Graphene-Assembled Film-Based Reconfigurable Filtering Antenna with Enhanced Corrosion-Resistance

Abstract

Corrosion-resistance is the key to improve the reliability and service lifespan of highly integrated reconfigurable filtering antennae. However, the conventional methodology for corrosion prevention cannot achieve desired effects, due to the limited intrinsic corrosion-resistance capacity of traditional metal-based devices. Here, we developed a reconfigurable filtering antenna based on graphene assembled film (GAF), featuring significant corrosion-resistance enhancement. The GAF-based antenna exhibits comparable electrical performance when compared with a copper-based antenna, and can flexibly switch between two working modes, including ultra-wideband (UWB, 2.8–11 GHz) and narrowband filtering (NBF, 3.23–3.77 GHz). To further demonstrate the of the corrosion-resistance of GAF, a salt spray corrosion test found that the GAF-based antenna exhibits steady electrical properties after corrosion for over 336 h, while the copper-based antenna shows rapid performance degradation. The simulated and experimental results are in agreement, indicating that the proposed GAF reconfigurable filtering antenna can be applied to broader application prospects in communication systems, especially in severe environments.

Dual-Circularly Polarized and Flexible Metasurface Antenna Based on Graphene Assembled Film for Satellite Communications

“…In many previously reported works, metal-based antennas corroded , or damaged by mechanical bending are prone to function inadequacies, which is largely due to the irregular deformations and fractures that emerge as a result of a large number of discontinuous structures. These undesirable structure formations, as have been observed in Figure , tend to augment the energy reflection and shift the operating frequency of the antennas, eventually rendering them inoperable.…”

A Quad-Band and Polarization-Insensitive Metamaterial Absorber with a Low Profile Based on Graphene-Assembled Film

“…Furthermore, GAF's ultra-thin and flexible characteristics can also greatly reduce the difficulty of device preparation [26,27]. GAF has excellent high conductivity, flexibility, corrosion resistance, and high-temperature resistance [28][29][30], which make it an excellent material for making metamaterial absorbers.…”

Recent Advances in the Raman Investigation of Structural and Optical Properties of Graphene and Other Two-Dimensional Materials

“…Graphene and other two-dimensional (2D) materials display exceptional characteristics, making them highly advantageous for a diverse range of applications across various fields [1][2][3][4][5][6][7][8], including flexible nanoelectronics, sensors, and photodetectors [9][10][11][12][13][14][15][16][17].…”