WO2021020397A1 - Module d'antenne, dispositif électronique, et procédé de communication sans contact - Google Patents

Module d'antenne, dispositif électronique, et procédé de communication sans contact Download PDF

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Publication number
WO2021020397A1
WO2021020397A1 PCT/JP2020/028912 JP2020028912W WO2021020397A1 WO 2021020397 A1 WO2021020397 A1 WO 2021020397A1 JP 2020028912 W JP2020028912 W JP 2020028912W WO 2021020397 A1 WO2021020397 A1 WO 2021020397A1
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WIPO (PCT)
Prior art keywords
antenna
communication
communication antenna
module
pair
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Application number
PCT/JP2020/028912
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English (en)
Japanese (ja)
Inventor
長田　孝之
悠太 川上
快人 近藤
忠広 黒田
Original Assignee
ホシデン株式会社
学校法人慶應義塾
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Application filed by ホシデン株式会社, 学校法人慶應義塾 filed Critical ホシデン株式会社
Priority to JP2021535361A priority Critical patent/JPWO2021020397A1/ja
Publication of WO2021020397A1 publication Critical patent/WO2021020397A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • 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
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H04B5/48—

Definitions

  • the present invention relates to an antenna module, an electronic device, and a non-contact communication method.
  • the conventional antenna module is described in Patent Document 1 below.
  • This module includes a substrate, a first loop antenna, and a second loop antenna.
  • the first loop antenna and the second loop antenna are concentrically provided on the same surface of the substrate.
  • Each of the first loop antenna and the second loop antenna has a pair of terminals.
  • a signal is input to each of the first loop antenna and the second loop antenna, and non-contact communication is performed by each of the first loop antenna and the second loop antenna.
  • the first loop antenna and the second loop antenna are arranged concentrically as described above, so that the first loop antenna is generated.
  • the noise interferes with the non-contact communication of the second loop antenna, and the noise generated from the second loop antenna interferes with the non-contact communication of the first loop antenna.
  • the present invention is to provide an antenna module, an electronic device, and a non-contact communication method capable of preferably simultaneously performing non-contact communication using a plurality of communication antennas.
  • the antenna module of one aspect of the present invention includes a plurality of communication antennas arranged substantially concentrically.
  • the plurality of communication antennas have an antenna body and a pair of terminal portions.
  • a digital signal is input to at least one terminal portion of the pair of terminal portions, and is output from the other terminal portion through the antenna body.
  • the pair of terminals have inner ends that are spaced apart from each other and adjacent to each other.
  • the plurality of communication antennas include at least a first communication antenna and a second communication antenna.
  • the second communication antenna is arranged outside the first communication antenna at intervals from the first communication antenna.
  • the area between the center of the first communication antenna and the pair of virtual first half straight lines passing through at least a part of the inner ends of the pair of terminals of the first communication antenna is defined as the first virtual area, and the center of the first communication antenna.
  • the first virtual area is used.
  • a pair of terminal portions of the first communication antenna and a pair of terminal portions of the second communication antenna are arranged so that the region and the second virtual region do not overlap each other in a plan view.
  • the terminal portion of the first communication antenna is arranged apart from the terminal portion of the second communication antenna so that the first virtual area and the second virtual area do not overlap each other in the plan view. Therefore, when non-contact communication is performed simultaneously using the first communication antenna and the second communication antenna, the noise generated from the terminal part of the first communication antenna is generated from the terminal part of the second communication antenna and the second side of the other party.
  • non-contact communication can be preferably performed at the same time by using at least the first communication antenna and the second communication antenna.
  • the pair of terminal portions can be configured to further have an outer end on the opposite side of the inner end.
  • the region between the center of the first communication antenna and the pair of virtual third half lines extending radially through at least a part of the outer ends of the pair of terminals of the first communication antenna is defined as the third virtual region, and the first The area between the center of the communication antenna or the center of the second communication antenna and the virtual pair of fourth half lines extending through at least a part of the outer ends of the pair of terminals of the second communication antenna is referred to as the fourth virtual area.
  • a pair of terminal portions of the first communication antenna and a pair of terminal portions of the second communication antenna shall be arranged so that the third virtual area and the fourth virtual area do not overlap each other in a plan view. Is possible.
  • the pair of terminal portions of the first communication antenna is connected to the pair of terminal portions of the second communication antenna so that the third virtual area and the fourth virtual area do not overlap each other in the plan view. Since they are arranged further apart, noise generated from the terminal portion of the first communication antenna is generated from the terminal portion of the second communication antenna when the first communication antenna and the second communication antenna are used for simultaneous non-contact communication. Non-contact communication with the other party's second communication antenna or noise generated from the terminal of the second communication antenna causes non-contact communication between the terminal of the first communication antenna and the other party's first communication antenna. The possibility of affecting the antenna is further reduced.
  • the electric field strength of the pair of terminals of the first communication antenna is the first communication.
  • the electric field strength of the pair of terminals of the second communication antenna may be stronger than the electric field strength of the antenna body of the antenna, and may be stronger than the electric field strength of the antenna body of the second communication antenna.
  • the electric field strength of one terminal of the first communication antenna is the first communication.
  • the electric field strength of one terminal portion of the second communication antenna may be stronger than the electric field strength of the other terminal portion of the antenna, and may be stronger than the electric field strength of the other terminal portion of the second communication antenna.
  • the transmission speed of the digital signal input to the second communication antenna can be slower than the transmission speed of the digital signal input to the first communication antenna.
  • the electric length of the communication antenna is increased, so that it becomes difficult for the communication antenna to transmit a digital signal having a high transmission speed. Therefore, by transmitting a digital signal having a slow transmission speed to the second communication antenna having a long electric length and transmitting a digital signal having a high transmission speed to a first communication antenna having a short electric length, different communication speeds are simultaneously generated. Contact communication can be preferably performed.
  • the width dimension of the first communication antenna is larger than the width dimension of the second communication antenna.
  • the electric length of the first communication antenna can be increased.
  • the electric length of the first communication antenna can be substantially the same as or close to the electric length of the second communication antenna.
  • the antenna module of any of the above aspects can be configured to further include a ground conductor arranged between the first communication antenna and the second communication antenna.
  • the ground conductor reduces the possibility of crosstalk between the digital signal transmitted to the first communication antenna and the digital signal transmitted to the second communication antenna.
  • Non-contact communication can be more preferably performed simultaneously with the first communication antenna and the second communication antenna.
  • the antenna module of any of the above embodiments can be configured to further include an insulating substrate. It is possible to have a configuration in which a plurality of communication antennas of any of the above embodiments are provided substantially concentrically on the substrate.
  • the antenna body of the first communication antenna can be formed into a substantially annular shape with a part broken.
  • the pair of terminal portions of the first communication antenna can be both ends of the antenna body of the first communication antenna.
  • the antenna body of the second communication antenna can have a substantially annular shape with a part broken.
  • the pair of terminal portions of the second communication antenna can be both ends of the antenna body of the second communication antenna.
  • the antenna module of any of the above aspects can be configured to further include a first transmitter and a second transmitter.
  • the first transmission unit can be configured to be capable of transmitting a digital signal to at least one of the pair of terminal units of the first communication antenna.
  • the second transmission unit can be configured to be capable of transmitting a digital signal to at least one of the pair of terminal units of the second communication antenna.
  • the non-contact communication device of one aspect of the present invention includes a first antenna module and a second antenna module rotatably supported by the first antenna module.
  • the first antenna module and the second antenna module can be the antenna module of any of the above aspects.
  • the first communication antenna of the first antenna module and the first communication antenna of the second antenna module are arranged so as to be aligned in the axial direction of the rotation axis of the second antenna module, and the first antenna module is the first.
  • the two communication antennas and the second communication antenna of the second antenna module are arranged so as to be aligned in the axial direction.
  • the second antenna module does not need to be rotatably supported by the first antenna module, and may be configured to face each other during non-contact communication.
  • FIG. 1 of the 1st antenna module of the electronic device It is a schematic sectional view of the 1st antenna module and the 2nd antenna module of the electronic device which concerns on Example 1 of this invention, and the schematic enlarged view of the ⁇ part. It is a 2-2 sectional view in FIG. 1 of the 1st antenna module of the electronic device. It is 3-3 sectional view in FIG. 1 of the 1st antenna module and the 2nd antenna module of the electronic device. It is a block diagram of the 1st antenna module and the 2nd antenna module of the electronic device. It is explanatory drawing for demonstrating 1st example of the positional relationship of the 1st and 2nd communication antennas of the 1st antenna module and the 2nd antenna module of the electronic device.
  • FIG. 5 is a schematic plan view of a substrate, a communication antenna, a ground conductor, and a charging antenna of the first antenna module and the second antenna module of the electronic device according to the second embodiment of the present invention.
  • FIG. 5 is a schematic plan view of a substrate, a communication antenna, a ground conductor, and a charging antenna of the first antenna module and the second antenna module of the electronic device according to the third embodiment of the present invention.
  • the first antenna module M1 (hereinafter, also simply referred to as module M1) and the second antenna module M2 (hereinafter, simply referred to as module M2) of the electronic device D according to a plurality of examples including the first embodiment of the present invention. ) Will be described with reference to FIGS. 1 to 6C.
  • the module M2 will be described.
  • FIG. 1 shows the module M1 and the module M2 of the first embodiment
  • FIG. 2 shows the module M1 of the first embodiment
  • FIG. 3 shows the module M2 of the first embodiment.
  • FIG. 4 is a block diagram of the module M1 and the module M2 of the first embodiment.
  • 5A and 5B are explanatory views for explaining the first and second examples of the positional relationship of the first and second communication antennas 200a described later in the module M1 and the module M2 of the first embodiment.
  • 6A, 6B, and 6C are for explaining the positional relationship of the first, second, and third design modification examples of the first and second communication antennas 200a described later in the module M1 and the module M2 of the first embodiment. It is explanatory drawing.
  • the electronic device D includes a module M1 and a module M2.
  • the module M1 supports the module M2 on a virtual rotation axis P or a real rotation axis so as to be rotatable within a predetermined angle range or 360 °.
