connectors for antenna

Discussion in 'Wireless & RF Design' started by aac9876, Apr 10, 2007.

  1. aac9876

    Thread Starter Active Member

    Dec 9, 2006
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    for a 2.4g radio circuit...... i need to connect a usb maleA to a sma
    connector. its for putting a small amp inline to boost signal.
    can you get such a connector??:confused:
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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    282
    It would be called an adapter. Don't find any in my catalogs.
     
  3. Papabravo

    Expert

    Feb 24, 2006
    10,136
    1,786
    I seriously doubt it since USB and SMA have entirely different purposes. If you still think it's a great idea, you could probably have a model shop make one for you. Who knows it might catch on and you could become the Tsar of Connectors.
     
  4. mrmeval

    Distinguished Member

    Jun 30, 2006
    833
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    Tell us exacly what the device is you have and what you want to do with it.
     
  5. aac9876

    Thread Starter Active Member

    Dec 9, 2006
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    it is a usb powered yagi antenna called a wifire. Often there are weak signals open but could use a bit more power to pick them up.
    I have a 1 watt 2.4g amp. the ends of it are little sma. I would need
    to connect a male usbA end to the sma on one side. Then I would connect
    the other end sma ,amp,to the usbA female on the yagi. the yagi is about 3 inches long. thats the story. I emailed the maker to see what they think.
    its a really good little antenna that picks up about twice as many signals as my built in wifi on my Toshiba. I might make one. and will probably be
    rich and famous at that point.:eek:
     
  6. Papabravo

    Expert

    Feb 24, 2006
    10,136
    1,786
    That's the spirit. I think it may be a good idea. Now you just have to locate a fabricator to do it for you.
     
  7. kender

    Senior Member

    Jan 17, 2007
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    0
    A little block diagram could help a lot here. I couldn't find the datasheet for wifire either. Could you post a link please?

    Do you want to pump 2.4GHz through a USB cable? If so, it's not going to work, because the USB cable is not made for RF. To begin with, it doesn't have 50ohm inmpedance. If you post a block diagram, I can find the right cable for you.
     
  8. Tube Tech

    Active Member

    Jan 11, 2007
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  9. beenthere

    Retired Moderator

    Apr 20, 2004
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    282
    Ok. The Wifire adaptor takes the USB data and uses it to modulate the 2.4 GHz carrier. There is circuitry inside to accomplish this. You can't push USB data over an antenna as is.
     
  10. aac9876

    Thread Starter Active Member

    Dec 9, 2006
    124
    0
    understood:(
     
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