JPH02189008A - Circularly polarized wave antenna system - Google Patents
Circularly polarized wave antenna systemInfo
- Publication number
- JPH02189008A JPH02189008A JP783089A JP783089A JPH02189008A JP H02189008 A JPH02189008 A JP H02189008A JP 783089 A JP783089 A JP 783089A JP 783089 A JP783089 A JP 783089A JP H02189008 A JPH02189008 A JP H02189008A
- Authority
- JP
- Japan
- Prior art keywords
- flat plate
- antenna
- circularly polarized
- power
- antenna device
- 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.)
- Pending
Links
- 238000003780 insertion Methods 0.000 claims abstract description 15
- 230000037431 insertion Effects 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims description 39
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 239000003989 dielectric material Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 230000000644 propagated effect Effects 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 10
- 238000004891 communication Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0012—Radial guide fed arrays
-
- 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
- H01Q21/067—Two dimensional planar arrays using endfire radiating aerial units transverse to the plane of the array
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、円偏波を利用するレーダや衛星通信用等の円
偏波アンテナ装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a circularly polarized antenna device for use in radar, satellite communication, etc., which utilizes circularly polarized waves.
（発明の概要）
本発明は、レーダや衛星通信用等の円偏波アンテナ装置
であって、電波の波長に比べて間隔の狭い平行金属平板
の一方の面に１個もしくは複数個の円偏波素子アンテナ
を設け、装置の奥行き寸法の低減を図り、小形で高感度
の装置を実現したものである。(Summary of the Invention) The present invention is a circularly polarized antenna device for radar, satellite communication, etc., in which one or more circularly polarized antennas are arranged on one surface of parallel metal flat plates whose spacing is narrower than the wavelength of radio waves. A wave element antenna is provided to reduce the depth of the device, resulting in a compact and highly sensitive device.
（従来の技術）
レーダアンテナ装置や衛星通信用アンテナ装置では、高
い感度（電力利得）が要求され、しかも設置場所に余裕
の無い場合には小形のものが望まれる。(Prior Art) A radar antenna device or a satellite communication antenna device is required to have high sensitivity (power gain), and if there is limited space for installation, a small size is desired.
第１０図乃至第１２図は円偏波アンテナ装置の従来例を
それぞれ示すものである。ここで、第１０図の第１従来
例は、電波が給電される方形導波管１の前面に複数個の
ヘリカルアンテナ２を導波管内部に結合するように配列
した導波管配列ヘリカルアンテナアレイである。また、
第１１図の第２従米例は、第１０図の導波管配列ヘリカ
ルアンテナアレイ３を多段式に配列した円偏波アンテナ
装置であり、各導波管配列ヘリカルアンテナアレイ３に
はそれぞれ減衰器４及び移相器５を介して電波を給電す
る構成となっている。第１２図の第３従来例は、反射１
１６の焦点に一次放射器７を配置したパラボラ形アンテ
ナ装置である。いずれの従来例も円偏波の電波を送信及
び受信できるものである。10 to 12 respectively show conventional examples of circularly polarized antenna devices. Here, the first conventional example shown in FIG. 10 is a waveguide array helical antenna in which a plurality of helical antennas 2 are arranged in front of a rectangular waveguide 1 to which radio waves are fed so as to be coupled inside the waveguide. It is an array. Also,
The second example shown in FIG. 11 is a circularly polarized antenna device in which the waveguide helical antenna array 3 shown in FIG. 4 and a phase shifter 5 to feed radio waves. The third conventional example in FIG.
This is a parabolic antenna device in which a primary radiator 7 is placed at a focal point of 16. Both conventional examples can transmit and receive circularly polarized radio waves.
（発明が解決しようとする課題）
ところで、第１０図の第１従来例においては利得が少な
く、利得を上げるために第１１図のように多段式に導波
管配列ヘリカルアンテナアレイ３を配列すると構造が大
形となり、給電が複雑となる欠点が生じる。また、第１
２図の第３従米例においては、−次放射器７が反射鏡６
より突出して占有空間を増加させる欠点がある。(Problem to be Solved by the Invention) By the way, in the first conventional example shown in FIG. 10, the gain is small, and in order to increase the gain, if the waveguide array helical antenna array 3 is arranged in a multi-stage manner as shown in FIG. The disadvantage is that the structure is large and the power supply is complicated. Also, the first
In the third example shown in Figure 2, the -order radiator 7 is the reflector 6.
