JPS621422U - - Google Patents
Info
- Publication number
- JPS621422U JPS621422U JP9214385U JP9214385U JPS621422U JP S621422 U JPS621422 U JP S621422U JP 9214385 U JP9214385 U JP 9214385U JP 9214385 U JP9214385 U JP 9214385U JP S621422 U JPS621422 U JP S621422U
- Authority
- JP
- Japan
- Prior art keywords
- filter
- composite
- piezoelectric ceramic
- bandpass
- dielectric 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
第1図は本考案の複合フイルターの一実施例を
示す斜視図、第2図はその等価回路図、第3図は
従来の複合フイルターを示す斜視図、第4図はそ
の等価回路図である。
11……誘電体基板、12a,12b,12c
,12d,12e……電極、13……圧電セラミ
ツクフイルター、16a,16b,16c,16
d,16e,16f……リード端子。
Figure 1 is a perspective view showing an embodiment of the composite filter of the present invention, Figure 2 is its equivalent circuit diagram, Figure 3 is a perspective view of a conventional composite filter, and Figure 4 is its equivalent circuit diagram. . 11...Dielectric substrate, 12a, 12b, 12c
, 12d, 12e...electrode, 13...piezoelectric ceramic filter, 16a, 16b, 16c, 16
d, 16e, 16f...Lead terminals.
Claims (1)
ターあるいはハイパスフイルターが一枚の誘電体
基板上に形成された複合フイルターにおいて、少
くとも1つのバンドパスフイルターが圧電セラミ
ツクフイルターによつて構成され、他のフイルタ
ーがLCフイルターによつて構成されていること
を特徴とする複合フイルター。 (2) 前記LCフイルターが前記圧電セラミツク
スフイルターのスプリアス抑制に用いられている
ことを特徴とする実用新案登録請求の範囲第1項
記載の複合フイルター。[Claims for Utility Model Registration] (1) In a composite filter in which a bandpass filter and a lowpass filter or a highpass filter are formed on one dielectric substrate, at least one bandpass filter is formed by a piezoelectric ceramic filter. A composite filter characterized in that the other filter is composed of an LC filter. (2) The composite filter according to claim 1, wherein the LC filter is used to suppress spurious noise of the piezoelectric ceramic filter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9214385U JPS621422U (en) | 1985-06-17 | 1985-06-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9214385U JPS621422U (en) | 1985-06-17 | 1985-06-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS621422U true JPS621422U (en) | 1987-01-07 |
Family
ID=30648673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9214385U Pending JPS621422U (en) | 1985-06-17 | 1985-06-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS621422U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02121405A (en) * | 1988-10-31 | 1990-05-09 | Mitsubishi Mining & Cement Co Ltd | Noise filter |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5255354A (en) * | 1975-10-30 | 1977-05-06 | Nec Corp | Piezoelectric band erasing filter |
JPS59115609A (en) * | 1982-12-22 | 1984-07-04 | Murata Mfg Co Ltd | Piezoelectric filter |
-
1985
- 1985-06-17 JP JP9214385U patent/JPS621422U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5255354A (en) * | 1975-10-30 | 1977-05-06 | Nec Corp | Piezoelectric band erasing filter |
JPS59115609A (en) * | 1982-12-22 | 1984-07-04 | Murata Mfg Co Ltd | Piezoelectric filter |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02121405A (en) * | 1988-10-31 | 1990-05-09 | Mitsubishi Mining & Cement Co Ltd | Noise filter |
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