JPH06242163A - Antenna measuring device - Google Patents
Antenna measuring deviceInfo
- Publication number
- JPH06242163A JPH06242163A JP3026593A JP3026593A JPH06242163A JP H06242163 A JPH06242163 A JP H06242163A JP 3026593 A JP3026593 A JP 3026593A JP 3026593 A JP3026593 A JP 3026593A JP H06242163 A JPH06242163 A JP H06242163A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- probes
- probe
- measuring device
- detecting
- 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
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、衛星搭載用アンテナ
の電気特性測定などによく用いられる近傍界アンテナ測
定装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a near-field antenna measuring device which is often used for measuring the electrical characteristics of satellite antennas.
【０００２】[0002]
【従来の技術】図５は従来の平面走査型近傍界アンテナ
測定装置を示す図であり、図において１はプローブ、２
はプローブを平面内の２軸、図ではＸ軸とＹ軸に沿って
動かすためのスキャナ、３はプローブ１で検出した電波
を受信するための受信装置、４はプローブの位置を検出
するための位置検出装置、５は受信装置からの受信信号
と位置検出装置からの位置情報とを処理してアンテナの
遠方界放射パターンを求めるデータ処理装置、６は供試
アンテナ、７は供試アンテナをΘ軸、Φ軸まわりに回転
させるアンテナ回転台である。2. Description of the Related Art FIG. 5 is a diagram showing a conventional plane-scanning type near-field antenna measuring apparatus.
Is a scanner for moving the probe along two axes in a plane, X-axis and Y-axis in the figure, 3 is a receiving device for receiving the radio wave detected by the probe 1, and 4 is a position for detecting the position of the probe. A position detecting device, 5 is a data processing device for processing a received signal from the receiving device and position information from the position detecting device to obtain a far field radiation pattern of the antenna, 6 is a test antenna, and 7 is a test antenna. It is an antenna turntable that rotates around the axis and Φ axis.
【０００３】次に動作について説明する。図５の平面走
査型近傍界アンテナ測定装置は、パラボラアンテナなど
のように指向性の鋭いアンテナの放射特性を測定するの
によく用いられるもので、衛星搭載用アンテナのように
清浄な雰囲気中での測定が要求される場合には、屋外で
の測定が困難なため、このような近傍界アンテナ測定装
置が用いられる。次に供試アンテナ６を送信アンテナと
して説明する。供試アンテナ６から前方に放射された電
波はプローブ１によって検出されるがプローブ１はスキ
ャナ２により平面内を動くので供試アンテナ６のビーム
幅に対応する所望の平面領域内のプローブの各位置にお
ける電磁界を測定し、この電磁界データをデータ処理装
置５でフリー変換処理することにより供試アンテナ６の
遠方における放射パターンを求めることができる。これ
が平面走査型近傍界アンテナ測定の原理である。Next, the operation will be described. The plane-scanning near-field antenna measuring device of FIG. 5 is often used to measure the radiation characteristics of antennas having a sharp directivity such as a parabolic antenna, and is used in a clean atmosphere such as a satellite-mounted antenna. When the measurement of is required, it is difficult to perform the measurement outdoors, and thus such a near-field antenna measuring device is used. Next, the test antenna 6 will be described as a transmitting antenna. The radio wave radiated forward from the sample antenna 6 is detected by the probe 1, but the probe 1 moves in the plane by the scanner 2. Therefore, each position of the probe in the desired plane area corresponding to the beam width of the sample antenna 6 is detected. By measuring the electromagnetic field at, and subjecting this electromagnetic field data to free conversion processing by the data processing device 5, the radiation pattern in the distance of the test antenna 6 can be obtained. This is the principle of planar scanning near-field antenna measurement.
【０００４】また近傍界アンテナ測定法としては上記の
平面走査型のほかに図５中に指定されている各軸の組み
合わせにより、例えばブローブ１をＹ軸に沿って動かし
供試アンテナをΘ軸回りに回転させて電磁界を測定する
ものを円筒走査型近傍界アンテナ測定法と呼んでおり、
またプローブを固定してΘ軸とΦ軸まわりに供試アンテ
ナを回転させるものを球面走査型とよんでいる。平面走
査型、円筒走査型、球面走査型それぞれ、測定した近傍
電磁界を遠方放射パターンに変換する数学的処理方法が
異なる。また供試アンテナによってそれぞれの方法を使
い分ける必要がある。例えば大きな平面アンテナが供試
アンテナの場合には供試アンテナを回転させることが困
難なので供試アンテナを固定してプローブのみを動かす
平面走査型が適している。一方、無指向性アンテナに対
しては球面走査型のように全空間にわたって電磁界を測
定できる方法を採用しなければ所望の放射パターンが得
られない。As the near-field antenna measuring method, in addition to the above-mentioned plane scanning type, a combination of axes designated in FIG. 5 is used, for example, the probe 1 is moved along the Y axis to rotate the test antenna around the Θ axis. Measuring the electromagnetic field by rotating it in the direction of is called the cylindrical scanning type near field antenna measurement method.
