Feed line for PIFA antenna

[bradly]

I'm looking for information concerning the technique of feed line for PIFA antenna. How can i replace the coaxial cable with the connector SMA by another system?

 

[jbartos]

Suggestion: Check with

http://www.ansoft.com/thewave/New_Integrated_smart_antenna_analysis.pdf

http://www.centurion.com/pdf/mob-internal.pdf

etc. since there are various versions of PIFA antennae.