Title :
A 3.1-4.8 GHz CMOS Mixer Design using Current Bleeding Technique for UWB MB-OFDM Receivers
Author :
Douss, Skandar ; Touati, Farid ; Loulou, Mourad
Author_Institution :
Lab. d´´Electron. et des Technol. de l´´Inf., Nat. Sch. of Eng. of Sfax, Sfax, Tunisia
Abstract :
A design of active mixer intended for the "Mode 1" of ultra wideband multi-band OFDM receivers is presented. It is based on a doubly-balanced Gilbert cell type in which bleeding current sources are added in order to improve linearity and gain. Using an adequate input matching network and optimized device size, it was possible to obtain a good operation of the proposed mixer all over the 3.1-4.8 GHz band with AMS 0.35 ¿m CMOS process parameters. The simulated results show a conversion gain of 12.0 dBm, a noise figure of 7.7 dB and an input IP3 above 0 dBm, when the power consumption is 18 mW under 3V supply voltage.
Keywords :
CMOS analogue integrated circuits; MMIC mixers; OFDM modulation; integrated circuit design; radio receivers; ultra wideband communication; CMOS mixer design; bleeding current source; current bleeding technique; doubly-balanced Gilbert cell; frequency 3.1 GHz to 4.8 GHz; orthogonal frequency division multiplexing; power 18 mW; size 0.35 mum; ultra wideband multiband OFDM receiver; voltage 3 V; wireless receiver; CMOS process; Design engineering; Hemorrhaging; Impedance matching; Linearity; OFDM; Semiconductor device modeling; Signal design; Signal processing; Ultra wideband technology; CMOS Mixer; Wireless receivers; analogue integrated circuit;
Conference_Titel :
Signal Processing and Communications, 2007. ICSPC 2007. IEEE International Conference on
Conference_Location :
Dubai
Print_ISBN :
978-1-4244-1235-8
Electronic_ISBN :
978-1-4244-1236-5
DOI :
10.1109/ICSPC.2007.4728262
