Numerical Studies of Optimized Designs for Carbon Nanotube Microstrip Antennas

TL;DR

This paper uses numerical simulations to optimize the design of flexible, durable carbon nanotube microstrip antennas by analyzing material properties and conductivity patterns to improve microwave performance.

Contribution

It introduces a comprehensive simulation-based approach to optimize CNT microstrip antenna designs considering material and conductivity variations.

Findings

Optimal material parameters for CNT films identified

Conductivity distribution impacts antenna efficiency

Design guidelines for CNT microstrip antennas proposed

Abstract

We perform systematic numerical simulations for carbon nanotube (CNT) film microstrip antennas to fabricate flexible and durable applications in terms of various device design parameters. The selection of appropriate materials for conductive films and a substrate of the conformable and robust microstrip antennas are crucial to increase the radiation efficiency and to reduce the losses while maintaining the mechanical properties. CNTs have been spotlighted as a promising nano-material, exhibiting excellent electrical and mechanical performances as desirable features for microwave wearable devices. Considering the material properties of the conductor and the substrate, we examine the possible ranges of the CNT film conductivities, conductive film thickness, and a dielectric constant and thickness of a substrate. Furthermore, we model non-uniform spatial distributions of conductivity in the CNT film to assess their impact on the antenna performance. Our extensive studies of material constants and conductivity spatial patterns propose design guidelines for optimal microstrip antennas made of CNT conductive films operating in microwave frequencies.