CN202889354U - System for testing power tolerance of passive device - Google Patents
System for testing power tolerance of passive device Download PDFInfo
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- CN202889354U CN202889354U CN2012204896490U CN201220489649U CN202889354U CN 202889354 U CN202889354 U CN 202889354U CN 2012204896490 U CN2012204896490 U CN 2012204896490U CN 201220489649 U CN201220489649 U CN 201220489649U CN 202889354 U CN202889354 U CN 202889354U
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Abstract
The utility model relates to a system for testing the power tolerance of a passive device, comprising a signal generator, wherein the signal generator is connected with a power amplifier, the power amplifier is connected with a high-power duplexer, the high-power duplexer is connected with a test port and a detection port, the test port is connected with DUT, and the detection port is connected with a frequency spectrograph. The system for testing the power tolerance of a passive device has the beneficial effects of determining the high-peak value/mean value power performance of a device through timely detecting whether the performance of a device to deteriorate or not, thereby ensuring the communication capability and the conversation quality requirements of the system, and thoroughly reducing system interference.
Description
Technical field
The utility model relates to communication technical field, especially a kind of system of passive device power margin test.
Background technology
Along with the increase of communication network capacity, passive device receives increasing concern as the pith in the telecommunication network.In multi channel wireless transmitting system, radio-frequency (RF) energy transmission is so that the heat energy that resistance and dielectric loss consumption produce, thereby can cause aging, the distortion of device and the voltage flying fox phenomenon that might occur.Arcing phenomena is because the device power capacity is not enough, and particularly the ability to bear to peak power is not enough, produces abnormal heating, spark phenomenon, thereby causes the rising of making an uproar at the bottom of the system, causes system interference.
To be the examination passive device can not cause that for the caused heat energy of maximum input signal the maximum that problem is disturbed bears limit for power margin test.Be mainly used in checking the important detection technique of the Design and manufacture of passive device, after power amplifier amplified, whether device performance worsened (mainly checking the standing wave performance) by radiofrequency signal for it, differentiated the anti-high-peak power of device/average power performance quality.Development along with mobile communication, what existing network was on the increase is high-power so that the power load that passive device bears is more and more heavier, therefore the probability that produces system interference constantly promotes, for the communication capacity of safeguards system and the demand of speech quality, reduce system interference from the source, be necessary passive device is carried out the power margin test.
Summary of the invention
The utility model will solve the shortcoming of above-mentioned prior art, and a kind of passive device power margin test that can be applied in the communication networks such as antenna, duplexer, mixer, power splitter, directional coupler, 3dB electric bridge, cable, load is provided.
The utility model solves the technical scheme that its technical problem adopts: the system of this passive device power margin test, comprise signal generator, signal generator connects power amplifier, power amplifier connects high-power duplexer, high-power duplexer connecting test port and detection port, test port connects DUT, and detection port connects frequency spectrograph.
As preferably, described power amplifier connects computer by RCI.
As preferably, described power amplifier comprises and amplifies buffer stage, interstage amplifier section, final stage power-amplifier stage, power synthesis module, signal isolation module and signal deteching circuit.
The effect that the utility model is useful is: the utility model can be in time by checking whether device performance worsens, differentiate the anti-high-peak power of device/average power performance quality, thereby the demand of the communication capacity of safeguards system and speech quality reduces system interference from the source.
Description of drawings
Fig. 1 is power margin Test Networking figure;
Fig. 2 is the schematic diagram of power margin test macro;
Description of reference numerals: signal generator 101, power amplifier 102, high-power duplexer 103, test port 104, detection port 105, RCI 106, DUT107, frequency spectrograph 108, computer 109.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Embodiment: such as Fig. 1,2, the system of this passive device power margin test, comprise signal generator 101, signal generator 101 connects power amplifier 102, power amplifier 102 connects high-power duplexer 103, high-power duplexer 103 connecting test port ones 04 and detection port 105, and test port 104 connects DUT107, detection port 105 connects frequency spectrograph 108, and power amplifier 102 connects computer 109 by RCI 106.
Wherein, power amplifier 102 comprises amplification buffer stage, interstage amplifier section, final stage power-amplifier stage, power synthesis module, signal isolation module, the parts such as signal deteching circuit, when alarm appearred in power amplifier, power amplifier can turn-off fast, also can feed back to signal source, the output of shutoff signal.Radiofrequency signal of the present utility model flows to: signal generator 101 → power amplifier 102 → high-power duplexer 103 → test port 104.
The utility model has adopted following key technology:
One, broadband technology: for guaranteeing overall efficiency, final stage power amplifier is according to the test frequency segment design, and all parts all adopt broadband design on the whole path;
Two, fast protection circuit design: the fast protection circuit of power amplifier need to find balance point between protection sensitivity and false alarm probability, avoid signal itself to cause the protective circuit misoperation, protects again the power saltus step that power tube is damaged.Research and choosing of test and circuit parameter to signal characteristic are the keys of the technology;
Three, the heat sink conception of optimizing: adopt fluid and thermodynamics simulation software, the final stage power amplifier radiator structure of key is carried out design of Simulation, optimize the radiator parameter, preferred fan characteristic is to reach the fan life of better radiating efficiency and Geng Gao.
Four, the design of efficient high power output linearity amplifier;
Five, hommization Long-distance Control design: can pass through mobile phone or computer wireless connecting test system, realize remote wireless control, control and measuring state and execution test can observing system running status and testing times by the interface.
Six, High Reliability Design technology: for improving the reliability of system, the system in setting time of avoiding breaks down, and by reliability prediction, the redundant methods such as design, thermal design, failure analysis of processing, drift about, improves the reliability of product.
In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.
Claims (3)
1. the system of passive device power margin test, comprise signal generator (101), it is characterized in that: signal generator (101) connects power amplifier (102), power amplifier (102) connects high-power duplexer (103), high-power duplexer (103) connecting test port (104) and detection port (105), test port (104) connects DUT(107), detection port (105) connects frequency spectrograph (108).
2. the system of passive device power margin according to claim 1 test, it is characterized in that: described power amplifier (102) connects computer (109) by RCI (106).
3. the system of passive device power margin according to claim 1 test, it is characterized in that: described power amplifier (102) comprises amplification buffer stage, interstage amplifier section, final stage power-amplifier stage, power synthesis module, signal isolation module and signal deteching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204896490U CN202889354U (en) | 2012-09-24 | 2012-09-24 | System for testing power tolerance of passive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204896490U CN202889354U (en) | 2012-09-24 | 2012-09-24 | System for testing power tolerance of passive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202889354U true CN202889354U (en) | 2013-04-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204896490U Expired - Lifetime CN202889354U (en) | 2012-09-24 | 2012-09-24 | System for testing power tolerance of passive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202889354U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301049A (en) * | 2014-10-16 | 2015-01-21 | 国家电网公司 | Dual-channel passive device power tolerance testing system |
| CN105137243A (en) * | 2015-09-10 | 2015-12-09 | 西安电子科技大学 | Method for measuring degeneration power threshold value and damage power threshold value of low noise amplifier |
-
2012
- 2012-09-24 CN CN2012204896490U patent/CN202889354U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301049A (en) * | 2014-10-16 | 2015-01-21 | 国家电网公司 | Dual-channel passive device power tolerance testing system |
| CN105137243A (en) * | 2015-09-10 | 2015-12-09 | 西安电子科技大学 | Method for measuring degeneration power threshold value and damage power threshold value of low noise amplifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |
|
| CX01 | Expiry of patent term |