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JP5078732B2 - Antenna device - Google Patents

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JP5078732B2
JP5078732B2 JP2008115818A JP2008115818A JP5078732B2 JP 5078732 B2 JP5078732 B2 JP 5078732B2 JP 2008115818 A JP2008115818 A JP 2008115818A JP 2008115818 A JP2008115818 A JP 2008115818A JP 5078732 B2 JP5078732 B2 JP 5078732B2
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radiating element
ground conductor
line
feeder
conductor
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JP2009267806A (en
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徹 深沢
英征 大橋
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Mitsubishi Electric Corp
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Description

この発明は、携帯電話等の基地局に用いられるアンテナ装置に関するものである。   The present invention relates to an antenna device used in a base station such as a mobile phone.

携帯電話の基地局アンテナとして、アンテナ素子を大地に対して垂直方向に配列したコリニアアレーアンテナが用いられる。複数の無線システムに対応するため、複数帯域に対応したコリニアアレーアンテナが求められている。また、風圧加重の観点から、アンテナ性能を維持しつつ、アンテナ長を短くすることが求められている。さらに、１つの基地局で全方向をカバーするために、水平方向で無指向性のアンテナが求められている。   As a base station antenna for a mobile phone, a collinear array antenna in which antenna elements are arranged in a direction perpendicular to the ground is used. In order to support a plurality of radio systems, a collinear array antenna corresponding to a plurality of bands is required. Also, from the viewpoint of wind pressure weighting, it is required to shorten the antenna length while maintaining the antenna performance. Furthermore, in order to cover all directions with one base station, an omnidirectional antenna is required in the horizontal direction.

従来のアンテナ装置について図１１を参照しながら説明する。図１１は、従来のアンテナ装置の構成を示す図である（例えば、特許文献１参照）。   A conventional antenna device will be described with reference to FIG. FIG. 11 is a diagram illustrating a configuration of a conventional antenna device (see, for example, Patent Document 1).

図１１に示されたアンテナ装置は、２つのコリニアアレーアンテナを一体に構成するためのものである。このアンテナ装置では、ダイバーシチを実現するため、２つのコリニアアレーアンテナを同一周波数にて動作させるものであるが、この周波数を異なるように設計することで複数帯域に対応することが可能となる。   The antenna device shown in FIG. 11 is for integrally configuring two collinear array antennas. In this antenna apparatus, in order to realize diversity, two collinear array antennas are operated at the same frequency, but it is possible to cope with a plurality of bands by designing these frequencies to be different.

図１１において、第１のコリニアアンテナ２１と第２のコリニアアンテナ２２が上下方向に配置されている。第１のコリニアアンテナ２１は多段同軸ダイポールで構成されており、同軸の内導体の内側に第２のコリニアアンテナ２２のための給電線が配置されている。本構成のアンテナ装置では、第２のコリニアアンテナ２２の給電線が第１のコリニアアンテナ２１の放射電波が弱い部分に配置されるため、第２のコリニアアンテナ２２の給電線が第１のコリニアアンテナ２１の放射パターンを乱すことがないという利点がある。また、アンテナ全体が軸対称構造を有しているため、水平面内において無指向性が得られるという利点がある。   In FIG. 11, a first collinear antenna 21 and a second collinear antenna 22 are arranged in the vertical direction. The first collinear antenna 21 is composed of a multistage coaxial dipole, and a feed line for the second collinear antenna 22 is arranged inside the coaxial inner conductor. In the antenna device of this configuration, the feed line of the second collinear antenna 22 is arranged in a portion where the radiated radio wave of the first collinear antenna 21 is weak, so the feed line of the second collinear antenna 22 is the first collinear antenna. There is an advantage that the radiation pattern of 21 is not disturbed. Further, since the entire antenna has an axially symmetric structure, there is an advantage that omnidirectionality can be obtained in a horizontal plane.

特開平５−２６７９３２号公報JP-A-5-267932

しかしながら、上述したような従来のアンテナ装置では、２つのアンテナが上下方向に配置されているため、同じアンテナ利得を得るために２倍の長さが必要という問題点があった。   However, the conventional antenna apparatus as described above has a problem in that two antennas are arranged in the vertical direction, so that the length is twice as long to obtain the same antenna gain.

この発明は、上述のような課題を解決するためになされたもので、その目的は、アンテナ性能を維持しつつ、２つのコリニアアンテナを１つの場合と同じ長さで実現することができるアンテナ装置を得るものである。   The present invention has been made to solve the above-described problems, and an object of the present invention is to realize an antenna device capable of realizing two collinear antennas with the same length as a single case while maintaining antenna performance. Is what you get.

この発明に係るアンテナ装置は、細長い地導体と、前記地導体と同一平面内に平行に配置され、長手方向の中央近傍で前記地導体に短絡された細長い第１の放射素子と、前記地導体に対して前記第１の放射素子と反対側の線対称の位置に、前記地導体と同一平面内に平行に配置され、長手方向の中央近傍で前記地導体に短絡された細長い第２の放射素子と、前記第１の放射素子に対して前記地導体と反対側に、前記第１の放射素子と同一平面内に平行に配置された細長い第３の放射素子と、前記地導体に対して前記第３の放射素子と反対側の線対称の位置に、前記地導体と同一平面内に平行に配置された細長い第４の放射素子と、前記地導体及び前記第１の放射素子の間に接続された第１の給電線と、前記第１の放射素子及び前記第３の放射素子の間に接続された第２の給電線とを設け、前記第１の放射素子及び前記第２の放射素子に接続され、かつ前記地導体の長手方向に垂直な周囲に配置された第１の筒状導体と、前記第３の放射素子及び前記第４の放射素子に接続され、かつ前記第１の筒状導体の長手方向に垂直な周囲に配置された第２の筒状導体とをさらに備えたものである。

An antenna device according to the present invention includes an elongated ground conductor, a first elongated radiating element disposed in parallel with the ground conductor in the same plane, and short-circuited to the ground conductor in the vicinity of the center in the longitudinal direction, and the ground conductor The second elongated radiation arranged in parallel with the ground conductor in the same plane on the opposite side of the first radiation element with respect to the first radiation element and short-circuited to the ground conductor in the vicinity of the center in the longitudinal direction. An element, an elongated third radiating element disposed in parallel to the first radiating element in the same plane on the opposite side of the ground conductor as to the first radiating element, and to the ground conductor Between the ground conductor and the first radiating element, an elongated fourth radiating element arranged in parallel with the ground conductor in a line symmetrical position on the opposite side of the third radiating element, and the ground conductor and the first radiating element The connected first feeder, the first radiating element and the third radiating element A second feed line connected between the child provided, first connected to said first radiating element and said second radiating element, and arranged around perpendicular to the longitudinal direction of the ground conductor 1 And a second cylindrical conductor connected to the third radiating element and the fourth radiating element, and arranged around the first cylindrical conductor in the longitudinal direction. In addition .

この発明に係るアンテナ装置は、アンテナ性能を維持しつつ、２つのコリニアアンテナを１つの場合と同じ長さで実現することができるという効果を奏する。   The antenna device according to the present invention has an effect that two collinear antennas can be realized with the same length as in the case of one while maintaining antenna performance.

実施の形態１．
この発明の実施の形態１に係るアンテナ装置について図１及び図２を参照しながら説明する。図１は、この発明の実施の形態１に係るアンテナ装置の構成を示す図である。なお、以降では、各図中、同一符号は同一又は相当部分を示す。 Embodiment 1 FIG.
An antenna device according to Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 1 is a diagram showing a configuration of an antenna apparatus according to Embodiment 1 of the present invention. In the following, in each figure, the same reference numerals indicate the same or corresponding parts.

図１において、この発明の実施の形態１に係るアンテナ装置は、第１の放射素子１と、第２の放射素子２と、第３の放射素子３と、第４の放射素子４と、地導体５と、第１の給電線６と、第２の給電線７とが設けられている。   In FIG. 1, an antenna device according to Embodiment 1 of the present invention includes a first radiating element 1, a second radiating element 2, a third radiating element 3, a fourth radiating element 4, and a ground. A conductor 5, a first power supply line 6, and a second power supply line 7 are provided.

