JPH0453322U - - Google Patents
Info
- Publication number
- JPH0453322U JPH0453322U JP9436390U JP9436390U JPH0453322U JP H0453322 U JPH0453322 U JP H0453322U JP 9436390 U JP9436390 U JP 9436390U JP 9436390 U JP9436390 U JP 9436390U JP H0453322 U JPH0453322 U JP H0453322U
- Authority
- JP
- Japan
- Prior art keywords
- acoustic wave
- surface acoustic
- wave filter
- filter device
- direct current
- 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
- 238000010897 surface acoustic wave method Methods 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Description
第１図は本考案の一実施例を示す機能ブロツク
図。第２図は従来の弾性表面波フイルタ素子の構
造を示す分解斜視図。第３図は従来の弾性表面波
フイルタ素子の機能ブロツク図。
１１……コンデンサ、２１……入力リード端子
、２３……入力側信号線回路、２５……ボンデイ
ングワイヤ、２７……圧電基板、２９……入力ト
ランスジユーサ、３１……出力トランスジユーサ
、３３……出力側信号線回路、３５……出力リー
ド端子、３７……パツケージ。
FIG. 1 is a functional block diagram showing an embodiment of the present invention. FIG. 2 is an exploded perspective view showing the structure of a conventional surface acoustic wave filter element. FIG. 3 is a functional block diagram of a conventional surface acoustic wave filter element. DESCRIPTION OF SYMBOLS 11... Capacitor, 21... Input lead terminal, 23... Input side signal line circuit, 25... Bonding wire, 27... Piezoelectric substrate, 29... Input transducer, 31... Output transducer, 33 ...Output side signal line circuit, 35...Output lead terminal, 37...Package.
Claims (1)
出力トランスジユーサを形成した弾性表面波フイ
ルタ素子と、該弾性表面波フイルタ素子と入出力
リード端子とを接続する信号線とをパツケージ内
に備えた弾性表面波フイルタ装置において、 前記入力トランスジユーサの前段および前記出
力トランスジユーサの後段の前記各信号線上に、
直列に直流成分を阻止する直流防止素子を接続し
たことを特徴とする弾性表面波フイルタ装置。 (2) 請求項１に記載の弾性表面波フイルタ装置
において、 弾性表面波フイルタ素子および直流防止素子を
含む信号線回路をパツケージ内に収容したことを
特徴とする弾性表面波フイルタ装置。[Claims for Utility Model Registration] (1) A surface acoustic wave filter element in which an input transducer and an output transducer are formed on a piezoelectric substrate, and signals for connecting the surface acoustic wave filter element and input/output lead terminals. In the surface acoustic wave filter device, the surface acoustic wave filter device includes a line in a package, on each of the signal lines before the input transducer and after the output transducer,
A surface acoustic wave filter device characterized in that a direct current prevention element for blocking a direct current component is connected in series. (2) The surface acoustic wave filter device according to claim 1, wherein a signal line circuit including a surface acoustic wave filter element and a direct current prevention element is housed in a package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9436390U JPH0453322U (en) | 1990-09-07 | 1990-09-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9436390U JPH0453322U (en) | 1990-09-07 | 1990-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0453322U true JPH0453322U (en) | 1992-05-07 |
Family
ID=31832249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9436390U Pending JPH0453322U (en) | 1990-09-07 | 1990-09-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453322U (en) |
-
1990
- 1990-09-07 JP JP9436390U patent/JPH0453322U/ja active Pending
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