Performance Enhancement and Size Reduction of Vivaldi Antenna Using Defected Ground Structure for Active Phased Array Radar Applications

Hamza Abbas Kiani, Channa Babar Ali, Syed Jehad Ali Shah, Muhammad Zubair Khan, Syed Aziz Shah, Abdulfattah Noorwali

Research output: Chapter in Book/Report/Conference proceedingConference proceedingpeer-review

Abstract

Wideband performance and size reduction of antennas are ostensible requirements of Wireless and Active Phased Array Radar Applications. The proposed paper aims to reduce the size of Planar Vivaldi Antennas to address these challenges by introducing defects in the ground plane of the antenna. The size of the Conventional Vivaldi Antenna specifically the width is reduced to 50% with the insertion of Defected Ground Structure (DGS). The effect of DGS was evaluated with the aid of four rectangular slots inserted on the two ground planes of the antenna (two on each ground plane). Optimal performance was achieved when these slots were inserted on the outer edges of the ground planes. Simulated results showed that the proposed Vivaldi Antenna offers 100% improvement in the impedance bandwidth even with the reduced size. Similarly, the proposed antenna offers an improved gain of 8 dB instead of 5 dB achieved from the basic model. The proposed Vivaldi antenna can easily be integrated with a stripline feed network for achieving wide bandwidth and narrow beam-width for radar and communication applications.

Original languageEnglish
Title of host publication2021 International Congress of Advanced Technology and Engineering (ICOTEN)
PublisherIEEE
ISBN (Electronic)9781665412247
ISBN (Print)978-1-6654-2966-5
DOIs
Publication statusPublished - 27 Jul 2021
Event2021 International Congress of Advanced Technology and Engineering (ICOTEN) - Taiz, Yemen
Duration: 4 Jul 20215 Jul 2021

Publication series

Name2021 International Congress of Advanced Technology and Engineering, ICOTEN 2021

Conference

Conference2021 International Congress of Advanced Technology and Engineering (ICOTEN)
Country/TerritoryYemen
CityTaiz
Period4/07/215/07/21

Keywords

  • Active phased array radar
  • HFSS
  • Vivaldi antenna
  • antenna arrays
  • defected ground structure

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Computer Science Applications
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality
  • Waste Management and Disposal

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