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A system and method for detecting a voltage standing wave ratio at an output terminal

A technology of output terminal voltage and output terminal, which is applied in the microwave field, can solve problems such as large errors, and achieve the effects of reducing use, improving accuracy, and reducing errors

Inactive Publication Date: 2019-01-22
CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST
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Problems solved by technology

[0017] The purpose of the present invention is to provide a system and method for detecting the voltage standing wave ratio of the output terminal, which is used to solve the problem in the above-mentioned prior art that the voltage standing wave ratio of the output terminal under the non-working state is used to approximate the output terminal voltage under the working state. The technical problem of large error caused by standing wave ratio

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  • A system and method for detecting a voltage standing wave ratio at an output terminal

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[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0029] image 3 It is a model schematic diagram of an embodiment of the system for detecting the voltage standing wave ratio of the output terminal of the present invention.

[0030] Such as image 3 As shown, the excitation source 301 produces a 1 signal, used to push the DUT 302 to make it in working condition, meanwhile, the test source 303 provides a reverse input to the amplifier 304 and amplifies the signal a 2 , the reflection signal b generated by the output terminal of the DUT 302 2 is detected by the receiver 305, by a 2 and b 2 The output reflection coefficient S of the DUT can be calculated 22 , the calculation formula is:

[0031]

[0032] Thus according to the output reflection coefficient S 22 The ...

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Abstract

The invention provides a system and method for detecting a voltage standing wave ratio at an output terminal. A system for detecting a voltage standing wave ratio of an output terminal includes a vector network analyzer configured to provide an excitation signal to an input terminal of a component to be tested so as to enable that component to be tested to be in an operating state, providing a test signal to an output terminal of the part under test so that the test signal is reflected by the output terminal of the part under test to generate a reflected signal; and receiving the reflected signal and the test signal to obtain an output voltage standing wave ratio of the part under test according to the reflected signal and the test signal. The invention simultaneously provides an excitation signal and a reflection signal for the part to be tested by a vector network analyzer to detect the voltage standing wave ratio of the output terminal of the part to be tested, so that the accuracyof the voltage standing wave ratio detection of the output terminal of the part to be tested under the working state can be improved.

Description

technical field [0001] The invention relates to the field of microwave technology, in particular to a system and method for detecting the voltage standing wave ratio of an output terminal. Background technique [0002] With the development of microwave devices, high-power microwave devices have been widely used in modern wireless communication systems due to their large output power and wide signal coverage. Among a series of parameters of high-power microwave devices, voltage standing wave ratio is a more important technical index. [0003] In the past research, the voltage standing wave ratio of the input terminal of the high-power microwave device under the working state has been relatively mature. After being transmitted to the output terminal of the high-power microwave device, the reflected signal will be submerged in the power transmitted forward, so the voltage standing wave ratio of the output terminal of the high-power microwave device is very difficult to test in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00G01R27/06
CPCG01R27/06H04B17/00
Inventor 王铁羊宋芳芳恩云飞黄云
Owner CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST
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