JPS6474802A - Band pass filter - Google Patents
Band pass filterInfo
- 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
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
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.
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)
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 |
-
1987
- 1987-09-17 JP JP23328287A patent/JPS6474802A/en active Pending
Cited By (3)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4996506A (en) | Band elimination filter and dielectric resonator therefor | |
JPH01112801A (en) | Dielectric band-pass filter | |
JPS56123102A (en) | Interdigital wave filter | |
GB1532895A (en) | Resonators | |
JPS61100002A (en) | Plane type dielectric filter | |
JPH06177607A (en) | Dielectric filter | |
JPH0369202B2 (en) | ||
JPS6474802A (en) | Band pass filter | |
JPS62183603A (en) | Dielectric filter | |
JPS6311802B2 (en) | ||
JPS6441301A (en) | Dielectric filter | |
JPS6390201A (en) | Dielectric filter | |
JPH03108801A (en) | Dielectric filter | |
JPS59223003A (en) | Coaxial type band-pass filter | |
JPS6453603A (en) | Polar type dielectric filter | |
JPH0338903U (en) | ||
JPS60236501A (en) | Band-pass type filter | |
JPH06112704A (en) | Dielectric filter | |
JPH032966Y2 (en) | ||
JPS5741017A (en) | Band-pass filter | |
JPH0419843Y2 (en) | ||
JPH0134401B2 (en) | ||
JPS6390202A (en) | High-frequency filter | |
JPS6114164Y2 (en) | ||
JPS5356951A (en) | Spiral resonator filter |