JPH03212009A - Adjustment system for coupling quantity of dielectric resonator - Google Patents
Adjustment system for coupling quantity of dielectric resonatorInfo
- Publication number
- JPH03212009A JPH03212009A JP782790A JP782790A JPH03212009A JP H03212009 A JPH03212009 A JP H03212009A JP 782790 A JP782790 A JP 782790A JP 782790 A JP782790 A JP 782790A JP H03212009 A JPH03212009 A JP H03212009A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- coupling
- dielectric resonators
- dielectric
- high frequency
- 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
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Description
【発明の詳細な説明】
〔概要］
複数の誘電体共振器を磁界結合させて構成するマイクロ
波の濾波器に関し、
濾波器を構成する複数の誘電体共振器の間の結合量の円
滑な自動調整を可能とする調整方式を目的とし、
各誘電体共振器の間を結合する高周波磁界に垂直に中心
軸が位置するフェライト棒を設け、該フェライト棒の中
心軸の方向に可変の静磁界Ｈ０を印加して前記誘電体共
振器の間の結合量を調整するように構成する。[Detailed Description of the Invention] [Summary] Regarding a microwave filter configured by magnetically coupling a plurality of dielectric resonators, the present invention relates to a microwave filter configured by magnetically coupling a plurality of dielectric resonators, and the present invention provides smooth automatic adjustment of the amount of coupling between the plurality of dielectric resonators constituting the filter. Aiming at an adjustment method that enables adjustment, a ferrite rod whose center axis is perpendicular to the high-frequency magnetic field coupling between each dielectric resonator is provided, and a variable static magnetic field H0 is applied in the direction of the center axis of the ferrite rod. is applied to adjust the amount of coupling between the dielectric resonators.
［産業上の利用分野］
本発明は複数の誘電体共振器を磁界結合させて構成する
マイクロ波の濾波器に関する。[Industrial Field of Application] The present invention relates to a microwave filter constructed by magnetically coupling a plurality of dielectric resonators.
マイクロ波の濾波器として誘電体共振器を複数個並べて
磁界結合させ、規定の濾波特性を得るには、共振器相互
の結合量の微調整が円滑に行われる必要がある。In order to obtain prescribed filtering characteristics by arranging a plurality of dielectric resonators as a microwave filter and magnetically coupling them, it is necessary to smoothly finely adjust the amount of coupling between the resonators.
［従来の技術〕
従来の誘電体共振器の結合量の調整方式は、第２図に示
す如り、ＴＥｏ、型の誘電体共振器１，２の結合に係わ
っている高周波磁界３のループが含まれる平面に対して
垂直な方向に、その中心軸６１が位置する導体棒６を挿
入する。そして其の挿入長を変えて誘電体共振器Ｌ２の
結合量を最適になるように二周整していた。[Prior art] As shown in Fig. 2, the conventional method for adjusting the amount of coupling of a dielectric resonator is to A conductor rod 6 is inserted with its central axis 61 located in a direction perpendicular to the included plane. Then, by changing the insertion length, two rounds were adjusted to optimize the coupling amount of the dielectric resonator L2.
（発明が解決しようとする課題〕
然しながら、導体棒６の挿入長を変えるには、図示しな
いが、ネジ機構などの機械的な可動部を必要とする。機
械的な可動部は、動きの滑らかさや、調整層のロック時
の挿入長の微小変化という問題があって、円滑な自動調
整には適していない。(Problem to be Solved by the Invention) However, in order to change the insertion length of the conductor rod 6, a mechanical movable part such as a screw mechanism is required (not shown). There is a problem of minute changes in the insertion length when the sheath and adjustment layer are locked, making it unsuitable for smooth automatic adjustment.
本発明の課題は、円滑な自動調整に適した誘電体共振器
の結合量の調整方式の提供にある。An object of the present invention is to provide a method for adjusting the amount of coupling of a dielectric resonator that is suitable for smooth automatic adjustment.
［課題を解決するための手段］
この課題は、第１図に示す如く、濾波器を構成する複数
のＴＥ、、 型の誘電体共振器１，２の結合に係わっ
ている高周波磁界３の方向に対して垂直な方向に、その
中心軸４１が位置するフェライト棒４を挿入し、該フェ
ライト棒４の中心軸４１の方向に、可変の静磁界５を印
加して誘電体共振器１，２０間の結合を調整するように
した本発明によって解決される。[Means for solving the problem] As shown in FIG. A ferrite rod 4 whose central axis 41 is located in a direction perpendicular to This problem is solved by the present invention, which adjusts the coupling between the two.
