ANTENNA SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an antenna system for enhancing the gain of an antenna element without using an array technology. SOLUTION: The antenna system 10A comprises: an EBG board 12; a curl antenna 21 supported in the middle of the EBG board; and a periodic structure upper board 30 arranged apart from a principal side of the EBG board by a prescribed distance H. The EBG board 12 includes a board 122 with a principal side; and (Nx×Ny) square patches 124 printed on the principal side of the board and arranged in a matrix form (lattice structure). The periodic structure upper board 30 includes: a film; and (Nx×Ny) square patch conductors (34) printed on the film. The (Nx×Ny) square patch conductors (34) are arranged respectively opposite to the (Nx×Ny) square patches 124. COPYRIGHT: (C)2007,JPO&INPIT