WO2017018069A1 - Dispositif d'antennes - Google Patents

Dispositif d'antennes Download PDF

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Publication number
WO2017018069A1
WO2017018069A1 PCT/JP2016/067132 JP2016067132W WO2017018069A1 WO 2017018069 A1 WO2017018069 A1 WO 2017018069A1 JP 2016067132 W JP2016067132 W JP 2016067132W WO 2017018069 A1 WO2017018069 A1 WO 2017018069A1
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WO
WIPO (PCT)
Prior art keywords
substrate
frequency
antenna
ground
fed
Prior art date
Application number
PCT/JP2016/067132
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English (en)
Japanese (ja)
Inventor
祐 高山
弘泰 末竹
武部　裕幸
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シャープ株式会社
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Priority to JP2017531070A priority Critical patent/JP6385583B2/ja
Publication of WO2017018069A1 publication Critical patent/WO2017018069A1/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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • 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
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way

Definitions

  • the present invention relates to an antenna device including a plurality of antennas.
  • Patent Document 1 discloses a wireless data communication module including a minute antenna, an MSA (microstrip antenna), and a module substrate having a GND pattern.
  • a current mainly contributing to radiation by the minute antenna flows in the longitudinal direction of the GND pattern.
  • the plane on which the MSA is configured is arranged in parallel with the module substrate. Further, the MSA is formed so as to resonate in the width direction orthogonal to the longitudinal direction of the module substrate. As described above, the resonance direction by the minute antenna is orthogonal to the resonance direction by the MSA.
  • Japanese Patent Publication Japanese Patent Laid-Open No. 2012-75021 (published on April 12, 2012)”
  • the current flowing through the GND pattern along with radiation by the minute antenna flows in directions other than the longitudinal direction of the GND pattern, which is the main direction. That is, since a current flows in a direction not orthogonal to the resonance direction of the MSA, there is a problem that the micro antenna and the MSA interfere with each other.
  • the present invention has been made in view of the above problems, and a main object of the present invention is to provide a technique capable of reducing mutual interference between a plurality of antennas in an antenna device including a plurality of antennas as compared with the conventional art. To do.
  • an antenna device includes a first substrate having a ground conductor, a first antenna fed from the first substrate, and a first substrate having a ground conductor. 2 substrate and a second antenna fed from the second substrate, and an angle formed between the main surface of the first substrate and the main surface of the second substrate is a right angle.
  • the main direction of the high-frequency current that is arranged and flows through the ground conductor of the first substrate when the first antenna is fed is the first direction parallel to the perpendicular of the main surface of the second substrate.
  • an antenna device includes a first substrate having a ground conductor, a first antenna fed from the first substrate, and a ground conductor. And a second antenna fed from the second substrate, and an angle formed between the main surface of the first substrate and the main surface of the second substrate is a right angle.
  • the first antenna and the second antenna resonate at a first frequency and a second frequency that is higher than the first frequency, respectively, and the first antenna is
  • the main direction of the high-frequency current flowing through the ground conductor of the first substrate when power is supplied at the first frequency is the first direction parallel to the perpendicular to the main surface of the second substrate, and the second The second substrate when the antenna is fed at the second frequency
  • the main direction of the high-frequency current flowing through the ground conductor is a second direction parallel to the normal of the main surface of the first substrate.
  • an antenna device including a plurality of antennas
  • mutual interference between the plurality of antennas can be reduced as compared with the conventional art.
  • FIG. 1A and 1B are diagrams schematically illustrating an external appearance of an antenna device 1 according to Embodiment 1 of the present invention.
  • FIG. 1A is a front view of the antenna device 1 and FIG. 1B is a left side of the antenna device 1. It is a top view, (c) is a top view of the antenna device 1.
  • the x-axis, y-axis, and z-axis are each in the direction perpendicular to the main surface of the first substrate 11 (second direction), as will be described later, as shown in FIG.
