基于IPD工艺的无反射低通滤波器设计  

Reflectionless Low-pass Filter Design based on IPD Process

作　　者：王浩洋 邢孟江[1] 李小珍 张磊[1] 杨晓东[1] WANG Hao-yang;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7期1734-1738,共5页Communications Technology

基　　金：国家自然科学基金(No.61564005)~~

摘　　要：基于集成无源器件(IPD)工艺提出了一款三阶无反射低通滤波器,特点是能吸收阻带信号,避免滤波器反射信号与系统中其他组件发生有害交互。在HFSS软件中建立基于新型电路拓扑结构的滤波器模型,并对模型进行三维电磁场仿真。结果表明,该滤波器在整体尺寸仅为1 mm×1 mm×0.3 mm的情况下,实现了插入损耗≤3 d B@DC-1.25 GHz,带外抑制≥20 d B@1.25~8 GHz,回波损耗≥27d B@DC-7.5 GHz。模型仿真结果与原理电路仿真结果相符,验证了基于IPD工艺设计无反射低通滤波器的可行性。Based on IPD(Integrated Passive Device)process,a third-order non-reflective low-pass filter is proposed,being characterized by the ability to absorb the stop-band signal and avoid harmful interaction between the reflected signal of the filter and other components in the system.A filter model based on the new circuit topology is built up in HFSS software,and the model is simulated by 3D electromagnetic field.The simulation results indicate that under the condition that the overall size of the device is 1mm×1mm×0.3mm,the filter insertion loss of less than 3dB@DC-1.25GHz,out-of-band suppression of greater than 20dB@1.25GHz-8GHz,and return loss of greater than 27dB@DC-7.5GHz could be realized.Simulation results of the model are quite consistent with those of the principle circuit,indicating the feasibility in designing the non-reflective low-pass filter based on the IPD process.

关 键 词：低通滤波器 无反射 集成无源器件 吸收式滤波器 

分 类 号：TN713[电子电信—电路与系统]