  • FIG. 1 shows a virtual rotation axis P of the module M2.
  • the ZZ'direction shown in FIG. 1 corresponds to the axial direction of the rotation axis P.
  • Module M1 includes a substrate 100a (for example, a substrate or an insulator) having an insulating property.
  • the outer shape of the substrate 100a can be arbitrarily set, and for example, it can be circular or polygonal when viewed from the ZZ'direction.
  • the substrate 100a has a first surface 101a, a second surface 102a on the opposite side thereof, and a plurality of conductive lines 110a.
  • the conductive line 110a is provided inside the first surface 101a of the substrate 100a, the second surface 102a of the substrate 100a, and / or the substrate 100a.
  • Module M1 further includes a plurality of communication antennas 200a.
  • Each of the plurality of communication antennas 200a of the module M1 is arranged so as to be arranged at intervals in the ZZ'direction with respect to each of the plurality of communication antennas 200b of the module M2.
  • Each of the plurality of communication antennas 200a of the module M1 can be electromagnetically coupled to each of the plurality of communication antennas 200b of the module M2.
  • Each of the communication antennas 200a and one of the communication antennas 200b are electromagnetically coupled to each other to form a coupler.
  • the distance (communication distance) in the ZZ'direction from the communication antenna 200a to the communication antenna 200b at the time of electromagnetic field coupling is preferably a short distance of about 0 mm to several mm, but is limited to this. is not it.
  • the plurality of communication antennas 200a are conductors (see FIG. 2), metal plates, coils, or the like provided substantially concentrically on the first surface 101a of the substrate 100a.
  • the conductor may be formed on the first surface 101a of the substrate 100a by (a) a well-known printing method, photolithography, or the like, or (b) the first surface of the substrate 100a by sputtering, electroless plating, or vapor deposition. After forming the conductor film on 101a, the conductor may be formed by removing unnecessary parts of the conductor film by etching with a laser or a chemical, or (c) a metal complex dispersed in the substrate 100a.
  • a plating film may be formed on the plating catalyst by electroless plating or the like.
  • the surface of the communication antenna 200a on the Z direction side may be flat, but the surface is not limited to this.
  • the substantially concentric shape in the present invention means not only that a plurality of communication antennas 200a are arranged concentrically with their centers C aligned, but also sequentially inside (substantially concentric) without matching the centers C. It shall include those that are arranged.
  • the substantially concentric shape in the present invention does not matter whether or not the centers C of the plurality of communication antennas 200a coincide with each other.
  • the center C may be arranged so as to coincide with the rotation axis P (see FIGS. 1 to 3), and the center C is the rotation axis P. It may be arranged in the vicinity of, but is not limited to this.
  • the center C of at least one communication antenna 200a may be arranged so as to coincide with the rotation axis P, or the center C of at least one communication antenna 200a may be arranged. It may be arranged in the vicinity of the rotation axis P, but is not limited to this. It should be noted that, in FIG. 4, although the plurality of communication antennas 200a are arranged in parallel for convenience of illustration, they do not show the actual arrangement relationship of the plurality of communication antennas 200a.
  • the plurality of communication antennas 200a have an antenna main body 210a and a pair of terminal portions 221a and 222a.
  • the antenna main bodies 210a of the plurality of communication antennas 200a are provided on the first surface 101a of the substrate 100a at intervals substantially concentrically.
  • the plurality of antenna bodies 210a includes at least one set of adjacent antenna bodies 210a. In one set or adjacent antenna bodies 210a of each set, the inner dimension of the outer antenna body 210a is larger than the outer dimension of the inner antenna body 210a. There is a gap between the adjacent antenna bodies 210a, and they are not in contact with each other.
  • the antenna body 210a located on the innermost side of the plurality of antenna bodies 210a will be referred to as the innermost antenna body 210a
  • the antenna body 210a located on the outermost side will be referred to as the outermost antenna body 210a.
  • the shape of the innermost antenna body 210a is arbitrary, but for example, when viewed from the Z direction side (in a plan view), the antenna body 210a is partially broken (for example, a partially broken annular shape (FIG. 2). , 5A, 5B and 6B) or partially broken polygonal ring (not shown), substantially annular (eg, annular (see FIGS. 6A and 6C) or polygonal ring (not shown)), abbreviated. It can be U-shaped, circular or polygonal.
  • the antenna main body 210a other than the innermost antenna main body 210a of the plurality of antenna main bodies 210a is a substantially annular shape (for example, a partially broken annular shape) when viewed from the Z direction side (in a plan view). 2.
  • Fig. 5A, Fig. 5B and Fig. 6B or partially broken polygonal ring (not shown), substantially ring (for example, annular (see FIGS. 6A and 6C) or polygonal ring (not shown)) or It is almost U-shaped.
  • the terminal portions 221a and 222a are a portion where a digital signal is input and / or a portion where a digital signal is output.
  • the terminal portions 221a and 222a are provided on the first surface 101a of the substrate 100a, are located away from the center C of the antenna main body 210a, and are arranged at intervals from each other.
  • the terminal portions 221a and 222a may be a) an arbitrary part of the antenna main body 210a, or b) may extend from the antenna main body 210a.
  • the terminal portions 221a and 222a when the terminal portions 221a and 222a have the configuration of a), the terminal portions 221a and 222a can be in any of the following modes a-1 and a-2. a-1)
  • the terminal portion 221a In each communication antenna 200a, when the antenna body 210a is substantially annular with a part broken, the terminal portion 221a is one end of the antenna body 210a (one of both ends of the antenna body within the claims).
  • the terminal portion 222a can be configured as the other end of the antenna body 210a (corresponding to the other end of both ends of the antenna body in the claims) (see FIGS. 2, 5A and 5B). ).
  • each communication antenna 200a when the antenna body 210a is substantially annular, the terminal portions 221a and 222a can be configured as a part of the antenna body 210a (see FIG. 6A).
  • a portion to which one of the pair of through-hole electrodes of the antenna body 210a is connected is designated as a terminal portion 221a, and the other is designated as a terminal portion 222a. It is possible to do.
  • the terminal portions 221a and 222a can be in any of the following modes b-1 and b-2.
  • each communication antenna 200a when the antenna body 210a is a substantially annular shape in which a part is broken, the terminal portion 221a extends from one end of the antenna body 210a, and the terminal portion 222a is the other end of the antenna body 210a. It is possible to have a configuration in which the terminal portions 221a and 222a extend from the portions and are arranged so as to be adjacent to each other (see FIG. 6B).
  • each communication antenna 200a when the antenna main body 210a is substantially annular, the terminal portions 221a and 222a may be arranged so as to extend from a part of the antenna main body 210a and to be adjacent to each other. It is possible (see FIG. 6C).
  • the terminal portions 221a and 222a have any of the configurations a) and b), in each communication antenna 200a, the terminal portions 221a and 222a are located outside the corresponding antenna main body 210a when viewed from the Z direction side. It is arranged inside another antenna body 210a and has an inner end adjacent to each other and an outer end on the opposite side thereof. The inner end and the outer end may have a first corner portion located inside (center C side of the antenna body 210a) and a second corner portion located outside, but the present invention is not limited thereto. ..
  • the plurality of communication antennas 200a include at least the first communication antenna 200a and the second communication antenna 200a.
  • the first communication antenna 200a is the inner communication antenna 200a of the adjacent communication antennas 200a among the plurality of communication antennas 200a
  • the second communication antenna 200a is the outer communication antenna of the adjacent communication antennas 200a. It is 200a.
  • the antenna body 210a of the first communication antenna 200a is referred to as the first antenna body 210a
  • the terminal portions 221a and 222a of the first communication antenna 200a are referred to as the first terminal portions 221a and 222a
  • the second The antenna body 210a of the communication antenna 200a is referred to as the second antenna body 210a
  • the terminal portions 221a and 222a of the second communication antenna 200a are referred to as the second terminal portions 221a and 222a.
  • the first antenna body 210a can be the innermost antenna body 210a of any of the above embodiments (see FIGS. 2 and 5A to 6C), and the innermost antenna body of any of the above embodiments. It is also possible to use an antenna body 210a other than the 210a and the outermost antenna body 210a.
  • the first terminal portions 221a and 222a can be terminal portions 221a and 222a in any of the above embodiments.
  • the second antenna main body 210a is an antenna main body 210a of any of the above aspects other than the innermost antenna main body 210a among the plurality of antenna main bodies 210a, and is attached to the first antenna main body 210a outside the first antenna main body 210a. On the other hand, they are arranged at intervals.
  • the second terminal portions 221a and 222a can be the terminal portions 221a and 222a of any of the above aspects.
  • a pair of virtual half straight lines extending radially from the center C of the first antenna main body 210a of the first communication antenna 200a through at least a part of the inner ends of the first terminal portions 221a and 222a of the first communication antenna 200a.
  • a half straight line L1 first half straight line L1
  • a pair of virtual antennas extending radially from the center C of the first antenna body 210a and / or the center C of the second antenna body 210a through at least a part of the inner ends of the second terminal portions 221a and 222a of the second communication antenna 200a.
  • the half line be the half line L2 (second half line L2).
  • the half straight lines L1 and L2 may pass through the first corner portion of the inner end of the first and second terminal portions 221a and 222a, or may pass through the first corner portion of the inner end of the first and second terminal portions 221a and 222a. It may pass through the two corners, or may pass through all the inner ends of the first and second terminal portions 221a and 222a.
  • the virtual area between the half straight lines L1 is defined as the first virtual area
  • the virtual area between the half straight lines L2 is defined as the second virtual area.
  • a pair of virtual half lines extending radially from the center C of the first antenna main body 210a of the first communication antenna 200a through at least a part of the outer ends of the first terminal portions 221a and 222a of the first communication antenna 200a. Let it be a half straight line L3 (third half straight line L3).
  • a pair of virtual antennas extending radially from the center C of the first antenna body 210a and / or the center C of the second antenna body 210a through at least a part of the outer ends of the second terminal portions 221a and 222a of the second communication antenna 200a.
  • the half line be the half line L4 (fourth half line L4).
