An 802.15.4ab Narrowband Assistance RX Resilient to −32dBm Blocker at 3.2dB NF with High Dynamic Range TIA and Clip Detector

Encouraged by the proliferation of the 802.15.4a/z IR-UWB standard, the next generation, the 802.15.4ab, aims to extend the ranging distance by including a provision for narrowband radio assistance. Such a narrowband RX needs to achieve ~3dB NF while co-existing with WiFi blockers. We propose a 2nd-order TIA and a high dynamic range clip detector for the narrowband RX, achieving 8dB higher dynamic range than the state-of-the-art at a comparable NF and 2.5x the RF operating frequency. RX realized on a 22nm CMOS node consumes <6mW.