JP2003347842A - Array antenna device - Google Patents
Array antenna deviceInfo
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- JP2003347842A JP2003347842A JP2002151100A JP2002151100A JP2003347842A JP 2003347842 A JP2003347842 A JP 2003347842A JP 2002151100 A JP2002151100 A JP 2002151100A JP 2002151100 A JP2002151100 A JP 2002151100A JP 2003347842 A JP2003347842 A JP 2003347842A
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- conductor
- array antenna
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、アレイアンテナ装
置に関する。The present invention relates to an array antenna device.
【０００２】[0002]
【従来の技術】例えば、マイクロ波やミリ波用のアンテ
ナ装置の利得を上げる方法として、誘電体板に複数の放
射素子を縦横に等間隔に配列するアレイ化が行われてい
る。2. Description of the Related Art For example, as a method of increasing the gain of a microwave or millimeter-wave antenna device, an array in which a plurality of radiating elements are arranged on a dielectric plate at equal intervals vertically and horizontally has been used.
【０００３】図７は従来のアレイアンテナ装置の放射素
子板の概念図である。FIG. 7 is a conceptual diagram of a radiating element plate of a conventional array antenna device.
【０００４】アレイアンテナ装置は、主に図には示され
ていない接地導体板と、誘電体板１に複数（図では１６
個）の放射素子２ａが縦横に等間隔Ｌ１で配列された放
射素子板３とを積層したものである。The array antenna device mainly includes a ground conductor plate (not shown) and a plurality of (16
Radiating elements 2a are stacked with radiating element plates 3 arranged vertically and horizontally at equal intervals L1.
【０００５】このアレイアンテナ装置の周波数帯域を広
げるため、多数の放射素子と、誘電体板に対して平行、
かつ各放射素子と対応する位置に指向性調整素子や帯域
調整素子等を誘電体板を介して積層することが行われて
いる。In order to widen the frequency band of this array antenna device, a large number of radiating elements, parallel to a dielectric plate,
In addition, a directivity adjusting element, a band adjusting element, and the like are stacked at a position corresponding to each radiating element via a dielectric plate.
【０００６】アレイアンテナ装置の放射素子は、基本的
には送信高周波信号の１／２波長に共振して電波を放射
するように導体によって構成されている。The radiating element of the array antenna device is basically constituted by a conductor so as to resonate with a half wavelength of a transmission high-frequency signal and radiate a radio wave.
【０００７】[0007]
【発明が解決しようとする課題】ところで、この種のア
レイアンテナ装置は、出力を高めるために、複数の放射
素子が給電線路で並列に連結されている。By the way, in this type of array antenna device, a plurality of radiating elements are connected in parallel by a feed line in order to increase the output.
【０００８】このため、各放射素子間において互いに影
響したり、放射素子に対して給電線路の影響がアンテナ
装置の指向性に影響（不要放射の発生、指向性の低下
等）という問題がある。For this reason, there is a problem in that the radiating elements affect each other, or that the feed line affects the radiating element, which affects the directivity of the antenna device (generation of unnecessary radiation, reduction of directivity, and the like).
【０００９】また、一般のアンテナ装置は、１つの周波
数帯域に効率よく適用できるように構成されている。A general antenna device is configured so that it can be efficiently applied to one frequency band.
【００１０】さらに、最近は、複数の周波数帯域の電波
を用いた無線通信系の需要が多くなっているので、それ
に伴いアンテナの数も増加させる必要がある。Furthermore, recently, the demand for wireless communication systems using radio waves in a plurality of frequency bands has been increasing, and accordingly, the number of antennas must be increased.
【００１１】しかしながらアンテナの数を増加すると設
備費も増加するので、設備費を減少させるために１つの
アンテナ装置を複数の周波数帯域に効率よく適用できる
ようにすることが望まれている。However, as the number of antennas increases, the equipment cost also increases. Therefore, it is desired that one antenna device can be efficiently applied to a plurality of frequency bands in order to reduce the equipment cost.
【００１２】そこで、本発明の主な目的は、指向性のよ
いアンテナ装置を提供することにあり、本発明の他の目
的は、複数の周波数帯域に効率よく適用でき、良好な指
向性を有するアンテナ装置を提供することにあり、本発
明のさらに他の目的は、複数の周波数帯域に効率よく適
用でき、良好な指向性を有し、かつ広い周波数帯域を有
するアンテナ装置を提供することにある。Therefore, a main object of the present invention is to provide an antenna device having good directivity, and another object of the present invention is to apply the antenna device to a plurality of frequency bands efficiently and to have good directivity. It is another object of the present invention to provide an antenna device that can be efficiently applied to a plurality of frequency bands, has good directivity, and has a wide frequency band. .
