JP2547364B2 - Wireless direction finding antenna device - Google Patents
Wireless direction finding antenna deviceInfo
- Publication number
- JP2547364B2 JP2547364B2 JP4143114A JP14311492A JP2547364B2 JP 2547364 B2 JP2547364 B2 JP 2547364B2 JP 4143114 A JP4143114 A JP 4143114A JP 14311492 A JP14311492 A JP 14311492A JP 2547364 B2 JP2547364 B2 JP 2547364B2
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- JP
- Japan
- Prior art keywords
- antenna
- pair
- plate
- radial line
- ground plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
【０００１】[0001]
【産業上の利用分野】複数の板状アンテナを用いて電波
の到来方向を探知する無線方向探知用アンテナ装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio direction detecting antenna device for detecting the arrival direction of a radio wave using a plurality of plate antennas.
【０００２】[0002]
【従来の技術】探知すべき電波の到来方向が配置される
面と平行な平面をもつ板状アンテナによって得られる出
力中の方位成分により電波の到来方向を探知する構成
が、特開昭６０−１４７６６、特開昭５９−１０８４０
４などに開示されている。2. Description of the Related Art A structure for detecting the arrival direction of a radio wave by an azimuth component in the output obtained by a plate antenna having a plane parallel to the plane on which the arrival direction of the radio wave to be detected is arranged is disclosed in Japanese Patent Laid-Open No. 14766, JP-A-59-10840.
4, etc.
【０００３】上記の従来技術による構成では、複数の直
交配置された板状アンテナの各頂点を信号抽出と終端と
に交互に切換える構成または、複数の板状アンテナを上
下に重ねて直交配置したものを上記と同様の切換えを行
うようにした構成になっている。In the above-mentioned configuration according to the prior art, a plurality of orthogonally arranged plate antennas are alternately switched between signal extraction and termination, or a plurality of plate antennas are vertically stacked and orthogonally arranged. Is configured to be switched in the same manner as above.
【０００４】[0004]
【発明が解決しようとする課題】一般に、無線方向探知
機における測定誤差のうち、他の擾乱物体の影響をうけ
ることに起因するサイト誤差は、アンテナの配置外径が
大きいほど少なくなり、周波数が低い場合には共軸形の
複合ループアンテナ、周波数が高い場合には循環切換位
相変調方式によるアンテナなどのように、各アンテナの
配置間隔を大きくしてアンテナの配置外径を大きくとる
ことにより、各アンテナが擾乱物体からの輻射波を受け
る距離になるべく大きな差を設けることが望ましいこと
が、昭和３２年８月コロナ社発行「無線方位測定機」の
１８０〜１８２頁などに開示されている。Generally, among the measurement errors in the radio direction finder, the site error due to the influence of other disturbing objects decreases as the antenna outer diameter increases, and the frequency becomes smaller. When the frequency is high, a coaxial loop antenna, and when the frequency is high, such as an antenna using the cyclic switching phase modulation method, the spacing between the antennas is increased to increase the outer diameter of the antenna. It is disclosed on pages 180 to 182 of "Radio Direction Measuring Machine" issued by Corona Co., Ltd. in August 1957 that it is desirable to provide a large difference in the distance that each antenna receives a radiation wave from a disturbing object.
【０００５】したがって、上記のような従来のもので
は、超短波帯用として構成した場合、板状アンテナの長
さ自体が受信波長以上の長さにできないので、配置外径
が探知する電波の波長以上に拡げることができないた
め、このサイト誤差を低減するのに限界があるという不
都合があった。Therefore, in the conventional antenna as described above, when it is constructed for the ultra-high frequency band, the length of the plate-shaped antenna itself cannot be longer than the reception wavelength, so that the outer diameter of the arrangement is longer than the wavelength of the radio wave to be detected. However, there is a limit to reducing this site error because there is a limit.
