JPS60165103A - Method for adjusting reactance of dielectric resonator - Google Patents
Method for adjusting reactance of dielectric resonatorInfo
- Publication number
- JPS60165103A JPS60165103A JP2049984A JP2049984A JPS60165103A JP S60165103 A JPS60165103 A JP S60165103A JP 2049984 A JP2049984 A JP 2049984A JP 2049984 A JP2049984 A JP 2049984A JP S60165103 A JPS60165103 A JP S60165103A
- Authority
- JP
- Japan
- Prior art keywords
- input
- dielectric
- reactance
- hole
- coupling
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities
- H01P1/2056—Comb filters or interdigital filters with metallised resonator holes in a dielectric block
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、マイクロ波等の高周波帯域用の送信機や受信
機等に用いる誘電体共振器において、そのリアクタンス
を可変調整する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for variably adjusting the reactance of a dielectric resonator used in a transmitter or receiver for high frequency bands such as microwaves.
周知の如く、チタン酸バリウム等の誘電体を使用するマ
イクロ波用誘電体共振器は、損失が少な（、シたがって
所謂Ｑが高く、誘電率が大Ｎいので小型化できるといっ
た特徴があり、そのため広くマイクロ波帯移動無線機等
に使用されている。この種の誘電体共振器に関する従来
技術としては、１個の直方体状の誘電体ブロックに所定
の間隔をおいて、複数個の共振器用の穴と結合調整用の
穴とを交互に設け、該共振器用の穴の内面および誘電体
ブロックの外面（側面と底置）とにメタライズ層を形成
することにより、共振器用の穴の長さの４倍の共振波長
をもつ複数の共振素子を形成し、それらを前記結合調整
用の穴の形状や位置に応じて適当に組み合わせた構造の
ものがある。この場合、外部回路と結合するための入出
力結合部は、誘電体ブロックの両端に形成した結合用の
穴に金属製の入出力端子を挿入する構成が一般的であり
、それら入出力端子を介して外部回路とｆｉｆｌＥ体共
振藷との結合がなされることになる゛。As is well known, dielectric resonators for microwaves that use dielectric materials such as barium titanate have the characteristics of low loss (therefore, so-called high Q) and large dielectric constants, allowing for miniaturization. Therefore, it is widely used in microwave band mobile radio equipment, etc.As for the conventional technology regarding this type of dielectric resonator, a plurality of resonators are connected to one rectangular parallelepiped dielectric block at predetermined intervals. By alternately providing dexterity holes and coupling adjustment holes, and forming a metallized layer on the inner surface of the resonator hole and the outer surface (side surface and bottom) of the dielectric block, the length of the resonator hole can be adjusted. There is a structure in which a plurality of resonant elements having a resonant wavelength four times as large as the resonant wavelength is formed, and these are combined appropriately depending on the shape and position of the hole for coupling adjustment. The input/output coupling section for this purpose generally has a configuration in which metal input/output terminals are inserted into coupling holes formed at both ends of the dielectric block, and the fiflE body resonance is connected to the external circuit through these input/output terminals. A union with rice will be made.
このような誘電体共振器を用いた従来のフィルタは、そ
のインピーダンス力ｉ５０Ωの近傍となるようにｉｌｌ
整されている。そのため、それが組込まれる他の伝送路
との結合は同じ（５０Ωラインにして結合することが必
要となる。しかし、実際には線路にリアクタンス成分が
存在するために、このフィルタと他の回路との結合は必
ずしも容易でないし、またトランジスタ増幅器の入出力
と整合をとることも難しくなる。A conventional filter using such a dielectric resonator has an impedance of approximately 50Ω.
It is arranged. Therefore, the coupling with other transmission lines in which it is incorporated must be the same (50Ω line). However, in reality, since there is a reactance component in the line, this filter and other circuits It is not always easy to combine the two, and it is also difficult to match the input and output of the transistor amplifier.
