JPH08262084A - Measuring device of field in proximity to antenna - Google Patents
Measuring device of field in proximity to antennaInfo
- Publication number
- JPH08262084A JPH08262084A JP5949295A JP5949295A JPH08262084A JP H08262084 A JPH08262084 A JP H08262084A JP 5949295 A JP5949295 A JP 5949295A JP 5949295 A JP5949295 A JP 5949295A JP H08262084 A JPH08262084 A JP H08262084A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- radio wave
- element group
- measured
- field
- 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
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、例えば人工衛星等の
宇宙航行体に搭載される開口アンテナ等のアンテナ装置
の近傍界測定に用いられるアンテナ近傍界測定装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna near-field measuring device used for near-field measurement of an antenna device such as an aperture antenna mounted on a spacecraft such as an artificial satellite.
【０００２】[0002]
【従来の技術】従来、アンテナ近傍界測定装置として
は、図２に示すように枠体１に略十字状の移送路１ａ，
１ｂを設け、この移送路１ａ，１ｂには、導波管プロー
ブ２が走査自在に設けられる。この導波管プローブ２
は、図示しない被測定アンテナに対向配置され、その出
力端には、ミキサ３、レシーバ４を介して制御計算機５
に接続されて、この制御計算機５を介して移送路１ａ，
１ｂ上を矢印方向に所定の間隔に移送されて２次元的に
走査される。2. Description of the Related Art Conventionally, as an antenna near-field measuring device, as shown in FIG.
1b is provided, and the waveguide probe 2 is provided on the transfer paths 1a and 1b so as to be scannable. This waveguide probe 2
Is placed facing an antenna under measurement (not shown), and the output end thereof is controlled by the control computer 5 via the mixer 3 and the receiver 4.
Is connected to the transfer path 1a via this control computer 5,
1b is moved in the arrow direction at a predetermined interval and is two-dimensionally scanned.
【０００３】すなわち、導波管プローブ２は、その各走
査位置で上記被測定アンテナ（図示せず）の各部からの
電波（高周波（ＲＦ）信号）が入力端に入力される。こ
の導波管プローブ２に入力された電波は、ミキサ３、レ
シーバ４を介して中間周波（ＩＦ）信号に変換され、こ
のＩＦ信号が制御計算機５に入力される。この制御計算
機５は、入力したＩＦ信号に基づいて上記被測定アンテ
ナ（図示せず）のアンテナ近傍界の放射特性を検出す
る。That is, in the waveguide probe 2, radio waves (high frequency (RF) signals) from the respective parts of the antenna to be measured (not shown) are input to the input end at each scanning position. The radio wave input to the waveguide probe 2 is converted into an intermediate frequency (IF) signal via the mixer 3 and the receiver 4, and the IF signal is input to the control computer 5. The control computer 5 detects the radiation characteristic of the antenna near field of the antenna under measurement (not shown) based on the input IF signal.
【０００４】ところが、上記アンテナ近傍界測定装置で
は、導波管プローブ２を移送路１ａ，１ｂ上を２次元的
に走査させて、その各走査位置において、上記被測定ア
ンテナ（図示せず）から電波を取得することにより、ア
ンテナ近傍界の放射特性を検出する構成上、その移送路
１ａ，１ｂを含む走査機構が非常に大掛かりとなり、大
型となるという問題を有する。また、被測定アンテナ
（図示せず）の全サンプリングデータを取得するのに長
時間費やすという問題を有する。However, in the antenna near-field measuring apparatus, the waveguide probe 2 is two-dimensionally scanned on the transfer paths 1a and 1b, and at each scanning position, the antenna to be measured (not shown) is used. Due to the configuration of detecting the radiation characteristics in the near field of the antenna by acquiring the radio waves, the scanning mechanism including the transfer paths 1a and 1b becomes very large and large in size. Further, there is a problem that it takes a long time to acquire all sampling data of the antenna under measurement (not shown).
