公开(公告)号：US20240322796A1

公开(公告)日：2024-09-26

申请号：US18611265

申请日：2024-03-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Quan Zhou ,  Jinhan Fan

IPC: H03H11/28 ,  H03F1/56 ,  H03F3/19

CPC classification number: H03H11/28 ,  H03F1/565 ,  H03F3/19 ,  H03F2200/222 ,  H03F2200/294 ,  H03F2200/451

Abstract: An input matching circuit and a related apparatus are provided. The input matching circuit includes an inductive branch, a first resistor, and a field-effect transistor, the inductive branch includes one or more inductors and a second resistor, a first end of the first resistor is connected to a signal input end, and a second end of the first resistor is grounded. The signal input end is configured to provide a signal input for the input matching circuit, an input end of the inductive branch is connected to the signal input end, and an output end of the inductive branch is grounded. An inductance value of an equivalent inductor of the inductive branch between the signal input end and the ground varies with adjustment of a frequency of a signal input by the signal input end.

公开(公告)号：US10090834B2

公开(公告)日：2018-10-02

申请号：US15927570

申请日：2018-03-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinger Yang ,  Yusong Chi ,  Jinhan Fan

IPC: H03K17/687 ,  H04B1/48 ,  H03K17/693 ,  H03K17/14 ,  H03K17/10

Abstract: A radio frequency antenna switch includes an antenna port, a radio frequency signal port, and at least one branch connected to the antenna port or the radio frequency signal port, where each branch includes multiple transistors which are connected in a stacked manner. Each transistor in the multiple transistors has a multi-finger structure, comprising at least one first finger used as a source and at least one second finger used as a drain. Each first finger is connected, using multiple first vias, to a source corresponding to the first finger, and each second finger is connected, using multiple second vias, to a drain corresponding to the second finger. The number of the first vias and the number of the second vias of a preset number of transistors in the multiple transistors progressively decrease in a direction away from the antenna port.

公开(公告)号：US09503081B2

公开(公告)日：2016-11-22

申请号：US14641764

申请日：2015-03-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinger Yang ,  Yusong Chi ,  Jinhan Fan

IPC: H04B1/46 ,  H03K17/693 ,  H03K17/10 ,  H03K17/14

CPC classification number: H03K17/6871 ,  H03K17/102 ,  H03K17/145 ,  H03K17/693 ,  H04B1/48

Abstract: A radio frequency antenna switch is provided that includes an antenna port, a radio frequency signal port, and at least one branch connected to the antenna port or the radio frequency signal port, where each branch includes multiple transistors which are connected in a stack manner; channel width to length ratios of a preset number of transistors in the multiple transistors progressively decrease in a direction away from the antenna port, where the preset number is less than or equal to the total number of the multiple transistors. With the radio frequency antenna switch, capacitances of the preset number of transistors close to the antenna port increase, and distributed voltages that these transistors close to an antenna end in an off state need to bear are reduced.

Abstract translation: 提供一种射频天线开关，其包括天线端口，射频信号端口和连接到天线端口或射频信号端口的至少一个分支，其中每个分支包括以堆叠方式连接的多个晶体管; 多个晶体管中的预设数量的晶体管的沟道宽度与长度的比例在远离天线端口的方向上逐渐减小，其中预设数量小于或等于多个晶体管的总数。 利用射频天线开关，靠近天线端口的预设数量的晶体管的电容增加，并且这些晶体管接近天线端部处于断开状态的分布电压需要承受。

公开(公告)号：US09960765B2

公开(公告)日：2018-05-01

申请号：US15296451

申请日：2016-10-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinger Yang ,  Yusong Chi ,  Jinhan Fan

IPC: H03K17/687 ,  H03K17/10 ,  H03K17/14 ,  H03K17/693 ,  H04B1/48

CPC classification number: H03K17/6871 ,  H03K17/102 ,  H03K17/145 ,  H03K17/693 ,  H04B1/48

Abstract: A radio frequency antenna switch includes an antenna port, a radio frequency signal port, and at least one branch connected to the antenna port or the radio frequency signal port, where each branch includes multiple transistors which are connected in a stack manner; channel width to length ratios of a preset number of transistors in the multiple transistors progressively decrease in a direction away from the antenna port, where the preset number is less than or equal to the total number of the multiple transistors. With the radio frequency antenna switch, capacitances of the preset number of transistors close to the antenna port increase, and distributed voltages that these transistors close to an antenna end in an off state need to bear are reduced.

