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WO2012039465A1 - Dispositif d'antenne - Google Patents

Dispositif d'antenne Download PDF

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Publication number
WO2012039465A1
WO2012039465A1 PCT/JP2011/071664 JP2011071664W WO2012039465A1 WO 2012039465 A1 WO2012039465 A1 WO 2012039465A1 JP 2011071664 W JP2011071664 W JP 2011071664W WO 2012039465 A1 WO2012039465 A1 WO 2012039465A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductor plate
antenna device
radiation conductor
substrate
dielectric substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2011/071664
Other languages
English (en)
Japanese (ja)
Inventor
裕次郎 中山
磯　洋一
範行 庄司
正弘 楠
青木　一芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Publication of WO2012039465A1 publication Critical patent/WO2012039465A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0442—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular tuning means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines

Definitions

  • the present invention relates to an antenna device suitable for use in a GPS antenna device or a composite antenna device including a GPS antenna device.
  • the solder land is opposed to the ground conductor via the dielectric substrate. For this reason, by adding a capacitance between the leg piece soldered to the solder land and the ground conductor, the resonance frequency is lowered, and as a result, the radiation conductor plate and the planar antenna device can be miniaturized. be able to.
  • the capacitance forming components such as the bent portions of the leg pieces and the capacitors are arranged on the dielectric substrate side, it is not possible to adjust the capacitance value after assembly. difficult. Therefore, according to the planar antenna device described in Patent Documents 1 and 2, the additional capacitance is adjusted when the frequency characteristics of the planar antenna device fluctuate due to fluctuations in the additional capacitance due to manufacturing variations in the dielectric constant of the dielectric substrate. This makes it difficult to adjust the frequency characteristics of the planar antenna device.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide an antenna device in which an additional capacity can be easily adjusted.
  • an antenna device includes a grounding substrate having a grounding conductor plate and a resin disposed at a predetermined distance from the surface of the grounding substrate.
  • a radiation conductor plate provided on a back surface or a front surface side of the resin substrate facing the grounding substrate, and the radiation conductor provided in a plane of the resin substrate on which the radiation conductor plate is provided.
  • a capacitance forming portion that electromagnetically couples with the plate to form a capacitive element between the radiation conductor plate.
  • an antenna device includes a grounding substrate having a grounding conductor plate, and a resin disposed at a predetermined distance from the surface of the grounding substrate.
  • a capacitance forming part that electromagnetically couples with the radiation conductor plate and forms a capacitive element between the radiation conductor plate.
  • the antenna device according to the present invention can easily adjust the additional capacitance even when the additional capacitance varies due to manufacturing variations in the dielectric constant of the ground substrate and the resin substrate.
  • FIG. 1 is a perspective view showing a configuration of an antenna apparatus according to the first embodiment of the present invention.
  • FIG. 2 is a plan view of the antenna device for explaining a method of adjusting the additional capacitance.
  • FIG. 3 is a plan view of the antenna device for explaining the adjustment method of the additional capacitance.
  • 4 is a perspective view showing a configuration of a modification of the antenna device shown in FIG.
  • FIG. 5 is a plan view of the antenna device for explaining the adjustment method of the additional capacitance.
  • FIG. 6 is a perspective view showing the configuration of the antenna device according to the second embodiment of the present invention.
  • FIG. 7 is a perspective view showing a configuration of a modification of the antenna device shown in FIG. FIG.
  • FIG. 8 is a perspective view showing a configuration of a modified example of the antenna device shown in FIG.
  • FIG. 9 is a perspective view showing a configuration of a modified example of the antenna device shown in FIG.
  • FIG. 10 is a perspective view showing a configuration of a modification of the antenna device shown in FIG.
  • FIG. 11 is a perspective view showing a configuration of a modified example of the antenna device shown in FIG.
