公开(公告)号：US10608604B2

公开(公告)日：2020-03-31

申请号：US16504359

申请日：2019-07-08

Applicant: MEDIATEK INC.

Inventor： Chao-Liang Wu ,  Chung-Yu Hung

IPC: H03F3/24 ,  H04B1/40

Abstract: A wireless communications circuit and an associated wireless communications device are provided. The wireless communications circuit may include a power amplifier with integrated filter (PAMiF) module and a two-stage switch module, and the two-stage switch module may include a first switch and a second switch. For example, a first port of the first switch is coupled to a filter port of the PAMiF module, and a second port of the first switch at an opposite side to the first port of the first switch is coupled to a first antenna. In addition, a first port of the second switch is coupled to a third port of the first switch at the opposite side to the first port of the first switch, and a second port of the second switch is coupled to a second antenna.

公开(公告)号：US20180090836A1

公开(公告)日：2018-03-29

申请号：US15620817

申请日：2017-06-12

Applicant: MEDIATEK INC.

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

IPC: H01Q3/16 ,  H01Q1/24

CPC classification number: H01Q3/16 ,  H01Q1/243 ,  H01Q1/245 ,  H01Q1/48 ,  H01Q3/24 ,  H01Q5/335

Abstract: An interface module for a communication device includes a first switch, for forming a first connection between a first feeding point of an antenna of the communication device and one of a first matching component and a first grounding component; a second switch, for forming a second connection between a second feeding point of the antenna and one of a second matching component and a second grounding component; and a third switch, for forming a third connection between a transceiver and one of the first matching component and the first grounding component.

公开(公告)号：US09728852B2

公开(公告)日：2017-08-08

申请号：US14447676

申请日：2014-07-31

Applicant: MEDIATEK Inc.

Inventor： Chung-Yu Hung

IPC: H03H7/38 ,  H01Q5/335 ,  H01Q9/42

CPC classification number: H01Q5/335 ,  H01Q9/42 ,  H03H7/38

Abstract: A matching circuit for an antenna of whatever type, includes a ground circuit and a feed circuit. The ground circuit connects a ground terminal of the antenna to a ground voltage, and provides an inductive impedance between the ground terminal and the ground voltage. The feed circuit connects a feed signal to a feed terminal of the antenna. The feed circuit is capable of switching between a first mode and a second mode for respectively providing a first equivalent impedance and a second equivalent impedance between the feed signal and the feed terminal. An associated method is also disclosed.