CMOS Bit-Stream Band-Pass Beamforming
نویسندگان
چکیده
We introduce a unique bandpass ΣΔ based common module with reconfigurable, bit-stream based digital beam-forming (DBF). An array of bandpass ΣΔ modulators accurately and efficiently digitizes the IF signals. Beam-forming is implemented directly through bitsteam processing of the fast, low-resolution bit-stream outputs of the quantizers of each bandpass ΣΔ modulator. Fabricated in 65nm CMOS, the prototype DBF generates two beams from eight input elements. The prototype is the first IC implementation of IF DBF, occupies 0.28mm, and consumes 124mW.
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