Design of a 0.18 μm CMOS multi-band compatible low power GNSS receiver RF frontend
作者： Bing Li , Yiqi Zhuang , Qiang Long , Zhao Jin , Zhenrong Li
DOI: 10.1088/1674-4926/32/3/035007
关键词: Wideband 、 Noise (electronics) 、 CMOS 、 Noise figure 、 Topology (electrical circuits) 、 Electronic engineering 、 Cascode 、 Radio frequency 、 Low-noise amplifier 、 Engineering 、 Electrical engineering
摘要: This paper presents the design and implementation of a fully integrated multi-band RF receiver frontend for GNSS applications on L-band. A single signal channel with low-IF architecture is adopted operation section, which mainly consists low noise amplifier (LNA), down-converter, polyphase filters summing circuits. An improved cascode source degenerated LNA shared off-chip matching network band switches implemented in first amplifying stage. Also, re-designed wideband double balance mixer down conversion stage, provides better gain, figure linearity performances. Using TSMC 0.18 μm 1P4M CMOS process, compact 1.27 GHz/1.575 GHz dual-band realized proposed topology. The measurements exhibit gains 45 dB 43 dB, figures are controlled at 3.35 3.9 two frequency bands, respectively. model consumes about 11.8–13.5 mA current 1.8 V power supply. core occupies 1.91 × 0.53 mm2 while total die area ESD 2.45 2.36 mm2.
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