JPS6184101A - Microwave filter using dielectric resonator - Google Patents
Microwave filter using dielectric resonatorInfo
- Publication number
- JPS6184101A JPS6184101A JP20561684A JP20561684A JPS6184101A JP S6184101 A JPS6184101 A JP S6184101A JP 20561684 A JP20561684 A JP 20561684A JP 20561684 A JP20561684 A JP 20561684A JP S6184101 A JPS6184101 A JP S6184101A
- Authority
- JP
- Japan
- Prior art keywords
- resonator
- dielectric
- electromagnetic field
- center
- dielectric resonator
- 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
- 239000004020 conductor Substances 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 230000005672 electromagnetic field Effects 0.000 claims abstract description 8
- 239000003989 dielectric material Substances 0.000 claims description 4
- 230000007423 decrease Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 2
- 238000010586 diagram 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
- 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】
（産業上の利用分野）
この発明は誘電体共振器を用いたマイクロ波フィルタの
構造に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to the structure of a microwave filter using a dielectric resonator.
（従来の技術）
従来よシ、共振器に誘電体共振器すなわち高訪電率を有
する誘電体を用いた高周波フィルタが提案されている。(Prior Art) Conventionally, high frequency filters have been proposed in which a dielectric resonator, that is, a dielectric material having a high contact rate is used as a resonator.
誘電体共振器はストリップ線路共振器と同程度の大きさ
で共振器が実現出来、しかも無負荷Ｑは導波管共振器と
同程度のものが容易に得られるという利点がある。A dielectric resonator has the advantage that a resonator can be realized with a size comparable to that of a strip line resonator, and an unloaded Q of the same magnitude as a waveguide resonator can be easily obtained.
また、実際に製作する場合の加工工作もストリップ線路
共振器よシ複雑であるが、導波管共振器よシは容易であ
る。In addition, the actual manufacturing process is more complicated than that of a stripline resonator, but it is easier than that of a waveguide resonator.
しかし、誘電体共振器は温度特性が致命的に悪いという
欠点があったが、誘電体材料工学の進歩は、この問題を
解決しつつある。しだがって、誘電体共振器を用いた誘
電体フィルタの重要性は極めて大きい。このような理由
から誘電体共振器を使用したフィルタは今後増々利用さ
れると思われる。However, dielectric resonators had the drawback of fatally poor temperature characteristics, but advances in dielectric material engineering are beginning to solve this problem. Therefore, dielectric filters using dielectric resonators are extremely important. For these reasons, filters using dielectric resonators are expected to be used more and more in the future.
このような、誘電体共振器を用いたフィルタとして、本
願出願人よシ特開昭５４−３４４８号、特開昭５５−６
８７０２号、特開昭５６−１４４６０２号のものが提案
されている。As a filter using such a dielectric resonator, the applicant of the present application has disclosed Japanese Patent Application Laid-Open Nos. 54-3448 and 55-6.
No. 8702 and JP-A-56-144602 have been proposed.
従来より、誘電体共振器を用いたマイクロ波フィルタの
構成例を第２図に示す。金属ケースの両端に設けられた
入出力端子２１．２２及びそれらに接続される伝送線路
２３ 、２４’が配置され、この伝送線路２３．２４間
にコア状又は角柱状の各各が分離した誘電体共振器２５
，２６，２７゜２８が金属ケースの単一の面に配列され
ている。FIG. 2 shows an example of the configuration of a conventional microwave filter using a dielectric resonator. Input/output terminals 21, 22 provided at both ends of the metal case and transmission lines 23, 24' connected to them are arranged, and between the transmission lines 23, 24, a core-shaped or prismatic-shaped dielectric conductor is connected. body resonator 25
, 26, 27° 28 are arranged on a single surface of the metal case.
フィルタを構成するには、入出力の伝送線路２３゜２４
と誘電体共振器２５．２８との結合を所望の大きさに設
定する。この結合の設定は、共振器２５．２１１と伝送
線路２３．２４との間隔ｄを変えることによυ行ってい
る。すなわち間隔ｄを狭くすれば結合が大きくなシ、間
隔ｄｔ−広げれば結合は小さくなる。また誘電体共振器
２５，２６゜２７ 、２．！ｌ各々の間隔もフィルタの
実現に際して必要な結合度を得られる様な間隔に選定す
る必要がある。To configure the filter, input and output transmission lines 23°24
and the dielectric resonators 25 and 28 are set to a desired magnitude. This coupling is set by changing the distance d between the resonator 25.211 and the transmission line 23.24. That is, if the distance d is made narrower, the coupling becomes larger, and if the distance dt is made wider, the coupling becomes smaller. Also, dielectric resonators 25, 26°27, 2. ! It is also necessary to select the interval between each of them so as to obtain the necessary degree of coupling when realizing the filter.
この動作原理を簡単に説明する。第３図は電流と磁界の
関係を示す図であり、３ノは導体である。The principle of this operation will be briefly explained. FIG. 3 is a diagram showing the relationship between current and magnetic field, and 3 is a conductor.
