Results 31 to 40 of about 90,040 (285)

Efficient enhancements in spectral domain method to speed up open planar circuit analysis [PDF]

open access: yes, 1998
The spectral domain method is a very fast and powerful technique to analyse planar microwave circuits. Available techniques for simulating the excitation of open planar microwave circuits are not very effective at relatively low frequencies.
Balik, HH, Railton, CJ
core   +2 more sources

A 100-MESFET planar grid oscillator [PDF]

open access: yes, 1991
A 100-MESFET oscillator which gives 21 W of CW effective radiated power (ERP) with a 16-dB directivity and a 20% DC-to-RF conversion efficiency at 5 GHz is presented. The oscillator is a planar grid structure periodically loaded with transistors.
Kim, Moonil   +3 more
core   +1 more source

Instantaneous model of a MESFET for use in linear and nonlinear circuit simulations [PDF]

open access: yes, 1992
A formal approach for nonlinear modeling of FETs is presented. The intrinsic transistor is described by current and charge generators, that are instantaneously dependent on the two internal voltages.
Corbella Sanahuja, Ignasi   +2 more
core   +2 more sources

Quantum efficiency of a microwave photon detector based on a double quantum dot

open access: yes, 2016
Motivated by recent interest in implementing circuit quantum electrodynamics with semiconducting quantum dots, we consider a double quantum dot (DQD) capacitively coupled to a superconducting resonator that is driven by the microwave field of a ...
Vavilov, Maxim G., Wong, Clement H.
core   +1 more source

Coupled Micromachined Magnetic Resonators for Microwave Signal Processing

open access: yesMicromachines
In this paper, the theory, micromachining technology, and experimental results of the coupling of integrated magnetic film-based resonators for microwave signal filtering are presented.
Romolo Marcelli   +3 more
doaj   +1 more source

Simulation and measurement of quasi-optical multipliers [PDF]

open access: yes, 2000
The lumped-element finite-difference time-domain method is used to analyze quasi-optical multipliers based on diode loaded slot antennas. The method is validated firstly for a passive microstrip-fed structure then for the diode loaded case in both small-
Alimenti, Federico   +5 more
core   +2 more sources

Design and Testing of a Low-Tech DEW Generator for Determining Electromagnetic Immunity of Standard Electronic Circuits

open access: yesEnergies, 2021
This article describes the effect of high-power electromagnetic environments (HPEMs) on the operation of all basic elements of electrical power networks. Frequency bands are defined for the HPEM environments. Attention is focused particularly on directed
Libor Dražan   +2 more
doaj   +1 more source

An FET-based microwave active circuit with dual-band negative group delay

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
Recent studies proved that certain electronic active circuits are capable to exhibit simultaneously a negative group delay (NGD) and amplification in microwave frequency bands.
Blaise Ravelo, Serge De Blasi
doaj   +1 more source

Electrically Tuned Microwave Devices Using Liquid Crystal Technology

open access: yesInternational Journal of Antennas and Propagation, 2013
An overview of liquid crystal technology for microwave and millimeter-wave frequencies is presented. The potential of liquid crystals as reconfigurable materials arises from their ability for continuous tuning with low power consumption, transparency ...
Pouria Yaghmaee   +4 more
doaj   +1 more source

Spectroscopy of Three-Particle Entanglement in a Macroscopic Superconducting Circuit

open access: yes, 2005
We study the quantum mechanical behavior of a macroscopic, three-body, superconducting circuit. Microwave spectroscopy on our system, a resonator coupling two large Josephson junctions, produced complex energy spectra well explained by quantum theory ...
A. J. Berkley   +14 more
core   +1 more source

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