Reconfigurable THz Plasmonic Antenna Concept Using a Graphene Stack

TL;DR

This paper introduces a reconfigurable Terahertz antenna based on a graphene stack that can be dynamically tuned across a wide frequency range, enabling compact and efficient THz transceivers and sensors.

Contribution

It presents a novel graphene-based reconfigurable antenna concept with a qualitative model explaining impedance stability and tunability for THz applications.

Findings

Achieves wide frequency reconfigurability via electric field in graphene

Demonstrates high miniaturization and impedance stability

Shows potential for future THz transceivers and sensors

Abstract

The concept and analysis of a Terahertz (THz) frequency-reconfigurable antenna using graphene are presented. The antenna exploits dipole-like plasmonic resonances that can be frequency-tuned on large range via the electric field effect in a graphene stack. In addition to efficient dynamic control, the proposed approach allows high miniaturization and good direct matching with continuous wave THz sources. A qualitative model is used to explain the excellent impedance stability under reconfiguration. These initial results are very promising for future all-graphene THz transceivers and sensors. Keywords: Reconfigurable antenna, Graphene, Plasmons, Terahertz, frequency-tuning.