地導体５は、細長い長方形で構成されており、長さ（図上縦方向）、幅（図上横方向）にくらべて厚み（図上奥行き方向）が十分に薄い平面状の銅等の金属の導体から構成される。この地導体５の幅の両端からλ１／１００程度の距離をそれぞれ離して、地導体５と同一平面内に、かつ地導体５の長手方向に対して左右対称（線対称）になるように、第１の放射素子１と、第２の放射素子２とをそれぞれ配置する。ここで、λ１は第１の周波数に於ける波長である。すなわち、地導体５と第１の放射素子１の間の空間の距離、地導体５と第２の放射素子２の間の空間の距離がλ１／１００程度である。 The ground conductor 5 is formed in a long and narrow rectangle, and is a flat metal such as copper having a sufficiently thin thickness (depth direction in the figure) compared to the length (vertical direction in the figure) and width (lateral direction in the figure). It is composed of conductors. At a distance across from λ approximately 1/100 of the width of the ground conductor 5, respectively, in the ground conductor 5 and the same plane, and so as to be symmetrical (line symmetry) with respect to the longitudinal direction of the ground conductor 5 The first radiating element 1 and the second radiating element 2 are arranged. Here, λ 1 is the wavelength at the first frequency. That is, the distance of the space between the ground conductor 5 of the first radiating element 1, a distance λ approximately 1/100 of the space between the ground conductor 5 of the second radiating element 2.

第１の放射素子１と第２の放射素子２は、細長い長方形で構成されており、長さ方向にはλ１／２程度の電気長を有している。第１の放射素子１と第２の放射素子２は、長手方向の中央付近で、地導体５の短絡部を通じて、地導体５に導通されている。 The first radiating element 1 and the second radiating element 2 are formed in an elongated rectangle, and have an electrical length of about λ 1/2 in the length direction. The first radiating element 1 and the second radiating element 2 are electrically connected to the ground conductor 5 through the short-circuit portion of the ground conductor 5 near the center in the longitudinal direction.

地導体５と第１の放射素子１の間に第１の給電線６を配置する。この第１の給電線６は、第１の放射素子１の長手方向の中央付近からλ１／１０程度離れた位置に配置される。 A first feeder 6 is disposed between the ground conductor 5 and the first radiating element 1. The first feed line 6 is disposed in a first longitudinal position spaced degree lambda 1/10 from near the center of the radiating element 1.

第１の放射素子１の幅の左端、第２の放射素子２の幅の右端からλ２／１００程度の距離を離して、地導体５と同一平面内に、かつ地導体５の長手方向に対して左右対称（線対称）になるように、かつ第１の放射素子１に対して地導体５とは反対側になる部分に第３の放射素子３を、第２の放射素子２に対して地導体５とは反対側になる部分に第４の放射素子４をそれぞれ配置する。また、第１から第４の放射素子１〜４の長手方向の中心は、地導体５の幅方向に対してそろうように配置される。ここで、λ２は第２の周波数に於ける波長である。すなわち、第１の放射素子１と第３の放射素子３の間の空間の距離、第２の放射素子２と第４の放射素子４の間の空間の距離がλ２／１００程度である。 Leftmost first width of the radiating element 1, release the second distance rightmost from about lambda 2/100 of the width of the radiating element 2, the ground conductor 5 and the same plane, and the longitudinal direction of the ground conductor 5 The third radiating element 3 is arranged on the side opposite to the ground conductor 5 with respect to the first radiating element 1 so as to be bilaterally symmetric (line symmetric) with respect to the first radiating element 1. The fourth radiating element 4 is disposed on the part opposite to the ground conductor 5. Further, the longitudinal centers of the first to fourth radiating elements 1 to 4 are arranged so as to be aligned with the width direction of the ground conductor 5. Here, λ 2 is the wavelength at the second frequency. That is, the distance of the space between the first radiating element 1 and the third radiating element 3, the distance space lambda 2/100 of about between the second radiating element 2 and the fourth radiating element 4.

第３の放射素子３と第４の放射素子４は、細長い長方形で構成されており、長さ方向にはλ２／２程度の電気長を有している。 A third radiating element 3 fourth radiating element 4 is composed of an elongated rectangle, the longitudinal direction has an electrical length of approximately λ 2/2.

第１の放射素子１と第３の放射素子３の間に第２の給電線７を配置する。この第２の給電線７は、第３の放射素子３の長手方向の中央付近からλ２／１０程度はなれた位置に配置される。 A second feeder 7 is arranged between the first radiating element 1 and the third radiating element 3. The second feed line 7, the third longitudinal approximately lambda 2/10 from near the center of the radiating element 3 of is located at a familiar.

つぎに、この実施の形態１に係るアンテナ装置の動作（原理）について図面を参照しながら説明する。図２は、図１に示した放射素子上の電流分布及びその近傍の電界分布を表す図である。   Next, the operation (principle) of the antenna device according to the first embodiment will be described with reference to the drawings. FIG. 2 is a diagram illustrating a current distribution on the radiating element illustrated in FIG. 1 and an electric field distribution in the vicinity thereof.

図２（ａ）は、第１の給電線６を給電した場合の動作を表しており、第１の周波数において使用する場合を表している。また、図２（ｂ）は、第２の給電線７を給電した場合の動作を表しており、第２の周波数において使用する場合を表している。図２（ａ）及び（ｂ）において、点線の矢印は電流の方向を表しており、実線の矢印は電界の方向を表している。電界の矢印に関してはその長さが電界強度を表している。   FIG. 2A shows an operation when the first power supply line 6 is supplied, and shows a case where the first power supply line 6 is used at the first frequency. FIG. 2B shows the operation when the second power supply line 7 is supplied, and shows the case of use at the second frequency. 2A and 2B, dotted arrows indicate the direction of current, and solid arrows indicate the direction of electric field. The length of the electric field arrow represents the electric field strength.

第１の放射素子１は、地導体５に対してλ１／１００程度に近接して配置されており、第１の放射素子１と地導体５に挟まれた間隙部に第１の周波数の半波長で共振する第１の共振空間を構成する。第１の給電線６は、第１の放射素子１の長手方向の中央付近からλ１／１０程度離れた位置に配置されているため、第１の周波数において図２（ａ）のような電流分布、および電界分布を生じる。以上のことは、たとえば”羽石、平澤、鈴木著、「小形・平面アンテナ」、コロナ社”のｐ９１に記載された方形マイクロストリップアンテナと同様な動作である。第１の共振空間における電界分布は、第１の放射素子１の長手方向の中央付近において電界が０になるため、その部分で地導体５と短絡してもその動作は変化しない。 First radiating element 1 is arranged close to λ approximately 1/100 with respect to the ground conductor 5, the first frequency to the gap sandwiched between the first radiating element 1 and the ground conductor 5 A first resonance space that resonates at a half wavelength is formed. The first feed line 6, since it is arranged in a first longitudinal position spaced degree lambda 1/10 from near the center of the radiating element 1, a current shown in FIG. 2 (a) in the first frequency Distribution, and electric field distribution. The above is the same operation as the rectangular microstrip antenna described on page 91 of “Haneishi, Hirasawa, Suzuki,“ Small / Plane Antenna ”, Corona Inc.” The electric field distribution in the first resonance space is as follows. Since the electric field is zero near the longitudinal center of the first radiating element 1, its operation does not change even if it is short-circuited to the ground conductor 5 at that portion.

第２の放射素子２と地導体５に挟まれた間隙部にも同様に、第１の周波数の半波長で共振する第２の共振空間を構成する。この第２の共振空間には給電線が配置されていないが、第１の共振空間から波長λ１に比べて十分小さい距離にあるため、第１の共振空間との電磁結合により給電される。第１の共振空間と第２の共振空間が地導体５の幅方向に対して対称に配置されるため、これらの共振空間から放射された放射パターンは、地導体５の長手方向に垂直な面内においてほぼ無指向性となる。 Similarly, a gap between the second radiating element 2 and the ground conductor 5 forms a second resonance space that resonates at a half wavelength of the first frequency. This is the second resonance space not disposed feed line, but because of the sufficiently small distance than the first resonance space wavelength lambda 1, is powered by the electromagnetic coupling between the first resonant space. Since the first resonance space and the second resonance space are arranged symmetrically with respect to the width direction of the ground conductor 5, the radiation pattern radiated from these resonance spaces is a plane perpendicular to the longitudinal direction of the ground conductor 5. It becomes almost omnidirectional.

