Dual-Band CPW Graphene Antenna for Smart Cities and IoT Applications

Area of Science:

• Electrical Engineering
• Materials Science
• Antenna Theory

Background:

• The proliferation of smart cities and Internet of Things (IoT) devices necessitates advanced wireless communication solutions.
• Graphene's unique electromagnetic properties offer potential for developing high-performance, miniaturized antennas.
• Existing antenna designs often face limitations in terms of bandwidth, size, and integration capabilities for diverse applications.

Purpose of the Study:

• To design and characterize a dual-band graphene coplanar waveguide antenna.
• To enable seamless integration into smart city and IoT infrastructure.
• To achieve efficient operation across two distinct frequency bands.

Main Methods:

• A dual-band antenna was designed using graphene as the conductive material for radiation patches and ground plane.
• The antenna was fabricated on a glass substrate with specific dielectric properties and thickness.
• Two trapezoidal patches were employed to achieve the desired dual-band behavior.
• Simulations were conducted, and antenna performance metrics including reflection coefficient, gain, and radiation patterns were measured and compared.

Main Results:

• The designed antenna exhibits dual-band operation, covering the 2.45 GHz ISM band and a range from 4 to 7 GHz.
• The antenna was successfully implemented on a 2 mm thick glass dielectric substrate.
• The overall antenna dimensions are compact, measuring 30 mm × 30 mm × 2 mm.
• Measured results showed good agreement with simulation data for key performance parameters.

Conclusions:

• The developed graphene coplanar waveguide antenna is suitable for smart city and IoT applications due to its dual-band performance and compact size.
• The use of graphene and glass substrate facilitates integration into various electronic systems.
• The antenna design demonstrates a viable approach for future wireless communication systems requiring multi-band capabilities.