公开(公告)号：US20170279185A1

公开(公告)日：2017-09-28

申请号：US15394713

申请日：2016-12-29

Applicant: MEDIATEK INC.

Inventor： Chung-Yu Hung ,  Chen-Fang Tai ,  Wun-Jian Lin ,  Shih-Huang Yeh

IPC: H01Q1/24 ,  H01Q3/24 ,  H01Q7/00 ,  H01Q1/22 ,  H01Q9/04

CPC classification number: H01Q1/245 ,  H01Q1/2266 ,  H01Q1/243 ,  H01Q3/24 ,  H01Q5/328 ,  H01Q7/00 ,  H01Q7/005 ,  H01Q9/04 ,  H01Q9/0442 ,  H01Q21/29

Abstract: An antenna with swappable and selective radiation direction includes a first arm, a second arm electrically connected to the first arm, a third arm is electrically connected to the first arm, a first impedance tuning circuit coupled to the second arm for connecting the second arm to a ground or a first matching component according to a control signal, and a second impedance tuning circuit coupled to the third arm for connecting the third arm to the ground or a second matching component according to the control signal. By tuning impedance of the antenna, the antenna operates in a first mode corresponding to a first radiation direction or a second mode corresponding to a second radiation direction.