また、この種の誘電体共振器は、送信周波数と受信周波
数の異なる同時送受話移動無線方式の空中線共用器とし
ても利用される。この場合、送信側結合回路および受信
側結合回路には、結合点よりそれぞれ受信周波数および
送信周波数で送信フィルタおよび受信フィルタをみた場
合、それぞれインピーダンスがほぼ開放状態となるよう
な合成回路が設けられる。この合成回路には、従来技術
によれば長さを厳密に調整した同軸ケーブルが用いられ
るが、実際にはかなりの長さとなり、大きなスペースが
必要となる。それ故、このような分波盤の位相合成を小
型で簡便に行えるような他の方式が強く望まれていると
いう実情もある。Further, this type of dielectric resonator is also used as an antenna duplexer in a mobile radio system for simultaneous transmission and reception, in which the transmission frequency and reception frequency are different. In this case, the transmitting side coupling circuit and the receiving side coupling circuit are provided with a combining circuit such that when the transmitting filter and the receiving filter are viewed from the coupling point at the receiving frequency and the transmitting frequency, respectively, the respective impedances are in an almost open state. According to the prior art, this composite circuit uses a coaxial cable whose length is precisely adjusted, but in reality it is quite long and requires a large space. Therefore, there is a strong demand for another method that can easily and compactly perform the phase synthesis of such a branching disc.
本発明の目的は、誘電体共振器のリアクタンスを容易に
可変調整することができ、それ故、他の回路やトランジ
スタ増幅−との結合を容易ならしめることができるし、
また分波盤の位相合成用としても利用できるような新し
い方法を提供することにある。An object of the present invention is to easily and variably adjust the reactance of a dielectric resonator, thereby facilitating coupling with other circuits and transistor amplifiers.
Another object of the present invention is to provide a new method that can be used for phase synthesis of a branching board.
このような目的を達成するために案出された本発明は、
一体構造の１１１体共振器において、その入出力結合用
の穴に入出力端子とは逆の方向から金属棒または誘電体
棒を挿入して、それによってリアクタンスを可変させる
ように構成したものである。The present invention, devised to achieve such objects,
This is a 111-body resonator with an integrated structure, in which a metal rod or dielectric rod is inserted into the input/output coupling hole from the direction opposite to the input/output terminals, thereby varying the reactance. .
以下、図面に基づき本発明について更に詳しく説明する
。第１図は本発明にかかるリアクタンス調整方法の一実
施例を示す説明図である。Hereinafter, the present invention will be explained in more detail based on the drawings. FIG. 1 is an explanatory diagram showing an embodiment of the reactance adjustment method according to the present invention.
この実施例で用いている誘電体ブロック１は、例えばチ
タン酸バリウム等の高誘電率の物質から成る焼結したほ
ぼ直方体状のブロックであり、その長手方向に間隔をお
いて設けた３個の共振器用の穴２と、それらの間に設す
た結合調整用の六３を有する構造である。そして、この
ような誘電体ブロック１の両端部にはそれぞれ入出力結
合用の穴４が設けられる。誘電体ブロック１はその上面
を除く外表面（す、なわ、ち側面と底面）と前記共振器
用の穴２の内面にメタライズ層が形成される。このメタ
ライズ層は、非常に薄い金属の層であり、例えば銀ペー
スト等を塗布し焼き付けるといった方法で形成される。The dielectric block 1 used in this embodiment is a sintered, approximately rectangular parallelepiped block made of a material with a high dielectric constant, such as barium titanate, and has three blocks spaced apart in the longitudinal direction. This structure has a resonator hole 2 and a coupling adjustment hole 2 provided between the holes 2. Input/output coupling holes 4 are provided at both ends of such dielectric block 1, respectively. A metallized layer is formed on the outer surface of the dielectric block 1 except for its top surface (i.e., side surfaces and bottom surface) and on the inner surface of the resonator hole 2. This metallized layer is a very thin metal layer, and is formed by, for example, applying a silver paste or the like and baking it.
そして、前記入出力結合用の穴４の内部に、金属製の入
出力端子５が挿入され、誘電体共振器となる。Then, a metal input/output terminal 5 is inserted into the input/output coupling hole 4 to form a dielectric resonator.