公开(公告)号：US20150303982A1

公开(公告)日：2015-10-22

申请号：US14641764

申请日：2015-03-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinger Yang ,  Yusong Chi ,  Jinhan Fan

IPC: H04B1/48

CPC classification number: H03K17/6871 ,  H03K17/102 ,  H03K17/145 ,  H03K17/693 ,  H04B1/48

Abstract: A radio frequency antenna switch is provided that includes an antenna port, a radio frequency signal port, and at least one branch connected to the antenna port or the radio frequency signal port, where each branch includes multiple transistors which are connected in a stack manner; channel width to length ratios of a preset number of transistors in the multiple transistors progressively decrease in a direction away from the antenna port, where the preset number is less than or equal to the total number of the multiple transistors. With the radio frequency antenna switch, capacitances of the preset number of transistors close to the antenna port increase, and distributed voltages that these transistors close to an antenna end in an off state need to bear are reduced.

Abstract translation: 提供一种射频天线开关，其包括天线端口，射频信号端口和连接到天线端口或射频信号端口的至少一个分支，其中每个分支包括以堆叠方式连接的多个晶体管; 多个晶体管中的预设数量的晶体管的沟道宽度与长度的比例在远离天线端口的方向上逐渐减小，其中预设数目小于或等于多个晶体管的总数。 利用射频天线开关，靠近天线端口的预设数量的晶体管的电容增加，并且这些晶体管接近天线端部处于断开状态的分布电压需要承受。

公开(公告)号：US20180358963A1

公开(公告)日：2018-12-13

申请号：US16106770

申请日：2018-08-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinger Yang ,  Yusong Chi ,  Jinhan Fan

IPC: H03K17/687 ,  H04B1/48 ,  H03K17/10 ,  H03K17/14 ,  H03K17/693

CPC classification number: H03K17/6871 ,  H03K17/102 ,  H03K17/145 ,  H03K17/693 ,  H04B1/48

Abstract: A radio frequency antenna switch includes an antenna port, a radio frequency signal port, and at least one branch coupled to the antenna port or the radio frequency signal port, where each branch includes multiple transistors which are coupled in a stack manner, channel width to length ratios of a preset number of transistors in the transistors progressively decrease in a direction away from the antenna port, where the preset number is less than or equal to the total number of the transistors. With the radio frequency antenna switch, capacitances of the preset number of transistors close to the antenna port increase, and distributed voltages that these transistors close to an antenna end in an off state need to bear are reduced.

公开(公告)号：US20180212601A1

公开(公告)日：2018-07-26

申请号：US15927570

申请日：2018-03-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinger Yang ,  Yusong Chi ,  Jinhan Fan

IPC: H03K17/687 ,  H04B1/48 ,  H03K17/10 ,  H03K17/14 ,  H03K17/693

CPC classification number: H03K17/6871 ,  H03K17/102 ,  H03K17/145 ,  H03K17/693 ,  H04B1/48

Abstract: A radio frequency antenna switch includes an antenna port, a radio frequency signal port, and at least one branch connected to the antenna port or the radio frequency signal port, where each branch includes multiple transistors which are connected in a stacked manner. Each transistor in the multiple transistors has a multi-finger structure, comprising at least one first finger used as a source and at least one second finger used as a drain. Each first finger is connected, using multiple first vias, to a source corresponding to the first finger, and each second finger is connected, using multiple second vias, to a drain corresponding to the second finger. The number of the first vias and the number of the second vias of a preset number of transistors in the multiple transistors progressively decrease in a direction away from the antenna port.

公开(公告)号：US20170040997A1

公开(公告)日：2017-02-09

申请号：US15296451

申请日：2016-10-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinger Yang ,  Yusong Chi ,  Jinhan Fan

IPC: H03K17/687 ,  H03K17/10 ,  H03K17/14 ,  H04B1/48

CPC classification number: H03K17/6871 ,  H03K17/102 ,  H03K17/145 ,  H03K17/693 ,  H04B1/48

Abstract: A radio frequency antenna switch includes an antenna port, a radio frequency signal port, and at least one branch connected to the antenna port or the radio frequency signal port, where each branch includes multiple transistors which are connected in a stack manner; channel width to length ratios of a preset number of transistors in the multiple transistors progressively decrease in a direction away from the antenna port, where the preset number is less than or equal to the total number of the multiple transistors. With the radio frequency antenna switch, capacitances of the preset number of transistors close to the antenna port increase, and distributed voltages that these transistors close to an antenna end in an off state need to bear are reduced.

Abstract translation: 射频天线开关包括天线端口，射频信号端口和连接到天线端口或射频信号端口的至少一个分支，其中每个分支包括以堆叠方式连接的多个晶体管; 多个晶体管中的预设数量的晶体管的沟道宽度与长度的比例在远离天线端口的方向上逐渐减小，其中预设数量小于或等于多个晶体管的总数。 利用射频天线开关，靠近天线端口的预设数量的晶体管的电容增加，并且这些晶体管接近天线端部处于断开状态的分布电压需要承受。