第３の放射素子３は、第１の放射素子１に対してλ２／１００程度に近接して配置されており、第３の放射素子３と第１の放射素子１に挟まれた間隙部に第２の周波数の半波長で共振する第３の共振空間を構成する。第２の給電線７は、第３の放射素子３の長手方向の中央付近からλ２／１０程度離れた位置に配置されているため、第２の周波数において図２（ｂ）のような電流分布、および電界分布を生じる。 The third radiating element 3 of the first radiating element is arranged in proximity to approximately lambda 2/100 with respect to 1, the third radiation element 3 and the gap sandwiched between the first radiating element 1 A third resonance space that resonates at a half wavelength of the second frequency is formed. The second feed line 7, because it is located in the third longitudinal position spaced degree lambda 2/10 from near the center of the radiating element 3, a current as shown in FIG. 2 (b) in the second frequency Distribution, and electric field distribution.

第４の放射素子４と第２の放射素子２に挟まれた間隙部にも同様に、第２の周波数の半波長で共振する第４の共振空間を構成する。この第４の共振空間には給電線が配置されていないが、第３の共振空間から波長λ２に比べて十分小さい距離にあるため、第３の共振空間との電磁結合により給電される。第３の共振空間と第４の共振空間が地導体５の幅方向に対して対称に配置されるため、これらの共振空間から放射された放射パターンは、地導体５の長手方向に垂直な面内においてほぼ無指向性となる。 Similarly, a gap portion sandwiched between the fourth radiating element 4 and the second radiating element 2 forms a fourth resonance space that resonates at a half wavelength of the second frequency. Although no power supply line is arranged in the fourth resonance space, the power is fed by electromagnetic coupling with the third resonance space because the power supply line is sufficiently smaller than the wavelength λ 2 from the third resonance space. Since the third resonance space and the fourth resonance space are arranged symmetrically with respect to the width direction of the ground conductor 5, the radiation pattern radiated from these resonance spaces is a plane perpendicular to the longitudinal direction of the ground conductor 5. It becomes almost omnidirectional.

図１のアンテナ装置を基地局アンテナに適用する場合、第１〜第４の放射素子１〜４、および第１の給電線６、第２の給電線７を地導体５の長手方向に並べてコリニアアレーアンテナを構成する。その際には、地導体５に、各放射素子へ給電される、図示されていない給電線が配置される。第１の給電線６は、地導体５上に設けられているため、前記給電線に対して直接接続することが可能である。一方、第２の給電線７は、地導体５に直接接続されていないため、前記給電線に直接接続することができない。しかし、第１の放射素子１は、長手方向の中央付近で地導体５に導通されているため、この部分を介して前記給電線と第２の給電線７を接続することが可能となる。   When the antenna apparatus of FIG. 1 is applied to a base station antenna, the first to fourth radiating elements 1 to 4, the first feed line 6, and the second feed line 7 are arranged in the longitudinal direction of the ground conductor 5 to be collinear. Configure an array antenna. In this case, a power supply line (not shown) that supplies power to each radiating element is disposed on the ground conductor 5. Since the first power supply line 6 is provided on the ground conductor 5, it can be directly connected to the power supply line. On the other hand, since the second feeder 7 is not directly connected to the ground conductor 5, it cannot be directly connected to the feeder. However, since the first radiating element 1 is electrically connected to the ground conductor 5 in the vicinity of the center in the longitudinal direction, the feeding line and the second feeding line 7 can be connected through this portion.

以上の構成のアンテナ装置では、第１の周波数で動作する第１の共振空間、及び第２の共振空間と、第２の周波数で動作する第３の共振空間、及び第４の共振空間を、地導体５の長手方向に対して同一の場所に構成することが可能であり、アンテナの全長を短くすることが可能となる。また、アンテナ構成の対称性から、地導体５の長手方向に垂直な面内においてほぼ無指向性となる。   In the antenna device having the above configuration, the first resonance space and the second resonance space that operate at the first frequency, the third resonance space that operates at the second frequency, and the fourth resonance space, It is possible to configure in the same place with respect to the longitudinal direction of the ground conductor 5, and it is possible to shorten the overall length of the antenna. Further, due to the symmetry of the antenna configuration, the antenna is almost non-directional in a plane perpendicular to the longitudinal direction of the ground conductor 5.

なお、上記では地導体５や各放射素子１〜４を細長い平面状（平板状）として説明したが、これらのものを線状導体、棒状導体、筒状導体等に置き換えても同様な動作をする。また、地導体５や各放射素子１〜４、各給電線６、７を基板上の導体膜により構成することも可能である。   In the above description, the ground conductor 5 and each of the radiating elements 1 to 4 have been described as long and thin planar shapes (flat plate shapes). To do. Further, the ground conductor 5, the radiating elements 1 to 4, and the feed lines 6 and 7 can be formed of a conductor film on the substrate.

実施の形態２．
この発明の実施の形態２に係るアンテナ装置について図３を参照しながら説明する。図３は、この発明の実施の形態２に係るアンテナ装置の構成を示す図である。 Embodiment 2. FIG.
An antenna device according to Embodiment 2 of the present invention will be described with reference to FIG. FIG. 3 is a diagram showing a configuration of an antenna apparatus according to Embodiment 2 of the present invention.

図３において、この発明の実施の形態２に係るアンテナ装置は、第１の放射素子１と、第２の放射素子２と、第３の放射素子３と、第４の放射素子４と、地導体５と、第１の給電線６と、第２の給電線７と、第３の給電線８と、第４の給電線９とが設けられている。   3, the antenna device according to Embodiment 2 of the present invention includes a first radiating element 1, a second radiating element 2, a third radiating element 3, a fourth radiating element 4, and a ground. A conductor 5, a first feed line 6, a second feed line 7, a third feed line 8, and a fourth feed line 9 are provided.

この実施の形態２に係るアンテナ装置の基本的な構成は、上記の実施の形態１と同様であるため、ここでは実施の形態１と異なる部分についてのみ説明する。   Since the basic configuration of the antenna device according to the second embodiment is the same as that of the first embodiment, only the parts different from the first embodiment will be described here.

この実施の形態２では、実施の形態１の構成に、第３の給電線８と第４の給電線９が追加されている。第２の共振空間は、第３の給電線８により給電され、第４の共振空間は、第４の給電線９により給電される。そのため、共振空間１と２、および共振空間３と４が等しく給電されるため、アンテナの放射パターンの対称性が、実施の形態１にくらべて改善されるという利点が生じる。   In the second embodiment, a third feeder 8 and a fourth feeder 9 are added to the configuration of the first embodiment. The second resonance space is fed by the third feed line 8, and the fourth resonance space is fed by the fourth feed line 9. Therefore, since resonance spaces 1 and 2 and resonance spaces 3 and 4 are fed equally, there is an advantage that the symmetry of the radiation pattern of the antenna is improved as compared with the first embodiment.

実施の形態３．
この発明の実施の形態３に係るアンテナ装置について図４及び図５を参照しながら説明する。図４は、この発明の実施の形態３に係るアンテナ装置の構成を示す斜視図である。また、図５は、図４に示す地導体の長手方向に対する中央付近における断面図である。 Embodiment 3 FIG.
An antenna device according to Embodiment 3 of the present invention will be described with reference to FIGS. FIG. 4 is a perspective view showing a configuration of an antenna apparatus according to Embodiment 3 of the present invention. 5 is a cross-sectional view in the vicinity of the center with respect to the longitudinal direction of the ground conductor shown in FIG.

図４及び図５において、この発明の実施の形態３に係るアンテナ装置は、第１の放射素子１と、第２の放射素子２と、第３の放射素子３と、第４の放射素子４と、地導体５と、第１の給電線６と、第２の給電線７と、第１の筒状導体１０と、第２の筒状導体１１とが設けられている。   4 and 5, the antenna device according to Embodiment 3 of the present invention includes a first radiating element 1, a second radiating element 2, a third radiating element 3, and a fourth radiating element 4. A ground conductor 5, a first feed line 6, a second feed line 7, a first tubular conductor 10, and a second tubular conductor 11 are provided.

この実施の形態３に係るアンテナ装置の基本的な構成は、上記の実施の形態１と同様であるため、ここでは実施の形態１と異なる部分についてのみ説明する。   Since the basic configuration of the antenna device according to the third embodiment is the same as that of the first embodiment, only the parts different from the first embodiment will be described here.