【００１３】[0013]
【課題を解決するための手段】上記目的を達成するため
に請求項１に記載の発明は、一方の面に複数の放射素子
が縦横に配列された誘電体板を有するアレイアンテナ装
置において、放射素子が複数のグループに小分けされ、
各グループ間の間隔と各放射素子の間隔とが異なってい
るものである。According to one aspect of the present invention, there is provided an array antenna apparatus having a dielectric plate on one surface of which a plurality of radiating elements are arranged vertically and horizontally. The elements are subdivided into multiple groups,
The distance between the groups and the distance between the radiating elements are different.
【００１４】請求項１に記載の構成に加え本発明のアレ
イアンテナ装置の放射素子は、送信高周波信号の１／２
波長の長さの中心導体部と、中心導体部の両側に該中心
導体部に対して自己対称となるように一体的に形成さ
れ、他の送信高周波信号の１／２波長の長さの導体部と
を有してもよい。In addition to the structure of the first aspect, the radiating element of the array antenna apparatus according to the present invention has a structure in which the radiating element is １ ／ of the transmitting high-frequency signal.
A central conductor portion having a wavelength length, and a conductor having a half wavelength length of another transmission high-frequency signal integrally formed on both sides of the central conductor portion so as to be self-symmetric with respect to the central conductor portion. May be included.
【００１５】請求項３に記載の発明は請求項１または２
に記載の構成に加え、誘電体板と平行、かつ放射素子と
対応する位置に複数の帯域調整導体素子が配置されてい
てもよい。The third aspect of the present invention is the first or second aspect.
In addition to the above configuration, a plurality of band adjusting conductor elements may be arranged at positions parallel to the dielectric plate and corresponding to the radiation elements.
【００１６】請求項３に記載の発明は、請求項１または
２に記載の構成に加え、帯域調整導体素子は、送信高周
波信号の１／２波長の長さの中心導体板と、中心導体板
の両側に独立、かつ相互対称に配置され、送信高周波信
号と異なる周波数の送信高周波信号の１／２波長の長さ
の他の導体板とを有してもよい。According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the band adjustment conductor element includes a center conductor plate having a length of a half wavelength of a transmission high-frequency signal, and a center conductor plate. May be arranged independently and symmetrically on both sides of the transmission high frequency signal, and another conductor plate having a length of 波長 wavelength of the transmission high frequency signal of a different frequency.
【００１７】請求項３に記載の発明は、請求項１または
２に記載の構成に加え、帯域調整導体素子は、送信高周
波信号の１／２波長の長さの導体板と、導体板の両側に
独立、かつ非対称に配置され、送信高周波信号と異なる
周波数の送信高周波信号の１／２波長の長さの他の導体
板とを有してもよい。According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the band adjustment conductor element includes a conductor plate having a length of a half wavelength of the transmission high-frequency signal, and both sides of the conductor plate. Independently and asymmetrically, and another conductor plate having a length of a half wavelength of a transmission high-frequency signal having a different frequency from the transmission high-frequency signal.
【００１８】本発明によれば、放射素子が複数のグルー
プに小分けされ、各グループ間の間隔と各放射素子の間
隔とが異なっているので、グループ間同士の電波の干渉
の度合いが低下し、給電線路と放射素子との間の干渉の
度合いが低下し、その結果としてアンテナ装置全体の指
向性が向上する。According to the present invention, since the radiating elements are subdivided into a plurality of groups, and the intervals between the groups are different from the intervals between the radiating elements, the degree of interference of radio waves between the groups is reduced, The degree of interference between the feed line and the radiating element is reduced, and as a result, the directivity of the entire antenna device is improved.
【００１９】また、本発明によれば、放射素子の給電配
線に給電することにより、長い方の導体部が低い周波数
帯域の信号に共振して低い周波数帯域の電波を放射し、
短い方の導体部が高い周波数帯域の信号に共振して高い
周波数帯域の電波を放射するので、複数の周波数帯域に
効率よく適用できる。Further, according to the present invention, by feeding power to the power supply wiring of the radiating element, the longer conductor resonates with a signal in a low frequency band and emits a radio wave in a low frequency band,
Since the shorter conductor resonates with a signal in a high frequency band and emits a radio wave in a high frequency band, it can be efficiently applied to a plurality of frequency bands.
