Zobrazeno 1 - 10
of 40
pro vyhledávání: '"G. M. Ryan"'
Autor:
Perera, G. M. Ryan
Video data claims a significant portion of global mobile data communications, currently standing at 55%. This demand outburst has been due to exceptional display technologies, on-demand video, gaming and live video streaming, to name a few. Despite t
Externí odkaz:
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.736884
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 14:470-473
In this letter, we present circularly polarized (CP) patch antennas that achieve up to 70% optical transparency by using a wire-mesh patch and by cutting the same grid pattern through the substrate. Glass or quartz wafers are therefore not needed, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80161a5a120c594189e584493525851d
https://doi.org/10.1109/lawp.2014.2368115
https://doi.org/10.1109/lawp.2014.2368115
Publikováno v:
International Journal of RF and Microwave Computer-Aided Engineering. 22:459-468
This article presents an overview of the generalized negative-refractive-index transmission-line (G-NRI-TL) and summarizes the design equations that determine the frequencies of each of its four passbands. Specific multiband devices to which G-NRI-TL
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::727bce2788d60c673cf418d298441a83
https://doi.org/10.1002/mmce.20636
https://doi.org/10.1002/mmce.20636
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 11:1277-1280
A two-antenna system employing wideband metamaterial-inspired meander-line antennas with a maximum separation of λ0/5 is presented, and a very wide measured -10 dB return-loss bandwidth from 3.3 to 6 GHz is obtained. Orthogonal characteristic modes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69db0492c5fc0f968fc573eb048dbc40
https://doi.org/10.1109/lawp.2012.2225134
https://doi.org/10.1109/lawp.2012.2225134
Autor:
Apisak Ittipiboon, Joey R. Bray, Mohammad Reza Chaharmir, J. Shaker, Colan G. M. Ryan, Yahia M. M. Antar
Publikováno v:
IEEE Transactions on Antennas and Propagation. 58:1486-1493
A four-layer transmitarray operating at 30 GHz is designed using a dual-resonant double square ring as the unit cell element. The two resonances of the double ring are used to increase the per-layer phase variation while maintaining a wide transmissi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62f34a39807c52992757805abd4d6429
https://doi.org/10.1109/tap.2010.2044356
https://doi.org/10.1109/tap.2010.2044356
Akademický článek
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Publikováno v:
2012 IEEE/MTT-S International Microwave Symposium Digest.
An all-pass microstrip generalized negative-refractive-index transmission line is presented. A very wide return loss bandwidth (1GHz – 8 GHz) is obtained while preserving the quad-band phase characteristics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ceff79cd37052a217e7ae281ac226ab
https://doi.org/10.1109/mwsym.2012.6259660
https://doi.org/10.1109/mwsym.2012.6259660
Publikováno v:
2012 6th European Conference on Antennas and Propagation (EUCAP).
A compact metamaterial meander-line antenna is presented which achieves co-directed currents on the antenna arms. Due to the introduction of an additional resonance, a very wide measured −10 dB return loss bandwidth from 3.5 GHz to 6 GHz is obtaine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e628a0c19924471bb8fedb80281239d3
https://doi.org/10.1109/eucap.2012.6206297
https://doi.org/10.1109/eucap.2012.6206297
Publikováno v:
2011 IEEE MTT-S International Microwave Symposium.
Summary form only given, as follows. A dual-band printed metamaterial coupler made of a microstrip line and a generalized negative-refractive-index line is presented. Due to the presence of two left-handed bands in the unit cell, backward coupling oc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6887237d976443cba9c8d5f9e9390610
https://doi.org/10.1109/mwsym.2011.5972923
https://doi.org/10.1109/mwsym.2011.5972923
Publikováno v:
2010 IEEE Antennas and Propagation Society International Symposium.
A composite right/left-hand microstrip leaky-wave antenna exhibits beam scanning from backward to forward end-fire directions and even through broadside as the frequency is swept over the left- and right- handed passbands. In this paper, we propose a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4a310a537e67b617307aed7fca33e0e
https://doi.org/10.1109/aps.2010.5561033
https://doi.org/10.1109/aps.2010.5561033