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Title: A broadband and high-gain metamaterial microstrip antenna
Authors: Li, L.-W. 
Li, Y.-N.
Yeo, T.S. 
Mosig, J.R.
Martin, O.J.F.
Issue Date: 19-Apr-2010
Source: Li, L.-W., Li, Y.-N., Yeo, T.S., Mosig, J.R., Martin, O.J.F. (2010-04-19). A broadband and high-gain metamaterial microstrip antenna. Applied Physics Letters 96 (16) : -. ScholarBank@NUS Repository.
Abstract: A broad bandwidth and high gain rectangular patch antenna was specifically designed in this paper using planar-patterned metamaterial concepts. Based on an ordinary patch antenna, the antenna has isolated triangle gaps and crossed strip-line gaps etched on the metal patch and ground plane, respectively. Demonstrated to have left-handed characteristics, the patterned metal patch and finite ground plane form a coupled capacitive-inductive circuit of negative index metamaterial. It is shown to have great impact on the antenna performance enhancement in terms of the bandwidth significantly broadened from a few hundred megahertz to a few gigahertz, and also in terms of high efficiency, low loss, and low voltage standing wave ratio. Experimental data show a reasonably good agreement between the simulation and measured results. This antenna has strong radiation in the horizontal direction for some specific applications within the entire band. © 2010 American Institute of Physics.
Source Title: Applied Physics Letters
ISSN: 00036951
DOI: 10.1063/1.3396984
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