JP2015070478A - Electrostatic coupling antenna - Google Patents

Electrostatic coupling antenna Download PDF

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JP2015070478A
JP2015070478A JP2013203658A JP2013203658A JP2015070478A JP 2015070478 A JP2015070478 A JP 2015070478A JP 2013203658 A JP2013203658 A JP 2013203658A JP 2013203658 A JP2013203658 A JP 2013203658A JP 2015070478 A JP2015070478 A JP 2015070478A
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conductor
electrostatic coupling
substrate
coupling antenna
antenna
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恭平 小澤
Kyohei Ozawa
恭平 小澤
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Tokyo Cosmos Electric Co Ltd
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Tokyo Cosmos Electric Co Ltd
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Priority to JP2013203658A priority Critical patent/JP2015070478A/en
Priority to PCT/JP2014/004746 priority patent/WO2015045323A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • 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
    • H01Q5/10—Resonant antennas
    • H01Q5/15—Resonant antennas for operation of centre-fed antennas comprising one or more collinear, substantially straight or elongated active elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • 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

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Abstract

PROBLEM TO BE SOLVED: To easily discover an abnormal insulation resistance and a defect such as a short circuit in a coaxial cable connected to a feeding point, using an insulation resistance meter and a circuit tester.SOLUTION: An electrostatic coupling antenna 10a includes: a first conductor 11a; and a second conductor 13a which is formed without short circuit to the first conductor 11a and electrostatically coupled with the first conductor 11a by power supply. The feeding point of the second conductor 13a is formed in at least one of the inner regions of the first conductor 11a and the second conductor 13a other than the feeding point.

Description

本発明は、静電結合により作動する静電結合型アンテナに関する。   The present invention relates to a capacitively coupled antenna that operates by electrostatic coupling.

従来、ヘンテナと呼ばれるループアンテナが知られている。ヘンテナとは、矩形状ループの２つの長辺に給電部を短絡したループアンテナである（例えば、特許文献１〜４を参照）。   Conventionally, a loop antenna called a henna is known. The henna is a loop antenna in which a feeding portion is short-circuited on two long sides of a rectangular loop (see, for example, Patent Documents 1 to 4).

図１３は、従来のヘンテナ１ａの一例を示す図である。図１３に示すように、このヘンテナ１ａは、基板２ａ上に銅箔３ａを積層することにより形成される。そして、ヘンテナ１ａの中央領域の給電箇所４ａから給電がなされる。   FIG. 13 is a diagram showing an example of a conventional henna 1a. As shown in FIG. 13, the henna 1a is formed by laminating a copper foil 3a on a substrate 2a. And electric power feeding is performed from the electric power feeding location 4a of the center area | region of the henna 1a.

なお、ヘンテナ１ａにおけるループの数は、図１３に示したものに限られない。図１４〜１６には、ループ数が異なる従来のヘンテナ１ｂ〜１ｄの例が示されている。図１４〜１６において、２ｂ〜２ｄは基板を示し、３ｂ〜３ｄは銅箔を示し、４ｂ〜４ｄは給電箇所を示す。   It should be noted that the number of loops in the henna 1a is not limited to that shown in FIG. FIGS. 14 to 16 show examples of conventional henteners 1b to 1d having different numbers of loops. 14-16, 2b-2d shows a board | substrate, 3b-3d shows a copper foil, 4b-4d shows a feeding location.

また、図１７、図１８には、それぞれのヘンテナ１ａ〜１ｄのシミュレーション解析の結果が示されている。図１７は、各ヘンテナ１ａ〜１ｄのリターンロスを示す図であり、図１８は、各ヘンテナ１ａ〜１ｄの最大利得を示す図である。   In addition, FIGS. 17 and 18 show the simulation analysis results of the respective hennas 1a to 1d. FIG. 17 is a diagram showing the return loss of each of the hennas 1a to 1d, and FIG. 18 is a diagram showing the maximum gain of each of the hennas 1a to 1d.

図１７に示されるように、いずれのヘンテナ１ａ〜１ｄも、２．３５ＧＨｚの周波数におけるリターンロスが−１５ｄＢ以下である。また、図１８に示されるように、いずれのヘンテナ１ａ〜１ｄも２．４２ＧＨｚの周波数における最大利得が４．６ｄＢｉ以上である。このように、ヘンテナ１ａ〜１ｄは、十分な実用性を示している。   As shown in FIG. 17, the return loss at a frequency of 2.35 GHz is -15 dB or less in any of the hennas 1a to 1d. Further, as shown in FIG. 18, the maximum gains at a frequency of 2.42 GHz are all 4.6 dBi or more in any of the hennas 1a to 1d. Thus, Hentena 1a-1d has shown sufficient practicality.

