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Efficiency measurement of UWB and UHF antennas in small cavities of arbitrary shape

✍ Scribed by Jean-François Pintos; Sylvain Guivarch; Ali Louzir; Christophe Lemoine; Gwenn Le Fur; Philippe Besnier; Ala Sharaiha

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 228 KB
Volume: 51
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.24552

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✦ Synopsis

Abstract

A new method that extends the application of spherical Wheeler cap to relatively small cavities of any shape is presented for radiation efficiency estimation. We introduce a modified Huynh formulation to take into account cavity losses when they are non‐negligible for high frequencies. These assumptions are consistent with experimental results, which are based on antenna measurements in cubic cavities and for different frequency bands. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2193–2196, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24552

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