CC8520: Extreme low range CC8520+CC2590 +-(1m)

Part Number:CC8520

Hello,I have a problem with copyring TI wireless headset desing .

I tryed make this desing with two layers  PCB and size of most components 0603.

I am using the inverted F PCB antenna - redrawed from TI domucents -all dimesions OK.

All works well,pairing ,power supply, but range is extremently low (-+1m)

Do you have some ideas how to fix it ? Anp could someone check mistakes on PCB desing (desinged in Eagle - look to the attachment)

Thanks for your help.

Best Regards 

Peter(Please visit the site to view this file)(Please visit the site to view this file)