  • FIG. 1 is a perspective view showing a configuration of an antenna device according to a first embodiment of the present invention.
  • an antenna device 1 according to a first embodiment of the present invention includes a pair of dielectric substrates 2 and 3 formed in a quadrangular shape, and the pair of dielectric substrates 2 and 3 are spaced apart from each other by a predetermined distance. They are spaced apart from each other.
  • the pair of dielectric substrates 2 and 3 are formed of a resin material such as glass epoxy resin.
  • a ground conductor plate 21 formed of a sheet metal part is disposed on the back side 2b of the dielectric substrate 2.
  • a radiation conductor plate 31 formed of copper foil or the like is disposed on the back surface 3a side of the dielectric substrate 3 facing the dielectric substrate 2.
  • the radiating conductor plate 31 is formed with a slit-shaped perturbation portion 31c so that circularly polarized radio waves can be transmitted and received.
  • a conductive member 41 erected on the surface 2 a side of the dielectric substrate 2 facing the dielectric substrate 3 is connected to the radiation conductor plate 31.
  • a power supply signal supplied from a power supply pin (not shown) to the conductive member 41 is supplied to the radiation conductor plate 31 via the conductive member 41. That is, the radiating conductor plate 31 is directly fed by a one-point feeding method.
  • the four triangular capacitance forming portions 33a, 33b, 33c, 33d formed by sheet metal parts are arranged. That is, the four capacitance forming portions 33a to 33d are provided at an interval of approximately 90 degrees with the center position of the dielectric substrate 3 (radiating conductor plate 31) as an axis.
  • the four capacitance forming portions 33a to 33d are connected to one end portions of rod-like conductive members 42a, 42b, 42c, and 42d that penetrate the dielectric substrate 3.
  • the other end portions of the conductive members 42 a to 42 d are fixed to the dielectric substrate 2 with a solder material 43.
  • the conductive members 42a to 42d have a function of supporting the dielectric substrate 3 at a predetermined distance from the surface 2a of the dielectric substrate 2 and a function of grounding the capacitor forming portions 33a to 33d.
  • the four capacitance forming portions 33 a to 33 d are electromagnetically coupled to the radiation conductor plate 31 to form a capacitive element between the radiation conductor plate 31.
  • the resonance frequency of the antenna device 1 is lowered, and the antenna device 1 can be downsized.
  • the capacity forming portions 33a to 33d for adjusting the resonance frequency of the antenna device 1 are the outermost surfaces of the antenna device 1. It is disposed on the surface side 3 b of the dielectric substrate 3. Therefore, according to such a configuration, even when the frequency characteristics of the antenna device 1 fluctuate due to fluctuations in the additional capacitance due to manufacturing variations in the dielectric constant of the dielectric substrate 3, as shown in FIG.
  • the capacitance forming portions 33a to 33d By trimming the capacitance forming portions 33a to 33d, the opposing area of the capacitance forming portions 33a to 33d with respect to the radiation conductor plate 31 is adjusted, thereby easily adjusting the additional capacitance and changing the frequency characteristics of the antenna device 1 to the desired frequency characteristics. Can be adjusted.
  • the capacitance forming portions 33a to 33d have a triangular shape.
  • the capacitance forming portions 33a to 33d have a shape other than the triangular shape. May be.
  • a plurality of protrusions 34 protruding in the in-plane direction of the surface 3b of the dielectric substrate 3 are provided in the capacitance forming parts 33a to 33d, and the length and number of the protrusions 34 to be trimmed are adjusted. Accordingly, the additional capacity may be adjusted.
  • the radiating conductor plate 31 and the capacitance forming portions 33a to 33d are provided on the back surface 3a side and the front surface side 3b of the dielectric substrate 3, respectively.
  • capacitance forming portions 33a to 33d and a radiating conductor plate 31 are provided on the back surface 3a side and the front surface side 3b of the dielectric substrate 3, respectively, and the radiating conductor plate 31 is trimmed to thereby form a capacitance forming portion 33a for the radiating conductor plate 31.
  • the opposing area of ⁇ 33d may be adjusted.
  • the dielectric substrate 3 is supported by the dielectric substrate 2, the conductive members 42a to 42d, and the capacitance forming portions 33a to 33d.
