手机rf and baseband designAn RF to Baseband Design for a PCS1900 Handset Liam Devlin, Steve Fitz, Geoff Smithson The authors are with Plextek Ltd, London Road, Great Chesterford, Essex, CB10 1NY, Engand (+44 1799 533 200) difference between the systems, is the frequency of operation. This is summarised in Table 1. Standard GSM900 DCS1800 GSM1900 Uplink (Mobile to BTS) 890-915MHz 1710-1785MHz 1850-1910MHz Downlink (BTS to Mobile) 935-960MHz 1805-1880MHz 1930-1990MHz Abstract GSM is currently the most widely adopted digital cellular telephony standard in the world. This paper presents details of the design of the RF to baseband section of a PCS1900 cellular handset. Detailed block diagrams, circuit descriptions and measured performance are presented. The radio has been designed to operate with a baseband Evaluation ……