一种两毫米波矩形波导带通滤波器的研究与设计  

Research and Design of Band Pass Filter of 2mm- Wave Rectangular Waveguide with Metal Septum

作　　者：詹景坤[1] 吕天慧 陈灿辉[1] 郑宏涛[1] 王国庆[1] 宁学 

机构地区：[1]中国运载火箭技术研究院研究发展中心,北京100076

出　　处：《电子测试》2015年第3X期18-22,共5页Electronic Test

摘　　要：随着毫米波技术的快速发展,八毫米波以及三毫米波器件产品相继被研制出来,并已应用到实际工程项目中。在此基础上,对两毫米波技术的应用需求也愈加迫切,两毫米波器件的研究也愈加被重视。本文通过HFSS仿真与设计软件,采用了有限元算法(Finite Element Method),完成了一种两毫米波矩形波导带通滤波器的仿真优化设计。该滤波器采用一种平行于矩形波导端口面的膜片分腔结构,形成了一种特殊的波导腔体谐振式选频网络。实现了中心频率为140GHz,带宽为8GHz,插入损耗小于0.1dB,回波损耗大于25dB,带外抑制为-20dB左右的技术指标。With the rapid development of millimeter wave technology,8 millimeter and 3 millimeter wave devices have been developed,and has been applied to practical engineering projects.At the same time, the application demand of 2 millimeter wave technology is more and more urgent, the research of 2 millimeter wave devices are increasingly being attention. In this paper,through the HFSS simulation and design software,using the finite element method (Finite Element Method),completed a two millimeter wave rectangular waveguide bandpass filter design. The filter has adopted the diaphragm chamber structure,which is in parallel with the rectangular waveguide port,realizes a kind of special cavity resonant frequency selective network.The center frequency of bandpass filter is 140GHz,with 10GHz band-width and 0.1dB insertion loss and about 25dB attenuation in the band and -20dB outside the band.

关 键 词：两毫米波 矩形波导 金属膜片结构 带通滤波器 

分 类 号：TN713.5[电子电信—电路与系统]