High-power millimeter wave quasi-optical matching unit

By designing phase correction mirrors and support adjustment components using an adaptive optimization iterative algorithm, the problems of low conversion efficiency and poor beam quality in high-power millimeter-wave quasi-optical mode conversion units were solved, achieving efficient beam conversion and stable transmission, adapting to different process conditions, and improving the application efficiency and performance of the system.

CN122177520APending Publication Date: 2026-06-09INST OF ENERGY HEFEI COMPREHENSIVE NAT SCI CENT (ANHUI ENERGY LAB)
0 Cites 0 Cited by

Patent Information

Application Number
CN202610315636.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-16
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing high-power millimeter-wave quasi-optical mode conversion units suffer from low conversion efficiency and poor beam quality when converting from quasi-Gaussian mode to TEM11 mode, and have poor adaptability to changes in input beam parameters. This limits their application efficiency and performance in fields such as thermonuclear fusion research, high-resolution long-range radar, and materials industrial heating.

Method used

A high-power millimeter-wave quasi-optical matching unit was designed. An adaptive optimization iterative algorithm was used to optimize the phase correction mirror. Combined with a support adjustment component, the quasi-Gaussian mode beam was efficiently converted to the TEM11 mode. Stray waves were absorbed by the load ceramic tube, and the support adjustment component was fine-tuned to adapt to process errors and beam deviations.

Benefits of technology

It significantly improves energy utilization, ensures the stability and adaptability of beam transmission, enhances beam quality and transmission efficiency, adapts to different process conditions, and guarantees stable system operation and efficient energy transmission.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention relates to the technical field of high-power millimeter waves, in particular to a high-power millimeter wave quasi-optical matching unit. According to the technical scheme, the matching unit comprises a matching unit body, a corrugated circular waveguide and a circular waveguide are arranged on the two sides of the unit body respectively, the matching unit body comprises an input window, a phase correction mirror face, an output window, a supporting and adjusting assembly and a plurality of load porcelain tubes, and the phase correction mirror face comprises a first reflection mirror face and a second reflection mirror face. According to the invention, a phase correction mirror surface is designed through an adaptive optimization iterative algorithm, the conversion from a quasi-Gaussian mode beam to a TEM11 mode beam of the high-power gyrotron oscillator tube is efficiently realized, the energy utilization rate is improved, and the beam transmission index is guaranteed; in addition, by arranging six supporting adjusting assemblies, the positions of the mirror surface and the radiation inlet can be accurately and finely adjusted, the technology error and the beam deviation are adapted, the system adaptability and the fault-tolerant capability are improved, and it is ensured that output beam parameters are stable.
Need to check novelty before this filing date? Find Prior Art