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Virtual circular array using material-embedded linear source distributions

Appl. Phys. Lett. 95, 173503 (2009); doi:10.1063/1.3257374

Published 28 October 2009

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Do-Hoon Kwon
Department of Electrical and Computer Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
Linear arrays of sources embedded inside a thin material slab are designed such that they radiate the same fields as a circular array of radiators in free space in a two-dimensional configuration. The design is based on the coordinate transformation approach, where a circular domain containing a distribution of line sources is transformed into a rectangular slab. The source distribution in the transformed space forms two closely-spaced linear arrays and the resulting material slab is matched along the boundary with free space. Full-wave simulations are performed for verification. ©2009 American Institute of Physics
History: Received 31 July 2009; accepted 8 October 2009; published 28 October 2009
Permalink: http://link.aip.org/link/?APPLAB/95/173503/1
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KEYWORDS and PACS

Keywords
PACS
  • 41.20.Jb
    Electromagnetic wave propagation; radiowave propagation
  • 42.70.-a
    Optical materials
  • YEAR: 2009

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ISSN:
0003-6951 (print)   1077-3118 (online)
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