Optimized envelope tracking operation of Doherty power amplifier for high efficiency over an extended dynamic range

FREE-DOWNLOAD J Choi, D Kang, D Kim… – Microwave Theory and …, 2009 –

This paper presents an optimized envelope tracking (ET) operation of a Doherty
amplifier. Compared to the general ET/envelope elimination and restoration transmitter, it has
an ad- vantage of the extended dynamic range of 6 dB for the load modu- lation of a