Title :
Switchable textile microstrip antenna for on/off-body communications and shape distortion study
Author :
Bai, Qiang ; Lee, Hyung-Joo ; Ford, Kenneth L. ; Langley, Richard J.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Sheffield, Sheffield, UK
Abstract :
This paper presents the performance of a switchable textile microstrip antenna on stripline working at 2.45GHz. It has on/off-body communication modes which are controlled by two PIN diodes. The results show antenna gain of 2dBi in the off-body mode, and approximately 2dB transmission loss within 100mm distance in the on-body mode. A bending test is also applied to a microstrip antenna in order to further understand the textile antenna performance under shape distortion conditions. Both input impedance and radiation patterns are investigated based on numerical and experimental methods.
Keywords :
UHF antennas; antenna radiation patterns; antenna testing; bending; body area networks; distortion; microstrip antennas; p-i-n diodes; strip lines; textiles; wearable antennas; PIN diodes; antenna input impedance; antenna radiation patterns; bending test; body area networks; distance 100 mm; frequency 2.45 GHz; on-off-body communication mode; shape distortion study; switchable textile microstrip antenna; Antenna measurements; Antenna radiation patterns; Microstrip; Microstrip antennas; Switches; Textiles; off-body communication; on-body communication; switchable body-centric communication; textile microstrip patch antenna; textile stripline;
Conference_Titel :
Antennas and Propagation (APCAP), 2012 IEEE Asia-Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-0666-9
DOI :
10.1109/APCAP.2012.6333174