【０００５】[0005]
【発明が解決しようとする課題】以上述べたように、従
来のアンテナ近傍界測定装置では、走査機構が大掛かり
となり、大形となると共に、検出に長時間費やすという
問題を有する。この発明は上記の事情に鑑みてなされた
もので、簡易な構成で、且つ高精度にして、迅速なアン
テナ近傍界測定を実現し得るようにしたアンテナ近傍界
測定装置を提供することを目的とする。As described above, the conventional antenna near-field measuring device has a problem that the scanning mechanism becomes large and large, and that it takes a long time for detection. The present invention has been made in view of the above circumstances, and an object thereof is to provide an antenna near-field measuring device that has a simple configuration and is highly accurate, and that can realize rapid antenna near-field measurement. To do.
【０００６】[0006]
【課題を解決するための手段】この発明は、被測定アン
テナに対向配置される複数のアンテナ素子が直並列状に
配列されてなるアンテナ素子群と、このアンテナ素子群
のアンテナ素子で受信した電波を直流信号に変換する電
波変換手段と、前記アンテナ素子群の複数のアンテナ素
子を切換駆動して各アンテナ素子で受信した電波を前記
電波変換手段ルで直流信号に変換し、この直流信号に基
づいて前記被測定アンテナの近傍界の放射特性を検出す
る制御検出手段とを備えてアンテナ近傍界測定装置を構
成したものである。The present invention is directed to an antenna element group in which a plurality of antenna elements arranged to face an antenna to be measured are arranged in series and in parallel, and a radio wave received by the antenna element of the antenna element group. To a DC signal and a plurality of antenna elements of the antenna element group are switched and driven to convert the radio waves received by each antenna element into a DC signal by the radio wave converting means, and based on this DC signal And a control detecting means for detecting the radiation characteristic of the near field of the antenna to be measured.
【０００７】[0007]
【作用】上記構成によれば、アンテナ素子群のアンテナ
素子は、順に切換駆動されることにより、対向配置され
る被測定アンテナからの電波をそれぞれ受信し、この各
アンテナ素子で受信した電波が直流信号に変換され、こ
の直流信号に基づいて被測定アンテナの近傍界の放射特
性が検出される。これにより、アンテナ素子群のアンテ
ナ素子を電気的に切換駆動するだけで、被測定アンテナ
の全サンプリングデータの取得が可能となり、測定時間
の短縮化が図れる。According to the above structure, the antenna elements of the antenna element group are sequentially driven to be switched, so that they receive the radio waves from the antennas to be measured which are arranged opposite to each other, and the radio waves received by the respective antenna elements are DC. The signal is converted into a signal, and the radiation characteristic in the near field of the antenna under measurement is detected based on this DC signal. As a result, it is possible to acquire all sampling data of the antenna to be measured by simply electrically switching and driving the antenna elements of the antenna element group, and the measurement time can be shortened.
【０００８】[0008]
【実施例】以下、この発明の実施例について、図面を参
照して詳細に説明する。図１はこの発明の一実施例に係
るアンテナ近傍界測定装置を示すもので、枠体１０に
は、アンテナ素子群１１が配設される。このアンテナ素
子群１１は、複数のアンテナ素子１１ａ…が枠体１０内
に直並列状に配列配置され、このアンテナ素子１１ａ…
の各出力端には、送受信モジュール１２が接続される。
そして、この送受信モジュール１２には、制御計算機１
３が接続される。制御計算機１３は、アンテナ素子群１
１のアンテナ素子１１ａ…を図示しない被測定アンテナ
に対応して電気的に切換駆動して、アンテナ素子１１ａ
…に上記被測定アンテナ（図示せず）からの電波（高周
波（ＲＦ）信号）を順に受信するように制御する。この
アンテナ素子群１１の各アンテナ素子１１ａ…は受信し
た電波を送受信モジュール１２に出力する。送受信モジ
ュール１２は、入力した電波を直流（ＤＣ）信号に変換
して、この直流信号を制御計算機１３に出力する。制御
計算機１３は、入力した直流信号に基づいてアンテナ近
傍界の放射特性を検出する。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an antenna near field measuring apparatus according to an embodiment of the present invention, in which a frame body 10 is provided with an antenna element group 11. In the antenna element group 11, a plurality of antenna elements 11a ... Are arranged in series and in parallel in the frame body 10. The antenna elements 11a.
The transmission / reception module 12 is connected to each output terminal of.
