Take a look at this antenna:
http://www.olimex.com/dev/images/AVR/AVR-GSM-BOT.jpg
from this module:
http://www.olimex.com/dev/avr-gsm.html
Do you guys know how can I build one of them? Or I was just think on “copy” that exact one… meassuring it from the picture and everything else… but if I can biuld it it would be better…
Thanks!!!
I’ve been researching and that type of antenna is a YAGI ANTENNA, an helical one.
http://en.wikipedia.org/wiki/Yagi-Uda_antenna
Does any of you know how to calculate it?
As always thanks in advance!
It’s neither a Yagi or a helical antenna, they will only work on a single band and are constructed differently. It looks most like a tapered meander antenna.
Leon
