研究目的
To provide an antenna with capabilities of being wideband, efficient and re-configurable with a simple and single-layer structure for THz communication.
研究成果
The proposed wideband, efficient, and re-configurable graphene-based antenna with double rectangular rings shows promising results for THz communications, with a 26% impedance bandwidth, minimum return loss of 24 dB, and average radiation efficiency of 44%. The antenna's performance can be tuned by adjusting the chemical potential of graphene, offering flexibility for various applications.
研究不足
The study focuses on simulation results without physical prototype testing. The performance is dependent on the accurate modeling of graphene's conductivity and the external DC-bias application.
1：Experimental Design and Method Selection:
The design rationale involves using a nanoribbon graphene-based antenna with double rectangular rings to achieve wideband and efficient radiation response. The tunability and re-configurability of the graphene material by applying an external DC-bias are analyzed.
2：Sample Selection and Data Sources:
The antenna is designed to operate in the THz frequency range, with parameters optimized for performance.
3：List of Experimental Equipment and Materials:
The antenna is located on a substrate of SiO2, with graphene layers and a gold ground plane.
4：Experimental Procedures and Operational Workflow:
The antenna's performance is simulated using CST Microwave Studio with waveguide port excitation and open boundary conditions.
5：Data Analysis Methods:
The simulation results are analyzed to evaluate impedance bandwidth, return loss, radiation efficiency, and gain.
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