JPH01162932U - - Google Patents
Info
- Publication number
- JPH01162932U JPH01162932U JP4962089U JP4962089U JPH01162932U JP H01162932 U JPH01162932 U JP H01162932U JP 4962089 U JP4962089 U JP 4962089U JP 4962089 U JP4962089 U JP 4962089U JP H01162932 U JPH01162932 U JP H01162932U
- Authority
- JP
- Japan
- Prior art keywords
- wave filter
- intermediate frequency
- output electrode
- input electrode
- frequency surface
- 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
- 238000010897 surface acoustic wave method Methods 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 4
Landscapes
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Description
第１図はこの考案の実施例を示す平面図、第２
図は従来の１基板２フイルタの弾性表面波装置の
平面図である。
１…基板、２…映像用フイルタの入力電極、３
…映像用フイルタの出力電極、４…音声用フイル
タの入力電極、５…音声用フイルタの出力電極。
Figure 1 is a plan view showing an embodiment of this invention;
The figure is a plan view of a conventional surface acoustic wave device with one substrate and two filters. 1... Board, 2... Input electrode of video filter, 3
... Output electrode of the video filter, 4... Input electrode of the audio filter, 5... Output electrode of the audio filter.
Claims (1)
極に対向して設けられた出力電極とからなる映像
中間周波数用表面波フイルタと、 この映像中間周波数用表面波フイルタと同一前
記圧電基板上に設けられた入力電極とこの入力電
極に対向して設けられた出力電極とからなる音声
中間周波数用表面波フイルタとを備え、 前記映像中間周波数用表面波フイルタと前記音
声中間周波数用表面波フイルタとは同一基板上に
並列的に配置され、 前記音声中間周波数用表面波フイルタの出力電
極と入力電極との最大交差比は、前記映像中間周
波数用表面波フイルタの出力電極と入力電極との
最大交差幅比に比べ小さく、 かつ前記音声中間周波数表面波フイルタの出力
電極の交差幅は、前記映像中間周波数用表面波フ
イルタの出力電極の交差幅よりも小さいことを特
徴とする弾性表面波装置。[Claims for Utility Model Registration] A surface wave filter for video intermediate frequencies consisting of an input electrode provided on a piezoelectric substrate and an output electrode provided opposite to the input electrode, and this surface wave filter for video intermediate frequencies. and an audio intermediate frequency surface wave filter comprising an input electrode provided on the same piezoelectric substrate and an output electrode provided opposite to the input electrode; The intermediate frequency surface acoustic wave filter is arranged in parallel on the same substrate, and the maximum intersection ratio between the output electrode and the input electrode of the audio intermediate frequency surface acoustic wave filter is greater than the output electrode of the video intermediate frequency surface acoustic wave filter. and an input electrode, and the intersection width of the output electrode of the audio intermediate frequency surface wave filter is smaller than the intersection width of the output electrode of the video intermediate frequency surface wave filter. surface acoustic wave device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4962089U JPH0326672Y2 (en) | 1989-04-28 | 1989-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4962089U JPH0326672Y2 (en) | 1989-04-28 | 1989-04-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01162932U true JPH01162932U (en) | 1989-11-14 |
| JPH0326672Y2 JPH0326672Y2 (en) | 1991-06-10 |
Family
ID=31275708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4962089U Expired JPH0326672Y2 (en) | 1989-04-28 | 1989-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0326672Y2 (en) |
-
1989
- 1989-04-28 JP JP4962089U patent/JPH0326672Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0326672Y2 (en) | 1991-06-10 |
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