JP2008160433A - Antenna device - Google Patents

Antenna device Download PDF

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Publication number
JP2008160433A
JP2008160433A JP2006346328A JP2006346328A JP2008160433A JP 2008160433 A JP2008160433 A JP 2008160433A JP 2006346328 A JP2006346328 A JP 2006346328A JP 2006346328 A JP2006346328 A JP 2006346328A JP 2008160433 A JP2008160433 A JP 2008160433A
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Prior art keywords
reflector
antenna
antenna device
ground plate
array antenna
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JP2006346328A
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Japanese (ja)
Inventor
Minoru Hasegawa
実 長谷川
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority to JP2006346328A priority Critical patent/JP2008160433A/en
Priority to KR1020070048143A priority patent/KR20080059012A/en
Priority to US11/962,951 priority patent/US20080169994A1/en
Priority to EP07123990A priority patent/EP1936737A1/en
Priority to CNA2007101597734A priority patent/CN101207238A/en
Publication of JP2008160433A publication Critical patent/JP2008160433A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/102—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are of convex toroïdal shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0087—Apparatus or processes specially adapted for manufacturing antenna arrays

Abstract

<P>PROBLEM TO BE SOLVED: To provide an antenna device that can be designed using a micro-strip array antenna designing method while improving an F/B ratio by at least 10 dB, thereby resisting a wind pressure load in spite of small size and light weight. <P>SOLUTION: The antenna device includes an array antenna 25 comprising a plurality of antenna elements 20 arranged on one surface of a rectangular ground plate 10 composed of a short side and a long side and a reflector 60 having a conductive material whose cross section is nearly a half cylinder in an circular arc shape, in which a width between parallel linear end portions corresponding to an arc of the cross section is longer than the short side of the ground plate 10. The array antenna 25 is disposed such that the other surface of the ground plate 10 faces the inner wall surface of a depression part of the reflector 60 and the ground plate 10 is disposed in the same plane as or in nearly the same plane as each of the linear end portions of the reflector 60. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は移動通信における基地局用アンテナに関し、特にセクターゾーンを構成する基地局用アンテナ装置に関する。   The present invention relates to a base station antenna in mobile communication, and more particularly to a base station antenna apparatus constituting a sector zone.

第２世代までの携帯電話機の基地局用アンテナは、セクターゾーンの構成が十分には普及しておらず、水平面指向性はあらゆる方向に電波が放射されかつ受信できる構造が主流であった。一方第３世代以降、セクターゾーンの構成が普及し、基地局用アンテナでは、セクターゾーン間で互いに電波が干渉しないように、水平面指向性がある方向にビームを出力する構造になって来た。第４世代ではセクターゾーンの構成がさらに進み、隣接するセクターゾーンと全く同じ周波数を同じコードで通信する場合があるため、隣接するセクターゾーンに電波の漏れがあると通信できなくなってしまう。   Up to the second generation of mobile phone base station antennas, the sector zone configuration has not been sufficiently widespread, and the horizontal plane directivity has a structure in which radio waves are radiated and received in all directions. On the other hand, since the third generation, the structure of the sector zone has become widespread, and the base station antenna has been structured to output a beam in a direction with horizontal plane directivity so that radio waves do not interfere with each other between the sector zones. In the fourth generation, the configuration of the sector zone further progresses, and there is a case where the same frequency as that of the adjacent sector zone is communicated with the same code. Therefore, if there is a leakage of radio waves in the adjacent sector zone, communication becomes impossible.

このため、第４世代以降の基地局用アンテナでは、隣接セクタ用アンテナとの干渉は通信品質を低下させたり、ハンドオーバー性能を劣化させる原因になるので、自セクター方向以外のアンテナ利得は可能な限り低いことが望ましい。このような背景より、アンテナ利得最大方向（アンテナの前面）とその逆方向（アンテナの背面）の利得比であるＦ／Ｂ(Front to Back)比を高くすることが必須となっている。   For this reason, in base station antennas of the 4th generation and later, interference with adjacent sector antennas causes communication quality degradation and handover performance degradation, so antenna gains other than in the own sector direction are possible. As low as possible. Against this background, it is essential to increase the F / B (Front to Back) ratio, which is the gain ratio between the maximum antenna gain direction (front surface of the antenna) and the opposite direction (back surface of the antenna).

