Patent ID: 8368614
Filing Date: 2013-02-05
Classification: H01Q

Abstract:
1. An antenna apparatus comprising: a ground plane; a plurality of conductive elements arranged substantially in parallel to a surface of the ground plane; a plurality of linear elements configured to connect the conductive elements to the ground plane; and an antenna configured to radiate a radio wave, wherein a first plurality of openings to reflect the radio wave radiated from the antenna are formed in the ground plane under an arrangement region of the conductive elements, a second plurality of openings to further reflect the radio wave reflected on the ground plane toward the ground plane are formed in the conductive elements, the second openings in the conductive elements are belt-shaped openings, the belt-shaped openings in the conductive elements are parallel to a first direction which is one of a longitudinal direction and a lateral direction and arranged at a predetermined interval in a second direction which is the other of the longitudinal direction and the lateral direction; and a length direction of the antenna is coincident with the first direction.