PBG-ASSISTED SHARED-APERTURE DUAL-BAND APERTURE-COUPLED PATCH ANTENNA FOR SATELLITE COMMUNICATION

摘要

Design and development of a photonic bandgap (PBG)-assisted shared-aperture dual-band orthogonal aperture-fed rectangular microstrip patch antenna element, which is suitable for a portable very small aperture terminal (VSAT), are presented in this paper: The dual-band dual-polarized antenna element achieves 21 % input impedance bandwidth at the S- and C-bands A comparison of the antenna with and without 2D PEG grids shows that the inclusion of PEG structures (PBGSs) improves the antenna performances.