A Magneto-Electric Dipole Antenna Array With Modified Aperture for Gain Enhancement

Shozab Shafiq; Yijing He; Qasim Ali; Wenhao Tan; Syed Muzahir Abbas; Houjun Sun

doi:10.1109/LAWP.2026.3673634

A Magneto-Electric Dipole Antenna Array With Modified Aperture for Gain Enhancement

Shozab Shafiq
, Yijing He^*
, Qasim Ali
, Wenhao Tan
, Syed Muzahir Abbas
, Houjun Sun

^*Corresponding author for this work

Beijing Institute of Technology
Macquarie University

Research output: Contribution to journal › Article › peer-review

Abstract

This letter presents a wideband, high-efficiency, all-metallic 8 × 8 magneto-electric dipole (MED) antenna array for fixed-beam Ka-band applications. The design integrates three key features: a novel MED element using mirrored U-shaped structures to achieve a 65.7% element bandwidth; a low-profile, horn-shaped aperture that boosts gain by approximately 1 dB; and a compact H-plane waveguide feeding network with miniaturized T-junctions. A fabricated prototype demonstrates a 36.1% impedance bandwidth, a peak gain of 28.8 dBi, and cross-polarization below -40 dB. The all-metal construction ensures high efficiency, making the array a scalable solution for next-generation Ka-band systems.

Original language	English
Pages (from-to)	2155-2159
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	25
Issue number	5
DOIs	https://doi.org/10.1109/LAWP.2026.3673634
Publication status	Published - 1 May 2026
Externally published	Yes

Keywords

Array
cavity-backed
magneto-electric dipole (MED)

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10.1109/LAWP.2026.3673634

Cite this

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title = "A Magneto-Electric Dipole Antenna Array With Modified Aperture for Gain Enhancement",

abstract = "This letter presents a wideband, high-efficiency, all-metallic 8 {\texttimes} 8 magneto-electric dipole (MED) antenna array for fixed-beam Ka-band applications. The design integrates three key features: a novel MED element using mirrored U-shaped structures to achieve a 65.7\% element bandwidth; a low-profile, horn-shaped aperture that boosts gain by approximately 1 dB; and a compact H-plane waveguide feeding network with miniaturized T-junctions. A fabricated prototype demonstrates a 36.1\% impedance bandwidth, a peak gain of 28.8 dBi, and cross-polarization below -40 dB. The all-metal construction ensures high efficiency, making the array a scalable solution for next-generation Ka-band systems.",

keywords = "Array, cavity-backed, magneto-electric dipole (MED)",

author = "Shozab Shafiq and Yijing He and Qasim Ali and Wenhao Tan and Abbas, \{Syed Muzahir\} and Houjun Sun",

note = "Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

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doi = "10.1109/LAWP.2026.3673634",

language = "English",

volume = "25",

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journal = "IEEE Antennas and Wireless Propagation Letters",

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TY - JOUR

T1 - A Magneto-Electric Dipole Antenna Array With Modified Aperture for Gain Enhancement

AU - Shafiq, Shozab

AU - He, Yijing

AU - Ali, Qasim

AU - Tan, Wenhao

AU - Abbas, Syed Muzahir

AU - Sun, Houjun

PY - 2026/5/1

Y1 - 2026/5/1

N2 - This letter presents a wideband, high-efficiency, all-metallic 8 × 8 magneto-electric dipole (MED) antenna array for fixed-beam Ka-band applications. The design integrates three key features: a novel MED element using mirrored U-shaped structures to achieve a 65.7% element bandwidth; a low-profile, horn-shaped aperture that boosts gain by approximately 1 dB; and a compact H-plane waveguide feeding network with miniaturized T-junctions. A fabricated prototype demonstrates a 36.1% impedance bandwidth, a peak gain of 28.8 dBi, and cross-polarization below -40 dB. The all-metal construction ensures high efficiency, making the array a scalable solution for next-generation Ka-band systems.

AB - This letter presents a wideband, high-efficiency, all-metallic 8 × 8 magneto-electric dipole (MED) antenna array for fixed-beam Ka-band applications. The design integrates three key features: a novel MED element using mirrored U-shaped structures to achieve a 65.7% element bandwidth; a low-profile, horn-shaped aperture that boosts gain by approximately 1 dB; and a compact H-plane waveguide feeding network with miniaturized T-junctions. A fabricated prototype demonstrates a 36.1% impedance bandwidth, a peak gain of 28.8 dBi, and cross-polarization below -40 dB. The all-metal construction ensures high efficiency, making the array a scalable solution for next-generation Ka-band systems.

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KW - cavity-backed

KW - magneto-electric dipole (MED)

UR - https://www.scopus.com/pages/publications/105032881170

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DO - 10.1109/LAWP.2026.3673634

M3 - Article

AN - SCOPUS:105032881170

SN - 1536-1225

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JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

IS - 5

ER -

A Magneto-Electric Dipole Antenna Array With Modified Aperture for Gain Enhancement

Abstract

Keywords

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