ここまでの構成は従来公知のものと全く同様である。こ
こで本発明が従来技術と顕著に相違する点は、入出力結
合用の穴４に入出力端子５とは逆の方向からりアクタン
ス調整棒６を挿入する点である。乙のりアクタンス調整
棒６は、金属材料または誘電体材料からなる棒であって
、誘導性の成分を増大させるか、あるいは容量性の成分
を増大させるかによって、どちらか一方が選ばれること
になる。すなわち誘導性リアクタンスを増加させたい場
合には、リアクタンス１調整棒６として金属棒を選択し
、それを前記入出力結合用の穴４内に挿入すればよい。The configuration up to this point is completely the same as the conventionally known configuration. Here, the present invention is significantly different from the prior art in that the actance adjustment rod 6 is inserted into the input/output coupling hole 4 from the direction opposite to that of the input/output terminal 5. The actance adjustment rod 6 is a rod made of a metal material or a dielectric material, and either one is selected depending on whether to increase the inductive component or the capacitive component. . That is, if it is desired to increase the inductive reactance, a metal rod may be selected as the reactance 1 adjustment rod 6 and inserted into the input/output coupling hole 4.
逆に、容量性リアクタンスを増加させたい場合には、う
アクタンス調整棒６として誘電体棒を選択し、それを前
記入出力結合用の穴４内に挿入すればよい。Conversely, if it is desired to increase the capacitive reactance, a dielectric rod may be selected as the reactance adjustment rod 6 and inserted into the input/output coupling hole 4.
リアクタンス調整棒６の材質と、それの入出力結合用の
穴４への挿入量とによって誘電体共振器のインピーダン
スがどのように変化するかを示したのが第２図である。FIG. 2 shows how the impedance of the dielectric resonator changes depending on the material of the reactance adjustment rod 6 and the amount of insertion into the input/output coupling hole 4.
例えばこの第２図のスミスチャート（Ｚ ｃｈａｒｔｌ
から明らかなように、金属棒の挿入量を増加することに
よって（通常数ｍ程度）、誘電体共振器のインピーダン
スは誘導性の方向に動いていき、所望の値に自由に調整
することができるのである。誘電体棒についても同様の
ことが生じ、押入量を増加することによって誘電体共振
器のインピーダンスは容量性の方向に動いていくことに
なる。なお、これらリアクタンス調整棒は入力側結合用
の穴に挿入するのがよい。入力側結合用の穴に挿入する
ほうが位相が大きく変化してみえるからである。ノ
本発明は上記のように構成した誘電体共振器のりアクタ
ン゛ス調整方法であるから、例えば通常フィルタとして
インピーダンスが５０Ω近傍となるように調整しておき
、それを組込む線路のりアクタンスを打ち消すときには
、打ち消すべきリアクタンスが容量性であるか誘導性で
あるかに応じて金属棒または誘電体棒を選択し、その挿
入量を適宜調整することによって線路のりアクタンスを
容易に打ち消すことができ、微調用として有効に動作す
るため、他の回路との結合を容易ならしめることができ
るし、またトランジスタ増幅器の入出力に整合させるこ
とも容易であり、更には分波器の位相合成用に利用でき
るなど、数々のすぐれた効果を奏しうるものである。For example, the Smith chart shown in Figure 2 (Z chart)
As is clear from the above, by increasing the amount of metal rod inserted (usually on the order of several meters), the impedance of the dielectric resonator moves in the inductive direction, and can be freely adjusted to the desired value. It is. The same thing happens with the dielectric rod, and as the amount of insertion increases, the impedance of the dielectric resonator moves toward capacitance. Note that these reactance adjustment rods are preferably inserted into the input side coupling holes. This is because the phase appears to change more greatly when inserted into the input side coupling hole. Since the present invention is a method for adjusting the actance of a dielectric resonator configured as described above, for example, when the impedance is adjusted to be around 50Ω as a normal filter, and the line actance in which it is incorporated is canceled, it is necessary to By selecting a metal rod or a dielectric rod depending on whether the reactance to be canceled is capacitive or inductive, and adjusting the insertion amount appropriately, line reactance can be easily canceled, and it can be used for fine adjustment. Since it operates effectively as a circuit, it can be easily coupled with other circuits, it can be easily matched to the input and output of a transistor amplifier, and it can also be used for phase synthesis of a duplexer. , which can have many excellent effects.
