JPH0311928Y2 - - Google Patents
Info
- Publication number
- JPH0311928Y2 JPH0311928Y2 JP1983069121U JP6912183U JPH0311928Y2 JP H0311928 Y2 JPH0311928 Y2 JP H0311928Y2 JP 1983069121 U JP1983069121 U JP 1983069121U JP 6912183 U JP6912183 U JP 6912183U JP H0311928 Y2 JPH0311928 Y2 JP H0311928Y2
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- dome
- foam
- directional antenna
- covered
- 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.)
- Expired
Links
- 230000001681 protective effect Effects 0.000 claims description 21
- 239000006260 foam Substances 0.000 claims description 18
- 230000001012 protector Effects 0.000 claims description 13
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 239000006261 foam material Substances 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 8
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、指向性アンテナ、つまり、送波また
は受波ビームをもつアンテナを毎秒数十回転以上
の高速度で回転するアンテナ装置に適したアンテ
ナ装置に関するものである。[Detailed description of the invention] [Field of industrial application] The present invention is suitable for an antenna device that rotates a directional antenna, that is, an antenna with a transmitting or receiving beam at a high speed of several tens of revolutions per second or more. The present invention relates to an antenna device.
この種の装置としては、保護ドームの内部にス
ロツトアレイアンテナなどの指向性アンテナを裸
体のまま収納して回転させることにより、積雪や
風圧などからアンテナ体を保護する構造のものが
周知である。
A well-known device of this type is one that protects the antenna body from snow accumulation, wind pressure, etc. by storing a directional antenna such as a slotted array antenna naked inside a protective dome and rotating it. .
また、リフレクタ付きの指向性アンテナの水平
面内における外形を円形に囲つて平たい円筒状に
形成することにより風圧による抵抗モーメントを
低減する構造のものが実公昭31−12814などに開
示されており、水平面方向を軸芯とする円筒状に
形成した誘電体の固体物または粉体物の中に指向
性アンテナを埋設してアンテナ素子間の分布定数
を増加させる構造のものが特開昭51−99955など
に開示されている。 In addition, a directional antenna with a reflector that has a structure in which the external shape in the horizontal plane is surrounded by a circle and formed into a flat cylindrical shape to reduce the resistance moment due to wind pressure is disclosed in Japanese Utility Model Publication No. 31-12814, etc. Japanese Patent Application Laid-Open No. 51-99955 has a structure in which a directional antenna is embedded in a solid or powdered dielectric object formed in a cylindrical shape with the direction as the axis to increase the distribution constant between antenna elements. has been disclosed.
指向性アンテナを高速で回転するものとして
は、例えば、方向探知機用アンテナなどに用いる
場合があり、毎秒数十回転以上の高速度で回転す
るアンテナ装置にしなければならない。
A directional antenna that rotates at high speed may be used, for example, as an antenna for a direction finder, and must be an antenna device that rotates at a high speed of several tens of revolutions per second or more.
こうした場合、耐風圧とともに耐遠心力という
課題があり、耐風圧の面では上記の保護ドームを
用いればよいが、耐遠心力の面では上記の誘電体
による分布定数の増加による小型化のみでは、重
量が重くなり過ぎて遠心力の平衡調整が困難にな
り、製造時のみではなく、経年変化による不平衡
を現場で調整しえなくなるなどの不都合が生ず
る。 In such a case, there is the issue of resistance to centrifugal force as well as wind pressure resistance.In terms of resistance to wind pressure, it is sufficient to use the above-mentioned protective dome, but in terms of resistance to centrifugal force, miniaturization alone by increasing the distribution constant using the dielectric material described above is not enough. The weight becomes too heavy, making it difficult to adjust the balance of centrifugal force, resulting in inconveniences such as the inability to adjust the unbalance not only during manufacturing but also due to aging at the site.
このため、こうした不都合のない簡便安価なも
のの提供が望まれているという課題がある。 Therefore, there is a problem in that it is desired to provide a simple and inexpensive product that does not have these inconveniences.
この考案は、上記のような
周囲と上面とを囲む保護ドームの底面側を閉じ
て形成されたドーム内に指向性アンテナを高速回
転するドーム型アンテナ装置において、
保護ドームの水平面内における断面の内面側を
円周形とし、保護ドームの内面に平行した形状の
外形をもつ発泡材の保護体により指向性アンテナ
の少なくとも前後部分を埋めて覆つた発泡体覆着
アンテナと、
この発泡体覆着アンテナを保護ドームの円周形
の軸芯方向を中心として回転させるための回転構
造と
を設けることによつて、上記の課題を解決し得る
ようにしたものである。
This invention is based on a dome-shaped antenna device in which a directional antenna is rotated at high speed within a dome formed by closing the bottom side of a protective dome that surrounds the periphery and the upper surface. A foam-covered antenna in which at least the front and rear portions of a directional antenna are buried and covered by a foam protector having a circumferential side and an outer shape parallel to the inner surface of a protective dome; and the foam-covered antenna. The above problem can be solved by providing a rotation structure for rotating the protective dome around the circumferential axis direction of the protective dome.
