4.4 Article

Design and analysis of single and multi-input multioutput triple-band metamaterial inspired antennas for WiMAX, WLAN, and satellite applications

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WILEY
DOI: 10.1002/dac.5418

关键词

metamaterial; satellite TV; small antenna; triple-band; two-port MIMO; WiMAX; WLAN; X-band

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This paper proposes an electrical compact triple-bands antenna based on a composite left-/right-handed approach. The antenna is designed to have a lower resonant frequency and smaller physical dimensions compared to conventional antennas. It is produced on an FR4 substrate and provides three bandwidths. Additionally, a MIMO antenna is designed to achieve important isolation among ports and compatibility with wireless MIMO devices.
This work proposes an electrical compact triple-bands antenna founded on a composite left-/right-handed approach. This structure contains a rectangular patch combined with two unit cells based on the metamaterial properties that are used to produce wide electrical lengths in miniature physical sizes. Thus, the presented antenna is designed with a lower resonant frequency and miniature physical dimensions compared to conventional antennas. The suggested antenna has been produced on top of the FR4 substrate having tan delta = 0.022, epsilon r = 4.58, and a size of 28 x 16 x 1.6 mm(3). This structure provides three bandwidths of (2.391-2.54 GHz), (3.42-3.56 GHz), and (5.02-11.40 GHz). Additionally, a multi-input multioutput (MIMO) antenna is designed by placing two similar radiating patches in a perpendicular shape. Therefore, this design approach has been used to achieve an important isolation among ports and less than -30 dB at frequency bands. The results of radiation patterns, envelope correlation coefficient, diversity gain, and channel capacity loss are below to 0.06, 10 dB, and 0.4 b/s/Hz respectively, which confirms that the MIMO antenna is compatible with wireless MIMO devices. These antennas have been modeled and experimentally confirmed, and the results have proven that the suggested antennas are useable and can support multi-standard wireless applications.

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