DocumentCode
3597135
Title
A study on efficiency improvement of Doherty amplifier using LDMOS FET for WiMax networks
Author
Kwon, Hyukyong ; Yoo, Chae up ; Kim, Min-su ; Yang, Younggoo
Author_Institution
Dept. of Mobile Commun. Eng., Sungkyunkwan Univ., Suwon
Volume
2
fYear
2009
Firstpage
1406
Lastpage
1409
Abstract
This paper describes Doherty technology, which has been used in design of WiMax power amplifier to improve its high efficiency and linearity. Doherty amplifier´s efficiency compare to AB Class power amplifier, 2-way LDMOS FET (2 pcs) has been applied. The results have showed that Doherty amplifier has 10% higher efficiency compare to usual AB Class power amplifier.
Keywords
UHF power amplifiers; WiMax; field effect transistor circuits; 2-way LDMOS FET; Doherty amplifier design; WiMax power amplifier design; amplifier efficiency improvement; Circuit faults; Cities and towns; FETs; Frequency division multiplexing; High power amplifiers; Impedance; Linearity; Operational amplifiers; Power amplifiers; WiMAX; ACLR (Adjacent Channel Leakage Ratio); DPA (Doherty Power Amplifier); EVM (Error Vector Magnitude); OFDM (Orthogonal Frequency-division Multiplexed); Power-Add Efficiency (PAE);
fLanguage
English
Publisher
ieee
Conference_Titel
Advanced Communication Technology, 2009. ICACT 2009. 11th International Conference on
ISSN
1738-9445
Print_ISBN
978-89-5519-138-7
Electronic_ISBN
1738-9445
Type
conf
Filename
4809678
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