferred embodiment, the housing cavity and the housing side walls are gold plated.
In the technical scheme of the invention, PIN tube microwave switches are brazed on the first bearing surface and the second bearing surface of the inner cavity of the shell, the position translation of two signal ports on one side is solved in an inclined surface assembly mode, the height position translation of the signal port on the other side is solved in an inclined surface plane-turning mode, the translation of the signal ports at different height positions is finally realized, the continuity of a microwave signal transmission path is ensured, when the signal ports are at different heights, the signals can be in non-bridging connection in the above mode, and the loss of the connection is reduced.
The invention has the following beneficial effects:
according to the PIN tube microwave switch module, the switch circuit board is brazed on the first bearing surface and the second bearing surface in the shell, the position translation of the two signal ports on one side is solved in an inclined surface assembly mode, the height position translation of the signal port on the other side is solved in an inclined surface plane-turning mode, microwave signals are transmitted on the inclined part and the straight part of the switch circuit board, the translation of the signal ports at different heights is realized, the continuity of the microwave signals on a transmission path is ensured, the structure realizes no-bridging connection, and the PIN tube microwave switch module is simple in process, low in loss, compact in structure, small in size and high in reliability and can be used for engineering.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 shows an exploded view of a PIN tube microwave switch module according to the present invention.
FIG. 2 shows a driver diagram
FIG. 3 shows an internal view of a PIN microwave switch module according to the present invention, wherein FIG. 3a is a rear view, FIG. 3b is a bottom view, FIG. 3c is a front view, and FIG. 3d is a top view
FIG. 4 is an external configuration diagram of a PIN microwave switch module according to the present invention, in which FIG. 4a is a rear view, FIG. 4b is a bottom view, FIG. 4c is a front view, and FIG. 4d is a top view
The reference signs are: 1 casing, 2 switch circuit boards, 3 switch circuit boards, 4 drivers, 5 first radio frequency insulators, 6 second radio frequency insulators, 7 feed insulators, 8 upper casings and 9 lower casings
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
The radio frequency insulator and the feed insulator are fixed on corresponding ports in an air-tight welding mode, one end of the radio frequency insulator in the shell is connected with the switch circuit board in a bonding mode, and the other end of the radio frequency insulator is exposed out of the side wall of the shell and is connected with a component to be adapted through bonding, welding or an adaptive connector.
The side wall of the whole shell and the inner cavity of the shell are plated with gold, and the middle part of the inner cavity of the shell is milled empty.
The driver is fixedly connected to a fixing table in the middle of the shell through screws, the input end of the driver is connected with one end of a feed insulator on the side wall of the shell, and the output end of the driver is electrically connected with the switch circuit board and used for controlling the operation of the PIN microwave switch module.
The two switch circuit boards can be arranged symmetrically or asymmetrically, and the position relationship of the two switch circuit boards is determined according to the actual design requirement.
The flexible dielectric plate is adopted in the invention, so that the oblique part of the switch circuit board can be obtained in a mode of bending upwards in partial area of the purchased dielectric plate, the dielectric plate is completely attached to the first bearing surface and the second bearing surface in the inner cavity of the shell, the dielectric plate is further fixed in a brazing mode, and a gap is reserved at the joint of the oblique part and the straight part of the flexible dielectric plate.
The first bearing surface and the second bearing surface are fixed in the inner cavity of the shell through numerical control milling, and an included angle between the second bearing surface and the side surface of the fixed side is an obtuse angle so as to ensure the mechanical machinability of the shell and the subsequent electrical assembly with the switch circuit.
According to the invention, through a brazing mode, the connection of fixing pieces such as screws and the like in the traditional technology is omitted, the integrity of the flexible medium plate is ensured, and the insertion loss is reduced.