  • protrusions 35 are provided at the four corners of the radiation conductor plate 31 facing the capacitor forming portions 33a to 33d, and the length and number of the protrusions 35 to be trimmed are adjusted.
  • the facing area of the capacitance forming portions 33a to 33d with respect to the radiation conductor plate 31 is adjusted.
  • FIG. 6 is a perspective view showing the configuration of the antenna device according to the second embodiment of the present invention.
  • the antenna device 1 according to the second embodiment of the present invention includes a pair of dielectric substrates 2 and 3 formed in a quadrangular shape, and the pair of dielectric substrates 2 and 3 are spaced apart from each other by a predetermined distance. They are spaced apart from each other.
  • the pair of dielectric substrates 2 and 3 are formed of a resin material such as glass epoxy resin.
  • a ground conductor plate 21 formed of a sheet metal part is disposed on the back side 2b of the dielectric substrate 2.
  • a Wilkinson distributor 22 is provided on the surface 2 a side of the dielectric substrate 2 facing the dielectric substrate 3.
  • the Wilkinson distributor 22 has two output portions 22a and 22b which are in a positional relationship 90 degrees apart from each other within the surface 2a of the dielectric substrate 2.
  • a power supply signal supplied from one power supply pin (not shown) to Wilkinson distributor 22 is output from output units 22a and 22b with the same amplitude and a phase difference of 90 degrees.
  • the positions of the output units 22a and 22b may be adjusted by adjusting the pattern of the Wilkinson distributor 22.
  • a radiation conductor plate 31 formed of copper foil or the like is disposed on the back surface 3a side of the dielectric substrate 3 facing the dielectric substrate 2.
  • a pair of power supply pads 32a and 32b formed of a copper foil or the like is disposed on the surface side 3b of the dielectric substrate 3.
  • the pair of power supply pads 32a and 32b are disposed at positions corresponding to the output portions 22a and 22b, respectively.
  • the power supply pads 32 a and 32 b and the output portions 22 a and 22 b are electrically connected by rod-like conductive members 41 a and 41 b that penetrate the dielectric substrate 3.
  • the power supply signals output from the output units 22a and 22b are supplied to the power supply pads 32a and 32b via the conductive members 41a and 41b, and are formed between the power supply pads 32a and 32b and the radiation conductor plate 31.
  • Capacitive power is supplied to the radiation conductor plate 31 through the capacitive element. That is, the radiating conductor plate 31 is capacitively fed by a two-point feeding method.
  • the pair of power supply pads 32a and 32b functions as a capacitive power supply unit according to the present invention.
  • the four triangular capacitance forming portions 33a, 33b, 33c, 33d formed by sheet metal parts are arranged. That is, the four capacitance forming portions 33a to 33d are provided at an interval of approximately 90 degrees with the center position (radiation conductor plate 31) of the dielectric substrate 3 as an axis.
  • the four capacitance forming portions 33a to 33d are connected to one end portions of rod-like conductive members 42a, 42b, 42c, and 42d that penetrate the dielectric substrate 3.
  • the other end portions of the conductive members 42 a to 42 d are fixed to the ground conductor plate 21 with a solder material 43.
  • the conductive members 42a to 42d have a function of supporting the dielectric substrate 3 at a predetermined distance from the surface 2a of the dielectric substrate 2 and a function of grounding the capacitor forming portions 33a to 33d.
  • the four capacitance forming portions 33 a to 33 d are electromagnetically coupled to the radiation conductor plate 31 to form a capacitive element between the radiation conductor plate 31.
  • the resonance frequency of the antenna device 1 is lowered, and the antenna device 1 can be downsized.
  • the capacity forming portions 33a to 33d for adjusting the resonance frequency of the antenna device 1 are the outermost surfaces of the antenna device 1. It is disposed on the surface side 3 b of the dielectric substrate 3. Therefore, according to such a configuration, even when the frequency characteristics of the antenna device 1 fluctuate due to fluctuations in the additional capacitance due to manufacturing variations in the dielectric constant of the dielectric substrate 3, the capacitance forming portions 33a to 33d can be provided. By adjusting the opposing area of the capacitance forming portions 33a to 33d with respect to the radiation conductor plate 31 by trimming, the additional capacitance can be easily adjusted and the frequency characteristic of the antenna device 1 can be adjusted to a desired frequency characteristic.