  • the antenna device 1 includes a first housing 10 and a second housing 20 as shown in FIG. Further, the first housing 10 includes a first substrate 11 having a ground (ground conductor) and a first antenna 13 fed from the first substrate 11 by the first feeding unit 12. ing. Further, as shown in FIG. 1C, the second housing 20 includes a second substrate 21 having a ground, and a second power fed from the second substrate 21 by the second power feeding unit 22. An antenna 23 is built in. As shown in FIG. 1, the first substrate 11 is arranged in parallel with the yz plane, and the second substrate 21 is arranged in parallel with the xy plane. In other words, the first substrate 11 and the second substrate 21 are arranged such that the angles formed by the principal surfaces of each other are a right angle.
  • the ground of the first substrate 11 may have, for example, a substantially rectangular shape in which the z-axis direction is the longitudinal direction and the y-axis direction is the short direction.
  • the ground of the second substrate 21 is not limited to this.
  • one of the x-axis direction and the y-axis direction is the longitudinal direction, and the other is the short-side direction. It may have.
  • the “right angle” in the present invention is not limited to the case where two target surfaces are strictly right angles. For example, the angle formed between the perpendicular of one surface and the other surface is 0. If it is not less than 10 degrees and not more than 10 degrees, it is included in the above-mentioned “right angle”.
  • the ground current (high-frequency current) D1 that flows through the ground of the first substrate 11 when the first antenna 13 is fed is, as shown in (a) and (b) of FIG. It is adjusted to be in the z-axis direction.
  • the electrical length of the ground in the z-axis direction is set to 1 ⁇ 4 of the wavelength corresponding to the use frequency of the first antenna 13. The method to make is mentioned.
  • the method of adjusting the ground current D1 of the first antenna 13 so as to flow in the z-axis direction is not limited to this, and other methods such as using a BPF (Band Pass Filter), a notch, or the like are also possible. Good.
  • the ground current flowing through the ground when the second antenna 23 is fed is in addition to the ground current D21 in the main direction, and the ground current D22 and the ground current D23.
  • a ground current flows.
  • the main direction of the ground current D1 of the first antenna 13 is the z-axis direction
  • the flowing direction of the ground current D21, the ground current D22, and the ground current D23 of the second antenna 23 is any. Is also perpendicular to the direction in which the ground current D1 flows.
  • the antenna device 1 includes the first substrate 11 having the ground, the first antenna 13 fed from the first substrate 11, the second substrate 21 having the ground, A second antenna 23 fed from the second substrate 21 is provided, and is arranged so that an angle formed between the main surface of the first substrate 11 and the main surface of the second substrate 21 is a right angle.
  • the main direction of the ground current D ⁇ b> 1 that flows through the ground of the first substrate 11 when the first antenna 13 is fed is the z-axis direction. Therefore, in the antenna device 1, the direction of the ground current D ⁇ b> 1 that flows through the ground of the first substrate 11 is perpendicular to the direction of the ground current that flows through the ground of the second substrate 21.
  • the mutual interference with the antenna 23 can be reduced as compared with the conventional case.
  • FIG. 2A and 2B are diagrams schematically showing an antenna device 1a according to a first modification of the present invention, in which FIG. 2A is a front view of the antenna device 1a, and FIG. 2B is a left side view of the antenna device 1a.
  • (C) is a top view of the antenna device 1a.
  • the first antenna 13a and the second antenna 23a resonate at a first frequency (Low band) and a second frequency (High band) that is higher than the first frequency, respectively.
  • the antenna when the antenna resonates at a plurality of frequencies, the antenna resonates at the first frequency (Low band) and the second frequency (High band).
  • the first casing 10a is fed with power by the first substrate 11a having a ground and the first feeder 11a from the first substrate 11a.
  • the first antenna 13a is built in.
  • the second casing 20a is supplied with a second substrate 21a having a ground, and a second power supplied from the second substrate 21a by the second power supply unit 22a.
  • Antenna 23a is shown in FIG. 2A.
  • the ground current D11a when the first antenna 13a is fed at the first frequency is adjusted to flow in the z-axis direction as shown in FIG.
  • the ground current D22a when the second antenna 23a is fed at the second frequency is adjusted to flow in the x-axis direction as shown in FIG.
  • the method for adjusting the ground current to flow in a predetermined direction is the same as in the first embodiment.
  • the direction in which the ground current D12a flows is The direction in which the ground current D22a flows when the second antenna 23a is fed at the second frequency is perpendicular.