以下、図により実施例を説明する。 Examples will be described below with reference to figures.
第1図と第2図において、指向性のアンテナ1
は例えば八木アンテナまたはログペリオデツクア
ンテナで、目標とする周波数帯の電波にたいして
尖鋭な受波または送波のビームを持つている。 In Figures 1 and 2, a directional antenna 1
For example, it is a Yagi antenna or a log periodic antenna, which has a sharp receiving or transmitting beam for radio waves in the target frequency band.
第1図においては垂直導体よりなる八木アンテ
ナが例示してあるが、このアンテナに水平に配置
した導体を附加して、水平偏波の電波にたいして
も良好な受波または送波ビームを形成することが
できる。 Although Fig. 1 shows a Yagi antenna made of a vertical conductor, it is possible to add a horizontally arranged conductor to this antenna to form a good receiving or transmitting beam even for horizontally polarized radio waves. I can do it.
回転軸2は指向性のアンテナ1を保持し、この
アンテナの入出力の電圧をリード線8にとりだ
し、回転型の結合器9を介してリード線10に給
電する。 The rotating shaft 2 holds a directional antenna 1 , takes out the input/output voltage of this antenna to a lead wire 8 , and supplies power to a lead wire 10 via a rotary coupler 9 .
回転軸の軸受3は回転軸2を滑動状態にて保持
し、その下端の近くに減速器7が取付けてある。
回転型の結合器9は、第2図の例では回転軸2の
中間部につけてあるが、回転軸2の最下端につけ
ることもできる。 The rotating shaft bearing 3 holds the rotating shaft 2 in a sliding state, and a speed reducer 7 is attached near the lower end thereof.
Although the rotary coupler 9 is attached to the middle portion of the rotating shaft 2 in the example shown in FIG. 2, it can also be attached to the lowermost end of the rotating shaft 2.
モータ4はモータの給電線5に供給する電力に
て回転し、減速器6と7を介して回転軸2をほぼ
定速に回転する。 The motor 4 is rotated by electric power supplied to a power supply line 5 of the motor, and rotates the rotating shaft 2 at a substantially constant speed via decelerators 6 and 7.
減速器6と7は第2図においてオームギヤとホ
イールギヤが例示してあるが、ベルトとプーリに
よる減速器を使用することができる。 The speed reducers 6 and 7 are exemplified by ohmic gears and wheel gears in FIG. 2, but speed reducers using belts and pulleys may also be used.
回転型の結合器9は第2図にてわかるように、
回転軸2に固定してあつて回転軸2とともに回転
するコイルと、送波または受波装置に結合するた
めにリード線10に接続してある固定したコイル
よりなり、この回転型の結合器はアンテナ1とリ
ード線10のインピーダンス整合を行つている。 As can be seen in FIG. 2, the rotary coupler 9 is
This rotary coupler consists of a coil that is fixed to the rotating shaft 2 and rotates together with the rotating shaft 2, and a fixed coil that is connected to a lead wire 10 for coupling to a wave transmitting or receiving device. Impedance matching between the antenna 1 and the lead wire 10 is performed.
取付板11には軸受3、モータ4、リード線1
0を固定し、アンテナ1をモータ4によつて回転
することができるような強度がもたしてある。 The mounting plate 11 has a bearing 3, a motor 4, and a lead wire 1.
0 is fixed and the antenna 1 is strong enough to be rotated by a motor 4.
保護ドーム12は、指向性アンテナ1の周囲と
上面とを囲うもので、水平面内における断面が、
第1図のように、円周形をしており、底面側を取
付板11で閉じてドームを構成してある。 The protective dome 12 surrounds the periphery and upper surface of the directional antenna 1, and has a cross section in the horizontal plane.
As shown in FIG. 1, it has a circumferential shape, and the bottom side is closed with a mounting plate 11 to form a dome.
保護ドーム12は電波がこのドームを通過する
ときの損失が極めて少なく、かつ風雨雪などの周
囲環境に抵抗力がある材質を成形したドームで、
その水平面の断面がほぼ円形になるように平滑に
仕上げてあり、その下部は取付板11に止ネジ1
3にて固定してある。 The protective dome 12 is a dome made of a material that has extremely low loss when radio waves pass through the dome and is resistant to the surrounding environment such as wind, rain, and snow.
