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
Application number
JP9214385U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP9214385U priority Critical patent/JPS621422U/ja
Publication of JPS621422U publication Critical patent/JPS621422U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【実用新案登録請求の範囲】 (1) バンドパスフイルターと、ローパスフイル
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.
JP9214385U 1985-06-17 1985-06-17 Pending JPS621422U (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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