CN103618579A - Standing wave alarming load - Google Patents
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- CN103618579A CN103618579A CN201310617115.0A CN201310617115A CN103618579A CN 103618579 A CN103618579 A CN 103618579A CN 201310617115 A CN201310617115 A CN 201310617115A CN 103618579 A CN103618579 A CN 103618579A
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Abstract
The invention belongs to the field of standing wave testing, and provides a standing wave alarming load. In the stand wave alarming load, four quadrants are respectively provided with one mismatched load which is controlled by a control circuit, when standing wave alarm testing or calibration is conducted, the mismatched loads do not need to be rotated to the four quadrants, each quadrant can conduct standing wave testing and calibration, and a user can achieve testing or calibration of the phase values of the four quadrants only through a preset program or manual control. Personnel operation is reduced in the testing process, labor force is saved, testing errors caused by personnel operation is avoided, and the testing accuracy and the testing efficiency are improved.
Description
Technical field
The invention belongs to standing wave alarm test field, relate in particular to a kind of standing wave alarm load.
Background technology
In radio communication, the impedance mismatch of the impedance mismatch of antenna and feeder line or antenna and sender, high-frequency energy will produce reflection and turn back, and disturb and converge generation standing wave with the part of advancing, standing wave ratio has reacted radio wave loss aloft size, has also reacted received electric wave that machine the receives quality of radio wave degree simultaneously.
Standing wave Alarm Unit function is that the standing wave warning value by reading antenna port (ANT) reflects the fine or not degree being connected between antenna and filter.
During the alarm of test standing wave, need special-purpose mismatch load, the technical indicator of this load is vector value, comprises return loss value and phase place.Return loss value is generally claimed by client, and phase value need to be contained four quadrants, so the test of general standing wave alarm need have four loads.And in the test of the more filter of antenna opening, tester needs multiple rotary load, so not only increasing the time tested has also accelerated the degree of wear of load, increased simultaneously and in employee's operating process, rotated mismatch load and the not close-fitting probability of antenna port, thereby had a strong impact on the qualification rate of delivery.
Summary of the invention
The invention provides a kind of standing wave alarm load, be intended to solve existing mismatch and load on while carrying out standing wave alarm test and need the load of multiple rotary mismatch to cause mismatch load and antenna port not to closely cooperate, affect the quality of mismatch load.
In order to solve the problems of the technologies described above, the present invention is achieved in that a kind of standing wave alarm load, and described standing wave alarm load comprises power supply, and described standing wave alarm load also comprises:
Four mismatch loads, described four mismatch loads are placed in respectively four quadrants, for carrying out standing wave alarm test or respectively the phase value of described four quadrants being indicated when described standing wave alarm load is calibrated;
Control circuit, described control circuit is connected with described power supply and described four mismatch loads, for carrying out standing wave alarm test or when described standing wave alarm load is calibrated, described four mismatch loads being connected and carrying out switching controls with the break-make of described power supply.
In the present invention, by a mismatch load being set respectively at four quadrants, and by control circuit, controlled respectively, when carrying out standing wave alarm test or calibrating, do not need mismatch load rotation to four quadrants, each quadrant can carry out standing wave alarm test and calibration, user only need to be by pre-set programs or is manually controlled and just can realize the test of four quadrant phase values or calibration, in test process, reduced personnel's operation, the test error of having saved labour and having avoided personnel's operation to bring, test accuracy rate and testing efficiency have been improved.