このような指向性をもったアンテナとして、例えば特許文献１に示すようなダイポールを基本素子とし、反射板と組み合わせたアレイアンテナがある。しかし、このようなアレイアンテナでは、その給電回路の配置場所や固定方法を適切に選ぶ必要があるなど、設計上の問題と使用上の問題があった。一方、マイクロストリップアレイアンテナは、指向性をもったアンテナとして設計が容易なため広く用いられている。マイクロストリップアレイアンテナは、一般的に平板状の地板にアンテナ素子が取り付けられ、その裏面に給電回路が配置される。このような構造のため、マイクロストリップアレイアンテナは、ダイポールアンテナと比較して給電回路の配置が容易であり設計および製造上の利点がある。
特開２００１−１９６８３０号公報 As an antenna having such directivity, for example, there is an array antenna in which a dipole as shown in Patent Document 1 is used as a basic element and combined with a reflector. However, such an array antenna has a problem in terms of design and use, such as the need to appropriately select the location and fixing method of the feeder circuit. On the other hand, microstrip array antennas are widely used because they are easy to design as antennas having directivity. In the microstrip array antenna, an antenna element is generally attached to a flat plate, and a power feeding circuit is disposed on the back surface thereof. Due to such a structure, the microstrip array antenna has an advantage in design and manufacturing because the arrangement of the feeding circuit is easy as compared with the dipole antenna.
JP 2001-196830 A

しかしながらマイクロストリップアレイアンテナにおいて、Ｆ／Ｂ比を高くするためには、その平板状地板を大きくしなければならないが、実用上無限に大きくすることはできないので、結果としてＦ／Ｂ比を２０ｄＢ以上とすることは困難であった。また、セクターゾーンの大きさは世代が新しくなるにしたがって狭くなる傾向にあり、アンテナ装置も取り付け場所が限定されないように小型軽量化が必要である。さらに、屋外に取り付けるので風圧加重が小さくかつ強度確保が容易な形状である必要がある。また、設計・製造および保守が容易なように部品点数が少ない程良い。   However, in the microstrip array antenna, in order to increase the F / B ratio, the flat ground plane must be enlarged, but cannot be increased infinitely in practice. As a result, the F / B ratio is 20 dB or more. It was difficult. In addition, the size of the sector zone tends to become narrower as the generation is new, and the antenna device also needs to be reduced in size and weight so that the mounting location is not limited. Furthermore, since it is attached outdoors, it needs to have a shape with small wind pressure load and easy strength securing. Also, the smaller the number of parts, the better the design, manufacturing and maintenance.

本発明はこのような従来技術の課題を解決するためになされたもにであり、その目的は、マイクロストリップアレイアンテナの設計法がそのまま使用可能で、Ｆ／Ｂ比を１０ｄＢ以上改善することができ、且つ、風圧加重に耐える小型軽量化形状のアンテナ装置を提供することにある。   The present invention has been made in order to solve the problems of the prior art, and the object of the present invention is to be able to use the microstrip array antenna design method as it is and to improve the F / B ratio by 10 dB or more. Another object of the present invention is to provide a small and lightweight antenna device that can withstand wind pressure.

本発明のアンテナ装置は、短辺と長辺とからなる矩形状の接地板の一方の面上に、複数のアンテナ素子を配列して構成されたアレイアンテナと、断面が円弧状の略半筒形形状でなり、当該断面の弧に相当する互いに平行な線形端部間の幅が前記短辺よりも長く形成された導体材を含む反射器とを備え、接地板の他方の面が反射器の凹側内壁面に対向し、且つ、当該接地板が反射器の各線形端部と同一平面又はほぼ同一平面に位置するようにアレイアンテナを配置したことを特徴とする。   An antenna device according to the present invention includes an array antenna configured by arranging a plurality of antenna elements on one surface of a rectangular ground plate having a short side and a long side, and a substantially half-cylinder whose cross section is an arc. And a reflector including a conductor material in which a width between parallel end portions corresponding to an arc of the cross section is longer than the short side, and the other surface of the ground plate is a reflector The array antenna is disposed so as to face the inner wall surface of the concave side and the ground plate is located on the same plane or substantially the same plane as each linear end of the reflector.

本発明のアンテナ装置の反射器は、円筒の主軸を含む面で切断した円筒側面で構成されることを特徴とする。   The reflector of the antenna device of the present invention is characterized in that it is constituted by a cylindrical side surface cut by a plane including the main axis of the cylinder.

