J. Sens. Actuator Netw. 2015, 4(2), 50-66; doi:10.3390/jsan4020050
Comprehensive Design and Propagation Study of a Compact Dual Band Antenna for Healthcare Applications
1
School of Electronic Engineering and Computer Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK
2
Department of Electrical and Electronic Engineering, Primeasia University, Kemal Ataturk Avenue, Banani, Dhaka-1213, Bangladesh
3
Department of Electrical and Computer Engineering, Texas A&M University at Qatar, PO Box 23874, Education City Doha, Qatar
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These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Stefan Fischer
Received: 11 December 2014 / Revised: 5 January 2015 / Accepted: 11 March 2015 / Published: 2 April 2015
(This article belongs to the Special Issue Body Area Networks)
Abstract
In this paper, a dual band planar inverted F antenna (PIFA) has been investigated for cooperative on- and off-body communications. Free space and on-body performance parameters like return loss, bandwidth, radiation pattern and efficiency of this antenna are shown and investigated. The on- and off-body radio propagation channel performance at 2.45 GHz and 1.9 GHz have been investigated, respectively. Experimental investigations are performed both in the anechoic chamber and in an indoor environment. The path loss exponent has been extracted for both on- and off-body radio propagation scenarios. For on-body propagation, the path loss exponent is 2.48 and 2.22 in the anechoic chamber and indoor environment, respectively. The path loss exponent is 1.27 for off-body radio propagation situation. For on-body case, the path loss has been characterized for ten different locations on the body at 2.45 GHz, whereas for off-body case radio channel studies are performed for five different locations at 1.9 GHz. The proposed antenna shows a good on- and off-body radio channel performance. View Full-TextKeywords:
dual band; planar inverted F antenna; on/off-body communications; on/off-body radio channel; path loss; body area networks; body-centric wireless communications
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Khan, M.M.; Abbasi, Q.H.; Ashique, R.H. Comprehensive Design and Propagation Study of a Compact Dual Band Antenna for Healthcare Applications. J. Sens. Actuator Netw. 2015, 4, 50-66.
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