Multiband direct RF-sampling receiver front-end for WLAN in 0.13 μm CMOS

Author

Andersson, Stefan ; Ramzan, Rashad ; Dabrowski, Jerzy ; Svensson, Christer

Author_Institution

Dept. of Electr. Eng., Linkoping Univ., Linkoping

fYear

2007

Firstpage

168

Lastpage

171

Abstract

In this paper a flexible RF-sampling front-end primarily intended for WLAN operating in the 2.4 GHz and 5- 6 GHz bands is presented. The circuit is implemented in a 0.13 mum CMOS process with certain built-in test features. It consists of a wideband LNA and a SC discrete-time decimation filter used as a sampling IQ down-converter. The architecture is generic and scalable in frequency and it can operate at a sampling frequency up to 3 GHz and RF carrier up to 6 GHz. The decimation factor is 8 or 16 rendering the following A/D conversion feasible. The frequency response, linearity, and NF of the whole front-end have been measured. At the power consumption of 176 mW the circuit achieves specs that are satisfactory for WLAN applications.

Keywords

CMOS integrated circuits; low noise amplifiers; radio receivers; switched capacitor filters; wideband amplifiers; wireless LAN; CMOS; WLAN; multiband direct RF-sampling receiver; switched capacitor discrete-time decimation filter; wideband LNA; Built-in self-test; CMOS process; Circuits; Filters; Frequency response; Linearity; Radio frequency; Sampling methods; Wideband; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuit Theory and Design, 2007. ECCTD 2007. 18th European Conference on

Conference_Location

Seville

Print_ISBN

978-1-4244-1341-6

Electronic_ISBN

978-1-4244-1342-3

Type

conf

DOI

10.1109/ECCTD.2007.4529563

Filename

4529563