منابع مشابه
Design and Fabrication of a 911 GHz Balanced Low Noise Amplifier Using HJFET
This paper describes the design of an X-band balanced low noise amplifier (LNA) using an available HJFET device. The balanced LNA consists of a pair of electrically similar transistors whose input and output signals are divided or combined by 3 dB two-stage Wilkinson power dividers. The proposed balanced LNA is fabricated and measured. The measured results show that the noise figure is 1.30 dB ...
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Raman amplifiers are widely used for high capacity long haul communication systems. One of the main reason for which it can be used is its improved noise figure. In this paper noise figure of Raman amplifiers is studied and analysed for different pumping schemes. The main sources of noise and their effects on the noise figure are discussed and the methods to reduce the noise figure are proposed.
متن کاملNoise Figure Analysis Of Distributed Fibre Raman Amplifier
Fibre Raman amplifiers are being deployed in many new long-haul and ultra long-haul fibre-optic transmission systems, making them the first and most widely commercialized nonlinear optical devices in telecommunications. One of the main reasons for this is their improved noise figure and reduced nonlinear penalty of fibre systems hence allowing for longer amplifier spans. In this paper, we have ...
متن کاملA 0.4 dB noise figure wideband low-noise amplifier using a novel InGaAs/InAlAs/InP device
In this work, the design of a novel low noise amplifier (LNA) based on 1μm gate-length InGaAs/InAlAs/InP pHEMT transistors is discussed. Designed for radio astronomy applications, this amplifier exploits a common drain configuration as an input stage and a common source inductive degeneration topology as an output stage. It exhibits a maximum gain of 30 dB within an input 1dB compression point ...
متن کاملA 1.2 V Low-Noise-Amplifier with Double Feedback for High Gain and Low Noise Figure
Faculdade de Ciências e Tecnologia Departamento de Engenharia Eletrotécnica e de Computadores Mestrado Integrado em Engenharia Eletrotécnica e de Computadores por David Jorge Tiago Amoêdo In this thesis we present a balun low noise amplifier (LNA) in which the gain is boosted using a double feedback structure. The circuit is based in a Balun LNA with noise and distortion cancellation. The LNA i...
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ژورنال
عنوان ژورنال: IEEE Transactions on Circuits and Systems II: Express Briefs
سال: 2018
ISSN: 1549-7747,1558-3791
DOI: 10.1109/tcsii.2018.2801759