基于IPD工艺的微型化高通无反射滤波器的设计  

Design of Miniaturized Reflectionless High-pass Filter based on IPD Process

作　　者：徐珊 邢孟江[1] 李小珍 张磊[1] 杨晓东[1] XU Shan;XING Meng-jiang;LI Xiao-zhen;ZHANG Lei;YANG Xiao-dong(School of Information and Automation,Kunming University of Science and Technology,Kunming Yunnan 650504,China;School of Information and Technology,Kunming Institute,Kunming Yunnan 650214,China)

机构地区：[1]昆明理工大学信息工程与自动化学院,云南昆明650504 [2]昆明学院信息技术学院,云南昆明650214

出　　处：《通信技术》2018年第9期2257-2261,共5页Communications Technology

基　　金：国家自然科学基金(No.61564005)~~

摘　　要：设计了一款基于集成无源器件(IPD)技术的微型化高通无反射滤波器。不同于传统滤波器,该滤波器通过吸收阻带信号,阻止反射信号回信号源来实现滤波器的无反射特性。该滤波器电路由一端终止的低通滤波器原型作偶模等效电路、低通滤波器原型的对偶形式作奇模等效电路设计得到。在HFSS中建立滤波器模型并仿真,结果表明该滤波器截止频率为2.58 GHz,带内插入损耗小于0.3 dB,带外吸收大于19.7 dB,带外抑制大于14 dB,整体尺寸仅为1 mm×1 mm×0.1 mm。A miniaturized high-pass reflectionless filter based on IPD(Integrated Passive Device)technology is designed.Unlike conventional filters,this filter implements the reflectionless characteristics by absorbing the stop-band signal and blocking the reflected signal from feeding back to the source.The filter circuit is designed by a low-pass filter prototype terminated at one end as an even-mode equivalent circuit,and the dual form of the low-pass filter prototype as an odd-mode equivalent circuit.The filter model is established and simulated in HFSS.The experiment results indicate that the filter cutoff frequency is 2.58GHz,the in-band insertion loss less than 0.3dB,the out-of-band absorption greater than 19.7dB,the out-ofband rejection greater than 14dB,and the overall size only 1mm×1mm×0.1mm.

关 键 词：微型化 高通滤波器 IPD工艺 无反射 

分 类 号：TN713[电子电信—电路与系统]