Discrete-Time Approach to Push High-Performance in WLAN Receivers
Discrete-time receivers (DT-RX) were introduced into wireless communications products by Texas Instruments well over a decade ago. They were originally limited to narrowband cellular and personal connectivity receivers and had helped with setting precise transfer function without any need for calibration. Lots of research has been done since then in industry and academia to push their applicability to wide modulation bandwidths, such as 4G cellular and wireless connectivity. Not only their transfer functions got sharper but a whole new paradigm of superheterodyne bandpass filtering got exploited. This talk discusses such recent advancements.