Analog automatic gain control (AGC) CMOS WLAN direct conversion receiver (DCR)

Author

Ximenes, Augusto R. ; Swart, Jacobus W.

Author_Institution

Sch. of Electr. & Comput. Eng., State Univ. of Campinas - UNICAMP, Campinas, Brazil

fYear

2011

fDate

Oct. 29 2011-Nov. 1 2011

Firstpage

185

Lastpage

190

Abstract

The exponential growth of wireless communication in portable device market has been increasing the demand for very flexible RF transceivers, including the ability of communicating in an unpredictable environment, from very weak to highly powered signal levels without losing its functionality. In this paper we present an automatic continuous gain control CMOS receiver for 2.4GHz ISM band with minimum NF of 1.45dB at highest gain mode, ICP of -9dBm at lowest gain mode, and gain variation of 30dB, from 40dB to 10dB. It contains a continuous variable gain LNA, a down-conversion Mixer and a RMS-detector consuming 30mW under 1.8V power supply.

Keywords

CMOS integrated circuits; automatic gain control; low noise amplifiers; mixers (circuits); radio receivers; radio transceivers; telecommunication control; wireless LAN; AGC; CMOS; DCR; ISM band; LNA; RF transceivers; RMS-detector; WLAN; analog automatic gain control; direct conversion receiver; down-conversion mixer; frequency 2.4 GHz; gain 10 dB; gain 30 dB; gain 40 dB; noise figure 1.45 dB; portable device; power 30 mW; voltage 1.8 V; wireless communication; Gain; Gain control; Mixers; Noise; Noise measurement; RLC circuits; Resistance;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave & Optoelectronics Conference (IMOC), 2011 SBMO/IEEE MTT-S International

Conference_Location

Natal

ISSN

Pending

Print_ISBN

978-1-4577-1662-1

Type

conf

DOI

10.1109/IMOC.2011.6169275

Filename

6169275