DocumentCode
3018673
Title
A fully digital polar modulator for switch mode RF power amplifier
Author
Ostrovskyy, Philip ; Scheytt, Christoph ; Lee, SungJun ; Park, Bonghyuk ; Jung, Jaeho
Author_Institution
IHP GmbH, Frankfurt (Oder), Germany
fYear
2012
fDate
20-23 May 2012
Firstpage
2385
Lastpage
2388
Abstract
In this paper, a novel fully digital modulator for a switch mode power amplifier (SMPA) is presented. The modulator converts the input baseband amplitude and phase signals into a two-level pulse train for driving an RF SMPA. The simulation results demonstrated a proof of the concept. The proposed architecture is analyzed in terms of accuracy by measuring EVM. The impact of the modulator parameters on the SMPA performance is investigated and corresponding results are shown. The modulator was simulated with a 20 MHz LTE signal.
Keywords
power amplifiers; switched mode power supplies; EVM; LTE signal; RF SMPA; SMPA performance; baseband amplitude; frequency 20 MHz; fully digital polar modulator; modulator parameter; phase signal; switch mode RF power amplifier; two-level pulse train; Computer architecture; Encoding; Frequency modulation; Power amplifiers; Radio frequency; Switches;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems (ISCAS), 2012 IEEE International Symposium on
Conference_Location
Seoul
ISSN
0271-4302
Print_ISBN
978-1-4673-0218-0
Type
conf
DOI
10.1109/ISCAS.2012.6271777
Filename
6271777
Link To Document