Dear Halgurd

Please tell some important information.

1. Which material is used?

2. In which frequency range, your antenna is operating.

Dear Ashok

1. the two common materials are used FR4 and RTDruid .

2. the frequency range generally is 1 to 10 GHz .

thank you very much .

Refer this: http://www.edaboard.com/showthread.php?t=114595

Thank you very much dear Pranita Hetwade