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IEICE TRANSACTIONS on Communications

Small Wearable Antenna with Folded Ground for Body-Centric Wireless Communications

Zhengyi LI, Kazuyuki SAITO, Masaharu TAKAHASHI, Koichi ITO

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Summary :

The miniaturization of electronic devices is leading to the creation of body-centric wireless communications, in which wireless devices are attached to human body. However, the human body environment is often uninviting for wireless signals owing to the mutual influence between the human body and wireless devices' antennas, namely wearable antennas. Therefore, wearable antennas need to be carefully designed. In this paper, a small wearable antenna with folded ground at 2.4 GHz is proposed. The folded ground has two effects: one is to improve efficiency and the other is to enhance bandwidth. When the antenna is very close to human body, it has an efficiency of 50.7% and a wide operation bandwidth of 130 MHz.

Publication
IEICE TRANSACTIONS on Communications Vol.E95-B No.1 pp.109-112
Publication Date
2012/01/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E95.B.109
Type of Manuscript
Special Section LETTER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2010)
Category
Antennas

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