how to homemade gsm antenna
Hi techie,
I don't actually 'have' the PDF anymore (searched through my 4GB archive :/) but I think I've found a very similar one, that refer to microwave as opposed to specifically GSM. The design constraints are similar anyway.
**broken link removed**
You also might want to look here (for WiFI homemade antenna). It has details of a 'pigtail' something I think you may need.
**broken link removed**
You 'may' need a MCX -> N-type connector. I've seen a few of these around, see if you can find a place that doesn't charge the earth for something thats probably only worth a can of coke :/
Sorry I couldn't be more use, but my only experinece of UHF (900-2400MHz) design was when I built a 2MB radio link, Using the app notes from microlinear.
If you ask me, a lot of people seem to think that antenna/PCB design for GSM is a 'black art' but the losses in replacing the connector wil be minimal, as long as you match impedence. Try and find the datasheet for your GSM module, it might recommend some antenna designs, and tell you the impedence of the connector.
Good Luck
BuriedCode (listening to 'Panopticon - Isis')