CN201910774U - Filter device for C wave-band switch - Google Patents
Filter device for C wave-band switch Download PDFInfo
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- CN201910774U CN201910774U CN2010206375681U CN201020637568U CN201910774U CN 201910774 U CN201910774 U CN 201910774U CN 2010206375681 U CN2010206375681 U CN 2010206375681U CN 201020637568 U CN201020637568 U CN 201020637568U CN 201910774 U CN201910774 U CN 201910774U
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Abstract
The utility model discloses a filter device for a C wave-band switch and relates to a filter in the communication field. The filter device comprises a first switch, a second switch, a wave detector, an AD (analog to digital) converter, a control circuit, a power supply and a cavity filter, wherein the first switch is an independent printed board; the second switch and the wave detector are placed on the printed board; the AD converter, the control circuit and the power supply are placed on the printed board; and the cavity filter is integrated in a shielding box; the first switch and the second switch are single-pole double-throw switches formed by integrating microwave single chips and are debugging-free; and the cavity filter is a two-section six-stage comb-shaped filter. The filter device provided by the utility model has the advantages that the components are easily chosen, the debugging difficulty is reduced, the wave detection and control are easily realized, the generality is good, and the actual application proves that the practical effect of the device is good.
Description
Technical field
The utility model relates to a kind of C-band switch filtering apparatus in a kind of communications field, and the type when being specially adapted to high-frequency apparatus transmitting-receiving difference frequency switches.
Background technology
Filter is a kind of frequency selection device, and it transmits a certain frequency or some frequency smoothly, and other frequency is decayed.Microwave filter is extremely important part in the modern microwave communication technology, is indispensable device in the microwave system, and the quality of its performance tends to directly influence the quality of whole communication system.Along with the developing rapidly of microwave technology, this class device constantly increases in the demand in microwave communication, microwave-navigation, guidance, remote measuring and controlling, satellite communication and military electronic countermeasures field in recent years.Particularly owing to the growing tension of radio-communication frequencies resource, the frequency interval that is assigned to the various types of communication system is more and more closeer, and these performance index to microwave filter are had higher requirement, and with the decay of reduction system to signal, suppress various interference signals.
It is different frequently that the microwave current wireless communication system mostly is transmitting-receiving, the communication between the different type of machines, and system's flexible Application for convenience utilizes the switch filter group can realize switching between the different type of machines.Switch in the switch filter mostly is PIN pipe design and realizes, increased the workload of design, debugging.
The utility model content
Technical problem to be solved in the utility model is to avoid the weak point in the above-mentioned background technology, and provide a kind of microwave monolithic switch and cavity body filter to be integrated into way in the same shielding box, only need the debugging cavity body filter, shortened debug time greatly and increased reliability.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of C-band switch filtering apparatus of the present utility model, comprise first switch, second switch, wave detector, AD converter, control circuit, power supply and cavity body filter, the input 1 external radio-frequency input signals of first switch, the output 2 of first switch is connected with the input 1 of cavity body filter, and the output 3 of first switch is connected with the input 3 of cavity body filter; The output 2 of cavity body filter is connected with the input 2 of second switch, and the output 4 of cavity body filter is connected with the input 3 of second switch; The output 1 external radio-frequency (RF) output end of second switch is connected with the rf inputs 1 of wave detector simultaneously; The output 2 of wave detector is connected with the input 1 of AD converter; The output 2 of AD converter passes through I
2The C bus is connected with the input 1 of control circuit; The output 2 of control circuit links to each other with the input 4 of first switch and second switch respectively, and the input of control circuit, output 3 pass through I
2The C bus is accepted the control of external circuit, and electric power output voltage V end is connected with the corresponding input voltage V end of each parts respectively; Radiofrequency signal enters the input 1 of first switch, it is to be exported by the output 2 or 3 of first switch that first switch decides radiofrequency signal by control circuit, radiofrequency signal enters the input 1 or 3 of cavity body filter then, cavity body filter carries out being exported by output 2 or 4 after the filtering to radiofrequency signal, radiofrequency signal enters the input 2 or 3 of second switch then, it is to be imported by the input 2 or 3 of second switch that second switch decides radiofrequency signal by control circuit equally, radiofrequency signal is via output 1 output of second switch then, radiofrequency signal is coupled into the rf inputs 1 of wave detector through resistance simultaneously, radiofrequency signal is transformed to analog voltage signal, the output 2 of wave detector is sent into the input 1 of AD converter to analog voltage signal, and AD converter is passed through I after analog voltage signal is transformed to digital signal
2The C bus is given the input 1 of control circuit, and the input of control circuit, output 3 are accepted the direction that external circuit is controlled first switch and second switch.
