A TRI-BAND IMPEDANCE TRANSFORMER USING STUBBED COUPLING LINE

被引：18

作者：

Wang, Xin-Huai ^{[1
]}

Zhang, Li ^{[1
]}

Xu, Yin ^{[2
]}

Bai, Yan-Fu ^{[1
]}

Liu, Cheng ^{[1
]}

Shi, Xiaowei ^{[1
]}

机构：

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

[2] Xidian Univ, Sch Tech Phys, Xian 710071, Shaanxi, Peoples R China

来源：

PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2013年 / 141卷

基金：

中国国家自然科学基金;

关键词：

WILKINSON POWER DIVIDER; MATCHING NETWORKS; FREQUENCY; DESIGN;

D O I：

10.2528/PIER13042907

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：

In this paper, a compact tri-band impedance transformer by utilizing stubbed coupling line for matching a load at three arbitrary frequencies is proposed. The transformer is composed of two parts, and each part is constructed from parallel-coupled transmission lines. Two structures with different configurations of the proposed transformer have been given and analyzed. Then, the close-form equations for the transformer parameters are derived analytically, and the corresponding analytical design approach is verified by numerical examples. To certify the validity of design formulas, an impedance transformer is fabricated and measured at 0.9/1.8/3.2 GHz. Good experimental performances at each frequency are obtained, which are in good agreement with the simulated results.

引用

页码：33 / 45

页数：13

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