Patent ID: 8059056

Claim:
A directional antenna positioned at a substrate, comprising: at least one L-shaped radiator, extending along and adjacent with an edge of the substrate, and at least one terminal of the L-shaped radiator fixedly positioned with the substrate; at least one L-shaped oscillator, extending along and adjacent with the L-shaped radiator, and at least one end of the L-shaped oscillator fixedly positioned with the substrate; and at least one L-shaped reflector, fixedly positioned with the substrate and adjacent with and extending along the L-shaped radiator, wherein the at least one L-shaped reflector is positioned near an inner side of the projection of an upper surface and lower surface of the substrate with respect to the L-shaped radiator and the L-shaped oscillator; and a dielectric layer mounted on the substrate; the L-shaped radiator and the L-shaped oscillator flatly attached on an outer surface of the dielectric layer, and the L-shaped reflector flatly attached on an inner surface of the dielectric layer, such that the L-shaped radiator, the L-shaped oscillator, the L-shaped reflector, and the dielectric layer cooperatively form an L-shaped, wall-like subassembly with substantially flat outer surfaces.