As a kind of improvement of the present utility model, described first switch, second switch are the integrated single-pole double-throw switch (SPDT) of microwave monolithic, and wave detector is the radio frequency wave detector, and described cavity body filter is 2 section 6 rank comb filter.
As further improvement of the utility model, first switch is made a printed board separately and is positioned in the shielding box, second switch and wave detector are made a printed board and are positioned in the shielding box, AD converter, control circuit and power supply are made a printed board and are positioned in the shielding box, and cavity body filter is integrated in the shielding box and processes.
As further improvement of the utility model, each parts integrated printed board all can independently change.
As further improvement of the utility model, described first switch, second switch can be that single-pole double throw also can be that hilted broadsword is thrown more.
As further improvement of the utility model, it also can be multistage that described cavity body filter can be 2 sections.
As further improvement of the utility model, described cavity body filter can be interdigital or coaxial configuration.
As further improvement of the utility model, described switch filtering apparatus can design the frequency range at C, also can design at other microwave frequency bands and use.
Owing to adopted technique scheme, the obtained technological progress of the utility model is:
1, the utility model band integrated level height, control flexibly, cavity body filter and active switch are integrated in the shielding box, have reduced the complexity of system, externally adopt 2 I
2The C bus, convenient, flexible control.
2, port standing wave of the present utility model is good, and cavity body filter has source switch to be debugged together, and standing wave can be better than 1.2.
3, the utlity model has output detection function, detect the output signal power size, make things convenient for system's flexible Application at the radio-frequency (RF) output end mouth.
4, each parts of the utility model integrated printed board all can independently change, to adapt to different engineering demands, versatility is good.
Description of drawings
Fig. 1 is the utility model electricity principle calcspar.
Fig. 2 is the utility model preferred embodiment theory diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further details:
Fig. 1 is the utility model electricity principle calcspar, the input 1 external radio-frequency input signals of first switch, the output 2 of first switch is connected with the input 1 of cavity body filter, the output 3 of first switch is connected with the input 3 of cavity body filter, the output 2 of cavity body filter is connected with the input 2 of second switch, the output 4 of cavity body filter is connected with the input 3 of second switch, the output 1 external radio-frequency (RF) output end of second switch is connected with the rf inputs 1 of wave detector simultaneously, the output 2 of wave detector is connected with the input 1 of AD converter, and the output 2 of AD converter passes through I
2The C bus is connected with the input 1 of control circuit, and the output 2 of control circuit links to each other with the input 4 of first switch and second switch respectively, and the input of control circuit, output 3 pass through I
2The C bus is accepted the control of external circuit, and electric power output voltage V end is connected with the corresponding input voltage V end of each parts respectively.
Fig. 2 is the utility model preferred embodiment theory diagram, and first switch, second switch are the integrated single-pole double-throw switch (SPDT) of microwave monolithic, and wave detector is the radio frequency wave detector, and described cavity body filter is 2 section 6 rank comb filter.
Radiofrequency signal enters the input 1 of first switch 1, it is to be exported by the output 2 or 3 of first switch 1 that first switch 1 decides radiofrequency signal by control circuit 5, radiofrequency signal enters the input 1 or 3 of cavity body filter 7 then, 7 pairs of radiofrequency signals of cavity body filter carry out being exported by output 2 or 4 after the filtering, radiofrequency signal enters the input 2 or 3 of second switch 2 then, it is to be imported by the input 2 or 3 of second switch 2 that second switch 2 decides radiofrequency signal by control circuit 5 equally, radiofrequency signal is via output 1 output of second switch 2 then, radiofrequency signal is coupled into the rf inputs 1 of wave detector 3 through resistance simultaneously, radiofrequency signal is transformed to analog voltage signal, the output 2 of wave detector 3 is sent into the input 1 of AD converter 4 to analog voltage signal, and AD converter 4 is passed through I after analog voltage signal is transformed to digital signal
2The C bus is given the input 1 of control circuit 5, and the input of control circuit 5, output 3 are accepted the direction that external circuit is controlled first switch 1 and second switch 2.
First switch is positioned on the printed board PCB1, its size is long * wide be 39.8 * 24mm; Second switch and wave detector 3 are positioned on the printed board PCB2, its size is long * wide be 39.8 * 24mm; AD converter 4, control circuit 5 and power supply 6 are positioned on the printed board PCB3, its size is long * wide be 150 * 40mm; Cavity body filter 7 is integrated in the shielding box to be processed.
