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Electronic device with coil antenna

A technology for electronic equipment and coil antennas, which can be applied to antennas, branch equipment, loop antennas, etc., and can solve the problems of deterioration of transmission performance and deterioration of reception performance of electronic equipment.

Active Publication Date: 2022-05-24
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As mentioned above, when the coil antenna is designed to have low impedance, the reception performance of electronic equipment may deteriorate
Conversely, when the coil antenna is designed to have high impedance, the transmission performance may deteriorate

Method used

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  • Electronic device with coil antenna
  • Electronic device with coil antenna
  • Electronic device with coil antenna

Examples

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Embodiment Construction

[0020] The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various example embodiments of the present disclosure as defined by the claims and their equivalents. The following description includes various details to assist in understanding, but these are to be regarded as examples only. Accordingly, those of ordinary skill in the art will recognize and understand that various changes and modifications of the various example embodiments described herein can be made without departing from the scope and spirit of the disclosure. Also, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

[0021] The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used to enable a clear and consistent understanding of the present disclosure. Accordingly, it should be apparent to those skilled in the a...

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PUM

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Abstract

The present invention provides an electronic device with a coil antenna. The electronic device includes a resonant coil forming at least one loop and configured to resonate at a specific frequency. A feed coil forms at least one loop, is physically separated from the resonant coil, and is positioned close to the resonant coil to enable electrical coupling with the resonant coil. A communication circuit is electrically connected to the feeding coil and configured to generate an electrical signal of the specific frequency.

Description

technical field [0001] Various embodiments of the present disclosure relate to electronic devices capable of transmitting and receiving magnetic field signals by using a coil antenna. Background technique [0002] An electronic device such as a smartphone may have a coil antenna for magnetic field communication such as Near Field Communication (NFC) or Magnetic Secure Transmission (MST). In addition, the electronic device may further have a coil antenna for charging the battery. [0003] Specifically, an electronic device may include a communication circuit and a coil antenna electrically connected to the communication circuit. The communication circuit may output an electric signal to the coil antenna, and the coil antenna may generate a magnetic field signal using energy of the electric signal, and then transmit the magnetic field signal to the outside. In order to improve the power transmission efficiency of the magnetic field signal, the coil antenna can be designed to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q7/00H01Q1/24H01Q1/22H04B5/00
CPCH01Q1/22H01Q1/2266H01Q1/243H01Q1/38H01Q1/50H01Q7/00H04B5/26H04B5/79H01Q5/378H04M1/0249H01Q7/06H01Q1/2208G06K19/06187G06K19/06206H04M1/0262H01Q1/242
Inventor 崔瑟玟朴钟石宋万弘申吉扬
Owner SAMSUNG ELECTRONICS CO LTD