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ApplePatent applicationNetworks & wirelessInterest 6/10

Apple patents antenna system that measures signal leakage to switch bands

Apple describes a circuit for electronic devices that uses two antennas to handle different signal frequencies. It includes sensors that measure how much signal from one antenna leaks into the other, allowing the device to decide when to switch between them for better performance.

Why it mattersThis could lead to more efficient signal handling in future phones or laptops by automatically optimizing which antenna is active based on real-time signal conditions.

In the filing’s own words

An electronic device may be provided with a first antenna fed by a first path and a second antenna fed by a second path. A first coupler may be disposed on the first path, a second coupler may be disposed on the second path, and a feedback path may couple the couplers to a receiver. A low-pass filter may be disposed on the second path. The first antenna may transmit signals in a low band. Some of the signals may couple onto the second antenna. The second coupler may pass the coupled signals to the receiver. Control circuitry may generate a scattering parameter value characterizing the coupling of the signals from the first antenna onto the second antenna. The scattering parameter value may be used to determine when to switch the first antenna out of use and the second antenna into use for covering the low band.

What exactly they claim (claim 1)

1. Circuitry comprising: a first signal coupler operably coupled to a first transmission line; a second signal coupler operably coupled to a second transmission line; and a feedback path that includes a first switch communicatively coupled with the first signal coupler and the second signal coupler, a second switch, and a component coupled between the first switch and the second switch, wherein the component comprises a bypassable filter or a programmable attenuator.

Facts

Company
Apple (Apple Inc.)
Official title
Electronic Devices with Dynamic Antenna Switching
Publication number
US20260269468A1
Application number
19544785
Filed
Feb 19, 2026
Published
Sep 10, 2026
Inventors
9
Claims
20

Classified under

H01Q 3/24 Electricity & electronicsH01Q 1/241 Electricity & electronicsH01Q 5/35 Electricity & electronicsH01Q 5/378 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.