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WO2019208446A1 - Dispositif de communication - Google Patents

Dispositif de communication Download PDF

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Publication number
WO2019208446A1
WO2019208446A1 PCT/JP2019/016857 JP2019016857W WO2019208446A1 WO 2019208446 A1 WO2019208446 A1 WO 2019208446A1 JP 2019016857 W JP2019016857 W JP 2019016857W WO 2019208446 A1 WO2019208446 A1 WO 2019208446A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
substrate
inverted
disposed
ground pattern
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2019/016857
Other languages
English (en)
Japanese (ja)
Inventor
小田桐　一哉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Interactive Entertainment Inc
Original Assignee
Sony Interactive Entertainment Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Interactive Entertainment Inc filed Critical Sony Interactive Entertainment Inc
Publication of WO2019208446A1 publication Critical patent/WO2019208446A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H01Q5/371—Branching current paths

Definitions

  • the present invention relates to a communication device including an antenna for wireless communication.
  • Some communication devices that perform wireless communication include a plurality of antennas for the purpose of supporting a plurality of standards and improving communication quality.
  • a communication device including both an antenna corresponding to the Bluetooth (registered trademark) standard and an antenna corresponding to a wireless LAN standard is known.
  • a plurality of antennas are used for one wireless communication connection.
  • the present invention has been made in consideration of the above circumstances, and one of its purposes is to provide a communication device that can secure necessary performance in a relatively space-saving manner when a plurality of antennas are arranged. It is to provide.
  • a communication device includes a substrate, a first inverted F antenna disposed along a first side that forms an outer periphery of the substrate, an outer periphery of the substrate, and the first side
  • a second inverted F antenna disposed along a second side that is adjacent and intersects the first side, wherein the first inverted F antenna is the second of the first side.
  • the second inverted F antenna is arranged on the side close to the first inverted F antenna on the second side.
  • FIG. 1 is a plan view schematically showing an internal structure of a communication device 1 according to an embodiment of the present invention.
  • the communication device 1 is, for example, a personal computer, a stationary game machine, a portable game machine, a smartphone, a tablet, or the like, and includes a first antenna 10, a second antenna 20, and a substrate 30.
  • the first antenna 10 and the second antenna 20 are used for the communication device 1 to perform wireless communication with other communication devices by transmitting and / or receiving wireless signals (electromagnetic waves), respectively.
  • the first antenna 10 and the second antenna 20 may be antennas that transmit and receive radio signals in frequency bands that overlap each other.
  • the first antenna 10 and the second antenna 20 may perform wireless LAN communication based on the IEEE 802.11 standard based on a technique such as MIMO.
  • the board 30 is a circuit board on which an electronic circuit or the like that processes radio signals transmitted and received by the first antenna 10 and the second antenna 20 is mounted.
  • the substrate 30 may be a double-sided substrate, a multilayer substrate, or the like.
  • a shaded portion in FIG. 1 indicates a region (hereinafter referred to as a ground pattern 31) where a ground (reference potential) of the substrate 30 is formed.
  • the ground pattern 31 is formed on substantially the entire layer of the multilayer substrate.
  • the present invention is not limited to this, and the ground pattern 31 may be formed only on a partial region of the substrate 30. It may be formed in the same surface as the surface on which the electronic circuit is formed.
  • each of the first antenna 10 and the second antenna 20 is a pattern antenna, and is configured by a conductor pattern formed in a planar shape on one surface of the substrate 30.
  • the first antenna 10 and the second antenna 20 are formed along two adjacent sides across one corner (here, the lower left corner) of the substantially rectangular substrate 30.
  • the first antenna 10 is disposed on the lower side of the left side of the substrate 30 in plan view (that is, when viewed in a direction facing the surface of the substrate 30).
  • the first antenna 10 is disposed at a position on the left side of the substrate 30 that is closer to the second antenna 20.
  • the second antenna 20 is disposed on the left side of the lower side of the substrate 30.
  • the second antenna 20 is arranged at a position on the side closer to the first antenna 10 on the lower side of the substrate 30.
  • the first antenna 10 and the second antenna 20 are arranged relatively close to each other with one corner of the housing of the communication device 1 interposed therebetween.
  • the first antenna 10 is disposed in the lower third of the left side of the substrate 30 and the second antenna 20 is disposed in the left third of the lower side of the substrate 30.
  • FIG. 2 is a partially enlarged view showing a state in which a region A surrounded by a broken line in FIG. 1 is enlarged.
  • each of the first antenna 10 and the second antenna 20 is an inverted F antenna formed by a conductor pattern.
  • Point P1 and point P2 in the figure indicate the positions of the feeding points of the first antenna 10 and the second antenna 20, respectively.
  • the outer periphery of the ground pattern 31 has a U-shaped concave portion along the left side of the substrate 30 toward the inside.
  • a first blank region 32 is formed along the left side of the substrate 30 and surrounded by the ground pattern 31 on three sides.
  • the first antenna 10 is formed in the first blank area 32.
  • a portion of the ground pattern 31 that is adjacent to the first blank region 32 above the first blank region 32 in plan view is referred to as an adjacent portion 33.
  • the adjacent portion 33 is formed on the upper side of the first blank region 32 so that the ground pattern 31 protrudes toward the left side (that is, the outside of the substrate 30).
