摘要
提出一组新型的方形开环谐振器,使用这种新型的谐振器设计微带线带通滤波器,可以有效地减小滤波器的尺寸.利用其中一种新型的谐振器,设计加工了一个小型化带通滤波器,仿真与测试结果显示,该滤波器有很好的频率选择性、阻带特性和较小尺寸.与传统的开环谐振滤波器比较,尺寸减小了30%.
In this paper, several square open-loop resonators with transmission lines are proposed to design optimized bandpass filters. In comparison with conventional open-loop resonator bandpass filters, the proposed filter can achieve size reduction. A compact microstrip filter using one of these open-loop resonators is fabricated and measured. Simulation and measurement on the fabricated filter show highfrequency selectivity and good stop-band characteristic with small dimensions. Compared with conventional filters using coupled square open-loop resonators, the proposed filter has a size reduction of 30%.
出处
《上海大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第3期236-238,243,共4页
Journal of Shanghai University:Natural Science Edition
关键词
小型化
带通滤波器
开环谐振器
微带线
miniaturization
bandpass filter
open-loop resonator
microstrip
