NDLI: Excitation and propagation of waves on human arm models

Content Provider	IEEE Xplore Digital Library
Author	Hesselbarth, J. Frohlich, J. Vahldieck, R.
Copyright Year	2010
Description	Author affiliation: Laboratory for Electromagnetic Fields and Microwave Electronics (IFH), Swiss Federal Institute of Technology Zurich (ETH), 8092, Switzerland (Hesselbarth, J.; Frohlich, J.; Vahldieck, R.)
Abstract	This paper investigates scenarios of wireless transmission on human arm models. Two different arm models are considered: a PMMA pipe filled with muscle-tissue simulating liquid is used for both simulations and measurements, and a three-layer model whose geometry was obtained from a magnetic-resonance imaging (MRI) scan of a human arm is considered in simulations. Numerical simulations and measurements are carried out at a frequency of 4.1 GHz. Waves coupling transmitter and receiver are most efficiently excited by monopole-like radiators oriented perpendicularly to the surface. Efficient excitation is also possible by dipole-like radiators oriented parallel to the surface and aligned with the direction of wave propagation. Note that in this case, the dipole far-field pattern has a null in the direction of propagation. The worst excitation is obtained by dipoles parallel to the surface and oriented transversely to the propagation direction. All results support the finding that surface-wave like propagation occurs along and around the human arm, and efficient excitation of these waves can be achieved by antenna near-fields.
Starting Page	5
Ending Page	8
File Size	714298
Page Count	4
File Format	PDF
ISBN	9781424472338
ISSN	21533652
e-ISBN	9782874870187
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-27
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	EUROPEAN MICROWAVE ASSOC
Subject Keyword	Surface impedance Dipole antennas Surface waves Atmospheric modeling Transmitting antennas Numerical models
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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