CN-122001330-A - Matrix filtering component and filtering device based on coaxial switch control

CN122001330ACN 122001330 ACN122001330 ACN 122001330ACN-122001330-A

Abstract

The invention provides a matrix filtering component and a filtering device based on coaxial switch control, wherein the matrix filtering component based on coaxial switch control comprises an acquisition module, a filtering module and a control module, a filtering gating signal is acquired through the acquisition module, the filtering gating signal is received through the control module, a multi-channel coaxial switch in the filtering module is automatically controlled based on the filtering gating signal so as to switch a current filtering channel to a target filtering channel, and the filtering module comprises a plurality of filtering channels with different filtering parameters, so that a signal source is filtered by the target filtering channel and then is output. The matrix filter component based on the coaxial switch control can realize the switching of the filter channel directly according to the input filter gating signal, support the multi-frequency-point automatic test flow, reduce the mechanical contact and the manual operation, can be applied to a plurality of different scenes and has low control cost.

Inventors

LUO CAIXUE
YU ZHOU
WEN XIANCHAO
WEI YAFENG
CHEN HANG
LI JING
WANG JIANAN

Assignees

重庆吉芯科技有限公司

Dates

Publication Date: 20260508
Application Date: 20260120

Claims (10)

1. A matrix filter assembly based on in-line switching control, comprising: the acquisition module is used for acquiring a filtering gating signal; The filtering module comprises a plurality of filtering channels with different filtering parameters and a multi-channel coaxial switch, and selectively filters a signal source based on the multi-channel coaxial switch; And the input end of the control module is connected with the acquisition module, the output end of the control module is connected with the filtering module, and the current filtering channel is switched into a target filtering channel based on the filtering gating signal, so that the signal source is output after passing through the target filtering channel.
2. The matrix filter assembly based on coaxial switch control according to claim 1, wherein the filter module comprises two M-channel coaxial switches and M filters, an ith gating end of a first M-channel coaxial switch is connected with an ith gating end of a second M-channel coaxial switch after passing through the ith filter, a common end of the first M-channel coaxial switch is an input end of the filter module, and a common end of the second M-channel coaxial switch is an output end of the filter module, wherein M, i is a positive integer, and M is greater than or equal to 4, and i is greater than or equal to 1 and less than or equal to M.
3. The on-axis switch control based matrix filter assembly of claim 2, wherein the filter module comprises N expansion ports, the filter and the frequency synthesizer are added based on the N expansion ports, or the frequency synthesizer is added based on the N expansion ports alone, N is a positive even number, and N is 4≤n≤m.
4. The coaxial switch control-based matrix filter assembly of claim 2, wherein the acquisition module comprises a manual input unit, a first communication unit and a second communication unit, the filter gating signal comprises a manual rotation signal, a debugging test signal and an automatic test signal, the manual input unit is used for acquiring the manual rotation signal, the first communication unit is connected with the debugging system and receives the debugging test signal, the second communication unit is connected with the automatic test signal, the priority of the manual rotation signal is higher than that of the debugging test signal, and the priority of the debugging test signal is higher than that of the automatic test signal.
5. The coaxial switch control-based matrix filter assembly of claim 4, wherein the first communication unit comprises a first chip, a first capacitor, a power supply terminal of the first chip is connected to a first power supply voltage, a power supply terminal of the first chip is further connected to ground through the first chip, and a ground terminal of the first chip is connected to ground, wherein M input terminals of the first chip are input terminals of the first communication unit, and M output terminals of the first chip are output terminals of the first communication unit.
6. The coaxial switch control-based matrix filter assembly of claim 4, wherein the second communication unit comprises a first resistor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first connector and a second chip, wherein a first pin of the first connector is connected to a first data transmitting pin of the second chip after passing through the first resistor, a second pin of the first connector is connected to a first data receiving pin of the second chip after passing through the second resistor, a third pin of the first connector is connected to ground, a power supply positive input terminal of the second chip is connected to a second power supply voltage, the second power supply voltage is also connected to ground after passing through the fourth capacitor, a power supply positive input terminal of the second chip is also connected to a positive charge pump output terminal of the second chip after passing through the third capacitor, a negative charge pump output terminal of the second chip is connected to ground after passing through the second capacitor, a ground chip of the second connector is connected to a second terminal of the second chip, a second pin of the second communication unit is connected to a second positive charge pump, a second input terminal of the second chip is connected to a second positive charge pump, a second input terminal of the second communication unit is connected to the second charge pump, and a second output terminal of the second chip is connected to the second positive charge pump.
7. The matrix filter assembly based on coaxial switch control according to claim 2, wherein the control module comprises a control unit and a display unit, the control unit is connected with the output end of the acquisition module, the control unit generates a control signal according to the filtering gating signal so that the control signal controls the multi-channel coaxial switch to selectively filter the signal source, and the display unit is connected with the control unit and displays the filtering channel and the filtering state in a working state based on the control signal.
8. The coaxial switch control-based matrix filter assembly of claim 7, wherein the control unit comprises a third resistor, M fourth resistor, seventh capacitor, third eighth capacitor, ninth capacitor, tenth capacitor, eleventh capacitor, two twelfth capacitors, a crystal oscillator, a second connector, a third chip, two fourth chips, a third digital power supply terminal of the third chip is connected to a second power supply voltage, each digital power supply terminal of the third chip is connected to the ground via the corresponding eighth resistor, an analog power supply terminal of the third chip is connected to the ground via the eleventh capacitor, a fourth ground terminal of the third chip is connected to the ground, a first terminal of the third resistor is connected to the second power supply voltage, a second terminal of the third resistor is connected to the ground via the seventh capacitor, a reset terminal of the third chip is connected to a second power supply voltage, a test pin of the third chip is connected to the test chip, a third terminal of the third chip is connected to the test chip is connected to the ground via the eighth resistor, a third terminal of the test chip is connected to the third terminal of the test chip, a third terminal of the third chip is connected to the test chip is connected to the data terminal of the test chip, a third terminal of the test chip is connected to the test chip, and the test chip is connected to the test chip, the power supply end of each fourth chip is connected with a first power supply voltage, the power supply end of each fourth chip is grounded through the corresponding twelfth capacitor, the ith digital input and output end of the third chip is connected with the ith input end of each fourth chip through the ith fourth resistor, the data transmitting end of the third chip is the first output end of the control unit, the data receiving end of the third chip is the first input end of the control unit, the M input ends of the fourth chip are the second input ends of the control module, and the M output ends of the fourth chip are the second output ends of the control unit.
9. The coaxial switch control-based matrix filter assembly of claim 8, wherein the display unit comprises M thirteenth resistors, fourteenth resistors, fifteenth resistors, M first light emitting diodes, second light emitting diodes, and a third connector, an i-th pin of the third connector is grounded through the i-th first light emitting diode and the i-th thirteenth resistor, a power indication pin of the third connector is grounded through the second light emitting diode and the fourteenth resistor, and a second power voltage is connected to a power end of the third connector through the fifteenth resistor, wherein M input pins of the third connector are input ends of the display unit.
10. A filtering apparatus, comprising: A coaxial switch control based matrix filter assembly according to any of claims 1-9; the matrix filter assembly is fixedly arranged in the shell, and an anodic oxidation blackening layer is formed on the outer surface of the shell.

