DESIGN AND PERFORMANCE ANALYSIS OF UWB CIRCULAR RING ANTENNA WITH DEFECTED GROUND STRUCTURE

ICTACT Journal on Communication Technology ( Volume: 8 , Issue: 4 )

Abstract

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A compact circular ring antenna with defected ground structure (DGS) has been design for Ultra-Wide Band (UWB) applications. Initially, a circular patch antenna is design by introducing a rectangular DGS structure. Further, slot has been inserted in circular patch to improve the impedance bandwidth. The proposed design covers the frequency range of 2.4-10.4GHz below -10dB. Proposed antenna has design and fabricated on FR-4 substrate having 1.5mm, 4.3 thickness and dielectric constant, respectively. The performance of the designed antenna is analyzing with optimized dimensions in terms of return loss, VSWR, radiation pattern, gain characteristics, group delay and surface current distributions. Further, performance analysis of the proposed antenna has also been compared with existing suggested antennas in literature with compact in size. The fabricated antenna shows a good result with simulations software.

Authors

Neha Tanzeem Sagar, M L Meena, Pankaj Shukla
Rajasthan Technical University, India

Keywords

Circular Ring, Defected Ground Structure, Fractional Bandwidth, Micro-Strip, Ultra-Wideband

Published By
ICTACT
Published In
ICTACT Journal on Communication Technology
( Volume: 8 , Issue: 4 )
Date of Publication
December 2017
Pages
1656-1663

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