電磁見学によると導体に電流Ｉが流れると電磁界が発生
する。この電流によシ発生した電磁界の大きさは導体か
らの距離が離れるに従って減少する。According to an electromagnetic study, when a current I flows through a conductor, an electromagnetic field is generated. The magnitude of the electromagnetic field generated by this current decreases as the distance from the conductor increases.
誘電体共振器と伝送線路との結合は電磁界を介して行な
われるので、誘電体共振器と伝送線路の距離を変えるこ
とによシ結合量を変化させることができる。これが第２
図に示す従来のフィルタにおいて間隔を小さくすると結
合量が大きくなる理由である。Since the dielectric resonator and the transmission line are coupled together via an electromagnetic field, the amount of coupling can be changed by changing the distance between the dielectric resonator and the transmission line. This is the second
This is the reason why in the conventional filter shown in the figure, the amount of coupling increases as the spacing decreases.
Claims (1)
前記中心導体に結合パターンを具備し前記中心導体間は
前記誘電体で充たされた複数の誘電体共振器により形成
するマイクロ波フィルタの複数を空間で電磁界結合した
ことを特徴とするマイクロ波フィルタ。The microwave is formed by forming a plurality of center conductors provided on a homogeneous single dielectric material, providing a coupling pattern on the center conductor, and forming a plurality of dielectric resonators filled with the dielectric material between the center conductors. A microwave filter characterized by electromagnetic field coupling of multiple filters in space.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20561684A JPS6184101A (en) | 1984-10-02 | 1984-10-02 | Microwave filter using dielectric resonator |
| US07/074,640 US4768003A (en) | 1984-09-28 | 1987-07-17 | Microwave filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20561684A JPS6184101A (en) | 1984-10-02 | 1984-10-02 | Microwave filter using dielectric resonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6184101A true JPS6184101A (en) | 1986-04-28 |
Family
ID=16509825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20561684A Pending JPS6184101A (en) | 1984-09-28 | 1984-10-02 | Microwave filter using dielectric resonator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6184101A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4768003A (en) * | 1984-09-28 | 1988-08-30 | Oki Electric Industry Co., Inc. | Microwave filter |
| US8308431B2 (en) | 2006-09-29 | 2012-11-13 | Jtekt Corporation | Turbocharger |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59114902A (en) * | 1982-12-21 | 1984-07-03 | Fujitsu Ltd | dielectric filter |
| JPS59119402A (en) * | 1982-12-27 | 1984-07-10 | Hitachi Ltd | Operation location selection circuit |
-
1984
- 1984-10-02 JP JP20561684A patent/JPS6184101A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59114902A (en) * | 1982-12-21 | 1984-07-03 | Fujitsu Ltd | dielectric filter |
| JPS59119402A (en) * | 1982-12-27 | 1984-07-10 | Hitachi Ltd | Operation location selection circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4768003A (en) * | 1984-09-28 | 1988-08-30 | Oki Electric Industry Co., Inc. | Microwave filter |
| US8308431B2 (en) | 2006-09-29 | 2012-11-13 | Jtekt Corporation | Turbocharger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6346867B2 (en) | Dielectric waveguide resonator, dielectric waveguide filter, and method of adjusting the characteristics thereof | |
| US4963844A (en) | Dielectric waveguide-type filter | |
| CA2302951C (en) | Multimode dielectric resonator device, dielectric filter, composite dielectric filter, synthesizer, distributor, and communication device | |
| EP0783188A1 (en) | Dielectric filter | |
| JPS6180901A (en) | Microwave filter using dielectric resonator | |
| JPH0144041B2 (en) | ||
| US6201456B1 (en) | Dielectric filter, dielectric duplexer, and communication device, with non-electrode coupling parts | |
| JPH0234001A (en) | Band stop filter | |
| JPS6184101A (en) | Microwave filter using dielectric resonator | |
| US3560887A (en) | Directional filter comprising a resonant loop coupled to a transmission line pair | |
| JPS63278401A (en) | dielectric filter | |
| WO1999018630A1 (en) | Slot line band pass filter | |
| JPH0134404B2 (en) | ||
| JPS6453603A (en) | Polar type dielectric filter | |
| JPH071841Y2 (en) | Dielectric filter | |
| JPS6162203A (en) | Microwave filter using dielectric resonator | |
| CN100334776C (en) | Bandpass filter | |
| JPH03187502A (en) | Interdigital filter | |
| JPH05175701A (en) | Band pass filter | |
| JPS6354802A (en) | Dielectric filter | |
| JPH11330812A (en) | Coupler | |
| JPH0237801A (en) | Band-pass filter | |
| JPH05335807A (en) | Coaxial microwave filter | |
| JPH0239121B2 (en) | MAIKURO HAKAIRO | |
| JPH01319301A (en) | Polar dielectric filter |