JPH08288720A - Device for adjusting parabolic antenna - Google Patents
Device for adjusting parabolic antennaInfo
- Publication number
- JPH08288720A JPH08288720A JP8412895A JP8412895A JPH08288720A JP H08288720 A JPH08288720 A JP H08288720A JP 8412895 A JP8412895 A JP 8412895A JP 8412895 A JP8412895 A JP 8412895A JP H08288720 A JPH08288720 A JP H08288720A
- Authority
- JP
- Japan
- Prior art keywords
- support arm
- primary radiator
- antenna
- parabolic antenna
- adapter
- 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
Landscapes
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Support Of Aerials (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明はパラボラアンテナの調整
装置に係り、指向性をブロードにして粗調整し易くする
ものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parabolic antenna adjustment device, and more particularly to a device for broadening directivity to facilitate rough adjustment.
【0002】[0002]
【従来の技術】パラボラアンテナ(以降、アンテナと略
す)設置時の方向調整は、アンテナに付属されている説
明書等を参照し、設置場所における衛星のおおよその仰
角を調べ、アンテナの仰角を粗調整し、次いで方位角を
粗調整し、その後、仰角および方位角を交互に微調整し
て最良点を決定するという方法が一般的である。この方
法は、アンテナの設置に馴れている人の場合、あるいは
アンテナの径が小さく指向性がブロードであれば困難な
ことではないが、アンテナの設置の経験のない人の場
合、あるいはアンテナの径が大きい場合はアンテナの向
きの調整が難しい。これは、アンテナの利得Gと半値角
φ(アンテナ利得が2分の1になる角度)との間に、G
×(φの2乗)=4π(一定値)なる関係があり、パラ
ボラアンテナの場合、利得Gはアンテナの直径の2乗に
比例するのでアンテナの径が大きくなるほど半値角φが
小さくなり、例えば、アンテナの直径が45cmでは半値角
は約3.7 度であるが、直径が120cm では約1.5 度となる
ためで、径の大きいアンテナは指向性が鋭く、目的の衛
星を見つけることさえも難しく、調整に時間がかかると
いう問題がある。2. Description of the Related Art To adjust the direction when installing a parabolic antenna (hereinafter abbreviated as "antenna"), refer to the instructions attached to the antenna, check the approximate elevation angle of the satellite at the installation location, and adjust the elevation angle of the antenna roughly. It is common practice to make an adjustment, then coarsely adjust the azimuth, and then alternately finely adjust the elevation and azimuth to determine the best point. This method is not difficult for people who are accustomed to installing the antenna, or if the antenna diameter is small and the directivity is broad, but for people who have no experience installing the antenna or the antenna diameter. If is large, it is difficult to adjust the orientation of the antenna. This is because G is between the antenna gain G and the half-value angle φ (angle at which the antenna gain is halved).
There is a relation of × (square of φ) = 4π (constant value). In the case of a parabolic antenna, the gain G is proportional to the square of the diameter of the antenna. Therefore, the half-value angle φ decreases as the antenna diameter increases. When the diameter of the antenna is 45 cm, the half-value angle is about 3.7 degrees, but when the diameter is 120 cm, it is about 1.5 degrees. Therefore, the antenna with a large diameter has a sharp directivity, and it is difficult to find the target satellite. There is a problem that it takes time.
【0003】[0003]
【発明が解決しようとする課題】本発明はこのような点
に鑑み、アンテナの向きの調整時、粗調整の段階ではア
ンテナの指向性をブロードにして目的の衛星を捕捉しや
すくし、粗調整の終了後はアンテナ本来の指向性能に戻
し、微調整を行うようにすることにある。SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention, when adjusting the orientation of the antenna, broadens the directivity of the antenna during the coarse adjustment stage to facilitate the capture of the target satellite and to perform the coarse adjustment. After completing the above, the original directional performance of the antenna is restored and fine adjustment is performed.
