一种使用集总参数元件实现的一分四功率分配器  

Analysis and design of 1:4 power dividers using the lumped-element transmission lines

作　　者：徐敏[1] 贾建华[1] 

机构地区：[1]同济大学电子与信息工程学院,上海201804

出　　处：《电子测量技术》2008年第1期69-71,共3页Electronic Measurement Technology

摘　　要：功率分配是一种常用的无源器件,随着通信设备小型化的要求越来越高,无源器件的体积成为其发展瓶颈。本文基于Wilkinson功率分配器的结构,采用集中参数元件和电容负载法,设计了一种新型的一分四功率分配器,有效减少了电路尺寸。此功率分配器4端口输出,将输入功率进行4等分。使用ADS软件进行仿真,采用非理想元件,减小体积的情况下,由于电路的偶合效应致使性能略有下降。但是有限的带宽仍然是一个有待解决的问题。Power divider is a general passive component. With the development of communication devices, it is necessary to use components in smaller size, which is the bottleneck in this field. This paper presents the design of a 1： 4 power divider based on Wilkinson power splitters with lumped-element and capacitive loading. In this way, the size of the circuits is miniaturized, and the cost in fabrication is low. The divider has four output ports, and each port gets quarter power from the input port. At last, use ADS to simulate the design. Considering the coupling effect, performance descends a little. This paper also discusses the results and suggestions. The limited bandwidth is also an exiting problem.

关 键 词：集总参数 功率分配器 微带传输线 ADS 

分 类 号：TN73[电子电信—电路与系统]