SE9804353L - Dielectric duplexor filter - Google Patents
Dielectric duplexor filterInfo
- Publication number
- SE9804353L SE9804353L SE9804353A SE9804353A SE9804353L SE 9804353 L SE9804353 L SE 9804353L SE 9804353 A SE9804353 A SE 9804353A SE 9804353 A SE9804353 A SE 9804353A SE 9804353 L SE9804353 L SE 9804353L
- Authority
- SE
- Sweden
- Prior art keywords
- resonators
- holes
- pattern
- dielectric
- conductive
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
- H01P1/2136—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using comb or interdigital filters; using cascaded coaxial cavities
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities
- H01P1/2056—Comb filters or interdigital filters with metallised resonator holes in a dielectric block
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Conductive patterns (131, 135, 140, 141, 145) a formed onto the dielectric block to connect the resonant holes (130) of the duplexer dielectric filter. A conductive pattern (131) is formed on the surroundings of the resonant holes (130) and connected with the conductive material covering the interior of the holes for applying a load capacitance to the resonators. A second conductive pattern (140) forms a coupling capacitance between adjacent resonators and cross coupling between nonadjacent resonators. A third conductive pattern (141) adjusts the resonant frequency between the resonators, a fourth pattern (135) suppresses the capacitance between the holes and a fifth pattern (145) adjusts the resonant frequency of the transmission resonator.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980027437A KR100262498B1 (en) | 1998-07-08 | 1998-07-08 | One block dielectric filter |
KR1019980033567A KR100262499B1 (en) | 1998-08-19 | 1998-08-19 | one block duplexer dielectric filter |
US10637298P | 1998-10-30 | 1998-10-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
SE9804353D0 SE9804353D0 (en) | 1998-12-16 |
SE9804353L true SE9804353L (en) | 2000-01-09 |
Family
ID=27349779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9804353A SE9804353L (en) | 1998-07-08 | 1998-12-16 | Dielectric duplexor filter |
Country Status (8)
Country | Link |
---|---|
JP (1) | JP2000049507A (en) |
AT (1) | AT411119B (en) |
BR (1) | BR9900051A (en) |
DE (1) | DE19859207A1 (en) |
FR (1) | FR2781085A1 (en) |
GB (1) | GB2339341B (en) |
SE (1) | SE9804353L (en) |
TW (1) | TW472444B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9900034D0 (en) * | 1999-01-04 | 1999-02-24 | Marconi Electronic Syst Ltd | Structure with magnetic properties |
US6404306B1 (en) * | 2000-03-17 | 2002-06-11 | Ube Electronics, Ltd. | Dielectric ceramic filter with improved electrical characteristics in high side of filter passband |
US11862835B2 (en) * | 2020-08-13 | 2024-01-02 | Cyntec Co., Ltd. | Dielectric filter with multilayer resonator |
CN115189109A (en) * | 2022-06-22 | 2022-10-14 | 厦门松元电子股份有限公司 | Structure mixed type ceramic dielectric band-pass filter |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4740765A (en) * | 1985-09-30 | 1988-04-26 | Murata Manufacturing Co., Ltd. | Dielectric filter |
US4823098A (en) * | 1988-06-14 | 1989-04-18 | Motorola, Inc. | Monolithic ceramic filter with bandstop function |
JPH0275203A (en) * | 1988-09-09 | 1990-03-14 | Toko Inc | Dielectric filter and method for adjusting its coupling degree |
US5230093A (en) * | 1991-05-03 | 1993-07-20 | Rich Randall W | Transmitter filter with integral directional coupler for cellular telephones |
US5488335A (en) * | 1992-01-21 | 1996-01-30 | Motorola, Inc. | Multi-passband dielectric filter construction having a filter portion including at least a pair of dissimilarly-sized resonators |
JP3205337B2 (en) * | 1992-05-26 | 2001-09-04 | シーティーエス・コーポレーション | Multiple passband dielectric filter structure |
JPH07336108A (en) * | 1994-06-03 | 1995-12-22 | Murata Mfg Co Ltd | Dielectric filter |
JPH08228103A (en) * | 1995-02-21 | 1996-09-03 | Murata Mfg Co Ltd | Dielectric filter |
JPH09107206A (en) * | 1995-08-04 | 1997-04-22 | Ngk Spark Plug Co Ltd | Dielectric filter and its coupling capacity adjustment method |
JPH09312506A (en) * | 1996-05-23 | 1997-12-02 | Ngk Spark Plug Co Ltd | Dielectric filter |
-
1998
- 1998-12-16 AT AT0209998A patent/AT411119B/en not_active IP Right Cessation
- 1998-12-16 SE SE9804353A patent/SE9804353L/en not_active Application Discontinuation
- 1998-12-16 TW TW87121003A patent/TW472444B/en active
- 1998-12-17 FR FR9816167A patent/FR2781085A1/en not_active Withdrawn
- 1998-12-18 GB GB9827959A patent/GB2339341B/en not_active Expired - Fee Related
- 1998-12-21 JP JP10362665A patent/JP2000049507A/en active Pending
- 1998-12-21 DE DE1998159207 patent/DE19859207A1/en not_active Ceased
-
1999
- 1999-01-13 BR BR9900051-2A patent/BR9900051A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
BR9900051A (en) | 2000-09-05 |
AT411119B (en) | 2003-09-25 |
FR2781085A1 (en) | 2000-01-14 |
ATA209998A (en) | 2003-02-15 |
TW472444B (en) | 2002-01-11 |
DE19859207A1 (en) | 2000-01-27 |
SE9804353D0 (en) | 1998-12-16 |
GB2339341A (en) | 2000-01-19 |
GB2339341B (en) | 2003-07-09 |
JP2000049507A (en) | 2000-02-18 |
GB9827959D0 (en) | 1999-02-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |