Effect of the thermomechanical properties of hybrid materials on the performance enhancement of nano terahertz antennas
DOI:
https://doi.org/10.31349/RevMexFis.71.061004Keywords:
polymer substrates, terahertz antenna, graphene, gold, young’S modulus, thermomechanical propertiesAbstract
This study investigates the impact of the thermomechanical properties of hybrid materials, such as polymer substrates and gold or graphene radiating elements, on the performance enhancement of nano terahertz antennas, with a specific focus on the combination of graphene and polyimide. We analyze how the Young’s modulus of materials like graphene, Gold, PTFE, polycarbonate and polyimide varies with temperature. Results show that graphene maintains high rigidity with minimal decrease in Young’s modulus even at elevated temperatures, whereas gold exhibits a more pronounced reduction. Among polymer substrates, polyimide exhibits increasing rigidity with temperature, making it highly suitable for high-temperature applications. Combining graphene with polyimide to concept terahertz antenna with dimension of 64.97*90.84*1 provides an optimal balance of low reflection coefficients S11 of -20.59dB and high gain of 6.01 dBi, demonstrating excellent performance and stability in the THz frequency range. Hybridizing polymer substrates with graphene or gold antennas merges the mechanical benefits of polymers with the exceptional electrical and optical properties of graphene and gold. This approach facilitates the creation of lighter, more flexible, and durable devices while enhancing performance in terms of sensitivity and resistance across a range of innovative technological applications.
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