Search results for "Microwave amplifier"

showing 3 items of 3 documents

Bimodal Approach for Noise Figures of Merit Evaluation in Quantum-Limited Josephson Traveling Wave Parametric Amplifiers

2022

The advent of ultra-low noise microwave amplifiers revolutionized several research fields demanding quantum-limited technologies. Exploiting a theoretical bimodal description of a linear phase-preserving amplifier, in this contribution we analyze some of the intrinsic properties of a model architecture (i.e., an rf-SQUID based Josephson Traveling Wave Parametric Amplifier) in terms of amplification and noise generation for key case study input states (Fock and coherents). Furthermore, we present an analysis of the output signals generated by the parametric amplification mechanism when thermal noise fluctuations feed the device.

Superconducting microwave devicesMicrowave photonicMicrowave amplifiersCondensed Matter - SuperconductivityPhysicsFOS: Physical sciencesMicrowave photonics Noise figure Superconducting microwave devices.Condensed Matter PhysicsNoise figureSettore ING-INF/01 - ElettronicaSuperconducting microwave deviceElectronic Optical and Magnetic MaterialsSuperconductivity (cond-mat.supr-con)BandwidthMicrowave amplifierBandwidth; Gain; Microwave amplifiers; Microwave photonics; Noise figure; Physics; Superconducting microwave devicesMicrowave photonicsHardware_INTEGRATEDCIRCUITSPhysicGainElectrical and Electronic EngineeringPhysics Gain Microwave amplifiers Noise figure Superconducting microwave devices Microwave photonics Bandwidth Microwave photonics noise figure superconducting microwave devicesMicrowave photonics; Noise figure; Superconducting microwave devicesIEEE Transactions on Applied Superconductivity
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Synthetic approach to the design of wide-band microwave injection-locked amplifiers

2010

In this work, a synthesis-based approach to the realization of wide-band microwave injection-locked amplifiers (ILA) is proposed. To this purpose, a transmission-type topology is combined with a feedback structure in which the "core ILA" is intentionally separated from the output (power) amplifier. A modular, matched, design of individual building blocks of the core ILA is then adopted, which allows their first-approximation exact modeling in the dynamical complex-envelope domain, following the theory earlier developed by Calandra-Sommariva. On this basis, analytic expressions for the main operating characteristics of the ILA (such as the locking bandwidth under small signal operation) are …

injection locked amplifiers microwave amplifiers network topolog transistor circuitsSettore ING-INF/01 - Elettronica
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Approach to the Design of Transmission-Type Injection-Locked Microwave Oscillators through Behavioral Block Modeling

2010

In this work, an attempt is made toward the development of a systematic design method for the performance- driven dimensioning of the various elements comprising the structure of modern transistor-based microwave injection- locked oscillators with transmission-type topologies (TILOs). The proposed approach is based on the use of appropriate diakoptics of the various circuit blocks into a matched environment, and their behavioral modeling in the fundamental- frequency dynamical complex envelope domain with the help of standard circuit and E.M. simulation CAD tools. This will permit, in the end, to obtain closed-form expressions for the main TILO performances in terms of the design parameters…

injection locked amplifiers microwave amplifiers network topology transistor circuitsSettore ING-INF/01 - Elettronica
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