A Hybrid-Element Approach to Design Wideband ME-Dipole Transmitarray with Improved Aperture Efficiency
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
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)
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)
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.
In: IEEE Antennas and Wireless Propagation Letters, Vol. 21, No. 7, 07.2022, p. 1338-1342.
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
