Patent ID: 9196968
Filing Date: 2015-11-24
Classification: H01Q

Abstract:
1. An antenna device adapted for being applied to a wireless communication product for receiving and sending high-frequency electromagnetic wave signals, comprising: a first dielectric substrate made of a high dielectric coefficient material; a plurality of first contact pads fastened on a periphery of a top surface of the first dielectric substrate and spaced at regular intervals; a plurality of second dielectric substrates made of the high dielectric coefficient material, the plurality of second dielectric substrates being fastened on the first dielectric substrate at regular intervals and located in inside positions of the plurality of first contact pads; and a plurality of Yagi-Uda antennae respectively disposed on top surfaces of the plurality of second dielectric substrates in different radiation directions to radiate outward, each of the plurality of Yagi-Uda antennae having a drive for receiving and sending the high-frequency electromagnetic wave signals, and a plurality of directors disposed in an outside position of the drive and spaced from an outer side of the drive for pulling the high-frequency electromagnetic wave signals to radiate towards the director so as to improve a gain of the Yagi-Uda antenna, the plurality of directors being shorter than the drive, and the plurality of directors being arranged along a direction of being gradually away from the drive and gradually becoming shorter, an inner side of the drive away from the plurality of directors defining a signal feed point for feeding the high-frequency electromagnetic wave signals; wherein the plurality of directors include a first director disposed away from the outer side of the drive and shorter than the drive, and a second director disposed away from an outer side of the first director and shorter than the first director; wherein the drive has an elongated base portion, and the base portion has two opposite long edges which are respectively defined as a first edge and a second edge, an outer side of the first edge of the base portion, adjacent to the first director extends horizontally and perpendicular to the base portion to form a first extending portion, the second edge of the base portion extends opposite to the first extending portion and then meanders towards the first director and the second director to form a second extending portion, the inner side of the base portion away from the first director and the second director of the plurality of directors defines the signal feed point.