【００２０】さらに、誘電体板に対して平行、かつ放射
素子と対応する位置に複数の帯域調整導体素子を配置す
ることにより、広い周波数帯域を有することができる。Further, by disposing a plurality of band adjusting conductor elements parallel to the dielectric plate and at positions corresponding to the radiation elements, a wide frequency band can be provided.
【００２１】[0021]
【発明の実施の形態】以下、本発明の実施の形態を添付
図面に基づいて詳述する。Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
【００２２】図１は本発明のアレイアンテナ装置に用い
られる放射素子板の一実施の形態を示す平面図である。FIG. 1 is a plan view showing one embodiment of a radiating element plate used in the array antenna device of the present invention.
【００２３】放射素子板３−１は、誘電体板１の上に複
数（図では１６個であるが限定されない。）の放射素子
２が複数（図では４個であるが限定されない。）のグル
ープ４ａ〜４ｄに小分けされ、各グループ４ａ〜４ｄ間
の間隔Ｌ２と各放射素子２間の間隔Ｌ３とが異なってい
る（Ｌ２＜Ｌ３が好ましい。）ものである。The radiating element plate 3-1 has a plurality of (but not limited to 16 in the figure) radiating elements 2 on the dielectric plate 1 (the number is not limited to four in the figure). The distance is divided into groups 4a to 4d, and the distance L2 between the groups 4a to 4d is different from the distance L3 between the radiating elements 2 (L2 <L3 is preferable).
【００２４】放射素子２をこのように複数のグループ４
ａ〜４ｄに小分けして配列することで、グループ４ａ〜
４ｄ間同士の干渉の度合いが低下し、図には示されてい
ない給電線路と放射素子２との干渉の度合いが低下し、
その結果としてアンテナ装置全体の指向性が向上する。The radiating element 2 is thus divided into a plurality of groups 4
By subdividing and arranging into groups a to 4d, groups 4a to 4d are arranged.
4d, the degree of interference between the feed lines (not shown) and the radiating element 2 decreases,
As a result, the directivity of the entire antenna device is improved.
【００２５】図２（ａ）は本発明のアレイアンテナ装置
に用いられる放射素子の一実施の形態を示す平面図であ
り、図２（ｂ）は図２（ａ）に示した放射素子を用いた
放射素子板である。FIG. 2A is a plan view showing one embodiment of a radiating element used in the array antenna device of the present invention, and FIG. 2B is a plan view showing the radiating element shown in FIG. 2A. Radiating element plate.
【００２６】図２（ａ）に示す本放射素子２は、送信高
周波信号（周波数ｆ１）の１／２波長の長さ（λ１／
２）の中心導体板２ａと、中心導体板２ａの両側に中心
導体部２ａに対して自己対称となるように一体的に形成
され、他の送信高周波信号（周波数ｆ２、ｆ１＜ｆ２）
の１／２波長の長さ（λ２／２）の導体板２ｂ、２ｃと
を有し、各導体板２ａ〜２ｃの間には中心導体板２ａの
長手方向に沿って切り欠き２ｄ、２ｅが形成されてい
る。放射素子２は例えば金（銀）メッキされた銅板から
なっている。The radiating element 2 shown in FIG. 2A has a length (λ1 / λ1 / 1/2) of a transmission high-frequency signal (frequency f1).
2) The central conductor plate 2a and both sides of the central conductor plate 2a are integrally formed so as to be self-symmetric with respect to the central conductor portion 2a, and other transmission high-frequency signals (frequency f2, f1 <f2)
And conductor plates 2b and 2c having a length (λ2 / 2) of １ ／ wavelength, and notches 2d and 2e are provided between the conductor plates 2a to 2c along the longitudinal direction of the central conductor plate 2a. Is formed. The radiating element 2 is made of, for example, a gold (silver) plated copper plate.
【００２７】図２（ｂ）に示す放射素子板３−２は、誘
電体板（例えばテフロン「登録商標」、セラミックス板
若しくはガラスエポキシ板）１上に複数（図では１６枚
であるが限定されない。）の放射素子２が縦横に配列さ
れると共に、４つのグループ６ａ〜６ｄに小分けされて
いる。各放射素子２間の間隔Ｌ２と、各グループ６ａ〜
６ｄ間の間隔Ｌ３とが異なるように小分けされている
（Ｌ２＜Ｌ３）。The radiating element plate 3-2 shown in FIG. 2 (b) is provided on a dielectric plate (for example, Teflon "registered trademark", a ceramic plate or a glass epoxy plate) 1 in a plural number (the number is not limited to 16 in the figure). ) Are arranged vertically and horizontally and subdivided into four groups 6a to 6d. The distance L2 between each radiating element 2 and each group 6a-
It is subdivided so that the interval L3 between 6d is different (L2 <L3).
