System considerations and RF front-end design for integration of satellite navigation and mobile standards

摘要

The paper presents the challengesinvolved in a system design of a robust reconfigurable RF front-end fornavigation and mobile standards. Receiver architecture is chosen from thepoint of view of inter-system interference and 130nm CMOS processcharacteristics. System concept covers the implementation of GPS, Galileo,UMTS, GSM and CDMA2000 using a Zero-IF architecture with reconfigurableanalog and digital path. Feasibility studies of the system cover analysis ofthe wireless regulations and performance criteria, such as overall gain,noise figure (NF), and 1dB compression point (P1dB) of the RF chain, phasenoise requirements and VCO tuning range [1]. The presented chip wasfabricated in 130 nm CMOS technology. System considerations are confirmedwith the chip measurements of gain, noise figure, and linearity. Prospectsfor the future work are presented including technology shrink.