低通型阻抗匹配网络的简捷设计

Impedance Matching Networks of Low-Pass Filter Form

本文研究Ｂｕｔｔｅｒｗｏｒｔｈ响应和Ｃｈｅｂｙｓｈｅｖ响应低通型阻抗匹配网络的简捷设计．给出了设计２阶和４阶阻抗匹配网络归一化元件值显公式和计算高阶阻抗匹配网络元件值的循环公式，从而把复杂的设计过程简化成简单的数值计算．

Explicit formulas for the element values of a low-pass impedance transforming network havingButterworth or Chebyshev responses are given. For the second- and the fourth-order networks, element values andtransforming frequency band are directly determined by the impedance ratios. Circulating formulaes for the higherorder networks are obtained by the conjugate poles of the reflection coefficient, thereby reducing the design ofthese networks to simple arithmetic.