本発明のアンテナ装置の使用波長をλとしたとき、反射器の線形端部間の幅はほぼ２λとし、接地板の前記短辺の長さはほぼ0.5λ〜1.5λとすることを特徴とする。   When the operating wavelength of the antenna device of the present invention is λ, the width between the linear ends of the reflector is approximately 2λ, and the length of the short side of the ground plate is approximately 0.5λ to 1.5λ. To do.

本発明のアンテナ装置の反射器は、金属板、金属網又は金属を被覆した誘電体で構成されることを特徴とする。   The reflector of the antenna device of the present invention is characterized in that it is made of a metal plate, a metal net, or a dielectric coated with metal.

本発明のアンテナ装置は、アレイアンテナのみが樹脂性のレドーム内に収容されたことを特徴とする。   The antenna device of the present invention is characterized in that only the array antenna is accommodated in a resinous radome.

本発明のアンテナ装置は、アレイアンテナと反射器とが共に樹脂性のレドーム内に収容されたことを特徴とする。   The antenna device of the present invention is characterized in that both the array antenna and the reflector are accommodated in a resinous radome.

本発明のアンテナ装置の反射器は、レドーム内側に金属を被覆して構成されることを特徴とする。   The reflector of the antenna device of the present invention is characterized by being configured by coating a metal inside the radome.

本発明のアンテナ装置の反射器は、レドームの内側にエッチング形成された金属網で構成されることを特徴とする。   The reflector of the antenna device of the present invention is characterized in that it is composed of a metal net formed by etching inside the radome.

本発明のアンテナ装置によれば、マイクロストリップアレイアンテナの設計法をそのまま使用して設計することが可能で、且つ、Ｆ／Ｂ比を１０ｄＢ以上改善することが可能となる。これにより、小型軽量で、風圧加重に耐える形状のアンテナ装置を提供することができる。   According to the antenna device of the present invention, the microstrip array antenna can be designed using the design method as it is, and the F / B ratio can be improved by 10 dB or more. Thereby, it is possible to provide a small and light antenna device having a shape capable of withstanding wind pressure load.

本発明によるアンテナ装置の実施の形態について図を用いて説明する。図１は、本発明のアンテナ装置の構成を示す基本構成図である。本発明のアンテナ装置１００は、アレイアンテナ２５と反射器６０とから構成されている。アレイアンテナ２５は、短辺と長辺とからなる矩形状の接地板１０の一方の面上に、複数のアンテナ素子２０が保持機構３０により配列され、接地板１０の他方の面には給電回路５０が配備され、複数のアンテナ素子２０と給電回路５０とは給電部４０により接続されて構成されている。アレイアンテナ２５は、円筒の主軸に平行な面で切断した断面の幅が短辺よりも大きい円筒側面で構成された反射器６０の円筒側面の凹側に、接地板１０の他方の面が対向し、且つ断面とほぼ同一面に位置するよう配置されている。   Embodiments of an antenna device according to the present invention will be described with reference to the drawings. FIG. 1 is a basic configuration diagram showing the configuration of the antenna device of the present invention. The antenna device 100 of the present invention includes an array antenna 25 and a reflector 60. The array antenna 25 has a plurality of antenna elements 20 arranged on one surface of a rectangular ground plate 10 having short sides and long sides by a holding mechanism 30, and a power feeding circuit on the other surface of the ground plate 10. 50, and a plurality of antenna elements 20 and the power feeding circuit 50 are connected by a power feeding unit 40. In the array antenna 25, the other surface of the ground plate 10 is opposed to the concave side of the cylindrical side surface of the reflector 60 formed by the cylindrical side surface having a cross-sectional width cut by a surface parallel to the main axis of the cylinder and larger than the short side. And arranged so as to be substantially flush with the cross section.

アンテナ装置１００の反射器６０は、円筒の主軸を含む面で切断した円筒側面で構成されることが好ましい。また、反射器６０は、金属板、金属網又は金属を被覆した誘電体で構成される。さらに、アンテナ装置１００の使用波長をλとしたとき、反射器６０の線形端部間の幅はほぼ２λ、接地板１０の短辺の長さはほぼ0.5λ〜1.5λとなるように構成される。そして、短辺の長さは要求されるビーム幅によって決定される。   The reflector 60 of the antenna device 100 is preferably configured by a cylindrical side surface cut by a plane including the main axis of the cylinder. Moreover, the reflector 60 is comprised with the dielectric material which coat | covered the metal plate, the metal net | network, or the metal. Furthermore, when the operating wavelength of the antenna device 100 is λ, the width between the linear ends of the reflector 60 is approximately 2λ, and the length of the short side of the ground plate 10 is approximately 0.5λ to 1.5λ. The The length of the short side is determined by the required beam width.