本発明の誘電体共振器の結合量の調整方式の基本構成を
示す第１図の原理図において、■、２は、互に磁界結合
してマイクロ波の濾波器を構成するＴＥｏ＋ 型の誘
電体共振器である。In the principle diagram of FIG. 1 showing the basic configuration of the method for adjusting the coupling amount of a dielectric resonator of the present invention, ① and 2 are TEo+ type dielectrics that are magnetically coupled to each other to constitute a microwave filter. It is a resonator.
３は、誘電体共振器１，２の結合に係わっている高周波
磁界である。3 is a high frequency magnetic field that is involved in coupling the dielectric resonators 1 and 2.
４は、高周波磁界３の方向に対して垂直な方向にその中
心軸４１が位置するフェライト棒である。4 is a ferrite rod whose central axis 41 is located in a direction perpendicular to the direction of the high frequency magnetic field 3.
５は、フェライト棒４の中心軸４１の方向に印加する可
変の静磁界である。5 is a variable static magnetic field applied in the direction of the central axis 41 of the ferrite rod 4.
そして可変の静磁界５をフェライト棒４の中心軸４１の
方向に印加し、誘電体共振器１，２の結合が最適となる
よう調整するように構成する。Then, a variable static magnetic field 5 is applied in the direction of the central axis 41 of the ferrite rod 4 to adjust the coupling between the dielectric resonators 1 and 2 to be optimal.
本発明では、第１回に示す如く、マイクロ波の濾波器を
構成する誘電体共振器１．２の間に挿入されるフェライ
ト棒４は、その中心軸−４１が、誘電体共振器１．２を
磁界結合させる高周波磁界３の方向に対して垂直な方向
に位置し該中心軸４１の方向に、可変の静磁界５のＨｏ
が印加されている。In the present invention, as shown in the first part, the ferrite rod 4 inserted between the dielectric resonators 1.2 constituting a microwave filter has its central axis -41 aligned with the dielectric resonators 1.2. Ho of a variable static magnetic field 5 is located in the direction perpendicular to the direction of the high frequency magnetic field 3 that magnetically couples the
is applied.
その中心軸４１の方向に可変の静磁界５のＨｏを印加さ
れたフェライト棒４は、中心軸４１に垂直の方向の高周
波磁界３と交わると、磁界のファラデー回転を生じる。When the ferrite rod 4 to which a variable static magnetic field 5 Ho is applied in the direction of its central axis 41 intersects with the high frequency magnetic field 3 in the direction perpendicular to the central axis 41, Faraday rotation of the magnetic field occurs.
そして高周波磁界３は、静磁界５のＨｏを回転軸として
、静磁界Ｈ０，フェライト棒４の材料定数および高周波
磁界３の周波数ｆから決まる角度だけ回転する。高周波
磁界３が、静磁界Ｈ０を回転軸として成る角度だけ回転
すると、その回転角に応じて、誘電体共振器１と２の磁
界結合の結合量が変化することになる。従って本発明の
誘電体共振器の結合量の調整方式は、円滑な自動調整に
適したものとなり問題は解決される。The high frequency magnetic field 3 rotates by an angle determined from the static magnetic field H0, the material constant of the ferrite rod 4, and the frequency f of the high frequency magnetic field 3, with Ho of the static magnetic field 5 as the rotation axis. When the high frequency magnetic field 3 rotates by an angle with the static magnetic field H0 as the rotation axis, the amount of magnetic field coupling between the dielectric resonators 1 and 2 changes depending on the rotation angle. Therefore, the method for adjusting the amount of coupling of a dielectric resonator according to the present invention is suitable for smooth automatic adjustment, and the problem is solved.
［実施例〕
第１図の原理図はそのまま、本発明の実施例の誘電体共
振器の結合量の調整方式の構成を示し、既に詳細に説明
したが、フェライト棒４は、例えばＮｉ−Ｚｎ系フェラ
イトあるいはＹＩＧ系フェライトのような高周波に対し
損失係数の小さい材料から成るものであり、静磁界５の
Ｈ８は、電磁石あるいは永久磁石によって発生されるも
のである。[Embodiment] The principle diagram of FIG. 1 shows the configuration of the method for adjusting the coupling amount of the dielectric resonator according to the embodiment of the present invention as it is, and has already been described in detail. It is made of a material with a small loss coefficient for high frequencies, such as YIG-based ferrite or YIG-based ferrite, and H8 of the static magnetic field 5 is generated by an electromagnet or a permanent magnet.
