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DC and radio-frequency transmission characteristics of double-walled carbon nanotubes-based ink
In this paper, double-walled carbon nanotubes (DWNTs) network layers were patterned using inkjet transfer printing. The remarkable conductive characteristics of carbon nanotubes (CNTs) are considered as promising candidates for transmission line as well as microelectronic interconnects of an arbitrary pattern. In this work, the DWNTs were prepared by the catalytic chemical vapor deposition process
Impact of the CNT growth process on gold metallization dedicated to RF interconnect applications
Carbon nanotubes (CNTs) are a unique group of materials with high aspect ratio, mechanical and electrical properties, which are of great interests in the field of interconnects, and radio frequency applications. In order to incorporate CNTs into any of these applications successfully, one important issue that has to be resolved is the critical parameters (temperature and reactant gases) associated
60 GHz current gain cut-off frequency graphene nanoribbon FET
We report investigations on the fabrication and characterization of graphene nanoribbon (GNR) field-effect transistors. Graphene layers are obtained from the thermal decomposition of a Si-face 4H-SiC substrate. To achieve high dynamic performance, a structure with an array of GNR connected in parallel was fabricated by e-beam lithography. The best intrinsic current gain cut-off frequency of 60 GHz
A carbon-nanotube-based frequency-selective absorber
A recently developed material based on carbon nanotubes is used here for the realization of single- and double-layered frequency-selective surfaces (FSSs) with relevant absorbing properties. The peculiar characteristics of carbon nanotubes are exploited to devise high-loss resonant ring structures periodically arranged to build the FSS. By introducing two layers of rings, an absorber with stable c
Simulation of microwave optical links and proof of noise figure lower than electrical losses
The operation of a microwave photonic link is thoroughly investigated both theoretically and experimentally. To this aim, we have developed a simulation tool based on an accurate physical model embedded in a radio frequency (RF) chain simulator. The theoretical predictions are tested on an intensity modulation-direct detection (IMDD) link we have specifically developed to this purpose. Our simulat
MRF volume 2 issue 5 Cover and Back matter
MRF volume 2 issue 5 Cover and Front matter
Microwave characterization and DC measurements of CPW line based on a wide graphene sheet
Microwave characterization and DC measurements of CPW line based on a wide graphene sheet A.Cismaru, M.Dragoman, D.Neculoiu IMT Bucharest, 32B, Erou Iancu Nicolae str., 077190 Bucharest, Romania alina.cismaru@imt.ro G. Deligiorgis, G. Konstantinidis FORTH-IESL-MRG Heraklion, PO Box 1527, Heraklion, Crete, Greece R. Plana LAAS CNRS, 7 Avenue du Colonel Roche, 31077 Toulouse Cedex 4, France D. Dr
System requirements and achievements for RF-MEMS in space
System requirements and achievements for RF-MEMS in space V. Ziegler1, W. Gautier2, A. Stehle2, B. Schoenlinner1, U. Prechtel1 1 EADS Innovation Works, Dept.: Sensors, Electronics and Systems Integration, 81663 Munich, Germany 2 Now with: EADS Deutschland GmbH, Defence Electronics, Woerthstr. 85, D-89077 Ulm, Germany the performance of the systems. In other words, miniaturization and reconfigura
Evaluation of tunable FBARs with improved performance
Evaluation of tunable FBARs with improved performance Andrei Vorobiev Department of Microtechnology and Nanoscience Chalmers University of Technology Göteborg, Sweden e-mail: andrei.vorobiev@chalmers.se Spartak Gevorgian Microwave and High Speed Electronics Research Center Ericsson AB Mölndal, Sweden e-mail: spartak.gevorgian@chalmers.se Abstract-- The tunable solidly mounted Ba0.25Sr0.75TiO3 th