Tu4J: Transceiver Architectures for Ultra-Low Power IoT

Abstract
This session explores the latest advances in transceivers for the Internet of Things, focusing on ultra-low power consumption and architectural innovation. The session begins with a 2.4-GHz, low-latency wake-up receiver featuring a high-efficiency, VCO-based digital demodulator. The discussion then moves to extreme energy constraints, introducing a battery-less, crystal-less, event-driven UWB tag architecture that consumes less than 100 nW. A spectral- and energy-efficient tag for BPSK WiFi backscatter systems is then presented, integrating a novel sidelobe-rejection technique. The session concludes with a compact, highly efficient, BLE-compliant wireless transmitter optimized for the next generation of low-power wearable applications.