A 31.2mW UWB Baseband Transceiver with All-Digital I/Q-Mismatch Calibration and Dynamic Sampling

A MB-OFDM UWB baseband transceiver with I/Q-mismatch (IQM) calibration and dynamic sampling (DS) is presented. It calibrates IQM by 2dB gain and 20 degree phase errors, releasing IQM tolerance to 10times of existing designs. The DS reduces ADC sampling rate to 1/9 ~ frac12 of existing designs, resulting in at least 43% ADC power saving. Measured power consumes 31.2mW at 480Mb/s data rate