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

Y. Ranga*, Karu P. Esselle, A. R. Weily, A. K. Verma

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

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, proximitycoupled (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.

Original languageEnglish
Pages (from-to)1261-1264
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume52
Issue number6
DOIs
Publication statusPublished - Jun 2010

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