Iron core magnetic circuit multiplexing method
US-2024304370-A1 · Sep 12, 2024 · US
Coil antenna and communication terminal device
US9214728B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9214728-B2 |
| Application number | US-201414221356-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 21, 2014 |
| Priority date | Apr 27, 2012 |
| Publication date | Dec 15, 2015 |
| Grant date | Dec 15, 2015 |
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Abstract
Official abstract text for this publication.
To ensure a sufficient communication distance and to concurrently suppress a conductor loss, a coil antenna includes a magnetic core including a first peripheral surface including at least a first principal surface, a first coil conductor located on the first principal surface and wound around a predetermined winding axis, a first base material layer stacked on the first principal surface, including at least a first surface parallel or substantially parallel to the first principal surface, and made of a material having a lower magnetic permeability than the magnetic core, and a second coil conductor located on at least the first surface. Opposite ends of the second coil conductor are coupled to the first coil conductor on the first principal surface, and a direction in which a current flows through the first coil conductor on the first principal surface is substantially the same as a direction in which a current flows through the second coil conductor on the first surface.
First claim
Opening claim text (preview).
What is claimed is: 1. A coil antenna comprising: a magnetic core including a peripheral surface including at least a first principal surface; a first coil conductor located on the first principal surface and wound around a predetermined winding axis; a first base material layer stacked on the first principal surface, including at least a first surface parallel or substantially parallel to the first principal surface, and made of a material having a lower magnetic permeability…
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Frequently asked questions
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- What does patent US9214728B2 cover?
- To ensure a sufficient communication distance and to concurrently suppress a conductor loss, a coil antenna includes a magnetic core including a first peripheral surface including at least a first principal surface, a first coil conductor located on the first principal surface and wound around a predetermined winding axis, a first base material layer stacked on the first principal surface, incl…
- Who is the assignee on this patent?
- Murata Manufacturing Co
- What technology area does this patent fall under?
- Primary CPC classification H01Q7/06. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 15 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).