Here is the problem: To get a “view” you have to have a very large array of antennas or you have to scan the scene line a near field range. So the goggles would have to have apertures like 10 feet in diameter or more or a mechanism to scan the antenna over that area at 5 GHz to get any kind of decent resolution in the view. At THz it is practical but not much at the lower frequencies.
I have seen an image of a bicycle in an anechoic chamber created by a nearfield system at 10 GHz but it took lots of scanning and processing. And if you squinted your eyes just right it kinda looked like a bike. From: Adam Moffett Sent: Friday, November 8, 2019 9:15 AM To: af@af.afmug.com Subject: Re: [AFMUG] RF Goggles In all seriousness: Think of those 3D video viewers that are just goggles holding your smart phone. Add an array of 5ghz antenna with similar beamwidth to eyeballs (about 30 degrees), some kind of DSP module connecting to the antennas, and the DSP module to the smartphone with USB-C. Add a lot of fancy software and you've got RF goggles. The view in the goggles comes from the smartphone camera with received signal expressed as heat colors overlayed on the video. I don't mean to say it would be easy, but it seems attainable. In real life would it be more useful than a spectrum analyzer, or just cool to look at? On 11/5/2019 10:47 PM, Ken Hohhof wrote: Still not a thing? -------------------------------------------------------------------------------- -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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