May 17, 2011 #1 M mano_apt Junior Member level 1 Joined May 25, 2009 Messages 18 Helped 2 Reputation 4 Reaction score 2 Trophy points 1,283 Activity points 1,356 hello, chip impedance : 22-195j substrat: polyester (PET) : h=50 um antenna: aliminum: h1=9 um