特開平９−２８４０２８号公報Japanese Patent Laid-Open No. 9-284028 特開２００４−２６６５００号公報JP 2004-266500 A 特開２００５−２５２４０６号公報JP-A-2005-252406 特開２００６−１７４３６２号公報JP 2006-174362 A

しかしながら、上述したようなヘンテナ１ａ〜１ｄでは、給電箇所４ａ〜４ｄとなる銅箔３ａ〜３ｄと、それ以外の箇所の銅箔３ａ〜３ｄとが短絡されているため、給電箇所に接続された同軸ケーブルなどの絶縁抵抗の異常、ショートなどの不良を、絶縁抵抗計やテスターなどで発見することが難しいという問題がある。   However, in the above-described henteners 1a to 1d, the copper foils 3a to 3d serving as the power feeding locations 4a to 4d and the copper foils 3a to 3d in other locations are short-circuited, and thus connected to the power feeding locations. There is a problem that it is difficult to detect an abnormality of an insulation resistance such as a coaxial cable or a defect such as a short circuit with an insulation resistance meter or a tester.

本発明は、上述したような問題を解決するためになされたものであり、給電箇所に接続された同軸ケーブルなどの絶縁抵抗の異常、ショートなどの不良を、絶縁抵抗計やテスターなどで容易に発見することを可能とする静電結合型アンテナを提供することを目的とする。   The present invention has been made to solve the above-described problems, and it is possible to easily detect defects such as abnormal insulation resistance and short circuit of a coaxial cable or the like connected to a feeding point using an insulation resistance meter or a tester. An object of the present invention is to provide a capacitively coupled antenna that can be discovered.

本発明の静電結合型アンテナは、第１の導体と、第１の導体と短絡することなく形成され、給電されることにより第１の導体と静電結合する第２の導体と、を具備し、第２の導体の給電箇所は、第１の導体と、給電箇所以外の第２の導体との少なくとも一方の内側領域に形成される。   An electrostatic coupling antenna according to the present invention includes a first conductor and a second conductor that is formed without being short-circuited with the first conductor and is electrostatically coupled to the first conductor when supplied with power. And the feeding location of the second conductor is formed in at least one inner region of the first conductor and the second conductor other than the feeding location.

本発明によれば、給電箇所に接続された同軸ケーブルなどの絶縁抵抗の異常、ショートなどの不良を、絶縁抵抗計やテスターなどで容易に発見することができる。   According to the present invention, it is possible to easily detect an abnormality in insulation resistance such as a coaxial cable connected to a feeding point or a defect such as a short circuit using an insulation resistance meter or a tester.

本発明の実施形態１に係る静電結合型アンテナの第１の例を示す図The figure which shows the 1st example of the electrostatic coupling type antenna which concerns on Embodiment 1 of this invention. 本発明の実施形態１に係る静電結合型アンテナの第２の例を示す図The figure which shows the 2nd example of the electrostatic coupling type antenna which concerns on Embodiment 1 of this invention. 本発明の実施形態１に係る静電結合型アンテナの第３の例を示す図The figure which shows the 3rd example of the electrostatic coupling type antenna which concerns on Embodiment 1 of this invention. ヘンテナ、および、各静電結合型アンテナのリターンロスを示す図Figure showing return loss of Hentena and each capacitively coupled antenna ヘンテナ、および、各静電結合型アンテナの最大利得を示す図Figure showing maximum gain of Hentena and each capacitively coupled antenna 本発明の実施形態１に係る静電結合型アンテナの第４の例を示す図The figure which shows the 4th example of the electrostatic coupling type antenna which concerns on Embodiment 1 of this invention. 静電結合型アンテナのリターンロスを示す図The figure which shows the return loss of the electrostatic coupling type antenna 静電結合型アンテナの最大利得を示す図Diagram showing maximum gain of capacitively coupled antenna 本発明の実施形態１に係る静電結合型アンテナの第５の例を示す図The figure which shows the 5th example of the electrostatic coupling type antenna which concerns on Embodiment 1 of this invention. 静電結合型アンテナのリターンロスを示す図The figure which shows the return loss of the electrostatic coupling type antenna 静電結合型アンテナの最大利得を示す図Diagram showing maximum gain of capacitively coupled antenna 本発明の実施形態２に係る静電結合型アンテナの一例を示す図The figure which shows an example of the electrostatic coupling type antenna which concerns on Embodiment 2 of this invention 従来のヘンテナの一例を示す図A diagram showing an example of a conventional hentena ループ数が異なる従来のヘンテナの一例を示す図A diagram showing an example of a conventional henna with different number of loops ループ数が異なる従来のヘンテナの一例を示す図A diagram showing an example of a conventional henna with different number of loops ループ数が異なる従来のヘンテナの一例を示す図A diagram showing an example of a conventional henna with different number of loops 従来のヘンテナのリターンロスを示す図A diagram showing the return loss of conventional Hentena 従来のヘンテナの最大利得を示す図Diagram showing maximum gain of conventional hentena

