JPH0720004B2 - Frequency adjustment of dielectric resonator - Google Patents
Frequency adjustment of dielectric resonatorInfo
- Publication number
- JPH0720004B2 JPH0720004B2 JP21172188A JP21172188A JPH0720004B2 JP H0720004 B2 JPH0720004 B2 JP H0720004B2 JP 21172188 A JP21172188 A JP 21172188A JP 21172188 A JP21172188 A JP 21172188A JP H0720004 B2 JPH0720004 B2 JP H0720004B2
- Authority
- JP
- Japan
- Prior art keywords
- resonator
- frequency
- electrode
- dielectric
- case
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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Description
【発明の詳細な説明】 産業上の利用分野 本発明は、TMモードの誘電体共振器の周波数調整方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frequency adjusting method for a TM mode dielectric resonator.
従来の技術 従来の上記共振器は、第５図に示すように、共振器ケー
ス１内の空胴２に誘電体柱３が、その両端面をケース１
と接触させた状態に設けられて製造が完成されている。
なお、共振器ケース１は、その外面に膜状の電極1aが形
成され、この電極1aによりシールドされている。2. Description of the Related Art In the conventional resonator described above, as shown in FIG. 5, a dielectric column 3 is provided in a cavity 2 in a resonator case 1, and both end surfaces of the resonator are made into a case 1.
It has been completed in the state of being provided in contact with.
The resonator case 1 has a film-shaped electrode 1a formed on the outer surface thereof and is shielded by the electrode 1a.
そして、この共振器において共振周波数を調整する必要
がある場合、第６図に示す如く、一旦製造された共振器
の導体ケース１に孔を開けてこの孔に、誘電体又は、金
属等の強磁性体からなる周波数調整具４を挿入し、これ
の回転等を行って調整している。When it is necessary to adjust the resonance frequency in this resonator, as shown in FIG. 6, a hole is made in the conductor case 1 of the resonator once manufactured, and a strong material such as a dielectric or metal is formed in this hole. The frequency adjuster 4 made of a magnetic material is inserted and rotated to adjust the frequency.
発明が解決しようとする課題 しかしながら、上述のような周波数調整具４による調整
では可変周波数範囲が狭い。このため、それ以上の周波
数に調整するときには、誘電体柱３を削って行う必要が
あり、この場合には、作業性が悪く、また、大きな振動
が付与されるために設計上の狂いが生じて電気的特性等
の信頼性が低下するという問題点があった。However, the variable frequency range is narrow in the adjustment by the frequency adjuster 4 as described above. For this reason, when adjusting to a frequency higher than that, it is necessary to grind the dielectric pillars 3, and in this case, workability is poor and large vibrations are applied, which causes a design error. Therefore, there is a problem that reliability such as electrical characteristics is deteriorated.
本発明は、このような問題点を解決し、共振周波数の可
変範囲を大きくとることができ、かつ容易に周波数調整
ができ、加えて電気的特性等の信頼性が高い誘電体共振
器を周波数調整することにより完成品として得ることを
可能とする誘電体共振器の周波数調整方法を提供するこ
とを目的とする。The present invention solves such a problem, can set a large variable range of the resonance frequency, and can easily adjust the frequency, and in addition, a dielectric resonator having high reliability such as electrical characteristics can be used. It is an object of the present invention to provide a method for adjusting the frequency of a dielectric resonator that can be obtained as a finished product by adjusting the frequency.
課題を解決するための手段 本発明に係る誘電体共振器の周波数調整方法は、外面に
電極が形成されてなる共振器ケース内の空胴に、誘電体
柱を設けた周波数調整前のTMモード誘電体共振器におい
て、前記共振器ケースの電極の一部を切削することによ
り共振周波数を調整することを特徴とする。Means for Solving the Problems A frequency adjusting method for a dielectric resonator according to the present invention is a TM mode before frequency adjustment in which a dielectric column is provided in a cavity inside a resonator case in which electrodes are formed on an outer surface. In the dielectric resonator, the resonance frequency is adjusted by cutting a part of the electrode of the resonator case.
また、内面に電極が形成され、一部に孔を有した共振器
ケース内の空胴に、誘電体柱を設けたTMモード誘電体共
振器においては、前記共振器ケースの孔から露出してい
る電極の一部を切削することにより共振周波数を調整す
ることを特徴とする。Further, in a TM mode dielectric resonator in which an electrode is formed on the inner surface and a dielectric column is provided in a cavity inside the resonator case having a hole in a part thereof, it is exposed from the hole of the resonator case. The resonant frequency is adjusted by cutting a part of the existing electrode.
作用 本発明にあっては、周波数調整前の共振器における電極
の一部を切削して共振周波数を調整するので、共振器の
外側から容易に周波数調整を行うことができ、また、切
削時に共振器へ及ぼす振動が小さくなる。Effect In the present invention, since the resonance frequency is adjusted by cutting a part of the electrode in the resonator before frequency adjustment, the frequency can be easily adjusted from the outside of the resonator, and the resonance can be achieved during cutting. The vibration applied to the vessel is reduced.
