JPH033502A - Mirror surface correction antenna - Google Patents
Mirror surface correction antennaInfo
- Publication number
- JPH033502A JPH033502A JP13785489A JP13785489A JPH033502A JP H033502 A JPH033502 A JP H033502A JP 13785489 A JP13785489 A JP 13785489A JP 13785489 A JP13785489 A JP 13785489A JP H033502 A JPH033502 A JP H033502A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- error signal
- reception
- reflector
- detection section
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000012986 modification Methods 0.000 claims description 9
- 230000004048 modification Effects 0.000 claims description 9
- 230000005855 radiation Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 210000004789 organ system Anatomy 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Landscapes
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
【発明の詳細な説明】
【産業上の利用分野］
本発明は複反射鏡アンテナの鏡面を修整して電波の進行
方向に直角な断面におけるビーム形状が高度な成形ビー
ムを得る鏡面修整アンテナに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mirror-modified antenna that obtains a shaped beam with a high degree of beam shape in a cross section perpendicular to the direction of propagation of radio waves by modifying the mirror surface of a double-reflector antenna.
従来、複反射鏡アンテナで高度な成形ビームを得る方法
として鏡面修整オフセットグレゴリアンアンテナ等が考
案されている（昭和６３年電子情報通信学会春季全国大
会５Ｂ−１−２ｒ鏡面修整による高度成形ビームアンテ
ナ」正源、王丸、 ＮＨＫ）。この鏡面修整アンテナを
使用して人工衛星から１２ＧＨｚ帯の周波数で放送サー
ビスを行う場合、常に一定方向にアンテナを指向させる
ために、１７ＧＨｚ帯の地上局からの信号を使い指向誤
差を検出するためのアンテナが別に必要であった。Conventionally, as a method of obtaining a highly shaped beam using a double-reflector antenna, a mirror-modified offset Gregorian antenna has been devised (1986 Institute of Electronics, Information and Communication Engineers Spring National Conference 5B-1-2r Advanced Shaped Beam Antenna by Mirror Modification). Shogen, Oumaru, NHK). When using this mirror-finished antenna to provide broadcasting services from an artificial satellite at a frequency in the 12 GHz band, in order to always point the antenna in a fixed direction, a signal from a ground station in the 17 GHz band is used to detect pointing errors. A separate antenna was required.
従来例を第２図に示す。ｌは主反射鏡１１及び副反射鏡
１２並びに給電ホーン１３からなる複反射鏡型鏡面修整
アンテナ、３２は中継器、４１は追尾受信機（ＴＲＣＫ
−ＲＣＶＲ）、４２はアンテナ指向制御回路、４３は
アンテナ指向制御機構（ＡＰＭ） 、５は受信用アンテ
す、５１は受信用アンテナ５の反射鏡、５２は受信用ア
ンテナ５の給電ホーンであり、これらの機器は人工衛星
の本体６に搭載されている。受信用アンテナ５で受信さ
れ給電ホーン５２から出力された１７ＧＨｚ帯の受信信
号は中継器３２で１２ＧＨｚ帯送信周波数に変換されて
鏡面修整アンテナ１より地球に向けて放射される。A conventional example is shown in FIG. 1 is a double-reflector type mirror-finished antenna consisting of a main reflector 11, a sub-reflector 12, and a feeding horn 13; 32 is a repeater; 41 is a tracking receiver (TRCK);
-RCVR), 42 is an antenna pointing control circuit, 43 is an antenna pointing control mechanism (APM), 5 is a receiving antenna, 51 is a reflector of the receiving antenna 5, 52 is a feeding horn of the receiving antenna 5, These devices are mounted on the main body 6 of the artificial satellite. A 17 GHz band reception signal received by the reception antenna 5 and output from the feeding horn 52 is converted into a 12 GHz band transmission frequency by the repeater 32 and radiated toward the earth from the mirror-finished antenna 1.