Accompanying drawing explanation
Fig. 1 is the modular structure figure of the standing wave alarm load that provides of the embodiment of the present invention;
Fig. 2 is the modular structure figure of the standing wave alarm load that provides of another embodiment of the present invention;
Fig. 3 is the circuit structure diagram of the standing wave alarm load that provides of the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Below in conjunction with specific embodiment, specific implementation of the present invention is described in detail:
Fig. 1 shows the modular structure of the standing wave alarm load that the embodiment of the present invention provides, and for convenience of explanation, only lists the part relevant to the embodiment of the present invention, and details are as follows:
A kind of standing wave alarm load that the embodiment of the present invention provides, this standing wave alarm load comprises power supply VCC, this standing wave alarm load also comprises:
100, four mismatch loads 100 of four mismatch loads are placed in respectively four quadrants, for carrying out standing wave alarm test or respectively the phase value of described four quadrants being indicated when this standing wave alarm load is calibrated;
Fig. 2 shows the modular structure of the standing wave alarm load that another embodiment of the present invention provides, and for convenience of explanation, only lists the part relevant to the embodiment of the present invention, and details are as follows:
As one embodiment of the invention, control circuit 200 comprises:
The output of automatic control module 201 is connected with the input of driver module 204, for the automatic control signal of working according to pre-set programs output control driver module 204 when carrying out standing wave alarm test;
The input of manual control module 202 is connected with power supply VCC, and output is connected with the input of driver module 204, for operate according to user the manual control signal that driver module 204 work are controlled in output when standing wave alarm load is calibrated;
The output of driver module 204 is connected with the control end of single-pole double-throw switch (SPDT) module 203, and power end is connected with power supply VCC;
The power end of single-pole double-throw switch (SPDT) module 203 is connected with power supply VCC, first to fourth output is connected with four mismatch loads 100 respectively, for four mismatch loads 100 being connected and carrying out switching controls with the break-make of power supply VCC according to above-mentioned automatic control signal or manual control signal.
As one embodiment of the invention, automatic control module 201 is single-chip microcomputer U1, and the output of single-chip microcomputer U1 comprises the first control signal output a, the second control signal output b and the 3rd control signal output c.
As one embodiment of the invention, manual control module 202 comprises the first toggle switch 2021, the second toggle switch 2022 and the 3rd toggle switch 2023;
The first end of the first end of the first end of the first toggle switch 2021, the second toggle switch 2022 and the 3rd toggle switch 2023 is the input of manual control module 2021, and the second end of the second end of the first toggle switch 2021, the second toggle switch 2022 and the 3rd end of the 3rd toggle switch 2023 are the output of manual control module 202.
In embodiments of the present invention, the output of the first toggle switch 2021 is connected with the input of the first driver element 2041 with the first control signal output a, when carrying out standing wave alarm test, the annexation of the first toggle switch 2021 and the first driver element 2041 need to be disconnected, in like manner, when carrying out standing wave alarm test, the second toggle switch 2022 and the 3rd toggle switch 2023 disconnect with the second driver element 2042 and the 3rd driver element 2043 respectively.
As one embodiment of the invention, driver module 204 comprises the first driver element 2041, the second driver element 2042 and the 3rd driver element 2043;
The input of the input of the input of the first driver element 2041 and the second driver element 2042 and the 3rd driver element 2043 is the input of driver module 204, and the output of the output of the first driver element 2041 and the second driver element 2042 and the output of the 3rd driver element 2043 are the output of driver module 204;
The input of the first driver element 2041 is connected with the second end of the first control signal output a and the first toggle switch 2021, the input of the second driver element 2042 is connected with the second end of the second control signal output b and the second toggle switch 2022, the input of the 3rd driver element 2043 is connected with the second end of the 3rd control signal output c and the 3rd toggle switch 2023, and the power end of the first driver element 2041 and the power end of the second driver element 2042 and the power end of the 3rd driver element 2043 are connected with power supply VCC respectively.
