JPS6474802A - Band pass filter - Google Patents

Band pass filter

Info

Publication number
JPS6474802A
JPS6474802A JP23328287A JP23328287A JPS6474802A JP S6474802 A JPS6474802 A JP S6474802A JP 23328287 A JP23328287 A JP 23328287A JP 23328287 A JP23328287 A JP 23328287A JP S6474802 A JPS6474802 A JP S6474802A
Authority
JP
Japan
Prior art keywords
dielectric
conductors
common
pass filter
grooves
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
JP23328287A
Other languages
Japanese (ja)
Inventor
Hiroshi Hatanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nihon Dengyo Kosaku Co Ltd
Original Assignee
Nihon Dengyo Kosaku Co Ltd
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 Nihon Dengyo Kosaku Co Ltd filed Critical Nihon Dengyo Kosaku Co Ltd
Priority to JP23328287A priority Critical patent/JPS6474802A/en
Publication of JPS6474802A publication Critical patent/JPS6474802A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To facilitate manufacturing and to improve reliability, by setting an external conductor and a dielectric in common for each resonator, and providing a coupling adjusting notch groove between internal conductors. CONSTITUTION:Plural dielectric resonators are formed by a common external conductor 1, a common dielectric 2, and the internal conductors 41-45. A band- pass filter is formed by cascade-connecting those plural dielectric resonators. An aperture part is provided at the short-circuited plane of the common dielectric 2 in the intermediate parts of the conductors 41-45, and also, the coupling adjusting notch grooves 512, 523, 534, and 545 are pierced so as to be set at right angles of an electric field and a magnetic field. And a metallic film 6 is attached on each of internal walls of the grooves 512-545. By constituting a device in such way, an inter-stage coupling capacitance is decided by the confronting areas of the conductors 41-45, the central interval D of each of the conductors 41-45, and the dielectric constant of the dielectric 2, and an inter-stage coupling coefficient is decided corresponding to the depth of the grooves 512-545. In such a way, it is possible to obtain the band-pass filter easy to manufacture and with high reliability.
JP23328287A 1987-09-17 1987-09-17 Band pass filter Pending JPS6474802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23328287A JPS6474802A (en) 1987-09-17 1987-09-17 Band pass filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23328287A JPS6474802A (en) 1987-09-17 1987-09-17 Band pass filter

Publications (1)

Publication Number Publication Date
JPS6474802A true JPS6474802A (en) 1989-03-20

Family

ID=16952651

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23328287A Pending JPS6474802A (en) 1987-09-17 1987-09-17 Band pass filter

Country Status (1)

Country Link
JP (1) JPS6474802A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997014191A1 (en) * 1995-10-10 1997-04-17 Motorola Inc. Half wave ceramic filter with open circuit at both ends
JP2009239430A (en) * 2008-03-26 2009-10-15 Japan Radio Co Ltd Multiple channel filter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997014191A1 (en) * 1995-10-10 1997-04-17 Motorola Inc. Half wave ceramic filter with open circuit at both ends
US5684439A (en) * 1995-10-10 1997-11-04 Motorola, Inc. Half wave ceramic filter with open circuit at both ends
JP2009239430A (en) * 2008-03-26 2009-10-15 Japan Radio Co Ltd Multiple channel filter

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