JPS623118U - - Google Patents
Info
- Publication number
- JPS623118U JPS623118U JP9409485U JP9409485U JPS623118U JP S623118 U JPS623118 U JP S623118U JP 9409485 U JP9409485 U JP 9409485U JP 9409485 U JP9409485 U JP 9409485U JP S623118 U JPS623118 U JP S623118U
- Authority
- JP
- Japan
- Prior art keywords
- ceramic filter
- capacitor
- utility
- model registration
- stages
- 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
- 239000000919 ceramic Substances 0.000 claims description 22
- 239000000758 substrate Substances 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 14
- 238000005259 measurement Methods 0.000 description 3
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
第１図は本考案に係るセラミツクフイルタの電
気的等価回路図、第２図は本考案に係るセラミツ
クフイルタの平面図、第３図は同じくその底面図
、第４図は第２図及び第３図に示したセラミツク
フイルタの周波数―振幅特性及びＧＤＴ特性を示
す図、第５図は同じくその測定回路図、第６図は
従来のセラミツクフイルタと本考案に係るセラミ
ツクフイルタとの組合せた場合の周波数―振幅特
性及びＧＤＴ特性を示す図、第７図は同じくその
測定回路図、第８図は本考案に係るセラミツクフ
イルタの別の実施例における電気的等価回路図、
第９図は同じく別の実施例における電気的等価回
路図、第１０図は同じくその周波数―振幅特性及
びＧＤＴ特性を示す図、第１１図は従来のセラミ
ツクフイルタの電気的等価回路図、第１２図は従
来のセラミツクフイルタの平面図、第１３図は同
じくその底面図、第１４図は第１１図〜第１３図
に示した従来のセラミツクフイルタの周波数―振
幅特性及びＧＤＴ特性を示す図、第１５図は従来
のセラミツクフイルタを複数個用いた場合の周波
数―振幅特性及びＧＤＴ特性を示す図、第１６図
は同じくその測定回路図である。
１……圧電基板、２１〜２３，３１〜３３……
駆動電極、８〜１０……抵抗体。
Fig. 1 is an electrical equivalent circuit diagram of a ceramic filter according to the present invention, Fig. 2 is a plan view of the ceramic filter according to the present invention, Fig. 3 is a bottom view thereof, and Fig. 4 is a diagram showing the diagrams of Figs. 2 and 3. A diagram showing the frequency-amplitude characteristics and GDT characteristics of the ceramic filter shown in the figure, FIG. 5 is the same measurement circuit diagram, and FIG. 6 is the frequency when the conventional ceramic filter and the ceramic filter according to the present invention are combined. - A diagram showing amplitude characteristics and GDT characteristics, FIG. 7 is a measurement circuit diagram thereof, and FIG. 8 is an electrical equivalent circuit diagram of another embodiment of the ceramic filter according to the present invention.
FIG. 9 is an electrical equivalent circuit diagram of another embodiment, FIG. 10 is a diagram showing its frequency-amplitude characteristics and GDT characteristics, FIG. 11 is an electrical equivalent circuit diagram of a conventional ceramic filter, and FIG. The figure is a plan view of a conventional ceramic filter, FIG. 13 is a bottom view thereof, and FIG. 14 is a diagram showing the frequency-amplitude characteristics and GDT characteristics of the conventional ceramic filter shown in FIGS. 11 to 13. FIG. 15 is a diagram showing frequency-amplitude characteristics and GDT characteristics when a plurality of conventional ceramic filters are used, and FIG. 16 is a measurement circuit diagram thereof. 1...Piezoelectric substrate, 21-23, 31-33...
Drive electrode, 8-10...Resistor.
Claims (1)
続してなるセラミツクフイルタにおいて、前記セ
ラミツクフイルタ素子の段間にＴ型またはπ型の
何れかの回路構成でなる抵抗回路を挿入したこと
を特徴とするセラミツクフイルタ。 (2) 前記抵抗回路は、前記セラミツクフイルタ
素子に対して並列的に入る抵抗に対して、並列的
に接続されたコンデンサを含んでいることを特徴
とする実用新案登録請求の範囲第１項に記載のセ
ラミツクフイルタ。 (3) 前記セラミツクフイルタ素子、抵抗回路及
びコンデンサは、同一の基板上に形成されている
ことを特徴とする実用新案登録請求の範囲第１項
または第２項に記載のセラミツクフイルタ。 (4) 前記抵抗回路を持つ前記一対のセラミツク
フイルタ素子は、その後段に、複数個のセラミツ
クフイルタ素子を他段接続し、かつ、段間にコン
デンサを挿入接続したセラミツクフイルタが接続
されていることを特徴とする実用新案登録請求の
範囲第１項または第２項に記載のセラミツクフイ
ルタ。[Claims for Utility Model Registration] (1) In a ceramic filter formed by connecting a plurality of ceramic filter elements in multiple stages, a resistor circuit having either a T-type or π-type circuit configuration between the stages of the ceramic filter elements. A ceramic filter characterized by inserting. (2) According to claim 1 of the utility model registration claim, the resistor circuit includes a capacitor connected in parallel to a resistor connected in parallel to the ceramic filter element. Ceramic filter described. (3) The ceramic filter according to claim 1 or 2, wherein the ceramic filter element, the resistor circuit, and the capacitor are formed on the same substrate. (4) The pair of ceramic filter elements having the resistance circuit are connected at the subsequent stage thereof to a ceramic filter in which a plurality of ceramic filter elements are connected to another stage and a capacitor is inserted and connected between the stages. A ceramic filter according to claim 1 or 2 of the utility model registration claim, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985094094U JPH0718185Y2 (en) | 1985-06-20 | 1985-06-20 | Ceramic filter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985094094U JPH0718185Y2 (en) | 1985-06-20 | 1985-06-20 | Ceramic filter circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS623118U true JPS623118U (en) | 1987-01-09 |
| JPH0718185Y2 JPH0718185Y2 (en) | 1995-04-26 |
Family
ID=30652350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985094094U Expired - Lifetime JPH0718185Y2 (en) | 1985-06-20 | 1985-06-20 | Ceramic filter circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718185Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53139244U (en) * | 1977-04-07 | 1978-11-04 | ||
| JPS5642418A (en) * | 1979-09-13 | 1981-04-20 | Murata Mfg Co Ltd | Bulk wave piezoelectric resonator device |
| JPS572727U (en) * | 1980-06-02 | 1982-01-08 |
-
1985
- 1985-06-20 JP JP1985094094U patent/JPH0718185Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53139244U (en) * | 1977-04-07 | 1978-11-04 | ||
| JPS5642418A (en) * | 1979-09-13 | 1981-04-20 | Murata Mfg Co Ltd | Bulk wave piezoelectric resonator device |
| JPS572727U (en) * | 1980-06-02 | 1982-01-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0718185Y2 (en) | 1995-04-26 |
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