NDLI: Theoretical and measured electric field distributions within an annular phased array: Consideration of source antennas

Content Provider	IEEE Xplore Digital Library
Author	Zhang, Y. Joines, W.T. Jirtle, R.L. Samulski, T.V.
Copyright Year	1964
Abstract	A detailed calculation of sources and electric fields associated with a prototype annular phased array for clinical hyperthermia is presented. Two antenna current distributions are used as field sources. One is based on a linear dipole model. The second models the thin strip antenna elements in detail, and the current is derived using the theory of a microstrip transmission line. These currents are then used to calculate the magnetic vector potential and the electric field. To verify the theoretical simulations, the magnitude of the electric field is measured under the same conditions as those used in the theoretical simulations. The comparison between measured and calculated fields demonstrates better convergence of theory and experiment when the antenna sources are modeled in detail. Thus, the use of these results for an improved incident-scatter model that will allow more general calculations of E fields in inhomogeneous media with irregular geometries is anticipated.<>
Sponsorship	IEEE Engineering in Medicine and Biology Society
Page Count	8
File Size	1294336
Starting Page	780
Ending Page	787
File Format	PDF
ISSN	00189294
Volume Number	40
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phased arrays Antenna measurements Electric variables measurement Phase measurement Antenna arrays Antenna theory Magnetic field measurement Dipole antennas Microstrip antennas Transmission line measurements
Content Type	Text
Resource Type	Article
Subject	Biomedical Engineering

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