Results 101 to 110 of about 9,979 (227)
Millimetre-wave varactor multipliers
Electronics Letters, 1966 Results are presented of measurements on frequency doublers in the millimetre-wave region employing unencapsulated silicon varactor diodes types ZC103 and ZC70D and a gallium-arsenide/phosphor-bronze point-contact varactor.
F.A. Benson, W.F. Winder
openaire +1 more source
Varactor-Based Continuously Tunable Microstrip Bandpass Filters: A Review, Issues and Future Trends
IEEE AccessElectronically tuned bandpass filters are crucial frequency-selective devices in tunable RF front-ends and are extensively utilized in the fields of communications and sensing.
Mengjie Qin +6 more
doaj +1 more source
Parametric Amplification/Mixing Using the Varactor Diode
Active and Passive Electronic Components, 1996 This paper deals with the large-signal analysis of parametric amplification/mixing using reverse biased p-n junction varactor diodes. Expressions are obtained for the current components of the parametric amplification/mixing.
Muhammad Taher Abuelma'atti
doaj +1 more source
A Reconfigurable MIMO/UWB MIMO Antenna for Cognitive Radio Applications
IEEE Access, 2019 A novel multi-mode frequency reconfigurable MIMO and an ultrawideband (UWB) MIMO antenna design for cognitive radio applications is proposed in this paper.
Xiongwen Zhao +2 more
doaj +1 more source
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
Reconfigurable Reflectarrays and Array Lenses for Dynamic Antenna Beam Control: A Review
, 2013 Advances in reflectarrays and array lenses with electronic beam-forming capabilities are enabling a host of new possibilities for these high-performance, low-cost antenna architectures.
Hum, Sean Victor +1 more
core +1 more source
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
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.
core +1 more source
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
Efficient millimeter wave 1140 GHz/ diode for harmonic power generation [PDF]
, 1967 Epitaxial gallium arsenide diode junction formed in a crossed waveguide structure operates as a variable reactance harmonic generator.
core +1 more source