【0004】[0004]
【課題を解決するための手段】本発明は上述の課題を解
決するため、一次放射器を外胴を支持アームで挟持する
ようにして取付けて放物面形状の反射鏡の前方に配設
し、マイクロ波帯の電波を受信するパラボラアンテナに
おいて、前記一次放射器の外胴の少なくとも前後2か所
に支持アーム取付部を設け、一方の支持アーム取付部で
一次放射器を支持アームに取付けた場合に反射鏡よりの
電波を一次放射器に最も多く入射するように設定し、他
方の支持アーム取付部で一次放射器を支持アームに取付
けて粗調整を行うようにしたパラボラアンテナの調整装
置を提供するものである。According to the present invention, in order to solve the above-mentioned problems, a primary radiator is mounted such that an outer shell is sandwiched by support arms and is arranged in front of a parabolic reflector. In a parabolic antenna for receiving radio waves in the microwave band, at least two front and rear portions of the outer shell of the primary radiator are provided with support arm attachment portions, and one of the support arm attachment portions attaches the primary radiator to the support arm. In this case, the parabolic antenna adjustment device is set so that the radio wave from the reflector is set to enter the primary radiator the most, and the primary radiator is attached to the support arm at the other support arm attachment part for coarse adjustment. It is provided.
【0005】[0005]
【作用】以上のように構成したので、本発明によるアン
テナの調整装置においては、アンテナの向きの粗調整時
にはパラボラ反射鏡に対する一次放射器の位置を前方若
しくは後方にずらし、指向性をブロードにして目的の衛
星の捕捉を容易にする。粗調整後は一次放射器を所定位
置に戻し、アンテナの持つ本来の指向性の得られる状態
にして微調整を行う。With the above-described structure, in the antenna adjusting apparatus according to the present invention, the position of the primary radiator with respect to the parabolic reflector is shifted forward or backward when the antenna orientation is roughly adjusted to broaden the directivity. Facilitates the acquisition of the target satellite. After the coarse adjustment, the primary radiator is returned to the predetermined position to make the original directivity of the antenna and fine adjustment is performed.
【0006】[0006]
【実施例】以下、図面に基づいて本発明によるアンテナ
の調整装置の実施例を詳細に説明する。図1は本発明に
よるアンテナの調整装置の概要を示す要部斜視図であ
る。図において、1はパラボラ反射鏡、2は一次放射
器、3は支持アームである。支持アーム3はパラボラ反
射鏡1と共にアンテナ取付具4に取付けられ、このアン
テナ取付具4をポール5に上下方向の傾きおよび左右方
向の向きを変えて仰角および方位角を調整できるように
取付けられている。衛星よりの電波はパラボラ反射鏡1
で反射され、焦点位置に配設された一次放射器2に入射
し、導波管6を経てコンバータ7に導かれ、所要の中間
周波数にダウンコンバートし、図示しない信号ケーブル
により受信機等に送出される。なお、8は受信する電波
に応じて受信機より出力される信号によりアンテナを水
平偏波/垂直偏波に切換える偏波切換器である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an antenna adjusting device according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view of an essential part showing an outline of an antenna adjusting apparatus according to the present invention. In the figure, 1 is a parabolic reflector, 2 is a primary radiator, and 3 is a support arm. The support arm 3 is attached to the antenna mounting tool 4 together with the parabolic reflector 1, and the antenna mounting tool 4 is mounted on the pole 5 so that the elevation angle and the azimuth angle can be adjusted by changing the vertical tilt and the horizontal direction. There is. Radio waves from satellites are parabolic reflector 1
Is reflected by, enters the primary radiator 2 arranged at the focal position, is guided to the converter 7 via the waveguide 6, is down-converted to a required intermediate frequency, and is sent to a receiver or the like by a signal cable (not shown). To be done. Reference numeral 8 denotes a polarization switching device that switches the antenna between horizontal polarization and vertical polarization according to a signal output from the receiver according to the received radio wave.
