CN204439828U - A kind of two-way multi-operation mode channel selecting and signal sampling circuit - Google Patents
A kind of two-way multi-operation mode channel selecting and signal sampling circuit Download PDFInfo
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- CN204439828U CN204439828U CN201520042902.1U CN201520042902U CN204439828U CN 204439828 U CN204439828 U CN 204439828U CN 201520042902 U CN201520042902 U CN 201520042902U CN 204439828 U CN204439828 U CN 204439828U
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Abstract
The utility model discloses a kind of two-way multi-operation mode channel selecting and signal sampling circuit, it comprises single-pole triple-throw (SPTT) switch, single-pole double-throw switch (SPDT) one, single-pole double-throw switch (SPDT) two, power splitter, phase shifter, sample circuit one, sample circuit two, sampling switch, Test Switchboard one and Test Switchboard two; The utility model is by multiple switch refinement selection circuit, form multiple output mode, sample circuit can sample any working state signal, the problem that the polarization mode that solution prior art energy coupled system realizes is few, function singleness, sample circuit only can be monitored public passage.
Description
Technical field
The utility model relates to a kind of two-way multi-operation mode channel selecting and signal sampling circuit.
Background technology
Along with high-tech development, in Modern Electronic Countermeasure war, the interference problem that radar faces is more and more severeer.And in order to tackle this problem, the fourth feature in radar echo signal except amplitude, phase place, Doppler shift---polarization characteristic, has obtained development and utilization widely; So-called polarization, namely after radar wave irradiates target, target has specific polarization change effect to the electromagnetic wave irradiated, its transformation relation determined by the shape of target, size, structure and orientation, measure different target to after the situation of change of various polarized wave, just can form a feature space, and accordingly target be identified; Polarization is the new developing direction of of current radar technology.
And high-power channel selection circuit is one of thinking realizing multipolarization transmitting-receiving subassembly, for coupled system realizes the Polarization selection function of radiofrequency signal, often need to arrange high-power channel selecting and sample circuit.
But the channel selection circuit of routine has following deficiency: the output mode that conventional channel selection circuit only has the mutual exclusion of two passages to select, the polarization mode that energy coupled system realizes is few, function singleness; Sample circuit only can be monitored public passage, can not monitor the state of all devices; This just brings very large inconvenience.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of two-way multi-operation mode channel selecting and signal sampling circuit are provided, solve the problem that the polarization mode that prior art energy coupled system realizes is few, function singleness, sample circuit only can be monitored public passage.
The purpose of this utility model is achieved through the following technical solutions: a kind of two-way multi-operation mode channel selecting and signal sampling circuit, and it comprises single-pole triple-throw (SPTT) switch, single-pole double-throw switch (SPDT) one, single-pole double-throw switch (SPDT) two, power splitter, phase shifter, sample circuit one, sample circuit two, sampling switch, Test Switchboard one and Test Switchboard two, prevention at radio-frequency port 1 is bi-directionally connected with the common port of single-pole triple-throw (SPTT) switch, port one and the single-pole double-throw switch (SPDT) one of single-pole triple-throw (SPTT) switch are bi-directionally connected, port 3 and the single-pole double-throw switch (SPDT) two of single-pole triple-throw (SPTT) switch are bi-directionally connected, the port 2 of single-pole triple-throw (SPTT) switch is bi-directionally connected with the common port of power splitter, power splitter and single-pole double-throw switch (SPDT) one are bi-directionally connected, power splitter is also bi-directionally connected by phase shifter and single-pole double-throw switch (SPDT) two, the common port of single-pole double-throw switch (SPDT) one is bi-directionally connected by the common port of sample circuit one with Test Switchboard one, Test Switchboard one and prevention at radio-frequency port 2 are bi-directionally connected, the common port of single-pole double-throw switch (SPDT) two is bi-directionally connected by the common port of sample circuit two with Test Switchboard two, Test Switchboard two and prevention at radio-frequency port 3 are bi-directionally connected, sample circuit one and sample circuit two are also bi-directionally connected with sampling switch simultaneously, common port and the sampling port of sampling switch are bi-directionally connected.
