公开(公告)号：US09912307B2

公开(公告)日：2018-03-06

申请号：US15074121

申请日：2016-03-18

Applicant: RF Micro Devices, Inc.

Inventor： Timothy D. Lewis

IPC: H03F9/02 ,  H03F3/21 ,  H01F17/00 ,  H01F27/28 ,  H01F27/38

CPC classification number: H03F3/211 ,  H01F17/0006 ,  H01F27/2804 ,  H01F27/289 ,  H01F27/38 ,  H03F2200/537

Abstract: Devices and related methods use a decoupling loop near closely spaced inductors that couples to each inductor and adds an additional coupling path between them, canceling the effects of the direct coupling between the inductors. When two inductors are close enough that undesired magnetic coupling between the inductors is possible, a decoupling loop adjacent the inductors is added that is configured to cancel the undesired magnetic coupling between the inductors. The decoupling loop is positioned, with respect to the first and second inductors, such that coupling between the decoupling loop and the first inductor induces a decoupling loop current around the decoupling loop and induces a second induced current on the second inductor that is equal and in an opposite direction to a first induced current on the second inductor caused by the first inductor. The undesired magnetic coupling between the conductors is reduced, and may even be totally cancelled.

公开(公告)号：US20160276097A1

公开(公告)日：2016-09-22

申请号：US15074121

申请日：2016-03-18

Applicant: RF Micro Devices, Inc.

Inventor： Timothy D. Lewis

IPC: H01F27/36 ,  H01F41/02 ,  H03F3/21

CPC classification number: H03F3/211 ,  H01F17/0006 ,  H01F27/2804 ,  H01F27/289 ,  H01F27/38 ,  H03F2200/537

Abstract: Devices and related methods use a decoupling loop near closely spaced inductors that couples to each inductor and adds an additional coupling path between them, canceling the effects of the direct coupling between the inductors. When two inductors are close enough that undesired magnetic coupling between the inductors is possible, a decoupling loop adjacent the inductors is added that is configured to cancel the undesired magnetic coupling between the inductors. The decoupling loop is positioned, with respect to the first and second inductors, such that coupling between the decoupling loop and the first inductor induces a decoupling loop current around the decoupling loop and induces a second induced current on the second inductor that is equal and in an opposite direction to a first induced current on the second inductor caused by the first inductor. The undesired magnetic coupling between the conductors is reduced, and may even be totally cancelled.

Abstract translation: 器件和相关方法使用紧密间隔的电感器附近的去耦环路，其耦合到每个电感器并且在它们之间增加额外的耦合路径，消除了电感器之间的直接耦合的影响。 当两个电感器足够接近以致电感器之间的不期望的磁耦合是可能的时，增加了与电感器相邻的去耦环路，其被配置为消除电感器之间的不需要的磁耦合。 解耦环相对于第一和第二电感器被定位，使得去耦环和第一电感之间的耦合在解耦环周围引起去耦环电流，并且在第二电感上引起第二感应电流，其等于和 与由第一电感器引起的第二电感器上的第一感应电流相反的方向。 导体之间不期望的磁耦合减小，甚至可能完全消除。