As one embodiment of the invention, single-pole double-throw switch (SPDT) module 203 comprises the first radio-frequency (RF) switch 2031, the second radio-frequency (RF) switch 2032 and the 3rd radio-frequency (RF) switch 2033;
The power end of the first radio-frequency (RF) switch 2031 is connected with power supply VCC, the control end of the first radio-frequency (RF) switch 2031 is connected with the output of the first driver element 2041, and the first output of the first radio-frequency (RF) switch 2031 is connected with the power end of the second radio-frequency (RF) switch 2032 and the power end of the 3rd radio-frequency (RF) switch 2033 respectively with the second output;
The control end of the second radio-frequency (RF) switch 2032 is connected with the output of the second driver element 2042, the first output of the second radio-frequency (RF) switch 2032 and the second output are the first output and second output of single-pole double-throw switch (SPDT) module 203, are connected respectively with the first mismatch load 101 in four mismatch loads 100 with the second mismatch load 102;
The control end of the 3rd radio-frequency (RF) switch 2033 is connected with the output of the 3rd driver element 2043, the first output of the 3rd radio-frequency (RF) switch 2033 and the second output are the 3rd output and the 4th output of single-pole double-throw switch (SPDT) module 203, are connected respectively with the 3rd mismatch load 103 in four mismatch loads 100 with the 4th mismatch load 104.
Fig. 3 shows the circuit structure of the standing wave alarm load that the embodiment of the present invention provides, and for convenience of explanation, only lists the part relevant to the embodiment of the present invention, and details are as follows:
As one embodiment of the invention, the first driver element 2041 comprises:
The first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, a NPN triode Q1, PMOS pipe Q2, a first voltage-stabiliser tube D1;
The first end of the first resistance R 1 is the input of the first driver element 2041, the second end of the first resistance R 1 is connected with a base stage of NPN triode Q1 and the first end of the second resistance R 2, the second end ground connection of the second resistance R 2, the grid of the one collector electrode of NPN type triode Q1 and the first end of the 3rd resistance R 3 and PMOS pipe Q2 is connected, the second end of the 3rd resistance R 3 is connected with power supply VCC with the source electrode of a PMOS pipe Q2, the first end of the one PMOS pipe drain electrode of Q2 and the first end of the 4th resistance R 4 and the 5th resistance R 5 is connected, the second end of the second end of the 4th resistance R 4 and the 5th resistance R 5 is connected with the negative electrode of the first voltage-stabiliser tube D1, the emitter of the anode of the first voltage-stabiliser tube D1 and a NPN type triode Q1 is connected to ground altogether, the negative electrode of the first voltage-stabiliser tube D1 is the output of the first driver element 2041.
As one embodiment of the invention, the second driver element 2042 comprises:
The 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9, the tenth resistance R 10, the 2nd NPN triode Q3, the 2nd PMOS pipe Q4, the second voltage-stabiliser tube D2;
The first end of the 6th resistance R 6 is the input of the second driver element 2042, the second end of the 6th resistance R 6 is connected with the 2nd base stage of NPN triode Q3 and the first end of the 7th resistance R 7, the second end ground connection of the 7th resistance R 7, the grid of the 2nd collector electrode of NPN type triode Q3 and the first end of the 8th resistance R 8 and the 2nd PMOS pipe Q4 is connected, the second end of the 8th resistance R 8 is connected with power supply VCC with the source electrode of the 2nd PMOS pipe Q4, the first end of the 2nd PMOS pipe drain electrode of Q4 and the first end of the 9th resistance R 9 and the tenth resistance R 10 is connected, the second end of the second end of the 9th resistance R 9 and the tenth resistance R 10 is connected with the negative electrode of the second voltage-stabiliser tube D2, the emitter of the anode of the second voltage-stabiliser tube D2 and the 2nd NPN type triode Q3 is connected to ground altogether, the negative electrode of the second voltage-stabiliser tube D2 is the output of the second driver element 2042.
