摘要
针对毫米波片上滤波电路所面临的大尺寸与高损耗问题,文中提出一种基于外部品质因素以及MIM电容加载的小型化片上滤波功分器。文中提出由两种集总电容和分布式传输线电感构成的片上谐振器,实现结构小型化,并基于输入外部品质因数提出小型化滤波功分器拓扑。为提高滤波功分器的输出隔离,文中提出基于复数阻抗和表面波抑制条带的高隔离电路结构。最后,基于砷化镓衬底的集成无源器件(IPD)工艺设计一款两路等功分28 GHz片上滤波功分器,插入损耗仅为0.9 dB(不考虑功分),尺寸仅为0.7 mm^(2),全频段输出隔离大于17 dB。
Aiming at the large size and high loss issue of the millimeter-wave(mm-wave)on-chip filtering circuits,the paper proposes a compact filtering power divider based on the external quality factor and metal-insulator-metal(MIM)capacitors loading technique.Size reduction can be realized by proposing an on-chip resonator using two lumped capacitors and one distributed transmission-line inductor.In addition,a miniaturized circuit topology is realized by using the external quality factor.To improve the output isolation,a high-isolation structure merging the complex impedance and a surface-wave-suppression strip is used.Finally,a two-way equal-power 28 GHz on-chip filtering power divider is designed using GaAs-based integrated passive device(IPD)technology,with a minimum insertion loss of 0.9 dB(excluding the power division),a compact size of 0.7 mm^(2),and output port isolation better than 17 dB.
作者
沈光煦
徐鹏涵
冯文杰
车文荃
SHEN Guangxu;XU Penghan;FENG Wenjie;CHE Wenquan(College of Electronics and Optical Engineering,College of Flexible Electronics,Nanjing University of Posts and Telecommunications,Nanjing 210023,China;School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510641,China)
出处
《微波学报》
北大核心
2025年第4期51-55,60,共6页
Journal of Microwaves
基金
国家重点研发计划(2018YFB1802000)
国家自然科学基金(62001244)
江苏省自然科学基金(BK20200742)。
关键词
集成无源器件
毫米波
片上
滤波器
功分器
integrated passive device
millimeter-wave
on-chip
filter
power divider
