[dorkbotdc-blabber] Re: Making your own antenna

[Andrew Q Righter]

Thanks guys, learned a lot! Going to attempt an antenna for that IC
this weekend :)

Ill let you know how it turns out.



On 10/6/08, Thomas Edwards <tedwards at gmail.com> wrote:
> I'd suggest you follow the design instructions for the specific RFID
> reader - the antenna may need to match internal impedance in the chip.
>
> For example, the Son-Micro antennas appear to need to be 860uH and 12 or 13
> Ohm:
> http://www.sonmicro.com/125n/antenna.php
>
> Impedance mismatch can reduce the efficiency of the
> antenna/transceiver combination:
> http://en.wikipedia.org/wiki/Impedance_matching
>
> -Thomas
>
> On Mon, Oct 6, 2008 at 1:48 PM, Andrew Q Righter
> <andrew at i11industries.com> wrote:
>> Howdy,
>>
>>      Does anyone have any experience / info they can shoot over to me
>> about
>> building your own antenna? I have an RF circuit I built using a Son-Micro
>> SM125IC and it basically just requires power and an antenna, I need to
>> make
>> an antenna with a FR of 125KHz.
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Andrew Q Righter

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