The cross section of the horizontal plane is finished smoothly so that it is almost circular, and the lower part is attached to the mounting plate 11 with a set screw 1.
It is fixed at 3.
保護ドーム12の材質は例えばガラス入フアイ
バが適当である。発泡材の保護体15は例えばス
チロール材のように電波が通過するときの損失が
極めて少なく、軽量でかつアンテナ1の間隙の部
分に充填することができる材質である。発泡材の
保護体15の外周は保護ドーム12の内面と並行
した形状で、できるだけ平滑に仕上げてあり、か
つ、回転軸2、アンテナ1、回転型の結合器9、
減速器6,7を総合した回転時の遠心力が平衡す
るように調整する。 A suitable material for the protective dome 12 is, for example, glass-filled fiber. The foam protector 15 is made of a material such as styrene material, which has extremely low loss when radio waves pass through it, is lightweight, and can be filled into the gap between the antenna 1. The outer periphery of the foam protector 15 is parallel to the inner surface of the protective dome 12, and is finished as smooth as possible.
Adjustment is made so that the centrifugal force during rotation of the speed reducers 6 and 7 is balanced.
すなわち、アンテナ1を高速回転させるときに
保護ドーム12の内面と発泡材の保護体15の外
周の間の抵抗をできるだけ減少し、かつ、高速回
転のときの遠心力が平衡するように調整し、仕上
げるのである。 That is, when the antenna 1 is rotated at high speed, the resistance between the inner surface of the protective dome 12 and the outer periphery of the foam protector 15 is reduced as much as possible, and the centrifugal force at the time of high speed rotation is adjusted so as to be balanced. Finish it.
発泡材の充填は、別に設けた治具にアンテナ1
を挿入し、位置ぎめを行い、発泡材の散逸を防止
するカバーなどをつけて行う。 To fill the foam material, place antenna 1 in a separate jig.
Insert the foam, position it, and attach a cover to prevent the foam from escaping.
なお、アンテナ1を含む回転部分の重量を軽減
することと、リード線8の部分の工作を容易にす
る目的で、発泡材の保護体15の内部に空洞14
を設けることができる。 Note that in order to reduce the weight of the rotating part including the antenna 1 and to facilitate the work of the lead wire 8, a cavity 14 is formed inside the foam protector 15.
can be provided.
以上の構成を要約すると、周囲と上面とを囲む
保護ドーム12の底面側を閉じて形成されたドー
ム内に指向性アンテナ1を高速回転するようにし
たドーム型アンテナ装置において、保護ドーム1
2の水平面内における断面の内面側を円周形と
し、保護ドーム12の内面に平行した形状の外形
をもつ発泡材の保護体15により指向性アンテナ
1の少なくとも前後部分を埋めて覆つた発泡体覆
着アンテナと、この発泡体覆着アンテナを上記の
保護ドーム12の円周形の軸芯方向を中心として
回転させるための回転構造とを設けるように構成
したものである。 To summarize the above configuration, in a dome-shaped antenna device in which the directional antenna 1 is rotated at high speed within a dome formed by closing the bottom side of a protective dome 12 that surrounds the periphery and the upper surface, the protective dome 1
At least the front and rear portions of the directional antenna 1 are filled and covered by a foam protector 15 whose inner surface side in the horizontal plane of the directional antenna 1 has a circumferential shape and whose outer shape is parallel to the inner surface of the protective dome 12. The antenna is configured to include a covered antenna and a rotation structure for rotating the foam covered antenna about the circumferential axis of the protective dome 12 described above.
本考案は、以上のように、発泡材の保護体15
によつて指向性アンテナ1の回転強度を軽量な構
造で補強したあるため、高速回転時の遠心力の平
衡調整が行いやすくなり、また、発泡材の保護体
15の外面とドーム12の内面とを平行にしてあ
るため、この間の空隙が一定しており高速回転時
にも内部に乱気流を生じさせて遠心力の平衡を崩
すようなことがなくなり、高速回転を円滑に行わ
せ得るようになる。
As described above, the present invention provides the foam protector 15.
Since the rotational strength of the directional antenna 1 is reinforced with a lightweight structure, it is easier to balance the centrifugal force during high-speed rotation, and the outer surface of the foam protector 15 and the inner surface of the dome 12 are Since they are parallel, the gap between them is constant, and even during high-speed rotation, there is no possibility of turbulence occurring inside and disrupting the balance of centrifugal force, allowing for smooth high-speed rotation.
このため、発泡材の保護体15でも指向性アン
テナ1の補強が十分に保て、さらには、発泡材の
保護体15なので軽量のため、高速回転用の回転
機構部分を軽便な構造で済ませられるので、装置
全体を軽便安価なものにして提供できるなどの特
長がある。 Therefore, even the foam protector 15 can sufficiently reinforce the directional antenna 1, and since the foam protector 15 is lightweight, the rotating mechanism for high-speed rotation can be constructed with a light structure. Therefore, it has the advantage that the entire device can be made lightweight and inexpensive.