As one embodiment of the invention, the 3rd driver element 2043 comprises:
The 11 resistance R the 11, the 12 resistance R the 12, the 13 resistance R the 13, the 14 resistance R the 14, the 15 resistance R 15, the 3rd NPN triode Q5, the 3rd PMOS pipe Q6, the 3rd voltage-stabiliser tube D3;
The first end of the 11 resistance R 11 is the input of the 3rd driver element 2043, the second end of the 11 resistance R 11 is connected with the base stage of the 3rd NPN triode Q5 and the first end of the 12 resistance R 12, the second end ground connection of the 12 resistance R 12, the grid of the 11 collector electrode of NPN type triode Q5 and the first end of the 13 resistance R 13 and the 3rd PMOS pipe Q6 is connected, the second end of the 13 resistance R 13 is connected with power supply VCC with the source electrode of the 11 PMOS pipe Q6, the drain electrode of the 11 PMOS pipe Q6 is connected with the 14 first end of resistance R 14 and the first end of the 15 resistance R 15, the second end of the 14 resistance R 14 is connected with the negative electrode of the 3rd voltage-stabiliser tube D3 with the second end of the 15 resistance R 15, the emitter of the anode of the 3rd voltage-stabiliser tube D3 and the 3rd NPN type triode Q5 is connected to ground altogether, the negative electrode of the 3rd voltage-stabiliser tube D3 is the output of the 3rd driver element 2043.
Below the operation principle of the circuit structure of standing wave alarm load provided by the invention is described:
When carrying out standing wave alarm test, single-chip microcomputer U1 used the first driver element 2041 to drive the switching guide of the first radio-frequency (RF) switch 2031 to switch, supply voltage is delivered to the second rf load 2032 or the 3rd rf load 2033, when the first radio-frequency (RF) switch 2031 is directed to the second radio-frequency (RF) switch 2032 by power supply, by single-chip microcomputer U1, by the second driver element 2042, drive the switching guide of the second radio-frequency (RF) switch 2032 to switch, supply voltage is delivered to the first mismatch load 101 or the second mismatch load 102 makes its work, when the first radio-frequency (RF) switch 2031 is directed to the 3rd radio-frequency (RF) switch 2033 by power supply, by single-chip microcomputer U1, by the 3rd driver element 2043, drive the switching guide of the 3rd radio-frequency (RF) switch 2033 to switch, power delivery to the three mismatch loads 103 or the 4th mismatch load 104 are made to its work,
When carrying out standing wave alarm load calibration, by the first to the 3rd toggle switch 2021-2023, control drive circuit 204, its operation principle is the same during with standing wave alarm test, just one is automatic control, there is single-chip microcomputer U1 output control signal, be applicable to automatic test, one is manual control, is applicable to calibration.
In embodiments of the present invention, by a mismatch load being set respectively at four quadrants, and by control circuit, controlled respectively, when carrying out standing wave alarm test or calibrating, do not need mismatch load rotation to four quadrants, each quadrant can carry out standing wave alarm test and calibration, user only need to be by pre-set programs or is manually controlled and just can realize the test of four quadrant phase values or calibration, in test process, reduced personnel's operation, the test error of having saved labour and having avoided personnel's operation to bring, test accuracy rate and testing efficiency have been improved.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a standing wave alarm load, described standing wave alarm load comprises power supply, it is characterized in that, described standing wave alarm load also comprises:
Four mismatch loads, described four mismatch loads are placed in respectively four quadrants, for carrying out standing wave alarm test or respectively the phase value of described four quadrants being indicated when described standing wave alarm load is calibrated;
Control circuit, described control circuit is connected with described power supply and described four mismatch loads, for carrying out standing wave alarm test or when described standing wave alarm load is calibrated, described four mismatch loads being connected and carrying out switching controls with the break-make of described power supply.