Also, the one that fixes the probe and rotates the sample antenna around the Θ and Φ axes is called the spherical scanning type. The planar scanning type, the cylindrical scanning type, and the spherical scanning type are different in the mathematical processing method for converting the measured near electromagnetic field into a far radiation pattern. It is necessary to use each method properly depending on the antenna under test. For example, when a large flat antenna is the test antenna, it is difficult to rotate the test antenna, and thus the flat scan type in which the test antenna is fixed and only the probe is moved is suitable. On the other hand, for an omnidirectional antenna, a desired radiation pattern cannot be obtained unless a method capable of measuring an electromagnetic field over the entire space, such as a spherical scanning type, is adopted.
【０００５】[0005]
【発明が解決しようとする課題】従来の近傍界アンテナ
測定装置は以上のように構成されているので大型アンテ
ナの測定では所望の全空間にわたって電磁界を測定する
のに時間がかかり、たとえば６ｍ×６ｍの平面走査では
４０ＧＨｚ帯での測定に約６時間かかった例がある。こ
れほど長時間になると能率が悪いばかりでなく測定の途
中での装置の変動、故障などの影響をうけやすくなり、
近傍界アンテナ測定装置のもつ問題点となっていた。Since the conventional near-field antenna measuring device is constructed as described above, it takes a long time to measure an electromagnetic field over a desired whole space when measuring a large antenna, and for example, 6 m × There is an example in which it takes about 6 hours to measure in the 40 GHz band in a 6 m plane scan. Such a long time not only results in poor efficiency, but also makes it more susceptible to device fluctuations and failures during measurement.
This has been a problem with the near-field antenna measuring device.
【０００６】この発明は、上記のような課題を解決する
ためになされたもので、短時間でデータ取得を行い、能
率をあげると同時に測定の信頼性も向上させることを目
的とする。The present invention has been made in order to solve the above problems, and an object thereof is to obtain data in a short time to improve the efficiency and at the same time improve the reliability of measurement.
【０００７】[0007]
【課題を解決するための手段】この発明にかかるアンテ
ナ測定装置は複数のプローブを備えることにより、測定
時間を短縮するものである。平面走査型及び円筒走査型
の測定の場合は、同期して動く複数のプローブを備え、
球面走査型の測定では固定された複数のプローブを備え
るものである。The antenna measuring device according to the present invention is provided with a plurality of probes to shorten the measuring time. In the case of planar scanning type and cylindrical scanning type measurement, a plurality of probes that move in synchronization are provided,
In the spherical scanning type measurement, a plurality of fixed probes are provided.
【０００８】[0008]
【作用】この発明にかかるアンテナ測定装置は複数のプ
ローブを備え、それぞれのプローブが独立にデータを取
得するため例えば２台のプローブを備えれば測定時間は
１／２にすることができる。The antenna measuring device according to the present invention comprises a plurality of probes, and each probe independently obtains data, so that the measuring time can be halved if, for example, two probes are provided.
【０００９】[0009]
実施例１．以下、この発明の実施例について説明する。
図１において、１ａ，１ｂはプローブ、３ａ，３ｂはそ
れぞれプローブ１ａ，１ｂからの電波を受信する受信
機、その他は上記説明と同じである。Example 1. Examples of the present invention will be described below.
In FIG. 1, 1a and 1b are probes, 3a and 3b are receivers for receiving radio waves from the probes 1a and 1b, respectively, and others are the same as those described above.
