Isolation between filters using inductive coupling cancellation

DE112024004014T5Undetermined Publication Date: 2026-07-23APPLE INC
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
APPLE INC
Filing Date
2024-09-19
Publication Date
2026-07-23
Patent Text Reader

Abstract

Techniques for isolating filters using inductive coupling cancellation are disclosed. A device includes a first filter containing a first plurality of inductors and a second filter containing a second plurality of inductors. The first and second filters are implemented physically adjacent to each other. The first and second of the first plurality of inductors and the first of the second plurality of inductors are polarized in a first direction, while the second of the second plurality of inductors is polarized in a second direction opposite to that of the first direction. The second of the second plurality of inductors is physically adjacent to one of the first and second of the first plurality of inductors, such that magnetic coupling currents induced in each other are canceled.
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