以下に、本発明の実施形態について、図面を参照して詳細に説明する。   Embodiments of the present invention will be described below in detail with reference to the drawings.

（実施形態１）
図１は、本発明の実施形態１に係る静電結合型アンテナの第１の例を示す図である。図１（Ａ）は、静電結合型アンテナ１０ａの一方の面を示しており、図１（Ｂ）は、静電結合型アンテナ１０ａの他方の面を示している。 (Embodiment 1)
FIG. 1 is a diagram showing a first example of a capacitively coupled antenna according to Embodiment 1 of the present invention. 1A shows one surface of the electrostatic coupling antenna 10a, and FIG. 1B shows the other surface of the electrostatic coupling antenna 10a.

この静電結合型アンテナ１０ａは、基板１１ａ、第１の導体１２ａ、第２の導体１３ａを具備する。基板１１ａは、第１の導体１２ａ、第２の導体１３ａが形成される板状の部品である。   The electrostatic coupling antenna 10a includes a substrate 11a, a first conductor 12a, and a second conductor 13a. The substrate 11a is a plate-like component on which the first conductor 12a and the second conductor 13a are formed.

例えば、この基板１１ａの材質は、Ｆｒａｍｅ Ｒｅｔａｒｄａｎｔ Ｔｙｐｅ ４（ＦＲ−４）であり、厚さは１ｍｍ、比誘電率は４．４、誘電正接は０．０２である。ただし、基板１１ａはこれに限定されることなく、他の種類の基板を用いることとしてもよい。   For example, the material of the substrate 11a is Frame Regentant Type 4 (FR-4), the thickness is 1 mm, the relative dielectric constant is 4.4, and the dielectric loss tangent is 0.02. However, the substrate 11a is not limited to this, and other types of substrates may be used.

第１の導体１２ａは、基板１１ａの一方の面に形成される導体である。例えば、第１の導体１２ａとして、厚さが３５μｍの銅箔などが用いられる。ただし、第１の導体１２ａはこれに限定されるものではない。図１（Ａ）に示すように、第１の導体１２ａは、基板１１ａの周辺領域にループを形成している。   The first conductor 12a is a conductor formed on one surface of the substrate 11a. For example, a copper foil having a thickness of 35 μm is used as the first conductor 12a. However, the first conductor 12a is not limited to this. As shown in FIG. 1A, the first conductor 12a forms a loop in the peripheral region of the substrate 11a.

第２の導体１３ａは、基板１１ａの他方の面に、第１の導体１２ａと短絡することなく形成される導体である。第１の導体１２ａと同様に、第２の導体１３ａとして、例えば厚さが３５μｍの銅箔などが用いられる。ただし、第２の導体１３ａはこれに限定されるものではない。   The second conductor 13a is a conductor formed on the other surface of the substrate 11a without being short-circuited with the first conductor 12a. Similarly to the first conductor 12a, a copper foil having a thickness of 35 μm, for example, is used as the second conductor 13a. However, the second conductor 13a is not limited to this.

また、図１（Ｂ）に示すように、第２の導体１３ａに含まれる２つの対向する領域は、静電結合型アンテナ１０ａに給電を行う給電箇所１４ａとなっている。そして、給電部分１４ａにおける第２の導体１３ａの幅は、給電箇所１４ａ以外の第２の導体１３ａの幅よりも広くなっている。この給電箇所には、例えば、同軸ケーブルなどが接続される。   Further, as shown in FIG. 1B, two opposing regions included in the second conductor 13a serve as a feeding point 14a that feeds power to the electrostatic coupling antenna 10a. And the width | variety of the 2nd conductor 13a in the electric power feeding part 14a is wider than the width | variety of the 2nd conductors 13a other than the electric power feeding location 14a. For example, a coaxial cable or the like is connected to the power feeding location.

