上海大学学报(自然科学版)

• 通信与信息工程 • 上一篇    下一篇

新型开环谐振器带通滤波器的设计

江新华,李国辉
  

  1. 上海大学 通信与信息工程学院,上海 200072
  • 收稿日期:2007-04-03 修回日期:1900-01-01 出版日期:2008-06-30 发布日期:2008-06-30
  • 通讯作者: 李国辉

Design of Band-Pass Filter with Novel OpenLoop Resonators

JIANG Xin-hua,LI Guo-hui   

  1. School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China
  • Received:2007-04-03 Revised:1900-01-01 Online:2008-06-30 Published:2008-06-30
  • Contact: LI Guo-hui

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%.

关键词: 带通滤波器, 开环谐振器, 微带线, 小型化

Abstract: 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 highfrequency 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%.

Key words: bandpass filter, microstrip
,
open-loop resonator, miniaturization

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