Title :
Pattern-reconfigurable antenna for on-body communication
Author :
Mei Li ; Shao-Qiu Xiao ; Bing-Zhong Wang
Author_Institution :
Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol., Chengdu, China
Abstract :
A compact, low-profile pattern-reconfigurable antenna working at 2.4GHz is presented in this paper. The antenna exhibits two symmetrical switchable tilted beams with the maximum radiations at around ±60° off the z-axis in elevation plane. In contrast to omnidirectional antennas, directional antennas that can change their beam direction according to the location of sensors are beneficial in terms of energy consumption, signal sensitivity and long communication range. The proposed antenna can be used for on-body communication in some cases beam tilts are desired, for example the paths in the belt-to-wrist. The characteristics of antenna in free space and placed above a simplified human tissue are analyzed.
Keywords :
bioelectric phenomena; biological tissues; biomedical equipment; body area networks; directive antennas; surface impedance; telemedicine; wave propagation; wearable antennas; beam direction change; beam tilting; belt-to-wrist paths; compact pattern-reconfigurable antenna; energy consumption; free space antenna; frequency 2.4 GHz; human tissue; long communication range; low-profile pattern-reconfigurable antenna; maximum beam radiations; omnidirectional antennas; on-body communication; sensor location dependence; signal sensitivity; symmetrical switchable tilted beams; Antenna measurements; Antenna radiation patterns; Microwave antennas; Surface impedance; Surface waves; HIS surface; On-body communication; low-profile; pattern-reconfigurable antenna; tilted beam;
Conference_Titel :
Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO), 2013 IEEE MTT-S International
Conference_Location :
Singapore
DOI :
10.1109/IMWS-BIO.2013.6756203
