Title :
Broadband 60-W HF linear amplifier
Author :
Pitzalis, Octavius, Jr. ; Horn, Robert E. ; Baranello, Ronald J.
fDate :
6/1/1971 12:00:00 AM
Abstract :
The design, construction and performance of a solid-state untuned 2-30 MHz amplifier is described. Operation is from 28 V dc. Overall CW efficiency is greater than 47 percent at 60-w unfiltered output. Amplifier efficiency for two-tone 60-W PEP output is greater than 31 percent. two-tone linearity over the frequency range is -30 dB or better at output powers from 5-60 W. Broadband transmission-line transformers wound on ferrite toroids are used throughout for impedance matching. Hybrids of similar construction are used for output-power adding.
Keywords :
Radiofrequency amplifiers; Wideband amplifiers; radiofrequency amplifiers; wideband amplifiers; Broadband amplifiers; Frequency; Hafnium; Linearity; Power amplifiers; Power generation; Solid state circuits; Transformers; Transmission lines; Wounds;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.1971.1049662