The invention provides a PIN tube microwave switch module as shown in figure 1, which comprises a shell 1 with an inner cavity, and two switch circuit boards accommodated and fixed in the inner cavity of the shell 1, wherein the two switch circuit boards 2 and 3 are arranged in central symmetry relative to the center of the shell 1, and the switch circuit boards 2 and 3 comprise: be the straight portion of horizontal arrangement to and be the slant portion that the slant was arranged, switch module is including being located the radio frequency insulator subassembly on the 1 lateral wall of casing, the radio frequency insulator subassembly at least including with a plurality of first radio frequency insulators that the cubical switchboard slant portion corresponds, the radio frequency insulator subassembly still include with the second radio frequency insulator that the straight portion of cubical switchboard corresponds, the one end of first radio frequency insulator respectively with correspond the cubical switchboard 2 and 3 bonding connection, the other end is exposed by the 1 lateral wall of casing, a plurality of the line between the first radio frequency insulator center with the projection coincidence of slant portion on the 1 lateral wall of casing, the one end of second radio frequency insulator with the cubical switchboard 2 and 3 are connected, the other end is exposed by the 1 lateral wall of casing and is linked to each other with the antenna unit bonding of treating the adaptation, switch circuit board 2 and 3 bend into the ascending slant portion in one side under the exogenic action, and the straight portion of switch circuit board brazes fixedly on first loading face, and switch circuit board slant portion brazes fixedly on the second loading face, including being used for the assembly to fix in the casing 1 inner chamber the mesa of driver 4, the output of driver 4 links to each other with switch circuit board 2 and the bonding of switch circuit board 3 respectively, and the one end of feed insulator 6 is passed casing 1 lateral wall with driver 4 is connected, and the other end is exposed by casing 1 lateral wall, casing 1 includes that upper and lower both ends are open mesochite, covers and is fixed in mesochite upper end opening department be flat structure epitheca 7 to and cover and be fixed in mesochite lower extreme opening department's inferior valve 8, casing 1 inner chamber and casing 1 lateral wall carry out the gilding processing, and first loading face and second loading face are fixed in casing 1 inner chamber through numerical control milling, the second bearing surface forms an obtuse angle with the side surface of the fixed side, so that the mechanical processability of the shell 1 and the subsequent electrical assembly with the switch circuit board are ensured.
In operation, the power supply signal and the control signal are supplied to the driver via the feed insulator 7 on the hole X7, and are used by the driver 4 to realize the path selection of the switch circuit board 2 and the switch circuit board 3. When the control signal is +5V, the first radio frequency insulator with the hole X1 at the input end of the switch circuit board 2 is in a conducting state to the second radio frequency insulator with the hole X5 at the output end, the first radio frequency insulator with the hole X2 at the input end is in an isolating state to the second radio frequency insulator with the hole X5 at the output end, the microwave signal is transmitted to the oblique part of the switch circuit board 2 through the first radio frequency insulator with the hole X1, then transmitted to the straight part of the switch circuit board 2 through the oblique part of the switch circuit board 2, and then transmitted to the second radio frequency insulator on the hole X5 through the straight part of the switch circuit board 2 to output the signal; when the control signal is 0V, the first rf insulator with the hole X2 at the input end of the switch circuit board 2 is in a conducting state to the second rf insulator with the hole X5 at the output end, the first rf insulator with the hole X1 at the input end is in an isolating state to the second rf insulator with the hole X5 at the output end, the microwave signal is transmitted to the oblique portion of the switch circuit board 2 through the first rf insulator with the hole X2, then transmitted to the straight portion of the switch circuit board 2 through the oblique portion of the switch circuit board 2, and then transmitted to the second rf insulator on the hole X5 through the straight portion of the switch circuit board 2 to output the signal. Thereby realize the microwave signal transmission when PIN pipe microwave switch module's signal port is in the not co-altitude position translation, perhaps when the second radio frequency insulator on hole X5 is as the input, microwave signal passes through the straight portion that second radio frequency insulator reaches switch circuit board 2, the straight portion that reaches switch circuit board 2 by switch circuit board 2 again passes to the slant portion of switch circuit board 2, the slant portion that reaches by switch circuit board 2 again carries out the output of signal to the first radio frequency insulator on hole X1 or X2, realize input signal transmission's effect.
