JPH0411363Y2 - - Google Patents
Info
- Publication number
- JPH0411363Y2 JPH0411363Y2 JP14687585U JP14687585U JPH0411363Y2 JP H0411363 Y2 JPH0411363 Y2 JP H0411363Y2 JP 14687585 U JP14687585 U JP 14687585U JP 14687585 U JP14687585 U JP 14687585U JP H0411363 Y2 JPH0411363 Y2 JP H0411363Y2
- Authority
- JP
- Japan
- Prior art keywords
- frequency adjustment
- frequency
- dielectric resonator
- adjustment screw
- screw
- 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
Links
- 238000009434 installation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Description
【考案の詳細な説明】
〔概要〕
誘電体共振器に対向せしめ配設した周波数調整
ねじを回動して、周波数の調整を行なう周波数調
整機構であって、周波数調整ねじのねじ部先端に
傾斜面を形成するとともに、周波数調整ねじの取
付位置を誘電体共振器の中心から偏心せしめ、小
型で周波数調整を容易にする。[Detailed description of the invention] [Summary] This is a frequency adjustment mechanism that adjusts the frequency by rotating a frequency adjustment screw placed opposite to a dielectric resonator. In addition to forming a surface, the mounting position of the frequency adjustment screw is eccentric from the center of the dielectric resonator, making it small and easy to adjust the frequency.
本考案は、誘電体共振器の周波数調整機構に係
り、とくに周波数調整ねじの先端部に傾斜面を設
け誘電体共振器に対して偏心せしめた周波数調整
機構に関する。
The present invention relates to a frequency adjustment mechanism for a dielectric resonator, and more particularly to a frequency adjustment mechanism in which a frequency adjustment screw is provided with an inclined surface at its tip and is eccentric to the dielectric resonator.
マイクロ波帯、ミリ波帯等の誘電体フイルタ
は、複数個の誘電体共振器を、使用する周波数帯
に対応する間隔で金属筐体内に配列して構成され
ている。ところが、これらの共振周波数を可変す
るのに、一般に、これら誘電体共振器の中心上に
対向配置したねじを出し入れすることにより行わ
れているが、この周波数機構は相当長いねじを要
し回転数も多くなるので、調整ねじが短くて回転
数の少ない周波数調整機構の出現が望まれてい
る。 A dielectric filter for a microwave band, a millimeter wave band, or the like is constructed by arranging a plurality of dielectric resonators in a metal casing at intervals corresponding to the frequency band in use. However, in order to vary these resonant frequencies, it is generally done by inserting and removing screws placed oppositely over the center of these dielectric resonators, but this frequency mechanism requires quite long screws and increases the rotational speed. Therefore, there is a desire for a frequency adjustment mechanism with a short adjustment screw and a low rotation speed.
第２図は、従来の周波数調整機構を説明する図
で、同図ａは要部平面図、ｂと要部断面を示す正
面図である。
FIG. 2 is a diagram illustrating a conventional frequency adjustment mechanism, in which a is a plan view of the main part and b is a front view showing a cross section of the main part.
図において、セラミツク等からなる誘電体基板
１に誘電体共振器２を接着し、この誘電体共振器
２の対向する筐体３の誘電体共振器２と同中心に
周波数調整ねじ４を螺入して、この周波数調整ね
じ４を矢印方向に出し入れして所定の周波数に調
整したのち、ロツクナツト５で固定する。 In the figure, a dielectric resonator 2 is bonded to a dielectric substrate 1 made of ceramic or the like, and a frequency adjustment screw 4 is screwed in the same center as the dielectric resonator 2 of a housing 3 facing the dielectric resonator 2. After adjusting the frequency to a predetermined frequency by moving the frequency adjusting screw 4 in and out in the direction of the arrow, it is fixed with a lock nut 5.
上記従来の周波数調整機構にあつては、僅かな
周波数の調整するにも周波数調整ねじ４を相当量
移動（回転）しなければならず、また周波数調整
ねじ４も長くしなければならない等の問題点があ
つた。
In the conventional frequency adjustment mechanism described above, the frequency adjustment screw 4 must be moved (rotated) by a considerable amount to adjust the frequency even slightly, and the frequency adjustment screw 4 must also be made longer. The point was hot.
本考案は、上記の問題点を解決して周波数調整
ねじを短く（小型化）し、移動（回転）を少なく
した周波数調整機構を提供するものである。
The present invention solves the above problems and provides a frequency adjustment mechanism in which the frequency adjustment screw is shortened (downsized) and movement (rotation) is reduced.
すなわち、誘電体共振器の設置対向面に周波数
調整ねじを設けた周波数調整機構において、前記
周波数調整ねじの先端に傾斜面を形成するととも
に、前記周波数調整ねじの取付位置を、前記誘電
体共振器の中心から偏心せしめたことによつて解
決される。 That is, in a frequency adjustment mechanism in which a frequency adjustment screw is provided on a surface opposite to the installation of a dielectric resonator, an inclined surface is formed at the tip of the frequency adjustment screw, and the mounting position of the frequency adjustment screw is adjusted to This can be solved by making it eccentric from the center.
上記周波数調整機構は、誘電体共振器と対向配
置した周波数調整ねじの先端部に傾斜面を形成す
るとともに、誘電体共振器の中心に対し周波数調
整ねじの中心を偏心させて、周波数調整ねじの僅
かな移動（回転）量で調整を行うことができる。
The frequency adjustment mechanism described above forms an inclined surface at the tip of a frequency adjustment screw placed opposite to the dielectric resonator, and also makes the center of the frequency adjustment screw eccentric with respect to the center of the dielectric resonator. Adjustment can be made with a small amount of movement (rotation).
第１図は、本考案の一実施例を説明する図で、
同図ａは要部平面図、ｂと要部断面を示す正面図
で、第２図と同等の部分については同一符号を付
している。
FIG. 1 is a diagram illustrating an embodiment of the present invention.
Figure a is a plan view of the main part, and figure b is a front view showing a cross section of the main part, and parts equivalent to those in Fig. 2 are given the same reference numerals.
図において、セラミツク等からなる誘電体基板
１に誘電体共振器２を接着し、この誘電体共振器
２の対向する筐体３の誘電体共振器２の中心から
所定寸法偏心せしめた位置に、ねじ部の先端を切
断して傾斜面６１（傾斜面の角度は軸に直交する
面とのなす角度が10°〜45°とする。角度が10°より
小さいと周波数の変化が少なくなり、角度が45°
以上になると周波数調整ねじ６が長くなり実用的
でない。）を形成した周波数調整ねじ６を螺入し
て、この周波数調整ねじ６を矢印方向に出し入れ
して所定の周波数に調整したのち、ロツクナツト
５で固定する。 In the figure, a dielectric resonator 2 is bonded to a dielectric substrate 1 made of ceramic or the like, and at a position offset by a predetermined dimension from the center of the dielectric resonator 2 of a casing 3 facing the dielectric resonator 2. Cut the tip of the threaded part to form an inclined surface 61. is 45°
If it is more than that, the frequency adjustment screw 6 becomes long and is not practical. ) is screwed in, and the frequency adjusting screw 6 is moved in and out in the direction of the arrow to adjust to a predetermined frequency, and then fixed with the lock nut 5.
このように周波数調整ねじ６のねじ先端部に傾
斜面６１を形成するとともに、周波数調整ねじ６
の軸心を一方の外径が誘電体共振器２より外に出
るように偏心せしめたことにより、僅かな回転で
容量の変化量が大きい。 In this way, the inclined surface 61 is formed at the screw tip of the frequency adjustment screw 6, and the frequency adjustment screw 6
By making the axis of the dielectric resonator eccentric so that one of the outer diameters thereof protrudes outside the dielectric resonator 2, the amount of change in capacitance is large with a slight rotation.
すなわち、第３図に示す如く、周波数f1とf2の
範囲での調整を行なう場合、Ａ（従来の周波数調
整機構の容量変化曲線）では、周波数調整ねじの
挿入長l1だけ移動させなけらばならないが、Ｂ
（本考案の周波数調整機構の周波数変化曲線）で
は、周波数調整ねじの挿入位置で先端が共振器２
の中心から最遠の実線位置と最近の点線位置との
回転角度θで共振周波数の変化が生じ、ねじ６の
回転に伴つて変化の中心は曲線Ａのように推移す
る。従つて所望位置で半回転以内で周波数の調整
を行なうことができる。 In other words, as shown in Fig. 3, when adjusting in the frequency range f 1 and f 2 , in A (capacity change curve of conventional frequency adjustment mechanism), the frequency adjustment screw must be moved by the insertion length l 1 . I have to give up, but B
(Frequency change curve of the frequency adjustment mechanism of the present invention), the tip of the frequency adjustment screw is connected to the resonator 2 at the insertion position.
A change in the resonance frequency occurs at a rotation angle θ between the position of the solid line farthest from the center and the latest dotted line position, and the center of change changes as shown by curve A as the screw 6 rotates. Therefore, the frequency can be adjusted within half a rotation at a desired position.
なお、誘電体共振器２と周波数調整ねじ６との
偏心せしめる距離（寸法）（周波数調整ねじ６の
一方の外径が誘電体共振器２の外周より外に出る
ことが条件）及び傾斜角（緩急）は、周波数調整
範囲により決定される。 Note that the distance (dimensions) for eccentricity between the dielectric resonator 2 and the frequency adjustment screw 6 (the condition is that the outer diameter of one of the frequency adjustment screws 6 is outside the outer periphery of the dielectric resonator 2) and the inclination angle ( speed) is determined by the frequency adjustment range.
以上の説明から明らかなように、本考案によれ
ば周波数調整ねじを小形（短く）にでき、調整移
動量（回転）が少なくなり周波数調整範囲が拡大
できる利点がある。
As is clear from the above description, the present invention has the advantage that the frequency adjustment screw can be made smaller (shorter), the amount of adjustment movement (rotation) can be reduced, and the frequency adjustment range can be expanded.
第１図は、本考案の一実施例を説明する図で、
同図ａは要部平面図、ｂと要部断面を示す正面
図、第２図は、従来の周波数調整機構を説明する
図で、同図ａは要部平面図、ｂと要部断面を示す
正面図、第３図は、周波数と周波数調整ねじの挿
入長の関係を示す曲線である。
図において、１は誘電体基板、２は誘電体共振
器、３は筐体、４，６は周波数調整ねじ、５はロ
ツクナツト、６１は傾斜面、をそれぞれ示す。
FIG. 1 is a diagram illustrating an embodiment of the present invention.
Figure a is a plan view of the main part, b is a front view showing a cross section of the main part, and Figure 2 is a diagram explaining a conventional frequency adjustment mechanism. The front view shown in FIG. 3 is a curve showing the relationship between the frequency and the insertion length of the frequency adjustment screw. In the figure, 1 is a dielectric substrate, 2 is a dielectric resonator, 3 is a housing, 4 and 6 are frequency adjustment screws, 5 is a lock nut, and 61 is an inclined surface.
Claims (1)
を設けた周波数調整機構において、 前記周波数調整ねじ６の先端に傾斜面６１を形
成するとともに、前記周波数調整ねじ６の取付位
置を、前記誘電体共振器２の中心から偏心せしめ
たことを特徴とする周波数調整機構。[Claims for Utility Model Registration] In a frequency adjustment mechanism in which a frequency adjustment screw is provided on a surface facing the installation of the dielectric resonator 2, an inclined surface 61 is formed at the tip of the frequency adjustment screw 6; A frequency adjustment mechanism characterized in that the mounting position of the dielectric resonator 2 is offset from the center of the dielectric resonator 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14687585U JPH0411363Y2 (en) | 1985-09-25 | 1985-09-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14687585U JPH0411363Y2 (en) | 1985-09-25 | 1985-09-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6253805U JPS6253805U (en) | 1987-04-03 |
| JPH0411363Y2 true JPH0411363Y2 (en) | 1992-03-23 |
Family
ID=31059732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14687585U Expired JPH0411363Y2 (en) | 1985-09-25 | 1985-09-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0411363Y2 (en) |
-
1985
- 1985-09-25 JP JP14687585U patent/JPH0411363Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6253805U (en) | 1987-04-03 |
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