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Nonlinear vector network analyzer measuring method with two-phase reference and device

A technology of vector network analysis and phase reference, which is applied in the measurement field of nonlinear vector network analyzers, can solve the problems affecting the application range of nonlinear vector network analyzers and the effectiveness of the measurement of the measured object, and achieve the effect of expanding the application range

Active Publication Date: 2018-04-06
NAT INST OF METROLOGY CHINA
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Problems solved by technology

[0005] In view of this, the present invention provides a non-linear vector network analyzer measurement method and device with dual-phase reference, the main purpose is to solve the current phase spectrum measurement of nonlinear vector network analyzer using only one phase reference signal, which will affect The Applicable Scope of Nonlinear Vector Network Analyzer and the Effectiveness of Measuring Complex Measured Objects

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  • Nonlinear vector network analyzer measuring method with two-phase reference and device

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[0032] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0033] The embodiment of the present invention provides a dual-phase reference nonlinear vector network analyzer measurement method, which can improve the phase spectrum measurement accuracy of the nonlinear vector network analyzer, such as figure 2 As shown, the method includes:

[0034] 101. Acquire the sub-frequency bands divided into the frequency band under test and the overlapping frequency points corresponding to the sub-fr...

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Abstract

The invention discloses a nonlinear vector network analyzer measuring method with two-phase reference and device, which relate to the technical field of radiofrequency microwave signal measurement andcan improve the measurement ability of the nonlinear vector network analyzer towards a measured object with complicated spectrum components. The method comprises steps: measured sub frequency bands divided by a measured frequency band and overlapped frequency points corresponding to the measured sub frequency bands are acquired; first phase reference signals with the spectrum components coveringthe measured sub frequency bands are generated; a first phase difference between the first phase reference signals and pre-generated second phase reference signals in the overlapped frequency points is measured; according to the first phase difference, a second phase difference set between the measured signals and the first phase reference signals in the measured frequency points in the measured sub frequency bands is measured; and the measured sub frequency bands covered by the first phase reference signals are changed, measurement on all measured sub frequency bands is completed, and resultsare combined as a phase spectrum measurement result of the nonlinear vector network analyzer.

Description

technical field [0001] The invention relates to the technical field of radio frequency microwave signal measurement, in particular to a method and device for measuring a nonlinear vector network analyzer with dual-phase reference. Background technique [0002] Nonlinear Vector Network Analyzer (NVNA) is an instrument for measuring and characterizing the nonlinear behavior of radio frequency microwave devices. It introduces a phase reference signal with multiple frequency components, and uses the phase difference measurement between the signal under test and the phase reference signal frequency by point to realize the phase spectrum measurement of the complex signal under test. [0003] At present, the phase spectrum measurement methods of nonlinear vector network analyzers all use "single" phase reference, that is, only one phase reference signal works, and its spectral components need to cover all frequency points under test at the same time. For example, if figure 1 As s...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R23/16
CPCG01R23/16
Inventor 张亦弛何昭黄见明郭晓涛张子龙聂梅宁杨瑷宁王立峰
Owner NAT INST OF METROLOGY CHINA
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