  • a portion in which the outer periphery of the ground pattern 31 is recessed in a U shape toward the inside is formed.
  • a second blank region 34 is formed along the lower side of the substrate 30 and surrounded on three sides by the ground pattern 31.
  • the second antenna 20 is formed in the second blank area 34.
  • a portion of the ground pattern 31 that is adjacent to the second blank region 34 on the right side of the second blank region 34 in plan view is referred to as an adjacent portion 35.
  • the adjacent portion 35 is formed on the right side of the second blank region 34 so that the ground pattern 31 protrudes downward (that is, outside the substrate 30).
  • a corner portion 36 constituting a part of the ground pattern 31 is formed in the lower left corner of the substrate 30.
  • the corner portion 36 has a substantially rectangular shape, and the left side and the lower side thereof are formed along the outer periphery of the substrate 30. Further, the upper side of the corner 36 is adjacent to the first blank area 32, and the right side is adjacent to the second blank area 34. That is, the corner portion 36 is formed in the lower left corner of the substrate 30 in areas facing the left side of the substrate 30, the lower side of the substrate 30, the first blank area 32, and the second blank area 34.
  • the corner 36 is not separated from the main body of the ground pattern 31 by the first blank area 32 and the second blank area 34, but is connected to the main body of the ground pattern 31. It is integrally formed.
  • the first blank region 32 is a region sandwiched between the adjacent portion 33 and the corner portion 36 facing each other
  • the second blank region 34 is a region sandwiched between the adjacent portion 35 and the corner portion 36 facing each other.
  • one or a plurality of vias may be provided in the corner portion 36.
  • the first antenna 10 includes a power feeding unit 11, a main body unit 12, a short-circuit unit 13, and a branching unit 14. Each of these members is formed on one surface of the substrate 30 by an elongated strip-shaped conductor.
  • the power supply unit 11 extends leftward from the power supply point P1 toward the outer periphery of the substrate 30.
  • the proximal end of the main body 12 and the proximal end of the short-circuit portion 13 are connected to the distal end (one end opposite to the feeding point P ⁇ b> 1) of the feeding portion 11. That is, the first antenna 10 is branched in the vertical direction at the tip of the power feeding unit 11.
  • the main body 12 is a part for transmitting and receiving radio signals in a frequency band that the first antenna 10 mainly communicates, and has a length corresponding to the frequency.
  • the main body 12 extends upward from the front end of the power supply unit 11 along the left side of the substrate 30 in plan view. That is, the main body 12 extends toward the side opposite to the lower side of the substrate 30 on which the second antenna 20 is disposed, and the tip thereof is farthest from the second antenna 20 in the first antenna 10. Is in position.
  • the front end portion of the main body portion 12 opposite to the power feeding portion 11 side is an open end that is not directly connected to the ground pattern 31.
  • the open end of the main body 12 is opposed to the adjacent portion 33 of the ground pattern 31. That is, the adjacent portion 33 is provided so as to reach the ground pattern 31 without leaving a large interval when the main body 12 is extended beyond the tip along the extending direction.
  • the adjacent portion 33 having a width determined when an antenna corresponding to the communication frequency of the first antenna 10 is constructed so as to face the open end of the main body portion 12, the open end of the main body portion 12 is adjacent. Capacitive coupling with the portion 33 can be performed so that an image current flows in the adjacent portion 33. Thereby, the directivity of the left direction of the 1st antenna 10 (namely, the direction which goes outside the board
  • the short-circuit portion 13 is a portion that functions as a short-circuit line in the inverted F antenna, and is in the direction opposite to the main body portion 12 from the tip of the power feeding portion 11 (that is, on the lower side of the substrate 30 on which the second antenna 20 is disposed). Stretched towards. That is, the short-circuit portion 13 is arranged side by side with the main body portion 12. The tip of the short-circuit portion 13 is connected to the corner portion 36 of the ground pattern 31.
  • the first antenna 10 is short-circuited by the short-circuit portion 13 and is electrically connected to the ground (reference potential).
  • the branching portion 14 is formed by branching from a position near the feeding point P1 of the feeding portion 11 and extends obliquely toward the upper left direction in plan view. That is, the branch portion 14 is away from the second antenna 20 and extends in a direction approaching the tip of the main body portion 12.
  • the branching unit 14 is provided for transmitting and receiving a radio signal having a frequency band different from that of the main body unit 12.
  • the first antenna 10 functions as a dual band antenna.
  • the branch unit 14 is provided in order to cause the first antenna 10 to function as a dual-band antenna. However, if the first antenna 10 does not need to function as a dual-band antenna, the branch unit 14 may be omitted.
  • the second antenna 20 has a shape similar to that of the first antenna 10 except that the second antenna 20 does not have a configuration corresponding to the branching unit 14 and is arranged in a different direction.
  • the second antenna 20 includes a power feeding unit 21, a main body unit 22, and a short-circuit unit 23. Similar to the first antenna 10, these members are all formed on one surface of the substrate 30 by an elongated strip-shaped conductor.
  • the power feeding unit 21 extends downward from the power feeding point P2 toward the outer periphery of the substrate 30.
  • the proximal end of the main body 22 and the proximal end of the short-circuit portion 23 are connected to the distal end of the power feeding portion 21 (one end opposite to the power feeding point P2).
  • the second antenna 20 is branched in the left-right direction at the tip of the power feeding unit 21.
  • the main unit 22 is a part for transmitting and receiving radio signals in a frequency band to be communicated by the second antenna 20 and has a length corresponding to the frequency.
