Dual composite right/left-handed (D-CRLH) leaky-wave antenna with low beam squinting and tunable group velocity

by: Christophe Caloz, Samer Abielmona, Hoang Van Nguyen, Andre Rennings

physica status solidi (b), Vol. 244, No. 4. (2007), pp. 1219-1226.

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Abstract

The propagation and radiation properties of dual composite right/left-handed (D-CRLH) transmission line metamaterials are presented, and validated experimentally with a 1D microstrip prototype. In its fast-wave regime, this structure operates as a leaky-wave antenna capable of backfire-to-endfire radiation scanning with beam squinting smaller than that of conventional CRLH (C-CRLH) antennas. It is shown that this D-CRLH beam squinting can be further reduced by increasing the group velocity but that this can occur, close (and possibly beyond) to luminal velocities, only at the expense of losses produced by parasitic effects, a fundamental limitation which is demonstrated via the Bloch impedance concept. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

@article{citeulike:1876661, abstract = {The propagation and radiation properties of dual composite right/left-handed (D-CRLH) transmission line metamaterials are presented, and validated experimentally with a 1D microstrip prototype. In its fast-wave regime, this structure operates as a leaky-wave antenna capable of backfire-to-endfire radiation scanning with beam squinting smaller than that of conventional CRLH (C-CRLH) antennas. It is shown that this D-CRLH beam squinting can be further reduced by increasing the group velocity but that this can occur, close (and possibly beyond) to luminal velocities, only at the expense of losses produced by parasitic effects, a fundamental limitation which is demonstrated via the Bloch impedance concept. ({\copyright} 2007 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim)}, address = {\'{E}cole Polytechnique de Montr\'{e}al, 2500, ch. de Polytechnique Montr\'{e}al, Qu\'{e}bec, H3T 1J4, Canada; IMST GmbH, Carl-Friedrich-Gauss-Str. 2, 47475 Kamp-Lintfort, Germany}, author = {Caloz, Christophe and Abielmona, Samer and Van Nguyen, Hoang and Rennings, Andre }, citeulike-article-id = {1876661}, doi = {10.1002/pssb.200674510}, journal = {physica status solidi (b)}, keywords = {antenna, d-crlh, leaky, metamaterial}, number = {4}, pages = {1219--1226}, posted-at = {2007-11-07 07:51:50}, priority = {2}, title = {Dual composite right/left-handed (D-CRLH) leaky-wave antenna with low beam squinting and tunable group velocity}, url = {http://dx.doi.org/10.1002/pssb.200674510}, volume = {244}, year = {2007} }

RIS record

TY - JOUR ID - citeulike:1876661 L3 - citeulike-article-id:1876661 TI - Dual composite right/left-handed (D-CRLH) leaky-wave antenna with low beam squinting and tunable group velocity JF - physica status solidi (b) VL - 244 IS - 4 SP - 1219 EP - 1226 AD - École Polytechnique de Montréal, 2500, ch. de Polytechnique Montréal, Québec, H3T 1J4, Canada; IMST GmbH, Carl-Friedrich-Gauss-Str. 2, 47475 Kamp-Lintfort, Germany N2 - The propagation and radiation properties of dual composite right/left-handed (D-CRLH) transmission line metamaterials are presented, and validated experimentally with a 1D microstrip prototype. In its fast-wave regime, this structure operates as a leaky-wave antenna capable of backfire-to-endfire radiation scanning with beam squinting smaller than that of conventional CRLH (C-CRLH) antennas. It is shown that this D-CRLH beam squinting can be further reduced by increasing the group velocity but that this can occur, close (and possibly beyond) to luminal velocities, only at the expense of losses produced by parasitic effects, a fundamental limitation which is demonstrated via the Bloch impedance concept. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) KW - antenna KW - d-crlh KW - leaky KW - metamaterial AU - Caloz, Christophe AU - Abielmona, Samer AU - Van Nguyen, Hoang AU - Rennings, Andre PY - 2007/// UR - http://dx.doi.org/10.1002/pssb.200674510 ER -

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