【００１０】上記のように構成されたアンテナ測定装置
において、たとえばＸ軸に沿ってプローブを動かしてデ
ータを取得する場合を考えれば、それぞれのプローブは
半分の平面を走査するだけで全平面のデータが取得でき
る。プローブの個数を増やせばそれだけ測定時間を短縮
できることになるが、プローブどうしが接近しすぎると
プローブ間での電磁干渉が発生し、プローブの放射パタ
ーンをゆがめるため測定精度の劣化を引き起こす場合が
あるので、プローブ間の結合量を、所望の測定精度解析
から決まる値以下にするよう注意が必要である。通常−
４０ＤＢ以下程度にすれば実用的には問題ないと思われ
る。In the antenna measuring apparatus configured as described above, considering the case where the probe is moved along the X-axis to acquire data, for example, each probe scans only one half plane and the data of all planes is scanned. Can be obtained. If the number of probes is increased, the measurement time can be shortened accordingly.However, if the probes are too close to each other, electromagnetic interference occurs between the probes, which may distort the radiation pattern of the probes, which may cause deterioration of measurement accuracy. Care must be taken to keep the amount of binding between the probes below the value determined by the desired analysis of measurement accuracy. Usually-
It seems that there is no practical problem if it is set to about 40 DB or less.
【００１１】プローブで検出された電磁界はそのプロー
ブの位置情報とともに数学的処理を施すのでそれぞれの
プローブに対応するし受信信号の位置情報とを知る必要
がある。受信装置は２台必要であるが位置情報について
は２台のプローブの相対位置関係をあらかじめ定めてお
けば基準となる一方の位置情報から他方の位置を知るこ
とができるのでその情報をデータ処理装置にて処理する
ことが可能である。Since the electromagnetic field detected by the probe is subjected to mathematical processing together with the position information of the probe, it is necessary to know the position information of the received signal corresponding to each probe. Two receivers are required, but regarding the positional information, if the relative positional relationship between the two probes is determined in advance, it is possible to know the other position from the reference one positional information, so that information is used as a data processing device. It is possible to process in.
【００１２】実施例２．図２は他の実施例を示す図で、
１から７までは上記実施例と同じであり、８は複数のプ
ローブと１台の受信装置との接続を切り替えるスイッチ
である。このスイッチを備えることにより、ある位置に
おける複数のプローブからの電磁界データを一台の受信
機で受信することができ、装置がきわめて簡略化でき
る。Example 2. FIG. 2 is a diagram showing another embodiment,
1 to 7 are the same as in the above embodiment, and 8 is a switch for switching the connection between a plurality of probes and one receiving device. By providing this switch, electromagnetic field data from a plurality of probes at a certain position can be received by one receiver, and the device can be extremely simplified.
【００１３】実施例３．図３はこの発明の他の実施例を
示すもので円筒走査型アンテナ測定装置の場合である。
１ａ，１ｂがプローブであり、図では２台の場合を示し
ている。９は回転台の回転角度信号を出力する角度検出
装置である。円筒走査型の場合にはプローブはＹ軸に沿
って動き、供試アンテナはΘ軸回りに回転する。円筒走
査型の場合にも２台のプローブを用いることにより測定
時間を１／２に短縮することができ能率向上と同時に装
置の経時変動に起因する誤差要因を軽減できるので測定
精度の向上にも寄与する。図ではスイッチにより１台の
受信装置を用いる場合を示している。 実施例４．図４は他の実施例として球面走査型アンテナ
測定装置を示している。プローブ１ａ，１ｂを供試アン
テナ６をはさんで対向する位置に設置すればΦ軸回りの
回転は１台のプローブの場合に比べて１／２ですむ。も
ちろん９０度ずつ４台のプローブを設置すれば１／４の
回転ですむ。Embodiment 3. FIG. 3 shows another embodiment of the present invention, which is a case of a cylindrical scanning type antenna measuring device.
1a and 1b are probes, and the figure shows the case of two probes. Reference numeral 9 denotes an angle detection device that outputs a rotation angle signal of the rotary base. In the case of the cylindrical scanning type, the probe moves along the Y axis and the antenna under test rotates about the Θ axis. Even in the case of the cylindrical scanning type, by using two probes, the measurement time can be shortened to 1/2 and the efficiency factor can be improved and at the same time, the error factor due to the time variation of the device can be reduced, which also improves the measurement accuracy. Contribute. In the figure, the case where one receiving device is used by the switch is shown. Example 4. FIG. 4 shows a spherical scanning antenna measuring device as another embodiment. If the probes 1a and 1b are installed at positions facing each other with the antenna 6 under test, the rotation around the Φ axis will be 1/2 compared with the case of one probe. Of course, if you install four probes 90 degrees each, it will only need 1/4 rotation.