Similarly, when the control signal is +5V, the first radio frequency insulator with the hole X3 at the input end of the switch circuit board 3 is in a conducting state to the second radio frequency insulator with the hole X3 at the output end, the first radio frequency insulator with the hole X4 at the input end is in an isolating state to the second radio frequency insulator with the hole X6 at the output end, the microwave signal is transmitted to the oblique portion of the switch circuit board 3 through the first radio frequency insulator with the hole X3, then transmitted to the straight portion of the switch circuit board 3 through the oblique portion of the switch circuit board 3, and then transmitted to the second radio frequency insulator on the hole X6 through the straight portion of the switch circuit board 3 to output the signal; when the control signal is 0V, the first rf insulator with the hole X4 at the input end of the switch circuit board 3 is in a conducting state to the second rf insulator with the hole X6 at the output end, the first rf insulator with the hole X3 at the input end is in an isolating state to the second rf insulator with the hole X6 at the output end, the microwave signal is transmitted to the oblique portion of the switch circuit board 3 through the first rf insulator with the hole X4, then transmitted to the straight portion of the switch circuit board 3 through the oblique portion of the switch circuit board 3, and then transmitted to the second rf insulator on the hole X6 through the straight portion of the switch circuit board 3 to output the signal. Thereby realize the microwave signal transmission when PIN pipe microwave switch module's signal port is in the not co-altitude position translation, perhaps when the second radio frequency insulator on hole X6 was as the input, microwave signal passed through the straight portion that second radio frequency insulator reaches switch circuit board 3, the straight portion that reaches switch circuit board 3 by switch circuit board 3 again reaches the slant portion of switch circuit board 3, the slant portion that reaches by switch circuit board 6 again carries out the output of signal to the first radio frequency insulator on hole X3 or X4, realize input signal transmission's effect.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (10)
1. A PIN tube microwave switch module is characterized by comprising
A housing having an interior cavity; and
the switch circuit board is accommodated and fixed in the inner cavity of the shell;
the switch circuit board includes: a flat portion arranged horizontally; and
an oblique portion arranged obliquely;
the switch module comprises a radio frequency insulator assembly positioned on the side wall of the shell;
the radio frequency insulator assembly at least comprises a plurality of first radio frequency insulators corresponding to the inclined part of the switch circuit board; one end of the first radio frequency insulator is connected with the switch circuit board, and the other end of the first radio frequency insulator is exposed out of the side wall of the shell;
and connecting lines among the centers of the plurality of first radio frequency insulators are superposed with the projection of the inclined part on the side wall of the shell.
2. The PIN tube microwave switch module of claim 1, wherein the radio frequency insulator subassembly further comprises a second radio frequency insulator corresponding to the switch circuit board flat portion;
one end of the second radio frequency insulator is connected with the switch circuit board, and the other end of the second radio frequency insulator is exposed out of the side wall of the shell.
3. The PIN tube microwave switch module of claim 2, wherein the first radio frequency insulator and the second radio frequency insulator are located on two opposite sidewalls of the housing, respectively.
4. The PIN tube microwave switch module of claim 1, wherein the housing interior cavity includes therein: the first bearing surface is used for assembling and fixing the straight part; and
and the second bearing surface is used for assembling and fixing the oblique part.
5. The PIN tube microwave switch module according to claim 1, wherein the switch module includes a driver received and fixed in the inner cavity of the housing, the driver being electrically connected to the switch circuit board;
the shell comprises a table top for assembling and fixing the driver.
6. The PIN microwave switch module of claim 5 further comprising a feed insulator on the side wall of the housing; one end of the feed insulator penetrates through the side wall of the shell to be connected with the driver, and the other end of the feed insulator is exposed out of the side wall of the shell.