また、共振器ケースの内面に電極が形成されかつ共振器
ケースの一部に孔を有している共振器においても、その
孔から露出している電極の一部を切削して共振周波数を
調整するので、共振器の外側から周波数調整を行うこと
ができ、また、切削時に共振器へ及ぼす振動が小さくな
る。Even in a resonator in which an electrode is formed on the inner surface of the resonator case and a hole is formed in a part of the resonator case, the resonance frequency is adjusted by cutting a part of the electrode exposed from the hole. Therefore, the frequency can be adjusted from the outside of the resonator, and the vibration exerted on the resonator during cutting is reduced.
実施例 以下本発明を図面に基づき基本的に説明する。Examples The present invention will be basically described below with reference to the drawings.
第１図は本発明に係るTMモード誘電体共振器（完成品）
を示す斜視図であり、第２図は第１図のII-II線による
断面図である。完成したTMモード誘電体共振器は、第１
図に示すように、例えば筒状をした共振器ケース１内の
空胴２に、両端面をケース１と接触させて円柱状の誘電
体柱３が設けられ、共振器ケース１の外面には膜状に電
極1aが形成されており、誘電体柱３の上端面と共振器ケ
ース１を介して対向する電極部分は、共振周波数の調整
用に電極切削部Ａが形成されている。FIG. 1 shows a TM mode dielectric resonator according to the present invention (completed product).
Fig. 2 is a perspective view showing the above, and Fig. 2 is a sectional view taken along line II-II in Fig. 1. The completed TM mode dielectric resonator is the first
As shown in the figure, for example, a cylindrical dielectric column 3 is provided in a cavity 2 inside a cylindrical resonator case 1 with both end surfaces in contact with the case 1, and an outer surface of the resonator case 1 is provided. The electrode 1a is formed in a film shape, and the electrode portion facing the upper end surface of the dielectric column 3 with the resonator case 1 in between is provided with an electrode cutting portion A for adjusting the resonance frequency.
次に、このように構成された本発明器の製造方法につい
て説明する。先ず、共振器ケース１内の空胴２に、両端
面を共振器ケース１と接触させて誘電体柱３が設けら
れ、共振器ケース１の外面には膜状に電極1aが形成され
た周波数調整前の共振器、つまり前記電極切削部Ａが形
成されていない状態のものを製作する。或いは、既にこ
のように製作されているものを準備する。Next, a method for manufacturing the device of the present invention having such a configuration will be described. First, a cavity 2 in the resonator case 1 is provided with a dielectric column 3 with both end surfaces in contact with the resonator case 1, and a film electrode 1a is formed on the outer surface of the resonator case 1 at a frequency. A resonator before adjustment, that is, a resonator in which the electrode cutting portion A is not formed is manufactured. Alternatively, prepare a product already manufactured in this way.
次いで、上記周波数調整前の共振器における電極切削部
Ａを、リュータ等の切削具を用いて切削する。なお、こ
の例では電極切削部Ａを切削しているが、これは周波数
の調整量を大きくすべく選定したのであり、切削を行う
箇所としては調整量に応じて適当な箇所を選定してもよ
い。例えば、前記電極切削部Ａを除く上面部分（切削箇
所が誘電体柱３の下端面と対向する部分としてある場合
には、その対向部分を除く下面部分）或いは側面部分の
電極1aを切削するように選んでもよい。また、周波数調
整については、上記切削箇所の選定による以外に、電極
の切削形状、大きさを変えることによっても行うことが
でき、周波数の調整量に応じて所望の形状，大きさに切
削する。これにより、容量が変化して共振周波数が調整
されたTMモード誘電体共振器が製造される。Next, the electrode cutting part A in the resonator before frequency adjustment is cut using a cutting tool such as a lute. In this example, the electrode cutting portion A is cut, but this is selected so as to increase the adjustment amount of the frequency. Therefore, even if an appropriate place is selected according to the adjustment amount, the cutting is performed. Good. For example, the electrode 1a on the upper surface portion (the lower surface portion excluding the facing portion when the cutting portion faces the lower end surface of the dielectric pillar 3) or the side surface portion excluding the electrode cutting portion A is cut. You may choose to. In addition to frequency selection, the frequency can be adjusted by changing the shape and size of the electrode cut, and the desired shape and size are cut according to the amount of frequency adjustment. As a result, the TM mode dielectric resonator in which the capacitance is changed and the resonance frequency is adjusted is manufactured.
第３図は本発明の他の実施例を示す斜視図であり、第４
図は第３図のIV-IV線による断面図である。これは、電
極1aを共振器ケース１の内面に形成した場合の本発明の
適用例であり、この場合には、例えば図示のように、誘
電体柱３の上端面と対向する共振器ケース１部分は形成
しないで孔Ｂとして残しておき、この孔Ｂの下の電極切
削部Ｃを切削して周波数を調整する。FIG. 3 is a perspective view showing another embodiment of the present invention.