The drawback is that it takes up more space.
本発明の目的は、設計が簡易で、奥行きが小さく、補遺
が小形にして高感度の円偏波アンテナ装置を提供するこ
とにある。An object of the present invention is to provide a highly sensitive circularly polarized antenna device that is simple in design, has a small depth, and has a small addendum.
（課題を解決するための手段）
上記目的を達成するためｔこ、本発明は、電波の波長に
比べて間隔の狭い平行金属平板の第１の平板の中央より
給電された電力が、第２の平板にあけられた１個以上の
小さな穴を通して分岐され、この分岐電力が１個以上の
円偏波素子アンテナを励振する構成としている。(Means for Solving the Problems) In order to achieve the above object, the present invention provides that power supplied from the center of a first flat plate of parallel metal flat plates having a narrow interval compared to the wavelength of radio waves is The branched power is branched through one or more small holes drilled in a flat plate, and this branched power excites one or more circularly polarized wave element antennas.
（作用）
本発明の円偏波アンテナ装置においては、１個以上の小
さな穴を形成した平行金属平板が、当該穴に給電用挿入
部が挿通された円偏波素子アンテナに対して電波を分岐
する手段として働き、減衰器や移相器等の手段は不要で
あり、設計が容易で構造も簡単となる。また、平行金属
平板の厚みは小さく、素子アンテナの突出も小さくでき
、平面的な構造であるから、奥行き寸法が小さく、占有
空間を小さくできる。(Function) In the circularly polarized antenna device of the present invention, the parallel metal plate in which one or more small holes are formed branches radio waves to the circularly polarized element antenna in which the feeding insertion part is inserted into the hole. It works as a means to do this, does not require means such as an attenuator or a phase shifter, and is easy to design and have a simple structure. Furthermore, the thickness of the parallel metal flat plate is small, the protrusion of the element antenna can be made small, and since the structure is planar, the depth dimension is small and the occupied space can be made small.
（実施例）
以下、本発明に係る円偏波アンテナ装置の実施例を図面
に従って説明する。(Example) Hereinafter, an example of a circularly polarized antenna device according to the present invention will be described with reference to the drawings.
第１図及び第２図は本発明の第１実施例を示す。1 and 2 show a first embodiment of the invention.
これらの図において、１０はｆｊＳｌの円形金属平板、
１１は１２の円形金属平板であり、これらにより送受（
ａ電波の波長に比べて間隔の狭い平行金属平板が構成さ
れる。そして、平板１０．１１の外周縁を短絡、密閉す
る如く円形金属リング１２が取り付けられ、これらによ
り内部空間を有する偏平な円筒体が構成されることにな
る。In these figures, 10 is a circular metal plate of fjSl,
11 is 12 circular metal plates, which transmit and receive (
A Parallel metal flat plates are constructed whose spacing is narrower than the wavelength of the radio waves. Then, a circular metal ring 12 is attached so as to short-circuit and seal the outer peripheral edge of the flat plate 10.11, thereby forming a flat cylindrical body having an internal space.
第１の円形金属平板１０の中央には中央給電用穴１３が
形成され、第２の円形金属平板１１には多数の小さな穴
１４が形成されている。また、第２の平板１１の内面中
央には金属テーパー錐状整合素子１５（横断面が円形で
、好ましくはテーパーが末広がりになっているもの）が
接続、固定されており、中央給電用穴１３に端部が嵌め
られた給電用同軸線路１６の芯［１７の延長部分が晟金
属テーパー錐状整合索子１５の頂点に接続されている。A central power feeding hole 13 is formed in the center of the first circular flat metal plate 10, and a large number of small holes 14 are formed in the second circular flat metal plate 11. Further, a metal tapered conical matching element 15 (having a circular cross section and preferably a tapered end) is connected and fixed to the center of the inner surface of the second flat plate 11. The extended portion of the core 17 of the power feeding coaxial line 16 whose end is fitted is connected to the apex of the metal tapered conical matching cord 15.
