TW472444B - A duplexer dielectric filter - Google Patents
A duplexer dielectric filter Download PDFInfo
- Publication number
- TW472444B TW472444B TW87121003A TW87121003A TW472444B TW 472444 B TW472444 B TW 472444B TW 87121003 A TW87121003 A TW 87121003A TW 87121003 A TW87121003 A TW 87121003A TW 472444 B TW472444 B TW 472444B
- Authority
- TW
- Taiwan
- Prior art keywords
- conductive pattern
- patent application
- scope
- item
- duplex
- Prior art date
Links
- 230000008878 coupling Effects 0.000 claims abstract description 40
- 238000010168 coupling process Methods 0.000 claims abstract description 40
- 238000005859 coupling reaction Methods 0.000 claims abstract description 40
- 239000004020 conductor Substances 0.000 claims abstract description 34
- 238000001914 filtration Methods 0.000 claims abstract description 29
- 230000002079 cooperative effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 238000001228 spectrum Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 2
- 230000003595 spectral effect Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 2
- 241000270666 Testudines Species 0.000 claims 1
- 239000008186 active pharmaceutical agent Substances 0.000 claims 1
- 244000145845 chattering Species 0.000 claims 1
- 239000002305 electric material Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 230000006911 nucleation Effects 0.000 claims 1
- 238000010899 nucleation Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 15
- 239000003990 capacitor Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000001808 coupling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 241001425800 Pipa Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000006880 cross-coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980027437A KR100262498B1 (ko) | 1998-07-08 | 1998-07-08 | 일체형유전체필터 |
| KR1019980033567A KR100262499B1 (ko) | 1998-08-19 | 1998-08-19 | 일체형듀플렉서유전체필터 |
| US10637298P | 1998-10-30 | 1998-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW472444B true TW472444B (en) | 2002-01-11 |
Family
ID=27349779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW87121003A TW472444B (en) | 1998-07-08 | 1998-12-16 | A duplexer dielectric filter |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JP2000049507A (de) |
| AT (1) | AT411119B (de) |
| BR (1) | BR9900051A (de) |
| DE (1) | DE19859207A1 (de) |
| FR (1) | FR2781085A1 (de) |
| GB (1) | GB2339341B (de) |
| SE (1) | SE9804353L (de) |
| TW (1) | TW472444B (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI792487B (zh) * | 2020-08-13 | 2023-02-11 | 乾坤科技股份有限公司 | 具有多層諧振器的介電濾波器 |
| TWI836699B (zh) * | 2022-06-22 | 2024-03-21 | 大陸商廈門松元電子股份有限公司 | 結構混合型陶瓷介質帶通濾波器 |
Families Citing this family (2)
| 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 |
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 (ja) * | 1988-09-09 | 1990-03-14 | Toko Inc | 誘電体フィルタとその結合度調整方法 |
| 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 |
| CA2114029C (en) * | 1992-05-26 | 1997-11-18 | Darioush Agahi-Kesheh | Multi-passband dielectric filter construction |
| JPH07336108A (ja) * | 1994-06-03 | 1995-12-22 | Murata Mfg Co Ltd | 誘電体フィルタ |
| JPH08228103A (ja) * | 1995-02-21 | 1996-09-03 | Murata Mfg Co Ltd | 誘電体フィルタ |
| JPH09107206A (ja) * | 1995-08-04 | 1997-04-22 | Ngk Spark Plug Co Ltd | 誘電体フィルタ及びその結合容量調整方法 |
| JPH09312506A (ja) * | 1996-05-23 | 1997-12-02 | Ngk Spark Plug Co Ltd | 誘電体フィルタ |
-
1998
- 1998-12-16 TW TW87121003A patent/TW472444B/zh active
- 1998-12-16 AT AT0209998A patent/AT411119B/de not_active IP Right Cessation
- 1998-12-16 SE SE9804353A patent/SE9804353L/ not_active Application Discontinuation
- 1998-12-17 FR FR9816167A patent/FR2781085A1/fr not_active Withdrawn
- 1998-12-18 GB GB9827959A patent/GB2339341B/en not_active Expired - Fee Related
- 1998-12-21 JP JP10362665A patent/JP2000049507A/ja active Pending
- 1998-12-21 DE DE1998159207 patent/DE19859207A1/de not_active Ceased
-
1999
- 1999-01-13 BR BR9900051-2A patent/BR9900051A/pt not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI792487B (zh) * | 2020-08-13 | 2023-02-11 | 乾坤科技股份有限公司 | 具有多層諧振器的介電濾波器 |
| US11862835B2 (en) | 2020-08-13 | 2024-01-02 | Cyntec Co., Ltd. | Dielectric filter with multilayer resonator |
| TWI836699B (zh) * | 2022-06-22 | 2024-03-21 | 大陸商廈門松元電子股份有限公司 | 結構混合型陶瓷介質帶通濾波器 |
| US12494559B2 (en) | 2022-06-22 | 2025-12-09 | Xiamen Sunyear Electronics Co., Ltd | Ceramic dielectric band-pass filter comprising plural resonant cavities configured to form a sixth-order band-pass filter coupled to notch filters |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2339341A (en) | 2000-01-19 |
| DE19859207A1 (de) | 2000-01-27 |
| GB9827959D0 (en) | 1999-02-10 |
| AT411119B (de) | 2003-09-25 |
| SE9804353L (sv) | 2000-01-09 |
| GB2339341B (en) | 2003-07-09 |
| ATA209998A (de) | 2003-02-15 |
| BR9900051A (pt) | 2000-09-05 |
| SE9804353D0 (sv) | 1998-12-16 |
| JP2000049507A (ja) | 2000-02-18 |
| FR2781085A1 (fr) | 2000-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GD4A | Issue of patent certificate for granted invention patent |