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A 2.4 GHz 365nW wake-up receiver (WuRX) with RF envelope detection using rectifier-antenna co-design for passive voltage gain and RF filtering is presented. The RF frequency-tunable WuRX uses a programmable 32-bit OOK wake-up signature, achieving sensitivity of −61.5dBm for 2.5 kb/s without any off-chip matching components between IC and antenna. RF filtering in the high-Q rectifier-antenna interface...
Recent demand for multifunctional wireless devices has increased the challenge for the antenna designers, who has to address it by providing small antennas able to operate in multiple communication standards. This paper proposes a new generation of radiating systems capable of providing multi-band operation without the need of including a dedicated antenna. The solution is based on the excitation...
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