Described a kind of two-way multi-operation mode channel selecting and signal sampling circuit also comprise a control circuit for input control signal, and the output terminal of described control circuit is connected with single-pole triple-throw (SPTT) switch, phase shifter, single-pole double-throw switch (SPDT) one, single-pole double-throw switch (SPDT) two, Test Switchboard one and Test Switchboard two respectively.
Described Test Switchboard one is also connected with load 1 and load 2 respectively with Test Switchboard two.
Described sample circuit one and sample circuit two respectively comprise a coupling mechanism.
The beneficial effects of the utility model are: (1) perfect channel selecting ability, custom circuit basis increases switch, power divider forms and more export combination, increase the ability that two-port exports simultaneously; (2) phase relation and when increasing phase shifter to regulate two-port to export simultaneously; (3) sample circuit is rearmounted, guarantee to carry out sampling monitoring to each output state, for guaranteeing the accuracy of testing; (4) increase Test Switchboard, carry out coupling isolation to provide test load.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model;
Fig. 2 is the schematic block circuit diagram of embodiment one;
Fig. 3 is bobbin and the pins corresponding relation figure of embodiment one;
Fig. 4 is the channel selecting relation schematic diagram of embodiment one;
Fig. 5 is the phase shift respective value schematic diagram of embodiment one;
Fig. 6 is the actual test data of embodiment one amplitude-phase consistency.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, figure acceptance of the bid " c " is expressed as the common port of port, a kind of two-way multi-operation mode channel selecting and signal sampling circuit, it comprises single-pole triple-throw (SPTT) switch, single-pole double-throw switch (SPDT) one, single-pole double-throw switch (SPDT) two, power splitter, phase shifter, sample circuit one, sample circuit two, sampling switch, Test Switchboard one and Test Switchboard two, prevention at radio-frequency port 1 is bi-directionally connected with the common port of single-pole triple-throw (SPTT) switch, port one and the single-pole double-throw switch (SPDT) one of single-pole triple-throw (SPTT) switch are bi-directionally connected, port 3 and the single-pole double-throw switch (SPDT) two of single-pole triple-throw (SPTT) switch are bi-directionally connected, the port 2 of single-pole triple-throw (SPTT) switch is bi-directionally connected with the common port of power splitter, power splitter and single-pole double-throw switch (SPDT) one are bi-directionally connected, power splitter is also bi-directionally connected by phase shifter and single-pole double-throw switch (SPDT) two, the common port of single-pole double-throw switch (SPDT) one is bi-directionally connected by the common port of sample circuit one with Test Switchboard one, Test Switchboard one and prevention at radio-frequency port 2 are bi-directionally connected, the common port of single-pole double-throw switch (SPDT) two is bi-directionally connected by the common port of sample circuit two with Test Switchboard two, Test Switchboard two and prevention at radio-frequency port 3 are bi-directionally connected, sample circuit one and sample circuit two are also bi-directionally connected with sampling switch simultaneously, common port and the sampling port of sampling switch are bi-directionally connected.
Described a kind of two-way multi-operation mode channel selecting and signal sampling circuit also comprise a control circuit for input control signal, and the output terminal of described control circuit is connected with single-pole triple-throw (SPTT) switch, phase shifter, single-pole double-throw switch (SPDT) one, single-pole double-throw switch (SPDT) two, Test Switchboard one and Test Switchboard two respectively.
Described Test Switchboard one is also connected with load 1 and load 2 respectively with Test Switchboard two.
Described sample circuit one and sample circuit two respectively comprise a coupling mechanism.
