JPS6442622U - - Google Patents
Info
- Publication number
- JPS6442622U JPS6442622U JP13801287U JP13801287U JPS6442622U JP S6442622 U JPS6442622 U JP S6442622U JP 13801287 U JP13801287 U JP 13801287U JP 13801287 U JP13801287 U JP 13801287U JP S6442622 U JPS6442622 U JP S6442622U
- Authority
- JP
- Japan
- Prior art keywords
- surface wave
- filter
- wave resonator
- substrate
- resonator filters
- 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
- 239000003990 capacitor Substances 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 239000010408 film Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims 2
- 238000010030 laminating Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Description
第１図と第２図はこの考案の実施例である表面
波フイルタの構造を表す図であり、第１図はその
部分平面図、第２図は特に薄膜コンデンサ部分の
縦断面図である。第３図は同表面波フイルタの振
幅特性を表す図、第４図は複数の表面波共振子フ
イルタを縦続接続した一般的なフイルタの回路図
である。
１０，２０……表面波共振子フイルタ、３０…
…薄膜コンデンサ、３１……下部電極、３２……
感光性樹脂膜、３３……上部電極。
FIGS. 1 and 2 are diagrams showing the structure of a surface wave filter that is an embodiment of this invention, with FIG. 1 being a partial plan view thereof, and FIG. 2 being a vertical cross-sectional view, particularly of the thin film capacitor portion. FIG. 3 is a diagram showing the amplitude characteristics of the same surface wave filter, and FIG. 4 is a circuit diagram of a general filter in which a plurality of surface wave resonator filters are connected in cascade. 10, 20...Surface wave resonator filter, 30...
...Thin film capacitor, 31... Lower electrode, 32...
Photosensitive resin film, 33...upper electrode.
Claims (1)
ンスデユーサを備えた複数の表面波共振子フイル
タを同一基板上に配列するとともに、各表面波共
振子フイルタを縦続接続したフイルタにおいて、
感光性樹脂膜を二つの電極間に積層して成る薄膜
コンデンサを前記基板上に形成するとともに、前
記各表面波共振子フイルタ間に電気的に接続した
ことを特徴とする表面波フイルタ。 In a filter in which a plurality of surface wave resonator filters equipped with interdigital transducers for signal input and output are arranged on the same substrate, and each surface wave resonator filter is connected in cascade,
A surface wave filter comprising: a thin film capacitor formed by laminating a photosensitive resin film between two electrodes; formed on the substrate; and electrically connected between each of the surface wave resonator filters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13801287U JPS6442622U (en) | 1987-09-09 | 1987-09-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13801287U JPS6442622U (en) | 1987-09-09 | 1987-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6442622U true JPS6442622U (en) | 1989-03-14 |
Family
ID=31399962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13801287U Pending JPS6442622U (en) | 1987-09-09 | 1987-09-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6442622U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000209061A (en) * | 1999-01-12 | 2000-07-28 | Toshiba Corp | Surface acoustic wave element and device |
-
1987
- 1987-09-09 JP JP13801287U patent/JPS6442622U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000209061A (en) * | 1999-01-12 | 2000-07-28 | Toshiba Corp | Surface acoustic wave element and device |