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.