  • the radiation conductor plate 31 is fed by the two-point feeding method, so that the band of the antenna device 1 can be widened.
  • the power feeding pads 32a and 32b are disposed on the surface side 3b of the dielectric substrate 3 which is the outermost surface of the antenna device 1, and therefore the power feeding pads 32a and 32b are arranged.
  • the capacitance forming portions 33a to 33d and the radiation conductor plate 31 are disposed on the front surface 3b side and the back surface 3a side of the dielectric substrate 3, respectively.
  • the capacitance forming portions 33a to 33d and the radiation conductor plate 31 may be disposed on the back surface 3a side and the front surface 3b side of the dielectric substrate 3, respectively.
  • the additional capacitance is adjusted by trimming the radiation conductor plate 31 disposed on the outermost surface of the antenna device 1 to adjust the facing area of the radiation conductor plate 31 with respect to the capacitance forming portions 33a to 33d.
  • the frequency characteristic of the antenna device 1 can be adjusted to a desired frequency characteristic.
  • the dielectric substrate 3 is supported by the dielectric substrate 2, the conductive members 42a to 42d, and the capacitance forming portions 33a to 33d.
  • the radiating conductor plate 31 and the capacitance forming portions 33a to 33d are provided on the back surface 3a side and the front surface side 3b of the dielectric substrate 3, respectively.
  • capacitance forming portions 33a to 33d and a radiating conductor plate 31 are provided on the back surface 3a side and the front surface side 3b of the dielectric substrate 3, respectively, and the radiating conductor plate 31 is trimmed to thereby form a capacitance forming portion 33a for the radiating conductor plate 31.
  • the opposing area of ⁇ 33d may be adjusted. Specifically, in this case, as shown in FIG.
  • protrusions 35 are provided at the four corners of the radiation conductor plate 31 facing the capacitor forming portions 33a to 33d, and the length and number of the protrusions 35 to be trimmed are adjusted. Thus, the facing area of the capacitance forming portions 33a to 33d with respect to the radiation conductor plate 31 is adjusted.
  • the area of the radiation conductor plate 31 is reduced, so that the power supply pads 32a and 32b are connected to the dielectric substrate.
  • 3 is preferably provided on the back surface 3a side.
  • the opening 44 may be formed in the radiation conductor plate 31 and the dielectric substrate 3 so that the mounting state of the Wilkinson distributor 22 can be confirmed.
  • the power supply pads 32a and 32b are arranged on the front surface 3b side of the dielectric substrate 3.
  • Cutout portions 31a and 31b may be formed by cutting out the radiation conductor plate 31 disposed on the side, and the power supply pads 32a and 32b may be disposed in the cutout portions 31a and 31b.
  • the area of the radiating conductor plate 31 is reduced as compared with the configuration shown in FIG. 6, so that the antenna characteristics may be deteriorated.
  • the radiating conductor plate 31 is disposed on the back surface 3a side of the dielectric substrate 3.
  • the radiation conductor plate 31 may be arranged on the surface 3b side of the dielectric substrate 3 so as not to contact the portions 33a to 33d.
  • pad portions 36a, 36b, 36c, and 36d instead of the capacitance forming portions 33a to 33d shown in FIG. 10, pad portions 36a, 36b, 36c, and 36d that are in contact with the conductive members 42a to 42d, the radiation conductor plate 31, and the pad portion.
  • Capacitor chips 37a, 37b, 37c, and 37d that connect 36a to 36d may be provided. In the configuration shown in FIG.
  • the capacitor chips 37a to 37d are replaced with other capacitor chips having different capacities.
  • the additional capacity can be easily adjusted by appropriately changing to.
  • the antenna device uses a satellite navigation system GALILEO of the Russian satellite navigation system GLONASS (Global Navigation Satellite System), the European Union (EU) and the European Space Agency (ESA), a satellite in the United States. It can be applied to SDARS (Satellite Digital Audio Radio Service) etc., which is a service by digital broadcasting. That is, other embodiments, examples, operational techniques, and the like made by those skilled in the art based on the present embodiment are all included in the scope of the present invention.
  • GALILEO Global Navigation Satellite System
  • GLONASS Global Navigation Satellite System
  • EU European Union
  • ESA European Space Agency
  • the present invention can be used for a GPS antenna device and a composite antenna device including a GPS antenna device.

