Compact Dual Microwave/Millimeter-Wave Planar Shared-Aperture Antenna for Vehicle-to-Vehicle/5G Communications

This paper presents a compact dual-port dual-frequency planar shared-aperture antenna with large frequency ratio. It consists of a microwave magneto-electric (ME) dipole antenna and a millimeter-wave parallel-plate resonator antenna (PPRA). It has two vertical conducting walls that form an upper-ban...

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Bibliographic Details
Published in:IEEE transactions on vehicular technology 2021-05, Vol.70 (5), p.5071-5076
Main Authors: Sun, Yu-Xiang, Leung, Kwok Wa, Lu, Kai
Format: Article
Language:English
Subjects:
Antenna measurements
Apertures
Dipole antennas
Dual-frequency antenna
ME dipole antenna
Microwave antennas
Microwave communication
Millimeter wave communication
Millimeter wave technology
Millimeter waves
parallel-plate resonator
Resonators
shared-aperture antenna
Substrates
V2V
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Summary:This paper presents a compact dual-port dual-frequency planar shared-aperture antenna with large frequency ratio. It consists of a microwave magneto-electric (ME) dipole antenna and a millimeter-wave parallel-plate resonator antenna (PPRA). It has two vertical conducting walls that form an upper-band parallel-plate resonator and meanwhile provide a magnetic source to the lower-band ME dipole. The design is a shared-aperture structure and is therefore very compact. For demonstration, a dual-frequency antenna simultaneously covering the 5.9-GHz vehicle-to-vehicle (V2V) band (5.855-5.925 GHz) and the 28-GHz 5G band (27.5-28.35 GHz) was designed, fabricated, and measured. Good agreement between the measured and simulated results was found. The lower and upper bands have the measured 10-dB impedance bandwidths of 41.6% (5.30-8.08 GHz) and 6.66% (27.15-29.02 GHz), and measured peak antenna gains of 5.80 dBi and 8.46 dBi, respectively. The antenna can be used on vehicular platforms for providing V2V communications and 5G millimeter-wave connections simultaneously.
ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2021.3070353