JP2879290B2 - Band stop filter - Google Patents
Band stop filterInfo
- Publication number
- JP2879290B2 JP2879290B2 JP15097493A JP15097493A JP2879290B2 JP 2879290 B2 JP2879290 B2 JP 2879290B2 JP 15097493 A JP15097493 A JP 15097493A JP 15097493 A JP15097493 A JP 15097493A JP 2879290 B2 JP2879290 B2 JP 2879290B2
- Authority
- JP
- Japan
- Prior art keywords
- groove
- band rejection
- main body
- rejection filter
- post
- 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
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、マイクロ波回路に用
いられるある特定の周波数帯の電磁波を阻止する帯域阻
止濾波器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a band rejection filter for blocking an electromagnetic wave in a specific frequency band used in a microwave circuit.
【０００２】[0002]
【従来の技術】従来、この種の帯域阻止濾波器として
は、図２に示すようなものがある。図２（ａ）は従来の
帯域阻止濾波器の構成を示す斜視図、同図（ｂ）はその
断面図である。2. Description of the Related Art FIG. 2 shows a conventional band rejection filter of this type. FIG. 2A is a perspective view showing a configuration of a conventional band rejection filter, and FIG. 2B is a sectional view thereof.
【０００３】図２において、本体１は横幅ａ、深さｂの
寸法を有する片面開放のコ字型導波管をなし、板状カバ
ー２と組むことによって、矩形導波管を構成する。In FIG. 2, a main body 1 forms a U-shaped waveguide having dimensions of a width a and a depth b and is open on one side, and is assembled with a plate-like cover 2 to form a rectangular waveguide.
【０００４】本体１の広幅面には、幅Ｗ、深さｄの溝３
が、それぞれ３／４λｇ（管内波長）の間隔をもって複
数個配置されている。この溝の深さｄを約１／２λｇと
することで、阻止すべき周波数の電磁波に共振させ、共
振器として動作させることによって、帯域阻止特性を得
ている。A wide surface of the main body 1 has a groove 3 having a width W and a depth d.
Are arranged at intervals of ／ λg (in-tube wavelength). By setting the depth d of the groove to about λλg, it resonates with an electromagnetic wave of a frequency to be rejected and operates as a resonator, thereby obtaining a band rejection characteristic.
【０００５】一方、カバー２には本体１の溝３と対向す
る位置に調整用のポスト４が立っている。On the other hand, an adjustment post 4 stands on the cover 2 at a position facing the groove 3 of the main body 1.
【０００６】しかしながら、上記のような従来の帯域阻
止濾波器では、共振器となる溝３が本体１側に、調整用
のポスト４がカバー２側に設けられているため、鋳物化
を行う場合、本体１とカバー２の２つの鋳型を作る必要
があった。However, in the conventional band rejection filter as described above, since the groove 3 serving as a resonator is provided on the main body 1 side and the adjustment post 4 is provided on the cover 2 side, when casting is performed. It was necessary to make two molds, the main body 1 and the cover 2.
【０００７】[0007]
【発明が解決しようとする課題】以上述べたように、従
来の帯域阻止濾波器では、共振器となる溝が本体側に、
調整用のポストがカバー側に設けられているため、鋳物
化を行う場合、本体１とカバーの２つの鋳型を作る必要
があった。As described above, in the conventional band rejection filter, the groove serving as the resonator is provided on the main body side.
Since the adjustment post is provided on the cover side, when casting is performed, it is necessary to make two molds, the main body 1 and the cover.
【０００８】この発明は上記の課題を解決するためにな
されたもので、鋳物化によって構成する場合に、鋳型一
つで簡易に製作できる帯域阻止濾波器を提供することを
目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a band rejection filter which can be easily manufactured with a single mold when formed by casting.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
にこの発明は、矩形導波管内の広幅面の一方の管壁に共
振器としての溝が設けられると共に、広幅面と垂直に突
出するように調整用ポストが設けられてなる帯域阻止濾
波器において、前記溝の長さを前記導波管内の横幅より
も短くし、前記溝と同一の管壁に前記ポストを設けるよ
うにしたことを特徴とする。SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, a groove as a resonator is provided on one tube wall of a wide surface in a rectangular waveguide and projects perpendicular to the wide surface. In the band rejection filter provided with the adjusting post as described above, the length of the groove is shorter than the lateral width in the waveguide, and the post is provided on the same tube wall as the groove. Features.
