EFFICIENCY OF THE VHF DIGITAL BROADCASTING AMPLIFIER WITH LINERAR AND NON-LINEAR
ENVELOPE TRACKING
Ivan
V.
Dulov
Moscow Technical University of Communications and Informatics (MTUCI)
Received
March
20, 2012
Abstarct. The
paper covers an issue of increasing of the efficiency of a digital broadcasting
amplifier using envelope tracking. Linear and nonlinear envelope tracking is researched;
advantages and disadvantages of both types of the envelope tracking are
discussed. Statistics of the digital broadcasting signal is shown. Threshold
voltage of the envelope tracking is evaluated.
Keywords: power
amplifier, digital broadcasting, envelope tracking.