Results 101 to 110 of about 9,744 (208)
Integrated-circuit balanced parametric amplifier [PDF]
, 1975 Amplifier, fabricated on single dielectric substrate, has pair of Schottky barrier varactor diodes mounted on single semiconductor chip. Circuit includes microstrip transmission line and slot line section to conduct signals.
Dickens, L. E.
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A varactor-tuned RF coil for nuclear quadrupole double resonance with Fast Field-Cycling MRI [PDF]
, 2014 Non peer reviewedPublisher ...
Broche, Lionel +3 more
core
Maser cavity servo-tuning system [PDF]
, 1985 Two collocated, weakly coupled probes, one loop and one dipole, detect the magnetic and electric fields inside a maser cavity. Signals from the probes are compared in phase, and the signal output from the phase detector is applied to a varactor, the ...
Sydnor, R. L.
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IEEE AccessIn this work, a novel GaN/AlN dual-Schottky junction varactor based on the recess electrode structure of a metal-2DEG-metal contact is prepared, and the capacitance and series resistance are significantly reduced due to the removal of the barrier between
Yuhuan Jiang +7 more
doaj +1 more source
Tunable transmission and harmonic generation in nonlinear metamaterials
, 2008 We study the properties of a tunable nonlinear metamaterial operating at microwave frequencies. We fabricate the nonlinear metamaterial composed of double split-ring resonators and wires where a varactor diode is introduced into each resonator so that ...
Alexander B. Kozyrev +4 more
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IET Microwaves, Antennas & Propagation, 2019 A novel reconfigurable metasurface beam‐steerable reflector for satellite communication which covers the entire Ku‐band, and supports 300 MHz bandwidth, is suggested in this work. The reflector is based on a new type of electromagnetic bandgap.
David Rotshild, Amir Abramovich
doaj +1 more source
Widely tunable multiband reconfigurable patch antenna for wireless applications [PDF]
, 2010 The official published version can be obtained from the link below - Copyright @ EuCAP 2010A design of a low profile reconfigurable microstrip patch antenna is presented. The antenna consists of four suppatches connected to one feed line, each sub-patch
AbuTarboush, HF +4 more
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A 225 MHz FM oscillator with response to 10 MHz [PDF]
, 1970 Frequency-modulated transistor oscillator is used in wideband television transmitters.
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IEEE Journal of MicrowavesWireless communication and sensing applications seek higher frequencies to enable higher data rates or more precise localization using a wider modulation bandwidth. Particularly, 6G and autonomous driving research projects focus on the D-band.
Jonathan Bott +2 more
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Distortion mechanisms in varactor diode-tuned microwave filters [PDF]
, 2006 Carey-Smith, BE, Warr, PA
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