Magnetoelectric very low frequency communication system
US10720564B2 · kind B2 · utility
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26Claims
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Key dates
| Filing date | Oct 25, 2017 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Oct 25, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N35/85
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Compact and power efficient acoustically actuated magnetoelectric antennas for transmitting and receiving very low frequency (VLF) electromagnetic waves utilize magnetoelectric coupling in a magnetic/piezoelectric heterostructure to provide voltage control of magnetization in transmission mode and magnetic control of electric polarization in receiving mode. The magnetoelectric antennas provide a power efficiency enhanced by orders of magnitude compared to magnetically or mechanically switching the magnetization. The antennas can be used in groups or arrays and can be combined to form VLF communication systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.