【００２８】各放射素子２の給電点はグループ６ａ〜６
ｄごとに接続され、各接続点は給電線路で並列に接続さ
れている。給電線路５の末端に接続されたスルーホール
７は同軸ケーブルに接続するためのものである。The feed points of each radiating element 2 are in groups 6a-6
d, and each connection point is connected in parallel by a feed line. The through hole 7 connected to the end of the feed line 5 is for connecting to a coaxial cable.
【００２９】図３（ａ）は本発明のアレイアンテナ装置
に用いられる帯域調整導体素子の一実施の形態を示す平
面図であり、図３（ｂ）は図３（ａ）に示した帯域調整
導体素子を用いた帯域調整導体素子板の平面図である。FIG. 3A is a plan view showing one embodiment of the band adjusting conductor element used in the array antenna apparatus of the present invention, and FIG. 3B is a plan view showing the band adjusting conductor element shown in FIG. It is a top view of the band adjustment conductor element board using a conductor element.
【００３０】図３（ａ）に示す帯域調整導体素子８−１
は、送信高周波信号（周波数ｆ１）の１／２波長の長さ
（λ１／２）の中心導体板（例えば金メッキ若しくは銀
メッキされた銅板）８−１ａと、中心導体板８−１ａの
両側に独立、かつ相互対称に配置され、他の送信高周波
信号（周波数ｆ２）の１／２波長の長さ（λ２／２）の
他の導体板（金メッキ若しくは銀メッキされた銅板）８
−１ｂ、８−１ｃとで構成されている。The band adjusting conductor element 8-1 shown in FIG.
Are located on both sides of the center conductor plate (for example, a gold-plated or silver-plated copper plate) 8-1a having a half wavelength (λ1 / 2) of the transmission high-frequency signal (frequency f1). Another conductor plate (gold-plated or silver-plated copper plate) 8 which is arranged independently and symmetrically to each other and has a half wavelength (λ2 / 2) of another transmission high-frequency signal (frequency f2) 8
-1b and 8-1c.
【００３１】図３（ｂ）に示す帯域調整導体素子板９−
１は、図１（ｂ）に示した放射素子板３−２と平行、か
つ放射素子２に対応する位置に複数（図では１６個であ
るが、限定されるものではなく、放射素子２と同数であ
ればよい。）の帯域調整導体素子８−１を誘電体板（例
えばテフロン板、セラミックス板若しくはガラスエポキ
シ板）１０に配列したものである。従って、帯域調整導
体素子８−１も放射素子２と同様に複数（図では４個で
あるが、放射素子２と同数であれば限定されない。）の
グループ１１ａ〜１１ｄに小分けされている。The band adjusting conductor element plate 9- shown in FIG.
1 is provided at a plurality of positions (16 in the figure, but not limited thereto) in parallel with the radiating element plate 3-2 shown in FIG. The same number of band adjusting conductor elements 8-1 are arranged on a dielectric plate (for example, a Teflon plate, a ceramic plate or a glass epoxy plate) 10. Therefore, the band adjusting conductor element 8-1 is also subdivided into a plurality of groups (four in the figure, but not limited as long as the number is equal to the number of the radiating elements 2) similarly to the radiating element 2.
【００３２】図４は本発明のアレイアンテナ装置の一実
施の形態を示す拡散分解斜視図である。FIG. 4 is an exploded perspective view showing an embodiment of the array antenna device of the present invention.
【００３３】このアレイアンテナ装置１２は、導体板
（例えば金メッキ若しくは銀メッキされた銅板）からな
る接地導体板１３と、ボンディングシート（図示せ
ず。）と、放射素子板３−２と、ボンディングシート
（図示せず。）と、帯域調整導体素子板９−１とが順次
積層された後、加熱溶融接着により一体化されたもので
ある。The array antenna device 12 includes a ground conductor plate 13 made of a conductor plate (for example, a gold-plated or silver-plated copper plate), a bonding sheet (not shown), a radiating element plate 3-2, and a bonding sheet. (Not shown) and the band adjusting conductor element plate 9-1 are sequentially laminated, and then integrated by heat fusion bonding.
