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A 60 GHz phased array for $10

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Re: A 60 GHz phased array for $10

#101
Maybe silly question, Are there some other commercially available chips with phased arrays?

I believe RTL SDR did extend the RTL products end of life much further.

COuld this occur with this (or similar) phased array chips?

Re: A 60 GHz phased array for $10

#102
post #43

Earlier quoted context omitted.

https://www.spar3d.com/news/lidar/mits-10-lidar-chip-will-ch... holographic displays would use eye trackers to show each eye a different image. Solid state zoom is maybe a bit of a stretch, but it would involve pixels becoming sensitive to angles more inward or outward from the sensor's center.

I'm not an expert, but I believe that's not how holographic displays would work with optical phased arrays. I believe a phased array can make it seem that light is being emitted from any point above the display (within the display angle of the opposite side of the display). There's no need to track observers, because it would be an honest reconstruction of the light emitted from a real 3d dimensional object.

I believe that's correct - see http://www.phased-array.com/1996-Book-Chapter.html "Front projection Images" for details.

Re: A 60 GHz phased array for $10

#103

> What would be really cool is to build a USB board that plugs into one of the SB9210 boards and connects to gnuradio. You could do all kinds of neat radar experiments, presence detection, beam forming, you name it. Kind of like a 60 GHz RTL-SDR. Maybe a dumb question, but how is it even possible to do SDR with 60GHz signal on a ~4GHz CPU via a 5Gbps USB3 connection? EDIT: I guess via down-conversion? https://en.wiki…

For a concrete example, infrared (such as what's used for TV remotes) typically transmits data on a carrier frequency of 38Khz, but the actual data rate is much less, just a few hundred bits per second.

https://techdocs.altium.com/display/FPGA/NEC+Infrared+Transm...

Re: A 60 GHz phased array for $10

#104

Earlier quoted context omitted.

I don't understand. Your options are (1) be small, try to grow fast, (2) be big, (3) be small, don't try to grow fast, and I'm not sure what (4) means. What else is there?

What behavior would prevent a technology like ultra-cheap phased arrays from being locked up due to the corporation seeing some potential in either the technology or the team to buy them, but then not giving both the leeway to develop the market for the technology further? In this specific case I guess we don't know the full picture of what Lattice Semiconductor intends to do, but there are many examples in software…

Use-it-or-lose-it provisions for all acquired technology, by entities over a certain size?

If you are demonstrably developing a piece of technology, kudos. It's yours, you bought its owner.

If you are not doing anything with it, you're required to offer FRAND license terms to anyone interested in the technology.

Would at least make the tech available that's currently getting tossed in a corporate closet in the basement.

Re: A 60 GHz phased array for $10

#105
post #79
post #6

I love how industry came up with ever crazier schemes to stream content from phones and laptops to TVs. There must have been three different attempts involving WiFi alone, but this phased array mmWave 60 GHz million bucks basic research abomination surely takes the cake. Meanwhile, some Google engineer realized you could solve 90% of phone-to-TV streaming applications and 100% of the hard technical problems by just t…

You mean Apple. AirPlay was there years before google made a move in this area.

IPTV happened in the late 90's according to WP, you could stream to your STB equipped TV from the internet or from your laptop. But of course we started seeing direct Youtube->TV only after Google started working with smart-tv and STB companies.

Re: A 60 GHz phased array for $10

#106
post #79

Earlier quoted context omitted.

You mean Apple. AirPlay was there years before google made a move in this area.

If we're going to talk about who did it first, DLNA ( https://en.wikipedia.org/wiki/Digital_Living_Network_Allianc... ) came out in 2003 and had the concept of a "renderer". A renderer is a device that receives commands to go pull some media from somewhere and start playing it. And that can include video. So the concept has been around a long time.

Well, DLNA and IPTV were never a mobile phone feature, but the point was simply that Google did not invent it. Thanks for agreeing with me.

Re: A 60 GHz phased array for $10

#107
post #15

>Now the bad news: SiBeam was bought by Lattice Semiconductor, and right before I gave this talk, Lattice shut down the entire SiBeam organization and ended support and production of this part. I didn’t find out about this until months later, when I contacted the sales engineers I had been talking to about this part and they told me what happened. This is one thing that really pisses me off. Time and time again you'v…

Was that actually a major part of the value of the company? It probably would've been if the standard the part was intended for ever became widespread, but it may well be that running the production primarily for the occasional single-part purchaser simply wasn't profitable.

Re: A 60 GHz phased array for $10

#108
post #6

I love how industry came up with ever crazier schemes to stream content from phones and laptops to TVs. There must have been three different attempts involving WiFi alone, but this phased array mmWave 60 GHz million bucks basic research abomination surely takes the cake. Meanwhile, some Google engineer realized you could solve 90% of phone-to-TV streaming applications and 100% of the hard technical problems by just t…

I remember hearing about these around 2008 and then the application being pushed was no cables to your fancy flat screen TV. Blu-ray player uses UWB RF so no cables are necessary. I don't think anyone saw then the end of physical media and the rise of streaming on the horizon.

I also remember in 2008 hearing about how RFID would soon be ubiquitous on consumer products like UPCs and you could just load up a cart with groceries and walk out the door without scanning anything. That one may actually pan out, but it is much later than it was supposed to be.

Re: A 60 GHz phased array for $10

#109

Maybe silly question, Are there some other commercially available chips with phased arrays? I believe RTL SDR did extend the RTL products end of life much further. COuld this occur with this (or similar) phased array chips?

The closest thing i can find is this similar sounding 60ghz radar chip on digikey by Acconeer, but it doesn't look like you could control it or use it like the sibeam does...

https://www.digikey.com/product-detail/en/acconeer-ab/A111-0...

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