Title :
A size-reduced wearable antenna for Zigbee indoor localization
Author :
El Khashab, Effat O. ; Hammad, Hany F.
Author_Institution :
Fac. of Inf. Eng. & Technol., German Univ. in Cairo, Cairo, Egypt
Abstract :
In this paper, a size-reduced wearable microstrip patch antenna is presented. The antenna is developed for a Zigbee platform for Child Indoor Localization purposes. It is to operate at 2.4 GHz, with a linearly polarized radiation. For the wearable antenna, a conductive textile was used, namely Shieldit, and for the substrate layer, a 3.5 mm felt fabric was used. The multislots-loading technique was utilized, resulting in a 62% size reduction of the patch size compared to the size of a regular rectangular patch antenna. The reduced size design achieved a fractional bandwidth of 1.4%. Furthermore, investigations were conducted on different antenna bending and the antenna´s performance in proximity to human body.
Keywords :
Zigbee; indoor radio; microstrip antennas; substrates; wearable antennas; Zigbee indoor localization; child indoor localization; conductive textile; fractional bandwidth; frequency 2.4 GHz; linearly polarized radiation; multislots-loading technique; patch size reduction; rectangular patch antenna performance; size 3.5 mm; size-reduced wearable microstrip patch antenna bending; substrate layer; Antenna radiation patterns; Bandwidth; Biomedical monitoring; Microstrip antennas; Patch antennas; Textiles; Microstrip antennas; conductive textiles; fabric substrates; multislots loading technique; size reduction; wearable antennas;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2012 IEEE
Conference_Location :
Santa Clara, CA
Print_ISBN :
978-1-4577-1153-4
DOI :
10.1109/RWS.2012.6175349
