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US 2022/0285841 A1Published application
Antenna device and antenna module having the same
AssigneeTDK Corporation
InventorsShoma KAJIKIYA, Masaki MATSUSHIMA
Life of this patent
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Abstract
Disclosed herein is an antenna device that includes a substrate; and a first coil pattern, a second coil pattern, and a first capacitor which are provided on a surface of the substrate. An opening region of the first coil pattern is smaller in area than an opening region of the second coil pattern. The first coil pattern is disposed so as to overlap the opening region of the second coil pattern. One of the first and second coil patterns is connected to the first capacitor to constitute a closed circuit.
Claims14
An antenna device comprising:
- a substrate;
- and
- a first coil pattern, a second coil pattern, and a first capacitor which are provided on a surface of the substrate,
- wherein an opening region of the first coil pattern is smaller in area than an opening region of the second coil pattern,
- wherein the first coil pattern is disposed so as to overlap the opening region of the second coil pattern, and
- wherein one of the first and second coil patterns is connected to the first capacitor to constitute a closed circuit.
3 more elements
An antenna module comprising:
- an antenna device comprising:
- a substrate;
- and
- a first coil pattern, a second coil pattern, and a first capacitor which are provided on a surface of the substrate,
- wherein an opening region of the first coil pattern is smaller in area than an opening region of the second coil pattern,
- wherein the first coil pattern is disposed so as to overlap the opening region of the second coil pattern, and
- wherein one of the first and second coil patterns is connected to the first capacitor to constitute a closed circuit;
- a metal member disposed so as to overlap the antenna device;
- a magnetic member disposed between the antenna device and the metal member;
- and
- an IC module that performs transmission/reception through other of the first and second coil patterns.
8 more elements
Dependencies are inferred from the claim text.