  • the direction in which the ground current D21a flows is the first When the first antenna 13a is fed at the first frequency, it is perpendicular to the direction in which the ground current D11a flows.
  • the antenna device 1a includes the first substrate 11a having the ground, the first antenna 13a fed from the first substrate 11a, the second substrate 21a having the ground,
  • the second antenna 23a is fed from the second substrate 21a, and is arranged so that the angle formed between the main surface of the first substrate 11a and the main surface of the second substrate 21a is a right angle.
  • the first antenna 13a and the second antenna 23a resonate at the first frequency and the second frequency, respectively, and the ground current flowing through the ground when the first antenna is fed at the first frequency.
  • the main direction is the z-axis direction.
  • the main direction of the ground current flowing through the ground is the x-axis direction.
  • the directions of the ground currents are perpendicular to each other regardless of the frequency at which the first antenna 13a and the second antenna 23a communicate. Therefore, the antenna device 1a can reduce mutual interference between the first antenna 13a and the second antenna 23a even when communicating at a plurality of frequencies.
  • FIGS. 3 and 4 are diagrams schematically illustrating an appearance of the antenna device 1b according to the second embodiment of the present invention.
  • FIG. 3A is a front view of the antenna device 1b
  • FIG. 3B is a left side of the antenna device 1b. It is a top view
  • (c) is a top view of the antenna device 1b.
  • the antenna device 1b according to the present embodiment is a humanoid robot in which the first housing 10b is a trunk and the second housing 20b is a head.
  • the antenna device 1b moves the second housing 20b to the z-axis by a movable part (not shown) provided at a portion (neck) that connects the first housing 10b and the second housing 20b. It can be rotated around a parallel axis of rotation.
  • a first substrate 11b having a ground and a first antenna 13b that is fed from the first substrate 11b by the first feeding unit 12b are built in the first housing 10b.
  • the second casing 20b is supplied with a second substrate 21b having a ground, and a second power fed from the second substrate 21b by the second power feeding unit 22b.
  • the first antenna 13b and the second antenna 23b resonate at the first frequency and the second frequency, respectively.
  • FIG. 4 is a diagram illustrating the antenna device 1b according to the present embodiment
  • FIG. 4A is a diagram illustrating a configuration of the first substrate 11b.
  • the first substrate 11b includes a third substrate 11b1, a fourth substrate 11b2, and a BPF (first filter).
  • the ground in the first substrate 11b is separated into two grounds along the z-axis direction, and the separated grounds are the third substrate 11b1 and the ground, respectively. It is disposed on the fourth substrate 11b2.
  • the BPF connects the ground of the third substrate 11b1 and the ground of the fourth substrate 11b2 along the z-axis direction.
  • the BPF is a filter that passes the first frequency but does not pass the second frequency.
  • the separated grounds are arranged on the third substrate and the fourth substrate, respectively, but the present invention is not limited to this configuration.
  • the first substrate may be a single substrate, and the ground may be separated along the z-axis direction on the first substrate.
  • the ground in the first substrate is not limited to the configuration separated into two grounds, and may be configured to be separated into three or more grounds.
  • the electrical length along the z-axis direction of the ground of the third substrate 11b1 is shorter than L11b, which is a quarter of the wavelength corresponding to the first frequency, and the wavelength corresponding to the second frequency.
  • L12b which is 1/4 of the length. Therefore, as shown in FIG. 4A, by connecting the ground disposed on the third substrate 11b1 and the ground disposed on the fourth substrate 11b2 by BPF, the first substrate 11b
  • the ground current D11b that flows when the first antenna 13b is fed at the first frequency can also be adjusted to flow in the z-axis direction.
  • FIG. 4B is a diagram illustrating an operation of the antenna device 1b.
  • the main direction in which the ground current D11b and the ground current D12b flow is the z-axis direction. Therefore, the direction of the ground current flowing in the first substrate 11b is as shown in FIG.
  • the direction of the ground current D13b shown in FIG. Therefore, as shown in FIG.
  • the antenna device 1b when the first antenna 13b is fed with the first frequency, the main direction of the ground current D11b flowing through the ground, and the first antenna 13b is the second antenna.