図２は、アンテナ素子２０が電波を放射するための給電方法を示したアンテナ素子給電構成図である。図２において、接地板１０の一方の面上には、保持機構３０が接着され、その上にアンテナ素子２０が接着されている。保持機構３０は金属でも絶縁体でもよい。接地板１０の他方の面には、給電回路５０が絶縁層を介して接着されている。接地板１０は、給電部４０が貫通できる構造をしており、給電部４０は、接地板１０を貫通してアンテナ素子２０と給電回路５０とを接続している。このアンテナ素子２０が、接地板１０の長辺に沿って複数個配列されてアレイアンテナ２５が構成される。   FIG. 2 is an antenna element feeding configuration diagram showing a feeding method for the antenna element 20 to radiate radio waves. In FIG. 2, the holding mechanism 30 is bonded on one surface of the ground plate 10, and the antenna element 20 is bonded thereon. The holding mechanism 30 may be a metal or an insulator. A power feeding circuit 50 is bonded to the other surface of the ground plate 10 via an insulating layer. The ground plate 10 has a structure through which the power feeding unit 40 can penetrate, and the power feeding unit 40 connects the antenna element 20 and the power feeding circuit 50 through the ground plate 10. A plurality of antenna elements 20 are arranged along the long side of the ground plate 10 to constitute an array antenna 25.

図３は、本発明によるアンテナ装置の斜視図である。図３において、アンテナ装置１００は、複数のアンテナ素子２０が接地板１０上に配列されたアレイアンテナ２５と、反射器６０とが組み合わされて構成されている。アレイアンテナ２５は、図の上方向に強い指向性を示したメインローブを形成し、サイドローブおよびバックローブがそれに付随して形成される特性を示す。このため反射器６０がメインローブの特性に大きな影響を与えることはなく、サイドローブおよびバックローブの減衰手段として利用できる。したがってこの構成は、放射電波のメインローブに影響をほとんど与えないことから、アンテナ素子２０の形状寸法と個数や配置間隔、接地板１０のサイズ、アレイアンテナ２５と接地板１０との間隔等は、放射電波の周波数、出力電力、要求されるビームパターン等から、マイクロストリップアレイアンテナの設計法を用いて求めることが可能となる。   FIG. 3 is a perspective view of an antenna device according to the present invention. In FIG. 3, the antenna device 100 is configured by combining an array antenna 25 in which a plurality of antenna elements 20 are arranged on the ground plate 10 and a reflector 60. The array antenna 25 forms a main lobe exhibiting strong directivity in the upward direction in the figure, and exhibits characteristics in which side lobes and back lobes are formed accompanying it. For this reason, the reflector 60 does not significantly affect the characteristics of the main lobe, and can be used as means for attenuating the side lobes and back lobes. Accordingly, since this configuration hardly affects the main lobe of the radiated radio wave, the shape and number of the antenna elements 20 and the arrangement interval, the size of the ground plate 10, the interval between the array antenna 25 and the ground plate 10, etc. It can be obtained from the frequency of the radiated radio wave, the output power, the required beam pattern, etc., using the design method of the microstrip array antenna.

図４は、周波数３．８ＧＨｚにおいて、本発明のアンテナ装置のＦ／Ｂ比を示す特性図である。破線は反射器のないアレイアンテナの場合で、実線が本発明のアンテナ装置の特性である。反射器のないアレイアンテナの場合は、左右９０度を過ぎると、サイドローブおよびバックローブの影響が現れ、Ｆ／Ｂ特性を２０ｄＢ以下に抑えることができない。本発明のアンテナ装置においては、メインローブにおいて６０度を越えた辺りから、わずかの減衰が見られるものの、９０度を過ぎたサイドローブおよびバックローブの影響を３０ｄＢ以下に抑えることができ、１０ｄＢ以上の改善効果が見られる。   FIG. 4 is a characteristic diagram showing the F / B ratio of the antenna device of the present invention at a frequency of 3.8 GHz. A broken line is a case of an array antenna without a reflector, and a solid line is a characteristic of the antenna device of the present invention. In the case of an array antenna without a reflector, after 90 degrees to the left and right, the influence of side lobes and back lobes appears, and the F / B characteristics cannot be suppressed to 20 dB or less. In the antenna device of the present invention, although the main lobe exceeds 60 degrees, slight attenuation can be seen, but the influence of side lobes and back lobes exceeding 90 degrees can be suppressed to 30 dB or less, and 10 dB or more. The improvement effect is seen.

