I would like to have some informations about superstrate materials that can be used to improve the gain of patch antennas... where can I find some infos ? Can I have some advices ?? Thomas K.
etc. for more info
Also, Reference:
"Cavity-Backed Antennas with PBG-Like Substrate or Superstrate materials," L. Zhang, H. Contopanagos, N.G. Alexopoulos and E. Yablonovitch, 1998 IEEE APS-S Int. Symp. Digest, June 21-26, 1998, Atlanta, GA, Vol.1, p.186.