  • the main direction of the ground current D12b flowing through the ground when power is supplied at a frequency is the z-axis direction. Therefore, even if the second substrate 21b rotates around the rotation axis parallel to the z-axis, the directions of the ground currents flowing through the first substrate 11b and the second substrate 21b are perpendicular to each other. Therefore, the antenna device 1b reduces the mutual interference between the first antenna 13b and the second antenna 23b even when the second substrate 21b rotates around the rotation axis parallel to the z axis. can do.
  • FIG. 5 is a diagram illustrating an antenna device 1c according to a second modification of the present invention.
  • the antenna device 1 according to this modification includes the second housing 20c by a movable portion (not shown) provided at a portion (neck) that connects the first housing 10c and the second housing 20c. It can be rotated around a rotation axis parallel to the y-axis or z-axis. Further, the ground current flowing through the ground of the first substrate 11c is adjusted so as to flow in the z-axis direction as in the second embodiment.
  • FIG. 5A is a diagram showing the configuration of the second substrate 21c.
  • the second substrate 21c includes a fifth substrate 21c1, a sixth substrate 21c2, and BPF1 (second filter). Further, as shown in FIG. 5B, the ground in the second substrate 21c is separated into two grounds along the y-axis direction, and the separated grounds are the fifth substrate 21c1 and the ground, respectively. It is disposed on the sixth substrate 21c2. Further, the BPF 1 connects the ground of the fifth substrate 21c1 and the ground of the sixth substrate 21c2 along the y-axis direction. Further, BPF1 is a filter that passes the first frequency and does not pass the second frequency, like the above-described BPF.
  • the separated grounds are arranged on the third substrate and the fourth substrate, respectively, but the present invention is not limited to this configuration.
  • the second substrate may be a single substrate, and the ground may be separated along the y-axis direction on the second substrate.
  • the ground in the second substrate is not limited to the configuration separated into two grounds, and may be configured to be separated into three or more grounds.
  • the electrical length along the y-axis direction of the ground of the fifth substrate 21c1 is shorter than L21c, which is a quarter of the wavelength corresponding to the first frequency, and the wavelength corresponding to the second frequency.
  • L22c which is 1 ⁇ 4 of the length. Therefore, as shown in FIG. 5B, by connecting the fifth substrate 21c1 and the sixth substrate 21c2 with BPF1, the second antenna 23c is connected to the first frequency on the second substrate 21c. It is possible to adjust the ground current D21c that flows when the power is supplied at 1 to flow in the y-axis direction.
  • FIG. (C) of FIG. 5 is a figure which shows one operation
  • the main direction in which the ground current D11c and the ground current D12c flow is the z-axis direction. Therefore, the direction of the ground current flowing in the first substrate 11c is shown in FIG.
  • the ground current D23c flowing through the second substrate 21c is in the y-axis direction. Therefore, even when the second housing 20c rotates around a rotation axis parallel to the y-axis, the direction in which the ground current D13c flows is perpendicular to the direction in which the ground current D23c flows.
  • FIG. 5D is a diagram illustrating another operation of the antenna device 1c.
  • the direction of the ground current D13c that flows through the first substrate 11c is the z-axis direction
  • the direction of the ground current D23c that flows through the second substrate 21c is the y-axis direction. Is rotated around a rotation axis parallel to the z axis, the direction in which the ground current D13c flows is perpendicular to the direction in which the ground current D23c flows.
  • the main direction of the ground current D21c flowing through the ground when the second antenna 23c is fed with the first frequency, and the second antenna 23c is the second antenna 23c.
  • the main direction of the ground current D22c that flows to the ground when power is supplied at a frequency is the y-axis direction. Therefore, even if the second substrate 21c rotates around a rotation axis parallel to either the z-axis or the y-axis, the directions of the ground currents flowing through the first substrate 11c and the second substrate 21c are respectively , become perpendicular to each other. Therefore, in the antenna device 1c, the mutual interference between the first antenna 13b and the second antenna 23b is reduced regardless of whether the second substrate rotates about either the z axis or the y axis. be able to.
  • the antenna device 1d is configured such that the second housing 20d is moved by a movable portion (not shown) provided in a portion (neck) that connects the first housing 10d and the second housing 20d. It can be rotated about a rotation axis parallel to the x-axis, y-axis, or z-axis. Further, the ground current flowing through the ground of the first substrate 11d is adjusted so as to flow in the z-axis direction as in the second embodiment.