【0007】図2は本発明によるアンテナの調整装置の
一実施例の要部側面図である。図の11および12は一次放
射器2および導波管6の外胴に形成された凹部である。
凹部11および12は、それぞれ支持アーム3の一次放射器
を取付ける部分の幅に一致する幅に形成してあり、例え
ば、凹部12により支持アーム3に取付けることにより一
次放射器2はパラボラ反射鏡1の焦点に正確に配置さ
れ、パラボラ反射鏡1で反射された電波は最大限に一次
放射器2に入射する。アンテナの向きの調整は、最初に
粗調整を行ってから微調整を行う。粗調整は、ボルト13
を抜いて支持アーム3の上半分を上方に開き、支持アー
ム3から一次放射器2等を外し、矢印の反対方向(前
方)に動かし、支持アーム3で凹部11を挟持し、この状
態でアンテナの向きを調整して目的の衛星電波を捕捉
し、しかる後、支持アーム3が凹部12の位置になるよう
に一次放射器2等を後方に移動し、ボルト13を締付けて
支持アーム3に固定し、微調整を行う。あるいは、凹部
11の位置で支持アーム3に取付けた場合に一次放射器2
がパラボラ反射鏡1の焦点位置になるようにし、一次放
射器2等を矢印の方向(後方)に動かして粗調整を行う
ようにしてもよい。なお、支持アーム3の反対側(図の
裏側)も図の表側と同様にボルトで締付ける、あるいは
上下の当接部で互いに上下に交叉する形状に形成し、交
叉部分にヒンジを通して蝶番式に構成してもよい。FIG. 2 is a side view of essential parts of an embodiment of an antenna adjusting apparatus according to the present invention. Reference numerals 11 and 12 in the figure denote recesses formed in the outer shell of the primary radiator 2 and the waveguide 6.
The recesses 11 and 12 are each formed to have a width corresponding to the width of the portion where the primary radiator of the support arm 3 is mounted. For example, when the recess 12 is attached to the support arm 3, the primary radiator 2 becomes the parabolic reflector 1. The radio wave accurately placed at the focal point of and reflected by the parabolic reflector 1 is incident on the primary radiator 2 to the maximum extent. To adjust the orientation of the antenna, first make a coarse adjustment and then a fine adjustment. For coarse adjustment, use bolt 13
To open the upper half of the support arm 3 upward, remove the primary radiator 2 etc. from the support arm 3 and move it in the direction opposite to the arrow (forward) to sandwich the recess 11 with the support arm 3 and in this state the antenna The direction of the target satellite radio wave by adjusting the direction of, and after that, move the primary radiator 2 etc. rearward so that the support arm 3 is in the position of the recess 12, and tighten the bolt 13 to fix it to the support arm 3. And make fine adjustments. Or a recess
Primary radiator 2 when attached to support arm 3 at position 11
May be set to the focal position of the parabolic reflector 1 and the primary radiator 2 or the like may be moved in the direction of the arrow (rearward) to perform rough adjustment. The opposite side of the support arm 3 (the back side in the figure) is also tightened with bolts in the same manner as the front side in the figure, or is formed in a shape in which the upper and lower abutting portions cross each other vertically, and a hinge is formed through a hinge at the crossing portion You may.
【0008】図3は本発明によるアンテナの調整装置の
他の実施例の要部側面図である。図は、導波管6と略直
角の向きにコンバータ7を取付け、コンバータ7の側部
に設けた支持アーム取付台21により支持アーム3に取付
けるように構成した例である。22はボルト、23はアダプ
タである。一次放射器2は、アダプタ23を支持アーム3
および支持アーム取付台21の間に挿着した状態でパラボ
ラ反射鏡の焦点に位置するように設定する。アンテナの
粗調整は、支持アーム3とボルト22の頭の間にアダプタ
23を挿着した位置(図の、支持アーム3の左側にあるア
ダプタ23を右側に移す)、すなわち、一次放射器2を矢
印aの反対方向(前方)に動かした位置でボルト22を仮
締めして行い、粗調整後、ボルト22を緩めてアダプタ23
を矢印bの向きに回すようにして抜取り、一次放射器2
を矢印aの方向に動かして図の位置に移動し、支持アー
ム取付台21と支持アーム3との間に隙間を空け、抜取っ
たアダプタ23をここに矢印bと反対の向きに回しながら
図に示すように挿着し、ボルト22を締付けて一次放射器
2を固定し、微調整を行う。アダプタ23を図のようにS
字型に形成することにより、ボルト22を抜かずに緩める
のみでアダプタ23を抜取ることができる。なお、アダプ
タ23を支持アームの前側に挿着し支持アーム取付台21を
支持アーム3に密着させた状態で一次放射器2がパラボ
ラ反射鏡の焦点に位置するように設定し、アダプタ23を
支持アーム3および支持アーム取付台21の間に挿着した
状態で粗調整を行うようにしてもよい。FIG. 3 is a side view of the essential parts of another embodiment of the antenna adjusting apparatus according to the present invention. The figure shows an example in which the converter 7 is attached in a direction substantially perpendicular to the waveguide 6 and is attached to the support arm 3 by a support arm attachment base 21 provided on the side of the converter 7. 22 is a bolt and 23 is an adapter. The primary radiator 2 mounts the adapter 23 on the support arm 3
And, it is set so as to be positioned at the focal point of the parabolic reflector in a state where it is inserted between the support arm mounts 21. For coarse adjustment of the antenna, use an adapter between the support arm 3 and the head of the bolt 22.
Temporarily tighten the bolt 22 at the position where the 23 is inserted (the adapter 23 on the left side of the support arm 3 in the figure is moved to the right side), that is, the position where the primary radiator 2 is moved in the direction opposite to the arrow a (forward). After coarse adjustment, loosen bolt 22 and adapter 23
The primary radiator 2 by turning it in the direction of arrow b.
Move in the direction of the arrow a to the position shown in the figure, make a gap between the support arm mount 21 and the support arm 3, and rotate the removed adapter 23 in the direction opposite to the arrow b. Then, the primary radiator 2 is fixed by tightening the bolts 22 and then finely adjusting. Connect the adapter 23 as shown
By forming it in a V shape, the adapter 23 can be pulled out only by loosening it without pulling out the bolt 22. The primary radiator 2 is set so as to be located at the focal point of the parabolic reflector with the adapter 23 inserted in the front side of the support arm and the support arm mount 21 in close contact with the support arm 3 to support the adapter 23. Rough adjustment may be performed in a state in which the arm 3 and the support arm mount 21 are inserted and attached.
【0009】あるいは、E字型のアダプタ23′を形成
し、上下の凹みの部分にボルトを挿通するようにしても
よい。Alternatively, the E-shaped adapter 23 'may be formed and the bolts may be inserted into the upper and lower recessed portions.
【0010】上述のように、一次放射器2をパラボラ反
射鏡の焦点位置から前方若しくは後方に動かすことによ
り指向性がブロードになり、衛星の電波を捕捉しやすく
なる。これを図4により説明する。図4(イ)は一次放
射器2を矢印aの如く前方に動かした場合の例(実線→
点線)で、一次放射器2が正規の位置(実線)、すなわ
ち、パラボラの焦点にある場合はパラボラ反射鏡1によ
る反射波の殆ど(矢印bの範囲)が一次放射器2に入射
するのに対し、一次放射器2を前方(点線の位置)に動
かすことにより一次放射器2には点線で示す矢印cの範
囲の反射波のみが入射するものとなる。これはパラボラ
反射鏡1の径を小さくしたことと同じであり、利得が低
下して指向性がブロードになり、パラボラ反射鏡1(一
次放射器2を含む)の向きがずれていても衛星電波を捕
捉できる範囲(仰角・方位角)が広まるので調整が容易
になる。図4(ロ)は一次放射器2等を例えば、a′の
如く後方に動かした場合の例(実線→点線)で、一次放
射器2には点線で示す矢印c′の範囲の反射波のみが入
射するものとなり、(イ)の場合と同様、パラボラ反射
鏡に径の小さいものを使用したことと等価になり、指向
性がブロードになって衛星電波の捕捉が容易になる。As described above, by moving the primary radiator 2 forward or backward from the focus position of the parabolic reflector, the directivity becomes broad and it becomes easy to capture the radio waves of the satellite. This will be described with reference to FIG. FIG. 4A shows an example in which the primary radiator 2 is moved forward as indicated by an arrow a (solid line →
In the dotted line, the primary radiator 2 is at the normal position (solid line), that is, when the parabola is at the focal point, most of the reflected waves from the parabolic reflector 1 (range of arrow b) are incident on the primary radiator 2. On the other hand, by moving the primary radiator 2 forward (position of the dotted line), only the reflected wave within the range of the arrow c shown by the dotted line is incident on the primary radiator 2. This is the same as making the diameter of the parabolic reflector 1 smaller, the gain is lowered and the directivity is broadened, and even if the direction of the parabolic reflector 1 (including the primary radiator 2) is deviated, satellite radio waves Since the range (elevation angle / azimuth angle) that can be captured is widened, adjustment is easy. FIG. 4B shows an example in which the primary radiator 2 and the like are moved backward, for example, as indicated by a ′ (solid line → dotted line). The primary radiator 2 includes only reflected waves in the range of arrow c ′ indicated by the dotted line. Will be incident, which is equivalent to using a parabolic reflector with a small diameter, as in the case of (a), and the directivity becomes broad and satellite radio waves can be easily captured.
【0011】[0011]
【発明の効果】以上に説明したように、本発明によるア
ンテナの調整装置によれば、粗調整時には一次放射器を
正規の位置から前方若しくは後方にずらすことができる
のでアンテナの指向性がブロードとなり、径の大きいア
ンテナの場合でも粗調整が容易であり、粗調整後、一次
放射器を正規の位置に戻して微調整を行うので、アンテ
ナの持つ性能の発揮に支障を来たすことがない。一次放
射器は、図2の例では外胴に設けた凹部の幅が支持アー
ムの幅に一致しているので、粗調整時に一次放射器を動
かしても粗調整後に容易に正規の位置に戻すことがで
き、また、図2の例では、アダプタを移動するのみで微
調整時に一次放射器を正規の位置に戻すことができる。As described above, according to the antenna adjusting apparatus of the present invention, the primary radiator can be moved forward or backward from the normal position during coarse adjustment, so that the directivity of the antenna becomes broad. Even in the case of an antenna having a large diameter, rough adjustment is easy, and after the rough adjustment, the primary radiator is returned to the normal position and fine adjustment is performed, so that the performance of the antenna is not hindered. In the case of the primary radiator, the width of the concave portion provided in the outer shell matches the width of the support arm in the example of FIG. 2, so even if the primary radiator is moved during coarse adjustment, it can be easily returned to the normal position after coarse adjustment. Further, in the example of FIG. 2, the primary radiator can be returned to the normal position at the time of fine adjustment simply by moving the adapter.
【図1】本発明によるパラボラアンテナの調整装置の概
要を示す要部斜視図である。FIG. 1 is a perspective view of an essential part showing an outline of a parabolic antenna adjusting device according to the present invention.
【図2】本発明によるパラボラアンテナの調整装置の一
実施例の要部側面図である。FIG. 2 is a side view of essential parts of an embodiment of a parabolic antenna adjusting device according to the present invention.
【図3】本発明によるパラボラアンテナの調整装置の他
の実施例の要部側面図である。FIG. 3 is a side view of essential parts of another embodiment of the parabolic antenna adjusting device according to the present invention.
【図4】一次放射器の前後移動によるパラボラ反射鏡の
実効径の狭まりを説明する図である。FIG. 4 is a diagram for explaining the narrowing of the effective diameter of the parabolic reflector due to the forward and backward movement of the primary radiator.
1 パラボラ反射鏡 2 一次放射器 3 支持アーム 6 導波管 7 コンバータ 21 支持アーム取付台 22 ボルト 23、23′アダプタ 1 Parabolic reflector 2 Primary radiator 3 Support arm 6 Waveguide 7 Converter 21 Support arm mount 22 Bolt 23, 23 'Adapter
Claims (7)
るようにして取付けて放物面形状の反射鏡の前方に配設
し、マイクロ波帯の電波を受信するパラボラアンテナに
おいて、前記一次放射器の外胴の少なくとも前後2か所
に支持アーム取付部を設けてなるパラボラアンテナの調
整装置。1. A parabolic antenna for mounting an outer shell of a primary radiator so as to be sandwiched between support arms and disposing the parabolic reflector in front of the parabolic antenna to receive radio waves in a microwave band. An adjusting device for a parabolic antenna, wherein support arm attachment portions are provided at least at two front and rear positions of the outer body of the radiator.