The drawing is a sectional view taken along line IV-IV in FIG. This is an application example of the present invention when the electrode 1a is formed on the inner surface of the resonator case 1. In this case, for example, as shown in the drawing, the resonator case 1 facing the upper end surface of the dielectric pillar 3 is shown. The portion is not formed and left as the hole B, and the electrode cutting portion C below the hole B is cut to adjust the frequency.
なお、上記実施例ではTM010モードの誘電体共振器につ
いて説明しているが、本発明はこれに限らず、TM010モ
ード等、他のTMモードの誘電体共振器にも適用できるこ
とは勿論である。It should be noted that although the TM 010 mode dielectric resonator is described in the above embodiment, the present invention is not limited to this, and it goes without saying that the present invention can be applied to other TM mode dielectric resonators such as the TM 010 mode. is there.
発明の効果 以上詳述した如く本発明による場合には、周波数調整前
の共振器における電極の一部を切削して共振周波数を調
整し、共振器の外側から容易に切削を行うことができる
ので、共振周波数の可変範囲を大きくとることができか
つ容易に周波数調整することができ、また、また、切削
時に共振器に及ぼす振動を小さくできるため、作業性の
改善が図れると共に設計上の狂いの発生を防止でき、電
気的特性の信頼性を向上できるという優れた効果を奏す
る。Effects of the Invention As described in detail above, according to the present invention, it is possible to easily cut from the outside of the resonator by cutting a part of the electrode in the resonator before frequency adjustment to adjust the resonance frequency. Since the variable range of the resonance frequency can be set large and the frequency can be easily adjusted, and the vibration exerted on the resonator during cutting can be reduced, workability can be improved and design error can be avoided. It has an excellent effect that it can be prevented from occurring and the reliability of electric characteristics can be improved.
第１図は本発明に係るTMモード誘電体共振器（完成品）
を示す斜視図であり、第２図は第１図のII-II線による
断面図、第３図は本発明の他の実施例を示す斜視図、第
４図は第３図のIV-IV線による断面図、第５図は従来品
を示す斜視図、第６図は従来の周波数調整方法を説明す
るための断面図である。 １……共振器ケース、1a……電極、２……空胴、３……
誘電体柱、A,C……電極切削部。FIG. 1 shows a TM mode dielectric resonator according to the present invention (completed product).
2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 is a perspective view showing another embodiment of the present invention, and FIG. 4 is IV-IV of FIG. FIG. 5 is a perspective view showing a conventional product, and FIG. 6 is a sectional view for explaining a conventional frequency adjusting method. 1 ... Resonator case, 1a ... Electrode, 2 ... Cavity, 3 ...
Dielectric columns, A, C ... Electrode cutting part.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高垣 尚 京都府長岡京市天神２丁目26番10号 株式 会社村田製作所内 (72)発明者 山下 貞夫 京都府長岡京市天神２丁目26番10号 株式 会社村田製作所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Takagaki 2 26-10 Tenjin, Nagaokakyo, Kyoto Prefecture Murata Manufacturing Co., Ltd. (72) Inventor Sadao Yamashita 2 26-10 Tenjin, Nagaokakyo, Kyoto Stock Company Murata Manufacturing
Claims (2)
内の空胴に、誘電体柱を設けた周波数調整前のTMモード
誘電体共振器において、 前記共振器ケースの電極の一部を切削することにより共
振周波数を調整することを特徴とする誘電体共振器の周
波数調整方法。1. A TM mode dielectric resonator before frequency adjustment in which a dielectric column is provided in a cavity inside a resonator case having electrodes formed on an outer surface thereof, wherein a part of an electrode of the resonator case is provided. A method for adjusting the frequency of a dielectric resonator, wherein the resonance frequency is adjusted by cutting.
共振器ケース内の空胴に、誘電体柱を設けたTMモード誘
電体共振器において、 前記共振器ケースの孔から露出している電極を切削する
ことにより共振周波数を調整することを特徴とする誘電
体共振器の周波数調整方法。2. A TM mode dielectric resonator in which an electrode is formed on an inner surface and a dielectric column is provided in a cavity in a resonator case having a hole in a part thereof, which is exposed from a hole of the resonator case. A method for adjusting the frequency of a dielectric resonator, wherein the resonant frequency is adjusted by cutting the electrode that is being cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21172188A JPH0720004B2 (en) | 1988-08-25 | 1988-08-25 | Frequency adjustment of dielectric resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21172188A JPH0720004B2 (en) | 1988-08-25 | 1988-08-25 | Frequency adjustment of dielectric resonator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0260207A JPH0260207A (en) | 1990-02-28 |
| JPH0720004B2 true JPH0720004B2 (en) | 1995-03-06 |
Family
ID=16610502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21172188A Expired - Fee Related JPH0720004B2 (en) | 1988-08-25 | 1988-08-25 | Frequency adjustment of dielectric resonator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0720004B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993024970A1 (en) * | 1992-06-01 | 1993-12-09 | Poseidon Scientific Instruments Pty. Ltd. | Microwave resonator |
-
1988
- 1988-08-25 JP JP21172188A patent/JPH0720004B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0260207A (en) | 1990-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |