JPS6333904A - dielectric coaxial resonator - Google Patents
dielectric coaxial resonatorInfo
- Publication number
- JPS6333904A JPS6333904A JP61178055A JP17805586A JPS6333904A JP S6333904 A JPS6333904 A JP S6333904A JP 61178055 A JP61178055 A JP 61178055A JP 17805586 A JP17805586 A JP 17805586A JP S6333904 A JPS6333904 A JP S6333904A
- Authority
- JP
- Japan
- Prior art keywords
- coaxial resonator
- dielectric
- open end
- additional capacitor
- conductor
- 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
- Non-Reversible Transmitting Devices (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明はフィルタや発振器に用いられる誘電体同軸共振
器に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a dielectric coaxial resonator used in filters and oscillators.
従来の技術 従来の誘電体同軸共振器を第３図によって説明する。Conventional technology A conventional dielectric coaxial resonator will be explained with reference to FIG.
誘電体円筒からなる誘電体同軸共振器１ｏは開放端面１
１以外の片端面、外周面および内周面全体には銀メタラ
イズが施されて内周導体１０ａ。A dielectric coaxial resonator 1o made of a dielectric cylinder has an open end surface 1
Silver metallization is applied to one end surface other than 1, the outer circumferential surface, and the entire inner circumferential surface to form the inner circumferential conductor 10a.
外周導体１０ｂが形成されており、開放端面１１には内
周導体１０ａ、外周導体１０ｂとそれぞれ導通する電極
１２．１３が形成されている。An outer circumferential conductor 10b is formed, and electrodes 12 and 13 are formed on the open end surface 11 to be electrically connected to the inner circumferential conductor 10a and the outer circumferential conductor 10b, respectively.
発明が解決しようとする問題点
以上、説明した構造において、近年の小形化指向に対し
て共振器長を短かくするには誘電体材料の誘電率を大き
くすることと同軸共振器の開放端面に電極を形成して容
量を付加していくことが考えられる。しかし、材料の誘
電率を大きくするとＱの劣化と温度係数の平坦性が悪く
なり、また、開放端面に付加する容量も寸法的に限界が
あるため、小形化を実現する妨げとなっている。Problems to be Solved by the Invention In the structure described above, in order to shorten the resonator length in response to the recent trend toward miniaturization, it is necessary to increase the permittivity of the dielectric material and to reduce the open end surface of the coaxial resonator. It is conceivable to add capacitance by forming electrodes. However, increasing the dielectric constant of the material causes deterioration of the Q and the flatness of the temperature coefficient, and there is also a dimensional limit to the capacitance that can be added to the open end surface, which is an obstacle to realizing miniaturization.
本発明は以上のような従来の欠点を除去するものであり
、小形の誘電体同軸共振器を提供することを目的とする
ものである。The present invention eliminates the above-mentioned conventional drawbacks, and aims to provide a small dielectric coaxial resonator.
問題点を解決するための手段
上記問題点を解決するために本発明の誘電体同軸共振器
は、開放端側の外径を短絡端側の外径より小さいステッ
プインピーダンスタイプの同軸共振器本体の開放端側の
外周に、誘電体円筒からなり、内周と外周に電極を形成
した付加コンデンサを組込み、誘電体同軸共振器本体の
外周導体と付加コンデンサの内周電極、誘電体同軸共振
器本体の内周導体と付加コンデンサの外周電極をそれぞ
れ電気的に接続する構成としたものである。Means for Solving the Problems In order to solve the above problems, the dielectric coaxial resonator of the present invention has a step impedance type coaxial resonator body in which the outer diameter of the open end side is smaller than the outer diameter of the short-circuited end side. An additional capacitor made of a dielectric cylinder with electrodes formed on the inner and outer peripheries is built into the outer periphery of the open end, and the outer conductor of the dielectric coaxial resonator body, the inner electrode of the additional capacitor, and the dielectric coaxial resonator body The inner conductor of the capacitor and the outer electrode of the additional capacitor are electrically connected to each other.
作用
この技術的手段により、誘電体同軸共振器の外径寸法を
変えることなく共振器長を短かくすることができると共
に付加コンデンサの誘電体材料の温度係数の選定により
同軸共振器の温度係数を補正することができる。Effect: With this technical means, the resonator length can be shortened without changing the outer diameter of the dielectric coaxial resonator, and the temperature coefficient of the coaxial resonator can be reduced by selecting the temperature coefficient of the dielectric material of the additional capacitor. Can be corrected.
実施例
以下、本発明の実施例を添付の図面第１図、第２図を用
いて説明する。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 1 and 2.
第１図、第２図において、誘電体円筒からなる同軸共振
器本体１は開放端２の外径を短絡端３の外径より小さい
ステップインピーダンスタイプにし、開放端面以外の片
端面、外周面および内周面全体には銀メタライズが施さ
れて内周導体１２Ｌ。In FIGS. 1 and 2, the coaxial resonator main body 1 made of a dielectric cylinder has a step impedance type in which the outer diameter of the open end 2 is smaller than the outer diameter of the short-circuited end 3, and one end surface other than the open end surface, the outer peripheral surface, and The entire inner circumferential surface is coated with silver metallization to form an inner circumferential conductor 12L.
