\Area Efficient Reconfigurable Fast Filter Bank for Multi- Standard Wireless Receivers

This brief presents a reconfigurable fast filter bank (RFFB) with less gate counts for wireless communication applications such as spectrum sensing and channelization. RFFB offers fine control over subband bandwidth without any reimplementation. This is accomplished with an improved modified frequency transformation-based variable digital filter (MFTVDF) at the first stage of the multistage implementation that offers unabridged control over the cutoff frequency on a wide frequency range thereby improving the cutoff frequency range which inturn results in fine control over subband bandwidth . RFFB offers less gate counts among other filter banks. KEYWORDS— Fast filter bank (FFB), Transition bandwidth (TBW), variable digital filter (VDF).