そして、第２の導体１３ａは、給電箇所１４ａにおいて交流電源による給電がなされることにより、第１の導体１２ａと静電結合する。これにより、たとえ第１の導体１２ａと第２の導体１３ａとが短絡されていなくとも、静電結合型アンテナ１０ａはアンテナとして機能する。   The second conductor 13a is electrostatically coupled to the first conductor 12a by being fed by an AC power source at the feeding point 14a. Thereby, even if the 1st conductor 12a and the 2nd conductor 13a are not short-circuited, the electrostatic coupling type antenna 10a functions as an antenna.

図２は、本発明の実施形態１に係る静電結合型アンテナの第２の例を示す図である。図２（Ａ）は、静電結合型アンテナ１０ｂの一方の面を示しており、図２（Ｂ）は、静電結合型アンテナ１０ｂの他方の面を示している。   FIG. 2 is a diagram illustrating a second example of the electrostatic coupling antenna according to the first embodiment of the present invention. 2A shows one surface of the electrostatic coupling antenna 10b, and FIG. 2B shows the other surface of the electrostatic coupling antenna 10b.

この静電結合型アンテナ１０ｂは、基板１１ｂ、第１の導体１２ｂ、第２の導体１３ｂを具備する。基板１１ｂは、第１の導体１２ｂ、第２の導体１３ｂが形成される板状の部品である。   The electrostatic coupling antenna 10b includes a substrate 11b, a first conductor 12b, and a second conductor 13b. The substrate 11b is a plate-like component on which the first conductor 12b and the second conductor 13b are formed.

例えば、この基板１１ｂの材質は、図１で説明した基板１１ａの材質と同様のものである。また、第１の導体１２ｂ、第２の導体１３ｂの材質も、図１で説明した第１の導体１２ａ、第２の導体１３ａの材質と同様のものである。   For example, the material of the substrate 11b is the same as the material of the substrate 11a described in FIG. The materials of the first conductor 12b and the second conductor 13b are the same as the materials of the first conductor 12a and the second conductor 13a described in FIG.

第１の導体１２ｂに含まれる２つの導体部分は互いに対向する。また、第２の導体１３ｂに含まれる２つの導体部分は、第１の導体１２ｂに含まれる２つの導体部分と９０度異なる方向において互いに対向し、その第２の導体１３ｂに含まれる２つの導体部分と給電箇所１４ｂとは短絡される。   Two conductor portions included in the first conductor 12b face each other. In addition, the two conductor portions included in the second conductor 13b are opposed to each other in a direction different by 90 degrees from the two conductor portions included in the first conductor 12b, and the two conductors included in the second conductor 13b. The part and the feeding point 14b are short-circuited.

図３は、本発明の実施形態１に係る静電結合型アンテナの第３の例を示す図である。図３（Ａ）は、静電結合型アンテナ１０ｃの一方の面を示しており、図３（Ｂ）は、静電結合型アンテナ１０ｃの他方の面を示している。   FIG. 3 is a diagram illustrating a third example of the electrostatic coupling antenna according to the first embodiment of the present invention. 3A shows one surface of the electrostatic coupling antenna 10c, and FIG. 3B shows the other surface of the electrostatic coupling antenna 10c.

この静電結合型アンテナ１０ｃは、基板１１ｃ、第１の導体１２ｃ、第２の導体１３ｃを具備する。基板１１ｃは、第１の導体１２ｃ、第２の導体１３ｃが形成される板状の部品である。   The electrostatic coupling antenna 10c includes a substrate 11c, a first conductor 12c, and a second conductor 13c. The substrate 11c is a plate-like component on which the first conductor 12c and the second conductor 13c are formed.

例えば、この基板１１ｃの材質は、図１で説明した基板１１ａの材質と同様のものである。また、第１の導体１２ｃ、第２の導体１３ｃの材質も、図１で説明した第１の導体１２ａ、第２の導体１３ａの材質と同様のものである。   For example, the material of the substrate 11c is the same as the material of the substrate 11a described in FIG. The materials of the first conductor 12c and the second conductor 13c are the same as the materials of the first conductor 12a and the second conductor 13a described in FIG.