  • FIG. 6 is a diagram showing a configuration of the second substrate 21d in Embodiment 3 of the present invention, (a) is a diagram showing a first state of the second substrate 21d, and (b) is a diagram showing It is a figure which shows the 2nd state of the 2nd board
  • the second substrate 21d includes a seventh substrate 21d1, an eighth substrate 21d2, and two BPFs (third filters).
  • the two BPFs respectively connect the ground of the seventh substrate 21d1 and the ground of the eighth substrate 21d2 along the y-axis direction and the x-axis direction.
  • the ground in the second substrate 21d is separated into two grounds along the y-axis direction and the x-axis direction, and the separated grounds are arranged on the seventh substrate 21d1 and the eighth substrate 21d2, respectively. ing.
  • the separated grounds are arranged on the seventh substrate and the eighth substrate, respectively, but the present invention is not limited to this configuration.
  • the second substrate may be a single substrate, and the ground may be separated along the y-axis direction and the x-axis direction on the second substrate.
  • the ground in the second substrate is not limited to the configuration separated into two grounds, and may be configured to be separated into three or more grounds.
  • One of the two BPFs is BPF2 and BPF4 having different resonance frequencies, and is selective to the ground of the seventh substrate 21d1 and the ground of the eighth substrate 21d2 along the y-axis direction.
  • BPF2 and BPF4 connected to each other, and the other of the two BPFs is a BPF3 and a BPF5 having different resonance frequencies, and along the x-axis direction, the ground of the seventh substrate 21d1 and the eighth substrate 21d2
  • a configuration including BPF3 and BPF5 that are selectively connected to the ground can be employed.
  • a state in which the seventh substrate 21d1 and the eighth substrate 21d2 are connected via the BPF2 and the BPF3 is referred to as a first state
  • the seventh substrate 21d1 and the eighth substrate 21d2 are connected to the BPF4 and the BPF4.
  • the state connected via the BPF 5 is referred to as a second state.
  • the first state and the second state can be switched by a switch or the like.
  • the first state will be described with reference to FIG.
  • the length of the seventh substrate 21d1 along the y-axis direction is shorter than L21d, which is a quarter length of the wavelength corresponding to the first frequency, Longer than L22d, which is a quarter of the wavelength corresponding to the frequency of. Therefore, as in the above-described embodiment, the seventh substrate 21d1 and the eighth substrate 21d2 are connected via the BPF 2 that passes the first frequency and does not pass the second frequency. Further, the seventh substrate 21d1 and the eighth substrate 21d2 are connected via the BPF 3 that does not pass the first frequency but passes the second frequency so that the ground current does not flow in the x-axis direction.
  • the length of the seventh substrate 21d1 along the x-axis direction is shorter than L21d, which is a quarter length of the wavelength corresponding to the first frequency. Longer than L22d, which is a quarter of the wavelength corresponding to the frequency of. Therefore, as in the above-described embodiment, the seventh substrate 21d1 and the eighth substrate 21d2 are connected via the BPF 5 that passes the first frequency and does not pass the second frequency. Further, the seventh substrate 21d1 and the eighth substrate 21d2 are connected via the BPF 4 that does not pass the first frequency but passes the second frequency so that the ground current does not flow in the y-axis direction.
  • FIG. 7 is a diagram showing an antenna device 1d according to Embodiment 3 of the present invention. As described above, in the first substrate 11d, the main direction in which the ground current D13d flows is the z-axis direction.
  • FIG. 7A is a diagram illustrating an operation of the antenna device 1d.
  • the second housing 20d is rotated around a rotation axis parallel to the y axis
  • the second substrate 21d is switched to the first state.
  • the direction in which the ground current D13d flows is perpendicular to the direction in which the ground current D23d flows.
  • FIG. 7B is a diagram illustrating another operation of the antenna device 1d.
  • the second substrate 21d is switched to the first state.
  • the direction in which the ground current D13d flows is perpendicular to the direction in which the ground current D23d flows.
  • FIG. 7C shows still another operation of the antenna device 1d.
  • the second substrate 21d is switched to the second state.
  • the direction in which the ground current D13d flows is perpendicular to the direction in which the ground current D23d flows.
  • FIG. 7D is a diagram showing still another operation of the antenna device 1d. As shown in FIG. 7D, when the second casing 20d is rotated around the x axis passing through the center of the second casing 20d, the second substrate 21d is brought into the second state. Switch.
  • the direction in which the ground current D13d flows is the same as the direction in which the ground current D23d flows. Be perpendicular to the direction.