【０００６】[0006]
【課題を解決するための手段】この発明は、上記のよう
な３つ以上の板状アンテナにより構成されるアンテナ装
置であり、このアンテナ装置の外径よりも大きい接地面
の上に各板状アンテナを接地面と間隔をおいて配置し、
同時に各板状アンテナをこのアンテナ装置の中心から見
た方向を異ならせて配置した、電波の到来方向にもとづ
く方位成分をもつ探知信号が、このアンテナ装置の各板
状アンテナの外側端の出力を所定の順序で切換えて得ら
れるようにした無線方向探知用アンテナ装置において、
上記各板状アンテナの平面を菱形に形成すると同時に、
各板状アンテナの最もこのアンテナ装置の中心に近い端
部に接地面に対する終端抵抗を設けるアンテナ手段と、
各板状アンテナの菱形の長手方向の各頂点を結ぶ線をこ
のアンテナ装置の中心から放射状に方向を異ならせて各
板状アンテナ装置を配置すると同時に、各端部をこの中
心から外側に離れた点に配置し、さらに隣接する各板状
アンテナを互いに接触することなく離して配置するアン
テナ配置手段とを設けることにより上記の課題を解決し
得るようにしたものである。The present invention is an antenna device composed of three or more plate-shaped antennas as described above, and each plate-shaped device is placed on a ground plane having a larger outer diameter than the antenna device. Place the antenna at a distance from the ground plane,
At the same time, the plate antennas are arranged in different directions when viewed from the center of the antenna device, and the detection signal having the azimuth component based on the arrival direction of the radio wave outputs the output at the outer end of each plate antenna of the antenna device. In the wireless direction finding antenna device, which is obtained by switching in a predetermined order,
At the same time as forming the plane of each plate antenna into a diamond shape,
Antenna means for providing a terminating resistance to the ground plane at the end of each plate antenna closest to the center of the antenna device,
Arrange the plate antenna devices by radiating the lines connecting the vertices of the rhombus of each plate antenna in the longitudinal direction from the center of the antenna device at the same time, and at the same time, arranging each end part from the center to the outside. The above-mentioned problems can be solved by providing antenna disposing means for disposing adjacent plate-shaped antennas apart from each other without making contact with each other at the points.
【０００７】[0007]
【実施例】２５０ＭＨＺ〜５００ＭＨＺの方向探知用ア
ンテナ装置における実施例を図面により説明する。DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a direction finding antenna device of 250 MHZ to 500 MHZ will be described with reference to the drawings.
【０００８】図において、アンテナ１１〜１４は９０°
間隔の放射状線ａ・ｂ・ｃ・ｄ 上に設けられた板状ア
ンテナで、各放射状線に対して線対称の形状をもつ導体
板、例えば、四角形のアルミ板をその対角線が放射状線
と一致するように配置したものである。In the figure, the antennas 11 to 14 have a 90 ° angle.
A plate antenna provided on the radial lines a, b, c, and d at intervals, and a conductor plate having a line-symmetrical shape with respect to each radial line, for example, a square aluminum plate, whose diagonal line matches the radial line. It is arranged to do.
【０００９】終端抵抗２１〜２４は後記の終端インピー
ダンスに相当する抵抗器で、各アンテナ１１〜１４の内
側の頂角点、つまり、終端点２５〜２８に例えば図７
（ａ）のように同軸ケーブル用コネクターの受側の芯線
側を端子として使用し、シールド側を後記の接地基板１
０に接続し、コネクターの栓側芯線とシールド側との間
に無誘導の抵抗器を接続したもの、つまり、同軸型無反
射終端器で後記の接地基板１０との間に電気的に接続す
る。The terminating resistors 21 to 24 are resistors corresponding to terminating impedances, which will be described later. For example, FIG.
As shown in (a), the core wire side of the receiving side of the coaxial cable connector is used as a terminal, and the shield side is the ground substrate 1 described later.
0, and a non-inductive resistor is connected between the plug-side core wire of the connector and the shield side, that is, an electrical connection is made between the coaxial type non-reflective terminator and the ground substrate 10 described later. .
