期刊
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
卷 14, 期 -, 页码 1447-1450出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2015.2411263
关键词
Impulse radio (IR); monopole; on-body antenna; phantom; TM41 mode; ultrawideband (UWB) antenna; wireless body area network (WBAN)
资金
- Ministry of Science, ICT & Future Planning (MSIP), Korea, under the Convergence Information Technology Research Center (CITRC) [NIPA-2014-H0401-14-1001]
- Ministry of Public Safety & Security (MPSS), Republic of Korea [H8601-15-1005] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A compact ultrawideband (UWB) antenna for on-body communications is proposed herein. The antenna consists of a mono-cone and a shorted ring patch. By using a ring patch with four shorting pins, the proposed antenna operates at TM41 resonance mode in the low-frequency band and achieves a compact low-profile structure with monopole-like radiation characteristics. The antenna has overall dimensions of 64 mm x 64 mm x 7 mm (0.64 lambda(0) x 0.64 lambda(0) x 0.07 lambda(0) at 3 GHz) in the impulse radio UWB (3.1 GHz - 10.6 GHz) band and a 10-dB return loss bandwidth of 121.1% in the range from 2.8 to 11.4 GHz. The antenna performance was simulated and measured in free space and on a homogeneous human equivalent phantom to account for the human body effect. The results show that the antenna characteristics are relatively stable regardless of the existence of a human phantom.
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