  • the half straight lines L3 and L4 may pass through the first corner portion of the outer end of the first and second terminal portions 221a and 222a, or may pass through the first corner portion of the outer end of the first and second terminal portions 221a and 222a. It may pass through the two corners, or may pass through all the outer ends of the first and second terminal portions 221a and 222a.
  • the virtual area between the half straight lines L3 is defined as the third virtual area.
  • the third virtual area includes the first virtual area.
  • the virtual area between the half straight lines L4 is defined as the fourth virtual area.
  • the fourth virtual area includes the second virtual area.
  • the first terminal portions 221a and 222a and the second terminal portions 221a and 222a are arranged so that at least the first virtual area and the second virtual area do not overlap each other when viewed from the Z direction side (in a plan view). (See FIG. 5A).
  • the second terminal portion 221a should not be located in the region between the half straight lines L1 and L3 extending through at least a part of the inner end and the outer end of the first terminal portion 221a and / or the first.
  • the first terminal portions 221a and 222a are arranged so that the two terminal portions 222a are not located in the region between the half straight lines L1 and L3 extending through at least a part of the inner end and the outer end of the first terminal portion 222a. It is arranged away from the second terminal portions 221a and 222a.
  • the first terminal portions 221a and 222a and the second terminal portions 221a and 222a are arranged so that the third virtual area and the fourth virtual area do not overlap each other when viewed from the Z direction side (in a plan view). Also good (see FIG. 5B). In this case, the first terminal portions 221a and 222a are arranged farther from the second terminal portions 221a and 222a than in the former case.
  • a virtual straight line extending from the center C of the first antenna main body 210a so as to divide the first virtual area in half is defined as the first dividing line
  • the second virtual area is divided in half from the center C of the first antenna main body 210a.
  • the first dividing line and the second dividing line of the first terminal portions 221a and 222a and the second terminal portions 221a and 222a are the first antenna main body 210a. It is possible to arrange the antenna so as to be located around the center C at an angular interval of about 90 ° to about 180 °.
  • the first dividing line and the second dividing line are approximately 180 ° around the center C of the first antenna main body 210a (FIGS. 2 and 5A). (See FIG. 6C), it is possible to arrange the configurations so that they are located at an angular interval of approximately 120 ° or approximately 90 °. Regardless of which of the above angles the angle between the first dividing line and the second dividing line is, the third virtual area and the fourth virtual area are viewed from the Z direction side (in a plan view). Do not overlap with each other.
  • the first dividing line may extend so as to divide the third virtual area in half, and the second dividing line may extend so as to divide the fourth virtual area in half.
  • the electrical length of the first communication antenna 200a is such that a digital signal is input from the first terminal portion 221a during transmission, passes through the first antenna main body 210a to reach the second terminal portion 222a, and the digital signal is transmitted to the second terminal.
  • the distance is input from the unit 222a, passes through the first antenna main body 210a, and reaches the first terminal unit 221a, or each of these distances.
  • the electrical length of the second communication antenna 200a is the distance from the first terminal portion 221a to the second terminal portion 222a through the second antenna main body 210a during transmission, and the second digital signal during transmission. It is the distance input from the terminal portion 222a, passing through the second antenna main body 210a to reach the first terminal portion 221a, or the distances of each of them.
  • the electrical length of the second communication antenna 200a is because the second antenna main body 210a is arranged outside the first antenna main body 210a, and the area of the second antenna main body 210a is larger than the area of the first antenna main body 210a. , It becomes longer than the electric length of the first communication antenna 200a.
  • the width dimension W of the first antenna main body 210a can be made larger than the width dimension W of the second antenna main body 210a.
  • the width dimension W of the first antenna main body 210a can be set to 0.5 to 1.0 mm
  • the width dimension W of the second antenna main body 210a can be set to 1.0 to 1.5 mm. If the width dimension W of the first antenna main body 210a is made larger than the width dimension W of the second antenna main body 210a, the area of the first antenna main body 210a increases, and as a result, the electric length of the first communication antenna 200a increases. To do.
  • the width dimension W of the first antenna main body 210a is set to be substantially the same as or close to the electric length of the second communication antenna 200a of the second antenna main body 210a. It may be larger than the width dimension W.
  • the area of the antenna body 210a may be increased.
  • the width dimension W of the first antenna main body 210a may be larger than the width dimension W of the second antenna main body 210a, and the electric length of the first communication antenna 200a may be shorter than the electric length of the second communication antenna 200a. Further, the width dimension W of the first antenna main body 210a may be smaller than the width dimension W of the second antenna main body 210a, or the width dimension W of both may be the same.
  • Module M1 may further include at least one ground conductor 300a.
  • the at least one ground conductor 300a is a substantially annular shape (for example, an annular shape (see FIG. 2) or a polygonal ring shape) provided on the first surface 101a of the substrate 100a, a substantially annular shape (for example, an annular shape) or a partially broken ring shape. It is a polygonal ring) or a substantially U-shaped conductor or a metal plate, and is arranged between adjacent communication antennas 200a among a plurality of communication antennas 200a.
  • the conductor can be formed in the same manner as the conductor of the communication antenna 200a.
  • At least one ground conductor 300a is connected to the ground.
  • the outer line of at least one ground conductor 300a may extend along the inner line of the antenna body 210a of the communication antenna 200a outside the adjacent communication antenna 200a, or may extend along the inner line of the at least one ground conductor 300a. May extend along the outline of the antenna body 210a of the communication antenna 200a inside the adjacent communication antennas 200a, but is not limited thereto. At least one ground conductor 300a can be omitted.
  • Module M1 may further include a communication circuit unit 400a.
  • the communication circuit unit 400a is mounted on the second surface 102a of the substrate 100a.
  • the communication circuit unit 400a has a number of transmission units 410a and / or a restoration unit 420a corresponding to the number of the plurality of communication antennas 200a.
  • Each transmission unit 410a is electrically connected to the terminal units 221a and 222a of the corresponding communication antenna 200a via the conductive line 110a of the substrate 100a.
  • Each transmission unit 410a is composed of a logic circuit such as an IC capable of transmitting a digital signal to at least one of the terminal units 221a and 222a of the corresponding communication antenna 200a, or software processed by a processor or the like.
  • the digital signal that can be transmitted by each transmission unit 410a can be a square wave differential signal having a wide band frequency component or a square wave single-ended signal having a wide band frequency component.
  • This digital signal contains a high frequency component of several hundred MHz or more, and more preferably contains a high frequency component of 1 GHz to 5 GHz, but the digital signal is not limited thereto.
  • the transmission speed of the differential signal can be 500 kbps to 1.5 Gbps, but is not limited to this.
  • the transmission speed of the single-ended signal can be set to 500 kbps to 1.5 Gbps, but the transmission speed is not limited to this.
  • the digital signal of the present invention is not limited to the above-mentioned differential signal or single-ended signal.
  • each transmission unit 410a transmits a positive signal of the differential signal to one of the terminal units 221a and 222a of the corresponding communication antenna 200a, and the other terminal unit. It is configured to transmit the negative side signal of the differential signal to.
  • a positive side signal is input from one terminal part, is output from the other terminal part through the antenna main body 210a, and a negative side signal is input from the other terminal part, and the antenna It will be output from one of the terminals through the main body 210a.
  • the electric field strength of the other terminal (input / output terminal) of the communication antenna 200a is used for communication. It becomes stronger than the electric field strength of the antenna body 210a of the antenna 200a.
  • the electrical length of the first communication antenna 200a is such that the positive signal is input from one terminal portion at the time of transmission, passes through the first antenna main body 210a, and reaches the other terminal portion.
  • the distance and the negative side signal are input from the other terminal portion at the time of transmission, and become the respective distances of the distance to reach one terminal portion through the first antenna main body 210a.
  • the electrical length of the second communication antenna 200a is such that the positive signal is input from one terminal portion at the time of transmission and reaches the other terminal portion through the second antenna main body 210a.
  • each transmitting unit 410a is configured to transmit the single-ended signal to any one of the terminal units 221a and 222a of the corresponding communication antenna 200a.
  • a single-ended signal is input from one terminal portion, passes through the antenna main body 210a, and is output from the other terminal portion.
  • the electric field strength of one of the communication antennas 200a (terminals for input and output) is the antenna of the communication antenna 200a.
  • the electrical length of the first communication antenna 200a is such that the single-ended signal is input from one terminal portion at the time of transmission and reaches the other terminal portion through the first antenna main body 210a. Will be the distance.
  • the electrical length of the second communication antenna 200a is such that the positive signal is input from one terminal portion at the time of transmission, passes through the second antenna main body 210a, and reaches the other terminal portion. It becomes the distance of.
  • the plurality of transmission units 410a include at least the first transmission unit 410a and the second transmission unit 410a.
  • the first transmission unit 410a is a transmission unit 410a of any of the above aspects electrically connected to the first terminal units 221a and 222a of the first communication antenna 200a via the conductive line 110a of the substrate 100a.
  • the second transmission unit 410a is a transmission unit 410a of any of the above embodiments electrically connected to the second terminal portions 221a and 222a of the second communication antenna 200a via the conductive line 110a of the substrate 100a.
  • the first transmission unit 410a and the second transmission unit 410a can be configured to transmit digital signals having the same transmission speed.
  • the second transmission unit 410a may be configured to be capable of transmitting a digital signal having a transmission speed slower than the transmission speed of the digital signal transmitted by the first transmission unit 410a.
  • Each restoration unit 420a is electrically connected to the terminal units 221a and 222a of the corresponding communication antenna 200a via the conductive line 110a of the substrate 100a.
  • Each restoration unit 420a receives a received signal induced in the communication antenna 200a by electromagnetically coupling the corresponding communication antenna 200a with the corresponding communication antenna 200b of the module M2 as described above, and uses the received signal as the source. It is composed of a logic circuit such as an IC that can be restored to a digital signal of the above and output, or software processed by a processor or the like.
  • Each restoration unit 420a can be, for example, a comparator circuit having a hysteresis characteristic.