上述した従来の鏡面修整アンテナ１は１２Ｇ）Ｉｚ送信
周波数帯で高度な成形ビームが得られるように副反射鏡
１２を凹凸させて主反射鏡１１面上の振幅分布及び主反
射鏡面を凹凸させて主反射鏡開口面上の位相分布を修整
しているため、この鏡面修整アンテナ１を使用し、１７
ＧＨｚ帯の受信信号を使用して追尾を行う場合、別のア
ンテナで指向させる方向を検出し、このデータを基に鏡
面修整アンテナ１を指向させるという追尾方式が提案さ
れている。The above-mentioned conventional mirror-finished antenna 1 has a sub-reflector 12 made uneven to make the amplitude distribution on the surface of the main reflector 11 and the main reflecting mirror surface uneven so that a highly shaped beam can be obtained in the 12G) Iz transmission frequency band. Since the phase distribution on the main reflector aperture is modified, this mirror-finished antenna 1 is used, and 17
When tracking is performed using a received signal in the GHz band, a tracking method has been proposed in which the direction in which another antenna is directed is detected, and the mirror surface modification antenna 1 is directed based on this data.
特に、人工衛星に従来の鏡面修整アンテナを搭載する場
合、追尾用として鏡面修整アンテナ１とは別に追尾及び
受信専用のアンテナ５が必要となり、重量増加等の欠点
がある。In particular, when a conventional mirror-finished antenna is mounted on an artificial satellite, an antenna 5 dedicated to tracking and reception is required in addition to the mirror-finished antenna 1 for tracking, which has drawbacks such as increased weight.
本発明の目的は前記課題を解決した通信装置を提供する
ことにある。An object of the present invention is to provide a communication device that solves the above problems.
前記目的を達成するため、本発明は電波の進行方向に直
角な断面におけるアンテナ放射パターンの形状を、高度
な成形ビームとなるように副反射鏡を凹凸させて主反射
鏡面上の振幅分布及び主反射鏡面を凹凸させて主反射鏡
開口面上の位相分布を修整する複反射鏡型の鏡面修整ア
ンテナにおいて、前記複反射鏡型鏡面修整アンテナを放
送信号の送受信用アンテナ及び追尾受信用アンテナに兼
用し、さらに複反射鏡型鏡面修整アンテナの給電ホーン
の送信周波数帯及び受信周波数帯のビーム幅、反射鏡の
修整量を適切に選択することにより、送信周波数帯では
高度な成形ビームを得、かつ受信周波数帯では良好な誤
差信号を得る誤差信号検出部を有するものである。In order to achieve the above object, the present invention improves the shape of the antenna radiation pattern in a cross section perpendicular to the direction of propagation of radio waves by making the sub-reflector uneven so that it becomes a highly shaped beam, thereby changing the amplitude distribution on the main reflecting mirror surface and the main beam. In a double-reflector-type mirror-finished antenna that modifies the phase distribution on the main reflector aperture by making the reflecting mirror surface uneven, the double-reflector-type mirror-finished antenna is used both as a broadcast signal transmission/reception antenna and as a tracking reception antenna. Furthermore, by appropriately selecting the beam width of the transmitting frequency band and the receiving frequency band of the feed horn of the double-reflector mirror-finished antenna, and the amount of modification of the reflector, a highly shaped beam can be obtained in the transmitting frequency band. It has an error signal detection section that obtains a good error signal in the reception frequency band.
以下、本発明の一実施例を図により説明する。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例を示す構成図である。FIG. 1 is a block diagram showing an embodiment of the present invention.
図において、１は主反射鏡１１及び副反射鏡１２並びに
給電ホーン１３からなり、人工衛星本体６に搭載される
複反射鏡型鏡面修整アンテナであり、該鏡面修整アンテ
ナｌは電波の進行方向に直角な断面におけるアンテナ放
射パターンの形状を、高度な成形ビームとなるように副
反射鏡１２を凹凸させて主反射鏡１１の面上での振幅分
布及び主反射鏡面を凹凸させて主反射鏡開口面上の位相
分布を修整する構造になっている。前記高度な成形ビー
ムは例えば日本列島の形状に合った成形ビームに整形さ
れる。In the figure, reference numeral 1 denotes a double-reflector-type mirror-finished antenna that includes a main reflector 11, a sub-reflector 12, and a feeding horn 13, and is mounted on the satellite body 6. The mirror-finished antenna 1 is arranged in the direction of propagation of radio waves. The shape of the antenna radiation pattern in a right-angled cross section is changed by making the sub-reflector 12 uneven and the amplitude distribution on the surface of the main reflecting mirror 11 and the main reflecting mirror aperture by making the main reflecting mirror surface uneven so that it becomes a highly shaped beam. It has a structure that modifies the phase distribution on the surface. The highly shaped beam is shaped into a shaped beam that matches the shape of the Japanese archipelago, for example.
