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Research Article |

Compact Dual-Band E-Shape Patch Antenna with Defected Ground Structure for 5G Millimeter-Wave Applications

Author(s): D. Gh. Hammood1, M. S. AL-Abadi2*, and O. Sh. Dautov3

Published In : International Journal of Electrical and Electronics Research (IJEER)        Volume 13, Issue 4

Publisher : FOREX Publication

Published : 10 December 2025

e-ISSN : 2347-470X

Page(s) : 749-755

DOI: https://doi.org/10.37391/IJEER.130415

Abstract

The continuous demand of sending/receiving various multimedia leads to develop 5G communications services. The 5G services requires wide bandwidth, higher speed with less time delay and all that need to use higher frequency waves that are millimeter waves. To achieve these requirements investigated a dual-band E-shape patch antenna designed on the defected ground structure (DGS) layer for 28.4/36 GHz frequency bands that are available to 5G applications. The resulted response of this antenna gives reflection factor (return loss S11) in depth of -20/-25.3dB for lower and upper frequency bands respectively. Moreover, not suffered spurious harmonics in out-of-band rejection. There is a high isolation between the two bands (about 0.2 dB). The less mismatch coincides with acceptable peak gain (3.7/1.6 dB), valuable VSWR (1.2/1.3) and high radiation efficiency (90%/84%). Furthermore, the new equivalent antenna circuit with a novel RLC configuration produces a highly consistent reflective response with the EM antenna model. In addition, the overall structure of the proposed antenna achieved in compact size less than 16 mm2 to serve most of the devices in 5G systems.

Keywords: Millimeter waves, 5G, E-shape patch, Defected Ground Structure (DGS).




D. Gh. Hammood, University of Diyala, Iraq; Email: dhuha_gh@yahoo.com

M. S. AL-Abadi*, University of Diyaal, Iraq; Email: msmhhjk@yahoo.com

O. Sh. Dautov, Kazan National Research Technical University, Russia; Email: dautov_kstu@mail.ru

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D. Gh. Hammood, M. S. AL-Abadi, and O. Sh. Dautov (2025), Compact Dual-Band E-Shape Patch Antenna with Defected Ground Structure for 5G Millimeter-Wave Applications. IJEER 13(4), 749-755. DOI: 10.37391/IJEER.130415.