基于CSRR的双通带HMSIW滤波器设计  

Compact Dual-band Bandpass HMSIW Filter Based on CSRR

作　　者：李姣 Li Jiao(No.39 Research Institute of CETC,Xi'an 710065,China)

机构地区：[1]中国电子科技集团公司第39研究所,西安710065

出　　处：《测控与通信》2022年第1期10-15,22,共7页

摘　　要：本文设计了1种基于半模基片集成波导(HMSIW)的双通带滤波器,通过在HMSIW顶层金属层和地板上分别蚀刻不同尺寸CSRR结构,实现双通带的设计,滤波器尺寸大大缩小。通过调节2种互补型开环谐振器的尺寸,可以实现2个中心频率和带宽的独立控制。通过加工1个中心频率为3.5 GHz/5.2 GHz的双通带滤波器来验证所提出的设计,仿真和实测结果具有良好的吻合性。A compact dual-band bandpass filter(BPF)based on the half-mode substrate integrated waveguide(HMSIW)is investigated in this letter.In order to generate two passbands,two complementary split-ring resonators(CSRRs)with different sizes are employed in the design.One is etched on the surface of HMSIW,the other one is etched on the ground,which can achieve the filter miniaturization.By changing the parameters of two CSRRs,both the two center frequencies and bandwidths can be controlled independently,respectively.In order to validate its practicability,a dual-band filter centered at 3.5GHz/5.2GHz is designed and demonstrated.The simulated and measured results are in good agreement with each other.

关 键 词：半模基片集成波导 互补型开环谐振器 双通带滤波器 

分 类 号：TN7[电子电信—电路与系统]