J4 ›› 2012, Vol. 39 ›› Issue (1): 75-78.doi: 10.3969/j.issn.1001-2400.2012.01.014

• 研究论文 • 上一篇    下一篇

新型SG-CRLH传输线结构的应用

强力;赵伟;秦红波   

  1. (西安电子科技大学 机电工程学院,陕西 西安  710071)
  • 收稿日期:2010-12-14 出版日期:2012-02-20 发布日期:2012-04-06
  • 通讯作者: 强力
  • 作者简介:强力(1983-),男,西安电子科技大学博士研究生,E-mail: 57934375@QQ.com.
  • 基金资助:

    国家自然科学基金资助项目(60871008);东南大学毫米波国家重点实验室基金资助项目(2010001)

Novel SG-CRLH transmission line and its application to the UWB dual-band bandpass filter

QIANG Li;ZHAO Wei;QIN Hongbo   

  1. (School of Mechano-electronic Engineering, Xidian Univ., Xi'an  710071, China)
  • Received:2010-12-14 Online:2012-02-20 Published:2012-04-06
  • Contact: QIANG Li

摘要:

为了扩展复合左右手传输线在双频微波器件中的应用,提出一种新型的简化复合左右手传输线结构.这种新型传输线与广义复合左右手传输线相比,在保留双频带通滤波功能的基础上,简化了电路模型、实际结构与设计步骤.利用这种新型传输线与单负媒质互补开口谐振环的周期结构设计了一个超宽带双频带通滤波器(2.2~4.0GHz, 4.8~9.3GHz).两个通带的相对带宽分别达到58%和63.8%.

关键词: 简化的广义复合左右手, 广义复合左右手, 传输线, 互补开口谐振环, 双频带通, 滤波器, 超宽带

Abstract:

An ultra-wide band (UWB) dual-band bandpass filter is presented using a simplified general composite right/left-handed (SG-CRLH) structure. Each cutoff frequency is controllable by the values of elements. To enhance the spurious passband suppression, periodical complementary split-ring resonators (CSRRs) are introduced to form an extra transmission zero. Finally, an UWB dual-band bandpass filter (2.2~4.0GHz, 4.8~9.3GHz) is designed, fabricated and tested. The fractional bandwidths of the first and second passbands are 58% and 63.8%, respectively. The good agreement between measurement and simulation is observed.

Key words: simplified general composite right/left handed, general composite right/left handed, transmission line, complementary split-ring resonator, dual-band bandpass, filter, ultra-wide band

中图分类号: 

  • TN015