この実施の形態３では、実施の形態１の構成に、四角筒導体や円筒導体などの第１の筒状導体１０と第２の筒状導体１１が追加されている。この場合、地導体５と第１の筒状導体１０の間隙部に第５の共振空間が形成され、第１の共振空間および第２の共振空間は第５の共振空間に統合される。   In the third embodiment, a first cylindrical conductor 10 and a second cylindrical conductor 11 such as a rectangular tube conductor and a cylindrical conductor are added to the configuration of the first embodiment. In this case, a fifth resonance space is formed in the gap between the ground conductor 5 and the first cylindrical conductor 10, and the first resonance space and the second resonance space are integrated into the fifth resonance space.

同様に、第１の筒状導体１０と第２の筒状導体１１の間隙部に第６の共振空間が形成され、第３の共振空間および第４の共振空間は第６の共振空間に統合される。この場合、第５および第６の共振空間は、地導体５の周囲全体にわたって構成されるため、上記の実施の形態１に比べて、地導体５の長手方向に垂直な面内においてより精度の高い無指向性が得られるという利点が生じる。   Similarly, a sixth resonance space is formed in the gap between the first cylindrical conductor 10 and the second cylindrical conductor 11, and the third resonance space and the fourth resonance space are integrated into the sixth resonance space. Is done. In this case, since the fifth and sixth resonance spaces are configured over the entire periphery of the ground conductor 5, more accurate in a plane perpendicular to the longitudinal direction of the ground conductor 5 than in the first embodiment. The advantage that high omnidirectionality is obtained arises.

なお、ここでは、第１の放射素子１および第２の放射素子２に第１の筒状導体１０を追加した形状について説明したが、第１の放射素子１と第２の放射素子２を第１の筒状導体１０で置き換えたものでも同様に動作する。同様に、第３の放射素子３と第４の放射素子４を第２の筒状導体１１で置き換えても良い。   In addition, although the shape which added the 1st cylindrical conductor 10 to the 1st radiation element 1 and the 2nd radiation element 2 was demonstrated here, the 1st radiation element 1 and the 2nd radiation element 2 are made into 1st. Even if it replaces with the one cylindrical conductor 10, it operate | moves similarly. Similarly, the third radiating element 3 and the fourth radiating element 4 may be replaced with the second cylindrical conductor 11.

実施の形態４．
この発明の実施の形態４に係るアンテナ装置について図６を参照しながら説明する。図６は、この発明の実施の形態４に係るアンテナ装置の構成を示す図である。 Embodiment 4 FIG.
An antenna device according to Embodiment 4 of the present invention will be described with reference to FIG. FIG. 6 is a diagram showing a configuration of an antenna apparatus according to Embodiment 4 of the present invention.

図６において、この発明の実施の形態４に係るアンテナ装置は、第１の放射素子１と、第２の放射素子２と、第３の放射素子３と、第４の放射素子４と、地導体５と、第１の給電線６と、第２の給電線７とが設けられている。また、地導体５の短絡部と第１の放射素子１に切り欠き部１２が設けられている。   In FIG. 6, the antenna device according to Embodiment 4 of the present invention includes a first radiating element 1, a second radiating element 2, a third radiating element 3, a fourth radiating element 4, and a ground. A conductor 5, a first power supply line 6, and a second power supply line 7 are provided. Further, a notch 12 is provided in the short-circuit portion of the ground conductor 5 and the first radiating element 1.

この実施の形態４に係るアンテナ装置の基本的な構成は、上記の実施の形態１と同様であるため、ここでは実施の形態１と異なる部分についてのみ説明する。   Since the basic configuration of the antenna device according to the fourth embodiment is the same as that of the first embodiment, only the parts different from the first embodiment will be described here.

この実施の形態４では、実施の形態１の構成に加えて、第１の放射素子１に切り欠き部１２が設けられており、第２の給電線７は切り欠き部１２をまたぐように配置される。   In the fourth embodiment, in addition to the configuration of the first embodiment, the first radiating element 1 is provided with a notch 12, and the second feeder 7 is disposed so as to straddle the notch 12. Is done.

切り欠き部１２には第２の給電線７により磁流が誘起され、この磁流との電磁結合により第３の共振空間が給電される。   A magnetic current is induced in the notch portion 12 by the second power supply line 7, and the third resonance space is supplied with power by electromagnetic coupling with the magnetic current.

この実施の形態４では、第３の放射素子３と第１の放射素子１の間を第２の給電線７により物理的に接続する必要がないため、第３の放射素子３と第４の放射素子４を別体で工作可能であり、工作性が向上するという利点が生じる。   In the fourth embodiment, since there is no need to physically connect the third radiating element 3 and the first radiating element 1 by the second feeder 7, the third radiating element 3 and the fourth radiating element 3 The radiation element 4 can be machined separately, resulting in an advantage of improved workability.

実施の形態５．
この発明の実施の形態５に係るアンテナ装置について図７及び図８を参照しながら説明する。図７は、この発明の実施の形態５に係るアンテナ装置の構成を示す斜視図である。また、図８は、図７の筒状導体の長手方向に対する断面図である。 Embodiment 5 FIG.
An antenna apparatus according to Embodiment 5 of the present invention will be described with reference to FIGS. FIG. 7 is a perspective view showing a configuration of an antenna apparatus according to Embodiment 5 of the present invention. FIG. 8 is a cross-sectional view with respect to the longitudinal direction of the cylindrical conductor of FIG.

図７及び図８において、この発明の実施の形態５に係るアンテナ装置は、第１の放射素子１と、第２の放射素子２と、第３の放射素子３と、第４の放射素子４と、地導体５と、第１の給電線６と、第２の給電線７と、第１の筒状導体１０と、第２の筒状導体１１とが設けられている。また、地導体５の短絡部と第１の放射素子１に切り欠き部１２が設けられている。さらに、第１の筒状導体１０にスロット１３が設けられている。   7 and 8, the antenna device according to Embodiment 5 of the present invention includes a first radiating element 1, a second radiating element 2, a third radiating element 3, and a fourth radiating element 4. A ground conductor 5, a first feed line 6, a second feed line 7, a first tubular conductor 10, and a second tubular conductor 11 are provided. Further, a notch 12 is provided in the short-circuit portion of the ground conductor 5 and the first radiating element 1. Further, the first cylindrical conductor 10 is provided with a slot 13.

図８において、（ａ）は地導体５を含む平面の断面図、（ｂ）はスロット１３を含む面の断面図である。   8A is a sectional view of a plane including the ground conductor 5, and FIG. 8B is a sectional view of a plane including the slot 13.

この実施の形態５に係るアンテナ装置の基本的な構成は、上記の実施の形態３と同様であるため、ここでは実施の形態３と異なる部分についてのみ説明する。   Since the basic configuration of the antenna device according to the fifth embodiment is the same as that of the third embodiment, only the parts different from the third embodiment will be described here.

この実施の形態５では、実施の形態３の構成に加えて、第１の放射素子１に切り欠き部１２が設けられており、第２の給電線７は切り欠き１２をまたぐように配置される。また、第１の筒状導体１０には長手方向の中央付近にスロット１３が設けられており、スロット１３に切り欠き部１２が接続される。   In the fifth embodiment, in addition to the configuration of the third embodiment, the first radiating element 1 is provided with a notch 12, and the second feeder 7 is disposed so as to straddle the notch 12. The The first cylindrical conductor 10 is provided with a slot 13 near the center in the longitudinal direction, and the notch 12 is connected to the slot 13.

切り欠き部１２には第２の給電線７により磁流が誘起される。スロット１３には切り欠き部１２が接続されているため、切り欠き部１２に誘起された磁流によりスロット１３上にも磁流が誘起される。スロット１３上の磁流との電磁結合により第６の共振空間が給電される。   A magnetic current is induced in the notch 12 by the second feeder 7. Since the notch 12 is connected to the slot 13, a magnetic current is also induced on the slot 13 by the magnetic current induced in the notch 12. The sixth resonance space is fed by electromagnetic coupling with the magnetic current on the slot 13.

