Post #2901902

Because of how wide and thin it is, it looks like a phased antenna array to me. It's a way to create cheaper, performant antennas. You see this form factor with a bunch of RF applications in UHF to EHF range. Here's an example of a random mmWave radar board. Imagine a plastic case over this to keep out dust and rain.  https://www.alibaba.com/product-detail/60Ghz-long-distance-Millimeter-wave-radar_1601046927371.html