A Hybrid-Element Approach to Design Wideband ME-Dipole Transmitarray with Improved Aperture Efficiency

Fan Wu; Lei Xiang; Jingxue Wang; Kwai-Man Luk; Wei Hong

doi:10.1109/LAWP.2022.3167284

Author(s)

Fan Wu
Lei Xiang
Jingxue Wang
Kwai-Man Luk
Wei Hong

Related Research Unit(s)

Detail(s)

Original language	English
Pages (from-to)	1338-1342
Journal / Publication	IEEE Antennas and Wireless Propagation Letters
Volume	21
Issue number	7
Online published	13 Apr 2022
Publication status	Published - Jul 2022

Link(s)

DOI	DOI https://doi.org/10.1109/LAWP.2022.3167284 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85128604930&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(0a793025-4740-4940-9c69-fbb76b2b07a4).html

Abstract

In this letter, a wideband efficiency-enhanced transmitarray is proposed using a variety of phasing elements based on the magneto-electric (ME) dipole structure. Several different ME-dipole geometries and excitation mechanisms are investigated to realize the receive-and-transmit type elements that have same multilayer configuration, wide common bandwidth, and stable transmission phase differences. A number of different phase adjustments can be provided within a wide bandwidth by the proposed elements. A 16×16 transmitarray antenna working from 21.5 to 33 GHz (42%, defined according to 3 dB variation in aperture efficiency) is designed, fabricated, and tested, which confirms a peak gain of 26.8 dBi and a peak aperture efficiency of 41%. Comparing to the original 1-bit ME-dipole transmitarray, where only two transmission phases can be used, the presented hybrid-element design demonstrates a pronounced improvement in aperture efficiency with nearly the same bandwidth and element thickness.

Research Area(s)

Antenna feeds, Broadband antennas, Dipole antennas, Discrete lens, Geometry, heterogeneous array, hybrid element, magneto-electric (ME) dipole, Receiving antennas, transmitarray, Transmitting antennas, Wideband

Citation Format(s)

[ RIS ] [ BibTeX ]

A Hybrid-Element Approach to Design Wideband ME-Dipole Transmitarray with Improved Aperture Efficiency. / Wu, Fan; Xiang, Lei; Wang, Jingxue et al.
In: IEEE Antennas and Wireless Propagation Letters, Vol. 21, No. 7, 07.2022, p. 1338-1342.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Wu, F, Xiang, L, Wang, J, Luk, K-M & Hong, W 2022, 'A Hybrid-Element Approach to Design Wideband ME-Dipole Transmitarray with Improved Aperture Efficiency', IEEE Antennas and Wireless Propagation Letters, vol. 21, no. 7, pp. 1338-1342. https://doi.org/10.1109/LAWP.2022.3167284

Wu, F., Xiang, L., Wang, J., Luk, K.-M., & Hong, W. (2022). A Hybrid-Element Approach to Design Wideband ME-Dipole Transmitarray with Improved Aperture Efficiency. IEEE Antennas and Wireless Propagation Letters, 21(7), 1338-1342. https://doi.org/10.1109/LAWP.2022.3167284

Wu F, Xiang L, Wang J, Luk KM, Hong W. A Hybrid-Element Approach to Design Wideband ME-Dipole Transmitarray with Improved Aperture Efficiency. IEEE Antennas and Wireless Propagation Letters. 2022 Jul;21(7):1338-1342. Epub 2022 Apr 13. doi: 10.1109/LAWP.2022.3167284

Wu, Fan ; Xiang, Lei ; Wang, Jingxue et al. / A Hybrid-Element Approach to Design Wideband ME-Dipole Transmitarray with Improved Aperture Efficiency. In: IEEE Antennas and Wireless Propagation Letters. 2022 ; Vol. 21, No. 7. pp. 1338-1342.