公开(公告)号：US11824245B2

公开(公告)日：2023-11-21

申请号：US17551367

申请日：2021-12-15

Applicant: Analog Devices, Inc.

Inventor： Xudong Wang ,  Jinzhou Cao ,  Song Lin

IPC: H01P1/18 ,  H03H11/20

CPC classification number: H01P1/18 ,  H03H11/20

Abstract: Systems, devices, and methods related to phase shifters are provided. An example apparatus includes a first node to receive an input signal, a second node, a first signal path coupled between the first node and the second node, and a second signal path coupled between the first node and the second node. The first signal path includes a positively coupled transformer. The second signal path includes a negatively coupled transformer. The second signal path is out-of-phase with the first signal path at the second node. The apparatus further includes a plurality of switches to select the first signal path or the second signal path. The apparatus may further include tuning capacitors to improve phase-shifting performance of the apparatus.

公开(公告)号：US20210194451A1

公开(公告)日：2021-06-24

申请号：US17134959

申请日：2020-12-28

Applicant: Analog Devices, Inc.

Inventor： Song Lin ,  Mir A. Faiz ,  Xudong Wang ,  Donghyun Jin ,  Bin Hou

IPC: H03H7/42 ,  H01P5/10 ,  H03F3/26

Abstract: Wideband baluns with enhanced amplitude and phase balance are provided. The wideband balun includes a first transmission line connected between a first port and a third port, and a second transmission line connected between a second port and a fourth port, and a third transmission line connected between the third port and a reference voltage, such as ground. To enhance phase and/or amplitude balance of the wideband balun, the wideband balun further includes a compensation structure operable to provide at least one of capacitive compensation or inductive compensation to balance the wideband balun. For example, in certain implementations, the compensation structure includes at least one of (i) a capacitor connected between the first port and the second port or (ii) a fourth transmission line connected between the first transmission line and the third port.

公开(公告)号：US20200220516A1

公开(公告)日：2020-07-09

申请号：US16380212

申请日：2019-04-10

Applicant: Analog Devices, Inc.

Inventor： Song Lin ,  Mir A. Faiz ,  Xudong Wang ,  Donghyun Jin ,  Bin Hou

IPC: H03H7/42 ,  H01P5/10 ,  H03F3/26

Abstract: Wideband baluns with enhanced amplitude and phase balance are provided. The wideband balun includes a first transmission line connected between a first port and a third port, and a second transmission line connected between a second port and a fourth port, and a third transmission line connected between the third port and a reference voltage, such as ground. To enhance phase and/or amplitude balance of the wideband balun, the wideband balun further includes a compensation structure operable to provide at least one of capacitive compensation or inductive compensation to balance the wideband balun. For example, in certain implementations, the compensation structure includes at least one of (i) a capacitor connected between the first port and the second port or (ii) a fourth transmission line connected between the first transmission line and the third port.

公开(公告)号：US11381216B2

公开(公告)日：2022-07-05

申请号：US17134959

申请日：2020-12-28

Applicant: Analog Devices, Inc.

Inventor： Song Lin ,  Mir A. Faiz ,  Xudong Wang ,  Donghyun Jin ,  Bin Hou

IPC: H03H7/42 ,  H01P1/10 ,  H01P5/10 ,  H03F3/26

Abstract: Wideband baluns with enhanced amplitude and phase balance are provided. The wideband balun includes a first transmission line connected between a first port and a third port, and a second transmission line connected between a second port and a fourth port, and a third transmission line connected between the third port and a reference voltage, such as ground. To enhance phase and/or amplitude balance of the wideband balun, the wideband balun further includes a compensation structure operable to provide at least one of capacitive compensation or inductive compensation to balance the wideband balun. For example, in certain implementations, the compensation structure includes at least one of (i) a capacitor connected between the first port and the second port or (ii) a fourth transmission line connected between the first transmission line and the third port.

公开(公告)号：US10911016B2

公开(公告)日：2021-02-02

申请号：US16380212

申请日：2019-04-10

Applicant: Analog Devices, Inc.

Inventor： Song Lin ,  Mir A. Faiz ,  Xudong Wang ,  Donghyun Jin ,  Bin Hou

IPC: H03H7/42 ,  H01P5/10 ,  H03F3/26

Abstract: Wideband baluns with enhanced amplitude and phase balance are provided. The wideband balun includes a first transmission line connected between a first port and a third port, and a second transmission line connected between a second port and a fourth port, and a third transmission line connected between the third port and a reference voltage, such as ground. To enhance phase and/or amplitude balance of the wideband balun, the wideband balun further includes a compensation structure operable to provide at least one of capacitive compensation or inductive compensation to balance the wideband balun. For example, in certain implementations, the compensation structure includes at least one of (i) a capacitor connected between the first port and the second port or (ii) a fourth transmission line connected between the first transmission line and the third port.

公开(公告)号：US12249960B2

公开(公告)日：2025-03-11

申请号：US18300069

申请日：2023-04-13

Applicant: Analog Devices, Inc.

Inventor： Song Lin ,  Xudong Wang ,  Jinzhou Cao ,  Christopher Eugene Hay

IPC: H03D7/14 ,  H03D7/12

Abstract: The present subject matter relates to active balun circuits. An active balun circuit includes a plurality of transistors; an output transmission line connected to output terminals of the transistors; an input transmission line; and a plurality of serial capacitors coupled to an input terminal of the transistors and the input transmission line.

公开(公告)号：US20240056031A1

公开(公告)日：2024-02-15

申请号：US18300069

申请日：2023-04-13

Applicant: Analog Devices, Inc.

Inventor： Song Lin ,  Xudong Wang ,  Jinzhou Cao ,  Christopher Eugene Hay

IPC: H03D7/14 ,  H03D7/12

CPC classification number: H03D7/1441 ,  H03D7/125 ,  H03D2200/0023

Abstract: The present subject matter relates to active balun circuits. An active balun circuit includes a plurality of transistors; an output transmission line connected to output terminals of the transistors; an input transmission line; and a plurality of serial capacitors coupled to an input terminal of the transistors and the input transmission line.