Examples about patch antenna for H7SS9.0

I introduce you some example about Planar antenna .
One of my friend named KMPA uploaded a .ppt file with Sinuous antenna, Design and Simulation title in the "RF, Microwave, Antenna and Optics" Fourm in response to my request. you can download that file.

anyone have iee paper about corner truncated CP single feed antenna? i need it for gps frequency L1
upload it!