Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline

Journals

Article Types

Countries / Regions

Search Results (2)

Search Parameters:
Keywords = coding-feeding metasurface

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
8 pages, 2418 KB  
Article
Reprogrammable Metasurface Controlled by 2D Thermal Fields
by Ming Zhang, Fuju Ye, Hongrui Tan, Sisi Luo, Haoyang Cui and Lei Chen
Micromachines 2022, 13(11), 2023; https://doi.org/10.3390/mi13112023 - 19 Nov 2022
Cited by 1 | Viewed by 2302
Abstract
The combination of thermal field sensing and microwave operation is an innovative topic in metamaterials. Although there exists research on modulating electromagnetic waves by controlling each column of the metasurface elements for programmable metasurfaces, the regulation is not flexible. In view of this, [...] Read more.
The combination of thermal field sensing and microwave operation is an innovative topic in metamaterials. Although there exists research on modulating electromagnetic waves by controlling each column of the metasurface elements for programmable metasurfaces, the regulation is not flexible. In view of this, this paper proposes a metasurface based on distributed thermal sensing that can be independently modulated by each element. In this paper, the metasurface adopts a 1-bit coding metasurface, which is combined with PIN diodes to modulate the phase response. The voltage control circuit feeds back the change in the thermistors to the switching state of the PIN diode. Each metasurface unit contains thermistors, which are used to sense thermal stimulation and can be independently modulated. The metasurface composed of these elements can feel the field generated via heat energy. We can control electromagnetic waves by controlling this field. In order to prove the feasibility of this scheme, a metasurface sample of 8 × 8 elements was designed. Three patterns were used for the design, fabrication, and measurement of the samples. Meanwhile, printed circuit board (PCB) technology was applied. The results show that the simulated results are highly consistent with the experimental results, which verifies that this scheme is practicable. Full article
(This article belongs to the Special Issue Terahertz and Infrared Metamaterial Devices)
Show Figures

Figure 1

12 pages, 5757 KB  
Article
Multifunctional Coding-Feeding Metasurface Based on Phase Manipulation
by Guo-Shuai Huang, Si-Jia Li, Zhuo-Yue Li, Xiao-Bin Liu, Cheng-Yuan He, Huan-Huan Yang and Xiang-Yu Cao
Materials 2022, 15(19), 7031; https://doi.org/10.3390/ma15197031 - 10 Oct 2022
Cited by 5 | Viewed by 2231
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 [...] Read more.
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. Full article
(This article belongs to the Special Issue Metamaterials and Metasurfaces: Fundamentals and Applications)
Show Figures

Figure 1

Back to TopTop