基于传输矩阵的勒让德阻抗变换器设计方法  

Design method of legendre impedance transformer based on transmission matrix

作　　者：赵俊君 李冬梅[1] 宋贺伦[2] 刘登科 ZHAO Jun-jun;LI Dong-mei;SONG He-lun;LIU Deng-ke(School of Materials Science and Engineering,Shanghai University,Shanghai 200444,China;System Integration&IC Design Division,Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou 215123,China)

机构地区：[1]上海大学材料科学与工程学院,上海200444 [2]中国科学院苏州纳米技术与纳米仿生研究所系统集成与IC设计研究部,江苏苏州215123

出　　处：《微电子学与计算机》2019年第12期26-29,共4页Microelectronics & Computer

基　　金：国家重点研发计划项目(2016YFE0129400);国防基础科研重点项目(JCKY2017210B006)

摘　　要：阻抗变换器是实现现代无线通信系统中宽带功率放大器设计的重要一环.提出了一种基于传输矩阵的勒让德阻抗变换器设计方法.该方法结合归一化的传输矩阵(A^~参量矩阵)理论完成了勒让德阻抗变换器的公式推导和设计步骤.并结合MATLAB,ADS(Advanced Design System)联合设计了阻抗变比为4,相对带宽高达66.7%的三阶勒让德阻抗变换器.该三阶勒让德阻抗变换器带内衰减量L小于0.013 dB,实际带宽为2 GHz.An Impedance converter is an important part of the design of broadband power amplifiers in modern wireless communication systems.A design method of Legendre impedance transformer based on transmission matrix is proposed.This method combined with the normalized transfer matrix theory completes the formula derivation and design steps of the Legendre impedance transformer.Combined with MATLAB,ADS(Advanced Design System)jointly designed a three-order Legendre impedance transformer with an impedance ratio of 4 and a relative bandwidth of 66.7%.The third-order Legendre impedance converter has an in-band attenuation L of less than 0.013 dB and an actual bandwidth of 2 GHz.

关 键 词：勒让德 多节阻抗变换器 归一化传输矩阵 

分 类 号：TN811[电子电信—信息与通信工程]