Low-Noise Amplifiers on Magnetotransistors Below 40 GHz



The results of theoretical researches of the physical principles of functioning and ways of design of low-noise amplifiers on the basis of transistor-magnetic structures, which can be promising for satellite communication systems with a raised density of information channels, are considered. Directions of noise decrease (the noise factor below 3.5 dB), and management of the selective properties in magnetotransistor amplifiers with a dynamic range not less than 70 dB, with a minimum level of signal − 156 dBW, and with a saturation signal above − 70 dBW is investigated.


Resonant Frequency External Magnetic Field Transfer Characteristic Transfer Factor Noise Factor 
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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Alexander A. Ignatiev
    • 1
  • Alexander V. Lyashenko
    • 2
  1. 1.Department of PhysicsSaratov State UniversitySaratovRussia
  2. 2.Open Society “Tantal”SaratovRussia

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