盘荷波导慢波结构色散特性的变分分析  

Variational Analysis of Dispersion Characteristics in Disk-Loaded Waveguide Slow-Wave Structures

作　　者：李建清[1] 莫元龙[1] 周晓岚[1] 

机构地区：[1]电子科技大学物理电子学院,四川成都610054

出　　处：《真空电子技术》2006年第3期7-10,共4页Vacuum Electronics

基　　金：大功率微波电真空器件技术国家级重点实验室基金;国家自然科学基金资助项目(10476004)

摘　　要：盘荷波导慢波结构可以看成由无数多个波导不连续性组成,每个波导不连续性可用一个T型网络描述,其参数能用变分方法得到,再根据无耗的四端微波网络理论,可以得到这种慢波结构的色散方程,因此本文得到了一种用于计算盘荷波导慢波结构色散特性的变分法。该变分法获得的色散特性结果与用场匹配法和HFSS模拟获得的结果符合得比较好。Disk-loaded slow-wave waveguide structures are composed of many waveguide discontinuities. The waveguide discontinuity can be described by a symmetrical T network, whose parameters are calculated by variational methods. Then the dispersion equation of the slow-wave structure can be obtained using lossless microwave quadruple theory. Good agreement is observed between results of the variational method and those of field matching method and high-frequency structure simulator.

关 键 词：变分法 波导不连续性 四端微波网络理论 色散特性 

分 类 号：TN124[电子电信—物理电子学]