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. Development of Graphene Based Tapered Slot Antennas Furthermore, the eectiveness of designed graphene based tapered slot antennas is revealed by comparing their performances with other existing UWB antennas.The recongurable characteristic of the antenna was obtained due to the tunable graphene conductivity. In microwave frequency range... Tunable Microwave Absorber Based on Patterned Graphene Two approaches to realize a tunable absorber based on patterned graphene metasurface are proposed in this paper. In the first approach, different from avai.The second approach, by implying the stack of graphene as the absorbing layer, can introduce a remarkable shift of the center frequency. A tunable microwave slot antenna based on... - Graphene…
Miniaturized tunable terahertz antenna based on graphene
this type of antennas very attractive also for applications element with a single-bit phase shifter is adopted in [20] to requiring beam-scanning capabilities or pattern reshaping design a large electronically reconfigurable reflectarray … 2018 IEEE International Symposium on Antennas and Propagation… A Quadri-Polarization Patch Antenna Based ON A Novel Broadband Feeding Network Wednesday Crossed-Slot Cavity UWB Impulse Radiation Study on Multiple Stream 08:30h - 08:50h
Terahertz Graphene-Based Reconfigurable Patch Antenna.Electronically tunable reflectarrays possess a number of advantages over traditional antenna array implementations. This results from the unique blend of concepts from reflector antennas and antenna arrays.
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 Abstract. 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 SiO{sub 2} layer grown through thermal oxidation.
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 ...
A tunable microwave slot antenna based on graphene Mircea Dragoman , Dan Neculoiu , Alina-Cristina Bunea , George Deligeorgis , Martino Aldrigo , D. Vasilache , A. A tunable microwave slot antenna based on graphene ...
DESIGN AND PERFORMANCE INVESTIGATION OF TUNABLE UWB THZ ...
dual band thermal: Topics by WorldWideScience.org This technique is based on a delicately designed topology of L- and Ku- band microwave filters. The two band-pass responses are generated by a capacitively-loaded square-loop frequency selective surface and an aperture-coupled frequency … dielectric resonator antenna: Topics by WorldWideScience.org On top of the slot there is an air cavity and on top, a small portion of a hemispherical lens. The fractional bandwidth of such antennas is around 10 percent, which is good enough for heterodyne imaging applications.The new geometry makes …
Abstract. 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 similar to 300 nm SiO2 layer grown through thermal oxidation. Microwave Study of Field-Effect Devices Based on Graphene ... A tunable microwave slot antenna based on graphene. Appl Phys Lett Applied Physics Letters 106 (2015). Google Scholar. 9.