Dielectric Director for Near-Field Microwave Imaging
Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany
Proceedings: EuCAP 2009
Pages: 4Language: englishTyp: PDF
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Authors:
Bourqui, Jeremie; Okoniewski, Michal; Fear, Elise (#Department of Electrical and Computer Engineering, University of Calgary, Calgary, AB, Canada)
Abstract:
A dielectric director has been introduced to enhance near-field radiation properties of ultra-wideband antennas. This paper presents a parametric study of selected parameters that define the director used to improve the radiation behavior of a balanced antipodal Vivaldi antenna. The near-field radiation distortion and intensity are of interest. The director permittivity is found to be the key parameter that controls the near-field radiation behavior.