【００１０】信号抽出端子６１〜６４は、各アンテナ１
１〜１４の外側の頂角点、つまり、抽出点に設けた端子
であり、例えば、同軸ケーブル用コネクターの受側を端
子として使用したもので、図７（ｂ）のように芯線側を
抽出点に接続しシールド側を後記の接地基板１０に接続
し、栓側に同軸ケーブル１０１〜１０４を接続したもの
である。この信号抽出端子６１〜６４の信号出力は信号
抽出用ケーブル１０１〜１０４によって切換部５にある
各切換回路４１〜４４に導かれている。The signal extraction terminals 61 to 64 are connected to the respective antennas 1
1 to 14 are terminals provided at the outer apex points, that is, the extraction points. For example, the receiving side of the coaxial cable connector is used as the terminal, and the core side is extracted as shown in FIG. 7 (b) . The connection is made to a point, the shield side is connected to a ground substrate 10 described below, and the coaxial cables 101 to 104 are connected to the plug side. The signal outputs from the signal extraction terminals 61 to 64 are guided to the switching circuits 41 to 44 in the switching section 5 by the signal extraction cables 101 to 104.
【００１１】接地基板１０は到来電波に対して各アンテ
ナ１１〜１４よりみた場合電気的に実質的に接地されて
いると見做される接地面を形成する導体板で、例えば、
アンテナの配置外径Ｄの２〜３倍程度の大きさの外径を
もつアルミニューム板であり、地上または空中に適宜の
方法で支持されている。The grounding board 10 is a conductor plate forming a grounding surface which is considered to be electrically substantially grounded when viewed from the antennas 11 to 14 with respect to incoming radio waves.
It is an aluminum plate having an outer diameter about 2 to 3 times the outer diameter D of the antenna, and is supported on the ground or in the air by an appropriate method.
【００１２】各アンテナ１１〜１４が接地基板１０上に
支持される高さｈと、終端抵抗２１〜２４の値γとの関
係は、各アンテナ１１〜１４と接地基板１０との間の波
動インピーダンスの終端点におけるインピーダンス終端
抵抗の値γになるように高さｈを調整してあり、例え
ば、各アンテナ１１〜１４の各片が１２センチメート
ル、アンテナとアンテナの間隔ｓが５センチメートル、
終端抵抗２１〜２４の値γが５０オーム、信号抽出用ケ
ーブル１０１〜１０４のインピーダンスが５０オームの
場合、高さｈは２〜３センチメートルになるように信号
抽出端子６１〜６４部分と終端点２５〜２８部分の高さ
を設定している。この場合、アンテナの配置外径Ｄは約
４１センチメートルであり、接地基板１０の外径は約１
００センチメートルにしてある。The relationship between the height h at which the antennas 11 to 14 are supported on the ground substrate 10 and the value γ of the terminating resistors 21 to 24 is determined by the wave impedance between the antennas 11 to 14 and the ground substrate 10. The height h is adjusted so as to be the value γ of the impedance termination resistance at the termination point of, for example, each piece of each of the antennas 11 to 14 is 12 cm, and the distance s between the antennas is 5 cm.
When the value γ of the terminating resistors 21 to 24 is 50 ohms and the impedance of the signal extracting cables 101 to 104 is 50 ohms, the height h is 2 to 3 centimeters and the signal extracting terminals 61 to 64 and the termination points. The height of 25 to 28 parts is set. In this case, the outer diameter D of the antenna is about 41 cm, and the outer diameter of the ground substrate 10 is about 1 cm.
It is set to 00 centimeters.
【００１３】切換部５は、後記の各切換え回路４１〜４
４とその切換信号９Ａ〜９Ｄを発生する切換信号発生回
路９などを収納したシールド箱体であり例えばアルミニ
ウム板で作られたキャビネットで接地基板１０のアンテ
ナ１１〜１４と反対側面に接続固定してある。The switching unit 5 includes switching circuits 41 to 4 described later.
4 and the switching signal generating circuit 9 for generating the switching signals 9A to 9D, and the like, which is a shield box body, and is connected and fixed to the side opposite to the antennas 11 to 14 of the ground substrate 10 in a cabinet made of, for example, an aluminum plate. is there.
