DocumentCode
2153867
Title
CDMA handset power amplifier with diode load modulator
Author
Seungwoo Kim ; Lee, Kyungho ; Zampardi, Peter J. ; Kim, Bumman
Author_Institution
Dept. of Electr. Eng., Pohang Univ. of Sci. & Technol., Gyeongbuk, South Korea
fYear
2005
fDate
12-17 June 2005
Abstract
A new monolithic PA for 836 MHz CDMA cellular phone is developed using a simple diode based load modulator at the output matching circuit. The modulation network allows power level dependent load impedances for better power-added efficiencies. Especially, the PAE at the lower output power range, less than 10 dBm where most of handset operation arises, is increased more than 80%.
Keywords
impedance matching; microwave power amplifiers; mobile handsets; modulators; 80 percent; 836 MHz; CDMA cellular phone; CDMA handset power amplifier; diode load modulator; load impedances; modulation network; monolithic PA; output matching circuit; power level dependent; power-added efficiencies; Circuits; DC-DC power converters; Diodes; Impedance matching; Insertion loss; Multiaccess communication; Power amplifiers; Power generation; Telephone sets; Voltage control;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Symposium Digest, 2005 IEEE MTT-S International
ISSN
01490-645X
Print_ISBN
0-7803-8845-3
Type
conf
DOI
10.1109/MWSYM.2005.1516690
Filename
1516690
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