JPS5939533U - electric filter - Google Patents

electric filter

Info

Publication number
JPS5939533U
JPS5939533U JP13512782U JP13512782U JPS5939533U JP S5939533 U JPS5939533 U JP S5939533U JP 13512782 U JP13512782 U JP 13512782U JP 13512782 U JP13512782 U JP 13512782U JP S5939533 U JPS5939533 U JP S5939533U
Authority
JP
Japan
Prior art keywords
electric filter
conductive film
piezoelectric resonator
insulating case
grounded
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
JP13512782U
Other languages
Japanese (ja)
Inventor
永井 武澄
Original Assignee
日本特殊陶業株式会社
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 by 日本特殊陶業株式会社 filed Critical 日本特殊陶業株式会社
Priority to JP13512782U priority Critical patent/JPS5939533U/en
Publication of JPS5939533U publication Critical patent/JPS5939533U/en
Pending legal-status Critical Current

Links

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  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第1図は本案を適用した455kH2用梯子型電気濾波
器を示し、Aは要部を切欠した平面図、BはA図イーイ
線に沿う正面断面図、第2図は梯子型濾波回路、第3図
は本案のイと従来の濾波特性口や比較して示す特性図で
ある。 1・・・絶縁ケース、2.3・・・圧電共振子、4・・
・端子板、9・・・導電膜、P・・・濾波回路構成要素
Figure 1 shows a ladder-type electric filter for 455kHz2 to which the present invention is applied, A is a plan view with the main parts cut away, B is a front sectional view taken along line E in Figure A, and Figure 2 is a ladder-type filter circuit, Figure 3 is a characteristic diagram comparing the filtering characteristics of the present invention and the conventional filtering characteristics. 1... Insulating case, 2.3... Piezoelectric resonator, 4...
- Terminal board, 9... Conductive film, P... Filtering circuit component.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 圧電共振子、端子板等の濾波回路構成要素を内部に収納
する絶縁ケースの外表面に、電波シールド用導電膜を被
覆し、これを接地したことを特徴とする電気濾波器。
An electric filter characterized in that an electrically conductive film for radio wave shielding is coated on the outer surface of an insulating case that houses filtering circuit components such as a piezoelectric resonator and a terminal plate, and this is grounded.
JP13512782U 1982-09-06 1982-09-06 electric filter Pending JPS5939533U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13512782U JPS5939533U (en) 1982-09-06 1982-09-06 electric filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13512782U JPS5939533U (en) 1982-09-06 1982-09-06 electric filter

Publications (1)

Publication Number Publication Date
JPS5939533U true JPS5939533U (en) 1984-03-13

Family

ID=30304245

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13512782U Pending JPS5939533U (en) 1982-09-06 1982-09-06 electric filter

Country Status (1)

Country Link
JP (1) JPS5939533U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4810307B1 (en) * 1967-11-02 1973-04-02
JPS567349B1 (en) * 1968-02-26 1981-02-17

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4810307B1 (en) * 1967-11-02 1973-04-02
JPS567349B1 (en) * 1968-02-26 1981-02-17

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