同軸線路１６の外側導体１８はｆ５１の平板Ｌｏｔ：接
続されている。The outer conductor 18 of the coaxial line 16 is connected to a flat plate Lot: f51.
円偏波素子テンテナとしては第３図に示すヘリカルアン
テナ２０が使用され、ヘリカル（螺旋形状）を構成する
導線の末端部に形成された直線状の給電用挿入部２１を
、前記小さな穴１４に嵌合した誘電体２２に挿通するこ
とによって支持される。A helical antenna 20 shown in FIG. 3 is used as the circularly polarized wave element tentenna, and a linear power feeding insertion part 21 formed at the end of the conductor forming the helical (spiral shape) is inserted into the small hole 14. It is supported by being inserted through the fitted dielectric 22.
前記円偏波発生用のヘリカルアンテナ２０のアンテナ利
得や周波数帯は、ヘリカルピッチ角、ヘリカル円周、ヘ
リカル巻数を適宜選択して自由に設定することができる
。また、多数のヘリカルアンテナ２０の平行金属平板に
対する配置は、例えば給電点に対して同心円上に配置す
る、換言すれば多数の小さな穴１４を前記第２の円形金
属平板１１の同心円上に形成することなどが考えられる
。The antenna gain and frequency band of the circularly polarized wave generating helical antenna 20 can be freely set by appropriately selecting the helical pitch angle, helical circumference, and helical winding number. Further, the arrangement of the large number of helical antennas 20 on the parallel metal flat plate is, for example, arranged concentrically with respect to the feeding point, in other words, a large number of small holes 14 are formed on the concentric circle of the second circular metal flat plate 11. There are many things that can be considered.
なお、用途に応じてスパイラル状、基盤目状等の種々の
配置が採用できる。Note that various arrangements such as a spiral shape, a base pattern, etc. can be adopted depending on the purpose.
なお、第２図のように、前記円形金属リング１２の内側
にはリング状に残留電力吸収のための電波吸収体２３が
配設されている。As shown in FIG. 2, a radio wave absorber 23 for absorbing residual power is disposed in a ring shape inside the circular metal ring 12.
以上の第１実施例の構成におい−６同軸線路１６より供
給された給電電力は、平板１０．１１の平行金属平版の
内部空間を半径方向に進行するにつれて逐次ヘリカルア
ンテナ２０の給電用挿入部２１に結合吸収され、小さな
穴１４を通って平板１１の外側に抜は出してヘリカルア
ンテナ２０を励振する。そして、給電電力が平行金属平
板の終端、すなわち外縁部に到達したときは実質的に零
になる。もし残留電力が存在しても電波吸収体２３で吸
収され、給電方向に向かう反射電力は無いようになって
いる。In the configuration of the first embodiment described above, the feeding power supplied from the -6 coaxial line 16 is sequentially transmitted to the feeding insertion portion 20 of the helical antenna 20 as it travels in the radial direction through the inner space of the parallel metal flat plate of the flat plate 10.11. It is coupled and absorbed by the air, and is extracted to the outside of the flat plate 11 through the small hole 14 to excite the helical antenna 20. Then, when the supplied power reaches the end of the parallel metal flat plate, that is, the outer edge, it becomes substantially zero. Even if residual power exists, it is absorbed by the radio wave absorber 23, so that there is no reflected power toward the power feeding direction.
以上の第１実施例のｖＩ戒によれば、平行＝に属平板内
の給電電力をヘリカルアンテナ２０の給電用挿入部２１
を介して逐次放射電力に変換でき、しかもヘリカルアン
テナを平板１１上に複数個配列したことにより放射ビー
ムを狭くできるのでアンテナ利得を上げることができる
。また、進行波形の電流を素子アンテナとしてのヘリカ
ルアンテナ２０上に分布させて用いているので、周波数
帯域が広帯域である。さらに、給電に際して滅装器や移
相器は不要で構造が簡単である。According to the vI precept of the first embodiment above, the feeding power in the flat plate belonging to the parallel =
Moreover, by arranging a plurality of helical antennas on the flat plate 11, the radiation beam can be narrowed, and the antenna gain can be increased. Further, since the traveling waveform current is distributed on the helical antenna 20 as an element antenna, the frequency band is wide. Furthermore, the structure is simple, with no need for a sterilizer or a phase shifter when supplying power.
