JPS6195120U - - Google Patents
Info
- Publication number
- JPS6195120U JPS6195120U JP1984179179U JP17917984U JPS6195120U JP S6195120 U JPS6195120 U JP S6195120U JP 1984179179 U JP1984179179 U JP 1984179179U JP 17917984 U JP17917984 U JP 17917984U JP S6195120 U JPS6195120 U JP S6195120U
- Authority
- JP
- Japan
- Prior art keywords
- internal element
- series
- arm
- parallel
- insulating substrate
- 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.)
- Granted
Links
- 238000013016 damping Methods 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 10
- 239000011253 protective coating Substances 0.000 description 1
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
第１図は、この考案の一実施例を説明するため
の概略斜視図である。第２図は、圧電共振子の等
価回路を示す図である。第３図および第４図は、
従来のラダー型フイルタにおける振幅特性ならび
に群遅延特性を示す図である。第５図は、この発
明の一実施例における等価回路図である。第６図
は、直列腕の圧電共振子のインピーダンス曲線を
示す図であり、第７図は並列腕の圧電共振子のイ
ンピーダンス曲線を示す図であり、第８図は同じ
く位相特性を示す図であり、第９図は同じく位相
特性を示す図である。第１０図は、この発明の一
実施例のラダー型フイルタの位相特性を示す図で
あり、第１１図は同じく群遅延特性を示す図であ
り、第１２図ないし第１５図はこの発明の一実施
例における実測特性図である。第１６図は、第１
図に示した実施例において用いられる外ケースを
示す斜視図である。第１７図はこの発明の一実施
例に用いられる絶縁基板の平面図であり、第１８
図は保護コーテイングを設けた状態の同じく絶縁
基板の平面図である。
図において、１１はケース、１３は絶縁基板、
Xs1,Xs2,…Ｘｓｎは直列共振子、Xp1,Xp2,…Ｘｐ
(n-1)は並列共振子、Ｒｓ１，Ｒｓ２，…Ｒｓｎ
は並列ダンピング抵抗、Ｒｐ１，Ｒｐ２，…Ｒｐ
(n-1)は直列ダンピング抵抗。
FIG. 1 is a schematic perspective view for explaining one embodiment of this invention. FIG. 2 is a diagram showing an equivalent circuit of a piezoelectric resonator. Figures 3 and 4 are
FIG. 3 is a diagram showing amplitude characteristics and group delay characteristics of a conventional ladder filter. FIG. 5 is an equivalent circuit diagram in one embodiment of the present invention. Fig. 6 is a diagram showing the impedance curve of the piezoelectric resonator in the series arm, Fig. 7 is a diagram showing the impedance curve of the piezoelectric resonator in the parallel arm, and Fig. 8 is a diagram showing the phase characteristics as well. 9 is a diagram similarly showing the phase characteristics. FIG. 10 is a diagram showing the phase characteristics of a ladder type filter according to an embodiment of the present invention, FIG. 11 is a diagram showing the group delay characteristics as well, and FIGS. It is an actually measured characteristic diagram in an example. Figure 16 shows the first
FIG. 3 is a perspective view showing an outer case used in the embodiment shown in the figures. FIG. 17 is a plan view of an insulating substrate used in one embodiment of the present invention, and FIG.
The figure is a top view of the same insulating substrate with a protective coating provided thereon. In the figure, 11 is a case, 13 is an insulating board,
Xs 1 ,Xs 2 ,...Xsn are series resonators, Xp 1 ,Xp 2 ,...Xp
( n-1 ) are parallel resonators, Rs 1 , Rs 2 ,...Rsn
are parallel damping resistances, Rp 1 , Rp 2 ,...Rp
( n-1 ) is the series damping resistance.
Claims (1)
に並列にダンピング抵抗が存在し、並列腕に相当
する部分には並列腕に直列にダンピング抵抗が存
在するラダー型フイルタであつて、 各共振子および端子板を含む内部素子と、 該内部素子を収納し、開口を有するケースと、 前記内部素子を収納したケースの開口側で、前
記内部素子を覆うように、かつ前記内部素子の並
ぶ方向に延びるように設けられた絶縁基板とを備
え、 前記絶縁基板の主面には各ダンピング抵抗、該
ダンピング抵抗と各内部素子とを接続するための
導電パターン、ならびにアース側の結線を行なう
ための導電パターンが形成されている、ラダー型
フイルタ。[Claims for Utility Model Registration] An equivalent circuit in which a damping resistance exists in parallel to the series arm in the part corresponding to the series arm, and a damping resistance exists in series with the parallel arm in the part corresponding to the parallel arm. type filter, comprising an internal element including each resonator and a terminal plate, a case housing the internal element and having an opening, and an opening side of the case housing the internal element covering the internal element. , and an insulating substrate provided to extend in the direction in which the internal elements are lined up, the main surface of the insulating substrate having each damping resistor, a conductive pattern for connecting the damping resistor and each internal element, and A ladder type filter that has a conductive pattern formed on it for connection on the ground side.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984179179U JPH0346586Y2 (en) | 1984-11-26 | 1984-11-26 | |
| US06/711,210 US4651109A (en) | 1984-06-12 | 1985-03-13 | Piezoelectric resonance component having an improved group delay time characteristic |
| CA000476871A CA1231398A (en) | 1984-06-12 | 1985-03-19 | Piezoelectric resonance component having an improved group delay time characteristic |
| CN85101648A CN85101648B (en) | 1984-11-26 | 1985-04-01 | Piezoelectric resonance component having an improved group delay time characteristic |
| DE19853520895 DE3520895A1 (en) | 1984-06-12 | 1985-06-11 | PIEZOELECTRIC RESONATOR DEVICE WITH FLAT GROUP RUN TIME CHARACTERISTICS |
| US06/887,925 US4716377A (en) | 1984-06-12 | 1986-07-22 | Piezoelectric resonance component having an improved group delay time characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984179179U JPH0346586Y2 (en) | 1984-11-26 | 1984-11-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6195120U true JPS6195120U (en) | 1986-06-19 |
| JPH0346586Y2 JPH0346586Y2 (en) | 1991-10-02 |
Family
ID=16061315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984179179U Expired JPH0346586Y2 (en) | 1984-06-12 | 1984-11-26 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0346586Y2 (en) |
| CN (1) | CN85101648B (en) |
-
1984
- 1984-11-26 JP JP1984179179U patent/JPH0346586Y2/ja not_active Expired
-
1985
- 1985-04-01 CN CN85101648A patent/CN85101648B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85101648B (en) | 1988-02-03 |
| JPH0346586Y2 (en) | 1991-10-02 |
| CN85101648A (en) | 1986-05-10 |
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