Title :
A linearization technique of mobile station transmitter power amplifiers for spectrum effective modulations
Author :
Sedinin, Valery I. ; Mikushin, Alexander V. ; Ageeva, Elena A.
Author_Institution :
Siberian State Univ. of Telecommun. & Inf., Novosibirsk, Russia
Abstract :
In this report a technique of linearization of characteristics of power amplifiers of mobile station transmitters using quadrature feedback is considered. The causes of raised requirements to the modern transmitters using spectrum effective modulations are stated. The results of the implementation of the quadrature feedback in tract of the carrier frequency forming in power amplifier are given. The aim of this paper is to investigate and improve the efficiency of transmitter and to decrease the frequency band of transmitted signal.
Keywords :
amplitude modulation; frequency modulation; linearisation techniques; mobile communication; power amplifiers; transmitters; carrier frequency forming; frequency band; linearization technique; mobile station transmitter power amplifier; quadrature feedback implementation; spectrum effective modulation; transmitted signal; Amplitude modulation; Frequency modulation; Linear approximation; Mobile communication; Power amplifiers; Transmitters;
Conference_Titel :
Electron Devices and Materials, 2004. Proceedings. 5th Annual. 2004 International Siberian Workshop on
Print_ISBN :
5-7782-0463-9
DOI :
10.1109/PESC.2004.241134
