Title :
A phase-shifting up-converter for 30GHz phased array applications
Author :
Pei, Yu ; Chen, Ying ; Leenaerts, Domine M W ; Mahmoudi, Reza
Author_Institution :
NXP Semicond., Eindhoven, Netherlands
Abstract :
This paper demonstrates a new phase-shifting up-converter targeted for 30GHz advanced phased array beamforming applications. The approach makes use of a phase-oversampling vector modulator in the LO domain to generate variable phases and amplitudes for each array element. A complex gain constellation with 81 points can be formed with 10° phase resolution and 2-bit amplitude resolution. The up-converter has a measured maximal conversion gain of +10dB and OIP3 of +3dBm while consuming 393mW from a 3.3V supply voltage. Implemented in 0.25-μm SiGe:C BiCMOS the up-converter has a compact core area of 0.135mm2.
Keywords :
BiCMOS analogue integrated circuits; Ge-Si alloys; array signal processing; carbon; convertors; field effect MMIC; phase shifters; BiCMOS technology; LO domain; OIP3; SiGe:C; advanced phased array beamforming applications; amplitude resolution; complex gain constellation; frequency 30 GHz; phase resolution; phase-oversampling vector modulator; phase-shifting up-converter; phased array applications; power 393 mW; size 0.25 mum; voltage 3.3 V; word length 2 bit; Array signal processing; Arrays; Frequency conversion; Gain; Radio frequency; Radio transmitters; Switches; beamforming; frequency divider; phase shifter; phase-oversampling; phased array; vector modulator;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2012 IEEE
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4673-0413-9
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2012.6242331
