Design of 10 GHz sampling rate digital FIR filters with powers-of-two coefficients

Deep sub-micron CMOS technologies have enabled the development of highly digital radios for wireless communications at low Gigahertz frequencies. Meanwhile, nanometer scale CMOS allows to push the RF frequencies to the millimeter wave frequency range. Particularly 60GHz radio has emerged as the candidate for high-data-rate (10 Gb/sec), short-distance (1 to 10m) wireless communication systems. Radio channels are 2GHz wide, triggering new challenges for the digital circuit designers with sampling frequencies in the GHz range. This paper presents an algorithm implemented for the design of low power and very high-speed finite impulse response (FIR) digital filters. FIR filters are a commonly used block for digital signal processing but also widespread in wireless communication in digital radio transmitter.