【００１４】[0014]
【発明の効果】以上のようにこの発明によれば複数個の
プローブで同時に電磁界データを取得でき測定時間を１
／２以下とすることができ能率の向上だけでなく、装置
の安定度に起因する精度劣化を軽減することができ従来
の近傍界アンテナ測定装置のもつ問題点を改善すること
ができる。As described above, according to the present invention, the electromagnetic field data can be simultaneously acquired by a plurality of probes, and the measurement time can be reduced to one.
It can be set to / 2 or less, and not only the efficiency can be improved, but also the accuracy deterioration due to the stability of the device can be reduced, and the problems of the conventional near-field antenna measuring device can be improved.
【００１５】また複数のプローブに対してスイッチによ
る切り替えを利用して一台の受信装置を共用することに
より、装置をより簡略化でき、信頼性も向上する。Further, by sharing a single receiving device by utilizing switching by a switch for a plurality of probes, the device can be further simplified and reliability is improved.
【図１】この発明の実施例１によるアンテナ測定装置を
示す構成図である。FIG. 1 is a configuration diagram showing an antenna measuring device according to a first embodiment of the present invention.
【図２】この発明の実施例２によるアンテナ測定装置を
示す構成図である。FIG. 2 is a configuration diagram showing an antenna measuring device according to a second embodiment of the present invention.
【図３】この発明の実施例３によるアンテナ測定装置を
示す構成図である。FIG. 3 is a configuration diagram showing an antenna measuring device according to a third embodiment of the present invention.
【図４】この発明の実施例４によるアンテナ測定装置を
示す構成図である。FIG. 4 is a configuration diagram showing an antenna measuring device according to a fourth embodiment of the present invention.
【図５】従来のアンテナ測定装置の構成図である。FIG. 5 is a configuration diagram of a conventional antenna measuring device.
１ プローブ ２ スキャナ ３ 受信装置 ４ 位置検出装置 ５ データ処理装置 ６ 供試アンテナ ７ 回転台 ８ スイッチ ９ 角度検出装置 DESCRIPTION OF SYMBOLS 1 probe 2 scanner 3 receiving device 4 position detecting device 5 data processing device 6 test antenna 7 turntable 8 switch 9 angle detecting device
Claims (3)
試アンテナと、平面内の直交する２軸に平行に動くブロ
ーブと、上記プローブにより検出された電波を受信する
受信装置と、前記プローブの位置を検出する位置検出装
置と、前記受信装置からの受信信号と位置検出装置から
の位置情報とを処理するデータ処理装置とから構成され
る平面走査型近傍界アンテナ測定装置において、上記プ
ローブ及び受信装置の組み合わせを２組以上持ち、かつ
それぞれが同時に作動することを特徴とするアンテナ測
定装置。1. A test antenna that rotates around a required axis on a turntable, a probe that moves in parallel with two orthogonal axes in a plane, a receiver that receives radio waves detected by the probe, A plane scanning near-field antenna measuring device comprising a position detecting device for detecting the position of a probe and a data processing device for processing a received signal from the receiving device and position information from the position detecting device, wherein the probe And an antenna measuring device having two or more combinations of receiving devices, each of which operates simultaneously.
ーブと、一つの受信装置と、上記二つのプローブと受信
装置との間に設けられ、プローブを切り替えるスイッチ
と、プローブの位置を検出する位置検出装置と、供試ア
ンテナを所要の軸まわりに回転させる回転台の角度を検
出する角度検出装置と、上記受信装置、位置検出装置、
及び角度検出装置の出力を処理するデータ処理装置とを
備えたアンテナ測定装置。2. Two probes provided for the antenna under test, one receiving device, a switch provided between the two probes and the receiving device, for switching the probe, and detecting the position of the probe. A position detecting device, an angle detecting device for detecting an angle of a turntable for rotating the test antenna around a required axis, the receiving device, the position detecting device,
And a data processing device for processing the output of the angle detection device.