第１の導体１２ｃに含まれる２つの導体部分は互いに対向する。また、第２の導体１３ｃに含まれる２つの導体部分は、第１の導体１２ｃに含まれる２つの導体部分と９０度異なる方向において互いに対向している。しかし、図３の例では、図２の例とは異なり、その第２の導体１３ｃに含まれる２つの導体部分と給電箇所１４ｃとは短絡されていない。   The two conductor portions included in the first conductor 12c face each other. Further, the two conductor portions included in the second conductor 13c are opposed to each other in a direction 90 degrees different from the two conductor portions included in the first conductor 12c. However, in the example of FIG. 3, unlike the example of FIG. 2, the two conductor portions included in the second conductor 13c and the feeding point 14c are not short-circuited.

図４、図５には、図１３に示した従来のヘンテナ１ａ、および、各静電結合型アンテナ１０ａ〜１０ｃのシミュレーション解析の結果が示されている。図４は、ヘンテナ１ａ、および、各静電結合型アンテナ１０ａ〜１０ｃのリターンロスを示す図であり、図５は、ヘンテナ１ａ、および、各静電結合型アンテナ１０ａ〜１０ｃの最大利得を示す図である。   4 and 5 show the results of simulation analysis of the conventional henna 1a shown in FIG. 13 and each of the electrostatic coupling antennas 10a to 10c. FIG. 4 is a diagram illustrating the return loss of the hentena 1a and each of the electrostatic coupling antennas 10a to 10c. FIG. 5 is a diagram illustrating the maximum gain of the hentena 1a and each of the electrostatic coupling antennas 10a to 10c. FIG.

静電結合型アンテナ１０ａ〜１０ｃでは、静電結合によりインピーダンスが変化する。その結果、図４に示されるように、素子の大きさの割に共振周波数が高くなる。また、共振周波数がマルチバンド化される。さらに、図５に示されるように、最大利得も大きくなる。   In the electrostatic coupling antennas 10a to 10c, the impedance changes due to electrostatic coupling. As a result, as shown in FIG. 4, the resonance frequency becomes higher for the size of the element. Further, the resonance frequency is made multiband. Furthermore, as shown in FIG. 5, the maximum gain also increases.

図６は、本発明の実施形態１に係る静電結合型アンテナの第４の例を示す図である。図６（Ａ）は、静電結合型アンテナ１０ｄの一方の面を示しており、図６（Ｂ）は、静電結合型アンテナ１０ｄの他方の面を示している。   FIG. 6 is a diagram illustrating a fourth example of the electrostatic coupling antenna according to the first embodiment of the present invention. FIG. 6A shows one surface of the electrostatic coupling antenna 10d, and FIG. 6B shows the other surface of the electrostatic coupling antenna 10d.

この静電結合型アンテナ１０ｄは、基板１１ｄ、第１の導体１２ｄ、第２の導体１３ｄを具備する。基板１１ｄは、第１の導体１２ｄ、第２の導体１３ｄが形成される板状の部品である。   The electrostatic coupling antenna 10d includes a substrate 11d, a first conductor 12d, and a second conductor 13d. The substrate 11d is a plate-like component on which the first conductor 12d and the second conductor 13d are formed.

例えば、この基板１１ｄの材質は、図１で説明した基板１１ａの材質と同様のものである。また、第１の導体１２ｄ、第２の導体１３ｄの材質も、図１で説明した第１の導体１２ａ、第２の導体１３ａの材質と同様のものである。   For example, the material of the substrate 11d is the same as the material of the substrate 11a described in FIG. The materials of the first conductor 12d and the second conductor 13d are also the same as the materials of the first conductor 12a and the second conductor 13a described in FIG.

第１の導体１２ｄは、ループを形成する。また、第２の導体１３ｄに含まれる２つの導体部分は、給電箇所１４ｄにおいて互いに対向するが、第２の導体１３ｄの幅は、図１の場合と異なり一定である。   The first conductor 12d forms a loop. The two conductor portions included in the second conductor 13d are opposed to each other at the feeding point 14d, but the width of the second conductor 13d is constant unlike the case of FIG.

図７、図８には、静電結合型アンテナ１０ｄのシミュレーション解析の結果が示されている。図７は、静電結合型アンテナ１０ｄのリターンロスを示す図であり、図８は、静電結合型アンテナ１０ｄの最大利得を示す図である。   7 and 8 show the results of simulation analysis of the electrostatic coupling antenna 10d. FIG. 7 is a diagram showing the return loss of the electrostatic coupling antenna 10d, and FIG. 8 is a diagram showing the maximum gain of the electrostatic coupling antenna 10d.

