Antenna design. This antenna is a single resonant antenna at 5 THz. As the second antenna, we propose a triple resonant Fabry-Perot cavity which when a dipole graphene patch is placed inside it, we could have a directive antenna at 4.7, 5 and 5.3 THz by tuning the graphene's conductivity. Tunable antenna radome based on graphene frequency In this paper, a graphene-based frequency selective surface (FSS) is proposed. The proposed FSS exhibits a tunable bandpass filtering characteristic due to the alterable conductivity of the graphene strips which is controlled by chemical potential. Based on the reconfigurable bandpass property of the proposed FSS, a cylindrical antenna radome is designed using the FSS unit cells. Flexible and wearable 2.45 GHz CPW-fed antenna using In this article, we report a miniaturization and fully printed flexible antenna based on silver-nanoparticle that is wearable, mechanically tunable, and reversibly deformable. The geometry and dimensions of the proposed antenna were simulated and optimized. Meanwhile, the fabrication procedure was presented.
L. Pierantoni, D. Mencarelli, F. Coccetti, “Graphene-based wireless communications systems: analysis of the EM-quantum transport of coupled nano-patch antennas”, Proc. of the 1th IEEE MTT-S Wireless Power Transfer Conference (WPTC-2013), Perugia, May 15-26, 2013.
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
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...
Our evaluation is based on measurements on several sectors in a 2.6 GHz Long Term Evolution (LTE) cellular network... with electrical antenna downtilt in the range from 0 to 10 degrees, as well as predictions based on ray-tracing and 3D …
(PDF) A tunable microwave slot antenna based on graphene
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 ... Flexible and wearable 2.45 GHz CPW-fed antenna using ...
In this article, we report a miniaturization and fully printed flexible antenna based on silver-nanoparticle that is wearable, mechanically tunable, and reversibly deformable. The geometry and dimensions of the proposed antenna were simulated and optimized. Meanwhile, the fabrication procedure was presented.
Our calculations are based on a hybrid layer-multiple-scattering (hLMS method based on a discrete-dipole approximation (DDA/T-matrix point matching method. rf phase shifters: Topics by WorldWideScience.org A quasi-linear phase shift of 360° with ~2dB radio frequency power variation at a microwave frequency of 40GHz is obtained...We demonstrate tunable microwave phase shifters based on electrically tunable silicon-on-insulator dual-microring …
Ferrite-film-based microwave feedback rings have recently been used to self-generate stationary peri-odic short microwaveIn our experiments, the dual-tunable microwave generators based on ferrite andTo excite and receive waves in the multiferroic waveguide two microstrip antennae were used. Optically tunable microwave antennas for 5G applications Multiband tunable antennas are a critical part of many communication and radar systems. New research by engineers at the University of Bristol4.2GHz – 6 GHz optically tunable cavity backed slot antenna. Silicon samples can be seen in the slot and an optical fibre is being held in place over... Antenna gain enhancement by using metamaterial... |… The reconfigurable concept of a graphene loaded patch antenna with increasing gain is proposed in this paper. We have developed the patch antenna with inset feed for THzSheng, S., Li, K., Kong, F., Zhuang, H.: Analysis of a tunable band-pass plasmonic filter based on graphene nanodisk resonator. Graphene Enables Tunable Microwave Antenna 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...Now researchers have demonstrated an antenna made from graphene, operating in the microwave part of the spectrum and tunable with external voltage.