摘要
提出了一种改进型螺旋微带谐振单元(SCMRC)的结构.该改进型螺旋微带谐振单元具有微带并联开路线,在低频通带内通过设计达到50Ω的端口阻抗.同时,并联的微带开路线在SCMRC结构的禁带中谐振,来实现更强的慢波效应和更宽的禁带.实际设计、制作和测试了该改进型螺旋微带谐振单元,该滤波器在低频通带内具有低插入损耗、改善的回波损耗,以及在较小面积下的宽禁带.
An improved spiral compact microstrip resonant cell （SCMRC） was presented. The improved SCMRC with microstrip open stub lines was designed to achieve 50Ω port impedance in the low-pass band. Also, the microstrip open stub liens are resonant at the stop-band of the SCMRC resulting in the stronger slow-wave effect and wider stop-band. The proposed improved SCMRC was designed, fabricated, and measured. It shows the lower insertion loss, improved return loss in the low-pass band, and wider stop-band with compact size.
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第5期321-324,共4页
Journal of Infrared and Millimeter Waves
基金
Supported by National"973"Project(State Key Basic Research Program of China)(00300123)
关键词
微带并联开路线
螺旋微带谐振单元
慢波
禁带
microstrip open stub line
spiral compact microstrip resonant cell （SCMRC）
slow-wave
stop-band
