A tunable microwave slot antenna based on graphene

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OSA | OL Vol. 40 Iss. 20

Technical Program Schedule | Imarc 2018 Invited Talk: Compact Microwave and Terahertz Instruments on Cube Sate Platforms, phased waveguide array: Topics by Science.gov A synthesis method, using simulated annealing and downhill simplex, is described next and different antenna designs, based on the analysis of a single element in an infinite array environment, are presented. Eucap 2015: The 9th European Conference on Antennas and…

A Microwave Field Effect Transistor Based on Graphene

(PDF) A tunable microwave slot antenna based on graphene ... In [28], a tunable slot antenna based on CVD-grown graphene operating from 8 to 12 GHz has been proposed by Dragoman et al. As displayed in Figure 7a, the antenna is designed based on coplanar waveguide configuration and fabricated on the 4 inch high resistivity silicon wafer... Applications of Graphene at Microwave Frequencies Graphene nano-platelets produced by means of micro-wave irradiation, putting the graphite in a standard microwave oven.VASILACHE, D., DINESCU, A., KONSTANTINIDIS, G., MENCARELLI, D., PIERANTONI, L., MODREANU, M. A tunable microwave slot antenna based on graphene.

Graphene enables tunable microwave antenna - The…

A tunable microwave slot antenna based on graphene A tunable microwave slot antenna based on graphene Mircea Dragoman,1 Dan Neculoiu,1,2 Alina-Cristina Bunea,1,2,a) George Deligeorgis,3 Martino Aldrigo,1 D. Vasilache,1 A. Dinescu,1 George ... A tunable microwave slot antenna based on graphene ... The paper presents the experimental and modeling results of a microwave slot antenna in a coplanar configuration based on graphene. The antennas are fabricated on a 4 in. high-resistivity Si wafer, with a ∼300 nm SiO2 layer grown through thermal oxidation. A CVD grown graphene layer is transferred on the SiO2. The paper shows that the reflection parameter of the antenna can be tuned by a DC ...

We present terahertz (THz) detectors based on top-gated graphene field effect transistors (GFETs) with integrated split bow-tie antennas. The GFETs were fabricated using graphene grown by chemical vapor deposition (CVD). The THz detectors are capable of room-temperature rectification of a 0.6 THz signal and achieve a maximum optical responsivity better than 14 V/W and minimum optical noise ...

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Graphene based functional devices: A short review ...

T HE NEED for low-cost, recongurable antenna beam A basic reectarray collimates waves from a nearby feeding antenna into a pencil beam by applying a phase correction to the scattered eld at each elementTunable Graphene.1. (a) Spiraphase-type reectarray based on ring slot resonators with switchable radial stubs. (b) Geometry of a single element. A Microwave Field Effect Transistor Based on Graphene In this way, microwave switches can be implemented based on the specific charge carrier transport in graphene. The maximum stable gain of the transistor isroom temperature [4], and (iii) tunable input impedances around 50 Ω, specific for RF applications, in microwave devices based on graphene [5]... Graphene antenna - Wikipedia A graphene antenna is a proposed high-frequency antenna based on graphene, a one atom thick two dimensional carbon crystal, that would enhance radio communications. The unique structure of graphene would enable these enhancements. Integrated Microwaves Packaging Antennas and Circuits…