DGS Based Coaxially Fed Microstrip Slotted Rectangular Patch Antenna with Improved Gain and Bandwidth

Authors

  • Deepanshu Kaushal Department of Electronics Engineering, Pondicherry University, Pondicherry, India
  • T. Shanmuganantham Department of Electronics Engineering, Pondicherry University, Pondicherry, India

Keywords:

Defected ground structures, coaxially fed, slotted patch geometry, multiband operation

Abstract

Most often, the conventional microstrip rectangular patch antennas have a limited gain and bandwidth performance. In this paper, an enhancement in the gain and bandwidth parameters are achieved by slotted radiating patch and using a defected ground structure respectively. The proposed antenna design with design frequency of 3.5 GHz has been evolved isometrically in different design stages (design iterations). The work initially considers an existing single band Microstrip rectangular patch antenna design of low gain and another work of single band antenna with a slotted patch geometry offering an improved gain but limited in its bandwidth. The change in the widths of the ground, substrate and the patch along with the addition of addition of slots into this design results into a completely different geometry featuring multiband operation with an improved gain and the use of defected ground structure in the final stage counters the limited bandwidth operability. All the involved iteration designs have been simulated over HFSS-15 for the performance parameters of the reflection coefficient, bandwidth, radiation pattern and gain. The designs of the last two stages have been fabricated and validated. The measured results have been found to be in close approximation to the simulated ones.

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Author Biographies

Deepanshu Kaushal, Department of Electronics Engineering, Pondicherry University, Pondicherry, India

Deepanshu Kaushal received his B.Tech. degree in Electronics and Communication from Punjab Technical University in 2014. He is currently a second year M. Tech (E.C.E.) student of Pondicherry University and is doing his project on ‘Microstrip Slotted Patch Antennas for Multiband Operation’ under the guidance of Dr. T. Shanmuganantham. His area of interest includes antennas, fractals, metamaterials and terahertz antenna technology. He has 24 conference papers and 11 journals till date.

T. Shanmuganantham, Department of Electronics Engineering, Pondicherry University, Pondicherry, India

T. Shanmuganantham received B.E. degree in Electronics and Communication Engineering from University of Madras, M.E. degree in Communication Systems from Madurai Kamaraj University and Ph.D. (Gold Medal) in the area of Antennas from National Institute of Technology, Tiruchirappalli, India under the guidance of Prof. S. Raghavan, Professor/ECE, NITT. He has 21 years of teaching experience in various reputed Engineering Colleges. He is currently working as Assistant Professor in the Department of Electronics Engineering, School of Engineering & Technology, Pondicherry Central University, Pondicherry. His research interest includes Antennas, Microwave/Millimeter-Wave Circuits and Devices, MEMS/NEMS.
He has published 450 research papers in various National and International level Journals and Conferences. His biography was included in Marquis who is who in the world, USA in the year 2010. He received Fellow in ATMS and a Senior Member in IEEE, Life Member in ISSS, IETE, IE (India), CSI (India), Society of EMC, OSI, ILA, ISI and ISTE.

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Published

2018-04-30

How to Cite

Deepanshu Kaushal, & T. Shanmuganantham. (2018). DGS Based Coaxially Fed Microstrip Slotted Rectangular Patch Antenna with Improved Gain and Bandwidth . International Journal of Advances in Microwave Technology, 3(2), 160-164. Retrieved from https://ijamt.com/index.php/ijamt/article/view/70