Premium
Physics‐based modeling and microwave characterization of graphene co‐planar waveguides
Author(s) -
Heo Keun,
Cho KyungSang,
Lee Jae Hyun,
Jang Yamujin,
Kim Sangsig,
Hwang Sung Woo,
Whang Dongmok
Publication year - 2014
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201409104
Subject(s) - photolithography , planar , graphene , chemical vapor deposition , materials science , microwave , radio frequency , optoelectronics , equivalent circuit , rlc circuit , analytical chemistry (journal) , nanotechnology , voltage , capacitor , computer science , chemistry , electrical engineering , telecommunications , engineering , chromatography , computer graphics (images)
In this study, large area mono‐, bi‐, and multi‐layer graphenes (MLG) were synthesized using low pressure chemical vapor deposition (LPCVD) process and co‐planar waveguides (CPW) with graphenes being fabricated using conventional photolithography. The intrinsic room temperature radio frequency (RF) characteristics were measured via direct contact to the graphene surface with a probe–tip in the range of 0.1 GHz to 40 GHz without using metal electrodes. The device characteristics were also evaluated by physics‐based RLC equivalent circuit simulation. The proposed equivalent circuit model reproduced all of the measured characteristics within 3% of RMSE and we numerically extracted the set of component values which minimize the error between the measured data and the simulation results over the measured regime. Our findings demonstrate that MLG is an effective candidate in RF interconnect device applications. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)