  • the main direction of the high-frequency current flowing through the ground of the second substrate 21d when the second antenna 23d is fed with the first frequency, and the second antenna Is fed at the second frequency the main direction of the high-frequency current flowing through the ground of the second substrate 21d is the y-axis direction or the x-axis direction. Therefore, even if the second substrate 21d rotates around the rotation axis parallel to any of the x-axis, y-axis, and z-axis, the second substrate 21d flows through the first substrate 11d and the second substrate 21d, respectively.
  • the directions of the ground current can be perpendicular to each other.
  • the antenna device 1d even if the second substrate 21d rotates around the rotation axis parallel to any of the x-axis, y-axis, and z-axis, the first antenna 13d and the second antenna 13d Mutual interference with the antenna 23d can be reduced.
  • the two BPFs (third filters) in the present embodiment are each provided with two BPFs having different resonance frequencies, but the two BPFs in the present embodiment are not limited to this configuration.
  • the two BPFs in the present embodiment can be switched to any of the resonance frequencies of BPF2 and BPF4 (or BPF3 and BPF5) described above by changing the constants constituting each of the two BPFs. Also good. Even with such a configuration, since the same operation as the above-described operation can be performed, the same effect as the above-described effect can be obtained.
  • the antenna device (1, 1b to 1d) includes a first substrate (11, 11b to 11d) having a ground conductor and a first antenna (13) fed from the first substrate. 13d), a second substrate (21, 21b to 21d) having a ground conductor, and a second antenna (23, 23b to 23d) fed from the second substrate,
  • the high-frequency current that flows through the ground conductor of the first substrate when the first antenna is fed with power and is arranged so that the angle formed by the main surface of the substrate and the main surface of the second substrate is a right angle
  • the main direction is a first direction (z-axis direction) parallel to the perpendicular of the main surface of the second substrate.
  • the second antenna is fed in the direction of the high-frequency current flowing through the ground conductor of the first substrate when the first antenna is fed. Since it is perpendicular to the direction of the high-frequency current that sometimes flows through the ground conductor of the second substrate, mutual interference between the first antenna and the second antenna can be reduced as compared with the conventional case.
  • An antenna device (1a) includes a first substrate (11a) having a ground conductor, a first antenna (13a) fed from the first substrate, and a first substrate having a ground conductor.
  • Two substrates (21a) and a second antenna (23a) fed from the second substrate, and an angle formed between the main surface of the first substrate and the main surface of the second substrate Are arranged at right angles, and the first antenna and the second antenna resonate at a first frequency and a second frequency that is higher than the first frequency, respectively.
  • the main direction of the high-frequency current flowing through the ground conductor of the first substrate is the first direction parallel to the perpendicular of the main surface of the second substrate.
  • the main direction of the high-frequency current flowing through the ground conductor of the serial second substrate is a second direction parallel to the normal of the main surface of the first substrate.
  • the direction of the high-frequency current flowing through the ground conductor of the first board is the same as that of the second board. Since it is perpendicular to the direction of the flowing high-frequency current, mutual interference between the first antenna and the second antenna can be reduced.
  • the length of the first substrate along the main direction of the high-frequency current flowing through the ground conductor corresponds to the use frequency of the first antenna.
  • the length may be 1/4 of the wavelength to be measured.
  • substrate can be adjusted more suitably to a 1st direction.
  • the antenna device (1b) according to aspect 4 of the present invention is the above aspect 1 or 3, wherein the first antenna (13b) and the second antenna (23b) are the first frequency and the first frequency, respectively.
  • the main direction of the high-frequency current flowing through the ground conductor of the first substrate is the first direction
  • the second substrate is
  • the rotation axis parallel to the first direction may be the center of rotation.
  • the second substrate flows through the ground conductor of the first substrate even when the second substrate rotates about the rotation axis parallel to the first direction. Since the direction of the high-frequency current is perpendicular to the direction of the high-frequency current flowing through the ground conductor of the second substrate, mutual interference between the first antenna and the second antenna can be reduced.
