TITLE:
Wearable Antenna for Power Efficient On-Body and Off-Body Communications
AUTHORS:
Mohammad Monirujjaman Khan, Md. Azizur Rahman, Md. Abu Talha, Tarannum Mithila
KEYWORDS:
Dual Band, Diverse Radiation Pattern, Power Efficient On-Body Communications, Power Efficient Off-Body Communications, Body-Centric Wireless Communications
JOURNAL NAME:
Journal of Electromagnetic Analysis and Applications,
Vol.6 No.9,
August
28,
2014
ABSTRACT:
A novel dual-band
and diverse radiation pattern antenna is proposed for power efficient on-body
and off-body communications intended for various applications in healthcare and
sport monitoring. The antenna is dual band at 2.45 GHz (ISM band) with
omnidirectional radiation pattern over the body surface to communicate power
efficiently with other co-located body worn devices and at 1.9 GHz (PCS band),
it has directive radiation pattern towards off the body to communicate from
on-body device to off-body devices. The free space and on-body performances of
the antenna are investigated by both simulation and experiment. The antenna
shows very good on-body radiation efficiency of 58% at 2.45 GHz and 61% at 1.9
GHz. Good on-body gain is noticed at both frequency bands. Results show that
the gain of the proposed antenna increases by 4.7% at 2.45 GHz and 3.2% at 1.9
GHz when placed on the body.