A single-chip multi-mode RF front-end circuit and module for W-CDMA, PCS, and GPS applications

Author

Kim, Huijung ; Park, Changjoon ; Choi, Sanghyeok ; Ryu, Seonghan ; Lee, Jongryul ; Kim, Bumman

Author_Institution

Dept. of Electr. Eng., Pohang Univ. of Sci. & Technol., Gyeongbuk

fYear

2005

Firstpage

367

Lastpage

370

Abstract

A single-chip, multi-mode RF front-end circuit for W-CDMA, PCS, and GPS is implemented for direct conversion receiver. Each circuit includes a LNA, mixer and I/Q distributor. The IIP2 of this module (not in GPS band) is over +45 dBm with R_LOAD tuning circuits. The noise figures are less than 3.5 dB in both W-CDMA and PCS bands, and 3.8 dB in GPS band. The silicon area is 5.06 mm² including the PADs. For a small size implementation, the circuit is integrated into a module whose size is 18 mm by 19 mm including SAW filters. The current consumptions from a 2.7 V supply in W-CDMA, PCS, and GPS modes are 37 mA, 37 mA, and 23 mA, respectively

Keywords

Global Positioning System; code division multiple access; personal communication networks; radio receivers; surface acoustic wave filters; 23 mA; 37 mA; GPS; PCS; SAW filters; W-CDMA; direct conversion receiver; single-chip multi-mode RF front-end circuit; tuning circuits; Circuit noise; Circuit optimization; Global Positioning System; Multiaccess communication; Noise figure; Noise measurement; Personal communication networks; RF signals; Radio frequency; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Technology, 2005. The European Conference on

Conference_Location

Paris

Print_ISBN

2-9600551-1-X

Type

conf

DOI

10.1109/ECWT.2005.1617733

Filename

1617733