摘要
介绍了传输线变压器的工作原理,应用电报方程分析它的阻抗变换特性,得到负载阻抗、源阻抗与传输线特性阻抗之间满足的最佳传输条件,给出传输线特性阻抗、传输线长度、磁芯材料、类型和导线匝数的确定方法,特别考虑了在选择磁芯材料的时候铁氧体磁导率随频率变化的影响,为传输线变压器巴伦的设计和优化提供了理论基础。
This paper introduces the principle of the transmission-line transformer,analyzes its characteristics of impedance transformation by using the telegraph equation,and obtains the best transmission conditions between the load impedance,source impedance and characteristic impedance of the transmission line.The method is given to achieve characteristic impedance of the transmission line,transmission line length,material and type of the core,turn number of the wire.When selecting core materials,the effect of ferrite permeability change with frequency is considered.The paper provides a theoretical basis for the design and optimization of transmission-line transformer.
出处
《计算机与数字工程》
2012年第2期124-126,共3页
Computer & Digital Engineering
关键词
传输线变压器
电报方程
阻抗变换
设计步骤
磁导率
transmission-line transformer
telegraph equation
impedance transformation
design procedure
permeability