  • the plurality of communication antennas 200a can be used for transmission and reception. If at least one of the plurality of communication antennas 200a is dedicated to transmission, the restoration unit 420a for that amount may be omitted, and if at least one of the plurality of communication antennas 200a is dedicated to reception, the transmission unit 410a for that amount may be omitted. good.
  • the communication circuit unit 400a can be omitted. In this case, it is preferable that the plurality of communication antennas 200a can be electrically connected to the transmission unit and / or the restoration unit of the communication circuit unit outside the module M1 through the substrate 100a.
  • Module M1 may further include at least one charging antenna 500a.
  • At least one charging antenna 500a is arranged so as to be arranged at intervals in the ZZ'direction with respect to at least one charging antenna 500b of the module M2.
  • the at least one charging antenna 500a has a configuration capable of performing at least one of non-contact power transmission and non-contact power reception with at least one charging antenna 500b of the module M2.
  • the at least one charging antenna 500a is a conductor, a metal plate or a coil (see FIG. 2A) provided on the first surface 101a of the substrate 100a, similarly to the communication antenna 200a.
  • At least one charging antenna 500a may be arranged outside the outermost communication antenna 200a, or may be arranged inside the innermost communication antenna 200a.
  • At least one charging antenna 500a can be substantially annular, partially broken substantially annular, arcuate or U-shaped, and the internal dimension of at least one charging antenna 500a is It is larger than the external dimensions of the outermost communication antenna 200a.
  • the at least one charging antenna 500a has an arbitrary shape, but is substantially annular (for example, annular or polygonal ring), partially broken substantially annular (for example, annular or polygonal ring) or omitted. It may be U-shaped, or it may be circular or polygonal.
  • the innermost communication antenna 200a has a substantially annular shape, a substantially annular shape in which a part is broken, or a U-shape, and is arranged on the outside of at least one charging antenna 500a at intervals.
  • the external dimension of at least one charging antenna 500a is smaller than the internal dimension of the innermost communication antenna 200a.
  • the module M1 may further include a charging circuit unit 600a.
  • the charging circuit unit 600a is mounted on the second surface 102a of the substrate 100a.
  • the charging circuit unit 600a is electrically connected to at least one charging antenna 500a through the substrate 100a.
  • the charging circuit unit 600a is at least one of a power transmission circuit unit and a power receiving circuit unit.
  • the power transmission circuit unit converts the power supplied from an external power source (not shown) into power suitable for transmission by an electromagnetic induction method, an electromagnetic field resonance method, an electric field coupling method, or a radio wave method (for example, high frequency power). It may be composed of a logic circuit such as an IC for transmitting power to at least one charging antenna 500a, or software processed by a processor or the like.
  • the power receiving circuit unit may be composed of a logic circuit such as an IC that converts energy (electromagnetic waves or the like) received by at least one charging antenna 500a into electric power, or software processed by a processor or the like.
  • At least one charging antenna 500a and the charging circuit unit 600a only the charging circuit unit 600a can be omitted, and both can be omitted. In the former case, it is preferable that at least one charging antenna 500a can be electrically connected to the charging circuit portion outside the module M1.
  • Module M1 may further include at least one magnetic sheet S.
  • At least one magnetic sheet S is arranged between the first surface 101a of the substrate 100a and at least one charging antenna 500a, and is located between the first surface 101a of the substrate 100a and the plurality of communication antennas 200a. Absent.
  • at least one magnetic sheet S may be arranged only between the first surface 101a of the substrate 100a and at least one charging antenna 500a. In the enlarged view of the ⁇ portion of FIG. 1, the magnetic sheet S has a ring shape like the charging antenna 500a.
  • the presence of at least one magnetic sheet S improves the power supply or power receiving efficiency of at least one charging antenna 500a, while the at least one magnetic sheet S includes the first surface 101a of the substrate 100a and the plurality of communication antennas 200a. Since it is not located between the two, it is unlikely to affect the non-contact communication of the plurality of communication antennas 200a. At least one magnetic sheet S can be omitted.
  • Module M1 further includes a housing 700a.
  • the housing 700a may hold the substrate 100a in a state where the first surface 101a of the substrate 100a faces the Z direction.
  • the housing 700a further has a support recess 710a, and a through hole extending in the ZZ direction is provided at the bottom of the support recess 710a.
  • the outer peripheral portion of the second surface 102a of the substrate 100a is fixed to the peripheral edge portion of the through hole, and the communication circuit portion 400a, or the communication circuit portion 400a and the charging circuit portion 600a are housed in the through hole.
  • the support recess 710a has walls at both ends extending in a direction orthogonal to the ZZ'direction, and a part of the wall surface of the wall (hereinafter, referred to as a recess 711a).
  • a recess 711a a part of the wall surface of the wall
  • the module M2 is supported by the support recesses 710a so as to be rotatable within a predetermined angle range or 360 °.
  • the support recess 710a is a columnar recess corresponding to the outer diameter of the module M2.
  • the module M2 is supported by the support recess 710a so as to be rotatable within a predetermined angle range or 360 °.
  • the housing 700b can rotate within a predetermined angle range or 360 ° with respect to the housing 700a about the virtual rotation axis P.
  • Module M2 includes a housing 700b.
  • the housing 700b is a cylinder or a bottomed cylinder, and is rotatably supported by a support recess 710a of the housing 700a as described above.
  • the housing 700b may be configured to be rotatable within a predetermined angle range or 360 ° with respect to the housing 700a by the actual rotation axis instead of the virtual rotation axis P.
  • the actual axis of rotation may be fixed to the base 100b while penetrating the base 100a and rotatably held by the housing 700a of the module M1, while being fixed to the base 100a. It may penetrate the substrate 100b and be rotatably held by the housing 700b of the module M2.
  • the actual rotating shaft may be made of metal or resin.
  • Module M2 further includes a substrate 100b.
  • the base 100b is fixed to the housing 700b so as to be located on the Z direction side with respect to the base 100a of the module M1.
  • the substrate 100b is in the opposite direction to the substrate 100a in the ZZ'direction. That is, the first surface 101b of the substrate 100b faces the Z'direction side, and the second surface 102b of the substrate 100b faces the Z direction side. Other than this, the substrate 100b has the same configuration as the substrate 100a.
  • 110b in FIG. 4 is a conductive line of the substrate 100b.
  • Module M2 further includes a plurality of communication antennas 200b.
  • the plurality of communication antennas 200b can have the same configuration as the plurality of communication antennas 200a in any of the above embodiments.
  • Each of the antenna bodies 210b of the plurality of communication antennas 200b faces the antenna bodies 210a of the plurality of communication antennas 200a of the module M1 in the ZZ'direction, and the antenna bodies 210b of the plurality of communication antennas 200a and the plurality of communication antennas 200b Each one is arranged to form the coupler.
  • the plurality of antenna bodies 210b and the plurality of antenna bodies 210a can be configured not to face each other in the ZZ'direction.
  • the housing 700b has a cover (not shown) that covers the plurality of communication antennas 200b and / or the housing 700a has a cover (not shown) that covers the plurality of communication antennas 200a.
  • the antenna main body 210b of the plurality of communication antennas 200b and the antenna main body 210a of the plurality of communication antennas 200a are used when or always at a predetermined angle with respect to the module M1.
  • the plurality of communication antennas 200a and the plurality of communication antennas 200b are arranged at intervals in the ZZ'direction so as to form the coupler.
  • the plurality of communication antennas 200b include a first communication antenna 200b and a second communication antenna 200b.
  • the first communication antenna 200b has the same configuration as the first communication antenna 200a of any of the above aspects
  • the second communication antenna 200b has the same configuration as the second communication antenna 200a of any of the above aspects.
  • the antenna body 210b of the first communication antenna 200b is referred to as a first antenna body 210b
  • the pair of terminal portions 221b and 222b of the first communication antenna 200b are referred to as a pair of first terminal portions 221b and 222b.
  • the antenna body 210b of the second communication antenna 200b is referred to as a second antenna body 210b, and the pair of terminal portions 221b and 222b of the second communication antenna 200b are referred to as a pair of second terminal portions 221b and 222b.
  • the first terminal portions 221b and 222b and the second terminal portions 221b and 222b at least the first virtual region and the second virtual region do not overlap each other when viewed from the Z'direction side (in a plan view). (See FIG. 5A).
  • the first terminal portions 221b and 222b and the second terminal portions 221b and 222b are arranged so that the third virtual region and the fourth virtual region do not overlap each other when viewed from the Z'direction side (in a plan view). It may be (see FIG. 5B).
  • the module M2 may further include a communication circuit unit 400b.
  • the communication circuit unit 400b may have at least one of a number of transmission units 410b and a restoration unit 420b corresponding to the number of the plurality of communication antennas 200b.
  • Each transmission unit 410b has the same configuration as each transmission unit 410a of any of the above aspects
  • each restoration unit 420b has the same configuration as each restoration unit 420a of any of the above aspects.
  • the plurality of communication antennas 200b can be used for transmission and reception.
  • the restoration unit 420b for that amount may be omitted, and if at least one of the plurality of communication antennas 200b is dedicated to reception, the transmission unit 410b for that amount may be omitted. good.
  • the communication circuit unit 400b can be omitted in the same manner as the communication circuit unit 400a.
  • the module M2 can be further provided with at least one charging antenna 500b and a charging circuit unit 600b.
  • the at least one charging antenna 500b can have the same configuration as the at least one charging antenna 500a of any of the above aspects, and the charging circuit unit 600b is the same as the charging circuit unit 600a of any of the above aspects. It is possible to have the configuration of. Of the at least one charging antenna 500b and the charging circuit unit 600b, it is possible to omit only the charging circuit unit 600b, or both can be omitted.
  • Module M2 may further include at least one magnetic sheet S. At least one magnetic sheet S of the module M2 has the same configuration as at least one magnetic sheet S of the module M1. It is also possible to omit at least one magnetic sheet S.
  • the positive and negative signals of the differential signal transmitted from the first transmission unit 410a of the module M1 are input to the first terminal units 221a and 222a of the first communication antenna 200a, and pass through the first antenna main body 210a. It is output from 1 terminal part 222a and 221a.