マイクロ波の濾波器を構成する誘電体共振器１と誘電体
共振器２の磁界結合に係わる高周波磁界３が、その中心
軸４１の方向に静磁界Ｈ０を印加されたフェライト棒４
に直角に交わると、高周波磁界３は、静磁界Ｈ０を回転
軸としたファラデー回転を受け、静磁界Ｈ０，フェライ
ト棒４の材料定数および高周波磁界３の周波数ｆから決
まる角度だけ回転する。その結果、誘電体共振器１と誘
電体共振器２の磁界結合の結合量が変化する。したがっ
て、静磁界Ｈ０の強さを、電磁石などによって変えれば
、誘電体共振器ｌと誘電体共振器２の結合量を、マイク
ロ波の濾波器の所要特性が得られるように調整できる事
になり、問題が無い。A high-frequency magnetic field 3 related to magnetic field coupling between a dielectric resonator 1 and a dielectric resonator 2 constituting a microwave filter is applied to a ferrite rod 4 with a static magnetic field H0 in the direction of its central axis 41.
, the high-frequency magnetic field 3 undergoes Faraday rotation with the static magnetic field H0 as the rotation axis, and rotates by an angle determined from the static magnetic field H0, the material constant of the ferrite rod 4, and the frequency f of the high-frequency magnetic field 3. As a result, the amount of magnetic field coupling between the dielectric resonators 1 and 2 changes. Therefore, by changing the strength of the static magnetic field H0 using an electromagnet, etc., the amount of coupling between the dielectric resonators 1 and 2 can be adjusted to obtain the required characteristics of the microwave filter. , no problem.
（発明の効果〕
以上説明した如く、本発明によれば、複数の誘電体共振
器の間の結合量の調整を電気的に行う事が出来て、誘電
体フィルタの調整を自動化できる効果が得られる。(Effects of the Invention) As explained above, according to the present invention, the amount of coupling between a plurality of dielectric resonators can be electrically adjusted, and the adjustment of a dielectric filter can be automated. It will be done.
第１図は本発明の誘電体共振器の結合量の調整方式の基
本構成を示す原理図、
第２図は従来の誘電体共振器の結合量の調整方式の配置
図である。
図において、１．２は誘電体共振器、３は高周波磁界、
４はフェライト棒、５は静磁界である。
普１齢ヴ砿謹
り一
関FIG. 1 is a principle diagram showing the basic configuration of a method for adjusting the coupling amount of a dielectric resonator according to the present invention, and FIG. 2 is a layout diagram of a conventional method for adjusting the coupling amount of a dielectric resonator. In the figure, 1.2 is a dielectric resonator, 3 is a high-frequency magnetic field,
4 is a ferrite rod, and 5 is a static magnetic field. Pu 1st year Vu Hikari Ichinoseki
Claims (1)
体共振器（１，２）において、該誘電体共振器（１，２
）の間の高周波磁界（３）に垂直に中心軸（４１）が位
置するフェライト棒（４）を設け、該フェライト棒（４
）の中心軸（４１）の方向に可変の静磁界（５）を印加
し前記誘電体共振器（１，２）の間の結合量を調整する
ことを特徴とした誘電体共振器の結合量の調整方式。In a plurality of dielectric resonators (1, 2) coupled to each other by a high frequency magnetic field (3), the dielectric resonators (1, 2)
) A ferrite rod (4) is provided, the central axis (41) of which is located perpendicular to the high frequency magnetic field (3) between the ferrite rods (4).
) A variable static magnetic field (5) is applied in the direction of the central axis (41) of the dielectric resonator (1, 2) to adjust the amount of coupling between the dielectric resonators (1, 2). adjustment method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP782790A JPH03212009A (en) | 1990-01-17 | 1990-01-17 | Adjustment system for coupling quantity of dielectric resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP782790A JPH03212009A (en) | 1990-01-17 | 1990-01-17 | Adjustment system for coupling quantity of dielectric resonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03212009A true JPH03212009A (en) | 1991-09-17 |
Family
ID=11676429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP782790A Pending JPH03212009A (en) | 1990-01-17 | 1990-01-17 | Adjustment system for coupling quantity of dielectric resonator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03212009A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0915528A3 (en) * | 1997-11-07 | 1999-08-11 | Nec Corporation | High frequency filter and frequency characteristics regulation method therefor |
-
1990
- 1990-01-17 JP JP782790A patent/JPH03212009A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0915528A3 (en) * | 1997-11-07 | 1999-08-11 | Nec Corporation | High frequency filter and frequency characteristics regulation method therefor |
| US6127907A (en) * | 1997-11-07 | 2000-10-03 | Nec Corporation | High frequency filter and frequency characteristics regulation method therefor |
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