器を前記支持アームに取付けた場合に反射鏡よりの電波
を一次放射器に最も多く入射するように設定し、他方の
支持アーム取付部で一次放射器を支持アームに取付けて
粗調整を行うようにした請求項1記載のパラボラアンテ
ナの調整装置。2. When the primary radiator is attached to one of the support arm attachment portions, the radio wave from the reflecting mirror is set to be incident on the primary radiator most, and the other support arm attachment portion is set. The adjustment device for the parabolic antenna according to claim 1, wherein the primary radiator is attached to the support arm for rough adjustment.
外胴に支持アームの一次放射器を取付ける部分の幅に対
応する幅の凹部を設けたものでなる請求項1または請求
項2記載のパラボラアンテナの調整装置。3. The support arm mounting portion is provided with a recess having a width corresponding to a width of a portion where the primary radiator of the support arm is mounted on the outer shell of the primary radiator. Parabolic antenna adjustment device.
持アーム取付部を設けて一次放射器を支持アームに取付
け、放物面形状の反射鏡の前方に配設してマイクロ波帯
の電波を受信するパラボラアンテナにおいて、前記支持
アーム取付部と前記支持アームとの間に介挿するアダプ
タを設けてなるパラボラアンテナの調整装置。4. A microwave band which is provided with a support arm attachment portion at a portion perpendicular to the outer shell of the primary radiator to attach the primary radiator to the support arm and which is disposed in front of a parabolic reflector. Parabolic antenna for receiving radio waves of the above, wherein a parabolic antenna adjusting device is provided with an adapter inserted between the support arm attachment portion and the support arm.
よび前記支持アームの間に介挿した場合に反射鏡よりの
電波を一次放射器に最も多く入射するように設定し、前
記アダプタを前記支持アーム取付部および前記支持アー
ムの間に介挿しない状態で粗調整を行うようにした請求
項4記載のパラボラアンテナの調整装置。5. When the adapter is inserted between the support arm attachment portion and the support arm, the radio wave from the reflecting mirror is set to enter the primary radiator most, and the adapter is set to the support arm. The adjustment device for the parabolic antenna according to claim 4, wherein the coarse adjustment is performed without being inserted between the mounting portion and the support arm.
凹み部分にそれぞれボルト等を挿通して前記支持アーム
と支持アーム取付部とを締結するようにした請求項4ま
たは請求項5記載のパラボラアンテナの調整装置。6. The adapter according to claim 4 or 5, wherein the adapter is formed in an S shape, and bolts or the like are inserted into the upper and lower recessed portions to fasten the support arm and the support arm attachment portion. Parabolic antenna adjustment device.
凹み部分にそれぞれボルト等を挿通して前記支持アーム
と支持アーム取付部とを締結するようにした請求項4ま
たは請求項5記載のパラボラアンテナの調整装置。7. The adapter according to claim 4 or 5, wherein the adapter is formed in an E shape, and bolts or the like are inserted into the upper and lower recessed portions to fasten the support arm and the support arm attachment portion. Parabolic antenna adjustment device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8412895A JPH08288720A (en) | 1995-04-10 | 1995-04-10 | Device for adjusting parabolic antenna |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8412895A JPH08288720A (en) | 1995-04-10 | 1995-04-10 | Device for adjusting parabolic antenna |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH08288720A true JPH08288720A (en) | 1996-11-01 |
Family
ID=13821879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8412895A Pending JPH08288720A (en) | 1995-04-10 | 1995-04-10 | Device for adjusting parabolic antenna |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH08288720A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1227541A3 (en) * | 2001-01-30 | 2003-11-12 | Andrew AG | Reflector antenna |
-
1995
- 1995-04-10 JP JP8412895A patent/JPH08288720A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1227541A3 (en) * | 2001-01-30 | 2003-11-12 | Andrew AG | Reflector antenna |
US6943750B2 (en) | 2001-01-30 | 2005-09-13 | Andrew Corporation | Self-pointing antenna scanning |
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