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EP-4398419-B1 - ELECTRONIC DEVICE COMPRISING ANTENNA

EP4398419B1EP 4398419 B1EP4398419 B1EP 4398419B1EP-4398419-B1

Inventors

  • KIM, KYOUNGMOK
  • LEE, SUNGJUN
  • SHIN, SANGGON
  • FEYGENSON, Oleg
  • YOO, Chaeup
  • HWANG, SOONHO

Dates

Publication Date
20260513
Application Date
20221121

Claims (15)

  1. An electronic device (101, 200) comprising: a housing (210, 220) including a first side surface (213a); a first conductive portion (2010) disposed between at least a first segmenting portion (2001) and a second segmenting portion (2002) formed in the first side surface, and including a first feeding point (501); a printed circuit board (261) disposed at least partially inside the housing and including a ground (G); a first electronic component (560) disposed adjacent to the first conductive portion; characterised by further comprising; a first flexible printed circuit board, FPCB (550) electrically connecting the first electronic component (560) to the printed circuit board (261); a matching circuit (520) disposed at the printed circuit board (261); a first wireless communication circuit (510) electrically connected to the first feeding point; and a processor (530) electrically connected to the first wireless communication circuit (510) and the matching circuit (520), wherein the processor is configured to control the matching circuit (520) to electrically connect the first FPCB (550) to the ground (G), or to electrically disconnect the first FPCB from the ground..
  2. The electronic device of claim 1, wherein the first electronic component (560) and the first conductive portion (2010) are disposed in a coupling structure.
  3. The electronic device of claim 1, wherein an antenna, including at least a part of the first conductive portion (2010), is configured to have a resonance frequency adjusted based on at least one passive electrical element (524) included in the matching circuit.
  4. The electronic device of claim 1, wherein the matching circuit (520) is electrically connected to the first FPCB (550) through an electrical path (526) and/or a connector (540).
  5. The electronic device of claim 1, wherein the matching circuit (520) includes: at least one switch (522); and at least one passive element (524) configured to be selectively connected to the at least one switch and having different element values.
  6. The electronic device of claim 5, wherein the at least one passive element (524) includes at least one of: a resistor, an inductor, or a capacitor.
  7. The electronic device of claim 1, wherein the matching circuit (520) is configured to adjust a matching value under control of the processor and/or the first wireless communication circuit.
  8. The electronic device of claim 1, wherein the first electronic component (560) includes one of a power button, a fingerprint key, or a volume control button.
  9. The electronic device of claim 1, wherein the first FPCB (550) includes an extension portion (555) having a specified length and/or shape.
  10. The electronic device of claim 1, further comprising: a second side surface (213b) forming a part of the housing; a second conductive portion (2020) disposed between at least a third segmenting portion (2003) and a fourth segmenting portion (2004) formed in the second side surface, and including a second feeding point (502); an antenna module (1000), comprising at least one antenna, disposed adjacent to the second conductive portion; a second FPCB (552) electrically connected to the antenna module (1000); and a second wireless communication circuit (512) electrically connected to the second feeding point and the processor, wherein the processor is configured to control the matching circuit to electrically connect the second FPCB (552) to the ground (G), or to electrically disconnect the second FPCB from the ground.
  11. The electronic device of claim 10, wherein the antenna module (1000) and the second conductive portion (2020) are disposed in a coupling structure.
  12. The electronic device of claim 10, wherein the antenna module (1000) is configured to operate in a first frequency band, and the second conductive portion is configured to operate in a second frequency band.
  13. The electronic device of claim 10, further comprising: a third side surface (213c) forming a part of the housing; a third conductive portion (2030) disposed between at least a fifth segmenting portion (2005) and a sixth segmenting portion. (2006) formed in the third side surface, and including a third feeding point (503); a second electronic component (1300) disposed adjacent to the third conductive portion; a third FPCB (553) electrically connected to the second electronic component; and a third wireless communication circuit (513) electrically connected to the third feeding point and the processor, wherein the processor is configured to control the matching circuit to electrically connect the third FPCB to the ground, or to electrically disconnect the third FPCB from the ground..
  14. The electronic device of claim 13, wherein the second electronic component (1300) and the third conductive portion (2030) are disposed in a coupling structure.
  15. The electronic device of claim 13, wherein the second electronic component (1300) includes a sound output module comprising circuitry and/or a camera module comprising a camera.

