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A Measuring Method of High Power Microwave Polarization Parameters

A high-power microwave and polarization parameter technology, applied in the direction of electromagnetic field characteristics, can solve the problem of high microwave power, and achieve the effect of simple method and easy operation

Active Publication Date: 2022-03-22
SOUTHWESTERN INST OF PHYSICS
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Due to the high microwave power, there is currently no method to directly measure the polarization parameters, but it is necessary to test the microwave polarization characteristics under high power conditions, so a method that can measure the microwave polarization characteristics under high power conditions is needed method of measurement

Method used

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  • A Measuring Method of High Power Microwave Polarization Parameters
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  • A Measuring Method of High Power Microwave Polarization Parameters

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Embodiment Construction

[0035] The present invention will be further described below by means of the accompanying drawings and specific embodiments.

[0036] In the electron cyclotron resonance heating system, the main waveguide is a circular waveguide, and the microwave output by the electron cyclotron is transmitted to the antenna transmitting system through transmission devices such as circular waveguide, polarizer and commutation waveguide. The microwave output by the electron gyrotron is a horizontal linearly polarized wave, and the function of the polarizer is to change the polarization characteristics of the microwave. Before the polarizer is officially applied to the electronic cyclotron heating system, high-power experimental tests need to be carried out on a high-power experimental platform to verify whether the design of the polarizer is reasonable.

[0037] The center of the output window of the microwave source is on the axis of the first circular waveguide 1 .

[0038] Step 1: initial ...

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Abstract

The invention belongs to the field of plasma heating, and specifically relates to a method for measuring polarization parameters of high-power microwaves. Two directional couplers are calibrated, four circular waveguides are used to fix and install three right-angle elbows of transmission lines, and the polarizers are installed on The first transmission line elbow, two directional couplers are installed on the second transmission line right-angle elbow and the third transmission line right-angle elbow, and the two directional couplers are used to measure the polarization characteristics of the microwave after being reflected by the polarizer, and the measurement The data of the polarizer are compared with the theoretically calculated data to check whether the polarizer meets the design requirements. This method solves the difficult problem of testing the polarizer under high power conditions, and provides a method for verifying whether the polarization characteristics of the polarizer are consistent with the theoretical calculation results. The method is simple, reliable and easy to operate.

Description

technical field [0001] The invention belongs to the field of plasma heating, and in particular relates to a method for measuring polarization characteristics of high-power microwaves. Background technique [0002] In nuclear fusion research, electron cyclotron resonance heating is an important means of heating and regulation in controlled magnetic confinement nuclear fusion. As an important part of the electron cyclotron resonance heating system, the polarizer is mainly used to change the polarization characteristics of the microwave to achieve efficient coupling between the wave and the plasma. At present, polarizers are commonly used in electron cyclotron resonance heating systems to achieve arbitrary polarization of microwaves (electron cyclotron waves) to meet the polarized waves required for efficient coupling between waves and plasmas. [0003] At present, the microwave power of a single transmission line of the electron cyclotron resonance heating system has reached ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/08
CPCG01R29/08
Inventor 张峰黄梅王贺
Owner SOUTHWESTERN INST OF PHYSICS
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