この実施の形態５では、第３の放射素子３と第１の放射素子１の間を第２の給電線７により物理的に接続する必要がないため、第３の放射素子３、第４の放射素子４および第２の筒状導体１１を別体で工作可能であり、工作性が向上するという利点が生じる。また、第５および第６の共振空間は、地導体５の周囲全体にわたって構成されるため、実施の形態４に比べて、地導体５の長手方向に垂直な面内においてより精度の高い無指向性が得られるという利点が生じる。   In the fifth embodiment, since there is no need to physically connect the third radiating element 3 and the first radiating element 1 by the second feeder 7, The radiation element 4 and the second cylindrical conductor 11 can be machined separately, resulting in an advantage of improved workability. In addition, since the fifth and sixth resonance spaces are configured over the entire periphery of the ground conductor 5, the omnidirectional is more accurate in a plane perpendicular to the longitudinal direction of the ground conductor 5 than in the fourth embodiment. The advantage is obtained that

実施の形態６．
この発明の実施の形態６に係るアンテナ装置について図９を参照しながら説明する。図９は、この発明の実施の形態６に係るアンテナ装置の構成を示す図である。 Embodiment 6 FIG.
An antenna apparatus according to Embodiment 6 of the present invention will be described with reference to FIG. FIG. 9 is a diagram showing a configuration of an antenna apparatus according to Embodiment 6 of the present invention.

図９において、この発明の実施の形態６に係るアンテナ装置は、第１の放射素子１と、第２の放射素子２と、第３の放射素子３と、第４の放射素子４と、地導体５と、第１の給電線６と、第２の給電線７と、第５の給電線１４と、第６の給電線１５とが設けられている。   In FIG. 9, the antenna device according to Embodiment 6 of the present invention includes a first radiating element 1, a second radiating element 2, a third radiating element 3, a fourth radiating element 4, and a ground. A conductor 5, a first feed line 6, a second feed line 7, a fifth feed line 14, and a sixth feed line 15 are provided.

この実施の形態６に係るアンテナ装置の基本的な構成は、上記の実施の形態１と同様であるため、ここでは実施の形態１と異なる部分についてのみ説明する。   Since the basic configuration of the antenna device according to the sixth embodiment is the same as that of the first embodiment, only the parts different from the first embodiment will be described here.

この実施の形態６では、実施の形態１の構成に加えて、第５の給電線１４と、第６の給電線１５が設けられている。   In the sixth embodiment, in addition to the configuration of the first embodiment, a fifth feeder 14 and a sixth feeder 15 are provided.

第５の給電線１４は、地導体５から所定の距離を離して、地導体５に概略平行に配置された導線または銅板から構成され、地導体５を利用したマイクロストリップ線路として動作する。第１の給電線６、第２の給電線７、及び第６の給電線１５も同様である。   The fifth power supply line 14 is composed of a conductive wire or a copper plate that is arranged at a predetermined distance from the ground conductor 5 and substantially parallel to the ground conductor 5, and operates as a microstrip line using the ground conductor 5. The same applies to the first feeder 6, the second feeder 7, and the sixth feeder 15.

第５の給電線１４と第６の給電線１５は、地導体５の両面に配置されており、地導体５によって線路間の結合を防止している。   The fifth feeder 14 and the sixth feeder 15 are disposed on both surfaces of the ground conductor 5, and the ground conductor 5 prevents coupling between the lines.

第５の給電線１４から第１の給電線６が分岐されており、第１の給電線６は所定の位置で第１の放射素子１に接続される。また、第６の給電線１５から第２の給電線７が分岐されており、第２の給電線７は所定の位置で第３の放射素子３に接続される。この際、第２の給電線７は、第１の共振空間を跨ぐように配置する必要がある。第１の放射素子１と地導体５の短絡部に第２の給電線７を這わせることで、第１の共振空間と不要な結合することなく配線が可能となる。   The first feeder 6 is branched from the fifth feeder 14, and the first feeder 6 is connected to the first radiating element 1 at a predetermined position. Further, the second feeder line 7 is branched from the sixth feeder line 15, and the second feeder line 7 is connected to the third radiating element 3 at a predetermined position. At this time, the second feeder 7 needs to be arranged so as to straddle the first resonance space. By arranging the second feeder 7 in the short-circuit portion between the first radiating element 1 and the ground conductor 5, wiring is possible without unnecessary coupling with the first resonance space.

この実施の形態６は、上記の実施の形態１を実際に作成する際の形状を示している。ここでは、導体のみを用いた構成例を示しているが、これらの導体を誘電体基板の上に構成することも可能である。たとえば、導体層を３層含む誘電体基板において、表面側の導体層に第５の給電線１４および第１の給電線６を配置し、裏面側の導体層に、第６の給電線１５および第２の給電線７を配置し、中間の導体層に第１の放射素子１、第２の放射素子２、第３の放射素子３、第４の放射素子４および地導体５を配置し、各給電線と各放射素子の接続にスルーホールを用いることで容易に実現可能である。なお、この実施の形態６は、上記の各実施の形態に適用できる。   The sixth embodiment shows a shape when the first embodiment is actually created. Here, a configuration example using only conductors is shown, but it is also possible to configure these conductors on a dielectric substrate. For example, in a dielectric substrate including three conductor layers, the fifth feeder 14 and the first feeder 6 are arranged in the conductor layer on the front surface side, and the sixth feeder 15 and the conductor layer on the back surface side are arranged. The second feeder 7 is arranged, the first radiating element 1, the second radiating element 2, the third radiating element 3, the fourth radiating element 4 and the ground conductor 5 are arranged in the middle conductor layer, This can be easily realized by using a through hole to connect each feeder line and each radiation element. The sixth embodiment can be applied to each of the above embodiments.

実施の形態７．
この発明の実施の形態７に係るアンテナ装置について図１０を参照しながら説明する。図１０は、この発明の実施の形態７に係るアンテナ装置の構成を示す図である。 Embodiment 7 FIG.
An antenna apparatus according to Embodiment 7 of the present invention will be described with reference to FIG. FIG. 10 is a diagram showing a configuration of an antenna apparatus according to Embodiment 7 of the present invention.

図１０において、この発明の実施の形態７に係るアンテナ装置は、第１の放射素子１と、第２の放射素子２と、第３の放射素子３と、第４の放射素子４と、地導体５と、第１の給電線６と、第２の給電線７と、第５の給電線１４と、第６の給電線１５と、位相遅延回路１６とが設けられている。   In FIG. 10, an antenna device according to Embodiment 7 of the present invention includes a first radiating element 1, a second radiating element 2, a third radiating element 3, a fourth radiating element 4, and a ground. A conductor 5, a first feed line 6, a second feed line 7, a fifth feed line 14, a sixth feed line 15, and a phase delay circuit 16 are provided.

この実施の形態７に係るアンテナ装置の基本的な構成は、上記の実施の形態６と同様であるため、ここでは実施の形態６と異なる部分についてのみ説明する。   Since the basic configuration of the antenna device according to the seventh embodiment is the same as that of the sixth embodiment, only the parts different from the sixth embodiment will be described here.

この実施の形態７では、第１の放射素子１、第２の放射素子２、第３の放射素子３、第４の放射素子４、第１の給電線６、第２の給電線７を、地導体５の長手方向に対して複数並べたコリニアアレーアンテナを構成している。   In the seventh embodiment, the first radiating element 1, the second radiating element 2, the third radiating element 3, the fourth radiating element 4, the first feeding line 6, and the second feeding line 7 are A plurality of collinear array antennas are arranged in the longitudinal direction of the ground conductor 5.

複数の第１の給電線６は、第５の給電線１４に対して縦続的に接続される。また、複数の第２の給電線７は、第６の給電線１５に対して縦続的に接続される。第５の給電線１４は、コリニアアレーアンテナの端で第１の周波数により給電される。また、第６の給電線１５は、コリニアアレーアンテナの端で第２の周波数により給電される。   The plurality of first power supply lines 6 are connected to the fifth power supply line 14 in cascade. The plurality of second power supply lines 7 are connected to the sixth power supply line 15 in cascade. The fifth feeder 14 is fed at the first frequency at the end of the collinear array antenna. The sixth feeder 15 is fed by the second frequency at the end of the collinear array antenna.

ここで、第１の周波数が第２の周波数より低くなるように設定する。第１の共振空間および第２の共振空間は第１の周波数で動作し、第３の共振空間および第４の共振空間は第２の周波数で動作する。   Here, the first frequency is set to be lower than the second frequency. The first resonance space and the second resonance space operate at the first frequency, and the third resonance space and the fourth resonance space operate at the second frequency.