第1図は本考案の要部横断面の上面図であり、
第2図のA−A断面を示す。第2図は本考案の要
部縦断面の側面図であり、第1図のB−B断面を
示す。
1……指向性のアンテナ、2……回転軸、3…
…回転軸の軸受、4……モータ、5……モータの
給電線、6……減速器、7……減速器、8……ア
ンテナのリード線、9……回転型の結合器、10
……結合器のリード線、11……取付板、12…
…保護ドーム、13……保護ドームの止ネジ、1
4……減量のための空洞、15……発泡材の保護
体、A……上面図のための断面線、B……側面図
のための断面線、16……保護カバー。
FIG. 1 is a cross-sectional top view of the main parts of the present invention.
A cross section taken along the line A-A in FIG. 2 is shown. FIG. 2 is a side view of a longitudinal section of the main part of the present invention, and shows the section BB in FIG. 1. 1... Directional antenna, 2... Rotation axis, 3...
...Rotating shaft bearing, 4...Motor, 5...Motor feed line, 6...Decelerator, 7...Decelerator, 8...Antenna lead wire, 9...Rotary type coupler, 10
...Coupler lead wire, 11...Mounting plate, 12...
...Protective dome, 13... Protective dome set screw, 1
4... Cavity for weight loss, 15... Foam protector, A... Section line for top view, B... Section line for side view, 16... Protective cover.
Claims (1)
じて形成されたドーム内に指向性アンテナを高
速回転するドーム型アンテナ装置(以下、装置
という)において、 a 前記保護ドームの水平面内における断面の
内面側を円周形とし、前記保護ドームの内面
に平行した形状の外形をもつ発泡材の保護体
により前記指向性アンテナの少なくとも前後
部分を埋めて覆つた発泡体覆着アンテナと、 b 前記発泡体覆着アンテナを前記円周形の軸
芯方向を中心として回転させるための回転構
造とを具備することを特徴とする装置。 2 実用新案登録請求の範囲第1項記載の装置で
あつて、前記発泡材の保護体をスチロールの発
泡材にしたもの。 3 実用新案登録請求の範囲第1項記載の装置で
あつて、前記指向性アンテナを八木アンテナに
したもの。 4 実用新案登録請求の範囲第1項記載の装置で
あつて、前記指向性アンテナをログペリオデツ
クアンテナにしたもの。[Claims for Utility Model Registration] 1. In a dome-shaped antenna device (hereinafter referred to as the device) in which a directional antenna is rotated at high speed within a dome formed by closing the bottom side of a protective dome surrounding the periphery and the top surface, a. A foam material whose inner surface side in a cross section in a horizontal plane of the protective dome is circular, and at least the front and rear portions of the directional antenna are buried and covered by a foam protector having an outer shape parallel to the inner surface of the protective dome. An apparatus comprising: a covered antenna; and b. a rotation structure for rotating the foam covered antenna about the circumferential axis direction. 2. The device according to claim 1 of the registered utility model, in which the foam protector is made of styrene foam. 3. The device according to claim 1 of the Utility Model Registration Claim, in which the directional antenna is a Yagi antenna. 4. Utility model registration The device according to claim 1, wherein the directional antenna is a log periodic antenna.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6912183U JPS59174707U (en) | 1983-05-11 | 1983-05-11 | dome antenna |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6912183U JPS59174707U (en) | 1983-05-11 | 1983-05-11 | dome antenna |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59174707U JPS59174707U (en) | 1984-11-21 |
JPH0311928Y2 true JPH0311928Y2 (en) | 1991-03-22 |
Family
ID=30199283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6912183U Granted JPS59174707U (en) | 1983-05-11 | 1983-05-11 | dome antenna |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59174707U (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0625050Y2 (en) * | 1984-12-20 | 1994-06-29 | 株式会社光電製作所 | Dome type rotating antenna device |
JP7144083B2 (en) * | 2021-02-05 | 2022-09-29 | 日本電業工作株式会社 | antenna device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5199955A (en) * | 1975-01-28 | 1976-09-03 | Plessey Handel Investment Ag | MUSENANTENAOSAKUSEISURUHOHO |
-
1983
- 1983-05-11 JP JP6912183U patent/JPS59174707U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5199955A (en) * | 1975-01-28 | 1976-09-03 | Plessey Handel Investment Ag | MUSENANTENAOSAKUSEISURUHOHO |
Also Published As
Publication number | Publication date |
---|---|
JPS59174707U (en) | 1984-11-21 |
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