Wearable Antenna for Power Efficient On-Body and Off-Body Communications

Mohammad Monirujjaman Khan, Md. Azizur Rahman, Md. Abu Talha, Tarannum Mithila

1Electronics and Telecommunication Engineering, University of Liberal Arts Bangladesh, Dhaka, Bangladesh 2School of Electronic Engineering and Computer Science, Queen Mary University of London, London, UK.
Department of Computer & Information Technology, London School of Technology, London, UK.
Electronics and Telecommunication Engineering, University of Liberal Arts Bangladesh, Dhaka, Bangladesh.

DOI: 10.4236/jemaa.2014.69024                

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.

Keywords

Dual Band, Diverse Radiation Pattern, Power Efficient On-Body Communications, Power Efficient Off-Body Communications, Body-Centric Wireless Communications

Conflicts of Interest

The authors declare no conflicts of interest.

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