第１の周波数において、隣り合う素子間の給電位相差は第５の給電線１４上に於ける、第１の給電線６の分岐点間の電気長によって決定される。同様に、第２の周波数において、隣り合う素子間の給電位相差は第６の給電線１５上に於ける、第２の給電線７の分岐点間の電気長によって決定される。分岐点間の物理的距離は、第５の給電線１４と第６の給電線１５において同一であるため、第５の給電線１４と第６の給電線１５を同一構造で構成した場合、第１の周波数における給電位相差と、第２の周波数に於ける給電位相差が異なる。その結果、第１の周波数と第２の周波数で異なる方向にビームが向くという不具合が生じる。これを解決するため、第５の給電線１４に位相遅延回路１６を設け、第１の周波数に於ける給電位相差と第２の周波数に於ける給電位相差を同一にし、２つの周波数に於けるビームの方向をそろえることが可能となる。   At the first frequency, the feeding phase difference between adjacent elements is determined by the electrical length between the branch points of the first feeding line 6 on the fifth feeding line 14. Similarly, at the second frequency, the feeding phase difference between adjacent elements is determined by the electrical length between the branch points of the second feeding line 7 on the sixth feeding line 15. Since the physical distance between the branch points is the same in the fifth feeder line 14 and the sixth feeder line 15, when the fifth feeder line 14 and the sixth feeder line 15 are configured in the same structure, The feeding phase difference at the first frequency is different from the feeding phase difference at the second frequency. As a result, there arises a problem that the beam is directed in different directions at the first frequency and the second frequency. In order to solve this, a phase delay circuit 16 is provided in the fifth feed line 14 so that the feed phase difference at the first frequency is the same as the feed phase difference at the second frequency. It is possible to align the beam direction.

この発明の実施の形態１に係るアンテナ装置の構成を示す図である。It is a figure which shows the structure of the antenna apparatus which concerns on Embodiment 1 of this invention. 図１に示した放射素子上の電流分布及びその近傍の電界分布を表す図である。It is a figure showing the electric current distribution on the radiation | emission element shown in FIG. 1, and the electric field distribution of the vicinity. この発明の実施の形態２に係るアンテナ装置の構成を示す図である。It is a figure which shows the structure of the antenna apparatus which concerns on Embodiment 2 of this invention. この発明の実施の形態３に係るアンテナ装置の構成を示す斜視図である。It is a perspective view which shows the structure of the antenna apparatus which concerns on Embodiment 3 of this invention. 図４に示す地導体の長手方向に対する中央付近における断面図である。It is sectional drawing in the center vicinity with respect to the longitudinal direction of the ground conductor shown in FIG. この発明の実施の形態４に係るアンテナ装置の構成を示す図である。It is a figure which shows the structure of the antenna device which concerns on Embodiment 4 of this invention. この発明の実施の形態５に係るアンテナ装置の構成を示す斜視図である。It is a perspective view which shows the structure of the antenna apparatus which concerns on Embodiment 5 of this invention. 図７の筒状導体の長手方向に対する断面図である。It is sectional drawing with respect to the longitudinal direction of the cylindrical conductor of FIG. この発明の実施の形態６に係るアンテナ装置の構成を示す図である。It is a figure which shows the structure of the antenna apparatus which concerns on Embodiment 6 of this invention. この発明の実施の形態７に係るアンテナ装置の構成を示す図である。It is a figure which shows the structure of the antenna device which concerns on Embodiment 7 of this invention. 従来のアンテナ装置の構成を示す図である。It is a figure which shows the structure of the conventional antenna apparatus.

符号の説明Explanation of symbols

１ 第１の放射素子、２ 第２の放射素子、３ 第３の放射素子、４ 第４の放射素子、５ 地導体、６ 第１の給電線、７ 第２の給電線、８ 第３の給電線、９ 第４の給電線、１０ 第１の筒状導体、１１ 第２の筒状導体、１２ 切り欠き部、１３ スロット、１４ 第５の給電線、１５ 第６の給電線、１６ 位相遅延回路。   DESCRIPTION OF SYMBOLS 1 1st radiation element, 2nd radiation element, 3rd radiation element, 4th radiation element, 5 ground conductor, 6 1st feed line, 7 2nd feed line, 8 3rd Feed line, 9 4th feed line, 10 1st cylindrical conductor, 11 2nd cylindrical conductor, 12 notch, 13 slot, 14 5th feed line, 15 6th feed line, 16 phase Delay circuit.

Claims (11)

細長い地導体と、
前記地導体と同一平面内に平行に配置され、長手方向の中央近傍で前記地導体に短絡された細長い第１の放射素子と、
前記地導体に対して前記第１の放射素子と反対側の線対称の位置に、前記地導体と同一平面内に平行に配置され、長手方向の中央近傍で前記地導体に短絡された細長い第２の放射素子と、
前記第１の放射素子に対して前記地導体と反対側に、前記第１の放射素子と同一平面内に平行に配置された細長い第３の放射素子と、
前記地導体に対して前記第３の放射素子と反対側の線対称の位置に、前記地導体と同一平面内に平行に配置された細長い第４の放射素子と、
前記地導体及び前記第１の放射素子の間に接続された第１の給電線と、
前記第１の放射素子及び前記第３の放射素子の間に接続された第２の給電線と
を備え、
前記第１の放射素子及び前記第２の放射素子に接続され、かつ前記地導体の長手方向に垂直な周囲に配置された第１の筒状導体と、
前記第３の放射素子及び前記第４の放射素子に接続され、かつ前記第１の筒状導体の長手方向に垂直な周囲に配置された第２の筒状導体とをさらに備えた
ことを特徴とするアンテナ装置。 An elongated ground conductor,
An elongated first radiating element disposed in parallel with the ground conductor in the same plane and short-circuited to the ground conductor near the center in the longitudinal direction;
The elongated second conductor is disposed in parallel with the ground conductor in the same plane as the ground conductor at a position symmetrical to the ground conductor on the opposite side of the first radiating element, and is short-circuited to the ground conductor in the vicinity of the center in the longitudinal direction. Two radiating elements;
An elongated third radiating element disposed in parallel to the first radiating element on the opposite side of the ground conductor and in the same plane as the first radiating element;
An elongated fourth radiating element arranged in parallel with the ground conductor in the same plane at a line-symmetrical position opposite to the third radiating element with respect to the ground conductor;
A first feeder connected between the ground conductor and the first radiating element;
A second feed line connected between the first radiating element and the third radiating element ,
A first cylindrical conductor connected to the first radiating element and the second radiating element, and disposed around a periphery perpendicular to the longitudinal direction of the ground conductor;
And a second cylindrical conductor connected to the third radiating element and the fourth radiating element, and disposed around the first cylindrical conductor in a longitudinal direction. An antenna device. 細長い地導体と、
前記地導体と同一平面内に平行に配置され、長手方向の中央近傍で前記地導体に短絡された細長い第１の放射素子と、
前記地導体に対して前記第１の放射素子と反対側の線対称の位置に、前記地導体と同一平面内に平行に配置され、長手方向の中央近傍で前記地導体に短絡された細長い第２の放射素子と、
前記第１の放射素子に対して前記地導体と反対側に、前記第１の放射素子と同一平面内に平行に配置された細長い第３の放射素子と、
前記地導体に対して前記第３の放射素子と反対側の線対称の位置に、前記地導体と同一平面内に平行に配置された細長い第４の放射素子と、
前記地導体及び前記第１の放射素子の間に接続された第１の給電線と、
前記第１の放射素子及び前記第３の放射素子の間に接続された第２の給電線と
を備え、
前記第１の放射素子及び前記第２の放射素子の代わりに、前記地導体の長手方向に垂直な周囲に配置された第１の筒状導体を備えるとともに、
前記第３の放射素子及び前記第４の放射素子の代わりに、前記第１の筒状導体の長手方向に垂直な周囲に配置された第２の筒状導体を備えた
ことを特徴とするアンテナ装置。 An elongated ground conductor,
An elongated first radiating element disposed in parallel with the ground conductor in the same plane and short-circuited to the ground conductor near the center in the longitudinal direction;
The elongated second conductor is disposed in parallel with the ground conductor in the same plane as the ground conductor at a position symmetrical to the ground conductor on the opposite side of the first radiating element, and is short-circuited to the ground conductor in the vicinity of the center in the longitudinal direction. Two radiating elements;
An elongated third radiating element disposed in parallel to the first radiating element on the opposite side of the ground conductor and in the same plane as the first radiating element;
An elongated fourth radiating element arranged in parallel with the ground conductor in the same plane at a line-symmetrical position opposite to the third radiating element with respect to the ground conductor;
A first feeder connected between the ground conductor and the first radiating element;
A second feed line connected between the first radiating element and the third radiating element ,
In place of the first radiating element and the second radiating element, the first radiating element is provided with a first cylindrical conductor disposed around the vertical direction of the ground conductor, and
An antenna comprising a second cylindrical conductor disposed around the vertical direction of the first cylindrical conductor in place of the third and fourth radiating elements. apparatus. 細長い地導体と、
前記地導体と同一平面内に平行に配置され、長手方向の中央近傍で前記地導体に短絡された細長い第１の放射素子と、
前記地導体に対して前記第１の放射素子と反対側の線対称の位置に、前記地導体と同一平面内に平行に配置され、長手方向の中央近傍で前記地導体に短絡された細長い第２の放射素子と、
前記第１の放射素子に対して前記地導体と反対側に、前記第１の放射素子と同一平面内に平行に配置された細長い第３の放射素子と、
前記地導体に対して前記第３の放射素子と反対側の線対称の位置に、前記地導体と同一平面内に平行に配置された細長い第４の放射素子と、
前記地導体及び前記第１の放射素子の間に接続された第１の給電線と、
前記第１の放射素子及び前記第３の放射素子の間に接続された第２の給電線と
を備え、
前記第１の放射素子の長手方向の中央近傍に切り欠き部を設け、
前記第２の給電線を、前記第１の放射素子及び前記第３の放射素子の間に接続する代わりに、前記切り欠き部に接続した
ことを特徴とするアンテナ装置。 An elongated ground conductor,
An elongated first radiating element disposed in parallel with the ground conductor in the same plane and short-circuited to the ground conductor near the center in the longitudinal direction;
The elongated second conductor is disposed in parallel with the ground conductor in the same plane as the ground conductor at a position symmetrical to the ground conductor on the opposite side of the first radiating element, and is short-circuited to the ground conductor in the vicinity of the center in the longitudinal direction. Two radiating elements;
An elongated third radiating element disposed in parallel to the first radiating element on the opposite side of the ground conductor and in the same plane as the first radiating element;
An elongated fourth radiating element arranged in parallel with the ground conductor in the same plane at a line-symmetrical position opposite to the third radiating element with respect to the ground conductor;
A first feeder connected between the ground conductor and the first radiating element;
A second feed line connected between the first radiating element and the third radiating element ,
A notch is provided near the longitudinal center of the first radiating element;
The antenna device, wherein the second feeder is connected to the notch instead of being connected between the first radiating element and the third radiating element . 前記第１の放射素子の長手方向の中央近傍に切り欠き部を設け、
前記第２の給電線を、前記第１の放射素子及び前記第３の放射素子の間に接続する代わりに、前記切り欠き部に接続し、
前記第１の筒状導体において前記切り欠き部に対抗する位置にスリットを設けた
ことを特徴とする請求項１記載のアンテナ装置。 A notch is provided near the longitudinal center of the first radiating element;
Instead of connecting the second feeder line between the first radiating element and the third radiating element, it is connected to the notch,
The antenna device according to claim 1, characterized in that a slit at a position to compete with the notch in the first tubular conductor. 前記地導体から所定の距離を離して、前記地導体の長手方向に平行に配置された第５の給電線と、
前記地導体に対して前記第５の給電線とは反対側に、前記地導体から所定の距離を離して、前記地導体の長手方向に平行に配置された第６の給電線とをさらに備え、
前記第１の給電線と前記第５の給電線を接続し、
前記第２の給電線と前記第６の給電線を接続した
ことを特徴とする請求項１から請求項４までのいずれかに記載のアンテナ装置。 A fifth feed line arranged at a predetermined distance from the ground conductor and parallel to the longitudinal direction of the ground conductor;
A sixth feed line disposed on a side opposite to the fifth feed line with respect to the ground conductor and spaced apart from the ground conductor by a predetermined distance and parallel to the longitudinal direction of the ground conductor; ,
Connecting the first feeder and the fifth feeder;
The antenna device according to any one of 請 Motomeko 1 characterized in that connects the sixth feed line and the second feeder line to claim 4. 前記第５の給電線を、前記地導体を利用したマイクロストリップ線路で構成し、
前記第６の給電線を、前記地導体に対して前記第５の給電線と反対側の面に、前記地導体を利用したマイクロストリップ線路で構成し、
前記第２の給電線と前記第６の給電線を、前記地導体と前記第１の放射素子を短絡した部分を通して接続した
ことを特徴とする請求項５記載のアンテナ装置。 The fifth feeder line is constituted by a microstrip line using the ground conductor,
The sixth feeder line is constituted by a microstrip line using the ground conductor on the surface opposite to the fifth feeder line with respect to the ground conductor,
The antenna apparatus according to claim 5, wherein the second feeding line and the sixth feeding line are connected through a portion where the ground conductor and the first radiating element are short-circuited. 前記第１の放射素子、前記第２の放射素子、前記第３の放射素子、前記第４の放射素子、前記第１の給電線及び前記第２の給電線を前記地導体の長手方向に複数並べ、
前記複数の第１の給電線を前記第５の給電線に対して縦続的に接続し、
前記複数の第２の給電線を前記第６の給電線に対して縦続的に接続し、
前記第５の給電線は第１の周波数において励振し、
前記第６の給電線は第２の周波数において励振し、
前記第１の周波数における前記第５の給電線上の前記第１の給電線の分岐点間の電気長を、前記第２の周波数における前記第６の給電線上の前記第２の給電線の分岐点間の電気長と等しくした
ことを特徴とする請求項６記載のアンテナ装置。 A plurality of the first radiating element, the second radiating element, the third radiating element, the fourth radiating element, the first feeding line, and the second feeding line in the longitudinal direction of the ground conductor. Line up,
Connecting the plurality of first power supply lines in cascade with respect to the fifth power supply line;
Connecting the plurality of second power supply lines in cascade with respect to the sixth power supply line;
The fifth feeder line is excited at a first frequency;
The sixth feeder line is excited at a second frequency;