【００３４】なお、接地導体板１３には同軸ケーブル
（図示せず。）を固定するための貫通穴１４が形成され
ており、同軸ケーブルの網線が接続され、同軸ケーブル
の中心導体が放射素子板３−２のスルーホール７に接続
されるようになっている。The ground conductor plate 13 is provided with a through hole 14 for fixing a coaxial cable (not shown). The through hole 14 is connected to the coaxial cable net, and the center conductor of the coaxial cable is a radiating element. It is connected to the through hole 7 of the plate 3-2.
【００３５】本アレイアンテナ装置１２は、放射素子２
が複数のグループ６ａ〜６ｄに小分けされ、各放射素子
２の間隔Ｌ２と各グループ６ａ〜６ｄ間の間隔Ｌ３とが
異なっているので、グループ６ａ〜６ｄ間同士の電波の
干渉の度合いが低下し、給電線路５と放射素子２との間
の干渉の度合いが低下し、その結果としてアンテナ装置
全体の指向性が向上する。The present array antenna device 12 includes the radiating element 2
Are divided into a plurality of groups 6a to 6d, and the distance L2 between the radiating elements 2 and the distance L3 between the groups 6a to 6d are different, so that the degree of interference of radio waves between the groups 6a to 6d decreases. Therefore, the degree of interference between the feed line 5 and the radiating element 2 is reduced, and as a result, the directivity of the entire antenna device is improved.
【００３６】また、放射素子２の給電配線５に給電する
ことにより、長い方の中心導体部２ａが低い周波数帯域
（ｆ１）の信号に共振して低い周波数帯域の電波を放射
し、短い方の導体部２ｂ、２ｃが高い周波数帯域（ｆ
２）の信号に共振して高い周波数帯域の電波を放射する
ので、１つの放射素子２、すなわち１つのアレイアンテ
ナ装置１２で複数の周波数帯域に効率よく適用できる。Further, by supplying power to the power supply wiring 5 of the radiating element 2, the longer central conductor portion 2a resonates with a signal in the lower frequency band (f1) to radiate radio waves in the lower frequency band, and The conductor portions 2b and 2c have a high frequency band (f
Since the radio wave of a high frequency band is radiated by resonating with the signal of 2), one radiating element 2, that is, one array antenna device 12 can be efficiently applied to a plurality of frequency bands.
【００３７】さらに、放射素子板３−２と平行、かつ放
射素子２と対応する位置に複数の帯域調整導体素子８−
１が配置されているので、このアレイアンテナ装置１２
は、広い周波数帯域を有することができる。Further, a plurality of band adjusting conductor elements 8-8 are provided at positions parallel to the radiating element plate 3-2 and corresponding to the radiating elements 2.
1, the array antenna device 12
Can have a wide frequency band.
【００３８】図５（ａ）は本発明のアレイアンテナ装置
に用いられる帯域調整導体素子の他の実施の形態を示す
平面図であり、図５（ｂ）は図５（ａ）に示した帯域調
整導体素子を用いた帯域調整導体素子板の平面図であ
る。FIG. 5A is a plan view showing another embodiment of the band adjusting conductor element used in the array antenna device of the present invention, and FIG. 5B is a plan view showing the band shown in FIG. It is a top view of a band adjustment conductor element board using an adjustment conductor element.
【００３９】図３（ａ）、（ｂ）に示した実施の形態と
の相違点は、送信高周波信号（周波数ｆ１）の１／２波
長の長さ（λ１／２）の中心導体板８−２ａと、中心導
体板８−２ａの両側に独立、かつ非対称（不等間隔）に
配置され、送信高周波信号と異なる周波数ｆ２の送信高
周波信号の１／２波長の長さ（λ２／２）の他の導体板
８−２ｂ、８−２ｃとを有する点である。The difference from the embodiment shown in FIGS. 3 (a) and 3 (b) is that the center conductor plate 8--having a length (λ1 / 2) of a half wavelength of the transmission high-frequency signal (frequency f1) is used. 2a and a half-wavelength (λ2 / 2) of a transmission high-frequency signal having a frequency f2 different from the transmission high-frequency signal and arranged independently and asymmetrically (unequally spaced) on both sides of the center conductor plate 8-2a. This is the point having the other conductor plates 8-2b and 8-2c.
【００４０】図５（ｂ）に示す帯域調整導体素子板９−
２は、図１（ｂ）に示した放射素子板３−２と平行、か
つ放射素子２に対応する位置に複数（図では１６個であ
るが、限定されるものではなく、放射素子と同数であれ
ばよい。）の帯域調整導体素子８−２を誘電体板（例え
ばテフロン板、セラミックス板若しくはガラスエポキシ
板）１０に配列したものである。従って、帯域調整導体
素子８−２も放射素子２と同様に複数（図では４個であ
るが、放射素子板と同様であれば限定されない。）のグ
ループ１５ａ〜１５ｄに小分けされている。The band adjusting conductor element plate 9- shown in FIG.
2 are provided at a position parallel to the radiating element plate 3-2 shown in FIG. ) Is arranged on a dielectric plate (for example, a Teflon plate, a ceramics plate, or a glass epoxy plate) 10. Therefore, the band adjusting conductor element 8-2 is also subdivided into a plurality (four in the figure, but not limited as long as it is the same as the radiating element plate) of the groups 15a to 15d similarly to the radiating element 2.
【００４１】このような帯域調整導体素子板９−２を用
いることにより、各放射素子から放射されたメインビー
ムの指向性を平面アンテナ全体の中心に寄せ、アンテナ
装置全体の指向性を向上させるという格別な効果が得ら
れる。By using such a band adjusting conductor element plate 9-2, the directivity of the main beam emitted from each radiating element is brought to the center of the entire planar antenna, and the directivity of the entire antenna device is improved. A special effect can be obtained.
【００４２】図６は本発明のアレイアンテナ装置の他の
実施の形態を示す拡散分解斜視図である。FIG. 6 is an exploded perspective view showing another embodiment of the array antenna device of the present invention.
【００４３】図４に示した実施の形態との相違点は、図
５（ｂ）に示した帯域調整導体素子板を用いた点であ
る。The difference from the embodiment shown in FIG. 4 is that the band adjusting conductor element plate shown in FIG. 5B is used.
【００４４】図６に示すアレイアンテナ装置１６は、図
５（ｂ）に示した帯域調整導体素子板９−２が用いられ
ているので、帯域調整導体素子８−２の中心導体板８−
２ａが低い周波数帯域ｆ１側の信号に対して強く影響し
て感度を下げるように作用して周波数帯域ｆ１の帯域幅
を広げるように機能し、帯域調整導体素子８−２の導体
板８−２ｂ、８−２ｃが高い周波数帯域ｆ２側の信号に
強く影響して感度を下げるように作用させて周波数帯域
ｆ２の帯域幅を広げるように機能する。In the array antenna device 16 shown in FIG. 6, since the band adjusting conductor element plate 9-2 shown in FIG. 5B is used, the center conductor plate 8- of the band adjusting conductor element 8-2 is used.
2a functions to strongly influence the signal in the lower frequency band f1 and to lower the sensitivity, thereby increasing the bandwidth of the frequency band f1, and the conductor plate 8-2b of the band adjusting conductor element 8-2. , 8-2c strongly influences the signal in the high frequency band f2 side and acts to lower the sensitivity, thereby functioning to widen the bandwidth of the frequency band f2.
【００４５】このアレイアンテナ装置１６によれば、１
つのアレイアンテナ装置により複数の周波数帯域に効率
よく適合し、不要電波の放射を抑制し、電波放射周波数
帯域が広くなるように調整することができる。According to the array antenna device 16, 1
With one array antenna device, it is possible to efficiently adjust to a plurality of frequency bands, suppress emission of unnecessary radio waves, and widen a radio wave radiation frequency band.
【００４６】以上において、本発明は、アレイアンテナ
を複数のグループに小分けし、放射素子間の間隔Ｌ１及
び各グループ間の間隔Ｌ２を調整することにより、指向
性の優れたアレイアンテナ装置を提供することができ
る。As described above, the present invention provides an array antenna device having excellent directivity by subdividing the array antenna into a plurality of groups and adjusting the interval L1 between the radiating elements and the interval L2 between the groups. be able to.
【００４７】[0047]
【発明の効果】以上要するに本発明によれば、次のよう
な優れた効果を発揮する。
（１）指向性のよいアンテナ装置を提供することができ
る。
（２）複数の周波数帯域に効率よく適用でき、良好な指
向性を有するアンテナ装置を提供することができる。
（３）複数の周波数帯域に効率よく適用でき、良好な指
向性を有し、かつ広い周波数帯域を有するアンテナ装置
を提供することができる。In summary, according to the present invention, the following excellent effects are exhibited. (1) An antenna device with good directivity can be provided. (2) An antenna device that can be efficiently applied to a plurality of frequency bands and has good directivity can be provided. (3) An antenna device that can be efficiently applied to a plurality of frequency bands, has good directivity, and has a wide frequency band can be provided.
【図１】本発明のアレイアンテナ装置に用いられる放射
素子板の一実施の形態を示す平面図である。FIG. 1 is a plan view showing one embodiment of a radiating element plate used in an array antenna device of the present invention.
【図２】（ａ）は本発明のアレイアンテナ装置に用いら
れる放射素子の一実施の形態を示す平面図であり、
（ｂ）は（ａ）に示した放射素子を用いた放射素子板で
ある。FIG. 2A is a plan view illustrating an embodiment of a radiating element used in the array antenna device of the present invention,
(B) is a radiating element plate using the radiating element shown in (a).
【図３】（ａ）は本発明のアレイアンテナ装置に用いら
れる帯域調整導体素子の一実施の形態を示す平面図であ
り、（ｂ）は（ａ）に示した帯域調整導体素子を用いた
帯域調整導体素子板の平面図である。FIG. 3A is a plan view showing an embodiment of a band adjusting conductor element used in the array antenna device of the present invention, and FIG. 3B is a plan view using the band adjusting conductor element shown in FIG. It is a top view of a band adjustment conductor element board.
【図４】本発明のアレイアンテナ装置の一実施の形態を
示す拡散分解斜視図である。FIG. 4 is an exploded perspective view showing an embodiment of the array antenna device of the present invention.
【図５】（ａ）は本発明のアレイアンテナ装置に用いら
れる帯域調整導体素子の他の実施の形態を示す平面図で
あり、（ｂ）は（ａ）に示した帯域調整導体素子を用い
た帯域調整導体素子板の平面図である。5A is a plan view showing another embodiment of the band adjusting conductor element used in the array antenna device of the present invention, and FIG. 5B is a plan view showing the band adjusting conductor element shown in FIG. FIG. 4 is a plan view of a band adjustment conductor element plate that has been removed.
【図６】本発明のアレイアンテナ装置の他の実施の形態
を示す拡散分解斜視図である。FIG. 6 is an exploded perspective view showing another embodiment of the array antenna device of the present invention.
【図７】従来のアレイアンテナ装置の放射素子の概念図
である。FIG. 7 is a conceptual diagram of a radiating element of a conventional array antenna device.
１ 誘電体板 ２ 放射素子 ２ａ 中心導体板 ２ｂ、２ｃ 導体板 ３−２ 放射素子板 ５ 給電線路 ６ａ〜６ｄ グループ ７ スルーホール 1 dielectric plate 2 Radiating element 2a center conductor plate 2b, 2c conductor plate 3-2 Radiating element plate 5 Feeding line 6a-6d group 7 Through hole
───────────────────────────────────────────────────── フロントページの続き (72)発明者 嘉戸 誠司 東京都千代田区大手町一丁目６番１号 日 立電線株式会社内 (72)発明者 佐藤 広明 東京都日野市旭が丘３丁目１番地の１ 株 式会社東芝日野工場内 Ｆターム(参考） 5J020 BC04 BC13 DA01 DA03 DA08 5J021 AA05 AA09 AA11 AB06 BA05 CA03 FA32 JA02 JA03 5J045 AA02 AA03 DA10 EA08 FA02 GA02 HA03 JA04 JA11 5J046 AA04 AB03 AB13 UA02 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Seiji Kado 1-6-1 Otemachi, Chiyoda-ku, Tokyo Sun Standing wire company (72) Inventor Hiroaki Sato One share of 3-1-1 Asahigaoka, Hino-shi, Tokyo Toshiba Hino Plant F term (reference) 5J020 BC04 BC13 DA01 DA03 DA08 5J021 AA05 AA09 AA11 AB06 BA05 CA03 FA32 JA02 JA03 5J045 AA02 AA03 DA10 EA08 FA02 GA02 HA03 JA04 JA11 5J046 AA04 AB03 AB13 UA02
Claims (5)
された誘電体板を有するアレイアンテナ装置において、
上記放射素子が複数のグループに小分けされ、各グルー
プ間の間隔と各放射素子の間隔とが異なっていることを
特徴とするアレイアンテナ装置。1. An array antenna device having a dielectric plate in which a plurality of radiating elements are vertically and horizontally arranged on one surface,
An array antenna device, wherein the radiating elements are subdivided into a plurality of groups, and an interval between the groups is different from an interval between the radiating elements.
