Title :
An integrated 2 GHz 20 dBm 3 V wide band differential power amplifier with microstrip antenna interface
Author :
Cartalade, David ; Senn, Patrice ; Pache, Denis ; Perea, Ernesto ; GHALI, Hany ; Fournier, Jean-Michel
Author_Institution :
CNET, Meylan, France
fDate :
29 Sep-2 Oct 1998
Abstract :
A highly efficient fully differential power amplifier (PA) for mobile terminals around 2 GHz is realized in 0.5 μm BiCMOS process. The commonly used interface baluns are replaced by a 180° microstrip power divider and combiner. A microstrip power combiner is used to match the differential output impedance of the power amplifier with the usual 50 Ω antenna load. A maximum output power of 20 dBm is obtained from a single 3 V power supply. The amplifier small signal gain is about 20 dB over a 1 GHz bandwidth. The power added efficiency (PAE) is 25%
Keywords :
BiCMOS integrated circuits; UHF power amplifiers; cellular radio; differential amplifiers; impedance matching; microstrip antennas; power combiners; power dividers; wideband amplifiers; 0.5 micron; 1 GHz; 180° microstrip power combiner; 180° microstrip power divider; 2 GHz; 20 dB; 25 percent; 3 V; 50 ohm; BiCMOS process; UHF; antenna load; bandwidth; differential output impedance matching; digital cellular systems; integrated wide band differential power amplifier; maximum output power; microstrip antenna interface; mobile terminals; power added efficiency; power supply; small signal gain; BiCMOS integrated circuits; Differential amplifiers; High power amplifiers; Impedance matching; Loaded antennas; Microstrip antennas; Power amplifiers; Power combiners; Power dividers; Wideband;
Conference_Titel :
Signals, Systems, and Electronics, 1998. ISSSE 98. 1998 URSI International Symposium on
Conference_Location :
Pisa
Print_ISBN :
0-7803-4900-8
DOI :
10.1109/ISSSE.1998.738115
