Dual-Band Suspended-Plate Wearable Textile Antenna

A novel, dual-band wearable textile antenna fabricated using conductive textiles for operation in both ISM and HiperLAN applications is presented. Its concept is based on the suspended-plate antenna. It features a 60
$\,\times\,$
45 mm
$^2$
rectangular radiating element suspended over a 80
$\,\times\,$
60 mm
$^{2}$
ground plane using a 5-mm foam substrate. The proposed rectangular radiator is modified using slots, slits, and shorting posts to enable dual-band resonance and broad bandwidths in both frequency bands: 277 MHz (2.22–2.48 GHz) in the ISM and 850 MHz (4.95–5.80 GHz) in the HiperLAN band. The antenna radiates unidirectionally, and the ground plane avoids coupling to the users' body. The SP-WTA shows a total efficiency between 67% and 89% and a peak gain of 8.33 dB.