Near field communication antenna
First Claim
1. An antenna of a near field wireless communication device, the antenna comprising:
- a source coil pattern formed on a first surface of a flexible printed circuit board (FPCB) and formed with a first conductive line between a first antenna port and a second antenna port;
a resonance coil pattern formed with a second conductive line, which is galvanically separated from the source coil pattern; and
a capacitor pattern including a first terminal and a second terminal, wherein the first terminal of the capacitor pattern is connected to a first terminal of the second conductive line, and the second terminal of the capacitor pattern is connected to a second terminal of the second conductive line through a third conductive line formed on a second surface of the FPCB,wherein the resonance coil pattern is formed with a helical coil having a plurality of turns, and the capacitor pattern rotates along at least a portion of the helical coil of the resonance coil pattern.
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Accused Products
Abstract
An antenna of a near field wireless communication device is provided. The antenna may include: a source coil pattern formed on one surface of a flexible printed circuit board (FPCB) and formed with a first conductive line between a first antenna port and a second antenna port; a resonance coil pattern formed with a second conductive line, which electrically separates from the source coil pattern; and a capacitor pattern electrically connected to the second conductive line, wherein one terminal of the capacitor pattern is connected to a first terminal of the second conductive line and the other terminal of the capacitor pattern is connected to a second terminal of the second conductive line through a third conductive line formed on the other surface of the FPCB.
25 Citations
14 Claims
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1. An antenna of a near field wireless communication device, the antenna comprising:
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a source coil pattern formed on a first surface of a flexible printed circuit board (FPCB) and formed with a first conductive line between a first antenna port and a second antenna port; a resonance coil pattern formed with a second conductive line, which is galvanically separated from the source coil pattern; and a capacitor pattern including a first terminal and a second terminal, wherein the first terminal of the capacitor pattern is connected to a first terminal of the second conductive line, and the second terminal of the capacitor pattern is connected to a second terminal of the second conductive line through a third conductive line formed on a second surface of the FPCB, wherein the resonance coil pattern is formed with a helical coil having a plurality of turns, and the capacitor pattern rotates along at least a portion of the helical coil of the resonance coil pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification