JP2583849B2 - Stripline resonator - Google Patents
Stripline resonatorInfo
- Publication number
- JP2583849B2 JP2583849B2 JP61024352A JP2435286A JP2583849B2 JP 2583849 B2 JP2583849 B2 JP 2583849B2 JP 61024352 A JP61024352 A JP 61024352A JP 2435286 A JP2435286 A JP 2435286A JP 2583849 B2 JP2583849 B2 JP 2583849B2
- Authority
- JP
- Japan
- Prior art keywords
- resonator
- parallel
- strip line
- stripline resonator
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、各種通信機器、測定器等の高周波における
フィルタ、発振器に利用されるストリップ線路（マイク
ロストリップ線路を含む）共振器に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stripline (including a microstrip line) resonator used for a high-frequency filter and an oscillator of various communication devices and measuring instruments.
従来の技術 ストリップ線路、あるいはマイクロストリップ線路を
用いた小型で損失の少ない共振器として、特公昭54−42
574号公報に記載されているリング形あるいはループ状
共振器が知られている。第３図にその一例を示す。2. Description of the Related Art A small and low-loss resonator using a stripline or a microstrip line has been developed as a small resonator having a small loss.
A ring-shaped or loop-shaped resonator described in Japanese Patent Publication No. 574 is known. FIG. 3 shows an example.
第３図において、101は短形ループ状に構成されたマ
イクロ・ストリップ線路、107は集中定数の容量素子で
ある。In FIG. 3, reference numeral 101 denotes a microstrip line formed in a short loop shape, and 107 denotes a lumped-constant capacitive element.
この場合、形状は短形であるが、電気的特性はリング
形と同一であるので、ここでは短形のものだけ説明す
る。また線路もストリップ、マイクロ・ストリップとも
に適用可能であるため、これも特に区別しないで説明す
る。In this case, the shape is a short shape, but the electrical characteristics are the same as those of the ring shape. Therefore, only the short shape will be described here. Since the line can be applied to both the strip and the microstrip, the description will be made without particular distinction.
この共振器の高周波的な接地がないこと、ループ状と
なるための放射損失が低減されること、容量素子107を
装架することにより通常の一波長形のリング共振器より
はるかに小形化される等の特長をもつ。There is no high-frequency grounding of this resonator, the radiation loss due to the loop is reduced, and the mounting of the capacitive element 107 makes it much smaller than a normal single-wavelength ring resonator. Features such as
発明が解決しようとする問題点 しかし、第３図のような構成だと、容量を精度よく、
かつ再現性よく作らないと共振周波数がバラツク可能性
がある。Problems to be Solved by the Invention However, with the configuration shown in FIG.
If it is not made with good reproducibility, the resonance frequency may vary.
また周波数が高く（1GHz以上）なると、第３図の容量
素子107の容量値を精度よく実現するのはきわめて困難
であり、何らかの周波数調整が要求されるが、このため
に部品点数が増大し、コスト高となり、かつ損失等の劣
化が無視されなくなる等の問題点を有している。When the frequency is increased (1 GHz or more), it is extremely difficult to accurately realize the capacitance value of the capacitance element 107 in FIG. 3, and some kind of frequency adjustment is required. There are problems that the cost becomes high and that deterioration such as loss is not ignored.
本発明は、上記従来技術の問題点に鑑み、共振周波数
のバラツキの低減、損失の低減を行うとともに、フィル
タ等に利用した際の無調整化と低損失化を目的とするも
のである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the related art, and has as its object to reduce variations in resonance frequency and loss, and to achieve no adjustment and low loss when used in a filter or the like.
問題点を解決するための手段 本発明は両端開放の環状型ストリップ線路の当該両開
放端の先端部分を互いに平行に対向させ、当該ストリッ
プ線路により平行結合する平行結合回路を設けたもので
ある。Means for Solving the Problems The present invention is provided with a parallel coupling circuit in which the end portions of both open ends of an annular strip line whose both ends are open are opposed to each other in parallel, and parallel coupling is performed by the strip lines.
作用 本発明は、従来の構造の共振器に不可欠であった集中
定数キャパシタを環状型ストリップ線路の当該ストリッ
プ線路で平行結合する平行結合回路とすることにより、
容量装架共振器の特長をもったまま、その共振周波数の
バラツキをおさえ無調整化するものである。The present invention provides a lumped-parameter capacitor, which is indispensable for a resonator having a conventional structure, as a parallel coupling circuit that is parallel-coupled to the annular strip line by the strip line.
It is intended to suppress the variation of the resonance frequency and to make no adjustment while maintaining the characteristics of the capacitive mounting resonator.
また、平行結合部はフォト・エッチング技術で精度よ
く加工できるため、再現性が極めて良好で、共振周波数
のバラツキも著しく低減できる。In addition, since the parallel coupling portion can be processed with high precision by the photo-etching technique, reproducibility is extremely good and variation in resonance frequency can be significantly reduced.
実 施 例 第１図は本発明の一実施例におけるストリップ線路共
振器の平面図である。Embodiment FIG. 1 is a plan view of a strip line resonator according to an embodiment of the present invention.
第１図において、101,102は単一ストリップ線路部、
平行結合ストリップ線路部であり、いずれもアルミナ等
の誘導体基板上パターン化される。分布結合によるこの
平行結合ストリップ線路部102は第３図の容量素子107を
おきかえたと考えることができる。周波数が高いと結合
長を小さく、結合間隔を広く設計できるため、周波数の
バラツキが小さくなる。また集中定数に比し同結合スト
リップ部102で生じる損失も極めて小さくなる。実際の
設計においては、平行結合ストリップ線路部102の奇偶
モードインピーダンスとZoo,Zoeとし、単一ストリップ
線路部101の線路インピーダンスをZoとするとき、Zo 2≒
Zoe・Zooに選んで設計すると平行結合ストリップ線路部
102と、単一ストリップ線路部101の接続部での反射が小
さくなり、共振器の特性が安定化される。In FIG. 1, 101 and 102 are single strip line portions,
These are parallel-coupled stripline portions, all of which are patterned on a dielectric substrate such as alumina. It can be considered that the parallel coupling strip line section 102 by distributed coupling has replaced the capacitance element 107 in FIG. If the frequency is high, the coupling length can be reduced and the coupling interval can be designed to be wide, so that the variation in frequency is reduced. Further, the loss generated in the coupling strip portion 102 is extremely small as compared with the lumped constant. In an actual design, when the odd-even mode impedance of the parallel coupling strip line section 102 and Z oo and Z oe and the line impedance of the single strip line section 101 are Z o , Z o 2 ≒
Parallel coupling strip line portion to design Elect Z oe · Z oo
The reflection at the connection between the single strip line section 101 and the single strip line section 101 is reduced, and the characteristics of the resonator are stabilized.
第２図は、第１図の共振器を帯域通過フィルタに応用
した実施例を示すものである。第２図において、103,10
4は本発明の一実施例における共振器、105,106は入出力
端子である。FIG. 2 shows an embodiment in which the resonator shown in FIG. 1 is applied to a band-pass filter. In FIG. 2, 103,10
4 is a resonator in one embodiment of the present invention, and 105 and 106 are input / output terminals.
第２図の構成によれば、入出力結合および共振器間結
合とも分布結合で実現されるため、無調整で低損失なフ
ィルタが構成できる。According to the configuration of FIG. 2, since both input-output coupling and coupling between resonators are realized by distributed coupling, a low-loss filter without adjustment can be configured.
発明の効果 以上述べたように本発明は従来の集中定数容量装架リ
ング形共振器の容量素子を環状型ストリップ線路の当該
ストリップ線路で平行結合する平行結合回路とすること
により、共振周波数のバラツキの低減、損失の低減が可
能となり、フィルタ等に利用した場合無調整化と低損失
化が実現でき、その工業的価値は極めて大である。Effects of the Invention As described above, the present invention provides a lumped-constant capacitor-mounted ring-type resonator having a parallel coupling circuit in which a ring-shaped strip line is parallel-coupled by the strip line, thereby achieving variation in resonance frequency. And loss can be reduced, and when used for a filter or the like, no adjustment and low loss can be realized, and its industrial value is extremely large.
第１図は本発明の実施例におけるストリップ線路共振器
の平面図、第２図は同ストリップ線路共振器を用いた帯
域通過フィルタの平面図、第３図は従来のリング形共振
器の平面図である。 101……単一ストリップ線路部、102……平行結合ストリ
ップ線路部。FIG. 1 is a plan view of a strip line resonator according to an embodiment of the present invention, FIG. 2 is a plan view of a band-pass filter using the strip line resonator, and FIG. 3 is a plan view of a conventional ring resonator. It is. 101: a single strip line section; 102: a parallel coupled strip line section.
フロントページの続き (56)参考文献 特開 昭52−104033（ＪＰ，Ａ) Ｇ．Ｌ．Ｍａｔｔｈａｅｉ，Ｌ．Ｙｏ ｕｎｇ，ａｎｄ Ｅ．Ｊｏｎｅｓ，“Ｍ ｉｃｒｏｗａｖｅ ｆｉｌｔｅｒｓ Ｉ ｍｐｅｄａｎｃｅ Ｍａｔｃｈｉｎｇ Ｎｅｔｗｏｒｋ ａｎｄ Ｃｏｕｐｌｉ ｎｇ Ｓｔｒｕｃｔｕｒｅ，“Ｎｅｗ Ｙｏｒｋ，ＭｃＧｒａｗ−Ｈｉｌｌ, 1964．（第226頁のＦＩＧ５．09−２ （ｂ）)Continuation of front page (56) References JP-A-52-104033 (JP, A) L. Matthaei, L .; Young, and E.L. Jones, "Microwave filters Impedance Matching Network and Coupling Structure," New York, McGraw-Hill, 1964. (FIG. 5.09-2 (b) on page 226)
Claims (2)
開放端の先端部分を互いに平行に対向させることによ
り、当該両開放端間の直列容量となる平行結合回路を形
成したことを特徴とするストリップ線路共振器。1. A parallel coupling circuit having a series capacitance between both open ends by forming the ends of both open ends of an annular strip line having both open ends facing each other in parallel. Stripline resonator.
ダンスをそれぞれZoo、Zoeとし、平行結合しない部分の
線路インピーダンスをZoとするとき、これらのインピー
ダンスにZo 2≒Zoo・Zoeなる関係があることを特徴とす
る特許請求の範囲第１項記載のストリップ線路共振器。2. When the odd and even mode impedances of the lines of the parallel coupling circuit are Z oo and Z oe , respectively, and the line impedance of the portion not parallel coupled is Z o , these impedances are represented by Z o 2 ≒ Z oo · Z oe 2. The stripline resonator according to claim 1, wherein the stripline resonator has the following relationship.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61024352A JP2583849B2 (en) | 1986-02-06 | 1986-02-06 | Stripline resonator |
| US06/940,114 US4749963A (en) | 1985-12-11 | 1986-12-09 | Oscillator having stripline loop resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61024352A JP2583849B2 (en) | 1986-02-06 | 1986-02-06 | Stripline resonator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62183202A JPS62183202A (en) | 1987-08-11 |
| JP2583849B2 true JP2583849B2 (en) | 1997-02-19 |
Family
ID=12135799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61024352A Expired - Lifetime JP2583849B2 (en) | 1985-12-11 | 1986-02-06 | Stripline resonator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2583849B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0244802A (en) * | 1988-08-04 | 1990-02-14 | Matsushita Electric Ind Co Ltd | Resonator |
| JPH02272802A (en) * | 1989-04-13 | 1990-11-07 | Matsushita Electric Ind Co Ltd | Resonator |
| JP3861806B2 (en) * | 2001-12-18 | 2006-12-27 | 株式会社村田製作所 | Resonator, filter, duplexer, and communication device |
| WO2013168377A1 (en) * | 2012-05-10 | 2013-11-14 | 日本電気株式会社 | Waveguide structure having ebg characteristic |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52104033A (en) * | 1976-02-26 | 1977-09-01 | Matsushita Electric Ind Co Ltd | Electronic tuning circuit |
-
1986
- 1986-02-06 JP JP61024352A patent/JP2583849B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| Ｇ．Ｌ．Ｍａｔｔｈａｅｉ，Ｌ．Ｙｏｕｎｇ，ａｎｄ Ｅ．Ｊｏｎｅｓ，"Ｍｉｃｒｏｗａｖｅ ｆｉｌｔｅｒｓ Ｉｍｐｅｄａｎｃｅ Ｍａｔｃｈｉｎｇ Ｎｅｔｗｏｒｋ ａｎｄ Ｃｏｕｐｌｉｎｇ Ｓｔｒｕｃｔｕｒｅ，"Ｎｅｗ Ｙｏｒｋ，ＭｃＧｒａｗ−Ｈｉｌｌ，１９６４．（第２２６頁のＦＩＧ５．０９−２（ｂ）） |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62183202A (en) | 1987-08-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |