Vol. 96

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2022-06-21

A Low-Cost Miniaturized Flower-Shaped Printed Antenna with Enhanced Bandwidth for UWB Applications

By Nella Anveshkumar, Jai Mangal, Sudipta Das, Boddapati Taraka Madhav, and Wael Abd Ellatif Ali
Progress In Electromagnetics Research B, Vol. 96, 1-18, 2022
doi:10.2528/PIERB22031704

Abstract

This paper reports a novel, cost effective, and compact ultra-wideband (UWB) antenna for applications in an unlicensed-frequency band of 3.1-10.6 GHz. To achieve the UWB operation, a novel concept of annular shapes, circular slot combinations, and partial ground is employed. Furthermore, the proposed antenna with novel configuration occupies an attractive size of only 18×12 mm2 which allows compatibility with portable UWB application devices. This flower-horn shaped UWB antenna is printed on a cost-effective FR-4 substrate, which exhibits a dielectric-constant of 4.4 and a loss-tangent of 0.019. The fabricated prototype is experimentally tested, and measured results validate the design approach of presented UWB antenna. The measured results confirm its UWB characteristics covering 3.1-11.2 GHz with S11 ≤ -10 dB. Also, a maximum peak-gain of 5.05 dBi at 9 GHz and a minimum radiation-efficiency of 94.35% are noted in the full operating-band. A good agreement has been obtained between the simulated and measured results in terms of reflection-coefficient, gain, radiation-efficiency, radiation patterns and group delay which confirm the suitability of suggested small printed antenna for the intended UWB applications.

Citation


Nella Anveshkumar, Jai Mangal, Sudipta Das, Boddapati Taraka Madhav, and Wael Abd Ellatif Ali, "A Low-Cost Miniaturized Flower-Shaped Printed Antenna with Enhanced Bandwidth for UWB Applications," Progress In Electromagnetics Research B, Vol. 96, 1-18, 2022.
doi:10.2528/PIERB22031704
http://jpier.org/PIERB/pier.php?paper=22031704

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