【００１４】切換回路４１〜４４は、それぞれ各個に設
けたダイオード７と抵抗８、および共通に設けたチョー
クコイル１１０とによって構成されたダイオードスイッ
チング回路であり、後記の切換信号発生回路９から与え
られる切換信号９Ａ〜９Ｄを各抵抗８とチョークコイル
１１０間に加えることにより、ケーブル１０１〜１０４
によって、各ダイオード７の入力側に与えられている各
アンテナ１１〜１４の受信出力を定められた順序、例え
ば、アンテナ１１・１２・１３・１４の順にくり返し
て、順次にスイッチングしてとり出し、共通の出力線１
１１に出力して探知信号１１１Ａを得るようにしたもの
である。The switching circuits 41 to 44 are diode switching circuits each composed of a diode 7 and a resistor 8 which are individually provided, and a choke coil 110 which is commonly provided, and are provided from a switching signal generating circuit 9 described later. By adding the switching signals 9A to 9D between the resistors 8 and the choke coil 110, the cables 101 to 104 are connected.
By this, the reception output of each antenna 11 to 14 given to the input side of each diode 7 is repeated in a predetermined order, for example, the order of the antennas 11, 12, 13, and 14, and the switching is sequentially taken out. Common output line 1
11 to output the detection signal 111A.
【００１５】以上のような構成において、各アンテナ１
１〜１４の指向特性は図４（ａ）に示すようなカージオ
イド型の単向指向性になる。したがってアンテナ１１〜
１４の各指向特性を一面にまとめて表わせば、図４
（ｂ）のような指向特性１１Ａ〜１４Ａになり、切換信
号９Ａ〜９Ｄを図４（ｃ）のように、順次に位相をずら
せた４相の矩形波信号にすることによって、同図の探知
信号１１１Ａのような電波の到来方向がαにあるアンテ
ナ１１が最大の出力１１ａとなり、その反対方向にある
アンテナ１３が最小の出力１３ａとなるような方位成分
をもつ探知信号１１１Ａを得ることができ、例えば、図
４（ｃ）の信号をフーリエ展開することにより、その基
本波の位相点によって方向を検出するなどの方法で方向
探知ができる。In the above configuration, each antenna 1
The directional characteristics 1 to 14 are cardioid type unidirectional directivity as shown in FIG. Therefore, the antennas 11 to 11
If the directivity characteristics of 14 are collectively shown on one side, as shown in FIG.
The directional characteristics 11A to 14A as shown in FIG. 4B are obtained, and the switching signals 9A to 9D are converted into four-phase rectangular wave signals whose phases are sequentially shifted as shown in FIG. It is possible to obtain the detection signal 111A having an azimuth component such that the antenna 11 in which the arrival direction of the radio wave is α, such as the signal 111A, has the maximum output 11a and the antenna 13 in the opposite direction has the minimum output 13a. For example, by carrying out Fourier expansion of the signal of FIG. 4C, the direction can be detected by a method of detecting the direction by the phase point of the fundamental wave.
【００１６】また、この発明では、上記のような構成の
アンテナ装置において、特に、アンテナ１１〜１４の平
面の形状を、図８（ａ）のように、アンテナ１１〜１４
の平面を菱形に形成するとともに、この菱形の長手方向
の各頂点を結ぶ線が放射状線ａ〜ｄ上になるように配置
するように構成しているものである。Further, according to the present invention, in the antenna device having the above-mentioned structure, the antennas 11 to 14 have a plane shape as shown in FIG.
Is formed into a rhombus, and the lines connecting the vertices of the rhombus in the longitudinal direction are arranged on the radial lines a to d.
【００１７】 さらに、同様の構成において、アンテナ
１１〜１４の平面の菱形を、図８（ａ）のように、外側
の角度と内側の角度とを異ならせた非対称菱形様四辺形
に変形構成し、さらには、図８（ｂ）のように、各アン
テナ１１〜１４の平面を高周波絶縁材の支柱３１〜３４
で支持して、信号抽出点６１〜６４の高さｈ１と終端点
２５〜２８の高さｈ２とを異ならせてアンテナの平面を
傾斜することにより、この傾斜を変えて、アンテナ１１
〜１４の外側と内側でのインピーダンスの異なりを是正
して、インビーダンス整合を確保し得るようにしてあ
る。その際に、例えば、内側（終端点側）の低いインピ
ーダンスを外側（信号抽出点側）の高いインピーダンス
に整合させるには、図８（ａ）（ｂ）に例示されている
ように、内側における板状アンテナ１１〜１４と接地面
１０との間の間隔ｈ ２ を外側におけるそれ（ｈ １ ）に対
して相対的に小さくし、内側における板状アンテナ１１
〜１４の対向隅部を挟んで該アンテナの隣辺により形成
される角度θ ２ を外側におけるそれ（θ １ ）に対して相
対的に大きくするのが好適であることは、説明を要しな
いであろう。 Further, in the same configuration, the diamonds on the plane of the antennas 11 to 14 are changed to the outside as shown in FIG.