  • the first communication antenna 200a of the module M1 and the first communication antenna 200b of the module M2 perform electromagnetic field coupling, and the coupler (hereinafter, also referred to as the first coupler) is formed between the two antennas. Non-contact communication is performed by the coupler.
  • the positive and negative signals of the differential signal transmitted from the second transmission unit 410a of the module M1 are input to the second terminal units 221a and 222a of the second communication antenna 200a, and the second antenna main body It is output from the second terminal portions 222a and 221a through 210a.
  • the second communication antenna 200a of the module M1 and the second communication antenna 200b of the module M2 perform electromagnetic field coupling, and the coupler (hereinafter, also referred to as a second coupler) is formed between the two antennas, and the second coupler is formed. Non-contact communication is performed by the coupler.
  • the electric field strength of the first terminal portions 221a and 222a to which the positive side signal and the negative side signal of the first communication antenna 200a of the module M1 are input is the first antenna main body of the first communication antenna 200a of the module M1. Stronger than the electric field strength of 210a, the electromagnetic field coupling between the first terminal portions 221a and 222a of the first communication antenna 200a of the module M1 and the first communication antenna 200b of the module M2 is the first of the first communication antenna 200a of the module M1. It is stronger than the electric field coupling between the antenna main body 210a and the first communication antenna 200b of the module M2.
  • the non-contact communication amount of the electromagnetic field coupling portion between the first terminal portions 221a and 222a of the first communication antenna 200a of the module M1 and the first communication antenna 200b of the module M2 is the first of the module M1. It is larger than the non-contact communication amount of the electromagnetic field coupling portion between the first antenna main body 210a of the 1 communication antenna 200a and the first communication antenna 200b of the module M2.
  • the electric field strength of the second terminal portions 221a and 222a to which the positive side signal and the negative side signal of the second communication antenna 200a of the module M1 are input is the second antenna main body of the second communication antenna 200a of the module M1. Stronger than the electric field strength of 210a, the electromagnetic field coupling between the second terminal portions 221a and 222a of the second communication antenna 200a of the module M1 and the second communication antenna 200b of the module M2 is the second communication antenna 200a of the module M1. It is stronger than the electric field coupling between the 2 antenna main body 210a and the second communication antenna 200b of the module M2.
  • the non-contact communication amount of the electromagnetic field coupling portion between the second terminal portions 221a and 222a of the second communication antenna 200a of the module M1 and the second communication antenna 200b of the module M2 is the first of the module M1.
  • the amount of non-contact communication between the second antenna main body 210a of the two-communication antenna 200a and the second communication antenna 200b of the module M2 is larger than the amount of non-contact communication of the electromagnetic field coupling portion.
  • first and second couplers perform non-contact communication at the same time, and the input of the positive signal and the negative signal to the first terminal portions 221a and 222a of the first communication antenna 200a and the second communication antenna It is not necessary that the positive side signal and the negative side signal are input to the second terminal portions 221a and 222a of the 200a at the same time.
  • the single-ended signal transmitted from the first transmission unit 410a of the module M1 is input to the first terminal unit 221a of the first communication antenna 200a, passes through the first antenna main body 210a, and is output from the first terminal unit 222a.
  • the first communication antenna 200a of the module M1 and the first communication antenna 200b of the module M2 perform electromagnetic field coupling, a first coupler is formed between the two antennas, and non-contact communication is performed by the first coupler. ..
  • the single-ended signal transmitted from the second transmission unit 410a of the module M1 is input to the second terminal unit 221a of the second communication antenna 200a, passes through the second antenna main body 210a, and is passed through the second terminal unit 222a.
  • the second communication antenna 200a of the module M1 and the second communication antenna 200b of the module M2 perform electromagnetic field coupling by being output from the two antennas, a second coupler is formed between the two antennas, and the second coupler communicates non-contactly. Is done.
  • the electric field strength of each part of the first communication antenna 200a of the module M1 has the strongest electric field strength of the first terminal part 221a to which the single-ended signal is input (that is, the first terminal part 221a> the first.
  • the strength of the electromagnetic field coupling between each portion of the first communication antenna 200a of the module M1 and the first communication antenna 200b of the module M2 is the first of the first communication antenna 200a.
  • the electric field strength of each part of the second communication antenna 200a of the module M1 has the strongest electric field strength of the first terminal part 221a to which the single-ended signal is input (that is, the second terminal part 221a> the second.
  • the strength of the electromagnetic field coupling between each portion of the second communication antenna 200a of the module M1 and the second communication antenna 200b of the module M2 is the strength of the second communication antenna 200a.
  • first and second couplers perform non-contact communication at the same time, and the input of the single-ended signal to the first terminal portion 221a of the first communication antenna 200a and the second terminal portion of the second communication antenna 200a It is not necessary that the input of the single-ended signal for 221a is performed at the same time.
  • the module M2 rotates with respect to the module M1 within a predetermined angle range or 360 ° around the virtual rotation axis P or the actual rotation axis. It may be performed, or the module M2 may be performed with the rotation stopped with respect to the module M1.
  • Experimental Example 1 has a first module M'(see module M'on the left side of FIG. 7A) and a second module M'(see module M'on the right side of FIG. 7A).
  • the first module M' includes a substrate 100, inner and outer communication antennas 200', which are annular conductors, a transmission unit 410', a restoration unit 420', and first and second coaxial connectors (not shown). ing.
  • the substrate 100 of the first module M' has the same configuration as the substrate 100a except that it is a ring-shaped substrate.
  • the inner and outer communication antennas 200'of the first module M' are conductors formed on the first surface 101 of the substrate 100a, and the centers C of both are aligned to form a concentric and virtual first dividing line. And the virtual second dividing line are arranged around the center C at an angle interval of 0 °.
  • the inner communication antenna 200' has a radius of 10 mm and a width dimension of 2 mm.
  • the outer communication antenna 200' has a radius of 18 mm and a width dimension of 2 mm.
  • the first dividing line is a third virtual line between a pair of virtual virtual half lines L3 extending radially from the center C through the first corner of the outer end of the terminal portions 221' and 222'of the inner communication antenna 200'.
  • the second dividing line halves the fourth virtual area between the virtual half straight lines L4 extending radially from the center C through the first corners of the outer ends of the terminal portions 221'and 222'of the outer communication antenna 200'. It is a virtual line that extends in half.
  • the restoration portion 420'of the first module M' is mounted on the second surface of the substrate 100 and is electrically connected to the pair of terminal portions 221' and 222'of the inner communication antenna 200'. It has the same configuration as the restoration unit 420a.
  • the first coaxial connector of the first module M' is mounted on the second surface of the substrate 100 and is electrically connected to the restoration unit 420'.
  • the first coaxial connector is connected to the high-speed signal oscilloscope 21. In this way, the restoration unit 420'is electrically connected to the oscilloscope 21 via the substrate 100 and the first coaxial connector.
  • the transmitter 410'of the first module M' is mounted on the second surface of the substrate 100 and is electrically connected to the pair of terminal portions 221' and 222'of the outer communication antenna 200'. It has the same configuration as the transmitter 410a.
  • the second coaxial connector of the first module M' is mounted on the second surface of the substrate 100 and is electrically connected to the transmitter 410'. In this way, the transmitter 410'is electrically connected to the signal transmitter 11 via the substrate 100 and the second coaxial connector.
  • the second module M'of Experimental Example 1 has the same configuration as the first module M', except that it differs in the following points.
  • the transmission unit 410'of the second module M' is electrically connected to a pair of terminal units 221' and 222'of the inner communication antenna 200'of the second module M'.
  • the first coaxial connector of the second module M' is electrically connected to the transmitter 410' of the second module M'.
  • the first coaxial connector of the second module M' is connected to the signal transmitter 12. In this way, the transmitter 410'of the second module M'is electrically connected to the signal transmitter 12 via the substrate 100 and the first coaxial connector.
  • the restoration unit 420'of the second module M' is electrically connected to a pair of terminal units 221' and 222'of the outer communication antenna 200'of the second module M'.
  • the second coaxial connector of the second module M' is electrically connected to the restoration unit 420'of the second module M'.
  • the second coaxial connector of the second module M' is connected to the high-speed signal oscilloscope 22. In this way, the restoration unit 420'of the second module M'is electrically connected to the oscilloscope 22 via the substrate 100 and the second coaxial connector.
  • the distance from the inner communication antenna 200'of the first module M'to the inner communication antenna 200' of the second module M'in the ZZ direction is 3.5 mm, and the outer communication antenna 200'of the first module M'.
  • the distance from the second module M'to the outer communication antenna 200'in the ZZ'direction is 3.5 mm.
  • this configuration is also referred to as a prerequisite configuration of Experimental Example 1.
  • Experimental Example 2 has a first module M'' (see the module M'' on the left side of FIG. 7C) and a second module M'' (see the module M'' on the right side of FIG. 7C). ..
  • the first module M'' includes a substrate 100, inner and outer communication antennas 200'', a transmitting unit 410'', a restoring unit 420'', and first and second coaxial connectors (not shown). ..
  • the base 100 of the first module M ′′ has the same configuration as the base 100 of the first module M ′′.
  • the inner and outer communication antennas 200 ′′ of the first module M ′′ have an angular interval of 180 ° around the center C between the virtual first dividing line and the virtual second dividing line. It has the same configuration as the inner and outer communication antennas 200'of the first module M', except that they are arranged in such a manner.
  • the restoration portion 420'' of the first module M'' is mounted on the second surface of the substrate 100 and is electrically connected to the pair of terminal portions 221'' and 222'' of the inner communication antenna 200''. It has the same configuration as the restoration unit 420a except that it is.
  • the first coaxial connector of the first module M ′′ is mounted on the second surface of the substrate 100 and is electrically connected to the restoration unit 420 ′′.
  • the first coaxial connector is connected to the high-speed signal oscilloscope 23. In this way, the restoration unit 420 ′′ of the first module M ′′ is electrically connected to the oscilloscope 23 via the substrate 100 and the first coaxial connector.
  • the transmission section 410'' of the first module M'' is mounted on the second surface of the substrate 100 and is electrically connected to the pair of terminal sections 221'' and 222'' of the outer communication antenna 200''.
