›› 2012, Vol. 25 ›› Issue (1): 5-.

• 论文 • 上一篇    下一篇

阻抗匹配电路原理与应用

田亚朋,张昌民,仲维伟   

  1. (西安电子科技大学 理学院,陕西 西安 710071)
  • 出版日期:2012-01-15 发布日期:2012-01-10
  • 作者简介:田亚朋(1986—),男,硕士研究生。研究方向:电磁目标散射特性。仲维伟(1985—),男,硕士研究生。研究方向:电磁波传输特性及电磁散射特性。

Impedance Matching Circuit Principle and its Application

 TIAN Ya-Peng, ZHANG Chang-Min, ZHONG Wei-Wei   

  1. (School of Science,Xidian University,Xi'an 710071,China)
  • Online:2012-01-15 Published:2012-01-10

摘要:

阻抗匹配基本原理与概念,阻抗匹配常见于各级放大电路之间,放大电路与负载之间,信号与传输电路之间。微波电路与系统的设计中,无论是有源还是无源,都必须考虑匹配问题,其根本原因是低频电路中为电压与电流,而高频中导行电磁波不匹配就会发生严重的反射,损坏仪器和设备,文中阐述相应的解决方法。

关键词: 阻抗匹配;噪声;电路

Abstract:

The basic principles and concepts of impedance matching are presented.Impedance matching is commonly used between the amplifiers at all levels,amplifier and load,signal and transmission circuit,and even between microwave circuit and system design.The fundamental reason is that mis-matching of voltage and current in the low-frequency circuit and electromagnetic wave in the high frequency circuit may lead to serious reflection and damage instruments and equipment.Impedance matching is the solution,which is discussed in this paper.

Key words: impedance matching;noise;circuit

中图分类号: 

  • TN721