JPH0153923B2 - - Google Patents
Info
- Publication number
- JPH0153923B2 JPH0153923B2 JP9891183A JP9891183A JPH0153923B2 JP H0153923 B2 JPH0153923 B2 JP H0153923B2 JP 9891183 A JP9891183 A JP 9891183A JP 9891183 A JP9891183 A JP 9891183A JP H0153923 B2 JPH0153923 B2 JP H0153923B2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- resonance
- resonant
- rod
- combline
- 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
- 239000004020 conductor Substances 0.000 description 9
- 238000005219 brazing Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Description
【発明の詳細な説明】
この発明はマイクロ波帯でしばしば使用されて
いるコムライン形ろ波器の構造に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a combline filter often used in the microwave band.
第１図にコムライン形帯域ろ波器の原理図を示
す。図中、Ｒ１〜Rnは導体よりなる各共振素子
（棒）であり、通常その長さθは1/8波長程度に選
ばれ、各棒Ｒ１〜Rnの先端部の容量C1〜Cnとで
各々、中心周波数にて並列共振を起こすようにな
つており、又各共振棒Ｒ１〜Rn間の間隔は必要
な結合を得る様に選ばれる。又、信号の入、出力
は両端の共振器YA，YBと適当な結合を取ること
によつて得られ、本図では容量CA1，CoB結合によ
る場合を示している。 FIG. 1 shows a diagram of the principle of a combline bandpass filter. In the figure, R1 to Rn are each resonant element (bar) made of a conductor, and the length θ is usually selected to be about 1/8 wavelength, and the capacitance C1 to Cn at the tip of each bar R1 to Rn is , to cause parallel resonance at the center frequency, and the spacing between each resonant rod R1-Rn is selected to obtain the necessary coupling. In addition, signal input and output are obtained by appropriate coupling with the resonators Y A and Y B at both ends, and this figure shows the case where the capacitance C A1 and C oB are coupled.
なお第１図のろ波器の参考文献としては、E.G.
CRISTAL“CAPACITY COUPLING
SHORTENS COMB−LINEFILTERS”
MICROWAVES DEC.1967がある。 As a reference for the filter shown in Figure 1, please refer to EG
CRISTAL“CAPACITY COUPLING”
SHORTENS COMB−LINEFILTERS”
There is MICROWAVES DEC.1967.
従来この形のろ波器を実現する場合、各共振棒
Ｒ１〜Rnは丸棒又は角棒とし、直方体の枠体の
中にそれらをろう付などの手段で固定することに
よつて構成していた。この場合各共振棒Ｒ１〜
Rn毎にろう付を行なう必要があること、その取
付精度も厳しい値が要求されること等により、工
程が複雑となり、又精度の点から、特に高い周波
数帯（8GHz以上）では実現が困難であつた。 Conventionally, when realizing a filter of this type, each of the resonance rods R1 to Rn is a round rod or a square rod, and is constructed by fixing them in a rectangular parallelepiped frame by means such as brazing. Ta. In this case, each resonance rod R1~
The process is complicated because it is necessary to braze each Rn and strict values are required for the installation accuracy, and from the viewpoint of accuracy, it is difficult to achieve this, especially in high frequency bands (8 GHz and above). It was hot.
本発明はこの様な従来の問題点を解決するため
になされたもので、従来、製作が無理とされてい
た十数ＧHz帯迄、実現が可能であるばかりでな
く、構成も簡単となり、高Ｑ値が得られるととも
に高精度で、且つ高い特性安定度が得られ、しか
も容易に製作することが可能なコムライン形ろ波
器を提供することを目的としている。 The present invention was made in order to solve these conventional problems.It is not only possible to realize up to 10-odd GHz band, which was conventionally considered impossible to manufacture, but also has a simple configuration and high performance. It is an object of the present invention to provide a combline filter that can obtain a Q value, have high accuracy, and high characteristic stability, and can be easily manufactured.
以下この発明の一実施例を図について説明す
る。 An embodiment of the present invention will be described below with reference to the drawings.