なお、平行金属平板の径が充分大きく、外縁部に到達し
たときの残留電力を零にできるのであれば、電波吸収体
は省略可能である。Note that the radio wave absorber can be omitted if the diameter of the parallel metal flat plate is sufficiently large and the residual power when reaching the outer edge can be made zero.
ｆｊＳ４図は本発明の第２実施例であって、素子アンテ
ナとしてのヘリカルアンテナ２０を平行金属平板に対し
て取り付は支持する構造を工夫している。この場合、第
２の円形金属平板１１に形成された小さな穴１４には７
ランジ付き誘電体２２Ａが嵌合固定され、該誘電体２２
Ａの中心にヘリカルアンテナ２０の給電用挿入部２１が
挿通、支持されている。なお、その他の構造は前述の第
１実施例と同様である。Fig. fjS4 shows a second embodiment of the present invention, in which a helical antenna 20 as an element antenna is mounted and supported on a parallel metal plate. In this case, the small hole 14 formed in the second circular flat metal plate 11 has seven holes.
A dielectric body 22A with a flange is fitted and fixed, and the dielectric body 22A is fitted and fixed.
A feeding insertion portion 21 of the helical antenna 20 is inserted and supported at the center of A. Note that the other structures are the same as those of the first embodiment described above.
この第４図の第２実施例によれば、誘電体２２Ａの７ラ
ンジ２５によって、ヘリカルアンテナ２０のヘリカル部
分が平板１１に接触してしまう事故の発生を防止でき、
また各ヘリカルアンテナ２０のヘリカル部分が常に７ラ
ンノ２５の厚みＴだけ平板１１より離間して取り付けら
れることになって、ヘリカルアンテナ２０を多数取り付
ける場合でも取り付は条件を一定にできる利点がある。According to the second embodiment shown in FIG. 4, the seven flange 25 of the dielectric 22A can prevent the helical portion of the helical antenna 20 from coming into contact with the flat plate 11.
Further, the helical portion of each helical antenna 20 is always mounted apart from the flat plate 11 by the thickness T of 7 runs 25, which has the advantage that even when a large number of helical antennas 20 are mounted, the mounting conditions can be kept constant.
第５図及びｔ５６図は本発明のｆｆ１３実施例であって
、素子アンテナとしてスパイラルアンテナ３０を使用し
ている。このスパイラルアンテナ３０は１本の導線をス
パイラル形状（平面の渦巻き状）に形成したものであり
、導線末端部に直線状の給電用挿入部３１を一体的に形
成している。ここで、スパイラルアンテナ３０の第２の
円形金属平板１１に対しての取り付けは、平板１１の小
さな穴１４に代められた誘電体３２に、給電用挿入部３
１を挿通することによって行うが、誘電体３２の平板１
１より外側に突出する部分は金属円筒３３で囲んで同軸
線路と同様の構造にしておく。これは、スパイラル（渦
巻きアンテナパターン）に到達する前に給電用挿入部３
１の途中より電波が放射されるのを防止するためである
。5 and t56 show an FF13 embodiment of the present invention, in which a spiral antenna 30 is used as the element antenna. This spiral antenna 30 is formed by forming a single conducting wire into a spiral shape (a planar spiral shape), and a linear power feeding insertion portion 31 is integrally formed at the end of the conducting wire. Here, when attaching the spiral antenna 30 to the second circular flat metal plate 11, the feeding insertion part 3 is inserted into the dielectric body 32, which is replaced by the small hole 14 in the flat plate 11.
This is done by inserting the flat plate 1 of the dielectric 32.
The portion projecting outward from 1 is surrounded by a metal cylinder 33 to have a structure similar to that of a coaxial line. This means that the feeding insert 3
This is to prevent radio waves from being emitted from the middle of 1.
