基于GaAs工艺的超宽带低插入损耗高通滤波器  

Ultra-Wideband Low Insertion Loss High-Pass Filter Based on GaAs Process

作　　者：王文斌 闫慧君 姜严 吴啸鸣 张圣康 施永荣 WANG Wenbin;YAN Huijun;JIANG Yan;WU Xiaoming;ZHANG Shengkang;SHI Yongrong(Suzhou Semi-Mile T&C Co.,Ltd.,Suzhou 215000,China;College of Integrated Circuit Science and Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210023,China;College of Integrated Circuits,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China)

机构地区：[1]苏州赛迈测控技术有限公司,江苏苏州215000 [2]南京邮电大学集成电路科学与工程学院,南京210023 [3]南京航空航天大学集成电路学院,南京211106

出　　处：《电子与封装》2024年第10期65-68,共4页Electronics & Packaging

基　　金：南京邮电大学引进人才自然科学研究启动基金(NY223037)。

摘　　要：基于GaAs工艺设计了一款超宽带低插入损耗高通滤波器,在传统的高通滤波器中加入LC并联谐振电路,构建了一种新颖的拓扑结构,形成了高电阻、低电流的电路条件,同时促进了滤波器单元间的内部耦合,提升了带外抑制能力,改善了电路的陡降性。利用ADS仿真软件进行仿真设计,并对芯片进行了流片验证。该款高通滤波器的截止频率为28 GHz,带内插入损耗小于1.8 dB,芯片尺寸为1.65 mm×0.635 mm×0.1 mm,在DC~2 GHz的带外抑制大于等于77 dB,在DC~4 GHz时陡降为135 dB。An ultra-wideband low insertion loss high-pass filter is designed based on GaAs process,and a LC parallel resonant circuit is added to the conventional high-pass filter to construct a novel topology,which forms the circuit condition of high resistance and low current,promotes the internal coupling between filter units and improves the out-of-band suppression ability and steep drop of the circuit.The simulation design is carried out using ADS simulation software,and the chip is fabricated and verified.The cut-off frequency of the high-pass filter is 28 GHz,the insertion loss is less than 1.8 dB in the pass band,the chip size is 1.65 mm×0.635 mm×0.1 mm,the out-of-band rejection at DC-2 GHz is not less than 77 dB,and the steep drop is 135 dB at DC-4 GHz.

关 键 词：高通滤波器 GAAS ADS 超宽带 

分 类 号：TN713.4[电子电信—电路与系统]