第２図は本発明の一実施例によるコムライン形
ろ波器を示す。図に示す様に、各共振棒７は枠体
１の一部として１枚の板を刳り貫くことによつて
形づくられており、その厚みは枠体よりも薄いも
のである。刳り貫く形状は同図ａに示すようにや
や複雑であるが、逆にこの様な形状は、ワイヤー
カツトなどの方法を使えば極めて容易にしかも精
度よく実現することが出来る。２は上記枠体１に
各共振棒７に対応して取付けられ、各共振棒７の
先端部との間隔を調整して共振周波数を微調整す
るための微調整ねじ、３及び４は入、出力の同軸
コネクタであり、中心導体の先端部３ａ，４ａを
適当に加工することにより、共振棒７との必要な
結合を得ている。又、５及び６は平板上の上下の
カバーであり、適当なネジによつて枠体１に固定
されている。 FIG. 2 shows a combline filter according to one embodiment of the invention. As shown in the figure, each resonant rod 7 is formed by hollowing out a single plate as part of the frame 1, and its thickness is thinner than that of the frame. Although the hollowed-out shape is somewhat complicated as shown in FIG. 2 is a fine adjustment screw that is attached to the frame 1 in correspondence with each resonance rod 7, and is used to finely adjust the resonance frequency by adjusting the distance from the tip of each resonance rod 7; This is an output coaxial connector, and the necessary coupling with the resonant rod 7 is obtained by suitably processing the tips 3a and 4a of the center conductor. Further, 5 and 6 are upper and lower covers on a flat plate, which are fixed to the frame 1 with appropriate screws.
すなわち枠体１に関しては共振棒７部を刳り貫
いた後、ねじ２取付用のタツプ穴２ａ、コネクタ
３，４取付用の穴３ｂ，４ｂを側面に設け、カバ
ー５，６取付用の穴１ａを設けるだけでこれを構
成することができ、また上下のカバー５，６は取
付用の穴５ａ，６ａを設けた平板を用いればよ
い。 In other words, for the frame 1, after hollowing out the resonance rod 7, tapped holes 2a for attaching the screw 2, holes 3b and 4b for attaching the connectors 3 and 4 are provided on the side surface, and a hole 1a for attaching the covers 5 and 6 is provided. This can be constructed by simply providing the upper and lower covers 5 and 6, and the upper and lower covers 5 and 6 may be flat plates provided with mounting holes 5a and 6a.
このように、本実施例によれば、１枚の板を刳
り貫くことにより枠体に共振導体を形成している
ので、ろう付け等による組立精度の問題を解消で
きるばかりでなく、枠体と共振導体とが一体に形
成されるために、ろう付けの場合のように枠体と
共振導体とに〓間が生じることによりＱ値が低下
する等の問題を解消できる。 In this way, according to this embodiment, since the resonant conductor is formed in the frame by hollowing out a single plate, it is not only possible to solve assembly accuracy problems caused by brazing, etc. Since the resonant conductor and the resonant conductor are integrally formed, it is possible to solve problems such as a decrease in the Q value due to a gap between the frame and the resonant conductor as in the case of brazing.
しかも共振導体の幅が枠体よりも狭くなるよう
に共振導体を形成し、かつ該枠体の両側面に平板
状のカバーをねじで取付けるようにしたので、枠
体のザグリ部と共振導体とが一体になり、実開昭
56−48104号公報のように蓋のザグリ部と枠体と
の間にずれを生じることがなく、従つてカバーを
取付けて組立てを行なうだけで安定した特性を得
ることができる。 In addition, the resonant conductor is formed so that its width is narrower than the frame, and flat covers are attached to both sides of the frame with screws, so that the counterbore of the frame and the resonant conductor are connected to each other. became one, and Mikiakiaki
Unlike in Japanese Patent No. 56-48104, there is no misalignment between the counterbore of the lid and the frame, and therefore stable characteristics can be obtained simply by attaching the cover and assembling it.
以上の様に、本発明によれば、従来別々に作つ
て、ろう付等の方法で組立られていた枠体（筐
体）と各共振導体とが最初から一体化されて作ら
れるため、従来問題となつていた各共振棒の間隔
等に対する精度、共振棒の傾き等の問題を一挙に
解決出来、さらに寸法が小さくなりすぎるため、
特に精度の点で実現が無理とされていた十数ＧHz
帯でのコムライン形帯域ろ波器を実現出来る効果
がある。 As described above, according to the present invention, the frame (casing) and each resonant conductor, which were conventionally made separately and assembled by methods such as brazing, are integrated from the beginning. Problems such as the accuracy of the spacing between each resonant rod, the inclination of the resonant rod, etc., which had been a problem, were solved all at once, and the dimensions were too small.
More than 10 GHz, which was considered impossible to achieve especially in terms of accuracy.