Description

[Technical Field] Various embodiments of the disclosure relate to an electronic device including at least one antenna. [Background Art] The use of an electronic device such as a smart phone of bar type, foldable type, rollable type or sliding type, or a tablet PC is increasing, and various functions are provided to the electronic device. The electronic device may transmit and receive a phone call and various data with another electronic device through wireless communication. In similar regards, publication US 2018/0316094 A1 relates to an electronic device having a housing with integrated conductive components for electrical connectivity and signal transmission, publication JP 2008 211479 A relates to a mobile communication terminal equipped with an antenna and a matching circuit for adjusting impedance characteristics, and publication EP 3 800 733 A1 relates to an electronic device comprising a housing, a printed circuit board (PCB) within the housing, and multiple antenna structures. In order to perform wireless communication with another electronic device using a network, the electronic device may include at least one antenna. [Disclosure of Invention] [Technical Problem] At least a portion of a housing forming the exterior of the electronic device may be formed of a conductive material (e.g., metal). At least the portion of the housing formed of the conductive material may be used as an antenna (or antenna radiator) for performing wireless communication. For example, the housing of the electronic device may be divided through at least one segmenting portion (e.g., a slit and/or opening) and be used as an antenna. The electronic device may include a printed circuit board (PCB) on which various electronic components are disposed. These electronic components may be electrically connected using a conductive connection member (e.g., a flexible printed circuit board; FPCB). When the conductive connection member is disposed adjacent to the antenna (e.g., a conductive portion), the radiation performance of the antenna may be deteriorated due to parasitic resonance generated through the conductive connection member. Various embodiments of the disclosure are to provide an electronic device capable of improving the antenna radiation performance by using a coupling structure between an antenna, wherein the antenna is a conductive portion, and an electronic component electrically connected to a matching circuit and a conductive connection member, wherein the conductive connection member is a flexible printed circuit board; FPCB. [Solution to Problem] According to various embodiments of the disclosure, an electronic device is provided as defined in the appended claims. [Advantageous Effects of invention] According to various embodiments of the disclosure, an electronic component electrically connected to a matching circuit via a conductive connection member, wherein the conductive member is a flexible printed circuit board (FPCB), is electrically connected to an antenna (e.g., a conductive portion) through a coupling structure. Accordingly, the radiation performance of the antenna can be improved by adjusting the resonance frequency of the antenna through the control of the matching circuit. In addition, various effects will be explicitly or implicitly provided in the disclosure. [Brief Description of Drawings] In connection with the description of the drawings, the same or similar reference numerals may be used for the same or similar components. FIG. 1 is a block diagram illustrating an electronic device in a network environment according to various embodiments of the disclosure.FIG. 2A is a perspective view illustrating a front surface of an electronic device in an unfolded state according to various embodiments of the disclosure.FIG. 2B is a plan view illustrating a front surface of an electronic device in an unfolded state according to various embodiments of the disclosure.FIG. 2C is a plan view illustrating a rear surface of an electronic device in an unfolded state according to various embodiments of the disclosure.FIG. 3A is a perspective view illustrating an electronic device in a folded state according to various embodiments of the disclosure.FIG. 3B is a perspective view illustrating a front surface of an electronic device in an intermediate state according to various embodiments of the disclosure.FIG. 4 is an exploded perspective view of an electronic device according to various embodiments of the disclosure.FIG. 5A is a diagram schematically illustrating a part of an electronic device including a first electronic component according to various embodiments of the disclosure.FIG. 5B is a cross-sectional view schematically illustrating a B-B' part of the electronic device shown in FIG. 5A according to various embodiments of the disclosure.FIG. 5C is a diagram schematically illustrating a constitution of a matching circuit of an electronic device according to various embodiments of the disclosure.FIG. 6A is