Winding configuration as part of an integrated structure for a medium frequency transformer
US-2022375678-A1 · Nov 24, 2022 · US
Method and apparatus for magnetic field communication
US11804874B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11804874-B2 |
| Application number | US-202217734286-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 2, 2022 |
| Priority date | May 3, 2021 |
| Publication date | Oct 31, 2023 |
| Grant date | Oct 31, 2023 |
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- Title
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Abstract
Official abstract text for this publication.
An antenna device for magnetic field communication may include: a first coil; a second coil; a third coil; a first capacitor connected to a 1-1 terminal of the first coil; a second capacitor connected to a 2-1 terminal of the second coil; a third capacitor connected to a 3-1 terminal of the third coil; and an input port including a first input terminal connected to a 1-2 terminal of the first coil, a 2-2 terminal of the second coil, and a 3-2 terminal of the third coil, and a second input terminal connected to the first capacitor, the second capacitor, and the third capacitor.
First claim
Opening claim text (preview).
What is claimed is: 1. An antenna device for magnetic field communication, comprising: a first coil; a second coil; a third coil; a first capacitor connected to a 1-1 terminal of the first coil; a second capacitor connected to a 2-1 terminal of the second coil; a third capacitor connected to a 3-1 terminal of the third coil; and an input port including a first input terminal and a second input terminal, the first input terminal being connected to a 1-2 terminal of the first coil, a 2-2 terminal of the second coil, and a 3-2 terminal of the third coil, with no capacitor between the first input terminal and each of the 1-2, 2-2, and 3-2 terminals, and the second input terminal being connected to the first capacitor, the second capacitor, and the third capacitor, wherein the first coil and the first capacitor form a first resonator, the second coil and the second capacitor form a second resonator, the third coil and the third capacitor form a third resonator, the first to third coils are disposed to overlap each other, and isolation between the first to third resonators is determined according to a degree of overlaps between the first to third coils. 2. The antenna device of claim 1 , wherein the overlaps between the first to third coils are in a parallel form. 3. The antenna device of claim 1 , wherein the first to third resonators have different resonant frequencies. 4. The antenna device of claim 1 , wherein the isolation between the first to third resonators is determined according to inner diameters and thicknesses of the first to third coils. 5. The antenna device of claim 1 , wherein the first to third resonators are disposed such that the isolation between the first to third resonators becomes maximum and the degree of overlaps between the first to third resonators becomes maximum. 6. The antenna device of claim 1 , wherein an input impedance of the input port has any one value among 1 to 5 ohms. 7. The antenna device of claim 1 , wherein each of the first to third coils has any one structure of a multilayer printed circuit board (PCB) or a stacked structure.
Assignees
Inventors
Classifications
- H04B5/26Primary
using coils · CPC title
- H04B5/0031Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Multiple coils at either side · CPC title
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Frequently asked questions
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- What does patent US11804874B2 cover?
- An antenna device for magnetic field communication may include: a first coil; a second coil; a third coil; a first capacitor connected to a 1-1 terminal of the first coil; a second capacitor connected to a 2-1 terminal of the second coil; a third capacitor connected to a 3-1 terminal of the third coil; and an input port including a first input terminal connected to a 1-2 terminal of the first c…
- Who is the assignee on this patent?
- Electronics & Telecommunications Res Inst
- What technology area does this patent fall under?
- Primary CPC classification H04B5/26. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 31 2023 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).