PLANAR TYPE WIDEBAND ANTENNA

摘要

PURPOSE: A flat type broadband antenna is provided to minimize flat type broadband antenna by the formation of a two-dimensional flat structure. CONSTITUTION: A radiation element(300) is formed by combining a print type folded monopole antenna element and a reverse L-shaped parasitic element. The flat type broadband antenna comprises a substrate(100) having predetermined dielectric constant, a ground plane(200) formed at the bottom of the substrate, and a radiation element. The radiation element is connected to the coaxial cable of the ground plane. The size of the ground plane is 120(0.9λ) mm × 40(0.3λ) mm. The size of the radiation element is 13.75(0.11λ) mm × 12(0.9λ) mm. The front ground plane and the back ground plane are electrically short circuited through a via formed on the outer surface of the ground plane.