２波長の長さの中心導体部と、該中心導体部の両側に該
中心導体部に対して自己対称となるように一体的に形成
され、他の送信高周波信号の１／２波長の長さの導体部
とを有する請求項１に記載のアレイアンテナ装置。2. The radiating element according to claim 1, wherein said radiating element has a frequency of
A central conductor portion having a length of two wavelengths, and integrally formed on both sides of the central conductor portion so as to be self-symmetric with respect to the central conductor portion, and having a length of 波長 wavelength of another transmission high-frequency signal The array antenna device according to claim 1, further comprising:
と対応する位置に複数の帯域調整導体素子が配置されて
いる請求項１または２に記載のアレイアンテナ装置。3. The array antenna device according to claim 1, wherein a plurality of band adjusting conductor elements are arranged at positions parallel to the dielectric plate and corresponding to the radiation elements.
号の１／２波長の長さの中心導体板と、該中心導体板の
両側に独立、かつ相互対称に配置され、上記送信高周波
信号と異なる周波数の送信高周波信号の１／２波長の長
さの他の導体板とを有する請求項３に記載のアレイアン
テナ装置。4. The band adjusting conductor element is disposed independently and symmetrically on both sides of the center conductor plate having a length of 送信 wavelength of the transmission high frequency signal. 4. The array antenna device according to claim 3, further comprising another conductor plate having a length of a half wavelength of a transmission high-frequency signal having a different frequency.
号の１／２波長の長さの導体板と、該導体板の両側に独
立、かつ非対称に配置され、上記送信高周波信号と異な
る周波数の送信高周波信号の１／２波長の長さの他の導
体板とを有する請求項３に記載のアレイアンテナ装置。5. The band adjusting conductor element is provided with a conductor plate having a length of 波長 wavelength of a transmission high-frequency signal and independent and asymmetrically disposed on both sides of the conductor plate, and having a frequency different from that of the transmission high-frequency signal. 4. The array antenna device according to claim 3, further comprising another conductive plate having a length of a half wavelength of the transmission high-frequency signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002151100A JP4198943B2 (en) | 2002-05-24 | 2002-05-24 | Array antenna device |
| US10/446,001 US7026993B2 (en) | 2002-05-24 | 2003-05-27 | Planar antenna and array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002151100A JP4198943B2 (en) | 2002-05-24 | 2002-05-24 | Array antenna device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003347842A true JP2003347842A (en) | 2003-12-05 |
| JP4198943B2 JP4198943B2 (en) | 2008-12-17 |
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ID=29768785
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|---|---|---|---|
| JP2002151100A Expired - Fee Related JP4198943B2 (en) | 2002-05-24 | 2002-05-24 | Array antenna device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005099039A1 (en) * | 2004-03-31 | 2005-10-20 | Toto Ltd. | Microstrip antenna |
| JP2009540691A (en) * | 2006-06-09 | 2009-11-19 | インテル コーポレイション | Multi-band antenna array using electromagnetic band gap structure |
| JP2010016704A (en) * | 2008-07-04 | 2010-01-21 | Mitsubishi Electric Corp | Array antenna |
| WO2023058876A1 (en) * | 2021-10-05 | 2023-04-13 | 서울대학교산학협력단 | Antenna unit and array antenna including same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9124006B2 (en) * | 2011-03-11 | 2015-09-01 | Autoliv Asp, Inc. | Antenna array for ultra wide band radar applications |
-
2002
- 2002-05-24 JP JP2002151100A patent/JP4198943B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005099039A1 (en) * | 2004-03-31 | 2005-10-20 | Toto Ltd. | Microstrip antenna |
| US7952534B2 (en) | 2004-03-31 | 2011-05-31 | Toto Ltd. | Microstrip antenna |
| CN1938902B (en) * | 2004-03-31 | 2012-05-30 | Toto株式会社 | Microstrip antenna |
| JP2009540691A (en) * | 2006-06-09 | 2009-11-19 | インテル コーポレイション | Multi-band antenna array using electromagnetic band gap structure |
| JP2010016704A (en) * | 2008-07-04 | 2010-01-21 | Mitsubishi Electric Corp | Array antenna |
| WO2023058876A1 (en) * | 2021-10-05 | 2023-04-13 | 서울대학교산학협력단 | Antenna unit and array antenna including same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4198943B2 (en) | 2008-12-17 |
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