  • the configuration is the same as that of the transmission unit 410a except that the transmission unit 410a is used.
  • the second coaxial connector of the first module M ′′ is mounted on the second surface of the substrate 100 and is electrically connected to the transmission unit 410 ′′. In this way, the transmission unit 410 ′′ of the first module M ′′ is electrically connected to the signal transmitter 13 via the substrate 100 and the second coaxial connector.
  • the second module M ′′ of Experimental Example 2 has the same configuration as the first module M ′′ except that it differs in the following points.
  • the transmission unit 410 ′′ of the second module M ′′ is electrically connected to a pair of terminal units 221 ′′ and 222 ′′ of the inner communication antenna 200 ′′ of the second module M ′′.
  • the first coaxial connector of the second module M ′′ is electrically connected to the transmission unit 410 ′′ of the second module M ′′.
  • the first coaxial connector of the second module M ′′ is connected to the signal transmitter 14. In this way, the transmission unit 410 ′′ of the second module M ′′ is electrically connected to the signal transmitter 14 via the substrate 100 and the first coaxial connector.
  • the restoration unit 420 ′′ of the second module M ′′ is electrically connected to a pair of terminal units 221 ′′ and 222 ′′ of the outer communication antenna 200 ′′ of the second module M ′′.
  • the second coaxial connector of the second module M ′′ is electrically connected to the restoration unit 420 ′′ of the second module M ′′.
  • the second coaxial connector of the second module M ′′ is connected to the high-speed signal oscilloscope 24. In this way, the restoration unit 420 ′′ of the second module M ′′ is electrically connected to the oscilloscope 24 via the substrate 100 and the second coaxial connector.
  • the inner communication antenna 200'' of the first module M'' and the inner communication antenna 200'' of the second module M'' face each other in the ZZ'direction, and the outer communication of the first module M''
  • the first and second modules M'' are fixed in a state where the antenna 200'' and the outer communication antenna 200'' of the second module M'' face each other in the ZZ'direction. Since the position is fixed, the first module M ′′ does not rotate with respect to the second module M ′′.
  • a pair of terminal portions 221 “" and 222 "of the inner communication antenna 200" of the first module M and a pair of terminal portions 221" "222" of the inner communication antenna 200 "of the second module M".
  • the distance from the inner communication antenna 200'' of the first module M'' to the inner communication antenna 200'' of the second module M'' in the ZZ'direction is 3.5 mm, and the distance of the first module M'' The distance from the outer communication antenna 200'' to the outer communication antenna 200'' of the second module M'' in the ZZ'direction is 3.5 mm.
  • this configuration is also referred to as a prerequisite configuration of Experimental Example 2.
  • a differential signal is input from the signal transmitter 12 to the transmitter 410'of the second module M'via the first coaxial connector of the second module M'.
  • the signal is converted into a digital signal for non-contact communication by the transmission unit 410'of the second module M'.
  • This digital signal is a differential signal having a transmission speed of 1.0 Gbps.
  • This digital signal is input to the terminal portions 221' and 222'of the inner communication antenna 200'of the second module M', and thereby the inside of the inner communication antenna 200'and the first module M'of the second module M'.
  • the communication antenna 200' consists with the first coupler.
  • the differential signal is input from the signal transmitter 11 to the transmission unit 410'of the first module M'via the second coaxial connector of the first module M'.
  • the signal is converted into a digital signal for non-contact communication by the transmission unit 410'of the first module M'.
  • This digital signal is a differential signal having a transmission speed of 0.8 Gbps.
  • This digital signal is input to the terminal portions 221' and 222'of the outer communication antenna 200'of the first module M', whereby the outer communication antenna 200'of the first module M'and the outside of the second module M'are input.
  • the communication antenna 200' consists with the second coupler.
  • the signal induced in the inner communication antenna 200'of the first module M'by the first coupler is the restoration part from the terminal portion 222', 221'of the inner communication antenna 200'of the first module M'to the first module M'. Entered in 420'.
  • the induced signal is restored to the original digital signal by the restoration unit 420'of the first module M'.
  • This restored digital signal is input to the oscilloscope 21.
  • the signal induced in the outer communication antenna 200'of the second module M'by the second coupler is transmitted from the terminal portions 222', 221'to the second module M'of the outer communication antenna 200'of the second module M'. It is input to the restoration unit 420'of.
  • the induced signal is restored to the original digital signal by the restoration unit 420'of the second module M'. This restored digital signal is input to the oscilloscope 22.
  • a differential signal is input from the signal transmitter 14 to the transmitter 410 ′′ of the second module M ′′ via the first coaxial connector of the second module M ′′.
  • the signal is converted into a digital signal for non-contact communication by the transmission unit 410 ′′ of the second module M ′′.
  • This digital signal is a differential signal having a transmission speed of 1.0 Gbps.
  • This digital signal is input to the terminal portions 221'' and 222'' of the inner communication antenna 200'' of the second module M'', whereby the inner communication antenna 200'' and the second module of the second module M''
  • the inner communication antenna 200'' of the 1 module M'' constitutes the first coupler.
  • the differential signal is input from the signal transmitter 13 to the transmission unit 410 ′′ of the first module M ′′ via the second coaxial connector of the first module M ′′.
  • the signal is converted into a digital signal for non-contact communication by the transmission unit 410 ′′ of the first module M ′′.
  • This digital signal is a differential signal having a transmission speed of 0.8 Gbps.
  • This digital signal is input to the terminal portions 221'' and 222'' of the outer communication antenna 200'' of the first module M'', whereby the outer communication antenna 200'' of the first module M'' and the first The outer communication antenna 200'' of the 2 module M'' constitutes the second coupler.
  • the signal induced in the inner communication antenna 200'' of the first module M'' by the first coupler is the first from the terminal portion 222'', 221'' of the inner communication antenna 200'' of the first module M''. It is input to the restoration unit 420'' of the module M''. The induced signal is restored to the original digital signal by the restoration unit 420 ′′ of the first module M ′′. This restored digital signal is input to the oscilloscope 23.
  • the signal induced in the outer communication antenna 200'' of the second module M'' by the second coupler is the terminal portion 222'', 221'' of the outer communication antenna 200'' of the second module M''. Is input to the restoration unit 420'' of the second module M''. The induced signal is restored to the original digital signal by the restoration unit 420 ′′ of the second module M ′′. This restored digital signal is input to the oscilloscope 24.
  • first simulation and the second simulation were performed using the circuit simulator.
  • the first simulation was performed as follows using the premise configuration of Experimental Example 1 described above.
  • a differential digital signal is input from the transmitter 410'of the second module M'to the inner communication antenna 200' of the second module M', and inside the inner communication antenna 200'and the first module M'of the second module M'.
  • a digital signal is input from the transmission unit 410' of the first module M'to the outer communication antenna 200' of the first module M', and the first module M'
  • a second coupler is formed by the outer communication antenna 200'and the outer communication antenna 200'of the second module M'.
  • the signal induced in the inner communication antenna 200'of the first module M'by the first coupler is restored to the original digital signal by the restoration unit 420'of the first module M', and the restored digital signal is from 100 MHz to 100 MHz.
  • the signal induced in the outer communication antenna 200'of the second module M'by the second coupler is restored to the original digital signal by the restoration unit 420'of the second module M'.
  • the frequency characteristics of the restored digital signal from 100 MHz to 10 GHz were obtained.
  • the second simulation was performed by setting various conditions as follows using the premise configuration of Experimental Example 2 described above.
  • a differential digital signal is input from the transmitter 410'' of the second module M'' to the inner communication antenna 200'' of the second module M'', and the inner communication antenna 200'' and the second module M'' of the second module M''.
  • the first coupler is configured with the inner communication antenna 200'' of the 1 module M'', and at the same time, from the transmitter 410'' of the first module M'' to the outer communication antenna 200'' of the second module M''.
  • a digital signal is input, and the outer communication antenna 200 ′′ of the first module M ′′ and the outer communication antenna 200 ′′ of the second module M ′′ form a second coupler.
  • the signal induced in the inner communication antenna 200'' of the first module M'' by the first coupler is restored to the original digital signal by the restoration unit 420'' of the first module M'', and this restored digital While obtaining the frequency characteristics of the signal from 100 MHz to 10 GHz, the signal induced in the outer communication antenna 200 ′′ of the second module M ′′ by the second coupler is generated by the restoration unit 420 ′′ of the second module M ′′. It was restored to the digital signal of the above, and the frequency characteristics of 100 MHz to 10 GHz of this restored digital signal were obtained.
  • S paradata regarding the inner communication antenna 200'' of the first module M'' is obtained from the frequency characteristics of the former digital signal described above, and the second module is obtained from the frequency characteristics of the latter digital signal described above.
  • S paradata regarding the outer communication antenna 200'' of M'' was obtained.
  • the S-parameters for the inner communication antenna 200 ′′ of the first module M ′′ are shown in FIG. 11A, and the S-parameters for the outer communication antenna 200 ′′ of the second module M ′′ are shown in FIG. 11B.
  • the upper limit of the X-axis is set to 5 GHz in order to make the graph easier to see.
  • the S paradata relating to the inner communication antenna 200'of the first module M'shown in FIG. 9A passes between the inner communication antenna 200'of the first module M'and the inner communication antenna 200' of the second module M'. It includes characteristics and a first noise from the outer communication antenna 200'on the substrate 100 of the first module M'to the inner communication antenna 200' on the substrate 100 of the first module M'.
  • the communication characteristics are shown by solid lines, and the first noise is shown by broken lines. It can be seen that the first noise exceeds -50db around 0.6GHz, then gradually increases to -42db around 2GHz, and remains flat from around 2GHz to 5GHz.
  • the S paradata regarding the inner communication antenna 200'' of the first module M'' shown in FIG. 11A is that of the inner communication antenna 200'' and the second module M'' of the first module M''. Passing characteristics between the inner communication antenna 200'' and the outer communication antenna 200'' on the base 100 of the first module M'' to the inner communication antenna 200'' on the base 100 of the first module M'' Contains the first noise of.
  • the communication characteristics are shown by solid lines, and the first noise is shown by broken lines.
