摘要
矩形波导中插入感性销钉不连续性结构可用于设计高指标的滤波器。通过模式匹配法对这种不连续结构进行了较为精确的分析。借助坐标变换将场统一到圆柱坐标系中。引入虚拟边界,并在虚拟边界匹配切向场,得到了该不连续结构的散射参数。最后将模匹配分析结果与AnsoftHFSS商业软件的仿真结果作了比较,二者一致性很好。
The discontinuities of rectangular waveguide inserted with a inductive post is applied to the designing of high quality filters. With the mode matching method, the discontinuous structure was analyzed accurately. The field was unified in cylindrical coordinate system by a conversion of coordinates. After a virtual boundary was introduced, the scattering matrix of this discontinuities was obtained by the matching of tangential field at the virtual boundary. At last, the result from the mode matching method was compared with the simulation from Ansoft HFSS. The results from two methods agree well to each other.
出处
《信息与电子工程》
2008年第5期346-349,358,共5页
information and electronic engineering
关键词
模式匹配
感性柱
虚拟边界
波导滤波器
Mode Matching Method （MMM）
inductive post
virtual boundary
waveguide filter
