Title :
Linearized high efficiency HBT MMIC dual band power amplifier module for L-band applications
Author :
Noh, Y.S. ; Park, C.S.
Author_Institution :
Sch. of Eng., Inf. & Commun. Univ., Taejon, South Korea
Abstract :
A highly linearized InGaP/GaAs HBT MMIC power amplifier is demonstrated using a linearized active bias circuit for PCS/wide-CDMA dual band applications. The MMIC amplifier has a single matching network and a single bias circuit commonly for the two different bands. The two-stage HBT MMIC power amplifier exhibits a linear power gain of 25.5(24.5) dB, an output power of 28(28) dBm, power added efficiency of 43(37)%, and ACPR of -41(-44) dBc at 1.25(5) MHz offset frequency under 3.0V operation voltage, and consumes quiescent current of 90(90) mA at output power of 0 dBm for PCS(Wide-CDMA) applications. The MMIC chip size with on-chip integrated linearizer and bias circuit is only 0.84mm×1.1mm. The MMIC chip was packaged on plastic substrates, and the power amplifier module size is as small as 6mm by 6mm
Keywords :
III-V semiconductors; MMIC power amplifiers; UHF integrated circuits; UHF power amplifiers; bipolar MMIC; cellular radio; code division multiple access; gallium arsenide; gallium compounds; heterojunction bipolar transistors; indium compounds; linearisation techniques; personal communication networks; 24.5 dB; 25.5 dB; 3.0 V; 37 percent; 43 percent; 90 mA; ACPR; HBT; InGaP-GaAs; InGaP/GaAs; L-band; MMIC dual band power amplifier; PCS/wide-CDMA applications; active bias circuit; bias circuit; linear power gain; linearized power amplifier module; matching network; on-chip integrated linearizer; output power; power added efficiency; quiescent current; Circuits; Dual band; Gallium arsenide; Heterojunction bipolar transistors; High power amplifiers; MMICs; Operational amplifiers; Personal communication networks; Power amplifiers; Power generation;
Conference_Titel :
Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific
Conference_Location :
Taipei
Print_ISBN :
0-7803-7138-0
DOI :
10.1109/APMC.2001.985372
