TY - JOUR
T1 - A four-channel CMOS front-end for interference-robust GNSS receiver
AU - Han, Fang
AU - Gao, Jian
AU - Li, Xiaoran
AU - Chen, Zhiming
N1 - Publisher Copyright:
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2020/2
Y1 - 2020/2
N2 - A four-channel receiver front-end is designed and implemented for interference-and jamming-robust global navigation satellite system (GNSS) in a 0.18-μm CMOS technology. The front-end consists of four identical RF-to-IF signal paths including low-noise amplifiers (LNAs), mixers and IF amplifiers. In addition, it also includes a phase-locked loop (PLL), which synthesizes the local oscillator (LO) signal, and a serial peripheral interface (SPI) for parameter adjustment. To improve the interference and jamming robustness, a novel linearity improvement technology and LO duty cycle adjustment method are applied in LNA and mixer design, respectively. The receiver achieves a gain of 40 dB, an input-referred third-order intercept point (IIP3) of −8 dBm and a jammer-to-signal power ratio (JSR) of 72 dB under 1.8-V and 3.3-V supply, while occupying a 4 × 5 mm2 die area including the electrostatic discharge (ESD) I/O pads.
AB - A four-channel receiver front-end is designed and implemented for interference-and jamming-robust global navigation satellite system (GNSS) in a 0.18-μm CMOS technology. The front-end consists of four identical RF-to-IF signal paths including low-noise amplifiers (LNAs), mixers and IF amplifiers. In addition, it also includes a phase-locked loop (PLL), which synthesizes the local oscillator (LO) signal, and a serial peripheral interface (SPI) for parameter adjustment. To improve the interference and jamming robustness, a novel linearity improvement technology and LO duty cycle adjustment method are applied in LNA and mixer design, respectively. The receiver achieves a gain of 40 dB, an input-referred third-order intercept point (IIP3) of −8 dBm and a jammer-to-signal power ratio (JSR) of 72 dB under 1.8-V and 3.3-V supply, while occupying a 4 × 5 mm2 die area including the electrostatic discharge (ESD) I/O pads.
KW - CMOS
KW - Duty cycle adjustment
KW - GNSS
KW - Wide-range derivative superposition
UR - http://www.scopus.com/inward/record.url?scp=85079464496&partnerID=8YFLogxK
U2 - 10.3390/electronics9020291
DO - 10.3390/electronics9020291
M3 - Article
AN - SCOPUS:85079464496
SN - 2079-9292
VL - 9
JO - Electronics (Switzerland)
JF - Electronics (Switzerland)
IS - 2
M1 - 291
ER -