Millimeter-Wave Broadband Circularly Polarized Magneto-Electric Dipole Antenna with Interlayer Parasitic Patches and Bent Feeding Network

Ke Gong; Meng Xue Deng; Hang Qian; Chun Feng Fan; Qing Liu; Yan Zhang

doi:10.1109/LAWP.2026.3722869

Millimeter-Wave Broadband Circularly Polarized Magneto-Electric Dipole Antenna with Interlayer Parasitic Patches and Bent Feeding Network

Ke Gong^*
, Meng Xue Deng
, Hang Qian
, Chun Feng Fan
, Qing Liu
, Yan Zhang

^*Corresponding author for this work

Xinyang Normal University
Information Engineering University
Southeast University, Nanjing

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

Abstract

A broadband circularly polarized (CP) magneto-electric (ME) dipole antenna array is proposed for millimeter-wave applications. Circular polarization is generated via electromagnetic coupling between E-shaped patches. The axial-ratio (AR) bandwidth is significantly broadened by introducing L-shaped bent parasitic patches beneath the upper substrate. A 2×2 array with a compact bent corporate feeding network is further developed, reducing transmission loss while achieving impedance matching and frequency tuning through weak coupling. Measurement results show that the 2×2 array exhibits an impedance bandwidth of 67.48% and an AR bandwidth of 47.39%, with a peak gain of 13.38 dBic. The proposed CP antenna array features advantages such as a wide impedance bandwidth, a wide AR bandwidth, a compact design, and a convenient feeding network.

Original language	English
Journal	IEEE Antennas and Wireless Propagation Letters
DOIs	https://doi.org/10.1109/LAWP.2026.3722869
State	Accepted/In press - 2026
Externally published	Yes

Keywords

Broadband
circularly polarized (CP)
magneto-electric dipole (MED)
millimeter-wave
parasitic patches

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10.1109/LAWP.2026.3722869

Cite this

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title = "Millimeter-Wave Broadband Circularly Polarized Magneto-Electric Dipole Antenna with Interlayer Parasitic Patches and Bent Feeding Network",

abstract = "A broadband circularly polarized (CP) magneto-electric (ME) dipole antenna array is proposed for millimeter-wave applications. Circular polarization is generated via electromagnetic coupling between E-shaped patches. The axial-ratio (AR) bandwidth is significantly broadened by introducing L-shaped bent parasitic patches beneath the upper substrate. A 2{\texttimes}2 array with a compact bent corporate feeding network is further developed, reducing transmission loss while achieving impedance matching and frequency tuning through weak coupling. Measurement results show that the 2{\texttimes}2 array exhibits an impedance bandwidth of 67.48\% and an AR bandwidth of 47.39\%, with a peak gain of 13.38 dBic. The proposed CP antenna array features advantages such as a wide impedance bandwidth, a wide AR bandwidth, a compact design, and a convenient feeding network.",

keywords = "Broadband, circularly polarized (CP), magneto-electric dipole (MED), millimeter-wave, parasitic patches",

author = "Ke Gong and Deng, \{Meng Xue\} and Hang Qian and Fan, \{Chun Feng\} and Qing Liu and Yan Zhang",

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

year = "2026",

doi = "10.1109/LAWP.2026.3722869",

language = "英语",

journal = "IEEE Antennas and Wireless Propagation Letters",

issn = "1536-1225",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

TY - JOUR

T1 - Millimeter-Wave Broadband Circularly Polarized Magneto-Electric Dipole Antenna with Interlayer Parasitic Patches and Bent Feeding Network

AU - Gong, Ke

AU - Deng, Meng Xue

AU - Qian, Hang

AU - Fan, Chun Feng

AU - Liu, Qing

AU - Zhang, Yan

PY - 2026

Y1 - 2026

N2 - A broadband circularly polarized (CP) magneto-electric (ME) dipole antenna array is proposed for millimeter-wave applications. Circular polarization is generated via electromagnetic coupling between E-shaped patches. The axial-ratio (AR) bandwidth is significantly broadened by introducing L-shaped bent parasitic patches beneath the upper substrate. A 2×2 array with a compact bent corporate feeding network is further developed, reducing transmission loss while achieving impedance matching and frequency tuning through weak coupling. Measurement results show that the 2×2 array exhibits an impedance bandwidth of 67.48% and an AR bandwidth of 47.39%, with a peak gain of 13.38 dBic. The proposed CP antenna array features advantages such as a wide impedance bandwidth, a wide AR bandwidth, a compact design, and a convenient feeding network.

AB - A broadband circularly polarized (CP) magneto-electric (ME) dipole antenna array is proposed for millimeter-wave applications. Circular polarization is generated via electromagnetic coupling between E-shaped patches. The axial-ratio (AR) bandwidth is significantly broadened by introducing L-shaped bent parasitic patches beneath the upper substrate. A 2×2 array with a compact bent corporate feeding network is further developed, reducing transmission loss while achieving impedance matching and frequency tuning through weak coupling. Measurement results show that the 2×2 array exhibits an impedance bandwidth of 67.48% and an AR bandwidth of 47.39%, with a peak gain of 13.38 dBic. The proposed CP antenna array features advantages such as a wide impedance bandwidth, a wide AR bandwidth, a compact design, and a convenient feeding network.

KW - Broadband

KW - circularly polarized (CP)

KW - magneto-electric dipole (MED)

KW - millimeter-wave

KW - parasitic patches

UR - https://www.scopus.com/pages/publications/105048432631

U2 - 10.1109/LAWP.2026.3722869

DO - 10.1109/LAWP.2026.3722869

M3 - 文章

AN - SCOPUS:105048432631

SN - 1536-1225

JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

ER -

Millimeter-Wave Broadband Circularly Polarized Magneto-Electric Dipole Antenna with Interlayer Parasitic Patches and Bent Feeding Network

Abstract

Keywords

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