This has the effect of realizing a combline type bandpass filter in the band.
第１図は従来及び本発明のコムライン形ろ波器
の原理を示す図、第２図は本発明の一実施例を示
し、同図ａは平面図、同図ｂは同図ａのＡ−Ａ線
断面図である。
１……枠体、２……ねじ、７……共振棒、３，
４……入、出力コネクタ、５，６……カバー。
FIG. 1 is a diagram showing the principle of a conventional combline filter and the present invention, and FIG. 2 is a diagram showing an embodiment of the present invention. -A cross-sectional view. 1...Frame body, 2...Screw, 7...Resonance bar, 3,
4...Input, output connector, 5, 6...Cover.
Claims (1)
て、 一枚の板を刳り貫くことによつてその厚みが該
板よりも薄い各共振棒が一体に形成された枠体
と、 この枠体の左、右側面に結合された入、出力コ
ネクタと、 上記枠体に上記各共振棒と対向して取付けられ
た、上記各共振棒との間隔を微調整するための微
調整ねじと、 上記枠体の上下に上記各共振棒と平行な面内で
ねじで固定された、平板状の上下のカバーとを備
えたことを特徴とするコムライン形ろ波器。[Scope of Claims] 1. A combline type filter for the microwave band has a frame body in which each resonant rod is integrally formed by hollowing out a single plate so that the thickness thereof is thinner than that plate. , Fine adjustment to finely adjust the spacing between the input and output connectors connected to the left and right sides of this frame, and each of the resonance bars attached to the frame opposite to each of the resonance bars. A combline type filter comprising: a screw; and flat plate-shaped upper and lower covers fixed to the upper and lower parts of the frame body with screws in a plane parallel to each of the resonance rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9891183A JPS59223002A (en) | 1983-06-01 | 1983-06-01 | Comb line type filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9891183A JPS59223002A (en) | 1983-06-01 | 1983-06-01 | Comb line type filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59223002A JPS59223002A (en) | 1984-12-14 |
| JPH0153923B2 true JPH0153923B2 (en) | 1989-11-16 |
Family
ID=14232310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9891183A Granted JPS59223002A (en) | 1983-06-01 | 1983-06-01 | Comb line type filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59223002A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2638024A1 (en) * | 1988-10-14 | 1990-04-20 | Thomson Csf | Method of manufacturing a resonant microwave circuit and circuit thus obtained |
| JPH0580001U (en) * | 1992-03-31 | 1993-10-29 | 横河電機株式会社 | High frequency bandpass filter |
| US5990763A (en) | 1996-08-05 | 1999-11-23 | Adc Solitra Oy | Filter having part of a resonator and integral shell extruded from one basic block |
| FI113578B (en) | 1999-03-03 | 2004-05-14 | Filtronic Lk Oy | resonator filter |
-
1983
- 1983-06-01 JP JP9891183A patent/JPS59223002A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59223002A (en) | 1984-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4142164A (en) | Dielectric resonator of improved type | |
| US4996506A (en) | Band elimination filter and dielectric resonator therefor | |
| US3840828A (en) | Temperature-stable dielectric resonator filters for stripline | |
| JPH0230883Y2 (en) | ||
| US4626809A (en) | Bandpass filter with dielectric resonators | |
| JPS6211801B2 (en) | ||
| US4034319A (en) | Coupled bar microwave bandpass filter | |
| JPS62122303A (en) | Evanescent mode microwave band-pass filter | |
| JPS6325523B2 (en) | ||
| JP3480381B2 (en) | Dielectric resonator device, dielectric filter, composite dielectric filter device, dielectric duplexer, and communication device | |
| US4942377A (en) | Rod type dielectric resonating device with coupling plates | |
| JPH0153923B2 (en) | ||
| JPH0255402A (en) | Dielectric filter | |
| JPS62183603A (en) | Dielectric filter | |
| JP2630387B2 (en) | Dielectric filter | |
| JPH0147042B2 (en) | ||
| JPS6142962B2 (en) | ||
| JPH042481Y2 (en) | ||
| JPH0220001B2 (en) | ||
| JPH0633684Y2 (en) | Dielectric filter | |
| JPH0158881B2 (en) | ||
| JPS6218963Y2 (en) | ||
| JPS5942732Y2 (en) | Microwave coaxial duplexer | |
| JPH0543521Y2 (en) | ||
| JPH066562Y2 (en) | Dielectric filter |