公开(公告)号：US20240405423A1

公开(公告)日：2024-12-05

申请号：US18526108

申请日：2023-12-01

Applicant: ASUSTeK COMPUTER INC.

Inventor： Jo-Fan CHANG ,  Yu CHEN

IPC: H01Q3/24 ,  H01Q1/22 ,  H01Q9/04

Abstract: A directional antenna device and an external antenna thereof are provided. The directional antenna device includes a dielectric substrate, an antenna body, a first metal element, and a second metal element. The antenna body is located on the dielectric substrate. The first metal element is located on the dielectric substrate and on one side of the antenna body. The first metal element is in a direction opposite to a radiation direction and has a first length. The second metal element is located on the dielectric substrate and on an other side of the antenna body. The second metal element is in the same direction as the radiation direction and has a second length, and the second length is less than the first length. The first metal element and the second metal element with different lengths are used to adjust the radiation direction of the antenna as a directional antenna.