Title :
High-Gain Amplifier for 150 Megacycles
Author :
Rodwin, G. ; Klenk, L.M.
Author_Institution :
Bell Telephone Laboratories, New York, N.Y.
fDate :
6/1/1940 12:00:00 AM
Abstract :
An ultra-high-frequency amplifying system is described which operates at about 150 megacycles with an over-all gain of 114 decibels and transmitted band of over 2 megacycles. An output power of 2.5 watts is available with a signal-to-distortion ratio of 60 decibels. By a frequency-shifting modulator in the amplifier chain the input and output are made to differ by 10 megacycles. A filter-type circuit is used as the interstage coupling to give the necessary band width.
Keywords :
Capacitance; Coils; Coupling circuits; Frequency modulation; Impedance; Power amplifiers; Power generation; Radio frequency; TV; Telephony;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1940.229062
