圆柱谐振腔TE_(0np)模式净化的研究  

A Study on Mode Purifying Method of TE_(0np) Mode Cylindrical Cavity

作　　者：朱大红[1] 张其劭[2] 陈光荣[1] 

机构地区：[1]南京电子技术研究所,江苏省南京市210039 [2]成都电子科技大学,四川省成都市610054

出　　处：《信息化研究》2010年第1期41-44,共4页INFORMATIZATION RESEARCH

摘　　要：主要通过对圆柱谐振腔电磁场特性的分析,探讨采用对称的矩形波导的小孔在合适的腔体位置电磁激励、优化腔体大小的设计和谐振腔后腔处理,以达到对谐振腔中一些高次模和干扰模的抑制,即一腔多模的模式净化,同时提出了降低高次模和干扰模的有效方法,仿真和实验结果相吻合。In this paper, the characteristics of electromagnetic field within the cylindrical resonant cavity is analysed. In order to suppress some higher-order and interference modes, several new methods are proposed here, including optimization of the size of cavity, the back-cavity processing of resonant cavity and using sym- metric rectangular waveguides to excite the cavity through small apertures at the appropriate positions. Mean- while we put forward an effective method of decreasing higher-order and interference modes. Simulations agree well with the experimental results.

关 键 词：圆柱谐振腔 激励 净化 模式 高次模 干扰模 

分 类 号：TN61[电子电信—电路与系统]