Millimeter wave (220 GHz–330 GHz) characterizations of carbon nanotube films
Hai-Peng Fu,
Chuang Yang,
Kai-Xue Ma,
Hui Huang,
Jian-Guo Ma,
Ya-Li Li,
Yan-Ru Kang,
Jun-Xiao Ma,
Xiang-Dong Huang
Affiliations
Hai-Peng Fu
Tianjin Key Laboratory of Imaging and Sensing Microelectronic Technology, School of Microelectronics, Tianjin University, Tianjin 300072, China
Chuang Yang
Tianjin Key Laboratory of Imaging and Sensing Microelectronic Technology, School of Microelectronics, Tianjin University, Tianjin 300072, China
Kai-Xue Ma
Tianjin Key Laboratory of Imaging and Sensing Microelectronic Technology, School of Microelectronics, Tianjin University, Tianjin 300072, China
Hui Huang
Xinchen Technologies Co., Ltd., Beijing 100029, China
Jian-Guo Ma
School of Computers, Guangdong University of Technology, Guangzhou 510006, China
Ya-Li Li
Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
Yan-Ru Kang
Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
Jun-Xiao Ma
Institution of Telecommunication Satellite, China Academy of Space Technology, Beijing 100094, China
Xiang-Dong Huang
School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China
A carbon nanotube (CNT) film on a substrate is characterized at millimeter waves (220 GHz−330 GHz) by metal rectangular waveguide scattering parameters (S-parameters) measurements. The anisotropy of the CNT film is investigated for different orientations of the on-substrate CNT film. The standard Nicolson–Ross–Weir (NRW) approach has been adopted to extract the complex permittivity (εr=ε′-jε″) and permeability (μr=μ′-jμ″) of the on-substrate CNT film from the measured S-parameters. The effective medium theory is then applied to remove the impact of the substrate and characterize the intrinsic CNT film. The observed frequency independent and anisotropic behaviors of the CNT film are very promising indicators that this material could be invaluable for a range of millimeter-wave applications.
