槽区加载介质矩形格栅慢波结构的色散与增益

建立了槽区内加载介质的格栅慢波结构模型.通过Borgnis函数法和场匹配法得到冷态和热态色散方程.并推导了耦合阻抗的表达式.在稀疏电子注的假设下,求得增益近似解的表达式.通过数值方法,求解并分析了加载介质对色散关系、基波耦合阻抗、基波相速和基波增益的影响.并指出分别在槽内加载介质和格栅对侧加载介质对高频特性的不同影响趋势....

Full description

Saved in:
Bibliographic Details
Published in红外与毫米波学报 Vol. 34; no. 2; pp. 184 - 189
Main Author 梁源 赵鼎 王勇 丁耀根
Format Journal Article
LanguageChinese
Published 中国科学院电子学研究所中国科学院高功率微波源与技术重点实验室,北京,100190 2015
Subjects
介质加载
增益
耦合阻抗
色散
金属格栅
耦合阻抗
色散
coupling impedance
金属格栅
介质加载
增益
metal-grating
dielectric loaded
gain
Online AccessGet full text
ISSN1001-9014
DOI10.11972/j.issn.1001-9014.2015.02.011

Cover

More Information
Summary:建立了槽区内加载介质的格栅慢波结构模型.通过Borgnis函数法和场匹配法得到冷态和热态色散方程.并推导了耦合阻抗的表达式.在稀疏电子注的假设下,求得增益近似解的表达式.通过数值方法,求解并分析了加载介质对色散关系、基波耦合阻抗、基波相速和基波增益的影响.并指出分别在槽内加载介质和格栅对侧加载介质对高频特性的不同影响趋势.
Bibliography:31-1577/TN
A model of the metal-grating periodic slow-wave structure （SWS） with dielectric loaded in the grooves was built and the expressions of the dispersion equation and coupling impedance were developed by using the Borgnis function and the field-matching method. Under the assumption of the dilute electron beam, the gain was obtained. Through nu- merical calculations, the influences on the high-frequency characteristics of some parameters are given. Moreover, the different characteristics of the two ways of the dielectric being loaded have been analyzed
LIANG ~uan, ZHAO Ding, WANG Yong, DING Yao-Gen （ Key Laboratory of High Power Microwave Source and Technologies of Chinese Academy of Sciences, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China）
metal-grating, dielectric loaded, gain, coupling impedance
ISSN:1001-9014
DOI:10.11972/j.issn.1001-9014.2015.02.011