4th International Engineering Conference on Developments in Civil & Computer Engineering Applications (IEC2018)
Title: EFFICIENT TECHNIQUES TO MINIATURIZE THE SIZE OF PLANAR CIRCULAR MONOPOLE ANTENNA
Authors: Y. A. Fadhel, R. M. Abdulhakim
DOI: 10.23918/iec2018.17
Abstract: Recently different techniques have been adopted by many researcher to minimize the size of antennas being employed in compact devices. In this paper miniaturization of a planar circular monopole antenna (PCMA) has been introduced while maintaining its working range of frequencies covering the UWB range (3.1~10.6 GHz). Two different techniques are suggested; firstly, the PCMA radiator has been modified by eliminating areas with least concentrated current distribution, which led to generation of a crescent-shape radiator and the overall size reduction reached 11.76% of the original size. Secondly, the edge of the circular radiator has been corrugated according to some suggested formulas, which increased the size reduction to about 42.6%. Another advantage has been achieved for the corrugated PCMA by extending the upper limit of its impedance bandwidth to 13.85 GHz. All designed antennas have been fabricated and verified via practical experimental measurements. Simulated and measured results have shown that both techniques were succeeded in miniaturizing the overall size of PCMA antenna, but precisely, corrugation technique was more efficient.
Keywords: Miniaturized Antennas, PCMA, Crescent-Shaped, Corrugation, UWB.
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