Landscapes

  • Waveguide Aerials (AREA)

Abstract

Selon l'invention, des unités formant capacité (33a à 33d) destinées à l'ajustement d'une fréquence de résonnance d'un dispositif d'antenne (1), sont disposées sur un côté surface (3b) d'un substrat diélectrique (3) constituant la surface extérieure du dispositif d'antenne (1). Par conséquent, y compris dans les cas où les spécificités de fréquence du dispositif d'antenne (1) varient au gré de variations de capacité additionnelle dues à une irrégularité de production diélectrique du substrat diélectrique (3), une zone opposée des unités formant capacité (33a à 33d) vis-à-vis d'une plaque conductrice de rayonnement (31) est ajustée par réglage des unités formant capacité (33a à 33d), permettant ainsi d'ajuster facilement la capacité additionnelle, et d'ajuster également les spécificités de fréquence du dispositif d'antenne (1) pour obtenir les spécificités de fréquence désirées.
PCT/JP2011/071664 2010-09-24 2011-09-22 Dispositif d'antenne Ceased WO2012039465A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2010213673 2010-09-24
JP2010-213673 2010-09-24
JP2011042628A JP2012090251A (ja) 2010-09-24 2011-02-28 アンテナ装置
JP2011-042628 2011-02-28

Publications (1)

Publication Number Publication Date
WO2012039465A1 true WO2012039465A1 (fr) 2012-03-29

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PCT/JP2011/071664 Ceased WO2012039465A1 (fr) 2010-09-24 2011-09-22 Dispositif d'antenne

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JP (1) JP2012090251A (fr)
WO (1) WO2012039465A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9379427B2 (en) 2013-04-26 2016-06-28 Apple Inc. Methods for manufacturing an antenna tuning element in an electronic device
EP3745528A1 (fr) * 2019-05-28 2020-12-02 ALCAN Systems GmbH Dispositif de fréquence radio
CN115863974A (zh) * 2022-11-22 2023-03-28 上海交通大学 能量选择天线及其设计方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11349217B2 (en) 2019-01-24 2022-05-31 Wispry, Inc. Method for integrating antennas fabricated using planar processes
TWI805132B (zh) * 2021-12-17 2023-06-11 耀登科技股份有限公司 天線結構

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1098330A (ja) * 1996-09-24 1998-04-14 Murata Mfg Co Ltd アンテナ
JP2000049527A (ja) * 1998-07-31 2000-02-18 Toko Inc マイクロストリップアンテナとその共振周波数調整方法
JP2000101335A (ja) * 1998-02-13 2000-04-07 Murata Mfg Co Ltd チップアンテナ、アンテナ装置及び移動体通信機器
JP2004056204A (ja) * 2002-07-16 2004-02-19 Alps Electric Co Ltd パッチアンテナ
JP2005203919A (ja) * 2004-01-14 2005-07-28 Alps Electric Co Ltd アンテナ装置
JP2006332784A (ja) * 2005-05-23 2006-12-07 Alps Electric Co Ltd 平面アンテナ装置
JP2010147746A (ja) * 2008-12-18 2010-07-01 Mitsumi Electric Co Ltd アンテナ装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1098330A (ja) * 1996-09-24 1998-04-14 Murata Mfg Co Ltd アンテナ
JP2000101335A (ja) * 1998-02-13 2000-04-07 Murata Mfg Co Ltd チップアンテナ、アンテナ装置及び移動体通信機器
JP2000049527A (ja) * 1998-07-31 2000-02-18 Toko Inc マイクロストリップアンテナとその共振周波数調整方法
JP2004056204A (ja) * 2002-07-16 2004-02-19 Alps Electric Co Ltd パッチアンテナ
JP2005203919A (ja) * 2004-01-14 2005-07-28 Alps Electric Co Ltd アンテナ装置
JP2006332784A (ja) * 2005-05-23 2006-12-07 Alps Electric Co Ltd 平面アンテナ装置
JP2010147746A (ja) * 2008-12-18 2010-07-01 Mitsumi Electric Co Ltd アンテナ装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9379427B2 (en) 2013-04-26 2016-06-28 Apple Inc. Methods for manufacturing an antenna tuning element in an electronic device
EP3745528A1 (fr) * 2019-05-28 2020-12-02 ALCAN Systems GmbH Dispositif de fréquence radio
CN115863974A (zh) * 2022-11-22 2023-03-28 上海交通大学 能量选择天线及其设计方法

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