  • the ground conductor in the first substrate is separated into a plurality of ground conductors along the first direction.
  • the plurality of separated ground conductors may be connected to each other via a first filter (BPF) that passes the high-frequency current of the first frequency and does not pass the high-frequency current of the second frequency.
  • BPF first filter
  • the antenna device (1c) according to aspect 6 of the present invention is the high frequency current flowing through the ground conductor of the second substrate when the second antenna is fed at the first frequency in the aspect 4 or 5.
  • the main direction of the current and the main direction of the high-frequency current flowing through the ground conductor of the second substrate when the second antenna is fed at the second frequency are the main surface of the first substrate.
  • a second direction (x-axis direction) parallel to the perpendicular and a direction (y-axis direction) perpendicular to both the first direction, and the second substrate further includes the first direction and the first direction. It may be configured to rotate around a rotation axis (y-axis) perpendicular to both of the two directions.
  • the antenna device even if the second substrate rotates about the first direction and the rotation axis perpendicular to the second direction, the first substrate Since the direction of the high-frequency current flowing through the ground conductor is perpendicular to the direction of the high-frequency current flowing through the ground conductor of the second substrate, mutual interference between the first antenna and the second antenna can be reduced. it can.
  • the antenna device is the antenna apparatus according to aspect 6, wherein the ground conductor on the second substrate is a plurality of ground conductors along a direction perpendicular to both the first direction and the second direction.
  • the plurality of ground conductors separated by the second substrate pass through the second filter that passes the high-frequency current of the first frequency and does not pass the high-frequency current of the second frequency. It may be connected.
  • the main direction of the high-frequency current flowing through the ground conductor of the second substrate when the second antenna is fed at the first frequency, and the second antenna can easily realize a configuration in which the main direction of the high-frequency current flowing through the ground conductor of the second substrate is a direction perpendicular to both the first direction and the second direction when power is supplied at the second frequency. be able to.
  • the antenna device (1d) according to aspect 8 of the present invention is the high frequency current flowing through the ground conductor of the second substrate when the second antenna is fed at the first frequency in the aspect 4 or 5.
  • the main direction of the current and the main direction of the high-frequency current flowing through the ground conductor of the second substrate when the second antenna is fed at the second frequency are the first direction and the first direction.
  • the antenna device when rotating around the rotation axis perpendicular to both the first direction and the second direction and the rotation axis parallel to the second direction, Even so, the direction of the high-frequency current flowing through the ground conductor of the first substrate is perpendicular to the direction of the high-frequency current flowing through the ground conductor of the second substrate. The mutual interference between them can be reduced.
  • the antenna device is the antenna apparatus according to aspect 8, wherein the ground conductor on the second substrate is perpendicular to the second direction and both the first direction and the second direction. Are separated into a plurality of ground conductors, and the plurality of ground conductors separated in the second substrate are separated in the second direction and both the first direction and the second direction.
  • the third filter may be switched according to a rotation axis on which the second substrate rotates.
  • the main direction of the high-frequency current flowing through the ground conductor of the second substrate is switched according to the rotation axis around which the second substrate rotates. It is possible to easily realize a configuration in which the direction of the high-frequency current flowing through the ground conductor is perpendicular to the direction of the high-frequency current flowing through the ground conductor of the second substrate.
  • An antenna device (1b to 1d) according to an aspect 10 of the present invention is the humanoid robot according to any one of the aspects 1 to 9, wherein the first substrate is provided on a body and the second substrate is provided on a head. It may be. According to said structure, the humanoid robot which functions as an antenna apparatus which concerns on each said aspect is realizable.