第１図は本発明に係る誘電体共・振器のリアクタンス調
整方法の一実施例を示す説明図、第２図はその動作を説
明するためのスミスチャートである。
１・・・誘電体ブロック、２・・・共振器用の穴、３・
・・結合調整用の穴、４・入出力結合用の穴、５・・・
入出力端子、６・・リアクタンス調整棒。
特許出願人 富士電気化学株式会社
代 理 人 茂 見 積FIG. 1 is an explanatory diagram showing an embodiment of the method for adjusting the reactance of a dielectric resonator according to the present invention, and FIG. 2 is a Smith chart for explaining the operation thereof. 1... Dielectric block, 2... Hole for resonator, 3...
... Hole for coupling adjustment, 4. Hole for input/output coupling, 5...
Input/output terminal, 6...Reactance adjustment rod. Patent applicant Fuji Electrochemical Co., Ltd. Agent Shigeru Estimate
Claims (1)
の共振器用の穴を設けた一体構造の誘電体共振器におい
て、その入出力結合用の穴に入出力端子とは逆の方向か
ら金属棒または誘電体棒を挿入してリアクタンスを可変
させるＪ：うにしたことを特徴とする誘電体共振器のり
アクタンス調整方法。1. In a monolithic dielectric resonator with multiple resonator holes provided in the longitudinal direction of a rectangular parallelepiped dielectric block, a metal rod is inserted into the input/output coupling hole from the opposite direction from the input/output terminal. Alternatively, a method for adjusting the reactance of a dielectric resonator is characterized in that the reactance is varied by inserting a dielectric rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2049984A JPS60165103A (en) | 1984-02-07 | 1984-02-07 | Method for adjusting reactance of dielectric resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2049984A JPS60165103A (en) | 1984-02-07 | 1984-02-07 | Method for adjusting reactance of dielectric resonator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60165103A true JPS60165103A (en) | 1985-08-28 |
| JPH0374841B2 JPH0374841B2 (en) | 1991-11-28 |
Family
ID=12028852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2049984A Granted JPS60165103A (en) | 1984-02-07 | 1984-02-07 | Method for adjusting reactance of dielectric resonator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60165103A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6372902U (en) * | 1986-10-30 | 1988-05-16 | ||
| JPS63306702A (en) * | 1987-06-08 | 1988-12-14 | Fuji Elelctrochem Co Ltd | Dielectric filter |
| JPH0284402U (en) * | 1988-12-15 | 1990-06-29 | ||
| US5216394A (en) * | 1991-07-19 | 1993-06-01 | Uniden Corporation | Dielectric multi-line resonator including a coupling conductor line mainly inductively coupled to a resonator conductor line |
| US5406236A (en) * | 1992-12-16 | 1995-04-11 | Motorola, Inc. | Ceramic block filter having nonsymmetrical input and output impedances and combined radio communication apparatus |
| US5905420A (en) * | 1994-06-16 | 1999-05-18 | Murata Manufacturing Co., Ltd. | Dielectric filter |
-
1984
- 1984-02-07 JP JP2049984A patent/JPS60165103A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6372902U (en) * | 1986-10-30 | 1988-05-16 | ||
| JPS63306702A (en) * | 1987-06-08 | 1988-12-14 | Fuji Elelctrochem Co Ltd | Dielectric filter |
| JPH0284402U (en) * | 1988-12-15 | 1990-06-29 | ||
| US5216394A (en) * | 1991-07-19 | 1993-06-01 | Uniden Corporation | Dielectric multi-line resonator including a coupling conductor line mainly inductively coupled to a resonator conductor line |
| US5406236A (en) * | 1992-12-16 | 1995-04-11 | Motorola, Inc. | Ceramic block filter having nonsymmetrical input and output impedances and combined radio communication apparatus |
| US5905420A (en) * | 1994-06-16 | 1999-05-18 | Murata Manufacturing Co., Ltd. | Dielectric filter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0374841B2 (en) | 1991-11-28 |
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