図５は、本発明のアンテナ装置の実装の構成を示す実装構成図である。図５ａにおいて、アレイアンテナ２５は、樹脂性のレドーム７０に収容され、反射器６０と組み合わされて一体化され、アンテナ装置１００を構成している。この実装構成によると、既設のアレイアンテナ２５とレドーム７０で構成されたアンテナ装置に、反射器６０とを取り付けることで、容易にＦ／Ｂ特性を改善できる。図５ｂにおいては、アレイアンテナ２５と反射器６０とが、共に樹脂性のレドーム７０に収容されて一体化され、アンテナ装置１００を構成している。この実装構成により、風圧加重に耐える小型軽量のアンテナ装置を提供することができる。反射器６０は、レドーム７０の内側に金属を被覆して構成されても良い。また、レドーム７０の内側にエッチング形成された金属網で構成されても良い。   FIG. 5 is a mounting configuration diagram showing a configuration of mounting the antenna device of the present invention. In FIG. 5 a, the array antenna 25 is accommodated in a resinous radome 70 and combined with the reflector 60 to form an antenna device 100. According to this mounting configuration, the F / B characteristics can be easily improved by attaching the reflector 60 to the antenna device configured by the existing array antenna 25 and radome 70. In FIG. 5 b, the array antenna 25 and the reflector 60 are both housed and integrated in a resinous radome 70 to constitute the antenna device 100. With this mounting configuration, a small and lightweight antenna device that can withstand wind pressure can be provided. The reflector 60 may be configured by covering the inside of the radome 70 with a metal. Further, it may be constituted by a metal net formed by etching inside the radome 70.

以上説明したとおり、本発明によると、マイクロストリップアレイアンテナの設計法をそのまま使用してアンテナ装置を設計することが可能となる。また本発明のアンテナ装置の構成により、Ｆ／Ｂ比を１０ｄＢ以上改善することが可能となる。これにより、小型軽量で、風圧加重に耐えるアンテナ装置を提供することができる。   As described above, according to the present invention, it is possible to design an antenna device using the microstrip array antenna design method as it is. Further, the configuration of the antenna device of the present invention can improve the F / B ratio by 10 dB or more. Thereby, it is possible to provide an antenna device that is small and light and can withstand wind pressure load.

本発明のアンテナ装置の構成を示す基本構成図。The basic block diagram which shows the structure of the antenna apparatus of this invention. アンテナ素子への給電方法を示したアンテナ素子給電構成図。The antenna element electric power feeding block diagram which showed the electric power feeding method to an antenna element. 本発明によるアンテナ装置の斜視図。The perspective view of the antenna device by this invention. 本発明のアンテナ装置のＦ／Ｂ比を示す特性図。The characteristic view which shows F / B ratio of the antenna apparatus of this invention. 本発明のアンテナ装置の実装の構成を示す実装構成図。The mounting block diagram which shows the structure of mounting of the antenna apparatus of this invention.

符号の説明Explanation of symbols

１０ 接地板
２０ アンテナ素子
２５ アレイアンテナ
３０ 保持機構
４０ 給電部
５０ 給電回路
６０ 反射器
７０ レドーム
１００ アンテナ装置 DESCRIPTION OF SYMBOLS 10 Ground plate 20 Antenna element 25 Array antenna 30 Holding mechanism 40 Feed part 50 Feed circuit 60 Reflector 70 Radome 100 Antenna apparatus

Claims (8)

