A Wideband Full-Wave Magneto-Electric Dipole Antenna for High-Gain Millimeter-Wave Applications

Ji Liu; Yuanfa Sun; Hang Wong

doi:10.1109/TAP.2026.3681392

A Wideband Full-Wave Magneto-Electric Dipole Antenna for High-Gain Millimeter-Wave Applications

Ji Liu
, Yuanfa Sun
, Hang Wong^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

In this communication, a wideband full-wave magneto-electric (ME) dipole antenna is proposed as a high-gain feed source for millimete-rwave (mmWave) metalens applications. Distinct from conventional halfwave ME dipoles, the proposed design supports full-wave resonant modes that substantially enlarge the effective radiating aperture. This mechanism overcomes the inherent gain limitations of half-wave ME dipoles while preserving their characteristic wideband operation and stable radiation patterns. The feed source is implemented on a two-layer PCB and experimentally validated over the Ka-band. When integrated with a wideband transmissive metalens, the proposed feed enables broadband impedance matching, high realized gain, and high aperture efficiency in a compact form factor. Experimental results demonstrate that the full-wave ME dipole offers an effective, low-profile alternative to bulky horn antennas for high-performance mmWave systems. © 2026 IEEE.

Original language	English
Journal	IEEE Transactions on Antennas and Propagation
DOIs	https://doi.org/10.1109/TAP.2026.3681392
Publication status	Online published - 13 Apr 2026

Funding

This work was supported in part by the Research Grants Council of Hong Kong, SAR, China, under Project AoE/E-101/23-N and Project CityU 11215522; and in part by Shenzhen Hong Kong Macau Science and Technology Project (Category C) under Project SGDX20230821100459006.

Research Keywords

Full-wave ME dipole
high-gain feed source
metalens antennas
millimeter-wave antennas
wideband antennas

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10.1109/TAP.2026.3681392

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title = "A Wideband Full-Wave Magneto-Electric Dipole Antenna for High-Gain Millimeter-Wave Applications",

abstract = "In this communication, a wideband full-wave magneto-electric (ME) dipole antenna is proposed as a high-gain feed source for millimete-rwave (mmWave) metalens applications. Distinct from conventional halfwave ME dipoles, the proposed design supports full-wave resonant modes that substantially enlarge the effective radiating aperture. This mechanism overcomes the inherent gain limitations of half-wave ME dipoles while preserving their characteristic wideband operation and stable radiation patterns. The feed source is implemented on a two-layer PCB and experimentally validated over the Ka-band. When integrated with a wideband transmissive metalens, the proposed feed enables broadband impedance matching, high realized gain, and high aperture efficiency in a compact form factor. Experimental results demonstrate that the full-wave ME dipole offers an effective, low-profile alternative to bulky horn antennas for high-performance mmWave systems. {\textcopyright} 2026 IEEE.",

keywords = "Full-wave ME dipole, high-gain feed source, metalens antennas, millimeter-wave antennas, wideband antennas",

author = "Ji Liu and Yuanfa Sun and Hang Wong",

year = "2026",

month = apr,

day = "13",

doi = "10.1109/TAP.2026.3681392",

language = "English",

journal = "IEEE Transactions on Antennas and Propagation",

issn = "0018-926X",

publisher = "IEEE",

}

TY - JOUR

T1 - A Wideband Full-Wave Magneto-Electric Dipole Antenna for High-Gain Millimeter-Wave Applications

AU - Liu, Ji

AU - Sun, Yuanfa

AU - Wong, Hang

PY - 2026/4/13

Y1 - 2026/4/13

N2 - In this communication, a wideband full-wave magneto-electric (ME) dipole antenna is proposed as a high-gain feed source for millimete-rwave (mmWave) metalens applications. Distinct from conventional halfwave ME dipoles, the proposed design supports full-wave resonant modes that substantially enlarge the effective radiating aperture. This mechanism overcomes the inherent gain limitations of half-wave ME dipoles while preserving their characteristic wideband operation and stable radiation patterns. The feed source is implemented on a two-layer PCB and experimentally validated over the Ka-band. When integrated with a wideband transmissive metalens, the proposed feed enables broadband impedance matching, high realized gain, and high aperture efficiency in a compact form factor. Experimental results demonstrate that the full-wave ME dipole offers an effective, low-profile alternative to bulky horn antennas for high-performance mmWave systems. © 2026 IEEE.

AB - In this communication, a wideband full-wave magneto-electric (ME) dipole antenna is proposed as a high-gain feed source for millimete-rwave (mmWave) metalens applications. Distinct from conventional halfwave ME dipoles, the proposed design supports full-wave resonant modes that substantially enlarge the effective radiating aperture. This mechanism overcomes the inherent gain limitations of half-wave ME dipoles while preserving their characteristic wideband operation and stable radiation patterns. The feed source is implemented on a two-layer PCB and experimentally validated over the Ka-band. When integrated with a wideband transmissive metalens, the proposed feed enables broadband impedance matching, high realized gain, and high aperture efficiency in a compact form factor. Experimental results demonstrate that the full-wave ME dipole offers an effective, low-profile alternative to bulky horn antennas for high-performance mmWave systems. © 2026 IEEE.

KW - Full-wave ME dipole

KW - high-gain feed source

KW - metalens antennas

KW - millimeter-wave antennas

KW - wideband antennas

UR - http://www.scopus.com/inward/record.url?scp=105036556072&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-105036556072&origin=recordpage

U2 - 10.1109/TAP.2026.3681392

DO - 10.1109/TAP.2026.3681392

M3 - RGC 21 - Publication in refereed journal

SN - 0018-926X

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

ER -

A Wideband Full-Wave Magneto-Electric Dipole Antenna for High-Gain Millimeter-Wave Applications

Abstract

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Research Keywords

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AoE(UGC)-Sub-pj: Advanced Antenna Technology for a Smart World

AoE(UGC): Advanced Antenna Technology for a Smart World

GRF: Investigation of Wideband Antenna-In-Package Designs for 6G Communications

Cite this

A Wideband Full-Wave Magneto-Electric Dipole Antenna for High-Gain Millimeter-Wave Applications

Abstract

Funding

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

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Projects

AoE(UGC)-Sub-pj: Advanced Antenna Technology for a Smart World

AoE(UGC): Advanced Antenna Technology for a Smart World

GRF: Investigation of Wideband Antenna-In-Package Designs for 6G Communications

Cite this