In the circuit, following several output mode can be provided:
Pattern one: the radiofrequency signal inputted by prevention at radio-frequency port 1 is by the port one of single-pole triple-throw (SPTT) switch, exported by prevention at radio-frequency port 2 after single-pole double-throw switch (SPDT) one, sample circuit one, Test Switchboard one, only there is the loss of switch, sample circuit in whole output link, sampling switch selects sample circuit one, i.e. the sample of signal of radio frequency port 2 output;
Pattern two: the radiofrequency signal inputted by prevention at radio-frequency port 1 is by the port 3 of single-pole triple-throw (SPTT) switch, exported by prevention at radio-frequency port 3 after single-pole double-throw switch (SPDT) two, sample circuit two, Test Switchboard two, only there is the loss of switch, sample circuit in whole output link, sampling switch selects sample circuit two, i.e. the sample of signal of radio frequency port 3 output;
Pattern three: the radiofrequency signal inputted by prevention at radio-frequency port 1 is by the port 2 of single-pole triple-throw (SPTT) switch, be divided into two through power splitter, one tunnel is exported by prevention at radio-frequency port 2 after single-pole double-throw switch (SPDT) one, sample circuit one, Test Switchboard one, and another road is exported by prevention at radio-frequency port 3 after phase shifter, single-pole double-throw switch (SPDT) two, sample circuit two, Test Switchboard two; Now prevention at radio-frequency port 2 and prevention at radio-frequency port 3 export simultaneously, and two-way exports except the loss of link breaker in middle, sample circuit, and go back the theoretical loss of power divider, sampling switch is optional selects sample circuit one or two, to choosing output port output signal sampling; In this mode, the phase place of phase shifter can be changed by control circuit, thus change prevention at radio-frequency port 2, the phase differential of output signal between prevention at radio-frequency port 3, now each phase shift state is to a different state, thus is formed the polarization characteristic needed by follow-up system.
This passage is two-way, and during reverse operation, principle is same as described above.
Embodiment one: as shown in Figure 2, be the schematic block circuit diagram of embodiment one, sample circuit one and sample circuit two respectively comprise a coupling mechanism.The interface of switch phase shift assembly comprises Test Switchboard control signal, channel selecting signal, phase shifter control signal, power supply signal; Physical interface is glass insulator capillary.
The main technical requirements of this module is as follows:
Frequency range: 222MHz ~ 266MHZ;
Insertion loss: pass-through state≤0.8dB;
Merit divides phase-shift states≤1.7dB(not containing 3dB theoretical loss);
Resist and burn power: P peak >=500W;
Phase shifters' digit: 2,0 °, 90 °, 180 °, 270 °.
As shown in Figure 3, be bobbin and the pins corresponding relation figure of embodiment one, wherein, 4 pin are Test Switchboard control signal, and 5,6 pin are channel selecting signal, and 7,8 pin are phase shifter control signal.
Test Switchboard one, Test Switchboard two are two identical switches, and synchro control.All be placed in absorbing load end during high level, corresponding test mode, low level leads directly to corresponding working state, and the default setting of two Test Switchboards is low level.
As shown in Figure 4, be the channel selecting relation schematic diagram of embodiment one, in figure, 1-9 is the port of each switch, switch one be defaulted as port one, switch 2 be defaulted as port 4, switch three be defaulted as port 7, selector switch be defaulted as port A; The abnomal conditions such as power-off, control code disappearance are all treated to default conditions.
As shown in Figure 5, be the phase shift respective value schematic diagram of embodiment one, it is 0 phase shift that phase shifter arranges default conditions, all processes 0 phase-shift states during the abnomal conditions such as power-off, Serial Control code disappearance.
The requirement of passage amplitude-phase consistency, the interchannel of two put-through channel 1-4-8 and 3-7-9 is with frequency phase differential≤5 °; Merit divides the interchannel of phase shift passage 2-5-8 and 2-6-9 with frequency phase differential≤8 °; Interchannel is with bin magnitudes difference≤0.5dB.
The actual test data of amplitude-phase consistency is carried out as shown in Figure 6 to the material object made according to the principle of embodiment one, according to this module, real system can selection level polarization, vertical polarization and other multiple polarization different according to phase relation, achieve system requirements.
