›› 2013, Vol. 26 ›› Issue (12): 63-.

• 论文 • 上一篇    下一篇

宽带压控带阻滤波器分析

李建   

  1. (新疆大学 电气工程学院,新疆 乌鲁木齐 830047)
  • 出版日期:2013-12-15 发布日期:2014-01-10
  • 作者简介:李建(1989—),男,硕士研究生。研究方向:继电保护通讯。E-mail:945369183@qq.com

Analysis of the Broadband Voltage Controlled Band-stop Filter

 LI Jian   

  1. (College of Electrical Engineering,Xinjiang University,Urumqi 830047,China)
  • Online:2013-12-15 Published:2014-01-10

摘要:

在继电保护通讯中,通讯信号在传输过程中通常会受到外部某一宽频段信号的干扰。特别是在载波通讯方面,其严重影响了通讯质量以及继电保护装置动作。但传统的窄带阻滤波器的衰减范围过小,无法达到衰减此宽频段干扰信号的理想效果。而一种宽带压控型带阻滤波器能够满足这一要求,同时具有电路性能稳定、增益便于调节的优点。因此,分析这种压控型宽带阻滤波器,研究其输入与输出电压波形、幅频特性和相频特性,并扩展实例应用,证明其具有一定的现实意义。

关键词: 宽带, 压控型, 带阻滤波器

Abstract:

In the relay communications,communication signals in the transmission process are often disturbed by outside a wide band signal,seriously affecting the communication quality and operation of protection devices particularly in the carrier communications.However,traditional narrow band stop filters (including notch filter) have such a limited attenuation range that ideal effect of interference signal attenuation cannot be achieved in this band.A wideband voltage-controlled band-stop filter can meet this requirement,and the voltage control circuit has the advantages of stable performance and easily adjustable gain.The input and output amplitude frequency characteristics of voltage-controlled band-stop filter are analyzed and its extended applications are introduced.

Key words: broadband;voltage control;and-stop filte

中图分类号: 

  • TN713