A novel mixed conventional microstrip and composite right/left-handed backward-wave directional coupler with broadband and tight coupling characteristics

by: C Caloz, T Itoh

Microwave and Wireless Components Letters, IEEE, Vol. 14, No. 1. (2004), pp. 31-33.

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Abstract

A novel backward directional coupler, composed of a conventional microstrip (C/spl mu/S) line and composite right/left-handed (CRLH) line, is proposed. This coupler is functionally backward but it is based on a forward-type coupling phenomenon. The coupler is shown to exhibit broad bandwidth and tight coupling characteristics. The theoretical circuit-model results are supported by full-wave and experimental evidence. A quasi 0-dB prototype with more than 50% bandwidth is demonstrated.

@article{citeulike:1992074, abstract = {A novel backward directional coupler, composed of a conventional microstrip (C/spl mu/S) line and composite right/left-handed (CRLH) line, is proposed. This coupler is functionally backward but it is based on a forward-type coupling phenomenon. The coupler is shown to exhibit broad bandwidth and tight coupling characteristics. The theoretical circuit-model results are supported by full-wave and experimental evidence. A quasi 0-dB prototype with more than 50\% bandwidth is demonstrated.}, author = {Caloz, C. and Itoh, T. }, booktitle = {Microwave and Wireless Components Letters, IEEE}, citeulike-article-id = {1992074}, journal = {Microwave and Wireless Components Letters, IEEE}, keywords = {broadband, coupler, crlh, directional, microstrip}, number = {1}, pages = {31--33}, posted-at = {2007-11-27 10:19:19}, priority = {2}, title = {A novel mixed conventional microstrip and composite right/left-handed backward-wave directional coupler with broadband and tight coupling characteristics}, url = {http://ieeexplore.ieee.org/xpls/abs\_all.jsp?arnumber=1264054}, volume = {14}, year = {2004} }

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TY - JOUR ID - citeulike:1992074 L3 - citeulike-article-id:1992074 TI - A novel mixed conventional microstrip and composite right/left-handed backward-wave directional coupler with broadband and tight coupling characteristics T2 - Microwave and Wireless Components Letters, IEEE JF - Microwave and Wireless Components Letters, IEEE VL - 14 IS - 1 SP - 31 EP - 33 N2 - A novel backward directional coupler, composed of a conventional microstrip (C/spl mu/S) line and composite right/left-handed (CRLH) line, is proposed. This coupler is functionally backward but it is based on a forward-type coupling phenomenon. The coupler is shown to exhibit broad bandwidth and tight coupling characteristics. The theoretical circuit-model results are supported by full-wave and experimental evidence. A quasi 0-dB prototype with more than 50% bandwidth is demonstrated. KW - broadband KW - coupler KW - crlh KW - directional KW - microstrip AU - Caloz, C AU - Itoh, T PY - 2004/// UR - http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1264054 ER -

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