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amirhirschtoday at 6:10 PM3 repliesview on HN

Very cool! Six years ago I worked on a mmWave (76-81GHz) imaging radar with a Rotman lens Tx and Rx. Designed as a LiDAR replacement, but we could see pipes in walls, or detect concealed weapons at ~1km.


Replies

Melatonictoday at 8:27 PM

Super cool. Didn't even know mmWave was used for radar and imaging techniques!

Isnt mmWave pretty similar (in theory) to short-ish range wireless directional antennas? What people used to call point to point "microwave" transmission?

Crazy idea but could your mmWave radar hardware also be (not simultanouslyl) used to transmit data? No idea what a Rotman Lens is but I would imagine that maybe it could be useful for transmission as well.

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mlmonkeytoday at 6:41 PM

Do you have a writeup about the project? I'd love to read more about it.

GL26today at 6:15 PM

How many tx and rx antennas did you have ? (I don’t know if it was clear, my stack was 57-64 GHz, 2TX , 3RX)

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