Claims (8)
1. C-band switch filtering apparatus, comprise first switch (1), second switch (2), wave detector (3), AD converter (4), control circuit (5), power supply (6) and cavity body filter (7), it is characterized in that: the input 1 external radio-frequency input signals of first switch (1), the output 2 of first switch (1) is connected with the input 1 of cavity body filter (7), and the output 3 of first switch (1) is connected with the input 3 of cavity body filter (7); The output 2 of cavity body filter (7) is connected with the input 2 of second switch (2), and the output 4 of cavity body filter (7) is connected with the input 3 of second switch (2); The output 1 external radio-frequency (RF) output end of second switch (2) is connected with the rf inputs 1 of wave detector (3) simultaneously; The output 2 of wave detector (3) is connected with the input 1 of AD converter (4); The output 2 of AD converter (4) passes through I
2The C bus is connected with the input 1 of control circuit (5); The output 2 of control circuit (5) links to each other with the input 4 of first switch (1) with second switch (2) respectively, and input, the output 3 of control circuit (5) pass through I
2The C bus is accepted the control of external circuit, and power supply (6) output voltage V end is connected with the corresponding input voltage V end of each parts respectively;
Radiofrequency signal enters the input 1 of first switch (1), it is to be exported by the output 2 or 3 of first switch (1) that first switch (1) decides radiofrequency signal by control circuit (5), radiofrequency signal enters the input 1 or 3 of cavity body filter (7) then, cavity body filter (7) carries out being exported by output 2 or 4 after the filtering to radiofrequency signal, radiofrequency signal enters the input 2 or 3 of second switch (2) then, it is to be imported by the input 2 or 3 of second switch (2) that second switch (2) decides radiofrequency signal by control circuit (5) equally, radiofrequency signal is via output 1 output of second switch (2) then, radiofrequency signal is coupled into the rf inputs 1 of wave detector (3) through resistance simultaneously, radiofrequency signal is transformed to analog voltage signal, the output 2 of wave detector (3) is sent into the input 1 of AD converter (4) to analog voltage signal, and AD converter (4) is passed through I after analog voltage signal is transformed to digital signal
2The C bus is given the input 1 of control circuit (5), and the input of control circuit (5), output 3 are accepted the direction that external circuit is controlled first switch (1) and second switch (2).
2. a kind of C-band switch filtering apparatus according to claim 1, it is characterized in that: described first switch, second switch are the integrated single-pole double-throw switch (SPDT) of microwave monolithic, wave detector is the radio frequency wave detector, and described cavity body filter is 2 section 6 rank comb filter.
3. a kind of C-band switch filtering apparatus according to claim 2, it is characterized in that: first switch (1) is made a printed board separately and is positioned in the shielding box, second switch (2) and wave detector (3) are made a printed board and are positioned in the shielding box, AD converter (4), control circuit (5) and power supply (6) are made a printed board and are positioned in the shielding box, and cavity body filter (7) is integrated in the shielding box to be processed.
4. a kind of C-band switch filtering apparatus according to claim 3 is characterized in that: each parts integrated printed board all can independently change.
5. a kind of C-band switch filtering apparatus according to claim 1 and 2 is characterized in that: described first switch (1), second switch (2) can be that single-pole double throw also can be that hilted broadsword is thrown more.
6. a kind of C-band switch filtering apparatus according to claim 1 and 2 is characterized in that: it also can be multistage that described cavity body filter can be 2 sections.
7. a kind of C-band switch filtering apparatus according to claim 1 and 2, it is characterized in that: described cavity body filter can be interdigital or coaxial configuration.
8. a kind of C-band switch filtering apparatus according to claim 1 and 2, it is characterized in that: described switch filtering apparatus can design the frequency range at C, also can design at other microwave frequency bands and use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206375681U CN201910774U (en) | 2010-12-02 | 2010-12-02 | Filter device for C wave-band switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206375681U CN201910774U (en) | 2010-12-02 | 2010-12-02 | Filter device for C wave-band switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201910774U true CN201910774U (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206375681U Expired - Lifetime CN201910774U (en) | 2010-12-02 | 2010-12-02 | Filter device for C wave-band switch |
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| Country | Link |
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| CN (1) | CN201910774U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611472A (en) * | 2011-12-26 | 2012-07-25 | 深圳市虹远通信有限责任公司 | Multiband wireless signal transceiver system |
| CN103647575A (en) * | 2013-12-19 | 2014-03-19 | 中国航天科工集团八五一一研究所 | 2-12GHz broadband microwave front-end circuit and 2-12GHz microwave signal receiving method |
-
2010
- 2010-12-02 CN CN2010206375681U patent/CN201910774U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611472A (en) * | 2011-12-26 | 2012-07-25 | 深圳市虹远通信有限责任公司 | Multiband wireless signal transceiver system |
| CN103647575A (en) * | 2013-12-19 | 2014-03-19 | 中国航天科工集团八五一一研究所 | 2-12GHz broadband microwave front-end circuit and 2-12GHz microwave signal receiving method |
| CN103647575B (en) * | 2013-12-19 | 2015-07-22 | 中国航天科工集团八五一一研究所 | 2-12GHz broadband microwave front-end circuit and 2-12GHz microwave signal receiving method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110727 |