【００１０】[0010]
【実施例】以下、図面を参照してこの発明の一実施例を
詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.
【００１１】図１（ａ）はこの発明に係る帯域阻止濾波
器の構成を示す斜視図、同図（ｂ）はその断面図であ
る。FIG. 1A is a perspective view showing the configuration of a band rejection filter according to the present invention, and FIG. 1B is a sectional view thereof.
【００１２】図１において、本体１１は横幅ａ、深さｂ
の寸法をもつ片側開放のコ字型導波管であり、一枚の板
であるカバー１２と接合することによって矩形導波管を
構成する。In FIG. 1, a main body 11 has a width a and a depth b.
Is a U-shaped waveguide with one side open, and a rectangular waveguide is formed by joining with a cover 12 which is a single plate.
【００１３】本体１１の広幅面には、幅Ｗ、深さｄ、横
方向の長さｓ（ｓ＜ａ）の溝１３が、３／４λｇの間隔
で設けられている。各溝の深さｄは、阻止すべき周波数
帯における管内波長の約１／２の長さに選ばれる。すな
わち、この溝１３は共振器として動作する。また、溝１
３が設けられたの横方向の広幅面上には、それぞれ調整
用のポスト１４が立てられている。On the wide surface of the main body 11, grooves 13 having a width W, a depth d, and a horizontal length s (s <a) are provided at intervals of ／ λg. The depth d of each groove is selected to be about の of the guide wavelength in the frequency band to be blocked. That is, the groove 13 operates as a resonator. Groove 1
Adjustment posts 14 are respectively set up on the wide surface in the horizontal direction where 3 is provided.
【００１４】したがって、上記構成による帯域阻止濾波
器は、矩形導波管の同一広幅面上に共振器としての溝１
３と調整用のポスト１４を配置しているため、鋳物化に
より構成する場合、鋳型は本体１１に溝１３、ポスト１
４を形成するの一つの鋳型だけを製作すればよく、カバ
ーは一枚の金属板でよい。Therefore, the band rejection filter having the above-described configuration is provided with a groove 1 as a resonator on the same wide surface of the rectangular waveguide.
3 and the post 14 for adjustment, the mold is formed in the main body 11 by the groove 13 and the post 1 when forming by casting.
Only one mold for forming 4 needs to be made, and the cover may be a single metal plate.
【００１５】尚、この発明は上記実施例に限定されるも
のではなく、この発明の要旨を逸脱しない範囲で種々変
形しても同様に実施可能であることはいうまでもない。It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.
【００１６】[0016]
【発明の効果】以上述べたようにこの発明によれば、鋳
物化によって構成する場合に、鋳型一つで簡易に製作で
きる帯域阻止濾波器を提供することができる。As described above, according to the present invention, it is possible to provide a band rejection filter which can be easily manufactured with a single mold when formed by casting.
【図１】この発明の一実施例による帯域阻止濾波器の構
造を示す斜視図及び断面図である。FIG. 1 is a perspective view and a sectional view showing the structure of a band rejection filter according to an embodiment of the present invention.
【図２】従来の帯域阻止濾波器の構造を示す斜視図及び
断面図である。FIG. 2 is a perspective view and a sectional view showing the structure of a conventional band rejection filter.
