AffiliationDepartment of Electrical and Computer Engineering, University of Arizona
Department of Aerospace and Mechanical Engineering, University of Arizona
Department of Electronic Engineering and Information Science, University of Science and Technology of China
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CitationTuo, M., Xu, D., Li, S., Liang, M., Zhu, Q., Hao, Q. and Xin, H., 2016. Nonlinear Microwave Characterization of CVD Grown Graphene. IEEE Antennas and Wireless Propagation Letters, 15, pp.1557-1560.
Rights© 2016 IEEE.
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AbstractLinear and nonlinear microwave properties of chemical vapor deposition (CVD)-grown graphene are characterized by incorporating a coplanar waveguide (CPW) transmission-line test structure. The intrinsic linear transport properties (S-parameters) of the graphene sample are measured and extracted via a deembedding procedure and then fitted with an equivalent circuit model up to 10 GHz. A statistical uncertainty analysis based on multiple measurements is implemented to esti- mate the error of the extracted graphene linear parameters as well. Nonlinear properties (second- and third-order harmonics as a function of fundamental input power) of the sample are also measured with a fundamental input signal of 1 GHz. Clear harmonics generated from graphene are observed, while no obvious fundamental power saturation is seen. The measured nonlinearity is applied in a graphene patch antenna case study to understand its influence on potential applications in terms of third-order intermodulation levels.
VersionFinal accepted manuscript