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Reconfigurable graphene antenna for THz applications: a mode conversion approach
1Madanapalle Institute of Technology & Science, Madanapalle, Andhra Pradesh, 517325-India.
Nanotechnology
|December 12, 2019
Summary
This study presents a tunable graphene antenna. Applying gate voltage reconfigures the antenna
Area of Science:
- Antenna Engineering
- Materials Science
- Electrical Engineering
Background:
- Graphene's unique electronic properties enable novel antenna designs.
- Reconfigurable antennas are crucial for adaptive wireless communication systems.
Purpose of the Study:
- To design and numerically analyze a reconfigurable graphene antenna.
- To demonstrate frequency tuning and radiation pattern steering using gate voltage.
Main Methods:
- Numerical analysis of a graphene antenna structure comprising a radiating patch and a non-radiating ring.
- Investigation of electromagnetic field distribution and mode conversion ([Formula: see text] to [Formula: see text]) under applied gate voltage.
Main Results:
- The antenna's operating frequency is tunable via gate voltage applied to the graphene patch.
- Gate voltage at the graphene ring periphery alters the antenna's operational mode from horizontal magnetic dipole to vertical electric dipole.
- The radiation pattern can be steered by strategically applying gate voltage.
Conclusions:
- The proposed graphene antenna offers reconfigurability in both frequency and radiation pattern.
- This design provides a pathway for developing advanced adaptive antennas for future wireless applications.