7. The PIN microwave switch module of claim 5 wherein the switch module comprises two switch circuit boards received and secured within the housing interior;
the two switch circuit boards are arranged in central symmetry relative to the center of the shell.
8. The PIN microwave switch module according to claim 1, wherein the housing comprises a middle case having an upper end and a lower end that are open, an upper case having a plate-shaped structure covering and fixed to an opening at an upper end of the middle case, and a lower case covering and fixed to an opening at a lower end of the middle case.
9. The PIN microwave switch module according to claim 1, wherein the switch circuit board is a flexible dielectric board, and the slant portion of the switch circuit board is bent upward.
10. The PIN tube microwave switch module of claim 1 wherein the housing interior and housing sidewalls are gold plated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110684345.3A CN113611990B (en) | 2021-06-21 | 2021-06-21 | PIN tube microwave switch module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110684345.3A CN113611990B (en) | 2021-06-21 | 2021-06-21 | PIN tube microwave switch module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113611990A true CN113611990A (en) | 2021-11-05 |
| CN113611990B CN113611990B (en) | 2022-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110684345.3A Active CN113611990B (en) | 2021-06-21 | 2021-06-21 | PIN tube microwave switch module |
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| Country | Link |
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| CN (1) | CN113611990B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4222624A (en) * | 1979-03-02 | 1980-09-16 | Midway Mfg. Co. | Interface wafer for printed circuit board |
| CN106374862A (en) * | 2016-08-31 | 2017-02-01 | 安徽华东光电技术研究所 | Microwave four-channel amplifier module and manufacturing method thereof |
| CN109586027A (en) * | 2017-09-28 | 2019-04-05 | 泰连德国有限公司 | Low-loss plug-in connection device and system with this plug-in connection device |
| CN109687058A (en) * | 2018-12-25 | 2019-04-26 | 上海思彼安德智能系统有限公司 | The airtight grade microwave switch module structure of Ka full frequency band |
| CN210324971U (en) * | 2019-10-29 | 2020-04-14 | 京东方科技集团股份有限公司 | Flexible circuit board and display device |
| CN211605629U (en) * | 2020-04-07 | 2020-09-29 | 江苏迈库通信科技有限公司 | Audio connector device for detecting automatic connector plugboard |
| CN111752809A (en) * | 2020-07-02 | 2020-10-09 | 中国工商银行股份有限公司 | Circuit board and cabinet |
| CN212062912U (en) * | 2020-05-06 | 2020-12-01 | 中山市汉仁电子有限公司 | Connector with optimized structure |
-
2021
- 2021-06-21 CN CN202110684345.3A patent/CN113611990B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4222624A (en) * | 1979-03-02 | 1980-09-16 | Midway Mfg. Co. | Interface wafer for printed circuit board |
| CN106374862A (en) * | 2016-08-31 | 2017-02-01 | 安徽华东光电技术研究所 | Microwave four-channel amplifier module and manufacturing method thereof |
| CN109586027A (en) * | 2017-09-28 | 2019-04-05 | 泰连德国有限公司 | Low-loss plug-in connection device and system with this plug-in connection device |
| CN109687058A (en) * | 2018-12-25 | 2019-04-26 | 上海思彼安德智能系统有限公司 | The airtight grade microwave switch module structure of Ka full frequency band |
| CN210324971U (en) * | 2019-10-29 | 2020-04-14 | 京东方科技集团股份有限公司 | Flexible circuit board and display device |
| CN211605629U (en) * | 2020-04-07 | 2020-09-29 | 江苏迈库通信科技有限公司 | Audio connector device for detecting automatic connector plugboard |
| CN212062912U (en) * | 2020-05-06 | 2020-12-01 | 中山市汉仁电子有限公司 | Connector with optimized structure |
| CN111752809A (en) * | 2020-07-02 | 2020-10-09 | 中国工商银行股份有限公司 | Circuit board and cabinet |
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| Publication number | Publication date |
|---|---|
| CN113611990B (en) | 2022-09-23 |
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