Title :
A configurable multi-band GNSS receiver for Compass/GPS/Galileo applications
Author :
Zhong Zhang ; Weimin Li ; Wu Wen ; Wei Wu ; Yongfeng Li
Author_Institution :
Beijing Microelectron. Technol. Inst., Beijing, China
Abstract :
A configurable multi-band GNSS RF receiver with wide bandwidth in a heterodyne radio topology is implemented for Compass/GPS/Galileo applications in a 0.35μm SiGe BiC-MOS process. The receiver adopts a Σ - Δ fractional-N PLL to generate different local oscillator (LO) signals and down-converts GNSS signals in L1/B1/B2/B3/L1C/E1/E1b, c bands to an identical intermediate frequency (IF) of 46MHz. By the combination of adjustable gain from a variable gain LNA, a 46.3MHz center frequency 25.3MHz bandwidth Gm-C filter and the PGA stages, the receiver achieves a voltage gain of 108dB with 65dB dynamic range. The receiver exhibits a noise figure of less than 3.5dB for all working bands and draws 30mA current from a 3.0V supply while occupying a 3.5×3.8mm2 die area including the ESD protection pads.
Keywords :
BiCMOS integrated circuits; Ge-Si alloys; Global Positioning System; VHF amplifiers; VHF filters; VHF oscillators; compasses; electronics packaging; electrostatic discharge; low noise amplifiers; phase locked loops; radio receivers; radiofrequency integrated circuits; Σ-Δ fractional-N PLL; BiCMOS process; ESD protection pad; Gm-C filter; IF; L1-B1-B2-B3-L1C-E1-E1bc band; LNA; LO; PGA stage; SiGe; bandwidth 25.3 MHz; compass-GPS-Galileo application; configurable multiband GNSS RF receiver; current 30 mA; frequency 46 MHz; frequency 46.3 MHz; gain 108 dB; gain 65 dB; heterodyne radio topology; intermediate frequency; local oscillator; size 0.35 mum; voltage 3.0 V; Bandwidth; Global Navigation Satellite Systems; Global Positioning System; Phase noise; Radio frequency; Receivers;
Conference_Titel :
Circuits and Systems (ISCAS), 2013 IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-5760-9
DOI :
10.1109/ISCAS.2013.6571807