  • the main body 22 extends from the front end of the power feeding unit 21 toward the right in the plan view along the lower side of the substrate 30. That is, the main body 22 extends toward the side opposite to the left side of the substrate 30 on which the first antenna 10 is disposed, and the front end of the main body 22 extends from the first antenna 10 within the second antenna 20. It is the most distant position.
  • the tip portion of the main body portion 22 opposite to the power feeding portion 21 is an open end that is not directly connected to the ground pattern 31.
  • the open end of the main body 22 is opposed to the adjacent portion 35 of the ground pattern 31. That is, the adjacent portion 35 is provided so as to reach the ground pattern 31 without leaving a large interval when the main body 22 is extended beyond the tip along the extending direction.
  • the adjacent portion 35 having a width determined when an antenna corresponding to the communication frequency of the second antenna 20 is constructed so as to face the open end of the main body portion 22, the open end of the main body portion 22 is adjacent. Capacitive coupling with the portion 35 can be performed so that an image current flows in the adjacent portion 35.
  • the directivity of the downward direction of the 2nd antenna 20 namely, the direction which goes outside the board
  • the short-circuit portion 23 is a portion that functions as a short-circuit line in the inverted F antenna, and is in the direction opposite to the main body portion 22 from the tip of the power supply portion 21 (that is, on the left side of the substrate 30 on which the first antenna 10 is disposed). Stretched towards. That is, the short-circuit part 23 is arranged in a straight line with the main body part 22. The tip of the short-circuit portion 23 is connected to the corner portion 36 of the ground pattern 31.
  • the second antenna 20 is short-circuited by the short-circuit portion 23 and is electrically connected to the ground (reference potential).
  • both the short circuit part 13 and the short circuit part 23 are connected with the corner
  • the resistance value of the current path that returns from the feed point P1 to the feed point P1 via the feed unit 11 and the short-circuit unit 13 is large according to the communication device to be connected. Therefore, it is necessary to set the loop length of the route according to the frequency to be communicated.
  • the resistance value of the current path that returns from the feeding point P2 to the feeding point P2 via the feeding unit 21 and the short-circuiting unit 23 is changed to the communication device at the connection destination. It is necessary to set the loop length of the route to a length corresponding to the frequency to be communicated so as to be a corresponding size.
  • a corner portion 36 that is a part of the ground pattern 31 is provided in the lower left corner of the substrate 30, and both the short-circuit portion 13 and the short-circuit portion 23 are connected to the corner portion 36, thereby A part of the current path and the current path of the second antenna 20 are made common.
  • both the first antenna 10 and the second antenna 20 can be efficiently arranged in a limited area.
  • the feeding point P1 of the first antenna 10 is closer to the second antenna 20, and the feeding point P2 of the second antenna 20 is the first antenna 10. It is arranged on the side close to each.
  • the first antenna 10 and the second antenna 20 are arranged in directions that intersect each other in plan view. More specifically, the first antenna 10 and the second antenna 20 are arranged along two adjacent sides of the outer periphery of the substrate 30 across one corner. Therefore, the extending direction of the main body portion 12 of the first antenna 10 and the extending direction of the main body portion 22 of the second antenna 20 intersect with each other at an angle of about 90 degrees. By arranging the two antennas in such a direction as to intersect, the correlation between the first antenna 10 and the second antenna 20 can be reduced.
  • At least the angle formed by the extending direction of the main body portion 12 of the first antenna 10 and the extending direction of the main body portion 22 of the second antenna 20 is 45 degrees or more and 135 degrees or less.
  • the communication device 1 when a plurality of inverted F antennas are arranged on a substrate, the area necessary for the arrangement can be kept small while preventing performance degradation. .
  • first antenna 10 and the second antenna 20 are not limited to those described above.
  • the positional relationship between the first antenna 10 and the second antenna 20 in the above description is merely an example, and may be arranged at a position different from this. Also, the shape and size of each of the first antenna 10 and the second antenna 20 may be different from those described above according to the frequency to be communicated.
  • the first antenna 10 and the second antenna 20 are arranged on the same surface of the multilayer substrate.
  • the present invention is not limited to this, and one antenna is arranged on a surface different from the other antenna. May be.
  • the correlation between the two antennas can be lowered as described above.
  • each of the surface on which the first antenna 10 is arranged and the surface on which the second antenna 20 is arranged are each angular.
  • the portion 36 may be formed. In this case, the corner portions 36 of the respective surfaces are arranged at overlapping positions in plan view and are electrically connected via vias or the like.
  • the ground of the 1st antenna 10 and the 2nd antenna 20 can be shared. Or you may arrange
  • the short circuit portion of the antenna formed on the surface where the corner portion 36 is disposed is directly connected to the corner portion 36 in the same surface, and the short circuit of the antenna formed on the surface where the corner portion 36 is not disposed.
  • the portion is connected to a corner portion 36 formed on another surface via a via or the like. Also by such a method, the ground of both antennas can be made common while keeping the arrangement area small.
  • 1 communication device 10 1st antenna, 20 2nd antenna, 11, 21 power supply unit, 12, 22 main body unit, 13, 23 short circuit unit, 14 branch unit, 30 substrate, 31 ground pattern, 32 1st blank area, 34 Second blank area, 33, 35 adjacent parts, 36 corners.