Of angle and asymmetric diamond-like quadrilateral was different from the inside of the angle
In addition, as shown in FIG. 8B, the planes of the antennas 11 to 14 are formed by supporting columns 31 to 34 of a high frequency insulating material.
And the height h1 of the signal extraction points 61 to 64 is made different from the height h2 of the terminal points 25 to 28 to incline the plane of the antenna, thereby changing the inclination, and the antenna 11
The impedance difference between the outer side and the inner side of -14 is corrected to ensure impedance matching. At that time, for example, a low impedance on the inner side (end point side)
High impedance outside (outside of signal extraction point)
8A and 8B to match
So that the plate-like antennas 11 to 14 and the ground plane inside
The distance h 2 between 10 and that of the outside (h 1 )
To make it relatively small, and the plate-shaped antenna 11 on the inner side
Formed by the adjacent sides of the antenna with the opposite corners of 14 sandwiched therebetween.
Angle θ 2 relative to that on the outside (θ 1 )
It is not necessary to explain that it is preferable to make it relatively large.
Would be
【００１８】なお、各アンテナ１１〜１４の信号抽出点
６１〜６４と終端点２５〜２８とを逆にした構成でも上
記と同様な探知信号を得ることができるが、各アンテナ
１１〜１４の指向性が形成される方向に他のアンテナが
配置された形態になるため、これらが影響して指向特性
が乱されるので、方向探知用アンテナ装置としては不向
きである。Although the detection signals similar to those described above can be obtained even if the signal extraction points 61 to 64 of the antennas 11 to 14 and the terminal points 25 to 28 are reversed, the directions of the antennas 11 to 14 are directed. Since other antennas are arranged in the direction in which the characteristics are formed, and these influence the directional characteristics, they are unsuitable as a direction finding antenna device.
【００１９】〔変実施例〕 この発明は次のような変形実施が可能である。 （１）アンテナ１１〜１４の数は、図５のように、最少
の場合３個とし、配置外径効果・探知感度・方向精度な
どを向上する場合にはなるべく多数設けた方がよい。[Modified Embodiment] The present invention can be modified as follows. (1) As shown in FIG. 5, the number of antennas 11 to 14 should be three in the minimum case, and it is better to provide as many as possible in order to improve the placement outer diameter effect, detection sensitivity, direction accuracy, and the like.
【００２０】（２）アンテナ１１〜１４を配置する方向
の放射状線ａ・ｂ・ｃの角度間隔が、装置の構造上均等
にできない場合は、適宜の不均等角度間隔にして方向探
知のための角度算出をこれに対応したものにする。(2) If the angular intervals of the radial lines a, b, and c in the direction in which the antennas 11 to 14 are arranged cannot be made uniform due to the structure of the device, an appropriate unequal angular interval is used to detect the direction. The angle calculation is adapted to this.
【００２１】（３）アンテナ１１〜１４の放射状線上に
配置する位置、つまり、アンテナの配置中心よりの距離
を構造上の都合により均等にできない場合は、図６のよ
うに、不均等にして方向探知のための角度算出をこれに
対応したものにする。(3) When the positions on the radial lines of the antennas 11 to 14, that is, the distances from the center of the antennas cannot be made equal due to structural reasons, the directions are made unequal as shown in FIG. The angle calculation for detection is made to correspond to this.
