A Defected Ground Structure Based Compact Circular Patch Antenna Design for mm Wave Application

  • Saurabh Raj Motilal Nehru National Institute of Technology, Allahabad, Prayagraj, India https://orcid.org/0000-0002-5196-1544
  • Piyush Kumar Mishra Motilal Nehru National Institute of Technology, Allahabad, Prayagraj, India https://orcid.org/0000-0002-6206-0450
  • Shivesh Tripathi Indian Institute of Technology, Roorkee, Uttarakhand, India https://orcid.org/0000-0001-5319-9576
  • Vijay Shanker Tripathi Motilal Nehru National Institute of Technology, Allahabad, Prayagraj, India
DOI: https://doi.org/10.14429/dsj.72.18164
Keywords: Circular patch antenna, Circular polarization (CP), Defected ground structure (DGS), Millimeter-wave (mm-Wave)

Abstract

This paper presents a novel defected ground structure-based slotted circular patch antenna for mm-Wave application. A circular patch antenna with a compact size of 10 mm×8 mm×0.75 mm is fabricated in the lab. The designed antenna has a 2 GHz impedance bandwidth that covers the frequency range of 42GHz to 44GHz. It achieves a directional radiation pattern for millimeter-wave applications and has a maximum realized gain of 6 dBi at the operating frequency of 42.65 GHz. Defected ground structure (DGS) is loaded on the bottom of the dielectric substrate, which improves the gain and reduces the surface wave propagation. The proposed antenna has achieved circular polarization which makes it suitable for the mm-Wave application.

Published
2022-08-26
How to Cite
Raj, S., Mishra, P. K., Tripathi, S., & Tripathi, V. (2022). A Defected Ground Structure Based Compact Circular Patch Antenna Design for mm Wave Application. Defence Science Journal, 72(4), 592-599. https://doi.org/10.14429/dsj.72.18164
Issue
Vol 72 No 4 (2022)
Section
Electronics & Communication Systems
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