Landscapes

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

Abstract

L'invention vise à réduire l'interférence mutuelle parmi une pluralité d'antennes en comparaison avec les cas conventionnels dans un dispositif d'antennes qui comporte une pluralité d'antennes. L'invention concerne un dispositif d'antennes (1) qui comporte : un premier substrat (11) pourvu d'une masse ; une première antenne (13) devant être alimentée en puissance depuis le premier substrat ; un deuxième substrat (21) pourvu d'une masse ; et une deuxième antenne (23) devant être alimentée en puissance depuis le deuxième substrat. Les substrats sont disposés de telle sorte qu'un angle formé par la surface principale du premier substrat et la surface principale du deuxième substrat est l'angle droit, et que la direction principale d'un courant à haute fréquence circulant dans le premier substrat lorsque la première antenne est alimentée en puissance est la direction linéaire perpendiculaire de la surface principale du deuxième substrat.
PCT/JP2016/067132 2015-07-29 2016-06-08 Dispositif d'antennes WO2017018069A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017531070A JP6385583B2 (ja) 2015-07-29 2016-06-08 アンテナ装置

Applications Claiming Priority (2)

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JP2015150006 2015-07-29
JP2015-150006 2015-07-29

Publications (1)

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WO2017018069A1 true WO2017018069A1 (fr) 2017-02-02

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PCT/JP2016/067132 WO2017018069A1 (fr) 2015-07-29 2016-06-08 Dispositif d'antennes

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JP (1) JP6385583B2 (fr)
WO (1) WO2017018069A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11163756A (ja) * 1997-11-27 1999-06-18 Sharp Corp 携帯無線機
JP2002330026A (ja) * 2001-03-01 2002-11-15 Red-M (Communications) Ltd アンテナアレイ
US20100302110A1 (en) * 2009-05-26 2010-12-02 Lg Electronics Inc. Portable terminal and antenna device thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11163756A (ja) * 1997-11-27 1999-06-18 Sharp Corp 携帯無線機
JP2002330026A (ja) * 2001-03-01 2002-11-15 Red-M (Communications) Ltd アンテナアレイ
US20100302110A1 (en) * 2009-05-26 2010-12-02 Lg Electronics Inc. Portable terminal and antenna device thereof

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JPWO2017018069A1 (ja) 2017-11-24

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