Sony patents vibration antenna using magnetic layers
Sony describes a device that combines a piezoelectric layer, which vibrates to create signals, with a magnetic layer placed next to it. The magnetic layer has specific directional properties, called easy and hard axes, that align parallel to the vibration path.
In the filing’s own words
A vibration antenna device according to an embodiment of the present technology includes: a piezoelectric layer; a pair of electrodes; and a magnetic layer. The piezoelectric layer is at least partially formed of a piezoelectric material and vibrates in a predetermined vibration direction. The pair of electrodes face each other across the piezoelectric layer. The magnetic layer is at least partially formed of a magnetic material, is adjacent to the piezoelectric layer in a direction perpendicular to the vibration direction, and has an easy axis direction and a hard axis direction positioned in a plane parallel to the vibration direction.
What exactly they claim (claim 1)
1. A vibration antenna device, comprising: a piezoelectric layer that is at least partially formed of a piezoelectric material and vibrates in a predetermined vibration direction; a pair of electrodes that face each other across the piezoelectric layer; and a magnetic layer that is at least partially formed of a magnetic material, is adjacent to the piezoelectric layer in a direction perpendicular to the vibration direction, and has an easy axis direction and a hard axis direction positioned in a plane parallel to the vibration direction.
Facts
- Company
- Sony (SONY GROUP CORPORATION)
- Official title
- VIBRATION ANTENNA DEVICE, VIBRATION ANTENNA DEVICE ARRAY, AND ELECTRONIC APPARATUS
- Publication number
- US20260280109A1
- Application number
- 19162148
- Filed
- Jan 22, 2024
- Published
- Sep 17, 2026
- Inventors
- 2
- Claims
- 20
Classified under
H01Q 1/38 Electricity & electronicsH02J 50/001 Electricity & electronicsH02J 50/15 Electricity & electronicsMore from Sony in Chips & hardware
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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.