外周導体１ｂが形成されており、開放端面２には内周導
体１Ｎ、外周導体１ｂとそれぞれ導通する内電極４．外
電極６が形成されている。高周波特性にすぐれ、必要と
する温度係数をもつ誘電体円筒からなる付加コンデンサ
６は内周と外周に銀メタライズによりそれぞれ内周電極
ア、外周電極８が施されている。同軸共振器本体１の開
放端２の外周に付加コンデンサ６を装着し、同軸共振器
本体１の外電極６と付加コンデンサ６の内周電極子を半
田付等により接続する。金属からなる接続金具９を同軸
共振器本体１の開放端２に配置し、同軸共振器本体１の
内電極４と付加コンデンサ６の外周電極８とをそれぞれ
半田付等により電気的に接続して構成する。An outer circumferential conductor 1b is formed, and an inner electrode 4. which is electrically connected to the inner circumferential conductor 1N and the outer circumferential conductor 1b, respectively, is formed on the open end surface 2. An outer electrode 6 is formed. The additional capacitor 6, which is made of a dielectric cylinder with excellent high frequency characteristics and a required temperature coefficient, has an inner electrode 8 and an outer electrode 8 made of silver metallization on the inner and outer peripheries, respectively. An additional capacitor 6 is attached to the outer periphery of the open end 2 of the coaxial resonator body 1, and the outer electrode 6 of the coaxial resonator body 1 and the inner electrode of the additional capacitor 6 are connected by soldering or the like. A metal connecting fitting 9 is placed on the open end 2 of the coaxial resonator body 1, and the inner electrode 4 of the coaxial resonator body 1 and the outer electrode 8 of the additional capacitor 6 are electrically connected by soldering or the like. Configure.
発明の効果
以上のように本発明によれば、誘電体同軸共振器の開放
端側のインピーダンスを下げ、容量を付加するため、同
軸共振器の外径寸法を変えることなく共振器長を短かく
することができ、また付加する容量の誘電体材料の温度
係数を選定して同軸共振器の温度係数を補正することが
でき、小形で安定した誘電体同軸共振器が得られ工業的
価値の犬なるものである。Effects of the Invention As described above, according to the present invention, in order to lower the impedance on the open end side of the dielectric coaxial resonator and add capacitance, the resonator length can be shortened without changing the outer diameter of the coaxial resonator. In addition, the temperature coefficient of the coaxial resonator can be corrected by selecting the temperature coefficient of the dielectric material of the added capacitance, and a small and stable dielectric coaxial resonator can be obtained, making it a dog of industrial value. It is what it is.
第１図は本発明の一実施例における誘電体同軸共振器の
分解斜視図、第２図は同容量形成部の断面図、第３図は
従来例による誘電体同軸共振器の斜視図を示す。
１・・・・・・同軸共振器本体、１１Ｌ・・・・・・内
周導体、１ｂ・・・・・・外周導体、２・・・・・・開
放端、３・・・・・・短絡端、４・・・・・・内電極、
６・・・・・・外電極、６・・・・・・付加コンデンサ
、７・・・・・・内周電極、８・・・・・・外周電極、
９・・・・・・接続金具。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名、、
、３ ＩＯFIG. 1 is an exploded perspective view of a dielectric coaxial resonator according to an embodiment of the present invention, FIG. 2 is a sectional view of the same capacitance forming part, and FIG. 3 is a perspective view of a conventional dielectric coaxial resonator. . 1... Coaxial resonator body, 11L... Inner circumference conductor, 1b... Outer circumference conductor, 2... Open end, 3... Short-circuited end, 4...Inner electrode,
6...Outer electrode, 6...Additional capacitor, 7...Inner electrode, 8...Outer electrode,
9... Connection fittings. Name of agent: Patent attorney Toshio Nakao and one other person...
, 3 I.O.
Claims (1)
インピーダンスタイプの同軸共振器本体の開放端側の外
周に誘電体円筒からなり内周と外周に電極を形成した付
加コンデンサを装着し、前記同軸共振器本体の外周導体
と前記付加コンデンサの内周電極、前記同軸共振器本体
の内周導体と前記付加コンデンサの外周電極をそれぞれ
電気的に接続してなる誘電体同軸共振器。An additional capacitor made of a dielectric cylinder and having electrodes formed on the inner and outer peripheries is attached to the outer periphery of the open end side of the step impedance type coaxial resonator main body, where the outer diameter of the open end side is smaller than the outer diameter of the shorted end side. A dielectric coaxial resonator in which an outer circumferential conductor of the coaxial resonator main body and an inner circumferential electrode of the additional capacitor are electrically connected, and an inner circumferential conductor of the coaxial resonator main body and an outer circumferential electrode of the additional capacitor are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61178055A JPS6333904A (en) | 1986-07-29 | 1986-07-29 | dielectric coaxial resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61178055A JPS6333904A (en) | 1986-07-29 | 1986-07-29 | dielectric coaxial resonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6333904A true JPS6333904A (en) | 1988-02-13 |
Family
ID=16041812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61178055A Pending JPS6333904A (en) | 1986-07-29 | 1986-07-29 | dielectric coaxial resonator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6333904A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5175520A (en) * | 1989-07-04 | 1992-12-29 | Murata Manufacturing Co., Ltd. | High frequency coaxial resonator |
| JPH0515510U (en) * | 1991-07-30 | 1993-02-26 | 太陽誘電株式会社 | Dielectric resonator |
| JPH0515506U (en) * | 1991-07-30 | 1993-02-26 | 太陽誘電株式会社 | Dielectric filter |
-
1986
- 1986-07-29 JP JP61178055A patent/JPS6333904A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5175520A (en) * | 1989-07-04 | 1992-12-29 | Murata Manufacturing Co., Ltd. | High frequency coaxial resonator |
| JPH0515510U (en) * | 1991-07-30 | 1993-02-26 | 太陽誘電株式会社 | Dielectric resonator |
| JPH0515506U (en) * | 1991-07-30 | 1993-02-26 | 太陽誘電株式会社 | Dielectric filter |
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