短辺と長辺とからなる矩形状の接地板の一方の面上に、複数のアンテナ素子を配列して構成されたアレイアンテナと、
断面が円弧状の略半筒形形状でなり、当該断面の弧に相当する互いに平行な線形端部間の幅が前記短辺よりも長く形成された導体材を含む反射器とを備え、
前記接地板の他方の面が前記反射器の凹側内壁面に対向し、且つ、当該接地板が前記反射器の各前記線形端部と同一平面又はほぼ同一平面に位置するように前記アレイアンテナを配置したことを特徴とするアンテナ装置。 An array antenna configured by arranging a plurality of antenna elements on one surface of a rectangular ground plate composed of a short side and a long side;
A cross section having a substantially semi-cylindrical shape having an arc shape, and a reflector including a conductor material formed such that the width between linear end portions corresponding to the arc of the cross section is longer than the short side, and
The array antenna so that the other surface of the ground plate faces the concave inner wall surface of the reflector, and the ground plate is located on the same plane or substantially the same plane as each linear end of the reflector. An antenna device characterized by comprising: 前記反射器が円筒の主軸を含む面で切断した円筒側面で構成されることを特徴とする請求項１に記載のアンテナ装置。   The antenna device according to claim 1, wherein the reflector is configured by a cylindrical side surface cut by a plane including a main axis of the cylinder. 前記アンテナ装置の使用波長をλとしたとき、前記反射器の前記線形端部間の幅をほぼ２λとし、前記接地板の前記短辺の長さをほぼ0.5λ〜1.5λとすることを特徴とする請求項１又は２に記載のアンテナ装置。   When the wavelength used by the antenna device is λ, the width between the linear ends of the reflector is approximately 2λ, and the length of the short side of the ground plate is approximately 0.5λ to 1.5λ. The antenna device according to claim 1 or 2. 前記反射器は、金属板、金属網又は金属を被覆した誘電体で構成されることを特徴とする請求項1乃至３のいずれか１項に記載のアンテナ装置。   The antenna device according to any one of claims 1 to 3, wherein the reflector is made of a metal plate, a metal net, or a dielectric coated with metal. 前記アレイアンテナのみが樹脂性のレドーム内に収容されたことを特徴とする請求項1乃至４のいずれか１項に記載のアンテナ装置。   5. The antenna device according to claim 1, wherein only the array antenna is housed in a resinous radome. 前記アレイアンテナと前記反射器とが共に樹脂性のレドーム内に収容されたことを特徴とする請求項1乃至４のいずれか１項に記載のアンテナ装置。   5. The antenna device according to claim 1, wherein the array antenna and the reflector are both housed in a resinous radome. 前記反射器が前記レドーム内側に金属を被覆して構成されることを特徴とする請求項６に記載のアンテナ装置。   The antenna device according to claim 6, wherein the reflector is configured by covering a metal inside the radome. 前記反射器が前記レドームの内側にエッチング形成された金属網で構成されることを特徴とする請求項６に記載のアンテナ装置。   The antenna apparatus according to claim 6, wherein the reflector is formed of a metal net formed by etching inside the radome.
JP2006346328A 2006-12-22 2006-12-22 Antenna device Pending JP2008160433A (en)

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JP2006346328A JP2008160433A (en) 2006-12-22 2006-12-22 Antenna device
KR1020070048143A KR20080059012A (en) 2006-12-22 2007-05-17 Antenna device
US11/962,951 US20080169994A1 (en) 2006-12-22 2007-12-21 Antenna device
EP07123990A EP1936737A1 (en) 2006-12-22 2007-12-21 Antenna device
CNA2007101597734A CN101207238A (en) 2006-12-22 2007-12-21 Antenna device

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Cited By (2)

* Cited by examiner, † Cited by third party
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KR101099915B1 (en) * 2009-10-27 2011-12-28 엘에스산전 주식회사 Reader based on rfid
JP2014007537A (en) * 2012-06-25 2014-01-16 Ntt Docomo Inc Antenna device of wireless base station

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CN104037507B (en) * 2014-06-20 2017-07-28 京信通信系统（中国）有限公司 Exhaust-pipe-shaped embellished antenna
CN106654565A (en) * 2015-12-20 2017-05-10 中国电子科技集团公司第二十研究所 Integrated ultra wide band bias parabolic cylindrical surface array antenna based on MIMO system phased array
CN105609922A (en) * 2015-12-30 2016-05-25 成都维普特科技有限公司 Wireless base station antenna apparatus used for lamp post placement
EP3537537B1 (en) * 2018-03-07 2023-11-22 Nokia Solutions and Networks Oy A reflector antenna arrangement
CN113644454A (en) * 2021-06-30 2021-11-12 南京信息工程大学 X-waveband microstrip planar array antenna

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Publication number Priority date Publication date Assignee Title
KR101099915B1 (en) * 2009-10-27 2011-12-28 엘에스산전 주식회사 Reader based on rfid
US8451125B2 (en) 2009-10-27 2013-05-28 Ls Industrial Systems Co., Ltd. Reader based on RFID
EP2320349B1 (en) * 2009-10-27 2014-05-21 LS Industrial Systems Co., Ltd RFID reader
JP2014007537A (en) * 2012-06-25 2014-01-16 Ntt Docomo Inc Antenna device of wireless base station

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