Suppression of Multipactor Discharge on a Dielectric With a Beat Wave

IF 2.9 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Electron Devices Pub Date : 2024-11-27 DOI:10.1109/TED.2024.3503534

Xinyi Huang;Huihui Wang;Laqun Liu;Dagang Liu;Zhijie Li

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Abstract

An electromagnetic particle-in-cell (PIC) simulation technique is used to analyze multipactor discharge on a dielectric with a beat wave composed of multiple high-power microwaves (HPMs) with similar frequencies. Unlike the single-frequency HPM, the strength of

${E}_{\text {n}}$

of the multipactor with a beat wave fluctuates greatly with time, resulting in the root-mean-square value of

${E}_{\text {n}}$

(strongly related to the average deposition power) being significantly greater than the absolute value of the arithmetic mean of

${E}_{\text {n}}$

(the traditional indicator of the multipactor strength), where

${E}_{\text {n}}$

is the electric field due to the deposited charges induced by multipactor. In this article, the influence of double-frequency and triple-frequency beat waves on multipactor is studied from the perspective of the root-mean-square value and absolute value of the arithmetic mean of

${E}_{\text {n}}$

. The results show that the strong multipactor with a beat wave is unaffected by the spectra of the beat wave and the beat wave cannot inhibit the strong multipactor strength in contrast to a single-frequency HPM with the same average microwave power while the inhibition effect of a beat wave on a moderated multipactor is obvious. Further analysis shows that the suppression effect of a beat wave on a moderated multipactor is greatest when both the frequencies and phases of the beat wave are arranged in an arithmetic progression and the moderated multipactor can also be suppressed substantially when the amplitudes of the beat wave deviate slightly from the condition of equal amplitude.

查看原文本刊更多论文

用拍波抑制介质上的多因素放电

采用电磁粒子池（PIC）仿真技术，分析了由频率相近的多个高功率微波组成的热波在介质上的多因素放电。与单频HPM不同，带节拍波的多压因数的${E}_{\text {n}}$的强度随时间波动较大，导致${E}_{\text {n}}$的均方根值（与平均沉积功率密切相关）显著大于${E}_{\text {n}}$的算术平均值的绝对值（多压因数强度的传统指标）。式中${E}_{\text {n}}$为由多因子诱导的沉积电荷引起的电场。本文从${E}_{\text {n}}$的算术平均值的均方根值和绝对值的角度研究了双频和三频拍波对多因子的影响。结果表明，与具有相同平均微波功率的单频HPM相比，带拍波的强多因子不受拍波谱的影响，拍波不能抑制强多因子强度，而拍波对弱多因子的抑制作用明显。进一步分析表明，当拍波的频率和相位均按等差数列排列时，拍波对慢化多因子的抑制效果最大，当拍波的幅值稍微偏离等幅值条件时，慢化多因子也能得到明显的抑制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Electron Devices 工程技术-工程：电子与电气

CiteScore

5.80

自引率

16.10%

发文量

937

审稿时长

3.8 months

期刊介绍： IEEE Transactions on Electron Devices publishes original and significant contributions relating to the theory, modeling, design, performance and reliability of electron and ion integrated circuit devices and interconnects, involving insulators, metals, organic materials, micro-plasmas, semiconductors, quantum-effect structures, vacuum devices, and emerging materials with applications in bioelectronics, biomedical electronics, computation, communications, displays, microelectromechanics, imaging, micro-actuators, nanoelectronics, optoelectronics, photovoltaics, power ICs and micro-sensors. Tutorial and review papers on these subjects are also published and occasional special issues appear to present a collection of papers which treat particular areas in more depth and breadth.