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Huang GS, Li SJ, Li ZY, Liu XB, He CY, Yang HH, Cao XY. Multifunctional Coding-Feeding Metasurface Based on Phase Manipulation. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7031. [PMID: 36234369 PMCID: PMC9572948 DOI: 10.3390/ma15197031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/30/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Multiple functionalities on a shared aperture are crucial for metasurfaces (MSs) in many applications. In this paper, we propose a coding-feeding metasurface (CFMS) with the multiple functions of high-gain radiation, orbital angular momentum (OAM) generation, and radar cross-section (RCS) reduction based on phase manipulation. The unit cell of the CFMS is composed of a rectangular emission patch and two quasi-Minkowski patches for reflective phase manipulation, which are on a shared aperture. The high-gain radiation and multiple modes of ±1, ±2, and ±3 OAM generation were realized by rationally setting the elements and the phase of their excitation. The CFMS presents a broadband RCS reduction of 8 dB from 3.18 GHz to 7.56 GHz for y-polarization and dual-band RCS reduction for x-polarization based on phase interference. To validate the concept of the CFMS, a prototype was fabricated and measured. The results of the measurement agree well with the simulation. A CFMS with the advantages of light weight and low profile has potential application in detection and wireless communication systems for stealth aircraft.
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Affiliation(s)
- Guo-Shuai Huang
- Information and Navigation College, Air Force Engineering University, Xi’an 710077, China
- Xi’an Satellite Control Center, Xi’an 710043, China
| | - Si-Jia Li
- Information and Navigation College, Air Force Engineering University, Xi’an 710077, China
- State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China
- Shaanxi Key Laboratory of Artificially-Structured Functional Materials and Devices, Air Force Engineering University, Xi’an 710051, China
| | - Zhuo-Yue Li
- Information and Navigation College, Air Force Engineering University, Xi’an 710077, China
| | - Xiao-Bin Liu
- Information and Navigation College, Air Force Engineering University, Xi’an 710077, China
| | - Cheng-Yuan He
- Information and Navigation College, Air Force Engineering University, Xi’an 710077, China
| | - Huan-Huan Yang
- Information and Navigation College, Air Force Engineering University, Xi’an 710077, China
- Shaanxi Key Laboratory of Artificially-Structured Functional Materials and Devices, Air Force Engineering University, Xi’an 710051, China
| | - Xiang-Yu Cao
- Information and Navigation College, Air Force Engineering University, Xi’an 710077, China
- Shaanxi Key Laboratory of Artificially-Structured Functional Materials and Devices, Air Force Engineering University, Xi’an 710051, China
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Li SJ, Han BW, Li ZY, Liu XB, Huang GS, Li RQ, Cao XY. Transmissive coding metasurface with dual-circularly polarized multi-beam. OPTICS EXPRESS 2022; 30:26362-26376. [PMID: 36236830 DOI: 10.1364/oe.466036] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 06/23/2022] [Indexed: 06/16/2023]
Abstract
The Pancharatnam-Berry (PB) phase can be used to control the phase of circularly polarized electromagnetic waves. However, there are few studies on the modulation of dual-circularly polarized multi-beam using the transmissive coding metasurface. A scheme of spin-controlling multi-beam by transmissive coding metasurface is proposed for dual-circular polarization simultaneously. The transmissive coding metasurface (TCMS) can transmit linearly polarized incidence into multi-beam with orthogonally circular polarization. The phase distribution is designed based the convolution theorem, and the elements of metasurface conforming to the PB phase are arranged according to the phase distribution. In order to compensate the emitting spherical waves into plane waves and realize the transmissive waves with dual-circular polarization, an interesting scheme of elements in different regions with different rotating phase are presented based on the principle of phase compensation. TCMS can transmit linearly polarized waves into two left-hand circularly polarized (LHCP) beams and two right-hand circularly polarized (RHCP) beams. The prototype of TCMS is fabricated and measured, and the experimental results agree well with the simulated data. The transmissive metasurface has potential application in holograms and satellite communication.
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