プローブと、この二つのプローブの受信装置に対する接
続を切換えるスイッチと、回転台の回転角度を検出する
角度検出装置と、受信装置及び角度検出装置につながる
データ処理装置とを備えたアンテナ測定装置。3. Two probes facing each other with a test antenna in between, a switch for switching connection of these two probes to a receiver, an angle detector for detecting a rotation angle of a turntable, a receiver and an angle. An antenna measuring device comprising a data processing device connected to a detecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3026593A JPH06242163A (en) | 1993-02-19 | 1993-02-19 | Antenna measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3026593A JPH06242163A (en) | 1993-02-19 | 1993-02-19 | Antenna measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06242163A true JPH06242163A (en) | 1994-09-02 |
Family
ID=12298880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3026593A Pending JPH06242163A (en) | 1993-02-19 | 1993-02-19 | Antenna measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06242163A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001165975A (en) * | 1999-12-10 | 2001-06-22 | Mitsubishi Electric Corp | Apparatus and method for measuring antenna |
| WO2001084165A1 (en) * | 2000-04-28 | 2001-11-08 | Advantest Corporation | Field distribution measuring method and device |
| JP2011099856A (en) * | 2009-11-04 | 2011-05-19 | Astrium Gmbh | Method and device for measuring characteristic of radiation field |
| JP2017058263A (en) * | 2015-09-17 | 2017-03-23 | 有限会社Ｎａｚｃａ | Antenna evaluation device and antenna evaluation method |
| CN106872801A (en) * | 2017-04-02 | 2017-06-20 | 深圳市通用测试***有限公司 | A kind of near field test system |
-
1993
- 1993-02-19 JP JP3026593A patent/JPH06242163A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001165975A (en) * | 1999-12-10 | 2001-06-22 | Mitsubishi Electric Corp | Apparatus and method for measuring antenna |
| WO2001084165A1 (en) * | 2000-04-28 | 2001-11-08 | Advantest Corporation | Field distribution measuring method and device |
| US6804617B2 (en) | 2000-04-28 | 2004-10-12 | Advantest Corporation | Field distribution measuring method and device |
| JP2011099856A (en) * | 2009-11-04 | 2011-05-19 | Astrium Gmbh | Method and device for measuring characteristic of radiation field |
| JP2017058263A (en) * | 2015-09-17 | 2017-03-23 | 有限会社Ｎａｚｃａ | Antenna evaluation device and antenna evaluation method |
| CN106872801A (en) * | 2017-04-02 | 2017-06-20 | 深圳市通用测试***有限公司 | A kind of near field test system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7167133B2 (en) | Electromagnetic wave measuring apparatus | |
| JP6337030B2 (en) | Massive-MIMO antenna measuring apparatus and directivity measuring method thereof | |
| US20130141287A1 (en) | Apparatus for Measuring a Radiation Pattern of an Active Antenna Arrangement | |
| US11879926B2 (en) | Method, device, system and terminal for measuring total radiation power of array antenna and computer storage medium | |
| Williams et al. | The bi-polar planar near-field measurement technique, Part I: implementation and measurement comparisons | |
| CN211061611U (en) | Vehicle-mounted radar testing device | |
| JP4320441B2 (en) | Array antenna calibration method and calibration apparatus | |
| GB2232843A (en) | Direction finder rotatable in azimuth | |
| JP6678554B2 (en) | Antenna measuring device | |
| US5419631A (en) | Three-axis motion tracking interferometer for measurement and correction of positional errors between an article under test and a measurement probe | |
| US4740790A (en) | Antenna polarization measuring methods | |
| JPH06242163A (en) | Antenna measuring device | |
| JPH0130112B2 (en) | ||
| JP4578603B2 (en) | Antenna measuring apparatus and antenna measuring method | |
| JP2002243783A (en) | Antenna characteristics measuring device using neighboring field measurement and its method | |
| Viikari et al. | A feed scanning based APC technique for compact antenna test ranges | |
| RU2744320C1 (en) | Method and system for testing of antenna with multiple radiation elements | |
| CN107991657B (en) | Beam alignment system for dual-beam antenna feeder | |
| US3936829A (en) | Method of radio navigation | |
| Bennett et al. | Near-field measurements on plane-polar facility | |
| EP4354765A1 (en) | Method, apparatus and computer program for testing a multi-receiver device-under-test (dut) | |
| Grattan | Compact-scan, plane-polar microwave holographic technique for reflector antenna profile measurement | |
| JP2002181922A (en) | Method and apparatus for measurement of radar cross- sectional area, as well as recording medium with their recorded control program recorded thereon | |
| JPS60256071A (en) | Apparatus for measuring vicinal electric field | |
| Beeckman | Analysis of phase errors in antenna-measurements applications to phase-pattern corrections and phase-centre determination |