›› 2015, Vol. 28 ›› Issue (6): 173-.

• 论文 • 上一篇    下一篇

具有陷波特性的宽带微带线-槽线巴伦的设计

徐平   

  1. (西安导航技术研究所 通信事业部,陕西 西安 710068)
  • 出版日期:2015-06-15 发布日期:2015-06-20
  • 作者简介:徐平(1988—),男,工程师。研究方向:天线与射频电路。E-mail:pxuwork@163.com

Design of a Broadband Microstrip Line to Soltline Balun with Band Notched Characteristic

XU Ping   

  1. (The Ministry of Communications,Xi'an Research Institute of Navigation Technology,Xi'an 710068,China)
  • Online:2015-06-15 Published:2015-06-20

摘要:

提出了一种具有陷波特性的宽带微带线-槽线巴伦。通过采用阶梯型阻抗变换器,拓宽了巴伦的工作带宽。同时,在微带线的开路枝节上增加了一个1/4波长的开路枝节,使得巴伦可以在所需的频段内实现陷波特性。仿真结果表明,巴伦除在1.25~1.46 GHz频带内实现陷波外,在0.38~2 GHz频带内反射系数均<-10 dB,插入损耗均优于-1.8dB。

关键词: 巴伦, 宽带, 陷波, 微带线, 槽线

Abstract:

A broadband microstrip line to slotline balun with band notched characteristic is proposed.A broad operating band can be obtained by using a quarter-wave impedance transformer of 2 steps.A notched band can be realized by inserting a quarter-wave open stub on to the open stub of microstrip.The simulated results show that the impedance bandwidth with reflection coefficients less than -10 dB and insert loss better than -1.8 dB covers 0.38~2 GHz except the notched band 1.25~1.46 GHz.

Key words: Balun;broadband;band notched;microstip;slotline

中图分类号: 

  • TN821