スパイラルアンテナ３０のスパイラルの外周Ｃは、使用
周波数から計算される波長の１倍以上とし、２倍を越え
ない。また、スパイラルと平板１１の表面までの距離Ｈ
は使用周波数から計算される波長の１／２倍以下とし、
通常１／４倍にとるのが放射ビーム成形の点で良い。The spiral outer circumference C of the spiral antenna 30 is at least one time the wavelength calculated from the frequency used, and does not exceed twice the wavelength. Also, the distance H between the spiral and the surface of the flat plate 11
shall be 1/2 or less of the wavelength calculated from the frequency used,
Normally, it is good to set it to 1/4 times in terms of radiation beam shaping.
なお、素子アンテナの構成以外は前述の１１実施例と同
様である。Note that the structure of this embodiment is the same as that of the eleventh embodiment described above except for the configuration of the element antenna.
上記第３実施例の場合、素子アンテナがスパイラルアン
テナ３０であるため、装置の奥行き寸法をさらに縮小し
て平面的なアンテナ装置を構成できる利点がある。また
、進行波形の電流を素子アンテナとしてのスパイラルア
ンテナ３０上に分布させて用いているので、周波数帯域
が広帯域である。In the case of the third embodiment, since the element antenna is the spiral antenna 30, there is an advantage that the depth dimension of the device can be further reduced to form a planar antenna device. Further, since the traveling waveform current is distributed on the spiral antenna 30 as an element antenna, the frequency band is wide.
第７図は本発明の第４実施例であって、素子アンテナと
してパッチ状アンテナ４０を使用している。このパッチ
状アンテナ４０は一肘の切欠講４２を形成した円形金属
板４１の切欠溝中心線から４５°ずれた所で、かつ裏面
中心から半径の１／３＠れｔこ点に直線状導線の給電用
挿入部４３を接続一体化したものである。ここで、パッ
チ状アンテナ４０のｔｊＩＪ２の円形金属平板１１への
取り付けは、第８図のように平板１１の小さな穴１４に
はめられた誘電体４４に給電用挿入部４３を挿通、支持
することによって行なわれる。但し、切欠溝付円形金属
板４１と平板１１の表面までの距離Ｈは使用周波数から
計算される波長の１／１０倍以下とする。FIG. 7 shows a fourth embodiment of the present invention, in which a patch antenna 40 is used as the element antenna. This patch-like antenna 40 is located at a place 45 degrees off from the center line of the notch groove of a circular metal plate 41 forming a one-elbow notch 42, and at a point 1/3 of the radius from the center of the back surface with a straight conductor wire. The power feeding insertion portion 43 is connected and integrated. Here, the patch antenna 40 is attached to the circular metal flat plate 11 of the tjIJ2 by inserting and supporting the feeding insertion part 43 through the dielectric 44 fitted into the small hole 14 of the flat plate 11 as shown in FIG. It is carried out by However, the distance H between the notched grooved circular metal plate 41 and the surface of the flat plate 11 is set to 1/10 times or less of the wavelength calculated from the frequency used.
なお、素子アンテナの構成以外は萌述の第１実施例と同
様である。Note that the structure of this embodiment is the same as that of Moe's first embodiment except for the configuration of the element antenna.
上記第４実施例の場合、素子アンテナがパッチ状アンテ
ナ４０であるため、素子アンテナ自体の構造が簡単にな
り、また装置の奥行き寸法を縮小して平面的なアンテナ
装置を構成できる。但し、周波数帯域は狭くなる。In the case of the fourth embodiment, since the element antenna is a patch antenna 40, the structure of the element antenna itself is simplified, and the depth of the device can be reduced to form a planar antenna device. However, the frequency band becomes narrower.
＠９図は本発明の第５実施例であって、素子アンテナと
して絶縁基板５０の片面上に厚膜印刷技術、薄膜技術、
エツチング等の技術によりスパイラル又はパッチ状のア
ンテナ導体パターン５１を形成したものを使用している
。アンテナ導体パターン５１には基板５０を貫通する直
線状導線の給電用挿入部５２が接続一体化され、註給電
用挿入部５２は平板１１の小さな穴１４に嵌められた誘
電体５３に挿通、支持される。但し、誘電体５３の平板
１１より外側に突出する部分は金属円筒５４で囲んで同
Ｍ線路と同様の構造にしておく。これは、スパイラル又
はバッチ状のアンテナ導体パターン５１に到達面に給電
用挿入部５２の途中より電波が放射されるのを防止する
ためである。Figure @9 shows a fifth embodiment of the present invention, in which thick film printing technology, thin film technology,
A spiral or patch-shaped antenna conductor pattern 51 is formed using a technique such as etching. The antenna conductor pattern 51 is connected and integrated with a feeding insertion portion 52 of a straight conductor that penetrates the substrate 50. Note: The feeding insertion portion 52 is inserted into and supported by a dielectric 53 fitted into a small hole 14 in the flat plate 11. be done. However, the portion of the dielectric 53 that protrudes outward from the flat plate 11 is surrounded by a metal cylinder 54 to have the same structure as the M line. This is to prevent radio waves from being radiated from the middle of the feeding insertion section 52 to the surface reaching the spiral or batch-shaped antenna conductor pattern 51.
この第９図のｆ５５実施例によれば、絶縁基板上にアン
テナ導体パターン５１を形成すれば良く、素子アンテナ
の個数が多い場合にも同一絶縁基板上に必要な数のアン
テナ導体パターンを形成すれば良いから、量産性の向上
を図ることができる。According to the f55 embodiment shown in FIG. 9, it is sufficient to form the antenna conductor pattern 51 on the insulating substrate, and even when there are many element antennas, the required number of antenna conductor patterns can be formed on the same insulating substrate. Since it is possible to improve mass productivity, it is possible to improve mass productivity.
（発明の効果）
以上説明したように、本発明の円偏波アンテナ装置は、
平行金属平板内の電力を円偏波素子アンテナの給電用挿
入部を介して逐次放射電力に変換でき、しかも素子アン
テナを平行金属平板の一面上に複数個配列することによ
り放射ビームを狭くできるのでアンテナ利得を上げるこ
とがで慇るという効果があり、また構造が簡単であるの
で、レーダ、衛星通信用アンテナに好適であると言える
。(Effects of the Invention) As explained above, the circularly polarized antenna device of the present invention has the following features:
The power in the parallel metal flat plate can be sequentially converted into radiated power via the feeding insertion part of the circularly polarized element antenna, and the radiation beam can be narrowed by arranging multiple element antennas on one side of the parallel metal flat plate. Since it has the effect of increasing the antenna gain and has a simple structure, it can be said to be suitable for radar and satellite communication antennas.
＃ＩＪ１図は本発明に係る円偏波アンテナ装置の第１実
施例を示す平面図、第２図はｆｊＳ１図のＩＩ−ＩＩ断
面図、１３図は第１実施例における素子アンテナの取り
付は構造部分を示す断面図、第４図は本発明の第２実施
例を示す断面図、ｔｊＳＳ図は本発明の第３実施例を示
す平面図、第６図は同断面図、第７図は本発明のｌ＠４
実施例を示す平面図、！＠８図は同断面図、第９図は本
発明の第５実施例を示す断面図、第１０図は１従米例の
斜視図、第１１図は第２従米例の斜視図、第１２図はｆ
５３従来例の側面図である。
１０・・・第１の円形金属平板、１１・・・第２の円形
金属平板、１２・・・円形金属リング、１３・・・中央
給電用穴、１４・・・小さな穴、１５・・・金属テーパ
ー錐状整合素子、１６・・・同軸線路、２０・・・ヘリ
カルアンテナ、２１，３１，４３．５２・・・給電用挿
入部、２２．２２Ａ、３２．４４．５３・・・誘電体、
２３・・・電波吸収体、３０・・・スパイラルアンテナ
、４０・・・パッチ状アンテナ、５０・・・絶縁基板、
５１・・・アンテナ導体パターン。#IJ1 is a plan view showing the first embodiment of the circularly polarized antenna device according to the present invention, FIG. 2 is a sectional view taken along line II-II of fjS1, and FIG. 4 is a sectional view showing a second embodiment of the present invention, tjSS is a plan view showing a third embodiment of the present invention, FIG. 6 is a sectional view of the same, and FIG. 7 is a sectional view showing a structural part. l@4 of the present invention
A plan view showing an example! @ Figure 8 is a sectional view of the same, Figure 9 is a sectional view showing the fifth embodiment of the present invention, Figure 10 is a perspective view of the first example, Figure 11 is a perspective view of the second example, and Figure 12. is f
53 is a side view of the conventional example. DESCRIPTION OF SYMBOLS 10... First circular metal flat plate, 11... Second circular metal flat plate, 12... Circular metal ring, 13... Center power feeding hole, 14... Small hole, 15... Metal tapered conical matching element, 16... Coaxial line, 20... Helical antenna, 21, 31, 43.52... Power feeding insertion part, 22.22A, 32.44.53... Dielectric material ,
23... Radio wave absorber, 30... Spiral antenna, 40... Patch-like antenna, 50... Insulating substrate,
51...Antenna conductor pattern.
Claims (6)
１の平板の中央より給電された電力が、第２の平板にあ
けられた１個以上の小さな穴を通して分岐され、この分
岐電力が１個以上の円偏波素子アンテナを励振すること
を特徴とする円偏波アンテナ装置。(1) Power fed from the center of the first parallel metal flat plate with a narrow interval compared to the wavelength of the radio wave is branched through one or more small holes drilled in the second flat plate, and this branched power is What is claimed is: 1. A circularly polarized wave antenna device, characterized in that a circularly polarized wave antenna device excites one or more circularly polarized wave element antennas.
外周縁を短絡する如く金属リングが設けられている請求
項１記載の円偏波アンテナ装置。(2) The circularly polarized antenna device according to claim 1, wherein a metal ring is provided so as to short-circuit the outer peripheral edges of the first and second parallel metal plates.
体が設けられている請求項１又は２記載の円偏波アンテ
ナ装置。(3) The circularly polarized antenna device according to claim 1 or 2, wherein a radio wave absorber is provided on the outer periphery of the internal space of the parallel metal flat plate.
テーパー錐状整合素子を接続し、該金属テーパー錐状整
合素子に給電用線路の先端を接続した請求項１記載の円
偏波アンテナ装置。(4) A circularly polarized wave according to claim 1, wherein a metal tapered conical matching element is connected to the center of the inner surface of the second flat plate of the parallel metal flat plates, and a tip of a power supply line is connected to the metal tapered conical matching element. antenna device.
ルアンテナもしくはパッチ状アンテナである請求項１記
載の円偏波アンテナ装置。(5) The circularly polarized antenna device according to claim 1, wherein the element antenna is a helical antenna, a spiral antenna, or a patch antenna.
