Title :
Design optimization methodology of CMOS direct down-conversion Mixer for wireless sensors
Author :
Thabet, Hanen ; Masmoudi, Mohamed
Author_Institution :
Electron., Micro-Technol. & Commun. Res. Group, Nat. Eng. Sch. of Sfax, Sfax
Abstract :
This paper presents simulation results of an active down-conversion Mixer used in a frequency-hopped spread-spectrum receiver operating in the 863-870 MHz European band for wireless sensor applications. The doubly-balanced Mixer is designed using the Gilbert cell with the current-reuse bleeding technique based on the 0.35-mum technology. The various parameters of the Mixer, as noise figure, conversion gain and linearity are simulated and optimized to meet Mixer specifications. The Mixer simulations show 12.5 dB conversion gain, -10.25 dBm CP-1dB, and 9.74 dB NF.
Keywords :
CMOS integrated circuits; frequency hop communication; mixers (circuits); radio receivers; spread spectrum communication; wireless sensor networks; CMOS direct down-conversion mixer; European band; Gilbert cell; active down-conversion mixer; current-reuse bleeding technique; design optimization methodology; doubly-balanced mixer; frequency-hopped spread-spectrum receiver; wireless sensor applications; wireless sensors; Design optimization; Frequency; Gain; Hemorrhaging; Linearity; Mixers; Noise figure; Noise measurement; Spread spectrum communication; Wireless sensor networks; CMOS technology; Direct down-conversion Mixer; conversion gain; current-reuse bleeding technique; linearity; noise figure;
Conference_Titel :
Design and Technology of Integrated Systems in Nanoscale Era, 2008. DTIS 2008. 3rd International Conference on
Conference_Location :
Tozeur
Print_ISBN :
978-1-4244-1576-2
Electronic_ISBN :
978-1-4244-1577-9
DOI :
10.1109/DTIS.2008.4540267
