Title :
Textile Artificial Magnetic Conductor waveguide sheet with monopole antennas for body centric communication
Author :
Kamardin, K. ; Rahim, M.K.A. ; Hall, Peter S. ; Samsuri, N.A. ; Jalil, M.E. ; Ayop, O.
Author_Institution :
Fac. of Electr. Eng., Univ. Teknol. Malaysia, Skudai, Malaysia
Abstract :
A textile Artificial Magnetic Conductor (AMC) sheet-like waveguide made of fleece fabric with a wideband coplanar monopoles were designed. The AMC surface is designed to have in-phase reflection at 2.45GHz with the aim to improve the transmission between antennas. The S11 and S21 performances of two antennas with textile AMC sheet was investigated in a free space environment as well as near to human body setting. The effect of different antennas´ orientations was also considered. Compared to free space environment, S21 transmission between two antennas was enhanced up to maximum -5.7dB when textile AMC waveguide sheet was placed beneath them. Significant transmission improvement has been observed for both off-body and on-body placements. The in-phase reflection characteristic of the AMC contributes to the transmission enhancement.
Keywords :
UHF antennas; biomedical communication; broadband antennas; conductors (electric); coplanar waveguides; electromagnetic wave reflection; fabrics; magnetic monopoles; monopole antennas; sheet materials; textile technology; transmitting antennas; wearable antennas; AMC; S11 performance; S21 performance; antenna transmission; body centric communication; fleece fabric; free space environment; frequency 2.4 GHz; human body setting; in-phase reflection characteristics; monopole antenna; off-body placement; on-body placement; textile artificial magnetic conductor waveguide sheet; wideband coplanar monopole; Antenna measurements; Electromagnetic waveguides; Reflection; Textiles; Transmitting antennas; Artificial Magnetic Conductor; Body Centric Wireless Communication; Coplanar Monopole Antenna; Sheet-like Waveguide; Textile AMC;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