  • the first noise exceeds -50db around 0.6GHz, then gradually increases to -42db around 2GHz, but gradually decreases from around 2GHz to around 4GHz, and falls below -50db around 4GHz. Be taken care of.
  • the second simulation the result that the first noise is reduced as compared with the first simulation was obtained.
  • the S paradata relating to the outer communication antenna 200'of the second module M'shown in FIG. 9B passes between the outer communication antenna 200'of the second module M'and the outer communication antenna 200' of the first module M'. It includes characteristics and a second noise from the inner communication antenna 200'on the substrate 100 of the second module M'to the outer communication antenna 200' on the substrate 100 of the second module M'.
  • the communication characteristics are shown by the solid line, and the second noise is shown by the alternate long and short dash line.
  • the second noise exceeds -50db around 0.6GHz, then gradually increases to -42db around 2GHz, and it can be seen that the noise is leveling off from around 2GHz to 5GHz.
  • the S paradata regarding the outer communication antenna 200 ′′ of the second module M'' shown in FIG. 11B is the outer communication antenna 200 ′′ of the second module M ′′ and the first module M ′′. Passing characteristics between the outer communication antenna 200'' and the inner communication antenna 200'' on the base 100 of the second module M'' to the outer communication antenna 200'' on the base 100 of the second module M'' It contains the second noise of.
  • the communication characteristics are shown by the solid line, and the second noise is shown by the alternate long and short dash line.
  • the second noise exceeds -50db around 0.6GHz, then gradually increases to -42db around 2GHz, but gradually decreases from around 2GHz to around 4GHz, and falls below -50db around 4GHz. Be taken care of. As described above, in the second simulation, the result that the second noise is reduced as compared with the first simulation was obtained.
  • Non-contact communication is preferably performed simultaneously between the first communication antenna 200a of the module M1 and the first communication antenna 200b of the module M2 and between the second communication antenna 200a of the module M1 and the second communication antenna 200b of the module M2. be able to. The reason is as follows.
  • the first terminal portion 221a of the first communication antenna 200a by not overlapping or by preventing the third virtual area and the fourth virtual area from overlapping each other when viewed from the Z direction side (in a plan view),
  • the 222a can be arranged away from the second terminal portions 221a and 222a of the second communication antenna 200a. Therefore, when the positive side signal and the negative side signal of the differential signal are input to the first terminal portions 221a and 222a of the first communication antenna 200a, the noise generated from the first terminal portion 221a and / or 222a is generated by the module.
  • the electromagnetic field coupling is strong between the second terminal portions 221a and 222a of the second communication antenna 200a of the module M1 and the second communication antenna 200b of the module M2 as described above, this portion is not present.
  • the non-contact communication can be suitably performed, and the first terminal portions 221a and 222a of the first communication antenna 200a of the module M1 and the first communication antenna 200b of the module M2 can be performed.
  • the electromagnetic field coupling is strong, the non-contact communication can be preferably performed by reducing the interference of noise with respect to the non-contact communication of the portion.
  • the noise generated from the first terminal portion 221a of the first communication antenna 200a is generated by the second communication antenna 200a of the module M1.
  • the second communication antenna 200a of the module M1 By interfering with non-contact communication between the second terminal portion 221a and 222a of the module M2 and the second communication antenna 200b of the module M2, or by inputting a single-ended signal to the first terminal portion 221a of the second communication antenna 200a.
  • Noise generated from the second terminal portion 221a may interfere with non-contact communication between the first terminal portions 221a and 222a of the first communication antenna 200a of the module M1 and the first communication antenna 200b of the module M2. The property is reduced.
  • the electromagnetic field coupling is strong between the second terminal portion 221a of the second communication antenna 200a of the module M1 and the second communication antenna 200b of the module M2 as described above, non-contact communication of the portion is performed.
  • the non-contact communication can be suitably performed, and also between the first terminal portion 221a of the first communication antenna 200a of the module M1 and the first communication antenna 200b of the module M2.
  • the portion since the portion has a strong electromagnetic field coupling, the non-contact communication can be preferably performed by reducing the interference of noise with respect to the non-contact communication of the portion.
  • the second communication antenna 200a when the second communication antenna 200a is arranged outside the first communication antenna 200a and the area of the second communication antenna 200a is larger than the area of the first communication antenna 200a, the second communication antenna 200a
  • the electric length of the first communication antenna 200a is longer than the electric length of the first communication antenna 200a.
  • the first communication antenna 200a and the second communication antenna The 200a can preferably be used for non-contact communication at different communication speeds at the same time.
  • the width dimension W of the first communication antenna 200a is larger than the width dimension W of the second communication antenna 200a, the area of the first communication antenna 200a increases, so that the electric length of the first communication antenna 200a is changed to the second communication. It can be substantially the same as or close to the electrical length of the antenna 200a.
  • the first communication antenna 200a and the second communication antenna 200a may be used for non-contact communication at different communication speeds at the same time, or non-contact communication may be performed at the same communication speed.
  • module M2 has the same technical features and effects as the module M1.
  • the first antenna module M1' (hereinafter, also simply referred to as a module M1') and the second antenna module M2'(hereinafter, simply a module) of the electronic device D'according to a plurality of examples including the second embodiment of the present invention. (Also referred to as M2') will be described with reference to FIG. FIG. 12 shows the module M1'and the module M2'of the second embodiment.
  • Module M1' has the same configuration as module M1 in any of the above modes, except for the following differences. Therefore, only the difference will be described in detail, and the description overlapping with the module M1 will be omitted.
  • the plurality of communication antennas 200a of the module M1 of the first embodiment include the innermost communication antenna 200a, the outermost communication antenna 200a, and the intermediate communication antenna 200a in the plurality of communication antennas 200a of the module M1'. Is different from.
  • the innermost communication antenna 200a is located on the innermost side of the plurality of communication antennas 200a, and the outermost communication antenna 200a is located on the outermost side of the plurality of communication antennas 200a.
  • the intermediate communication antenna 200a is located between the innermost communication antenna 200a and the outermost communication antenna 200a, and is adjacent to the innermost communication antenna 200a and the outermost communication antenna 200a, respectively.
  • the plurality of communication antennas 200a have at least one of the following configurations (1) and (2).
  • the innermost communication antenna 200a corresponds to the first communication antenna 200a of any of the above aspects
  • the intermediate communication antenna 200a corresponds to the second communication antenna 200a of any of the above aspects.
  • the first virtual area and the second virtual area do not overlap each other when viewed from the Z direction side (in a plan view), or the third virtual area and the fourth virtual area are viewed from the Z direction side.
  • the terminal portions 221a and 222a of the innermost communication antenna 200a and the terminal portions 221a and 222a of the intermediate communication antenna 200a are arranged so as not to overlap each other when viewed (in a plan view). In FIG.
  • the terminal portions 221a and 222a of the innermost communication antenna 200a and the terminal portions 221a and 222a of the intermediate communication antenna 200a form a first virtual region from the center C of the antenna body 210a of the innermost communication antenna 200a.
  • the virtual first dividing line extending in half and the virtual second dividing line extending from the center C in half so as to divide the second virtual area in half have an angular interval of approximately 120 ° around the center C. It is arranged so that it is located at.
  • the intermediate communication antenna 200a corresponds to the first communication antenna 200a of any of the above aspects
  • the outermost communication antenna 200a corresponds to the second communication antenna 200a of any of the above aspects.
  • the first virtual area and the second virtual area do not overlap each other when viewed from the Z direction side (in a plan view), or the third virtual area and the fourth virtual area are viewed from the Z direction side.
  • the terminal portions 221a and 222a of the intermediate communication antenna 200a and the terminal portions 221a and 222a of the outermost communication antenna 200a are arranged so as not to overlap each other when viewed (in a plan view). In FIG.
  • the terminal portions 221a and 222a of the intermediate communication antenna 200a and the terminal portions 221a and 222a of the outermost communication antenna 200a are virtual first virtual areas extending from the center C so as to divide the first virtual area in half.
  • the first dividing line and the virtual second dividing line extending from the center C so as to divide the second virtual area in half are arranged so as to be located around the center C at an angular interval of approximately 120 °. ..
  • the plurality of communication antennas 200a may include at least one third communication antenna 200a.
  • the at least one third communication antenna is an antenna that does not correspond to the first and second communication antennas 200a of the plurality of communication antennas 200a, and includes one of the plurality of communication antennas 200b of the module M2'and the coupler. Any configuration can be configured and non-contact communication is possible.
  • the module M2' has the same configuration as the module M2 in any of the above modes except for the following differences.
  • the plurality of communication antennas 200b of the module M2 of the first embodiment include the innermost communication antenna 200b, the outermost communication antenna 200b, and the intermediate communication antenna 200b in the plurality of communication antennas 200b of the module M2'. Is different from.
  • the innermost communication antenna 200b, the outermost communication antenna 200b, and the intermediate communication antenna 200b have the same configurations as the innermost communication antenna 200a, the outermost communication antenna 200b, and the intermediate communication antenna 200b in any of the above embodiments. It is good to say.
  • the module M1'and the module M2' as described above exhibit the same technical features and effects as the module M1 and the module M2.
  • the first antenna module M1 ′′ (hereinafter, also simply referred to as module M1 ′′) and the second antenna module M2 ′′ (hereinafter, also simply referred to as module M1 ′′) of the electronic device D ′′ according to a plurality of examples including the third embodiment of the present invention.
  • the module M2 ′′ will be described with reference to FIG.
  • FIG. 13 shows the module M1 ′′ and the module M2 ′′ of the third embodiment.
  • the module M1 ′′ has the same configuration as the module M1 in any of the above modes except for the following differences. Therefore, only the difference will be described in detail, and the description overlapping with the module M1 will be omitted.
  • a plurality of the module M1 of the first embodiment in that the plurality of communication antennas 200a of the module M1'' include the innermost communication antenna 200a, the outermost communication antenna 200a, and the plurality of intermediate communication antennas 200a. It is different from the communication antenna 200a.
  • the plurality of communication antennas 200a have at least one of the following configurations (1) to (3).
