electromagnetic band gap

Hi

how we can determine the size of EBG?
what are the rules of the design of the EBG?
how we can design an EBG for 869 MHZ?

help please

many thanks

have you bothered to do any google searching?
putting your topic title into google comes up with dozens and dozens of hits for the subject

here's just one example ..... http://www.radioeng.cz/fulltexts/201..._0414_0421.pdf

DAve

Yes I did it
but till know I didn't find a doc that explain how we design it ((for biginners................:)