广西师范大学学报（自然科学版） ›› 2017, Vol. 35 ›› Issue (4): 32-38.doi: 10.16088/j.issn.1001-6600.2017.04.005

• • 上一篇    下一篇

超宽带微带带通滤波器的设计

袁伟强,宋树祥*,程 洋,张勇敢   

  1. 广西师范大学电子工程学院,广西桂林541004
  • 出版日期:2017-07-25 发布日期:2018-07-25
  • 通讯作者: 宋树祥(1970—),男,湖南双峰人,广西师范大学教授,博士。E-mail: songshuxiang@mailbox.gxnu.edu.cn
  • 基金资助:
    国家自然科学基金(61361011);广西自然科学基金(2014jjAA70058);广西研究生教育创新计划(XYCSZ2017050)

Design of Ultra-Wideband Microstrip Bandpass Filter

YUAN Weiqiang, SONG Shuxiang*, CHENG Yang, ZHANG Yonggan   

  1. College of Electronic Engineering, Guangxi Normal University, Guilin Guangxi 541004, China
  • Online:2017-07-25 Published:2018-07-25

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摘要： 为了设计小型化、低插入损耗、宽阻带的滤波器,本文基于缺陷微带结构(defected microstrip structure,DMS)提出一种新型H形DMS结构微带滤波器,利用DMS结构与1/4波长终端短路谐振器设计制作一种小型超宽带微带带通滤波器,并用ADS(advanced design system)软件对该滤波器进行分析及仿真验证,且对所设计的滤波器进行实物加工测试。测试结果表明,该滤波器的相对带宽达到了116%,阻带在-20 dB以下的频段为12~19 GHz,其宽度达到了7 GHz,与理论分析基本一致。该滤波器尺寸为13.7 mm×6.8 mm,同时还具有插入损耗小、结构简单紧凑等优点。

关键词: 带通滤波器, 缺陷微带结构(DMS), 超宽带, 短路枝节, ADS

Abstract: Based on the defected microstrip structure (DMS), a new H-shaped DMS microstrip filter is proposed. A small ultra-wideband microstrip bandpass filter is designed and fabricated using the DMS structure and the 1/4 wavelength shorted resonator. The filter is analyzed and simulated by ADS software. The designed filter is tested by physical processing. The test results show that the relative bandwidth of the filter reaches 116%, and the band with -20 dB is 12-19 GHz and its width is 7 GHz, which is consistent with the theoretical analysis. The size of the filter is 13.7 mm× 6.8 mm, with a small insertion loss, simple structure, and other advantages.

Key words: bandpass filter, defect microstrip structure (DMS), ultra-wideband, short-circuit branch, ADS

中图分类号: 

  • TN713
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