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Research Article |

Design of Enhanced Wide Band Microstrip Patch Antenna Based on Defected Ground Structures (DGS) for Sub-6 GHz Applications

Author(s): Mohamed Lemine El Issawi*, Dominic Konditi and AD Usman

Published In : International Journal of Electrical and Electronics Research (IJEER)        Volume 12, Issue 1

Publisher : FOREX Publication

Published : 28 march 2024

e-ISSN : 2347-470X

Page(s) : 315-321

DOI: https://doi.org/10.37391/IJEER.120143

Abstract

In this paper a comprehensive comparative study of three distinct microstrip patch antenna (MPA) designs, each optimized for the sub-6 GHz applications, is presented. The initial design phase utilized a Rogers RT 5880 substrate with a permittivity (εr1) of 2.2 and a thickness(H1) of 1.42 mm. The proposed model achieved a resonance band ranging from 4.8 to 7 GHz, with a bandwidth of 2.2 GHz and a return loss (S11) of -20 dB. Subsequent enhancements involved integrating a Barium Strontium Titanate (BST) thin film (εr2 = 250, thickness(H2) = 0.005 mm), effectively shifting the operational band to 3.5-5.3 GHz. The final design iteration, which incorporated both BST and a Defective Ground Structure (DGS), represented a substantial advancement, achieving wideband operation from 1.8 to 6 GHz, expanding the bandwidth to 4.2 GHz, and improving the S11 to -25 dB. This integration also resulted in a compact antenna size of 30 x 26.5 x 1.42 mm³. These findings underscore the synergistic impact of BST and DGS in enhancing MPA design, marking a significant progression in antenna technology, vital for a range of wireless communication.

Keywords: Microstrip Patch Antenna (MPA), Barium Strontium Titanate (BST), Defected Ground Structures (DGS), Wideband Antenna Design, Sub-6 GHz Applications.




Mohamed Lemine El Issawi*, Department of Electrical Engineering, Pan African University Institute for Basic Sciences and Technology and Innovation hosted at Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya; Email: lemine.mohamed@students.jkuat.ac.ke

Dominic Konditi, School of Electrical and Electronic Engineering, Faculty of Engineering and Built Environment, Technical University of Kenya (TU-K), Nairobi, Kenya; Email: dominic.konditi@tukenya.ac.ke

AD Usman, Department of Telecommunication Engineering, Faculty of Engineering, Ahmadu Bello University, Zaria, Nigeria; Email: adusman@abu.edu.ng

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Mohamed Lemine El Issawi, Dominic Konditi and AD Usman (2024), Design of Enhanced Wide Band Microstrip Patch Antenna Based on Defected Ground Structures (DGS) for Sub-6 GHz Applications. IJEER 12(1), 315-321. DOI: 10.37391/IJEER.120143.