Fast calibration method of microwave high power passive distributor

A calibration method and high-power technology, applied in the direction of instruments, measuring devices, measuring electrical variables, etc., can solve the problems of large amount of data, time-consuming and computing resources, affecting the speed and efficiency of testing, and achieve high-precision and rapid calibration , taking into account the effect of precision and efficiency

Inactive Publication Date: 2014-07-09
XIDIAN UNIV
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the diaphragm of the adjuster is to be measured at each moving position, the amount of data to be measured is extremely large, and it will also consume a lot of time and computing resources, which will affect the speed and efficiency of the test. Therefore, it is necessary to study Fast Calibration Method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fast calibration method of microwave high power passive distributor
  • Fast calibration method of microwave high power passive distributor
  • Fast calibration method of microwave high power passive distributor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Such as figure 1 , image 3 As shown, the quick calibration method of microwave high-power passive adjuster includes the following steps:

[0041] 1) Select the type of use, and determine the adjuster 5 to be calibrated as a source or load adjuster to determine the selection of the initial zero position of the adjuster. The initial zero position is selected at the end close to the DUT, such as the source adjuster selection Two ports (S22), while the load leveler is one port (S11);

[0042] 2) Determine the calibration frequency f, the number of points to be measured in the horizontal direction m, and the number of points to be measured in the vertical direction n;

[0043] 3) Make sure that the diaphragm of the adjuster 5 is in the initial zero position in the horizontal and vertical directions;

[0044] 4) After the vector network analyzer 1 has fully warmed up and stabilized, according to the determined calibration frequency, connect the first coaxial waveguide con...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a fast calibration method of a microwave high power passive distributor. On the basis that the distributor is selected, the design frequency is determined, the number of positions in which an admittance slider needs to walk in the x direction and the y direction is determined; firstly, a limited number of positions of given frequency points are measured, and the changing rule of scattering parameters of the distributor is acquired along with the movement of the admittance slider in the x direction and the y direction; then, on the basis of test data, a mathematical function of changes of magnitudes and phase positions of scattering parameters along with positions is acquired through fitting with a data fitting method, on the basis of the mathematical function, scattering parameter data in other positions are derived with a value calculating method, a least square method is selected as the value calculating method, and a calibration table is established and used for subsequent testing. According to the method, testing accuracy and testing efficiency can be both taken into consideration, and high-accuracy fast calibration is achieved.

Description

technical field [0001] The invention relates to a microwave high-power passive adjuster technology, in particular to a rapid calibration method for a microwave high-power passive adjuster. Background technique [0002] The load-pull method is an impedance-dependent measurement technique that uses an automatic adjuster to adjust the source and load impedances, reflecting the measurement of the frequency-dependent load impedance. The principle of this measurement technique is to measure parameters such as input, output, and power-added efficiency by changing the source impedance or load impedance under the condition of a given input power, and record the value of the corresponding source impedance or load impedance at the same time. After appropriate data processing, the optimal source impedance and load impedance required under the state of maximum output power or maximum power-added efficiency are obtained, so as to obtain the optimal design scheme of the input / output matchi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00
Inventor 孙璐王家礼詹劲松程鹏周春阳王晓龙
Owner XIDIAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap