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A printed antenna with constant gain over a wide bandwidth for ultra-wideband applications

✍ Scribed by Y. Ranga; Karu P. Esselle; A.R. Weily; A. K. Verma

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
514 KB
Volume
52
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A constant‐gain printed circular monopole antenna (PCMA) is presented that operates from 4 to 12 GHz. The gain of the PCMA is enhanced with the use of surface‐wave excited, proximity‐coupled (SW‐PC), conductor‐backed, twin‐slot radiators. A significant improvement in 2 and 3 dB peak gain bandwidth in the XY plane (θ = 90°) is achieved, and the peak measured gain of the antenna is nearly constant (5.5 dBi ± 1.5 dB) from 3 to 10 GHz. It has a very broad radiation pattern in the azimuth plane and a typical figure of eight pattern in the elevation plane. The antenna is also compact, robust, and easy to fabricate. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1261–1264, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25157

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