To sum up, this circuit has carried out going deep into refinement on the circuit of basic polarization switch, by increasing number of switches and phase shifter, power splitter, achieving and mode of operation is exported the multi-mode being increased to three large models export from simple level, vertical alternative.
Claims (4)
1. two-way multi-operation mode channel selecting and a signal sampling circuit, is characterized in that: it comprises single-pole triple-throw (SPTT) switch, single-pole double-throw switch (SPDT) one, single-pole double-throw switch (SPDT) two, power splitter, phase shifter, sample circuit one, sample circuit two, sampling switch, Test Switchboard one and Test Switchboard two, prevention at radio-frequency port 1 is bi-directionally connected with the common port of single-pole triple-throw (SPTT) switch, port one and the single-pole double-throw switch (SPDT) one of single-pole triple-throw (SPTT) switch are bi-directionally connected, port 3 and the single-pole double-throw switch (SPDT) two of single-pole triple-throw (SPTT) switch are bi-directionally connected, the port 2 of single-pole triple-throw (SPTT) switch is bi-directionally connected with the common port of power splitter, power splitter and single-pole double-throw switch (SPDT) one are bi-directionally connected, power splitter is also bi-directionally connected by phase shifter and single-pole double-throw switch (SPDT) two, the common port of single-pole double-throw switch (SPDT) one is bi-directionally connected by the common port of sample circuit one with Test Switchboard one, Test Switchboard one and prevention at radio-frequency port 2 are bi-directionally connected, the common port of single-pole double-throw switch (SPDT) two is bi-directionally connected by the common port of sample circuit two with Test Switchboard two, Test Switchboard two and prevention at radio-frequency port 3 are bi-directionally connected, sample circuit one and sample circuit two are also bi-directionally connected with sampling switch simultaneously, common port and the sampling port of sampling switch are bi-directionally connected.
2. the two-way multi-operation mode channel selecting of one according to claim 1 and signal sampling circuit, it is characterized in that: it also comprises a control circuit for input control signal, the output terminal of described control circuit is connected with single-pole triple-throw (SPTT) switch, phase shifter, single-pole double-throw switch (SPDT) one, single-pole double-throw switch (SPDT) two, Test Switchboard one and Test Switchboard two respectively.
3. the two-way multi-operation mode channel selecting of one according to claim 1 and signal sampling circuit, is characterized in that: described Test Switchboard one is also connected with load 1 and load 2 respectively with Test Switchboard two.
4. the two-way multi-operation mode channel selecting of one according to claim 1 and signal sampling circuit, is characterized in that: described sample circuit one and sample circuit two respectively comprise a coupling mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520042902.1U CN204439828U (en) | 2015-01-22 | 2015-01-22 | A kind of two-way multi-operation mode channel selecting and signal sampling circuit |
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| CN201520042902.1U CN204439828U (en) | 2015-01-22 | 2015-01-22 | A kind of two-way multi-operation mode channel selecting and signal sampling circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112866158A (en) * | 2021-01-25 | 2021-05-28 | 凯迈（洛阳）测控有限公司 | Double-channel radio fuze simulator |
| CN116827321A (en) * | 2023-08-28 | 2023-09-29 | 中国电子科技集团公司第二十九研究所 | Switch and resistor-based switch routing circuit and application method thereof |
-
2015
- 2015-01-22 CN CN201520042902.1U patent/CN204439828U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112866158A (en) * | 2021-01-25 | 2021-05-28 | 凯迈（洛阳）测控有限公司 | Double-channel radio fuze simulator |
| CN116827321A (en) * | 2023-08-28 | 2023-09-29 | 中国电子科技集团公司第二十九研究所 | Switch and resistor-based switch routing circuit and application method thereof |
| CN116827321B (en) * | 2023-08-28 | 2023-12-05 | 中国电子科技集团公司第二十九研究所 | Switch and resistor-based switch routing circuit and application method thereof |
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