Experimental Microwave Complex Conductivity Extraction of Vertically Aligned MWCNT Bundles for Microwave Subwavelength Antenna Design

Abstract

This paper reports the extraction of electrical impedance at microwave frequencies of vertically aligned multi-wall carbon nanotubes (VA MWCNT) bundles/forests grown on a silicon substrate. Dedicated resonating devices were designed for antenna application, operating around 10 GHz and benefiting from natural inductive/capacitive behavior or complex conductivity in the microwave domain. As obtained from S-parameters measurements, the capacitive and inductive behaviors of VA MWCNT bundles were deduced from device frequency resonance shift.

Large‐Scale‐Compatible Stabilization of a 2D Semiconductor Platform toward Discrete Components

“…ii) Be compatible with targeted applications (CMOS and RF) relying on a low‐loss low‐cost substrate already used in many RF applications. [ 10,22–26 ] For this reason we selected an already known substrate, highly‐resistive silicon covered by 780 nm of SiO 2 (HR‐Si/SiO 2 ). iii) Develop processes that are compatible with large‐scale integration (at least 4‐inches wafer).…”

Editorial for the Special Issue on “Nanodevices for Microwave and Millimeter Wave Applications”

“…In [3] Tripon-Canseliet et al achieved the microwave extraction of the electrical impedance of vertically aligned multi-wall carbon nanotube (VA MWCNT) bundles/forests grown on a silicon substrate. Dedicated resonating devices were designed for antenna application, operating around 10 GHz and benefiting from a natural inductive/capacitive behavior or complex conductivity in the microwave domain.…”