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WiFi antenna — Parallax Forums

WiFi antenna

BigFootBigFoot Posts: 259
edited 2011-04-14 18:07 in Propeller 1
Have any of you guys had any experience with small stick on WiFi antennas.
We are working on an Ip Pad and don't want to mount an external antenna.

Comments

  • JRetSapDoogJRetSapDoog Posts: 954
    edited 2011-04-12 19:50
    Just curious, what's an "Ip Pad"? Assuming that's not a typo, my admittedly quick search only turned up an NEC board, and I'm doubtful that it is what you mean (initially, I thought you meant an iPad knockoff).

    Whatever it is, don't forget your primary job here on the forum: politely and patiently but persistently prodding Parallax (the 5 P's) for their next chip, as you have convincing clout from not only a significant number of shipped PoS products using the current chip but a clear need for the next generation chip in a follow-on design.

    Anyway, apologies for my non-informative reply (though the clarification request and/or bump might help), but good luck incorporating that WiFi antenna. By the way, what is the shape of those stick-on antennas?
  • BigFootBigFoot Posts: 259
    edited 2011-04-13 18:09
    A PAD is a Personal Access Device, they are used in school cafeterias to identify the kids. Ours has a keypad, bar code
    reader and a biometric finger scanner as well as a LCD display. All of our products are Propeller powered and we want to
    build a battery powered PAD device that uses WiFi or Ethernet (Ip) with PoE for communication.

    Most schools have Ethernet or WiFi but we don't want to have an external antenna, kids are pretty tough on our products
    and it would be to easy for the antenna to get broken.

    Sooo, do you know anything about stick on patch antennas ? They are usually rectangular in size and have a shot cable
    with a miniature connector.
  • JRetSapDoogJRetSapDoog Posts: 954
    edited 2011-04-14 07:12
    No, I've got nothing. I appreciate the explanation, though. I was looking in the sample chapter(s) of the book below, but only learned to keep the cable short (to avoid signal loss). And a guy has some videos at the second link, but they are for 900 MHz stuff and 2.4 GHz video transmission.

    1. http://www.wifi-toys.com/mo-wifitoys-chapter01.pdf
    2. http://wn.com/patch_antenna
  • BigFootBigFoot Posts: 259
    edited 2011-04-14 18:07
    Thanks for the links, that second one is way over my understanding of Rf magic.

    We are using the Lantronix Match Port B/G in all of our Ip designs. It is in expensive ($50)
    does both Ethernet and WiFi and will bridge between the two.
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