CN202043115U - Noise immunity test system capable of automatically switching among power amplifiers - Google Patents
Noise immunity test system capable of automatically switching among power amplifiers Download PDFInfo
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- CN202043115U CN202043115U CN2011200453982U CN201120045398U CN202043115U CN 202043115 U CN202043115 U CN 202043115U CN 2011200453982 U CN2011200453982 U CN 2011200453982U CN 201120045398 U CN201120045398 U CN 201120045398U CN 202043115 U CN202043115 U CN 202043115U
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- power amplifier
- microwave switch
- frequency power
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- automatic microwave
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 230000036039 immunity Effects 0.000 title claims abstract description 15
- 230000005672 electromagnetic field Effects 0.000 abstract description 10
- 230000005855 radiation Effects 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
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Abstract
The utility model relates to a noise immunity test system capable of automatically switching among power amplifiers, which is improved based on a conventional radio frequency electromagnetic field radiation noise immunity test system. The improved test system is characterized in that a high frequency power amplifier and two automatic microwave switches are additionally arranged, and can not only finish a low-frequency radio frequency electromagnetic field radiation test, but also meet the high-frequency test requirements additionally stated in a new standard.
Description
Technical field
The utility model relates to a kind of immunity to interference test macro with power amplifier automatic switching function.
Background technology
In recent years, the use of radio telephone and other radio transmitting apparatus significantly increases, and its frequency of utilization is between 0.8GHz to 2GHz.What many equipment uses were wherein arranged is non-constant envelope modulation technology (as TDMA).The frequency range of the new world and the radio frequency electromagnetic field radiation immunity experiment of national standard was increased to 80-2000MHz by former 80-1000MHz.The raising of test frequency has increased the requirement to the performance index of testing equipment.Old equipment can not satisfy, changes new equipment, and cost is too big again, how to upgrade on the basis of existing radio frequency electromagnetic field radiation immunity test macro, and reaches the requirement of new standard, has become a urgent problem.
Existing radio frequency electromagnetic field radiation immunity test macro is made up of controller, signal source, low-frequency power amplifier, GTEM shielded enclosure, and its controller adopts computer; Signal source adopts radio-frequency signal generator, and its model is 2023B, and frequency range is 9 GHZ-2 GHZ.
The utility model content
Technical problem to be solved in the utility model provides a kind of immunity to interference test macro with power amplifier automatic switching function.
The technical scheme that its technical problem that solves the utility model adopts:
The utility model is to improve to form on the basis of existing radio frequency electromagnetic field radiation immunity test macro, its main improvement is to have increased high frequency power amplifier and two automatic microwave switches, test macro after the improvement can be finished the test of low-frequency range radio frequency electromagnetic field radiation, can satisfy the test requirements document of the high band that increases in the new standard again.
Concrete technical scheme of the present utility model is as follows:
The utility model comprises controller, signal source, low-frequency power amplifier and GTEM shielded enclosure, it is characterized in that also comprising high frequency power amplifier, the first automatic microwave switch and the second automatic microwave switch; The output of described controller connects the input of the first automatic microwave switch through signal source, another output of described controller connects the control end of first, second automatic microwave switch respectively, two outputs of the described first automatic microwave switch connect the input of described low-frequency power amplifier and high frequency power amplifier respectively, the output of described low-frequency power amplifier and high frequency power amplifier connects the respective input of the second automatic microwave switch respectively, the signal input part of the output termination GTEM shielded enclosure of the second automatic microwave switch.
Operation principle of the present utility model is as follows:
The utility model is increasing on the high frequency power amplifier basis, adopting full-automatic microwave switch to carry out power amplifier switches, when test frequency is in low-frequency range, controller control selects low-frequency power amplifier to test, after test frequency enters high band, controller control automatic microwave switch makes it automatically switch to high frequency power amplifier, finishes the radio frequency electromagnetic field radiation immunity experiment of high band.
The beneficial effects of the utility model are to adopt the automatic microwave switch to the control of automaticallying switch of the power amplifier of radio frequency electromagnetic field radiation test, adopt low-frequency power amplifier during low-frequency range, automatically switch to high frequency power amplifier during high band, can satisfy the up-to-date world and national standard about the demand of radio frequency electromagnetic field radiation immunity to the high band test.
Description of drawings
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is the operational flowchart of field-strength standard step;
Fig. 3 is the operational flowchart of testing of equipment step.
Embodiment
By embodiment shown in Figure 1 as can be known, it comprises controller, signal source, low-frequency power amplifier and GTEM shielded enclosure, it is characterized in that also comprising high frequency power amplifier, the first automatic microwave switch and the second automatic microwave switch; The output of described controller connects the input of the first automatic microwave switch through signal source, another output of described controller connects the control end of first, second automatic microwave switch respectively, two outputs of the described first automatic microwave switch connect the input of described low-frequency power amplifier and high frequency power amplifier respectively, the output of described low-frequency power amplifier and high frequency power amplifier connects the respective input of the second automatic microwave switch respectively, the signal input part of the output termination GTEM shielded enclosure of the second automatic microwave switch.