The electrical length between the branch points of the first feed line on the fifth feed line at the first frequency is the branch length of the second feed line on the sixth feed line at the second frequency. The antenna device according to claim 6 , wherein the electrical length is equal to between the antenna devices. 細長い地導体と、
前記地導体と同一平面内に平行に配置され、長手方向の中央近傍で前記地導体に短絡された細長い第１の放射素子と、
前記地導体に対して前記第１の放射素子と反対側の線対称の位置に、前記地導体と同一平面内に平行に配置され、長手方向の中央近傍で前記地導体に短絡された細長い第２の放射素子と、
前記第１の放射素子に対して前記地導体と反対側に、前記第１の放射素子と同一平面内に平行に配置された細長い第３の放射素子と、
前記地導体に対して前記第３の放射素子と反対側の線対称の位置に、前記地導体と同一平面内に平行に配置された細長い第４の放射素子と、
前記地導体及び前記第１の放射素子の間に接続された第１の給電線と、
前記第１の放射素子及び前記第３の放射素子の間に接続された第２の給電線と
を備え、
前記地導体から所定の距離を離して、前記地導体の長手方向に平行に配置された第５の給電線と、
前記地導体に対して前記第５の給電線とは反対側に、前記地導体から所定の距離を離して、前記地導体の長手方向に平行に配置された第６の給電線とをさらに備え、
前記第１の給電線と前記第５の給電線を接続し、
前記第２の給電線と前記第６の給電線を接続し、
前記第５の給電線を、前記地導体を利用したマイクロストリップ線路で構成し、
前記第６の給電線を、前記地導体に対して前記第５の給電線と反対側の面に、前記地導体を利用したマイクロストリップ線路で構成し、
前記第２の給電線と前記第６の給電線を、前記地導体と前記第１の放射素子を短絡した部分を通して接続した
ことを特徴とするアンテナ装置。 An elongated ground conductor,
An elongated first radiating element disposed in parallel with the ground conductor in the same plane and short-circuited to the ground conductor near the center in the longitudinal direction;
The elongated second conductor is disposed in parallel with the ground conductor in the same plane as the ground conductor at a position symmetrical to the ground conductor on the opposite side of the first radiating element, and is short-circuited to the ground conductor in the vicinity of the center in the longitudinal direction. Two radiating elements;
An elongated third radiating element disposed in parallel to the first radiating element on the opposite side of the ground conductor and in the same plane as the first radiating element;
An elongated fourth radiating element arranged in parallel with the ground conductor in the same plane at a line-symmetrical position opposite to the third radiating element with respect to the ground conductor;
A first feeder connected between the ground conductor and the first radiating element;
A second feed line connected between the first radiating element and the third radiating element ,
A fifth feed line arranged at a predetermined distance from the ground conductor and parallel to the longitudinal direction of the ground conductor;
A sixth feed line disposed on a side opposite to the fifth feed line with respect to the ground conductor and spaced apart from the ground conductor by a predetermined distance and parallel to the longitudinal direction of the ground conductor; ,
Connecting the first feeder and the fifth feeder;
Connecting the second power supply line and the sixth power supply line;
The fifth feeder line is constituted by a microstrip line using the ground conductor,
The sixth feeder line is constituted by a microstrip line using the ground conductor on the surface opposite to the fifth feeder line with respect to the ground conductor,
The antenna apparatus, wherein the second feeding line and the sixth feeding line are connected through a portion where the ground conductor and the first radiating element are short-circuited . 前記第１の放射素子、前記第２の放射素子、前記第３の放射素子、前記第４の放射素子、前記第１の給電線及び前記第２の給電線を前記地導体の長手方向に複数並べ、
前記複数の第１の給電線を前記第５の給電線に対して縦続的に接続し、
前記複数の第２の給電線を前記第６の給電線に対して縦続的に接続し、
前記第５の給電線は第１の周波数において励振し、
前記第６の給電線は第２の周波数において励振し、
前記第１の周波数における前記第５の給電線上の前記第１の給電線の分岐点間の電気長を、前記第２の周波数における前記第６の給電線上の前記第２の給電線の分岐点間の電気長と等しくした
ことを特徴とする請求項８記載のアンテナ装置。 A plurality of the first radiating element, the second radiating element, the third radiating element, the fourth radiating element, the first feeding line, and the second feeding line in the longitudinal direction of the ground conductor. Line up,
Connecting the plurality of first power supply lines in cascade with respect to the fifth power supply line;
Connecting the plurality of second power supply lines in cascade with respect to the sixth power supply line;
The fifth feeder line is excited at a first frequency;
The sixth feeder line is excited at a second frequency;
The electrical length between the branch points of the first feed line on the fifth feed line at the first frequency is the branch length of the second feed line on the sixth feed line at the second frequency. The antenna device according to claim 8 , wherein the antenna length is equal to the electrical length between the antenna devices. 細長い地導体と、
前記地導体と同一平面内に平行に配置され、長手方向の中央近傍で前記地導体に短絡された細長い第１の放射素子と、
前記地導体に対して前記第１の放射素子と反対側の線対称の位置に、前記地導体と同一平面内に平行に配置され、長手方向の中央近傍で前記地導体に短絡された細長い第２の放射素子と、
前記第１の放射素子に対して前記地導体と反対側に、前記第１の放射素子と同一平面内に平行に配置された細長い第３の放射素子と、
前記地導体に対して前記第３の放射素子と反対側の線対称の位置に、前記地導体と同一平面内に平行に配置された細長い第４の放射素子と、
前記地導体及び前記第１の放射素子の間に接続された第１の給電線と、
前記第１の放射素子及び前記第３の放射素子の間に接続された第２の給電線と
を備え、
前記地導体及び前記第２の放射素子の間に接続された第３の給電線と、
前記第２の放射素子及び前記第４の放射素子の間に接続された第４の給電線とをさらに備え、
前記地導体から所定の距離を離して、前記地導体の長手方向に平行に配置された第５の給電線と、
前記地導体に対して前記第５の給電線とは反対側に、前記地導体から所定の距離を離して、前記地導体の長手方向に平行に配置された第６の給電線とをさらに備え、
前記第１の給電線及び前記第３の給電線と前記第５の給電線を接続し、
前記第２の給電線及び前記第４の給電線と前記第６の給電線を接続し、
前記第５の給電線を、前記地導体を利用したマイクロストリップ線路で構成し、
前記第６の給電線を、前記地導体に対して前記第５の給電線と反対側の面に、前記地導体を利用したマイクロストリップ線路で構成し、
前記第２の給電線と前記第６の給電線を、前記地導体と前記第１の放射素子を短絡した部分を通して接続し、
前記第４の給電線と前記第６の給電線を、前記地導体と前記第２の放射素子を短絡した部分を通して接続した
ことを特徴とするアンテナ装置。 An elongated ground conductor,
An elongated first radiating element disposed in parallel with the ground conductor in the same plane and short-circuited to the ground conductor near the center in the longitudinal direction;
The elongated second conductor is disposed in parallel with the ground conductor in the same plane as the ground conductor at a position symmetrical to the ground conductor on the opposite side of the first radiating element, and is short-circuited to the ground conductor in the vicinity of the center in the longitudinal direction. Two radiating elements;
An elongated third radiating element disposed in parallel to the first radiating element on the opposite side of the ground conductor and in the same plane as the first radiating element;
An elongated fourth radiating element arranged in parallel with the ground conductor in the same plane at a line-symmetrical position opposite to the third radiating element with respect to the ground conductor;
A first feeder connected between the ground conductor and the first radiating element;
A second feed line connected between the first radiating element and the third radiating element ,
A third feeder connected between the ground conductor and the second radiating element;
A fourth feed line connected between the second radiating element and the fourth radiating element;
A fifth feed line arranged at a predetermined distance from the ground conductor and parallel to the longitudinal direction of the ground conductor;
A sixth feed line disposed on a side opposite to the fifth feed line with respect to the ground conductor and spaced apart from the ground conductor by a predetermined distance and parallel to the longitudinal direction of the ground conductor; ,
Connecting the first and third feeders and the fifth feeder,
Connecting the second and fourth feeder lines and the sixth feeder line;
The fifth feeder line is constituted by a microstrip line using the ground conductor,
The sixth feeder line is constituted by a microstrip line using the ground conductor on the surface opposite to the fifth feeder line with respect to the ground conductor,
Connecting the second feeder line and the sixth feeder line through a portion where the ground conductor and the first radiating element are short-circuited;
The antenna apparatus, wherein the fourth feeding line and the sixth feeding line are connected through a portion where the ground conductor and the second radiating element are short-circuited . 前記第１の放射素子、前記第２の放射素子、前記第３の放射素子、前記第４の放射素子、前記第１の給電線、前記第２の給電線、前記第３の給電線及び前記第４の給電線を前記地導体の長手方向に複数並べ、
前記複数の第１の給電線及び前記複数の第３の給電線を前記第５の給電線に対して縦続的に接続し、
前記複数の第２の給電線及び前記複数の第４の給電線を前記第６の給電線に対して縦続的に接続し、
前記第５の給電線は第１の周波数において励振し、
前記第６の給電線は第２の周波数において励振し、
前記第１の周波数における前記第５の給電線上の前記第１及び第３の給電線の分岐点間の電気長を、前記第２の周波数における前記第６の給電線上の前記第２及び第４の給電線の分岐点間の電気長と等しくした
ことを特徴とする請求項１０記載のアンテナ装置。 The first radiating element, the second radiating element, the third radiating element, the fourth radiating element, the first feeding line, the second feeding line, the third feeding line, and the Arranging a plurality of fourth feeders in the longitudinal direction of the ground conductor,
Connecting the plurality of first power supply lines and the plurality of third power supply lines in cascade with respect to the fifth power supply line;
The plurality of second power supply lines and the plurality of fourth power supply lines are connected in cascade to the sixth power supply line,
The fifth feeder line is excited at a first frequency;
The sixth feeder line is excited at a second frequency;
The electrical length between the branch points of the first and third feed lines on the fifth feed line at the first frequency is defined as the second and fourth on the sixth feed line at the second frequency. The antenna device according to claim 10, wherein the antenna length is equal to an electrical length between branch points of the feeder line.
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