Vol. 124

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2022-09-09

Gain Enhanced Characteristics of Miniaturized Antenna for 5 GHz WLAN Application

By Kakani Suvarna, Nallagarla Ramamurthy, and Dupakuntla Vishnu Vardhan
Progress In Electromagnetics Research C, Vol. 124, 23-32, 2022
doi:10.2528/PIERC22062305

Abstract

In this article, a miniaturized pentagonal slot antenna (PSA) with a Meander Koch Defected Ground Structures (MK-DGS) and metamaterials (MTM) is proposed for 5 GHz WLAN application. Initially, a Meander Koch DGS was used to lower the resonant frequency of the basic PSA, from 13.1 GHz to 5 GHz. The proposed antenna has been 61.83% miniaturized, close to an electrically small antenna. The performance characteristics of a basic PSA using MK-DGS and MTM superstrate, which improves efficiency, directivity, and peak gain, are also discussed. An antenna with dimensions of 15 × 15 mm2 (or) 0.25λ0 × 0.25λ0 mm2 at a thickness of h1 = 1.6 mm is designed, fabricated, and tested on an FR4 epoxy substrate, and its impact on size reduction performance is evaluated. The gain at 5 GHz is increased from 3.15 to 7.84 dBi by introducing an MTM superstrate made of RT Duriod at a thickness of 1.575 mm above the miniaturized PSA at 17 mm. Test results of the prototype model are corroborated by the simulated results of the proposed model.

Citation


Kakani Suvarna, Nallagarla Ramamurthy, and Dupakuntla Vishnu Vardhan, "Gain Enhanced Characteristics of Miniaturized Antenna for 5 GHz WLAN Application," Progress In Electromagnetics Research C, Vol. 124, 23-32, 2022.
doi:10.2528/PIERC22062305
http://jpier.org/PIERC/pier.php?paper=22062305

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