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Network Cellphones Communications Technology

Qualcomm Unveils First mmWave 5G Antennas For Smartphones (theverge.com) 45

Qualcomm announced its new QTM052 mmWave antenna modules that will enable 5G networks on select mobile phones. The penny-sized antenna array features four antennas that can accurately point toward the nearest 5G tower. It can even bounce signals off of surrounding surfaces, if needed. The Verge reports: The QTM052 is designed to be small enough that device manufacturers will be able to embed it into the bezel of a phone. Qualcomm's X50 5G modem is already designed to support up to four of the antenna arrays, one for each side of the phone, allowing for 16 total antennas and ensuring that no matter how you hold your phone, the signal won't get blocked. Qualcomm says that the first devices with the QTM052 antennas should be launching as early as the beginning of 2019 -- and hopefully, there'll be some actual 5G networks to use them with by then.
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Qualcomm Unveils First mmWave 5G Antennas For Smartphones

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  • I imagine you'll want to selectively enable this modem (it's separate from 4G) in next year's high-end phones; otherwise, it will kill battery life.

    • Has any consumer actually asked for 5G or is it just marketing?

      • by AvitarX ( 172628 )

        I have limited hope it may break the ISP monopoly, otherwise I'm fine with the few mbps I got on my phone pre 4g (and really see no need for the 50 I get now).

        Especially since I can't stream HD audio, and don't personally download large files on my phone.

  • by fuzzyfuzzyfungus ( 1223518 ) on Tuesday July 24, 2018 @07:58AM (#56999656) Journal
    I'm sort of surprised to see Qualcomm releasing a discrete part at this level of integration (rather than "here's an entire cell modem on module so you can 5G your widget with minimum regulatory hassle and without adding an RF witch doctor to your traffic light control company's team" or "here's the silicon and some design guide docs; engineering support for larger customers").

    Is there just more demand than I realize from people who are doing things too tightly integrated/space constrained for the full "lump of cell module" treatment(would be phone ODMs with limited RF experience, such that they buy antennas rather than integrate them as trace antennas or into phone body/structure?) or do the requirements of '5G' impose sufficiently new and stringent requirements that it's expected that relatively few will be able to so it in house, at least for the first generation or two?
    • I'm not sure how many small companies (ie "traffic light control company") would take advantage of this, but I would suspect that the target market is larger OEMs to help them get 5G prototypes together faster so they can evaluate it with their existing hardware architecture.

      I've been out of the cell phone business for a few years, but a step increase in bandwidth like this would put a lot of strain on the communications processor and hardware and handset companies would probably want to evaluate how they a

    • by burtosis ( 1124179 ) on Tuesday July 24, 2018 @09:38AM (#57000048)
      It's not so easy to make a phased array by using traces on the PCB. Modules like these make it easier to implement, which will help out the smaller companies the most. It's easier to switch to differently located arrays within the phone with these modules as well. You need something like this when you go run 26-47Ghz like these do as the signals are easily attenuated.

      One of my pet peeves about cell phone antenna design is form over function, with a larger and more sophisticated antenna the range can be enhanced significantly as you can increase the gain and area over which the signal is captured. Instead, as the signal to noise ratio dropped due to advancements on the radio side, manufacturers let the antennas atrophy and hid them wherever they could leading to designs where customers simply are "holding them wrong".
    • by MTEK ( 2826397 )

      This is a first-to-market stunt. Early adopters beware. It's going to need two or more iterations.

    • by Anonymous Coward

      buy antennas rather than integrate them as trace antennas or into phone body/structure?

      Couple reasons. This antenna is likely far more dense and complex than possible on a standard PCB. Custom dielectric materials play a role and with all those pins on the connectors, this is probably active in some way. Plus when you use your PCB for an antenna you can't use that space for anything else and the whole PCB needs to be the right dielectric for the antenna to work. A few other good reasons I'm sure plus all of the business reasons which are beyond the scope of this comment.

    • by tlhIngan ( 30335 )

      I'm sort of surprised to see Qualcomm releasing a discrete part at this level of integration (rather than "here's an entire cell modem on module so you can 5G your widget with minimum regulatory hassle and without adding an RF witch doctor to your traffic light control company's team" or "here's the silicon and some design guide docs; engineering support for larger customers").

      Qualcomm makes parts. They sell parts. They do not sell modules. You cannot go to Qualcomm and buy a complete cellular module.

      Instea

  • by pcjunky ( 517872 ) <walterp@cyberstreet.com> on Tuesday July 24, 2018 @08:11AM (#56999704) Homepage

    The spectrum they are using is very line of sight. Even a sheet of cardboard will significantly attenuate the signal. Trees and even tinted windows will 99% block these signals. These frequencies (like the 38GHz that Verizon bought Straight Path to get) have been used for point to point links very sparingly over the last few decades due to the extreme short range and rain fade problems that make it very difficult to use beyond 1/2 mile. A couple years ago Straight Path gave us two Cerigon FiberAir radios to use at 38GHz because no one in SW Florida was using 38GHz and the FCC was threatening to revoke their license. We were only only ones using the spectrum (they told us so) and even with trying to give away the radios (about $10k for the pair) they couldn't find anyone to use in in the counties just to the north of us. We used them for a 1000 foot (300 meter) link (we will still be operating this link until Sept when the license expires). This was with 1 foot dishes on each end. Rain fade does effect the link when the rain gets heavy, but due to the very short distance it still operates. I just can't see them using these frequencies on devices like cell phones to much effect. I predict this will be an epic fail.

    • by pcjunky ( 517872 )

      It should be noted these frequencies are much higher than of those used by satellite TV services like Directv (around 12GHz) that already have rain fade problems and suffer much more from rain fade.

    • As I understand it, the plan is to cut down all the trees and ban tinted windows.
    • These frequencies (like the 38GHz that Verizon bought Straight Path to get) have been used for point to point links very sparingly over the last few decades

      Decades?? No... not really; in fact not at all.

    • by Anonymous Coward

      The benefit of this technology if you're cynical, is to think of all the millions "access points" or micro cell towers that would be sold and installed to have a wide coverage.

      Beside some luxury Internet access or e.g. journalists and professionals uploading footage it seems useful for extremely crowded places. Line of sight is almost a feature i.e. you have cells in the expo booths area, a cell in each huge conference hall, a cell in the casino floor, a cell in the parliament/congress/national assembly, a

  • allowing for 16 total antennas and ensuring that no matter how you hold your phone, the signal won't get blocked.

    "Four antennas ought to be enough for anybody." -- Steve Jobs

  • If 5G needs millimeter-wave antennas, does that mean it would be possible to very accurately triangulate your 5G phones' position between towers?
    • by Agripa ( 139780 )

      If 5G needs millimeter-wave antennas, does that mean it would be possible to very accurately triangulate your 5G phones' position between towers?

      In theory it allows greater angular resolution for the same physical antenna size. In practice I doubt it would help.

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