Device and method for realizing the function of spectrum analysis on vector network analyzer

A technology of vector network analysis and spectrum analysis, applied in the field of devices with spectrum analysis function, can solve the problems of expensive microwave measurement instruments, time-consuming and labor-intensive, etc., and achieve the effects of reducing measurement time, simplifying complexity, and highly consistent

Inactive Publication Date: 2017-09-08
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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Problems solved by technology

[0004] The traditional "network analyzer + signal source + spectrum analyzer" solution needs to connect the DUT multiple times between different

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  • Device and method for realizing the function of spectrum analysis on vector network analyzer
  • Device and method for realizing the function of spectrum analysis on vector network analyzer

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[0047] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0048] At present, the network parameter measurement and spectrum measurement of the DUT can only be realized by using the "network analyzer + signal source + spectrum analyzer" solution. It is necessary to connect the DUT multiple times between different instruments. Time-consuming and labor-intensive, and need to buy multiple expensive microwave measuring instruments.

[0049] The present invention provides a device and method for realiz...

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Abstract

The invention proposes a device for realizing the function of spectrum analysis on a vector network analyzer, comprising an intermediate frequency regulation unit, an analog-to-digital conversion unit, a digital signal processing unit, and a programmable time clock generating unit. The intermediate frequency regulation unit enlarges and filters the intermediate frequency signal that enters the device; the analog-to-digital conversion unit performs analog-to-digital conversion to the regulated intermediate frequency signal so as to obtain a high-speed serial sampling signal; the digital signal processing unit carries out serial-parallel conversion to the sampling signal and then performs digital lowering frequency conversion, digital filtering, and frequency spectrum analyzing. The programmable time clock generating unit is able to provide a programmable differential sampling clock to the analog-to-digital conversion unit. The device and the method of the invention requires only one time connection to a single vector network analyzer by the user to realize the high performance network parameter measurement and frequency spectrum measurement to a tested component, which simplifies the complexity of measurement operations by the user and shortens the measurement time.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to a device for realizing the spectrum analysis function on a vector network analyzer, and also to a method for realizing the spectrum analysis function on the vector network analyzer. Background technique [0002] During the R&D and production of active devices such as amplifiers, mixers, and frequency converters, engineers not only need to measure network parameters such as S-parameters, gain, return loss, and group delay, but also because most active devices are It is non-linear. In addition to generating useful frequency signals, they often generate additional harmful frequencies. These harmful frequencies will affect the performance indicators of the entire system, such as dynamic range and sensitivity. The output spectrum is measured to determine the cause of unwanted frequencies and eliminate them. [0003] At present, the method of network parameter measurement and spectrum...

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Application Information

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IPC IPC(8): G01R23/167G01R27/28
CPCG01R27/28G01R23/167
Inventor 杨明飞年夫顺梁胜利袁国平刘丹李明太赵立军庄志远
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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