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This paper presents a very promising architecture that is suited for a Full Software Radio (FSR) transmitter. The core system is made of two blocks: one generates a set of square sequences and is named Walsh Sequences Synthesizer, while the other, the Walsh digital-to-analog converter (DAC), performs the conversion, by summing and dynamically weighing the sequences with a reduced set of coefficients...
This paper presents the design and measurement of a 4 oversampled 18th order digital low-pass FIR filter. It is a key building block in the proposed digitally enhanced transmitter architecture for 60 GHz wireless high-data rate links. Spectrum mask requirements are fully satisfied for OFDM modulated signals without requiring additional analog filtering. Pipelined CPL adders and TSPC flip-flops...
Deep sub-micron CMOS technologies have enabled the development of highly digital radios for wireless communications at low Gigahertz frequencies [1], [2]. 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...
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