NoLoRa: Ultra-Low-Power LoRa Tx Without Active Radios for Battery-Free Devices [pdf](pure.hw.ac.uk)
pure.hw.ac.uk
NoLoRa: Ultra-Low-Power LoRa Tx Without Active Radios for Battery-Free Devices [pdf]
https://pure.hw.ac.uk/ws/portalfiles/portal/166072930/EuCAP2026_template.pdf
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Are they just connecting the SPI bus directly to the antenna? Did I miss the part where they describe their bandpass filtering?