図６に示した静電結合型アンテナ１０ｄでも、図１〜図３に示した静電結合型アンテナ１０ａ〜１０ｃと同様に、静電結合によりインピーダンスが変化する。その結果、図７に示されるように、素子の大きさの割に共振周波数が高くなる。また、共振周波数がマルチバンド化される。さらに、図８に示されるように、最大利得も大きくなる。   Also in the electrostatic coupling antenna 10d shown in FIG. 6, the impedance changes due to electrostatic coupling, similarly to the electrostatic coupling antennas 10a to 10c shown in FIGS. As a result, as shown in FIG. 7, the resonance frequency becomes higher for the size of the element. Further, the resonance frequency is made multiband. Furthermore, as shown in FIG. 8, the maximum gain also increases.

図９は、本発明の実施形態１に係る静電結合型アンテナの第５の例を示す図である。図９（Ａ）は、静電結合型アンテナ１０ｅの一方の面を示しており、図９（Ｂ）は、静電結合型アンテナ１０ｅの他方の面を示している。   FIG. 9 is a diagram illustrating a fifth example of the electrostatic coupling antenna according to the first embodiment of the present invention. FIG. 9A shows one surface of the electrostatic coupling antenna 10e, and FIG. 9B shows the other surface of the electrostatic coupling antenna 10e.

この静電結合型アンテナ１０ｅは、基板１１ｅ、第１の導体１２ｅ、第２の導体１３ｅを具備する。基板１１ｅは、第１の導体１２ｅ、第２の導体１３ｅが形成される板状の部品である。   The electrostatic coupling antenna 10e includes a substrate 11e, a first conductor 12e, and a second conductor 13e. The substrate 11e is a plate-like component on which the first conductor 12e and the second conductor 13e are formed.

例えば、この基板１１ｅの材質は、図１で説明した基板１１ａの材質と同様のものである。また、第１の導体１２ｅ、第２の導体１３ｅの材質も、図１で説明した第１の導体１２ａ、第２の導体１３ａの材質と同様のものである。ただし、第１の導体１２ｅは、ループ状に断続的に形成される。   For example, the material of the substrate 11e is the same as the material of the substrate 11a described in FIG. The materials of the first conductor 12e and the second conductor 13e are the same as the materials of the first conductor 12a and the second conductor 13a described in FIG. However, the first conductor 12e is intermittently formed in a loop shape.

図１０、図１１には、静電結合型アンテナ１０ｅのシミュレーション解析の結果が示されている。図１０は、静電結合型アンテナ１０ｅのリターンロスを示す図であり、図１１は、静電結合型アンテナ１０ｅの最大利得を示す図である。   10 and 11 show the results of simulation analysis of the electrostatic coupling antenna 10e. FIG. 10 is a diagram illustrating the return loss of the electrostatic coupling antenna 10e, and FIG. 11 is a diagram illustrating the maximum gain of the electrostatic coupling antenna 10e.

図９に示した静電結合型アンテナ１０ｅでも、図１〜図３に示した静電結合型アンテナ１０ａ〜１０ｃと同様に、静電結合によりインピーダンスが変化する。その結果、図１０に示されるように、素子の大きさの割に共振周波数が高くなる。また、共振周波数がマルチバンド化される。さらに、図１１に示されるように、最大利得も大きくなる。   Also in the electrostatic coupling antenna 10e shown in FIG. 9, the impedance changes due to electrostatic coupling, similarly to the electrostatic coupling antennas 10a to 10c shown in FIGS. As a result, as shown in FIG. 10, the resonance frequency becomes higher for the size of the element. Further, the resonance frequency is made multiband. Furthermore, as shown in FIG. 11, the maximum gain also increases.

上述してきたように、本実施形態１では、第１の導体１２ａ〜１２ｅと、第１の導体１２ａ〜１２ｅと短絡することなく形成され、給電されることにより第１の導体１２ａ〜１２ｅと静電結合する第２の導体１３ａ〜１３ｅと、を具備し、第２の導体１３ａ〜１３ｅの給電箇所１４ａ〜１４ｅは、第１の導体１２ａ〜１２ｅと、給電箇所１４ａ〜１４ｅ以外の第２の導体１３ａ〜１３ｅとの少なくとも一方の内側領域に形成されることとした。   As described above, in the first embodiment, the first conductors 12a to 12e are formed without being short-circuited with the first conductors 12a to 12e, and the first conductors 12a to 12e and the first conductors 12a to 12e are statically fed by being fed. Second conductors 13a to 13e that are electrically coupled, and the power feeding locations 14a to 14e of the second conductors 13a to 13e are second conductors other than the first conductors 12a to 12e and the power feeding locations 14a to 14e. The conductors 13a to 13e are formed in at least one inner region.

