Title :
Enhanced ACPR technique by class AB in PCS driver amplifier
Author :
Ko, Jin-Su ; Kim, Jeong-Keun ; KO, Beom-Kyu ; Cheon, Dong-Bin ; Park, Byeong-Ha
Author_Institution :
CDMA Team, Samsung Electron. Co. Ltd., Kyunggi, South Korea
fDate :
6/21/1905 12:00:00 AM
Abstract :
Simplified relationship between the intermodulation distortion ratio (IM3) on two tone test and the ACPR in CDMA signal test is derived. Due to better linearity (decreased intermodulation distortion and IMD null) at high power level in class AB amplifier, enhanced ACPR performance is achieved at high power input. The comparison between the measured ACPR and the calculated ACPR from two tone test shows that they are in good agreement
Keywords :
UHF amplifiers; cellular radio; code division multiple access; driver circuits; intermodulation distortion; telephone sets; CDMA signal test; PCS handset; adjacent channel power ratio; class AB operation; driver amplifier; intermodulation distortion ratio; linearity; two tone test; Driver circuits; Equations; High power amplifiers; Intermodulation distortion; Multiaccess communication; Personal communication networks; Power amplifiers; Power generation; Telephone sets; Testing;
Conference_Titel :
VLSI and CAD, 1999. ICVC '99. 6th International Conference on
Conference_Location :
Seoul
Print_ISBN :
0-7803-5727-2
DOI :
10.1109/ICVC.1999.820935
