Title :
A concurrent quadrature sub-sampling mixer for multiband receivers
Author :
Heragu, Aravind ; Balasubramanian, Viswanathan ; Enz, Christian
Author_Institution :
Integrated Syst. Lab., Ecole Polytech. Fed. de Lausanne, Lausanne, Switzerland
Abstract :
A quadrature sub-sampling direct conversion mixer capable of sampling two or more bands concurrently using a single sampling frequency is presented. The implementation of the mixer to sample a band in quadrature and downconvert it to baseband is discussed and it is shown how this idea could be extended to sample in quadrature two or more bands concurrently. The proposed circuit is analyzed in detail and the results are validated using Spectre RF simulations for a 0.18 mum CMOS process.
Keywords :
CMOS integrated circuits; mixers (circuits); radio receivers; CMOS process; Spectre RF simulation; concurrent quadrature sub-sampling mixer; multiband receiver; size 0.18 mum; Baseband; Capacitors; Circuits; Clocks; Filtering; Filters; Laboratories; Mixers; Radio frequency; Sampling methods;
Conference_Titel :
Circuit Theory and Design, 2009. ECCTD 2009. European Conference on
Conference_Location :
Antalya
Print_ISBN :
978-1-4244-3896-9
Electronic_ISBN :
978-1-4244-3896-9
DOI :
10.1109/ECCTD.2009.5274924
