Title :
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
fDate :
Oct. 29 2011-Nov. 1 2011
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;
Conference_Titel :
Microwave & Optoelectronics Conference (IMOC), 2011 SBMO/IEEE MTT-S International
Conference_Location :
Natal
Print_ISBN :
978-1-4577-1662-1
DOI :
10.1109/IMOC.2011.6169275