Description

Matrix filtering component and filtering device based on coaxial switch control Technical Field The invention relates to the technical field of electronic testing and measurement, in particular to a matrix filter assembly and a filter device based on coaxial switch control. Background The multi-frequency automatic test system is a test platform integrated with modern measuring instruments and switch matrixes. It is designed specifically for application scenarios requiring rapid, accurate, continuous Radio Frequency (RF) or microwave parameter measurements at multiple discrete frequency points. In the testing process of the multi-frequency automatic testing system of the integrated circuit device, signals of a plurality of different frequency points need to be filtered. In the prior art, the filters of the corresponding frequency bands are manually replaced by operators, so that the test period is prolonged, the requirements of batch automatic test cannot be met, the working efficiency is low, the mechanical contact state of the connecting port is changed in the process of manually replacing the filters, signal transmission parameters can be possibly caused to fluctuate, the test repeatability is high, the risk of misoperation exists in manually replacing the filters, and the reliability of a test system is reduced. Disclosure of Invention The invention provides a matrix filter assembly and a filter device based on coaxial switch control, which are used for solving the problems of long test time, unstable parameters and low system reliability of manually replacing filters in different frequency bands in the multi-frequency point test process. In a first aspect, the present invention provides a matrix filter assembly based on in-line switching control, comprising: the acquisition module is used for acquiring a filtering gating signal; The filtering module comprises a plurality of filtering channels with different filtering parameters and a multi-channel coaxial switch, and selectively filters a signal source based on the multi-channel coaxial switch; And the input end of the control module is connected with the acquisition module, the output end of the control module is connected with the filtering module, and the current filtering channel is switched into a target filtering channel based on the filtering gating signal, so that the signal source is output after passing through the target filtering channel. In an embodiment of the present invention, the filtering module includes two M-channel coaxial switches and M filters, where an ith gating end of a first M-channel coaxial switch is connected to an ith gating end of a second M-channel coaxial switch after passing through the ith filter, a common end of the first M-channel coaxial switch is an input end of the filtering module, and a common end of the second M-channel coaxial switch is an output end of the filtering module, where M, i is a positive integer, M is greater than or equal to 4, and i is greater than or equal to 1 and less than or equal to M. In an embodiment of the present invention, the filtering module includes N expansion ports, and the filter and the frequency synthesizer are added based on the N expansion ports, or the frequency synthesizer is added based on the N expansion ports separately, where N is a positive even number, and N is greater than or equal to 4 and less than or equal to M. In an embodiment of the invention, the acquisition module comprises a manual input unit, a first communication unit and a second communication unit, wherein the filtering gating signal comprises a manual rotation signal, a debugging test signal and an automatic test signal, the manual input unit is used for acquiring the manual rotation signal, the first communication unit is connected with the debugging system and receives the debugging test signal, the second communication unit is connected with the automatic test signal, the priority of the manual rotation signal is higher than that of the debugging test signal, and the priority of the debugging test signal is higher than that of the automatic test signal. In an embodiment of the present invention, the first communication unit includes a first chip and a first capacitor, where a power supply end of the first chip is connected to a first power supply voltage, a power supply end of the first chip is further connected to ground through the first chip, and a ground end of the first chip is connected to ground, where M input ends of the first chip are input ends of the first communication unit, and M output ends of the first chip are output ends of the first communication unit. In a first embodiment of the present invention, the second communication unit includes a first resistor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first connector and a second chip, where a first pin of the first connector is connected to a first data transmitting pin of the sec