Design Methodology of Multi-Frequency Unequal Split Wilkinson Power Dividers Using Transmission Line Transformers
Design Methodology of Multi-Frequency Unequal Split Wilkinson Power Dividers Using Transmission Line Transformers
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DOI：
10.2528/pierb10042809
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发表时间：
2010
影响因子：
--
通讯作者：
A. Qaroot;N. Dib;A. Gheethan
中科院分区：
文献类型：
--
作者：
A. Qaroot;N. Dib;A. Gheethan
本文提出了一种新的简单的多频不等分流威尔金森功分器的设计方法。该方法是基于用N段传输线变压器代替传统的四分之一波WPD支路，实现N个频率下的WPD。通过使用集总电阻实现了良好的隔离，而无需对传统的WPD结构进行任何额外的修改。给出了任意设计频率和任意功率分流比下的分析、设计步骤和数学表达式。为了验证，设计并制作了1：2双频、1：2三频和1：2四频WPD。测量结果与本文提出的设计方法和全波模拟结果吻合较好。
In this paper, a new simple design procedure of multi- frequency unequal split Wilkinson power dividers (WPDs) is presented. The procedure is based on using N-sections of transmission line transformers, instead of the conventional quarter-wave WPD branches, to realize a WPD that operates at N frequencies. Good isolation is achieved by using lumped resistors without any extra modiflcation to the conventional structure of WPDs. The analysis, design procedure, and mathematical expressions are presented for arbitrary design frequencies, and arbitrary power split ratio. For veriflcation purposes, a 1 : 2 dual-frequency, a 1 : 2 tri-frequency, and a 1 : 2 quad-frequency WPDs are designed and fabricated. The measured results show good agreement with those obtained using the presented design methodology and with full-wave simulated results.