Abstract
Presents a graphic design method for low-noise, low-input-VSWR (voltage standing wave ratio) amplifiers, where all necessary design information is placed in the input impedance plane. As a consequence of the bilinear transformations involved, all parameters can be represented by circles whose center and radius are in the input impedance plane. For a given set of the noise figure and input VSWR the maximum achievable gain and corresponding terminations can be determined by inspection of the graph. Furthermore, not only do the analytic expressions make the calculations very fast but the results of changes in the noise figure, input VSWR, and gain can be viewed directly.< >
Keywords
Standing wave ratio
Noise figure
Low-noise amplifier
Amplifier
Electrical impedance
Computer science
Noise (video)
Amplifier figures of merit
Y-factor
Acoustics
Electrical engineering
Electronic engineering
Telecommunications
Engineering
Physics
Bandwidth (computing)
Artificial intelligence
Subject Areas
Radio Frequency Integrated Circuit Design
·Electrical and Electronic Engineering ·Physical Sciences
Advanced Power Amplifier Design
·Electrical and Electronic Engineering ·Physical Sciences
Microwave Engineering and Waveguides
·Electrical and Electronic Engineering ·Physical Sciences
Citations by Year
2016: 1
2017: 1
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