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3D-printed dual-polarized magneto-electric dipole antenna with > 50-dB wideband isolation for full-duplex and ICAS applications

Published online by Cambridge University Press:  09 March 2026

Mehmet Ahad Yurtoglu Open the ORCID record for Mehmet Ahad Yurtoglu [Opens in a new window] ,
Ramez Askar Open the ORCID record for Ramez Askar [Opens in a new window] ,
Laura Alice Leather  and
Michael Peter Open the ORCID record for Michael Peter [Opens in a new window]
Mehmet Ahad Yurtoglu*
Affiliation:
Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute, HHI, Berlin, Germany
Ramez Askar
Affiliation:
Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute, HHI, Berlin, Germany
Laura Alice Leather
Affiliation:
Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute, HHI, Berlin, Germany
Michael Peter
Affiliation:
Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute, HHI, Berlin, Germany
*
Corresponding author: Mehmet Ahad Yurtoglu; Email: mehmet.ahad.yurtoglu@hhi.fraunhofer.de
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Abstract

This study presents the development of a 3D-printed, wideband, dual-polarized magneto-electric dipole antenna. The proposed antenna demonstrates exceptional cross-polarization isolation (XPI) between its two mutually orthogonal RF ports, achieved through innovative feeding probes, specifically an inverted $\Gamma$-shape and a conventional $\Gamma$-shape probe. The analysis reveals that misalignment between probes can impair XPI; this phenomenon is systematically examined through electromagnetic full-wave simulations. A practical remedy is provided using four plastic rods strategically positioned through the probes and posts. Measurements indicate that XPI exceeds 50 dB across the common operating frequency range of 3.05–4.13 GHz (30%). The maximum realized gain is approximately 7.9 dBi, with a nearly flat response and stable radiation patterns across both ports throughout the bandwidth. The proposed antenna offers a cost-effective, 3D-printed design, wideband radiation performance, and exceptional port-to-port isolation, demonstrating significant potential for full-duplex wireless communication and ICAS applications.

Keywords

additive manufacturingantenna designantenna measurementcross-polarization isolationdual-polarized antennafull duplexintegrated communication and sensinginverse gamma feedmagnetoelectric dipolewideband antenna

Information

Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , First View , pp. 1 - 10
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Copyright
© The Author(s), 2026. Published by Cambridge University Press in association with The European Microwave Association.

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