An Area-Efficient NBA-MMS UWB Receiver with Capacitance Boosting and PVT-Robust RSSI for IEEE 802.15.4ab

A reconfigurable UWB receiver supporting the IEEE 802.15.4ab narrowband-assisted multi-millisecond (NBA-MMS) ranging scheme is presented. To minimize the area overhead of NB support, a current-amplification-based capacitance-boosting (CBST) technique is proposed, achieving 49% baseband area reduction with only 0.025 mm² for both I and Q paths. In addition, a PVT-robust RSSI based on a mismatch-cancellation amplifier (MCA) enables reliable NB-to-UWB gain setting, achieving ± 0.5 dB nominal accuracy and within ± 1.9 dB across PVT variations. The receiver supports both NB and UWB operation while consuming 78.3 mW and occupying 0.52 mm².