The model of described high frequency power amplifier is 5022A, and its frequency range is 0.8GHZ-2 GHZ.
The model of described first, second automatic microwave switch is MS-12-F-SMA.
Operating procedure of the present utility model is divided into field intensity calibration steps and testing of equipment step.
(1) field intensity calibration steps: the field intensity monitor is put into the GTEM shielded enclosure, and be connected with controller, form closed loop, carry out the preceding field intensity calibration of equipment formal test with optical fiber.Calibration finishes, and preserves calibration file, uses for official testing.Operational flowchart is seen Fig. 2.
(2) testing of equipment step: at first whether the checkout system wiring is correct; Put into again and be subjected to examination equipment, shut shield door; Opening device successively then, firing test Auto-Test System program is called in calibration file, begins test, and in the process of the test, controller can by control automatic microwave switch, be selected low, high frequency power amplifier automatically according to test frequency; Whether after the off-test, closing test equipment takes out the examination equipment that is subjected to successively, check to be subjected to examination equipment intact.Operational flowchart is seen Fig. 3.
Claims (3)
1. immunity to interference test macro with power amplifier automatic switching function, comprise controller, signal source, low-frequency power amplifier and GTEM shielded enclosure, it is characterized in that also comprising high frequency power amplifier, the first automatic microwave switch and the second automatic microwave switch; The output of described controller connects the input of the first automatic microwave switch through signal source, another output of described controller connects the control end of first, second automatic microwave switch respectively, two outputs of the described first automatic microwave switch connect the input of described low-frequency power amplifier and high frequency power amplifier respectively, the output of described low-frequency power amplifier and high frequency power amplifier connects the respective input of the second automatic microwave switch respectively, the signal input part of the output termination GTEM shielded enclosure of the second automatic microwave switch.
2. the immunity to interference test macro with power amplifier automatic switching function according to claim 1, the model that it is characterized in that described high frequency power amplifier is 5022A, its frequency range is 0.8GHZ-2 GHZ.
3. the immunity to interference test macro with power amplifier automatic switching function according to claim 2, the model that it is characterized in that described first, second automatic microwave switch is MS-12-F-SMA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200453982U CN202043115U (en) | 2011-02-23 | 2011-02-23 | Noise immunity test system capable of automatically switching among power amplifiers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200453982U CN202043115U (en) | 2011-02-23 | 2011-02-23 | Noise immunity test system capable of automatically switching among power amplifiers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202043115U true CN202043115U (en) | 2011-11-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200453982U Expired - Fee Related CN202043115U (en) | 2011-02-23 | 2011-02-23 | Noise immunity test system capable of automatically switching among power amplifiers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202043115U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535806A (en) * | 2014-10-31 | 2015-04-22 | 国家电网公司 | Automatic switching device and system of power amplifiers |
| CN106371005A (en) * | 2016-08-17 | 2017-02-01 | 中国电子科技集团公司第四十研究所 | Switch matrix based microwave component switch response time measuring device and method |
| CN110426563A (en) * | 2019-08-07 | 2019-11-08 | 广州立讯检测有限公司 | A kind of new automobile electronic component radio frequency electromagnetic field radiation immunity test macro |
| CN113777421A (en) * | 2021-08-12 | 2021-12-10 | 西安交通大学 | Power line low-frequency radiation immunity testing system and method based on crosstalk injection |
-
2011
- 2011-02-23 CN CN2011200453982U patent/CN202043115U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535806A (en) * | 2014-10-31 | 2015-04-22 | 国家电网公司 | Automatic switching device and system of power amplifiers |
| CN106371005A (en) * | 2016-08-17 | 2017-02-01 | 中国电子科技集团公司第四十研究所 | Switch matrix based microwave component switch response time measuring device and method |
| CN110426563A (en) * | 2019-08-07 | 2019-11-08 | 广州立讯检测有限公司 | A kind of new automobile electronic component radio frequency electromagnetic field radiation immunity test macro |
| CN113777421A (en) * | 2021-08-12 | 2021-12-10 | 西安交通大学 | Power line low-frequency radiation immunity testing system and method based on crosstalk injection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HEBEI ELECTRIC POWER CORPORATION ELECTRIC POWER RE Free format text: FORMER OWNER: HEBEI ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20130327 Owner name: STATE ELECTRIC NET CROP. HEBEI ELECTRIC POWER CONS Effective date: 20130327 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130327 Address after: 050021 Shijiazhuang Province, Yuhua Province Sports street, South Street, No. 238, No. Patentee after: Electric Power Research Institute of Hebei Electric Power Corporation Patentee after: State Grid Corporation of China Patentee after: Hebei Electric Power Construction & Adjustment Research Institute Address before: 050021 No. 238 South Sports street, Hebei, Shijiazhuang Patentee before: Hebei Electric Power Research Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20160223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |