Design of a dual-channel multi-mode GNSS receiver with a∑△ fractional-N synthesizer

作     者：龙强 庄奕琪 阴玥 李乐 王晋 李振荣 刘乾坤 王磊 

作者机构：National Key Laboratory of Wide Band-Gap Semiconductor TechnologySchool of MicroelectronicsXi'dian University China Key SystemCETCWuxi 214072China 

出 版 物：《Journal of Semiconductors》 (半导体学报（英文版）)

年 卷 期：2012年第33卷第11期

页      码：83-89页

摘      要：A 72 mW highly integrated dual-channel multimode GNSS（global navigation satellite system） receiver with aΣ△fractional-N synthesizer which covers GPS L1 and the Compass B1/B2/B3 band is *** chip was fabricated in a TSMC CMOS 0.18μm process and packaged in a 48-pin 3×3 mm^2 land grid array chip scale *** work achieves NF≤5.3 dB without an external LNA,channel gain = 105 dB for channel one （Compass B2 and B3 band）,and channel gain = 110 dB for channel two（GPS L1 and Compass B1 band）.Image rejection（IMRR） = 36 dB,phase noise is -115.9 dBc @ 1 MHz and -108.9 dBc @ 1 MHz offset from the carrier for the two channels *** the low power consumption,multibands of GNSS are compatible in one chip, which is easy for consumers to use,when two different navigation signals are received simultaneously.

主 题 词：compass G_m C filter Σ△fractional N synthesizer LNA GNSS 

学科分类：08[工学] 080401[080401] 081105[081105] 0804[工学-材料学] 0825[工学-环境科学与工程类] 0811[工学-水利类] 

核心收录：

D　O　I：10.1088/1674-4926/33/11/115005

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