１ 本体 ２ カバー ３ 溝（共振器） ４ ポスト １１ 本体 １２ カバー １３ 溝（共振器） １４ ポスト DESCRIPTION OF SYMBOLS 1 Main body 2 Cover 3 Groove (resonator) 4 post 11 Main body 12 Cover 13 Groove (resonator) 14 post
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−240303（ＪＰ，Ａ) 特開 昭50−105354（ＪＰ，Ａ) 実開 平３−111004（ＪＰ，Ｕ) 実開 平１−169802（ＪＰ，Ｕ) 特公 昭43−15541（ＪＰ，Ｂ１) 米国特許4833428（ＵＳ，Ａ) 米国特許3579153（ＵＳ，Ａ) 米国特許3058072（ＵＳ，Ａ) 西独国特許出願公開3011301（ＤＥ, Ａ１) (58)調査した分野(Int.Cl.6，ＤＢ名) H01P 1/209 H01P 7/06 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-240303 (JP, A) JP-A-50-105354 (JP, A) JP-A-3-111004 (JP, U) JP-A 169802 (JP, U) JP-B-43-15541 (JP, B1) U.S. Pat. No. 4,833,428 (US, A) U.S. Pat. No. 3,579,153 (US, A) U.S. Pat. A1) (58) Field surveyed (Int. Cl. 6 , DB name) H01P 1/209 H01P 7/06
Claims (1)
振器としての溝が設けられると共に、広幅面と垂直に突
出するように調整用ポストが設けられてなる帯域阻止濾
波器において、前記溝の長さを前記導波管内の横幅より
も短くし、前記溝と同一の管壁に前記ポストを設けるよ
うにしたことを特徴とする帯域阻止濾波器。1. A band rejection filter in which a groove as a resonator is provided on one tube wall of a wide surface in a rectangular waveguide, and an adjusting post is provided so as to project perpendicular to the wide surface. And a length of the groove is shorter than a width of the waveguide, and the post is provided on the same tube wall as the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15097493A JP2879290B2 (en) | 1993-06-23 | 1993-06-23 | Band stop filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15097493A JP2879290B2 (en) | 1993-06-23 | 1993-06-23 | Band stop filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0715211A JPH0715211A (en) | 1995-01-17 |
| JP2879290B2 true JP2879290B2 (en) | 1999-04-05 |
Family
ID=15508521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15097493A Expired - Fee Related JP2879290B2 (en) | 1993-06-23 | 1993-06-23 | Band stop filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2879290B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005047336A1 (en) | 2005-09-30 | 2007-04-12 | Ericsson Ab | Waveguide band stop filter |
| JP5340015B2 (en) * | 2009-04-27 | 2013-11-13 | 日本無線株式会社 | Waveguide bandpass filter |
-
1993
- 1993-06-23 JP JP15097493A patent/JP2879290B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0715211A (en) | 1995-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5572174A (en) | Dielectric resonator device having resonator electrodes with gaps, and method of manufacturing the same | |
| EP0886335A2 (en) | Dielectric waveguide | |
| JP2879290B2 (en) | Band stop filter | |
| JPS63100801A (en) | E-face type wide band composite filter | |
| JPS6319086B2 (en) | ||
| JP3146270B2 (en) | Band stop filter | |
| JP3298279B2 (en) | Dielectric resonator device, method of adjusting coupling coefficient thereof, and device for manufacturing the same | |
| JPH07212101A (en) | Dielectric resonator | |
| US7538640B2 (en) | Waveguide and attenuation pole waveguide bandpass filter | |
| JP2735906B2 (en) | Stripline filter | |
| JPH07283621A (en) | Directional coupler | |
| JP3239444B2 (en) | Dielectric microwave filter | |
| JPH083042Y2 (en) | NRD guide filter | |
| JPH0656922B2 (en) | Waveguide filter | |
| JP2768409B2 (en) | Dielectric waveguide directional coupler | |
| JPS641310A (en) | Dielectric resonator | |
| JPH0735442Y2 (en) | TM mode dielectric resonator device | |
| JPH0728723Y2 (en) | Dielectric coaxial resonator | |
| JPS63166301A (en) | Corrugate type filter | |
| JPH0486001A (en) | Rectangular waveguide type variable short-circuiting device | |
| JPH07202530A (en) | Dielectric resonator and filter device | |
| JPH02190001A (en) | Corrugate filter | |
| JPH0569275B2 (en) | ||
| JPS6327445Y2 (en) | ||
| JPS5927523B2 (en) | microwave circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19981201 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080129 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090129 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090129 Year of fee payment: 10 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090129 Year of fee payment: 10 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100129 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110129 Year of fee payment: 12 |
|
| LAPS | Cancellation because of no payment of annual fees |