Title :
Analog Filter Bank for Cochlear Radio
Author :
Albuquerque, D.F. ; Vieira, J.M.N. ; Carvalho, N.B. ; Pereira, J.R.
Author_Institution :
Dept. of Electron., Telecommun. & Inf., Univ. of Aveiro, Aveiro, Portugal
Abstract :
In this paper, we propose a design for the analog part of an Hybrid Filter Bank (HFB) system targeted to radio-frequency (RF) signals, inspired on the mammals cochlea, with the basilar membrane mimicked by microstrip lines. A prototype is presented, operating from 840 MHz to 1470 MHz using ADCs working at 210 Msps. Simulation results revealed that it is possible to design a HFB with low values of distortion and aliasing. With this cochlear analog front-end it is possible to increase the bandwidth of the signal while keeping a high dynamic range. Further developments of this technology could fulfill the promise of Software-defined Radio to build a radio able to deal with wideband signals.
Keywords :
software radio; analog filter bank; cochlear radio; frequency 840 MHz to 1470 MHz; hybrid filter bank; radio-frequency signals; software-defined radio; Bandwidth; Biomembranes; Dynamic range; Filter bank; Microstrip components; Microstrip filters; Prototypes; RF signals; Radio frequency; Signal design; Analog Filter Bank; Analog to Digital converters; Bio-inspired systems; Cochlear Radio; Hybrid Filter Banks; Software-Defined Radio;
Conference_Titel :
RF Front-ends for Software Defined and Cognitive Radio Solutions (IMWS), 2010 IEEE International Microwave Workshop Series on
Conference_Location :
Aveiro
Print_ISBN :
978-1-4244-5751-9
DOI :
10.1109/IMWS.2010.5441014