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  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

La présente invention concerne un dispositif de communication pourvu : d'un substrat (30) ; d'une première antenne F inversée (10) disposée le long d'un premier côté qui constitue la périphérie externe du substrat (30) ; et d'une seconde antenne F inversée (20) disposée le long d'un second côté qui est adjacent au premier côté, croise le premier côté, et constitue la périphérie externe du substrat (30), la première antenne F inversée (10) étant disposée sur le premier côté de façon à être proche de la seconde antenne F inversée (20), et la seconde antenne F inversée (20) étant disposée sur le second côté de façon à être proche de la première antenne F inversée (10).
PCT/JP2019/016857 2018-04-26 2019-04-19 Dispositif de communication Ceased WO2019208446A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-085387 2018-04-26
JP2018085387 2018-04-26

Publications (1)

Publication Number Publication Date
WO2019208446A1 true WO2019208446A1 (fr) 2019-10-31

Family

ID=68295340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/016857 Ceased WO2019208446A1 (fr) 2018-04-26 2019-04-19 Dispositif de communication

Country Status (1)

Country Link
WO (1) WO2019208446A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009501468A (ja) * 2005-07-13 2009-01-15 トムソン ライセンシング ダイバーシチ次数２のアンテナシステム及び該アンテナシステムを備えた無線通信装置用のカード

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009501468A (ja) * 2005-07-13 2009-01-15 トムソン ライセンシング ダイバーシチ次数２のアンテナシステム及び該アンテナシステムを備えた無線通信装置用のカード

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