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A Calibration Method for Measuring Mixer Group Delay Using Electronic Calibration Module

An electronic calibration piece and calibration method technology, applied in the field of testing, can solve the problems of limited measurement accuracy and complicated connection, achieve the effects of simple operation, ensure calibration accuracy, and reduce connectivity errors

Active Publication Date: 2020-12-18
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the existing technical solutions for measuring the group delay of mixers are complex in connection, require multiple additional mixers, and have limited measurement accuracy

Method used

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  • A Calibration Method for Measuring Mixer Group Delay Using Electronic Calibration Module
  • A Calibration Method for Measuring Mixer Group Delay Using Electronic Calibration Module
  • A Calibration Method for Measuring Mixer Group Delay Using Electronic Calibration Module

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] The existing technical solutions for measuring the group delay of mixers have complex connections, require multiple additional mixers, and have limited measurement accuracy. The method of the present invention uses the electronic calibration unit and the vector network analyzer, and the combination of the vector network analyzer and the electronic calibration unit with fast and simple connection operation realizes the absolute measurement of the phase of...

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Abstract

The present invention proposes a calibration method that a vector network analyzer utilizes an electronic calibration unit to measure the group delay of a mixer, comprising the following steps: step (1), two inputs of the vector network analyzer corresponding to the tested mixer, Connect the two-port electronic calibration unit between the output ports for calibration; step (2), connect the mixer to the input port, and connect the electronic calibration unit at the output port of the mixer for calibration; step (3), remove the electronic calibration unit, Connect the output port of the mixer directly to the port of the vector network analyzer for calibration. In the method of the present invention, the operation of the user is very simple, which embodies the characteristics of automation and intelligence of the calibration method, thereby also reducing the connection error introduced by the user's repeated connection of the standard parts, so the maximum guarantee of the technology. Calibration accuracy.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to a calibration method for a vector network analyzer to measure the group time delay of a mixer by using an electronic calibration component. Background technique [0002] Mixers and frequency converters play an important role in military industry, scientific research, production, testing, etc., and are the core components of radar, satellite and radio communication systems. With the diversification of signal formats and the rapid development of complex modulation methods, the system has higher and higher requirements for the frequency phase and phase linearity of frequency converter devices. Two important indicators are frequency conversion loss flatness and group delay flatness. [0003] For the absolute group delay of frequency converter devices, the commonly used method is the three-mixer method. The three-mixer method is implemented by making three measurements on three pairs...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/11H04B17/21
CPCH04B17/11H04B17/21
Inventor 郭永瑞李树彪庄志远赵立军刘丹李明太
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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