WIDEBAND IMPEDANCE TRANSFORMER WITH OUT-OF-BAND SUPPRESSION CHARACTERISTICS

被引：22
|
作者：
Kim, Phirun [1 ]
Chaudhary, Girdhari [1 ]
Jeong, Yongchae [1 ]
机构：
[1] Chonbuk Natl Univ, IT Convergence Res Ctr, Div Elect & Informat Engn, Jeonju, South Korea
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2014年 / 56卷 / 11期
关键词：
coupled line; transmission zeros; wideband impedance transformer; COUPLED TRANSMISSION-LINES; DESIGN;
D O I：
10.1002/mop.28664
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 article presents the design of a wideband impedance transformer with out-of-band suppression characteristics. The out-of-band suppression characteristics are obtained by loading several transmission zeros at both the lower and upper stop-bands. For experimental validation, a 50-to-25 Omega transformer has been implemented at a center frequency (f(0)) of 2.6 GHz. The measured results were in good agreement with simulations, showing a return loss better than 20 dB over 0.92 GHz (2.1-3.02 GHz) and an out-of-band suppression better than 18 dB over DC to 1.42 and 3.8 to 6.65 GHz. (C) 2014 Wiley Periodicals, Inc.
引用
收藏
页码：2612 / 2616
页数：6
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