一种低插入损耗的180 GHz腔体滤波器  

A low insertion loss 180 GHz cavity bandpass filter

作　　者：熊阳 裴乃昌[1] 何毅龙[1] 黄建[1] XIONG Yang;PEI Naichang;HE Yilong;HUANG Jian(Southwest China Institute of Electronic Technology,Chengdu Sichuan 610036,China)

机构地区：[1]中国西南电子技术研究所,四川成都610036

出　　处：《太赫兹科学与电子信息学报》2021年第2期181-184,共4页Journal of Terahertz Science and Electronic Information Technology

摘　　要：基于H形感性窗结构设计了一款低插入损耗的8阶波导腔太赫兹滤波器。经Ansoft HFSS对滤波器进行仿真优化后,滤波器采用传统的数控铣进行实物加工。测试结果表明:滤波器的中心频率位于179.1 GHz,1 dB相对带宽为8.7%。滤波器中心频率处的插入损耗为0.34 dB,回波损耗优于18.9 dB。所设计的太赫兹腔体滤波器具有低插入损耗、高选择性、高带外抑制等优点,可以满足太赫兹通信系统的要求。A 8-pole terahertz(THz)cavity bandpass filter with low insertion loss based on H ladder structure is presented.The filter is simulated and optimized by Ansoft HFSS,and it is finally processed by computer numerical control milling.The measured results show that the center frequency of the filter is located at 179.1 GHz with 1 dB fraction bandwidth of 8.4%.The insertion loss at 179.1 GHz is 0.34 dB,and the return loss is lower than 18.9 dB.The proposed THz cavity bandpass filter possesses the merits of low insertion loss,high selectivity and high stopband suppression,which can meet the requirements of THz communication systems.

关 键 词：太赫兹 带通滤波器 腔体滤波器 低插入损耗 

分 类 号：TN713.1[电子电信—电路与系统]