Title :
A differential 2.4 GHz switched-gain CMOS LNA for 802.11b and Bluetooth
Author :
Point, Robert ; Mendes, Michael ; Foley, William
Author_Institution :
Global Commun. Devices, North Andover, MA, USA
Abstract :
This report presents a fully differential 2.4 GHz LNA with step gain control for use in IEEE 802.11b and Bluetooth systems. The LNA was fabricated using a commercial 0.25 um 1P5M mixed signal CMOS process. Measured results show a gain of 14.7 dB, noise figure of 2.88 dB and IIP3 of -0.5 dBm. A gain of -14.2 dB and IIP3 of +19 dBm were measured in the switched low gain mode, which will provide an additional 29 dB of dynamic range to a fully integrated receiver.
Keywords :
Bluetooth; CMOS integrated circuits; IEEE standards; differential amplifiers; gain control; mixed analogue-digital integrated circuits; mobile computing; mobile radio; radio receivers; wireless LAN; -14.2 dB; 0.25 micron; 14.7 dB; 1P5M mixed signal CMOS process; 2.4 GHz; 2.88 dB; Bluetooth; CMOS LNA; IEEE 802.11b; differential LNA; integrated receiver; step gain control; switched-gain LNA; Bluetooth; CMOS process; Circuits; Gain measurement; Impedance matching; Linearity; Noise figure; Noise measurement; Signal design; Wireless LAN;
Conference_Titel :
Radio and Wireless Conference, 2002. RAWCON 2002. IEEE
Print_ISBN :
0-7803-7458-4
DOI :
10.1109/RAWCON.2002.1030157
