Linear theory of a dielectric-loaded rectangular Cerenkov maser with a sheet electron beam

被引：2

作者：

Chen Ye ^{[1
,2
]}

Zhao Ding ^{[2
]}

Liu Wen-Xin ^{[2
]}

Wang Yong ^{[2
]}

Wan Xiao-Sheng ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Elect, Key Lab High Power Microwave Sources & Technol, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

CHINESE PHYSICS B | 2012年 / 21卷 / 10期

基金：

中国国家自然科学基金;

关键词：

rectangular Cerenkov maser; beam-wave interaction; hybrid-mode; dispersion equation; Borgnis potential function; AMPLIFIERS; RADIATION;

D O I：

10.1088/1674-1056/21/10/104103

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A three-dimensional model of a dielectric-loaded rectangular Cerenkov maser with a sheet electron beam for the beam-wave interaction is proposed. Based on this model, the hybrid-mode dispersion equation is derived with the Borgnis potential function by using the field-matching method. Its approximate solution is obtained under the assumption of a dilute electron beam. By using the Ansoft high frequency structural simulator (HFSS) code, the electromagnetic field distribution in the interaction structure is given. Through numerical calculations, the effects of beam thickness, beam and dielectric-layer gap distance, beam voltage, and current density on the resonant growth rate are analysed in detail.

引用

页数：6

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