Title :
A Miniaturized Power Combiner for Multiband Outphasing LINC Transmitters
Author :
Amiri, Omid Talebi ; Koukab, Adil
Author_Institution :
Electr. Eng. Dept., Swiss Fed. Inst. of Technol., Lausanne, Switzerland
Abstract :
A new design approach for compact multiband transmitters, using a miniaturized outphasing power combiner is proposed. The technique is applied to design a dual-band (0.9/1.8 GHz) outphasing power amplifier with a fully integrated power combiner in 90-nm CMOS technology. Power losses in the combiner are minimized using high-Q slab inductors. The measured maximum output powers at 0.9 and 1.8 GHz are 24.3 and 22.7 dBm with maximum efficiencies of 51% and 34%, respectively.
Keywords :
CMOS integrated circuits; integrated circuit design; microwave integrated circuits; microwave power amplifiers; power combiners; power inductors; radio transmitters; CMOS technology; Q slab inductor; dual-band outphasing power amplifier; frequency 0.9 GHz; frequency 1.8 GHz; linear amplification with nonlinear component transmitter; multiband outphasing linc transmitter; power combiner; power loss; Antennas; CMOS integrated circuits; Impedance; Inductors; Power amplifiers; Power combiners; Power generation; Linearization techniques; outphasing; power amplifiers; radio frequency integrated circuits; transmission lines;
Journal_Title :
Emerging and Selected Topics in Power Electronics, IEEE Journal of
DOI :
10.1109/JESTPE.2014.2316319
