Antenna patch. How can I made the feed network for array?

[primaguardia]

Antenna patch

I've just simulated and realized a patch antenna single element with CST. (I used: patch, transformer lambda/4, feedline 50ohm)
Now I would generate an array of patch for 2.4Ghz. How can I made the feed network for array?

 

[acrislg]

Re: Antenna patch

In this paper you can find some explanations about how to make the feeding network.

 

[primaguardia]

Re: Antenna patch

oh...thanks for your help...I've just seen this pdf, but I can't understand how can I calculate lenght and width of feed when I made an array.
I've also read this:

**broken link removed**

and I try to find how is possible to calculate lenght of transformer (13 mm?!?) at page 34 with TxTline