【００２２】（４）終端抵抗２１〜２４を図９のように
各アンテナ１１〜１４の終端点２５〜２８と接地基板１
０との間に接続する。(4) The terminating resistors 21 to 24 are connected to the terminating points 25 to 28 of the antennas 11 to 14 and the ground substrate 1 as shown in FIG.
Connect with 0.
【００２３】（５）各アンテナ１１〜１４の信号抽出点
６１〜６４と終端点２５〜２８とを逆にした構成でも上
記と同様な探知信号を得るように構成する。なお、この
構成の場合、各アンテナ１１〜１４の指向性が形成され
る方向に他のアンテナが配置された形態になるため、こ
れらが影響して指向特性が乱される場合もあるので、こ
の影響に対する対策を講ずる必要がある。(5) Even if the signal extraction points 61 to 64 of the antennas 11 to 14 and the terminal points 25 to 28 are reversed, the same detection signal as described above is obtained. In addition, in the case of this configuration, since the other antennas are arranged in the direction in which the directivity of each of the antennas 11 to 14 is formed, there is a case where these influence and disturb the directivity characteristics. It is necessary to take measures against the impact.
【００２４】[0024]
【発明の効果】以上のように、この発明によれば、板状
アンテナを間隔配置することによってアンテナの配置外
径Ｄを大きくすることができるので、超短波帯のような
波長が短い電波に対してもサイト誤差の少い無線方向探
知用アンテナ装置を提供することができる特長がある。As described above, according to the present invention, by disposing the plate-shaped antennas at intervals, the outer diameter D of the antennas can be increased. However, there is a feature that it is possible to provide an antenna device for wireless direction finding with a small site error.
【００２５】上記の実施例では２５０ＭＨＺ〜５００Ｍ
ＨＺの場合について述べたが、１５０ＭＨＺ〜５００Ｍ
ＨＺであっても方向探知機としての最低限度の信号対雑
音比と指向特性の前後比を得られる。In the above embodiment, 250 MHZ to 500 M
The case of HZ has been described, but 150 MHZ to 500 M
Even in the case of HZ, it is possible to obtain the minimum signal-to-noise ratio and the front-back ratio of directional characteristics as a direction finder.
【００２６】また、各アンテナ１１〜１４の各辺を約２
５センチメートル、アンテナの間隔を約１０センチメー
トルにして３０ＭＨＺ〜２００ＭＨＺ用のアンテナ装置
を得ることもできるなど目的の周波数帯に合わせたもの
が得られる。Further, each side of each of the antennas 11 to 14 has about 2
It is possible to obtain an antenna device adapted to a target frequency band, such as an antenna device for 30 MHZ to 200 MHZ with a distance of 5 cm and an antenna interval of about 10 cm.
【００２７】アンテナの感度を上げ、方向誤差を少なく
するには、配置の外径Ｄに対してアンテナ１１〜１４の
数をなるべく多くした方がよいが、隣接するアンテナを
余り近付けると、アンテナ間の相互干渉によって方向探
知に支障を招くことになる。In order to increase the sensitivity of the antennas and reduce the direction error, it is preferable to increase the number of the antennas 11 to 14 with respect to the outer diameter D of the arrangement. Mutual interference with each other will hinder direction finding.
【００２８】しかし、この発明によれば、各アンテナ１
１〜１４を菱形に形成してあるため、同一の配置外径で
アンテナの配置数を多くした場合でも、隣接するアンテ
ナ間の相互干渉を少なくすることができるので、感度と
方向探知精度のよい無線方向探知用アンテナ装置を提供
し得るなどの特長がある。However, according to the present invention, each antenna 1
Since 1 to 14 are formed in a rhombus shape, mutual interference between adjacent antennas can be reduced even when the number of antennas arranged with the same arrangement outer diameter is increased, resulting in good sensitivity and direction finding accuracy. It has the feature that it can provide an antenna device for wireless direction finding.
図面は実施例を示し、各図の内容は次のとおりである。 The drawings show examples, and the contents of each drawing are as follows.
【図１】平面図1 is a plan view
【図２】縦断面図[Fig. 2] Vertical sectional view
【図３】回路構成図FIG. 3 is a circuit configuration diagram.
