Skip to main content

Millimetre-Wave Dual-Polarized Differentially-Fed 2D Multibeam Patch Antenna Array

Yang, Qingling, Gao, Steven, Wen, Lehu, Ban, Yong-Ling, Ren, Jian Wu, Yang, Xuexia, Liu, Ying (2020) Millimetre-Wave Dual-Polarized Differentially-Fed 2D Multibeam Patch Antenna Array. IEEE Transactions on Antennas and Propagation, . ISSN 0018-926X. (doi:10.1109/TAP.2020.2992896) (KAR id:81012)

PDF Publisher pdf
Language: English


Download (5MB) Preview
[thumbnail of 09106783.pdf]
Preview
This file may not be suitable for users of assistive technology.
Request an accessible format
PDF Author's Accepted Manuscript
Language: English
Download (11MB) Preview
[thumbnail of final.pdf]
Preview
This file may not be suitable for users of assistive technology.
Request an accessible format
Official URL
https://dx.doi.org/10.1109/TAP.2020.2992896

Abstract

In this paper, a novel millimetre-wave dual-polarized 2D multibeam antenna array incorporating differentially-fed antenna elements is proposed to achieve high cross-polarization discrimination (XPD) when the beams scan to the maximal pointing angles. The antenna element is composed of a SIW cavity with four shorted patches placed inside, and it is differentially excited for dual-polarization by a pair of feeding strips and transverse slots beneath the patches. Differential excitation is realized by a power divider designed on two laminate layers. Two Butler Matrices placed perpendicularly with each other in different laminates are employed to generate four tilted beams with dual-polarization. A 2 × 2 dual-polarized 2D multibeam antenna array working at 28 GHz is designed, fabricated, and measured. The operation bandwidth of the antenna is 26.8 GHz – 29.2 GHz. The improvement in the XPD is experimentally demonstrated by far-field measurement. When the beams scan to 30◦ off the boresight, the measured XPDs are 28 dB at the centre frequency and higher than 25 dB over the operation bandwidth, which confirms that the cross-polarized radiation in the 2D multibeam antenna array is suppressed by using the differential-feeding technique. The measured gain is in the range from 7.6 dBi to 10.5 dBi.

Item Type: Article
DOI/Identification number: 10.1109/TAP.2020.2992896
Uncontrolled keywords: Butler Matrix, cross-polarization, differential, feeding, dual-polarization, millimetre-wave, multibeam antenna, patch antenna
Subjects: T Technology
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Steven Gao
Date Deposited: 27 Apr 2020 14:02 UTC
Last Modified: 16 Feb 2021 14:12 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/81012 (The current URI for this page, for reference purposes)
Gao, Steven: https://orcid.org/0000-0002-7402-9223
  • Depositors only (login required):

Downloads

Downloads per month over past year