この構成では、第２の導体１３ａ〜１３ｅが第１の導体１２ａ〜１２ｅと短絡することなく形成されているので、給電箇所１４ａ〜１４ｅに接続された同軸ケーブルなどの絶縁抵抗の異常、ショートなどの不良を、絶縁抵抗計やテスターなどで容易に発見することができる。   In this configuration, since the second conductors 13a to 13e are formed without being short-circuited with the first conductors 12a to 12e, an abnormality in insulation resistance such as a coaxial cable connected to the power feeding locations 14a to 14e, a short circuit, or the like Can be easily detected with an insulation resistance meter or a tester.

（実施形態２）
図１２は、本発明の実施形態２に係る静電結合型アンテナの一例を示す図である。この静電結合型アンテナ１０ｆは、基板１１ｆ、第１の導体１２ｆ、第２の導体１３ｆを具備する。基板１１ｆは、第１の導体１２ｆ、第２の導体１３ｆが形成される板状の部品である。 (Embodiment 2)
FIG. 12 is a diagram illustrating an example of the electrostatic coupling antenna according to the second embodiment of the present invention. The electrostatic coupling antenna 10f includes a substrate 11f, a first conductor 12f, and a second conductor 13f. The substrate 11f is a plate-like component on which the first conductor 12f and the second conductor 13f are formed.

例えば、この基板１１ｆの材質は、図１で説明した基板１１ａの材質と同様のものである。また、第１の導体１２ｆ、第２の導体１３ｆの材質も、図１で説明した第１の導体１２ａ、第２の導体１３ａの材質と同様のものである。   For example, the material of the substrate 11f is the same as the material of the substrate 11a described in FIG. The materials of the first conductor 12f and the second conductor 13f are also the same as the materials of the first conductor 12a and the second conductor 13a described in FIG.

この静電結合型アンテナ１０ｆは、実施形態１で説明した静電結合型アンテナ１０ａ〜１０ｅと異なり、第１の導体１１ｆ、および、第２の導体１３ｆが、基板１１ｆの同一の面に設けられる。ここで、第２の導体１３ｆは、第１の導体１２ｆと短絡することなく形成される。   The electrostatic coupling antenna 10f is different from the electrostatic coupling antennas 10a to 10e described in the first embodiment, and the first conductor 11f and the second conductor 13f are provided on the same surface of the substrate 11f. . Here, the second conductor 13f is formed without being short-circuited with the first conductor 12f.

このような構成でも、第２の導体１３ｆが第１の導体１２ｆと短絡することなく形成されていることにより、給電箇所１４ｆに接続された同軸ケーブルなどの絶縁抵抗の異常、ショートなどの不良を、絶縁抵抗計やテスターなどで容易に発見することができる。   Even in such a configuration, since the second conductor 13f is formed without being short-circuited with the first conductor 12f, an abnormality in insulation resistance such as a coaxial cable connected to the feeding point 14f, or a defect such as a short circuit can be prevented. It can be easily found with an insulation resistance meter or a tester.

１ａ〜１ｄ ヘンテナ
２ａ〜２ｄ，１１ａ〜１１ｆ 基板
３ａ〜３ｄ 銅箔
４ａ〜４ｄ，１４ａ〜１４ｆ 給電箇所
１０ａ〜１０ｆ 静電結合型アンテナ
１２ａ〜１２ｆ 第１の導体
１３ａ〜１３ｆ 第２の導体
1a to 1d Hentenna 2a to 2d, 11a to 11f Substrate 3a to 3d Copper foil 4a to 4d, 14a to 14f Feeding point 10a to 10f Electrostatic coupling antenna 12a to 12f First conductor 13a to 13f Second conductor

Claims (9)