The transmission / reception module 12 includes the control computer 1
3 are connected. The control computer 13 uses the antenna element group 1
The antenna element 11a of No. 1 is electrically switched to drive the antenna element 11a ...
It is controlled so that radio waves (high frequency (RF) signals) from the above-mentioned antenna under measurement (not shown) are sequentially received. Each antenna element 11a of the antenna element group 11 outputs the received radio wave to the transmission / reception module 12. The transmission / reception module 12 converts the input radio wave into a direct current (DC) signal and outputs this direct current signal to the control computer 13. The control computer 13 detects the radiation characteristic of the near field of the antenna based on the input DC signal.
【０００９】上記構成において、上記被測定アンテナ
（図示せず）の近傍界測定を行う場合には、先ず、枠体
１０を被測定アンテナ（図示せず）に対向配置する。こ
こで、枠体１０のアンテナ素子群１１は、そのアンテナ
素子１１ａ…がそれぞれ被測定アンテナ（図示せず）に
対向され、このアンテナ素子１１ａ…が制御計算機１３
を介して、例えば直並列状に順に切換駆動される。する
と、アンテナ素子群１１は、そのアンテナ素子１１ａ…
が順に電波を受信して送受信モジュール１２に出力す
る。送受信モジュール１２は、入力した電波を直流信号
に変換して制御計算機１３に出力する。このように制御
計算機１３は、送受信モジュール１２を介して順に被測
定アンテナ（図示せず）の各部からの電波に対応する直
流信号が入力され、ここに被測定アンテナ（図示せず）
の全サンプルデータが取得されてアンテナ近傍界の放射
特性が検出される。In the above structure, when the near field measurement of the antenna to be measured (not shown) is performed, first, the frame body 10 is arranged to face the antenna to be measured (not shown). Here, in the antenna element group 11 of the frame body 10, the antenna elements 11a ... Are respectively opposed to the antenna to be measured (not shown), and the antenna elements 11a.
Are sequentially switched and driven in a serial-parallel manner via the. Then, the antenna element group 11 includes the antenna elements 11a ...
Sequentially receives the radio waves and outputs them to the transmission / reception module 12. The transmission / reception module 12 converts the input radio wave into a DC signal and outputs it to the control computer 13. In this way, the control computer 13 receives the DC signals corresponding to the radio waves from the respective parts of the antenna to be measured (not shown) in order via the transmission / reception module 12, and the antenna to be measured (not shown) is input here.
All the sample data of is acquired and the radiation characteristic in the near field of the antenna is detected.
【００１０】このように、上記アンテナ近傍界測定装置
は、複数のアンテナ素子１１ａ…が直並列状に配列され
たアンテナ素子群１１を被測定アンテナ（図示せず）に
対向配置して、この複数のアンテナ素子１１ａ…を順に
切換駆動されることにより、被測定アンテナ（図示せ
ず）の各部からの電波を受信し、この各アンテナ素子１
１ａ…で受信した電波を直流信号に変換して、この直流
信号に基づいて被測定アンテナ（図示せず）の全サンプ
リングデータを取得してアンテナ近傍界の放射特性を検
出するように構成した。As described above, in the antenna near-field measuring apparatus, the antenna element group 11 in which a plurality of antenna elements 11a are arranged in series and parallel is arranged to face an antenna to be measured (not shown), and the plurality of antenna elements 11a are arranged. Of the antenna under test (not shown) are received by sequentially switching and driving the antenna elements 11a.
The radio wave received by 1a ... Is converted into a DC signal, all sampling data of the antenna to be measured (not shown) is acquired based on this DC signal, and the radiation characteristic in the near field of the antenna is detected.
【００１１】これによれば、アンテナ素子群１１のアン
テナ素子１１ａ…を電気的に切換駆動するだけで、従来
のように機械的走査機構を備えることがなくなることに
より、簡単な構成で、被測定アンテナ（図示せず）の全
サンプリングデータの取得が実現される。また、アンテ
ナ素子群１１のアンテナ素子１１ａ…を電気的に走査す
るだけで、迅速にして、高精度な全サンプリングデータ
の取得が実現されるという効用を有する。According to this, by simply electrically switching and driving the antenna elements 11a of the antenna element group 11, there is no need to provide a mechanical scanning mechanism as in the prior art, so that the measurement can be performed with a simple structure. Acquisition of all sampling data of the antenna (not shown) is realized. Further, there is an advantage that it is possible to quickly and highly accurately acquire all sampling data simply by electrically scanning the antenna elements 11a ... Of the antenna element group 11.
