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Research Article |

A Compact Directive CSRR based Patch Antenna in 5G Bands

Author(s): Sruthi Dinesh1,C.K. Aanandan2

Published In : International Journal of Electrical and Electronics Research (IJEER)        Volume 14, Issue 2

Publisher : FOREX Publication

Published : 30 June 2026

e-ISSN : 2347-470X

Page(s) : 661-667

DOI: https://doi.org/10.37391/IJEER.140241

Abstract

This paper proposes a compact patch antenna whose directivity is enhanced by modifying the ground plane with a CSRR (complementary split ring resonator). A slot is embedded within the patch so that it resonates at millimeter wave frequencies, the lower resonance at 38 GHz and the upper one at 58 GHz designated for next-gen communication applications. As Rogers 5880 has low dielectric loss at millimeter bands, it was selected as the dielectric substrate. The structure provides a directivity of 7.04 dB and 6.35 dB at resonance, which increase to 8.68 and 10.6 dB, respectively, with the inclusion of the resonator. Insertion of CSRR also creates additional resonances at 42 and 61 GHz with directivity of 9.46 dB and 8.72 dB, respectively, without increasing the structure dimensions, making it ideal for application in compact structures such as next-gen mobile phones and tablets.

Keywords: Directive, slotted, patch, inset feed, , complementary split ring resonator, 5G.




Sruthi Dinesh, Associate Professor, Department of Electronics and Communication Engineering, A.J. Institute of Engineering and Technology, Karnataka, India, Email: sruthidinesh11@gmail.com

C.K. Aanandan, Professor Emeritus, Advanced Centre for Atmospheric Radar Research, Cochin University of Science and Technology, Kerala, India, Email: aanandan@gmail.com

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Sruthi Dinesh and C. K. Aanandan (2026), A Compact Directive CSRR based Patch Antenna in 5G Bands . IJEER 14(2), 661-667. DOI: 10.37391/IJEER.140241.