第１の導体と、
前記第１の導体と短絡することなく形成され、給電されることにより前記第１の導体と静電結合する第２の導体と、を具備し、
前記第２の導体の給電箇所は、前記第１の導体と、前記給電箇所以外の前記第２の導体との少なくとも一方の内側領域に形成される静電結合型アンテナ。 A first conductor;
A second conductor that is formed without being short-circuited with the first conductor and is electrostatically coupled to the first conductor by being supplied with power,
The feeding position of the second conductor is an electrostatic coupling antenna formed in at least one inner region of the first conductor and the second conductor other than the feeding position. 前記第１の導体、および、前記第２の導体が形成される基板をさらに具備する請求項１に記載の静電結合型アンテナ。   The capacitively coupled antenna according to claim 1, further comprising a substrate on which the first conductor and the second conductor are formed. 前記第１の導体は前記基板の一方の面に、前記第２の導体は前記基板の他方の面に設けられる請求項２に記載の静電結合型アンテナ。   The electrostatic coupling antenna according to claim 2, wherein the first conductor is provided on one surface of the substrate, and the second conductor is provided on the other surface of the substrate. 前記第１の導体は、ループを形成する請求項３に記載の静電結合型アンテナ。   The electrostatic coupling antenna according to claim 3, wherein the first conductor forms a loop. 前記第２の導体に含まれる２つの導体部分は、前記給電箇所において互いに対向し、前記給電箇所における第２の導体の幅は、前記給電部分以外の第２の導体の幅よりも広い請求項２〜４のいずれか１項に記載の静電結合型アンテナ。   The two conductor portions included in the second conductor are opposed to each other at the power feeding location, and the width of the second conductor at the power feeding location is wider than the width of the second conductor other than the power feeding portion. The electrostatic coupling type antenna of any one of 2-4. 前記第１の導体に含まれる２つの導体部分は互いに対向し、前記第２の導体に含まれる２つの導体部分は、前記第１の導体に含まれる２つの導体部分と９０度異なる方向において互いに対向し、前記第２の導体に含まれる２つの導体部分と前記給電箇所とは短絡される請求項２または３に記載の静電結合型アンテナ。   Two conductor portions included in the first conductor are opposed to each other, and the two conductor portions included in the second conductor are mutually different in a direction 90 degrees different from the two conductor portions included in the first conductor. The electrostatic coupling antenna according to claim 2, wherein the two conductor portions that are opposed to each other and are short-circuited between the two conductor portions and the feeding point. 前記第１の導体に含まれる２つの導体部分は互いに対向し、前記第２の導体に含まれる２つの導体部分は、前記第１の導体に含まれる２つの導体部分と９０度異なる方向において互いに対向し、前記第２の導体に含まれる２つの導体部分と前記給電箇所とが短絡されない請求項２または３に記載の静電結合型アンテナ。   Two conductor portions included in the first conductor are opposed to each other, and the two conductor portions included in the second conductor are mutually different in a direction 90 degrees different from the two conductor portions included in the first conductor. The electrostatic coupling antenna according to claim 2 or 3, wherein the two conductor portions that are opposed to each other and are not short-circuited with each other, are not short-circuited. 前記第１の導体は、ループ状に断続的に形成される請求項２または３に記載の静電結合型アンテナ。   The electrostatic coupling antenna according to claim 2, wherein the first conductor is intermittently formed in a loop shape. 前記第１の導体、および、前記第２の導体は、前記基板の同一の面に設けられる請求項２に記載の静電結合型アンテナ。
The electrostatic coupling antenna according to claim 2, wherein the first conductor and the second conductor are provided on the same surface of the substrate.
JP2013203658A 2013-09-30 2013-09-30 Electrostatic coupling antenna Pending JP2015070478A (en)

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Citations (3)

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JP2000196337A (en) * 1998-12-24 2000-07-14 Yuhshin Co Ltd Antenna system
JP2004266500A (en) * 2003-02-28 2004-09-24 Nippon Plast Co Ltd Antenna
JP2005203854A (en) * 2004-01-13 2005-07-28 Toshiba Corp Loop antenna and wireless communication apparatus equipped with loop antenna

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JP2002271128A (en) * 2001-03-13 2002-09-20 Sansei Denki Kk Simple high-gain planar antenna and method for constituting the same, and wireless lan
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000196337A (en) * 1998-12-24 2000-07-14 Yuhshin Co Ltd Antenna system
JP2004266500A (en) * 2003-02-28 2004-09-24 Nippon Plast Co Ltd Antenna
JP2005203854A (en) * 2004-01-13 2005-07-28 Toshiba Corp Loop antenna and wireless communication apparatus equipped with loop antenna

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