While THz leaky-wave antennas based on homogenized metasurfaces are shown to be able to produce directive patterns with particularly good efficiencies, those based on graphene or nematic liquid crystals are shown to be able to dynamically reconfigure their radiating features. George Deligeorgis - Google Scholar Citations This "Cited by" count includes citations to the following articles in Scholar. Coplanar waveguide on graphene in the range 40 MHz–110 GHz. ... Applied Physics Letters 99, 033112, 2011. 41: 2011: A tunable microwave slot antenna based on graphene. M Dragoman, D Neculoiu, AC Bunea, G Deligeorgis, M Aldrigo, ... Applied Physics Letters 106 ... (PDF) 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 similar to 300 nm SiO2 layer grown through thermal oxidation.
A tunable microwave slot antenna based on graphene. Applied Physics Letters 106, 153101 (2015). Wu B. et al. Microwave absorption and radiation from large-area multilayer CVD graphene. Carbon 77, … Graphene for Antenna Applications: Opportunities and frequency and bias voltage for a graphene reconfigurable polarizer. consisting of two layers of graphene on a Si2N3 substrate (unit. cell dimensions in figure inset, identical for each layer of. graphene, themselves separated by 50nm). Graphene based functional devices: A short review Oct 16, 2018 · S. A. Naghdehforushha and G. Moradi, High directivity plasmonic graphene-based patch array antennas with tunable THz band communications, Optik 168, 440 (2018) ADS CrossRef Google Scholar 108. R. Bala and A. Marwaha, Characterization of graphene for performance enhancement of patch antenna in THz region, Optik 127 (4), 2089 (2016) ADS CrossRef
Research on graphene has revealed its remarkable electro-optic properties, which promise to satisfy the needs of future electro-optic modulators.With a suitable gate voltage, the dielectric constant of graphene can be tuned to be very small due to the effect of intraband electronic transition, resulting...
A highly directive graphene antenna embedded inside a ... A highly directive tunable antenna based on graphene is investigated. • The directivity of the proposed antenna is enhanced about 10.7 dB. • A triple resonant highly directive antenna at 4.7, 5 and 5.3 THz are designed.
A current challenge in photonics is to design new versatile photodetectors based on optical-rectification-induced photovoltage; these are more attractive than classical photodetectors because they do not rely on band-to-band transitions.
Terahertz Photoconductive Antennas to Detect Terahertz Waves - Продолжительность: 1:02 TeTechSdesign and simulate the tapered slot antenna in hfss(2) - Продолжительность: 10:47MIT Physicists Have Found a Brand New Way to Unleash Graphene's Superconductive Power...
Graphene-based nano-patch antenna for terahertz radiation ...
By changing the pattern on the ground, the impedance matching characteristics of the antenna are much better. The -10 dB impedance bandwidth of the proposed antenna is 3.85–15.62 GHz, which is about 267% broader. Radioengineering - April 2018, Volume 27, Number 1 [DOI: 10… The monopole antenna is modified using microstrip transition in the feedline and block with a triangular-shape slot on each side of the circular patch to produce wider impedance bandwidth with better return loss. e-newsletter #3 detected signal at the position (0,0) – perpendicular to the metallization – in two conditions: (i) placing a microwave absorbent on the backside of the antenna (ii) placing metallic surface on the backside of the antenna.
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 ... A tunable microwave slot antenna based on graphene ...