【図４】（ａ）・（ｂ）は指向性パターン図、（ｃ）は
各部信号波形図4A and 4B are directivity pattern diagrams, and FIG. 4C is a signal waveform diagram of each part.
【図５】アンテナ配置平面図FIG. 5 is an antenna arrangement plan view
【図６】アンテナ配置平面図FIG. 6 is a plan view of the antenna arrangement.
【図７】要部側面図[Fig. 7] Side view of main parts
【図８】（ａ）はアンテナ形状平面図、（ｂ）は要部断
面図FIG. 8A is a plan view of the antenna shape, and FIG.
【図９】要部断面図FIG. 9 is a sectional view of a main part
１１〜１４ アンテナ ２１〜２４ 終端抵抗 ２５〜２８ 終端点 ３１〜３４ 支柱 ４１〜４４ 切換回路 ５ 切換部 ６１〜６４ 信号抽出点 ７ ダイオード ８ 抵抗 ９ 切換信号発生回路 １０ 接地基板 １１０ チョークコイル １１１ 出力線 １０１〜１０４ 信号抽出用ケーブル １１Ａ〜１４Ａ アンテナ指向特性 １１ａ〜１４ａ 各アンテナの出力 ９Ａ〜９Ｄ 切換信号 ｈ アンテナの接地基板からの高さ ｈ１ ンテナの接地基板からの高さ ｈ２ アンテナの接地基板からの高さ ａ〜ｄ 放射状線 Ｄ 配置外径 ｓ アンテナ間隔 α 電波の到来方向・ θ1 〜θ3 放射状線の角度間隔 11-14 Antenna 21-24 Termination resistance 25-28 Termination point 31-34 Strut 41-44 Switching circuit 5 Switching part 61-64 Signal extraction point 7 Diode 8 Resistance 9 Switching signal generation circuit 10 Grounding board 110 Choke coil 111 Output line 101-104 Signal extraction cable 11A-14A Antenna directivity 11a-14a Output of each antenna 9A-9D Switching signal h Height from antenna grounding board h1 Height from antenna grounding board h2 Antenna from grounding board Height a to d Radial line D Outer diameter s Antenna spacing α Direction of arrival of radio waves · θ1 to θ3 Angular spacing of radial lines
Claims (4)
れるアンテナ装置であり、前記アンテナ装置の外径より
も大きい接地面の上方に各前記板状アンテナを前記接地
面に対して間隔をおいて平面的に支持し、各前記板状ア
ンテナどうしを接触させずに離隔して、前記アンテナ装
置の中心から見た方向を異ならせて配置し、前記アンテ
ナ装置の各前記板状アンテナからの出力信号を所定の順
序で切り換えて、電波の到来方向に基づく方位成分を有
する探知信号を生成するようにした無線方向探知用アン
テナ装置であって、 ａ．前記アンテナ装置の中心から異なる方向に延びる放
射状線上沿いに１対の対向隅部が位置し、２対の対向隅
部の各対において、各隅部を挟んで隣辺により形成され
る角度が相等しい菱形様四辺形の形状を有する板状アン
テナ手段 ｂ．前記板状アンテナ手段の前記放射状線上沿いの１対
の前記対向隅部の一方端に配置され、前記接地面に対し
て終端抵抗を形成する終端点手段 ｃ．前記板状アンテナ手段の前記放射状線上沿いの１対
の前記対向隅部の他方端に配置され、前記板状アンテナ
手段から出力信号を抽出する信号抽出点手段を備えてい
ることを特徴とする無線方向探知用アンテナ装置。1. A an antenna device configured to include three or more plate-shaped antenna, spacing each said plate-like antenna above the ground plane larger than the outer diameter of the antenna device relative to the ground plane Are supported in a plane, and each of the plate-shaped
Spaced apart without contacting the container with each other, wherein at different directions viewed from the center of the antenna device is provided, by switching the output signals from each of said plate-shaped antenna of the antenna device in a predetermined order, the radio Has direction component based on direction of arrival
A wireless direction finding antenna device configured to generate a detecting signal for a. An antenna that extends in different directions from the center of the antenna device
One pair of opposite corners are located along the radial line, and two pairs of opposite corners
Formed by adjacent sides of each pair of parts, with each corner in between
Plate-shaped ann with the shape of a rhombus-like quadrilateral with equal angles
Tena means b. A pair along the radial line of the plate antenna means
Is placed at one end of the opposite corner of the
End point means for forming a terminating resistance by means of c. A pair along the radial line of the plate antenna means
Is disposed at the other end of the opposite corner of the plate antenna.
