Design of Compact Quad-Frequency Impedance Transformer Using Two-Section Coupled Line

被引：21

作者：

Bai, Yan-Fu ^{[1
]}

Wang, Xin-Huai ^{[1
]}

Gao, Chang-Jia ^{[1
]}

Huang, Qiu-Lin ^{[1
]}

Shi, Xiao-Wei ^{[1
]}

机构：

[1] Xidian Univ, Natl Key Lab Antennas & Microwave Technol, Xian 710071, Peoples R China

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2012年 / 60卷 / 08期

基金：

美国国家科学基金会;

关键词：

Coupled line; impedance transformer; quad frequency; BROAD-BAND;

D O I：

10.1109/TMTT.2012.2202682

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a compact quad-frequency impedance transformer that is composed of a two-section coupled line to achieve ideal impedance matching at three arbitrary frequencies and a related frequency. The exact closed-form equations and design procedures are given based on strict theoretical analysis. After demonstrating the bandwidth performance and symmetry properties of different impedance transform ratios, we fabricated a circuit to show the validity of practical applications. Good agreement between the measured data and anticipated results is achieved.

引用

页码：2417 / 2423

页数：7

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