Port Identification Method of Electronic Calibration Unit Based on Impedance Transformation
A technology of electronic calibration parts and port identification, which is applied in the field of testing, can solve problems such as large deviation of measured values and judgment failure, and achieve the effect of improving accuracy and matching relationship
Active Publication Date: 2019-07-02
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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The errors caused by these two items will make the measured values of some standards deviate greatly from the calibration values, which will easily cause judgment failure
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[0051] 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.
[0052] In the existing technology, the difference between the standard measurement value and the calibration value is directly made, which cannot eliminate system errors and cable errors, and may easily cause judgment failure.
[0053] The present invention proposes a method for identifying the port of an electronic calibration component based on impedance transformation. Since there are multiple standards in the electronic calibration component, the measured v...
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The present invention proposes a method for identifying the port of an electronic calibration component based on impedance transformation, using the first standard to correct the measured value of the remaining standard, and then comparing the measured value with the calibration value, and then identifying the port of the electronic calibration component; using The current port of the network instrument performs a circular judgment on each port of the electronic calibration component. If the difference between the impedance value calculated by all standards of the calibration component port and the calibrated impedance value is within the error range, then it is determined that the calibration component port is connected to the network instrument; if If not, continue to judge the standard values of the next port of the electronic calibration module. The method of the invention improves the matching relationship between the standard measurement value and the calibration value, and improves the accuracy of port identification.
Description
technical field [0001] The invention relates to the technical field of testing, in particular to a method for identifying a port of an electronic calibration component based on impedance transformation. Background technique [0002] Using electronic calibration parts to calibrate the vector network analyzer can simplify the calibration process, improve the calibration speed, and ensure good calibration accuracy. When using the electronic calibration module for calibration, it is necessary to configure its corresponding relationship with the port of the network instrument. [0003] Because the network instrument port can only generate radio frequency / microwave signals, the currently connected electronic calibration module port cannot be identified by identification and other information, so the reflection parameters of each standard of the electronic calibration module can only be obtained through the network instrument. Since there are many types of electronic calibration p...
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IPC IPC(8): G01R35/00
CPCG01R35/005
Inventor 庄志远郭永瑞李树彪袁国平刘丹李明太赵立军蔡洪坤
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP