Results 71 to 80 of about 5,321 (175)

Independently Tunable Concurrent Dual-Band VCO Using Square Open-Loop Resonator

open access: yesIEEE Access, 2018
A concurrent dual-band voltage-controlled oscillator (VCO) with independently tunable dual oscillation frequencies is proposed. A shared square open-loop dual-mode resonator and two varactor diodes are the basic units offering flexible tuning for the ...
Boqiong Li   +3 more
doaj   +1 more source

Sub‐Terahertz Memristor Switches Using MoS2 by Liquid–Liquid Interface Assembly

open access: yesAdvanced Science, Volume 13, Issue 49, 3 September 2026.
This work introduces application‐ready sub‐terahertz memristor switches fabricated from electrochemically exfoliated MoS2 nanosheets assembled at a liquid–liquid interface. The devices exhibit robust unipolar resistive switching, low insertion loss, and high isolation across 10–110 GHz.
Tomás Mingates   +15 more
wiley   +1 more source

Comparison of Antennas Electrical Tuning Methods for Mobile Applications

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2017
The various methods of antenna electrical tuning for mobile handsets working in several LTE frequency bands are described. The PIFA-type antenna containing high and low frequency branches is proposed.
A. D. Grigoriev, B. Djalilov
doaj  

Study of quasi-optical circuit techniques in varactor multipliers [PDF]

open access: yes, 1970
Quasi-optical circuit techniques in varactor ...
Kopcsay, G. V.   +3 more
core  

Stability and bifurcation behaviour of electrostatic torsional NEMS varactor influenced by dispersion forces

open access: yes, 2007
The influences of Casimir and van der Waals forces on the nano-electromechanical systems (NEMS) electrostatic torsional varactor are studied. A one degree of freedom, the torsional angle, is adopted, and the bifurcation behaviour of the NEMS torsional ...
林文惠   +2 more
core   +1 more source

Reliability analysis of torsional varactor

open access: yes, 2007
A torsional MEMS varactor with wide dynamic range, lower actuation voltage and isolation between actuation voltage and signal voltage has been proposed in C. Venkatesh et al. (2005).
Bhat, Navakanta, Venkatesh, C
core  

Varactor-tunable second-order bandpass frequency-selective surface with embedded bias network

open access: yes, 2016
A varactor-tunable second-order bandpass frequency-selective surface (FSS) for microwave frequencies is presented in this article. The FSS is composed of three stacked metallic layers.
Said Al-Sarawi (522726)   +4 more
core  

Study of quasi-optical circuit techniques in varactor multipliers [PDF]

open access: yes, 1969
Quasi-optical circuit techniques in varactor ...
Kurpis, G. P., Taub, J. J.
core  

Progress in Heterostructure Barrier Varactor Frequency Multipliers

open access: yes, 2000
The Heterostructure Barrier Varactor diode and its performance as a varactor frequency multiplier is ...
Dillner, Lars   +4 more
core  

Planar Inverted-F Antennas (PIFA) for multiband wireless applications [PDF]

open access: yes, 2010
This is a post-print version of the article - Copyright @ 2010 IEEEA compact reconfigurable four bands Planar Inverted-F Antenna (PIFA) is presented for Digital Video Broadcasting – Handheld (DVB-H), Universal Mobile Telecommunications System (UMTS ...
AbuTarboush, HF, Nilavalan, R, Peter, T
core   +2 more sources

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