本発明は前記複反射鏡型鏡面修整アンテナ１を放送信号
の送受信用アンテナ及び追尾受信用アンテナに兼用し、
さらに、鏡面修整アンテナ１の給電ホーン１３の送信周
波数（１２Ｇｌ（ｚの放送信号）帯及び受信周波数（地
上局からの１７ＧＨｚの受信信号）帯のビーム幅、反射
鏡１１．１２の修整量を選択する誤差信号検出部２と、
誤差信号検出部２にて得られた誤差信号（１７ＧＨｚ）
に基づいて鏡面修整アンテナ１１特に副反射鏡１２の指
向制御を行う処理系４と、誤差信号検出部２よりの誤差
信号を放送信号（１２ＧＨｚ）に変換して誤差信号検出
部２に中継する中継器系３とを有し、これらを人工衛星
本体６に搭載したものである。The present invention uses the double-reflector type mirror-finished antenna 1 as an antenna for transmitting and receiving broadcast signals and as an antenna for tracking and receiving,
Furthermore, the beam width of the transmission frequency (12Gl (z broadcast signal) band and reception frequency (17GHz reception signal from the ground station) band of the feeding horn 13 of the mirror surface modification antenna 1 and the amount of modification of the reflector 11 and 12 are selected. an error signal detection unit 2,
Error signal obtained by error signal detection section 2 (17 GHz)
a processing system 4 that performs directivity control of the mirror surface modification antenna 11, particularly the sub-reflector 12, based on The artificial satellite body 6 has an organ system 3 and these are mounted on the artificial satellite main body 6.
前記誤差信号検出部２は追尾用の誤差信号を検出する方
式として、マルチホーン方式又は高次モード方式のいず
れを用いてもよい。The error signal detection section 2 may use either a multi-horn method or a high-order mode method as a method for detecting an error signal for tracking.
中継器系３はダイプレクサ（Ｄ Ｉ Ｐ）３１、中継器
３２を含み、受信された１７ＧＨｚの受信信号を１２Ｇ
Ｈｚ帯の放送信号に変換する。The repeater system 3 includes a diplexer (DIP) 31 and a repeater 32, and converts the received 17GHz signal to 12G.
Convert to Hz band broadcast signal.
処理系４は追尾する受信機（ＴＲＣＫ −ＲＣＶＲ）４
１ 、アンテナ指向制御回路（ＡＰＥ） ４２、アンテ
ナ指向機構（ＡＰＭ） ４３を含む。The processing system 4 is a tracking receiver (TRCK-RCVR) 4
1, an antenna pointing control circuit (APE) 42, and an antenna pointing mechanism (APM) 43.
実施例において、鏡面修整アンテナ１にて受信された受
信信号（１７ＧＨｚ）は給電ホーン１３を介して誤差信
号検出部２に入力し、そのビーム幅が選択され、誤差信
号として出力される。In the embodiment, a received signal (17 GHz) received by the mirror-finished antenna 1 is input to the error signal detection unit 2 via the feeding horn 13, its beam width is selected, and the signal is output as an error signal.
誤差信号検出部２で取り出された誤差信号に基づいて処
理系４はアンテナ１の指向制御を行う。A processing system 4 performs directivity control of the antenna 1 based on the error signal extracted by the error signal detection section 2.
一方、中継器系３は誤差信号検出部２の誤差信号を１２
ＧＨｚの放送信号に変換し、これが誤差信号検出部２に
中継され、アンテナ１から地上に向けて放射される。On the other hand, the repeater system 3 converts the error signal of the error signal detection section 2 into 12
It is converted into a GHz broadcast signal, which is relayed to the error signal detection section 2 and radiated from the antenna 1 toward the ground.
