资料介绍
A new high efficiency power amplifier for modulated wavesBELL TELEPHONE SYSTEM TECHNICAL P”BUCATlONS
B-93 1
A NEW HIGH-EFFICIENCY POWER AMPLIFIER FOR MODULATED WAVES
W; H. DOHERTY
Bell Telephone Laboratories
DESCRIPTION NEW FORM OF LINEAR OPERATION POWER EFFICIENT
OF A AMPLIPIER DESIGNED TRANSMITTERS FOR
OF HIGH-POWER
A New
High-Efficiency
Power Amplifier Waves
Whippmy,
for Moclulated
By W. H. DOHERTY
Bell Telephone Laboratories, N. J.
This paper introduces a new form of linear power amplifier for modulated radio-frequency waves. Plate circuit efficiencies of 60 to 65 per cent independent of modulation are obtained by means of the combined action of varying load distribution among the tubes and varying circuit impedance over the modulation cycle. The theory of operation is developed and detailed observations on the behavior of tubes