Arbitrarily dual-band components using simplified structures of conventional CRLH TLs

被引：61

作者：

Lin, Xian Qi ^{[1
]}

Liu, Ruo Peng

Yang, Xin Mi

Chen, Ji Xin

Yin, Xiao Xing

Cheng, Qiang

Cui, Tie Jun

机构：

[1] Southeast Univ, Ctr Computat Electromagnet, Nanjing 210096, Peoples R China

[2] Southeast Univ, State Key Lab Millimeter Waves, Nanjing 210096, Peoples R China

[3] Zhejiang Univ, Coll Informat Sci & Engn, Hangzhou 310027, Peoples R China

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2006年 / 54卷 / 07期

基金：

中国国家自然科学基金;

关键词：

branch-line coupler; composite right/left-handed (CRLH) structure; dual band; nonlinear phase response; transmission line (TL);

D O I：

10.1109/TMTT.2006.877434

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：

Microwave components with nonlinear phase responses are developed using a simplified composite right/left-handed (CRLH) transmission-line (TL) structure without the series capacitance or the shunt inductance. Using such a simplified CRLH structure, arbitrarily dual-band microstrip components have been realized in compact sizes such as a quarter-wavelength short-circuited stub and dual- band branch-line couplers. Simulation and measurement results are given to demonstrate the efficiency and good performance of the proposed components. For the quarter- wavelength short-circuited stub based on the simplified CRLH-TL structure without the series capacitance, it has been shown that the insertion loss is less than -0.1 dB. For the arbitrarily dual-band branch-line coupler, experiment results exhibit that S-21 and S-31 are larger than -3.6 dB, the isolations are smaller than -30 dB, the return losses are smaller than -20 dB, and the phase differences are within 90 degrees +/- 1.8 degrees.

引用

页码：2902 / 2909

页数：8

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