An antenna device for wireless direction finding, comprising signal extraction point means for extracting an output signal from the means .
沿いの１対の前記対向隅部の一方端と前記接地面との間
の間隔と、前記放射状線上沿いの１対の前記対向隅部の
他方端と前記接地面との間の間隔とが異なり、前記板状
アンテナ手段が前記接地面の上方に傾斜状態で支持され
ている請求項１記載の無線方向探知用アンテナ装置。2. On the radial line of the plate antenna means
Between the one end of the previous SL opposing corners of the pair along with the ground plane
And a pair of opposite corners along the radial line
The distance between the other end and the ground plane is different,
The antenna means is supported above the ground plane in an inclined state.
And has claim 1 radio direction finding antenna system according.
する１対の前記対向隅部以外の１対の前記対向隅部にお
いて、各隅部を挟んで隣辺により形成される角度が相等
しく、前記放射状線上沿いに位置する１対の前記対向隅
部において、各隅部を挟んで隣辺により形成される角度
が互いに異なる非対称菱形様四辺形の形状を有する板状
アンテナ手段である請求項１記載の無線方向探知用アン
テナ装置。 3. The plate-shaped antenna means is located along the radial line of the two pairs of the facing corners.
To the pair of opposite corners other than the pair of opposite corners.
And the angle formed by the adjacent sides across each corner is equal.
A pair of said opposite corners located along said radial line
Angle formed by adjacent sides of each corner
With asymmetric diamond-shaped quadrilateral shapes
The wireless direction finding antenna according to claim 1, which is an antenna means.
Tena device.
沿いの１対の前記対向隅部の一方端と前記接地面との間
の間隔と、前記放射状線上沿いの１対の 前記対向隅部の
他方端と前記接地面との間の間隔とが異なり、前記板状
アンテナ手段が前記接地面の上方に傾斜状態で支持さ
れ、１対の前記対向隅部の一方端において、前記対向隅
部を挟んで隣辺により形成される角度と、１対の前記対
向隅部の他方端において、前記対向隅部を挟んで隣辺に
より形成される角度とが異なる請求項３記載の無線方向
探知用アンテナ装置。 4. The radial line of the plate antenna means
Between one end of the pair of opposite corners along the ground plane
And a pair of opposite corners along the radial line
The distance between the other end and the ground plane is different,
The antenna means is supported above the ground plane in an inclined state.
At one end of the pair of facing corners,
An angle formed by adjacent sides with a part sandwiched between them, and one pair of said pair
At the other end of the facing corner, on the adjacent side across the facing corner
The wireless direction according to claim 3, wherein the angle formed by
Antenna device for detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4143114A JP2547364B2 (en) | 1992-04-18 | 1992-04-18 | Wireless direction finding antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4143114A JP2547364B2 (en) | 1992-04-18 | 1992-04-18 | Wireless direction finding antenna device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22777886A Division JPS6382002A (en) | 1986-09-25 | 1986-09-25 | Antenna system for radio direction finding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06186314A JPH06186314A (en) | 1994-07-08 |
| JP2547364B2 true JP2547364B2 (en) | 1996-10-23 |
Family
ID=15331243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4143114A Expired - Fee Related JP2547364B2 (en) | 1992-04-18 | 1992-04-18 | Wireless direction finding antenna device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2547364B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007104254A (en) * | 2005-10-04 | 2007-04-19 | Konica Minolta Holdings Inc | Camera unit |
| KR100842087B1 (en) * | 2006-12-28 | 2008-06-30 | 삼성전자주식회사 | Array antenna system |
-
1992
- 1992-04-18 JP JP4143114A patent/JP2547364B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06186314A (en) | 1994-07-08 |
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|---|---|---|---|
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