部を支える誘電体が設けられている請求項１記載の円偏
波アンテナ装置。(6) The circularly polarized antenna device according to claim 1, wherein the small hole is provided with a dielectric material that supports a feeding insertion portion of the element antenna.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP783089A JPH02189008A (en) | 1989-01-18 | 1989-01-18 | Circularly polarized wave antenna system |
| DE19893927141 DE3927141C2 (en) | 1989-01-18 | 1989-08-17 | Circularly polarized antenna system |
| GB8918771A GB2227369B (en) | 1989-01-18 | 1989-08-17 | A circular polarization antenna system |
| CA 608729 CA1331055C (en) | 1989-01-18 | 1989-08-18 | Circular polarization antenna system |
| FR8911059A FR2641904B1 (en) | 1989-01-18 | 1989-08-21 | ANTENNA DEVICE FOR CIRCULAR POLARIZATION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP783089A JPH02189008A (en) | 1989-01-18 | 1989-01-18 | Circularly polarized wave antenna system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02189008A true JPH02189008A (en) | 1990-07-25 |
Family
ID=11676514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP783089A Pending JPH02189008A (en) | 1989-01-18 | 1989-01-18 | Circularly polarized wave antenna system |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH02189008A (en) |
| CA (1) | CA1331055C (en) |
| DE (1) | DE3927141C2 (en) |
| FR (1) | FR2641904B1 (en) |
| GB (1) | GB2227369B (en) |
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| JPH0438113U (en) * | 1990-07-27 | 1992-03-31 | ||
| JPH04154307A (en) * | 1990-10-18 | 1992-05-27 | Yagi Antenna Co Ltd | Plane antenna |
| JPH04358406A (en) * | 1991-06-05 | 1992-12-11 | Yagi Antenna Co Ltd | Plane antenna |
| JPH04360306A (en) * | 1991-06-06 | 1992-12-14 | Yagi Antenna Co Ltd | Plane antenna |
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| JPS60199201A (en) * | 1984-03-24 | 1985-10-08 | Arimura Giken Kk | Circular waveguide line |
| JPS62194708A (en) * | 1986-02-20 | 1987-08-27 | Sharp Corp | Feeding structure for helical antenna |
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| GB1234751A (en) * | 1966-11-30 | 1971-06-09 | Gen Electric Co Ltd | Improvements in or relating to aerials |
| US3852761A (en) * | 1973-04-23 | 1974-12-03 | Rca Corp | Lens fed antenna array system |
| FR2242784B1 (en) * | 1973-08-31 | 1977-05-13 | Thomson Csf | |
| FR2456399A1 (en) * | 1979-05-08 | 1980-12-05 | Thomson Csf | DISK-TYPE MICROWAVE NETWORK ANTENNA WITH ITS FEEDING DEVICE, AND APPLICATION TO ECARTOMETRY RADARS |
| US4647940A (en) * | 1982-09-27 | 1987-03-03 | Rogers Corporation | Parallel plate waveguide antenna |
| GB8317938D0 (en) * | 1983-07-01 | 1983-08-03 | Emi Ltd | Antenna |
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- 1989-01-18 JP JP783089A patent/JPH02189008A/en active Pending
- 1989-08-17 DE DE19893927141 patent/DE3927141C2/en not_active Expired - Fee Related
- 1989-08-17 GB GB8918771A patent/GB2227369B/en not_active Expired - Fee Related
- 1989-08-18 CA CA 608729 patent/CA1331055C/en not_active Expired - Fee Related
- 1989-08-21 FR FR8911059A patent/FR2641904B1/en not_active Expired - Fee Related
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|---|---|---|---|---|
| DE1287656B (en) * | 1969-01-23 | |||
| JPS5787603A (en) * | 1980-11-21 | 1982-06-01 | Naohisa Goto | Circular polarized wave plane array antenna |
| JPS60199201A (en) * | 1984-03-24 | 1985-10-08 | Arimura Giken Kk | Circular waveguide line |
| JPS62194708A (en) * | 1986-02-20 | 1987-08-27 | Sharp Corp | Feeding structure for helical antenna |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0438113U (en) * | 1990-07-27 | 1992-03-31 | ||
| JPH04154307A (en) * | 1990-10-18 | 1992-05-27 | Yagi Antenna Co Ltd | Plane antenna |
| JPH04358406A (en) * | 1991-06-05 | 1992-12-11 | Yagi Antenna Co Ltd | Plane antenna |
| JPH04360306A (en) * | 1991-06-06 | 1992-12-14 | Yagi Antenna Co Ltd | Plane antenna |
| US5453755A (en) * | 1992-01-23 | 1995-09-26 | Kabushiki Kaisha Yokowo | Circularly-polarized-wave flat antenna |
| US11128053B2 (en) | 2017-05-19 | 2021-09-21 | Mitsubishi Electric Corporation | Array antenna device |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1331055C (en) | 1994-07-26 |
| GB8918771D0 (en) | 1989-09-27 |
| FR2641904A1 (en) | 1990-07-20 |
| GB2227369B (en) | 1993-05-05 |
| GB2227369A (en) | 1990-07-25 |
| DE3927141A1 (en) | 1990-07-19 |
| FR2641904B1 (en) | 1992-11-20 |
| DE3927141C2 (en) | 1993-12-23 |
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