Antenna based on graphene fractal artificial magnetic. Conductor. Hussein A. Abdulnabi and Riffat T. Hussiein Department ofRaad S. Fyath Department of Computer Engineering, AL-Nahrain University Baghdad, Iraq. ABSTRACT In this paper a tunable antenna using... Graphene enables tunable microwave antenna – Graphenea Graphene antennae in the microwave part of the spectrum can be tuned by an applied voltage. This is the latest result, published in the renown physics journal Applied Physics Letters , by a pan-European collaboration between Romania, Greece, Italy, and Ireland, using Graphenea graphene. Researchers demonstrate a graphene-based tunable … The antenna is less than 1mm thick and has a planar diameter of 100mm, which according to the team makes it one of the smallest microwave antennas in the existence. It was produced using a simple fabrication procedure and a standard CVD graphene layer on an SoI substrate. Terahertz Leaky-Wave Antennas Based on... | IntechOpen While THz leaky-wave antennas based on homogenized metasurfaces are shown to be able toOpen access peer-reviewed chapter. Terahertz Leaky-Wave Antennas Based on Metasurfaces and TunableThese two types of excitations suggest to realize a quasi-resonant slot (thus modeling a...
Electrically tunable mid-infrared antennas based on VO2
May 31, 2018 ... In Reference [6,7], graphene-based antennas devised in microwave frequency and ... Owing to its negative imaginary conductivity, research on tunable ..... (a) Broadband optically transparent H-shaped slot antenna above the ... THz plasmonic resonances in hybrid reduced-graphene-oxide and ... Fullwave analysis of hybrid metal-graphene-rGO is also presented and discussed. ... and Modreanu, M. A tunable microwave slot antenna based on graphene, ... Silicon graphene waveguide tunable broadband microwave photonics ... implement a tunable broadband microwave photonics phase shifter based ... “ Nanoscale electro-optic modulators based on graphene-slot waveguides,” J. ..... phased antenna arrays, microwave filters and reconfigurable front-ends [12,13]. A.
In this Chapter, we focus on three different classes of leaky-wave antennas, based on either metasurfaces or tunable materials, namely graphene and nematic liquid crystals.
A tunable microwave slot antenna based on graphene. Appl Phys Lett Applied Physics Letters 106 (2015). Google Scholar. 9. Antenna-Integrated 0.6 THz FET Direct Detectors Based on Abstract. 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... Development of Graphene Based Tapered Slot Antennas for D material, a variety of antenna types are studied based on graphene covering microwave to THz frequency range [15–19]. Although investigation of graphene based TSA still remains an unexplored area of research in the literature, some wideband and UWB antennas based on graphene have been designed and analyzed from different point of views recently. The design of a wideband single-layer dual-band
Periodic and Quasi-Periodic Graphene-Based
2016-AIPAdvances-0609-Graphene-based Yagi-Uda antenna-石墨烯 - Graphene-based Yagi-Uda antenna with ... 百度首页 登录 加入VIP 享专业文档下载特权 赠共享文档 ... The design of a wideband single-layer dual-band ... A design for a broadband single-layer dual-band reflectarray antenna is presented. A genetic algorithm is employed to design and optimize the element of the antenna. The basic idea to improve the bandwidth of the proposed antenna is based on increasing the range of the linear region of the phase response of the microstrip element. Optically Transparent Microwave Polarizer Based On Quasi ... Optically Transparent Microwave Polarizer Based On Quasi-Metallic Graphene. Optically Transparent Microwave Polarizer Based On Quasi-Metallic Graphene. ... A tunable microwave slot antenna based ...
Commission D: Electronics and Photonics
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 ... Operation of a variety of devices, including tunable antennae 8, optical modulators and waveguides 9,10,11,12,13,14, ... A tunable microwave slot antenna based on graphene. Graphene based functional devices: A short review ... Graphene offers multiple functions of signal transmission, emission, modulation, and detection in a broad band, high speed, compact size, and low loss. Here, we have a brief view of graphene based functional devices at microwave, terahertz, and optical frequencies. Their fundamental physics and computational models were discussed as well. Antenna-Integrated 0.6 THz FET Direct Detectors Based on ... 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 design for a broadband single-layer dual-band reflectarray antenna is presented. A genetic algorithm is employed to design and optimize the element of the antenna. The basic idea to improve the bandwidth of the proposed antenna is based on increasing the range of the linear region of the phase response of the microstrip element. Optically Transparent Microwave Polarizer Based On Quasi ...