Millimeter-Wave End-Fire Magneto-Electric Dipole Antenna and Arrays With Asymmetrical Substrate Integrated Coaxial Line Feed
A wideband vertically-polarized end-fire magneto-electric (ME) dipole antenna fed by an asymmetrical substrate integrated coaxial line (ASICL) is proposed for millimeter-wave (mm-wave) applications. The proposed ME dipole antenna has an impedance bandwidth of 60% and produces an end-fire radiation w...
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2021-01-01
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doaj-eea9c69b3b434c22a8c29457dadba2f02021-03-29T18:55:42ZengIEEEIEEE Open Journal of Antennas and Propagation2637-64312021-01-012627110.1109/OJAP.2020.30444379293000Millimeter-Wave End-Fire Magneto-Electric Dipole Antenna and Arrays With Asymmetrical Substrate Integrated Coaxial Line FeedAo Li0https://orcid.org/0000-0003-3693-019XKwai-Man Luk1https://orcid.org/0000-0002-5910-9604Department of Electrical Engineering, State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Hong Kong, SAR, ChinaDepartment of Electrical Engineering, State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Hong Kong, SAR, ChinaA wideband vertically-polarized end-fire magneto-electric (ME) dipole antenna fed by an asymmetrical substrate integrated coaxial line (ASICL) is proposed for millimeter-wave (mm-wave) applications. The proposed ME dipole antenna has an impedance bandwidth of 60% and produces an end-fire radiation with a stable gain between 5.8 and 6.9 dBi in simulation. To verify the design concept and its application in arrays, a 1 × 8 linear array with a fixed beam and a 1 × 4 linear array with multiple beams are designed, fabricated and measured. The fabricated fixed-beam array prototype exhibits an impedance bandwidth of 62%, a peak gain of 15.9 dBi and a radiation efficiency of 79%. The multi-beam array is fed by a 4 × 4 ASICL Butler matrix. Experimentally, excellent beam scanning radiation patterns with reasonably low side lobes and low cross polarizations are demonstrated at 24, 30 and 36 GHz. And an overlapped operating bandwidth of 28.6% is achieved by the fabricated prototype.https://ieeexplore.ieee.org/document/9293000/Asymmetrical substrate integrated coaxial line (ASICL)end-fire radiationmagneto-electric (ME) dipolemillimeter-wave (mm-wave) antennamulti-beam array |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ao Li Kwai-Man Luk |
spellingShingle |
Ao Li Kwai-Man Luk Millimeter-Wave End-Fire Magneto-Electric Dipole Antenna and Arrays With Asymmetrical Substrate Integrated Coaxial Line Feed IEEE Open Journal of Antennas and Propagation Asymmetrical substrate integrated coaxial line (ASICL) end-fire radiation magneto-electric (ME) dipole millimeter-wave (mm-wave) antenna multi-beam array |
author_facet |
Ao Li Kwai-Man Luk |
author_sort |
Ao Li |
title |
Millimeter-Wave End-Fire Magneto-Electric Dipole Antenna and Arrays With Asymmetrical Substrate Integrated Coaxial Line Feed |
title_short |
Millimeter-Wave End-Fire Magneto-Electric Dipole Antenna and Arrays With Asymmetrical Substrate Integrated Coaxial Line Feed |
title_full |
Millimeter-Wave End-Fire Magneto-Electric Dipole Antenna and Arrays With Asymmetrical Substrate Integrated Coaxial Line Feed |
title_fullStr |
Millimeter-Wave End-Fire Magneto-Electric Dipole Antenna and Arrays With Asymmetrical Substrate Integrated Coaxial Line Feed |
title_full_unstemmed |
Millimeter-Wave End-Fire Magneto-Electric Dipole Antenna and Arrays With Asymmetrical Substrate Integrated Coaxial Line Feed |
title_sort |
millimeter-wave end-fire magneto-electric dipole antenna and arrays with asymmetrical substrate integrated coaxial line feed |
publisher |
IEEE |
series |
IEEE Open Journal of Antennas and Propagation |
issn |
2637-6431 |
publishDate |
2021-01-01 |
description |
A wideband vertically-polarized end-fire magneto-electric (ME) dipole antenna fed by an asymmetrical substrate integrated coaxial line (ASICL) is proposed for millimeter-wave (mm-wave) applications. The proposed ME dipole antenna has an impedance bandwidth of 60% and produces an end-fire radiation with a stable gain between 5.8 and 6.9 dBi in simulation. To verify the design concept and its application in arrays, a 1 × 8 linear array with a fixed beam and a 1 × 4 linear array with multiple beams are designed, fabricated and measured. The fabricated fixed-beam array prototype exhibits an impedance bandwidth of 62%, a peak gain of 15.9 dBi and a radiation efficiency of 79%. The multi-beam array is fed by a 4 × 4 ASICL Butler matrix. Experimentally, excellent beam scanning radiation patterns with reasonably low side lobes and low cross polarizations are demonstrated at 24, 30 and 36 GHz. And an overlapped operating bandwidth of 28.6% is achieved by the fabricated prototype. |
topic |
Asymmetrical substrate integrated coaxial line (ASICL) end-fire radiation magneto-electric (ME) dipole millimeter-wave (mm-wave) antenna multi-beam array |
url |
https://ieeexplore.ieee.org/document/9293000/ |
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AT aoli millimeterwaveendfiremagnetoelectricdipoleantennaandarrayswithasymmetricalsubstrateintegratedcoaxiallinefeed AT kwaimanluk millimeterwaveendfiremagnetoelectricdipoleantennaandarrayswithasymmetricalsubstrateintegratedcoaxiallinefeed |
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