【００１２】なお、上記実施例では、電波を直流信号に
変換する電波変換手段として、送受信モジュール１２を
用いて構成した場合で説明したが、これに限ることな
く、少なくとも電波受信機能を備えた受信モジュールを
用いて構成することが可能である。In the above embodiment, the transmission / reception module 12 is used as the electric wave converting means for converting an electric wave into a direct current signal. However, the present invention is not limited to this. It can be configured using modules.
【００１３】また、被測定アンテナとしては、宇宙航行
体に搭載されるものに限ることなく、地上において、使
用される大開口アンテナ等のアンテナ近傍界測定に適用
することも可能である。よって、この発明は上記実施例
に限ることなく、その他、この発明の要旨を逸脱しない
範囲で種々の変形を実施し得ることは勿論である。Further, the antenna to be measured is not limited to the one mounted on a spacecraft, but it can be applied to the near field antenna measurement such as a large aperture antenna used on the ground. Therefore, the present invention is not limited to the above-described embodiments, and it is needless to say that various modifications can be made without departing from the scope of the present invention.
【００１４】[0014]
【発明の効果】以上詳述したように、この発明によれ
ば、簡易な構成で、且つ高精度にして、迅速なアンテナ
近傍界測定を実現し得るようにしたアンテナ近傍界測定
装置を提供することができる。As described in detail above, according to the present invention, there is provided an antenna near-field measuring device which has a simple structure and is highly accurate, and is capable of realizing rapid antenna near-field measurement. be able to.
【図１】この発明の一実施例に係るアンテナ近傍界測定
装置を示した図。FIG. 1 is a diagram showing an antenna near field measuring apparatus according to an embodiment of the present invention.
【図２】従来のアンテナ近傍界測定装置を示した図。FIG. 2 is a diagram showing a conventional antenna near-field measuring device.
１０…枠体。 １１…アンテナ素子群。 １１ａ…アンテナ素子。 １２…送受信モジュール。 １３…制御計算機。 10 ... Frame body. 11 ... Antenna element group. 11a ... Antenna element. 12 ... Transceiver module. 13 ... Control computer.
Claims (1)
アンテナ素子が直並列状に配列されてなるアンテナ素子
群と、 このアンテナ素子群のアンテナ素子で受信した電波を直
流信号に変換する電波変換手段と、 前記アンテナ素子群の複数のアンテナ素子を切換駆動し
て該アンテナ素子で受信した電波を前記電波変換手段で
直流信号に変換し、この直流信号に基づいて前記被測定
アンテナの近傍界の放射特性を検出する制御検出手段と
を具備したアンテナ近傍界測定装置。1. An antenna element group in which a plurality of antenna elements arranged to face an antenna to be measured are arranged in series and parallel, and radio wave conversion for converting a radio wave received by the antenna elements of the antenna element group into a DC signal. Means and a plurality of antenna elements of the antenna element group are switched and driven, and the radio wave received by the antenna elements is converted into a direct current signal by the radio wave converting means, and based on the direct current signal, the near field of the measured antenna is measured. An antenna near-field measuring device comprising a control detecting means for detecting a radiation characteristic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5949295A JPH08262084A (en) | 1995-03-17 | 1995-03-17 | Measuring device of field in proximity to antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5949295A JPH08262084A (en) | 1995-03-17 | 1995-03-17 | Measuring device of field in proximity to antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08262084A true JPH08262084A (en) | 1996-10-11 |
Family
ID=13114851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5949295A Pending JPH08262084A (en) | 1995-03-17 | 1995-03-17 | Measuring device of field in proximity to antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08262084A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014163716A (en) * | 2013-02-22 | 2014-09-08 | Mitsubishi Electric Corp | Antenna measurement device |
-
1995
- 1995-03-17 JP JP5949295A patent/JPH08262084A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014163716A (en) * | 2013-02-22 | 2014-09-08 | Mitsubishi Electric Corp | Antenna measurement device |
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