以上のように、誤差信号検出部２は送信周波数帯及び受
信周波数帯におけるビーム幅、反射鏡の修整量を選択す
ることにより、送信周波数帯では高度な成形ビームを得
、かつ受信周波数帯で良好な誤差信号を得ることになる
。As described above, the error signal detection unit 2 obtains a highly shaped beam in the transmission frequency band and a well-shaped beam in the reception frequency band by selecting the beam width and the amount of modification of the reflector in the transmission frequency band and the reception frequency band. This results in an accurate error signal.
［発明の効果］
以上説明したように本発明は、鏡面修整アンテナに誤差
信号検出部を組合せることにより、追尾受信用アンテナ
を別に用いず追尾及び送・受信でき、重量軽減及び搭載
場所の制限を減らす効果がある。さらに、鏡面修整アン
テナで誤差信号を検出しているため、アンテナの指向精
度も高いという効果がある。[Effects of the Invention] As explained above, the present invention combines a mirror-finished antenna with an error signal detection section to enable tracking, transmission and reception without using a separate tracking and receiving antenna, reducing weight and limiting the mounting location. It has the effect of reducing Furthermore, since the error signal is detected using a mirror-finished antenna, the antenna has a high pointing accuracy.
第１図は本発明の一実施例を示す構成図、第２図は従来
例を示す構成図である。
２・・・誤差信号検出部
４・・・処理系
ｌ・・・鏡面修整アンテナ
３・・・中継器系
６・・・人工衛星本体FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional example. 2...Error signal detection unit 4...Processing system l...Mirror surface modification antenna 3...Relay system 6...Satellite main body
Claims (1)
射パターンの形状を、高度な成形ビームとなるように副
反射鏡を凹凸させて主反射鏡面上の振幅分布及び主反射
鏡面を凹凸させて主反射鏡開口面上の位相分布を修整す
る複反射鏡型の鏡面修整アンテナにおいて、前記複反射
鏡型鏡面修整アンテナを放送信号の送受信用アンテナ及
び追尾受信用アンテナに兼用し、さらに複反射鏡型鏡面
修整アンテナの給電ホーンの送信周波数帯及び受信周波
数帯のビーム幅、反射鏡の修整量を適切に選択すること
により、送信周波数帯では高度な成形ビームを得、かつ
受信周波数帯では良好な誤差信号を得る誤差信号検出部
とを有することを特徴とする鏡面修整アンテナ。(1) The shape of the antenna radiation pattern in a cross section perpendicular to the direction of radio wave propagation is changed by making the sub-reflector uneven and the amplitude distribution on the main reflecting mirror surface and the main reflecting mirror surface uneven so that it becomes a highly shaped beam. In a double-reflector-type mirror-finishing antenna that modifies the phase distribution on the reflector aperture, the double-reflector-type mirror-finish antenna is used both as a transmitting and receiving antenna for broadcasting signals and as a tracking reception antenna. By appropriately selecting the beam width in the transmission frequency band and reception frequency band of the feeding horn of the mirror-modified antenna, and the modification amount of the reflector, a highly shaped beam can be obtained in the transmission frequency band, and a good error error can be achieved in the reception frequency band. 1. A mirror surface modified antenna, comprising: an error signal detection section for obtaining a signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1137854A JP3005229B2 (en) | 1989-05-31 | 1989-05-31 | Mirror modified antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1137854A JP3005229B2 (en) | 1989-05-31 | 1989-05-31 | Mirror modified antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH033502A true JPH033502A (en) | 1991-01-09 |
| JP3005229B2 JP3005229B2 (en) | 2000-01-31 |
Family
ID=15208337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1137854A Expired - Lifetime JP3005229B2 (en) | 1989-05-31 | 1989-05-31 | Mirror modified antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3005229B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2014061293A1 (en) * | 2012-10-16 | 2016-09-05 | 三菱電機株式会社 | Reflector antenna device |
-
1989
- 1989-05-31 JP JP1137854A patent/JP3005229B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2014061293A1 (en) * | 2012-10-16 | 2016-09-05 | 三菱電機株式会社 | Reflector antenna device |
| US9543659B2 (en) | 2012-10-16 | 2017-01-10 | Mitsubishi Electric Corporation | Reflector antenna device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3005229B2 (en) | 2000-01-31 |
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