Graphene-Based Microwave Circuits: A Review

Area of Science:

• Materials Science
• Electrical Engineering
• Condensed Matter Physics

Background:

• Two-dimensional (2D) materials, particularly graphene, have garnered significant research interest over the past two decades.
• Graphene's exceptional carrier mobility makes it a leading candidate for high-frequency applications.

Purpose of the Study:

• To review the current research on the use of graphene in micro- and millimeter-wave circuits.
• To provide a comprehensive overview of graphene-based device fabrication and application in high-frequency electronics.

Main Methods:

• Review of different methodologies for graphene growth and transfer.
• Analysis of fabrication techniques for graphene-based field-effect transistors (GFETs) and diodes.
• Examination of the integration of GFETs and graphene diodes into micro- and millimeter-wave circuits.

Main Results:

• Graphene's potential in high-frequency circuits is demonstrated through various device implementations.
• Established methods for graphene synthesis and device fabrication are discussed.
• Performance characteristics and limitations of graphene in micro- and millimeter-wave applications are highlighted.

Conclusions:

• Graphene exhibits significant potential for high-frequency applications in micro- and millimeter-wave circuits.
• Further research is needed to overcome existing limitations and fully realize graphene's capabilities in these domains.
• The review provides insights into the current state and future prospects of graphene in advanced electronic circuits.