DocumentCode
1188829
Title
High-Gain Amplifier for 150 Megacycles
Author
Rodwin, G. ; Klenk, L.M.
Author_Institution
Bell Telephone Laboratories, New York, N.Y.
Volume
28
Issue
6
fYear
1940
fDate
6/1/1940 12:00:00 AM
Firstpage
257
Lastpage
261
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;
fLanguage
English
Journal_Title
Proceedings of the IRE
Publisher
ieee
ISSN
0096-8390
Type
jour
DOI
10.1109/JRPROC.1940.229062
Filename
1687169
Link To Document