Issue |
EPL
Volume 138, Number 6, June 2022
|
|
---|---|---|
Article Number | 64001 | |
Number of page(s) | 6 | |
Section | Nuclear and plasma physics, particles and fields | |
DOI | https://doi.org/10.1209/0295-5075/ac7744 | |
Published online | 07 July 2022 |
Shared meta-aperture system for the frequency-induced reconfigurable multiple beams
1 National Key Laboratory of Antennas and Microwave Technology, School of Electronic Engineering, Xidian University - Xi'an 710071, China
2 Engineering University of PAP - Xi'an 710086, China
(a) ruiyang.xidian@gmail.com (corresponding author)
(b) bsbs1980@sina.com (corresponding author)
Received: 27 October 2021
Accepted: 9 June 2022
We demonstrate the perfect synthesis of multiple beams with different radiating states at dual frequencies through a shared meta-aperture system, consisting of a checkerboard meta-lens with two kinds of gradient meta-atoms distributed in a diagonally staggered manner and a polarization converting meta-mirror possessing periodic skew double-headed arrow array. The co-linearly polarized (co-LP) waves reflected by the inner surface of the checkerboard meta-lens would be twisted into the cross-LP counterparts by the meta-mirror and then penetrate the checkerboard meta-lens to form the high-purity cross-LP directive multi-beams at one frequency. Meanwhile, the other polarization orthogonal meta-array over the outer surface of the checkerboard meta-lens would also be capable of transforming the released cross-LP fields back and create the co-LP multi-beams at another frequency. Especially, the frequency sensitivity of such shared meta-aperture system is discussed through comparing different sets of the synthesized multiple beams, and the multi-functional meta-surface coating over the checkerboard meta-lens will fundamentally determine the overall radiating patterns and the operating bandwidth. In addition, the proposed design through integrating composite functional meta-surfaces also possesses the merits of generating high-polarization purity multiple beams at different frequencies, thus should pave the way for building up more advanced shared-aperture meta-radiators with highly efficient connections in the contemporary wireless communications.
© 2022 EPLA
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.