Title :
V.H.F. f.e.t. preamplifier with 0.3 dB noise figure
Author :
Hoult, D.I. ; Richards, R.E.
Author_Institution :
University of Oxford, Department of Biochemistry, Oxford, UK
Abstract :
Using a Plessey gallium-arsenide f.e.t., a preamplifier having a noise figure of 0.3 dB and a stage gain of 22 dB at 129 MHz has been constructed. A summary is given of the design, and the method of alignment, involving a simple inductive 4-port bridge, is also discussed.
Keywords :
field effect transistors; noise; preamplifiers; 0.3 dB noise figure; GaAs FET; VHF FET preamplifier; inductive 4-port bridge; state gain;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19750455
