Title :
Fully integrated switched dual-band CMOS LNA for 802.11b/g WLAN and WiMAX applications
Author :
Canosa, V. ; Pereira, Manuela ; Gomes, Pedro ; Vaz, J.C. ; Freire, J.C.
Author_Institution :
Inst. de Telecomun., Tech. Univ. of Lisbon, Lisbon, Portugal
Abstract :
A fully integrated switchable dual-band low-noise amplifier (DB-LNA) for 802.11b/g and WiMAX applications is presented. By using switch effective inductance technique for the input matching network (IMN) and a switched LC tank to tune the amplifier gain, dual-band operation for 2.4 GHz and 3.5 GHz bands is achieved. Using a standard 0.18um CMOS process, a dual-band LNA with chip size comparable to a single-band one is designed. The DB-LNA exhibits a noise figure of 3.6 dB and 3.7 dB, input return loss of -12 dB and -19 dB, a power gain of 18 dB and 20 dB at the two frequency bands, respectively.
Keywords :
WiMax; low noise amplifiers; wireless LAN; 802.11b/g WLAN; DB-LNA; WiMAX; amplifier gain; dual-band operation; frequency 2.4 GHz; frequency 3.5 GHz; fully integrated switchable dual-band low-noise amplifier; fully integrated switched dual-band CMOS LNA; gain 18 dB; gain 20 dB; input matching network; loss -12 dB; loss -19 dB; noise figure 3.6 dB; noise figure 3.7 dB; size 0.18 mum; switch effective inductance technique; switched LC tank; Capacitors; Dual band; Impedance; Inductors; Noise; Switches; Switching circuits; 0.18um CMOS; Cascode amplifier; LNA; dual-band;
Conference_Titel :
Microwave Integrated Circuits Conference (EuMIC), 2012 7th European
Conference_Location :
Amsterdam
Print_ISBN :
978-1-4673-2302-4
Electronic_ISBN :
978-2-87487-026-2