  • the innermost communication antenna 200a is the first communication antenna 200a of any of the above embodiments, and the innermost communication antenna 200a among the plurality of intermediate communication antennas 200a (the innermost middle communication antenna 200a). ) Corresponds to the second communication antenna 200a of any of the above aspects.
  • the first virtual area and the second virtual area do not overlap each other when viewed from the Z direction side (in a plan view), or the third virtual area and the fourth virtual area are viewed from the Z direction side.
  • the terminal portions 221a and 222a of the innermost communication antenna 200a and the terminal portions 221a and 222a of the innermost communication antenna 200a are arranged so as not to overlap each other when viewed (in a plan view). In FIG.
  • the terminal portions 221a and 222a of the innermost communication antenna 200a and the terminal portions 221a and 222a of the innermost communication antenna 200a are first from the center C of the antenna body 210a of the innermost communication antenna 200a.
  • the virtual first dividing line extending so as to divide the virtual area in half and the virtual second dividing line extending from the center C so as to divide the second virtual area in half are approximately 90 ° around the center C. They are arranged so that they are located at the angular intervals of.
  • the inner communication antenna 200a (inner intermediate communication antenna) of the adjacent intermediate communication antenna 200a is outside the first communication antenna 200a of any of the above embodiments.
  • the communication antenna 200a (the outer intermediate communication antenna) corresponds to the second communication antenna 200a of any of the above aspects.
  • the first virtual area and the second virtual area do not overlap each other when viewed from the Z direction side (in a plan view), or the third virtual area and the fourth virtual area are viewed from the Z direction side.
  • the terminal portions 221a and 222a of the inner intermediate communication antenna 200a and the terminal portions 221a and 222a of the outer intermediate communication antenna 200a are arranged so as not to overlap each other when viewed (in a plan view). In FIG.
  • the terminal portions 221a and 222a of the inner intermediate communication antenna 200a and the terminal portions 221a and 222a of the outer intermediate communication antenna 200a extend from the center C so as to divide the first virtual area in half.
  • the virtual first dividing line and the virtual second dividing line extending from the center C so as to divide the second virtual area in half are arranged so as to be located around the center C at an angular interval of approximately 90 °. Has been done.
  • the outermost communication antenna 200a (outermost intermediate communication antenna) of the plurality of intermediate communication antennas 200a is attached to the first communication antenna 200a of any of the above embodiments, and the outermost communication antenna 200a is used.
  • the first virtual area and the second virtual area do not overlap each other when viewed from the Z direction side (in a plan view), or the third virtual area and the fourth virtual area are viewed from the Z direction side.
  • the terminal portions 221a and 222a of the outermost intermediate communication antenna 200a and the terminal portions 221a and 222a of the outermost communication antenna 200a are arranged so as not to overlap each other when viewed (in a plan view). In FIG.
  • the terminal portions 221a and 222a of the outermost intermediate communication antenna 200a and the terminal portions 221a and 222a of the outermost communication antenna 200a extend from the center C so as to divide the first virtual area in half.
  • the virtual first dividing line and the virtual second dividing line extending from the center C so as to divide the second virtual area in half are arranged so as to be located around the center C at an angular interval of approximately 90 °. Has been done.
  • the plurality of communication antennas 200a may include at least one third communication antenna 200a. ..
  • the module M2 ′′ has the same configuration as the module M2 in any of the above modes except for the following differences.
  • a plurality of the module M2 of the first embodiment in that the plurality of communication antennas 200b of the module M2'' include the innermost communication antenna 200b, the outermost communication antenna 200b, and the plurality of intermediate communication antennas 200b. It is different from the communication antenna 200b.
  • the innermost communication antenna 200b, the outermost communication antenna 200b, and the plurality of intermediate communication antennas 200b are the innermost communication antenna 200a, the outermost communication antenna 200b, and the plurality of intermediate communication antennas 200b in any of the above embodiments. It is good to have the same configuration as.
  • the module M1 ′′ and the module M2 ′′ as described above exhibit the same technical features and effects as the module M1 and the module M2.
  • the second antenna module of any of the above aspects may be non-rotatably supported by the first antenna module of any of the above aspects.
  • the electronic device of the present invention can be configured to include only one of the first and second antenna modules of any of the above aspects.
  • the other party communication device may form a coupler with a plurality of communication antennas of one module and include a plurality of communication antennas capable of non-contact communication.
  • the first and second communication antennas of the present invention are concentrically provided on the first surface of the substrate, but the present invention is not limited to this.
  • the first and second communication antennas of the present invention are made of a metal plate or a coil
  • the first and second terminal portions thereof are supported by a substrate
  • the first and second antenna bodies are arranged in a hollow manner.
  • a part of the first and second antennas may be supported by the substrate, and a part other than the part of the first and second communication antennas may be arranged hollowly.
  • the first and second communication antennas of the present invention may be arranged at different height positions in the ZZ'direction.
  • the first and second communication antennas of the present invention are configured to be electromagnetically coupled to the other party's first and second communication antennas, but the present invention is not limited to this.
  • the first and second communication antennas of the present invention may be configured so as to be magnetically coupled to each other's first and second communication antennas.
  • the distance from the first communication antenna to the second communication antenna (communication distance for non-contact communication) at the time of magnetic field coupling may be a short distance of about 0 mm to several mm, but is not limited to this. ..
  • the housing of the module M1 and / or the module M2 of the present invention can be omitted.
  • the materials, shapes, dimensions, numbers, arrangements, etc. that constitute each component of the electronic device and the module in each aspect of the above embodiment and the design modification are described as examples, and the same functions are realized. It is possible to change the design as much as possible.
  • Each aspect of the above-described embodiment and the design modification example can be combined with each other as long as they do not contradict each other.
  • the ZZ'direction of the present invention can be arbitrarily changed as long as it passes through at least one center of the plurality of communication antennas and is orthogonal to the arrangement direction of the plurality of communication antennas.
  • D, D', D'' Electronic equipment M1, M2, M1', M2'M1'', M2'': 1st and 2nd antenna modules (modules) 100a, 100b: Substrate 101a, 101b: First surface 102a, 102b: Second surface 200a, 200b: Communication antenna (including first and second communication antennas) 210a, 210b: Antenna body 221a, 221b, 222a, 222b: Terminal part C: Center 300a, 300b: Ground conductor 400a, 400b: Communication circuit part 410a, 410b: Transmission part (including the first and second transmission parts) 420a, 420b: Restoration part 500a, 500b: Charging antenna 600a, 600b: Charging circuit part 700a, 700b: Housing S: Magnetic sheet P: Rotating shaft

Abstract

[Problème] La présente invention permet une communication sans contact appropriée et simultanée au moyen d'une pluralité d'antennes de communication. [Configuration] Un module M1 est pourvu d'une première antenne, d'une seconde antenne de communication 200a qui sont agencées de façon sensiblement concentrique. Un signal numérique peut être entré dans au moins l'une des parties terminales 221a, 222a de chacune de la première antenne, et de la seconde antenne de communication 200a. Les parties terminales 221a, 222a de la première antenne de communication 200a et les parties terminales 221a, 222a de la seconde antenne de communication 200a sont agencées de sorte qu'une première région virtuelle entre une paire de premières demi-lignes virtuelles qui s'étendent radialement, depuis un centre C de la première antenne de communication 200a en faisant passer au moins une partie des extrémités internes des parties terminales 221a, 222a de la première antenne de communication 200a, et qu'une seconde région virtuelle entre une paire de secondes demi-lignes virtuelles qui s'étendent, depuis le centre C de la première ou de la seconde antenne de communication 200a en faisant passer au moins une partie des extrémités internes des parties terminales 221a, 222a de la seconde antenne de communication 200a ne se chevauchent pas l'une avec l'autre dans une vue en plan.
PCT/JP2020/028912 2019-07-29 2020-07-28 Module d'antenne, dispositif électronique, et procédé de communication sans contact WO2021020397A1 (fr)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09171541A (ja) * 1995-12-19 1997-06-30 Tokimec Inc 通信装置
JP2004364199A (ja) * 2003-06-06 2004-12-24 Sony Corp アンテナモジュール及びこれを備えた携帯型通信端末
JP2012019302A (ja) * 2010-07-07 2012-01-26 Nec Tokin Corp アンテナモジュール及び非接触電力伝送装置
JP2013084915A (ja) * 2011-10-12 2013-05-09 Tdk Taiwan Corp 近距離無線通信と無線充電共用の感応モジュール
JP2013157917A (ja) * 2012-01-31 2013-08-15 Panasonic Corp コイル装置及び携帯無線端末
WO2015129598A1 (fr) * 2014-02-27 2015-09-03 株式会社村田製作所 Élément de bobine stratifié et module de communication sans fil
JP2016100872A (ja) * 2014-11-26 2016-05-30 パナソニックＩｐマネジメント株式会社 信号結合器
WO2017188172A1 (fr) * 2016-04-25 2017-11-02 国立大学法人電気通信大学 Dispositif de communication sans fil et dispositif d'antenne

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09171541A (ja) * 1995-12-19 1997-06-30 Tokimec Inc 通信装置
JP2004364199A (ja) * 2003-06-06 2004-12-24 Sony Corp アンテナモジュール及びこれを備えた携帯型通信端末
JP2012019302A (ja) * 2010-07-07 2012-01-26 Nec Tokin Corp アンテナモジュール及び非接触電力伝送装置
JP2013084915A (ja) * 2011-10-12 2013-05-09 Tdk Taiwan Corp 近距離無線通信と無線充電共用の感応モジュール
JP2013157917A (ja) * 2012-01-31 2013-08-15 Panasonic Corp コイル装置及び携帯無線端末
WO2015129598A1 (fr) * 2014-02-27 2015-09-03 株式会社村田製作所 Élément de bobine stratifié et module de communication sans fil
JP2016100872A (ja) * 2014-11-26 2016-05-30 パナソニックＩｐマネジメント株式会社 信号結合器
WO2017188172A1 (fr) * 2016-04-25 2017-11-02 国立大学法人電気通信大学 Dispositif de communication sans fil et dispositif d'antenne

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