2. standing wave alarm load as claimed in claim 1, is characterized in that, described control circuit comprises:
Automatic control module, manual control module, single-pole double-throw switch (SPDT) module and driver module;
The output of described automatic control module is connected with the input of described driver module, for export according to pre-set programs the automatic control signal of controlling described driver module work when carrying out standing wave alarm test;
The input of described manual control module is connected with described power supply, output is connected with the input of described driver module, for operate according to user the manual control signal that described driver module work is controlled in output when described standing wave alarm load is calibrated;
The output of described driver module is connected with the control end of described single-pole double-throw switch (SPDT) module, and power end is connected with described power supply;
The power end of described single-pole double-throw switch (SPDT) module is connected with described power supply, first to fourth output is connected with described four mismatch loads respectively, for described four mismatch loads being connected and carrying out switching controls with the break-make of described power supply according to described automatic control signal or described manual control signal.
3. standing wave alarm load as claimed in claim 2, is characterized in that, described automatic control module is single-chip microcomputer, and the output of described single-chip microcomputer comprises the first control signal output, the second control signal output and the 3rd control signal output.
4. standing wave alarm load as claimed in claim 3, is characterized in that, described manual control module comprises the first toggle switch, the second toggle switch and the 3rd toggle switch;
The first end of the first end of the first end of described the first toggle switch, described the second toggle switch and described the 3rd toggle switch is the input of described manual control module, the output that the 3rd end of the second end of described the first toggle switch, the second end of described the second toggle switch and described the 3rd toggle switch is described manual control module.
5. standing wave alarm load as claimed in claim 4, is characterized in that, described driver module comprises the first driver element, the second driver element and the 3rd driver element;
The input of the input of the input of described the first driver element and described the second driver element and described the 3rd driver element is the input of described driver module, the output that the output of the output of described the first driver element and described the second driver element and the output of described the 3rd driver element are described driver module;
The input of described the first driver element is connected with the second end of described the first control signal output and described the first toggle switch, the input of described the second driver element is connected with the second end of described the second control signal output and described the second toggle switch, the input of described the 3rd driver element is connected with the second end of described the 3rd control signal output and described the 3rd toggle switch, and the power end of described the first driver element and the power end of described the second driver element and the power end of described the 3rd driver element are connected with described power supply respectively.
6. standing wave alarm load as claimed in claim 5, is characterized in that, described single-pole double-throw switch (SPDT) module comprises the first radio-frequency (RF) switch, the second radio-frequency (RF) switch and the 3rd radio-frequency (RF) switch;
The power end of described the first radio-frequency (RF) switch is connected with described power supply, the control end of described the first radio-frequency (RF) switch is connected with the output of described the first driver element, and the first output of described the first radio-frequency (RF) switch is connected with the power end of described the second radio-frequency (RF) switch and the power end of described the 3rd radio-frequency (RF) switch respectively with the second output;
The control end of described the second radio-frequency (RF) switch is connected with the output of described the second driver element, the first output of described the second radio-frequency (RF) switch and the second output are the first output and second output of described single-pole double-throw switch (SPDT) module, are connected respectively with the first mismatch load in described four mismatch loads with the second mismatch load;
The control end of described the 3rd radio-frequency (RF) switch is connected with the output of described the 3rd driver element, the first output of described the 3rd radio-frequency (RF) switch and the second output are the 3rd output and the 4th output of described single-pole double-throw switch (SPDT) module, are connected respectively with the 3rd mismatch load in described four mismatch loads with the 4th mismatch load.
7. standing wave alarm load as claimed in claim 6, is characterized in that, described the first driver element comprises:
The first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, a NPN triode, a PMOS pipe, the first voltage-stabiliser tube;
The first end of described the first resistance is the input of described the first driver element, the second end of described the first resistance is connected with the first end of the base stage of a described NPN triode and described the second resistance, the second end ground connection of described the second resistance, the grid of a described collector electrode for NPN type triode and the first end of described the 3rd resistance and a described PMOS pipe is connected, the second end of described the 3rd resistance is connected with described power supply with the source electrode of a described PMOS pipe, the drain electrode of a described PMOS pipe is connected with the first end of described the 4th resistance and the first end of described the 5th resistance, the second end of the second end of described the 4th resistance and described the 5th resistance is connected with the negative electrode of described the first voltage-stabiliser tube, the emitter of the anode of described the first voltage-stabiliser tube and a described NPN type triode is connected to ground altogether, the negative electrode of described the first voltage-stabiliser tube is the output of described the first driver element.
