Title :
Sensitivity of a wearable printed antenna with a full ground plane in close proximity to human arm
Author :
Abbas, Syed Muzahir ; Ranga, Yogesh ; Esselle, Karu P.
Author_Institution :
Dept. of Eng., Macquarie Univ., Sydney, NSW, Australia
Abstract :
This paper presents sensitivity analysis of a printed antenna with a full ground plane, suitable for wearable armbands and other such body area network devices operating in the industrial, scientific, and medical (ISM) band (2.45 GHz). Antenna input impedance and radiation characteristics are presented along with the parametric analyses. Antenna performance is investigated in free space and in close proximity to various human arm models (i.e. flat, rectangular and elliptical). The full ground plane makes the antenna highly insensitive to the gap between the antenna and the arm in addition to reducing electromagnetic radiation absorption in the arm. Small width (14mm) of the antenna makes it feasible to position along the length of a human arm without bending, which causes shift in resonant frequency.
Keywords :
UHF antennas; antenna radiation patterns; body area networks; electromagnetic wave absorption; microstrip antennas; sensitivity analysis; wearable antennas; ISM band; antenna input impedance; body area network devices; electromagnetic radiation absorption; frequency 2.45 GHz; full ground plane; human arm models; parametric analyses; printed antenna; radiation characteristics; resonant frequency; sensitivity analysis; size 14 mm; wearable armbands; Antenna radiation patterns; Body area networks; Feeds; Microwave antennas; Resonant frequency; Sensitivity; Body centric; Conformal; Full ground plane; Human arm; ISM; On-body; Printed antenna; Wearable;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
