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A Wideband Via-Free Magneto-Electric Dipole Antenna Array with High Aperture Efficiency

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

A novel design is proposed to achieve a high-aperture-efficiency wideband magneto-electric (ME) dipole antenna array. By employing an air gap and parasitic patches in a conventional via-free ME dipole, surface waves are effectively suppressed while maintaining a broad bandwidth. The proposed antenna element achieves a 48% impedance bandwidth with SWR < 2, exhibiting a stable unidirectional radiation pattern. Finally, a 256-element antenna array, fed by an equal power divider constructed by stripline, achieves a peak gain of 30.5 dBi and over 85% aperture efficiency (AE) across the 22.5–32.5 GHz operating bandwidth. ©2025 IEEE.
Original languageEnglish
Title of host publication2025 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)
PublisherIEEE
Pages549-550
Number of pages2
ISBN (Electronic)979-8-3315-2240-7
ISBN (Print)979-8-3315-2241-4
DOIs
Publication statusPublished - 2025
Event2025 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM 2025) - City University of Hong Kong, Hong Kong, China
Duration: 4 Aug 2025 → 6 Aug 2025
https://www.ee.cityu.edu.hk/skltmw/iwem2025/

Publication series

NameIEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM
ISSN (Print)2574-1411
ISSN (Electronic)2835-7655

Workshop

Workshop2025 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM 2025)
Abbreviated titleiWEM2025
PlaceHong Kong, China
Period4/08/25 → 6/08/25
Internet address

Funding

This work was supported by the Research Grants Council of Hong Kong SAR, China, under Grant 9390036 (Funding Body Ref. No.: AoE/E-101/23-N).

Research Keywords

  • air gap
  • aperture efficiency
  • ME dipole
  • parasitic patch
  • surface wave
  • wide bandwidth

RGC Funding Information

  • RGC-funded

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

    LU, J. (Principal Investigator / Project Coordinator)

    1/01/24 → …

    Project: Research

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

    LUK, K. M. (Principal Investigator / Project Coordinator), CHAN, C. H. (Co-Principal Investigator), GAO, S. (Co-Principal Investigator), LEUNG, K. W. (Co-Principal Investigator), LIN, W. (Co-Principal Investigator), LU, J. (Co-Principal Investigator), LUCYSZYN, S. (Co-Principal Investigator), Pang, S. (Co-Principal Investigator), TONG, K. F. K. (Co-Principal Investigator), WONG, H. (Co-Principal Investigator), WONG, M. H. A. (Co-Principal Investigator), ZHENG, S. (Co-Principal Investigator), LAU, V. K. N. (Co-Investigator), WANG, H. (Co-Investigator) & WONG, K.-K. (Co-Investigator)

    1/01/24 → …

    Project: Research

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