8. standing wave alarm load as claimed in claim 6, is characterized in that, described the second driver element comprises:
The 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the 2nd NPN triode, the 2nd PMOS pipe, the second voltage-stabiliser tube;
The first end of described the 6th resistance is the input of described the second driver element, the second end of described the 6th resistance is connected with the first end of the base stage of described the 2nd NPN triode and described the 7th resistance, the second end ground connection of described the 7th resistance, the grid of described the 2nd collector electrode of NPN type triode and the first end of described the 8th resistance and described the 2nd PMOS pipe is connected, the second end of described the 8th resistance is connected with described power supply with the source electrode of described the 2nd PMOS pipe, the drain electrode of described the 2nd PMOS pipe is connected with the first end of described the 9th resistance and the first end of described the tenth resistance, the second end of the second end of described the 9th resistance and described the tenth resistance is connected with the negative electrode of described the second voltage-stabiliser tube, the emitter of the anode of described the second voltage-stabiliser tube and described the 2nd NPN type triode is connected to ground altogether, the negative electrode of described the second voltage-stabiliser tube is the output of described the second driver element.
9. standing wave alarm load as claimed in claim 6, is characterized in that, described the 3rd driver element comprises:
The 11 resistance, the 12 resistance, the 13 resistance, the 14 resistance, the 15 resistance, the 3rd NPN triode, the 3rd PMOS pipe, the 3rd voltage-stabiliser tube;
The first end of described the 11 resistance is the input of described the 3rd driver element, the second end of described the 11 resistance is connected with described the 3rd base stage of NPN triode and the first end of described the 12 resistance, the second end ground connection of described the 12 resistance, the collector electrode of described the 11 NPN type triode is connected with the first end of described the 13 resistance and the grid of described the 3rd PMOS pipe, the second end of described the 13 resistance and the source electrode of described the 11 PMOS pipe are connected with described power supply, the drain electrode of described the 11 PMOS pipe is connected with described the 14 first end of resistance and the first end of described the 15 resistance, the second end of described the 14 resistance is connected with the negative electrode of described the 3rd voltage-stabiliser tube with the second end of described the 15 resistance, the emitter of the anode of described the 3rd voltage-stabiliser tube and described the 3rd NPN type triode is connected to ground altogether, the negative electrode of described the 3rd voltage-stabiliser tube is the output of described the 3rd driver element.
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| CN113498097A (en) * | 2020-04-01 | 2021-10-12 | 成都鼎桥通信技术有限公司 | Standing wave warning method and equipment suitable for small base station piggyback antenna scene |
| CN113765601A (en) * | 2021-09-18 | 2021-12-07 | 南京熊猫汉达科技有限公司 | Short-wave transmitter standing wave detection calibration device and method |
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| CN105652091B (en) * | 2015-12-29 | 2018-12-04 | 重庆微标科技股份有限公司 | RFID product standing-wave ratio Auto-Test System |
| CN113498097A (en) * | 2020-04-01 | 2021-10-12 | 成都鼎桥通信技术有限公司 | Standing wave warning method and equipment suitable for small base station piggyback antenna scene |
| CN113498097B (en) * | 2020-04-01 | 2023-04-14 | 成都鼎桥通信技术有限公司 | Standing wave warning method and equipment suitable for small base station piggyback antenna scene |
| CN113765601A (en) * | 2021-09-18 | 2021-12-07 | 南京熊猫汉达科技有限公司 | Short-wave transmitter standing wave detection calibration device and method |
| CN113765601B (en) * | 2021-09-18 | 2024-03-26 | 中电防务科技有限公司 | Standing wave detection calibration device and method for short wave transmitter |
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| CN103618579B (en) | 2015-08-26 |
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