DK545184D0 - Apparat til undertrykkelse af parasitiske daempningspoler i krystalfiltre - Google Patents
Apparat til undertrykkelse af parasitiske daempningspoler i krystalfiltreInfo
- Publication number
- DK545184D0 DK545184D0 DK545184A DK545184A DK545184D0 DK 545184 D0 DK545184 D0 DK 545184D0 DK 545184 A DK545184 A DK 545184A DK 545184 A DK545184 A DK 545184A DK 545184 D0 DK545184 D0 DK 545184D0
- Authority
- DK
- Denmark
- Prior art keywords
- pools
- suppression
- crystal filters
- parasitic damping
- parasitic
- Prior art date
Links
- 239000013078 crystal Substances 0.000 title 1
- 238000013016 damping Methods 0.000 title 1
- 230000003071 parasitic effect Effects 0.000 title 1
- 230000001629 suppression Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/56—Monolithic crystal filters
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/488,874 US4533885A (en) | 1983-04-27 | 1983-04-27 | Apparatus for suppression of spurious attenuation poles in crystal filters |
| US48887483 | 1983-04-27 | ||
| PCT/US1984/000565 WO1984004434A1 (en) | 1983-04-27 | 1984-04-12 | Apparatus for suppression of spurious attenuation poles in crystal filters |
| US8400565 | 1984-04-12 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK545184A DK545184A (da) | 1984-11-16 |
| DK545184D0 true DK545184D0 (da) | 1984-11-16 |
| DK164978B DK164978B (da) | 1992-09-21 |
| DK164978C DK164978C (da) | 1993-02-08 |
Family
ID=23941470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK545184A DK164978C (da) | 1983-04-27 | 1984-11-16 | Apparat til undertrykkelse af parasitiske daempningspoler i basismonterede krystalfiltre |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4533885A (da) |
| EP (1) | EP0156808B1 (da) |
| JP (1) | JPS60501188A (da) |
| KR (1) | KR920007453B1 (da) |
| AU (1) | AU585482B2 (da) |
| CA (1) | CA1204178A (da) |
| DE (1) | DE3484243D1 (da) |
| DK (1) | DK164978C (da) |
| FI (1) | FI87862C (da) |
| SG (1) | SG56493G (da) |
| WO (1) | WO1984004434A1 (da) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0224866B1 (de) * | 1985-12-05 | 1993-02-17 | Siemens Aktiengesellschaft | Oberflächenwellenbauelement |
| US6020797A (en) * | 1998-08-21 | 2000-02-01 | Cts Corporation | Electrode connection configuration and method for a multi-pole monolithic crystal filter |
| JP5861693B2 (ja) * | 2013-12-03 | 2016-02-16 | 株式会社村田製作所 | 積層バンドパスフィルタ |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3453458A (en) * | 1965-04-19 | 1969-07-01 | Clevite Corp | Resonator supporting structure |
| US3609601A (en) * | 1970-01-12 | 1971-09-28 | Collins Radio Co | Monolithic filter having "m" derived characteristics |
| IT967193B (it) * | 1971-09-29 | 1974-02-28 | Licentia Gmbh | Supporto per un filtro elettro meccanico |
| US4282454A (en) * | 1979-04-27 | 1981-08-04 | Motorola, Inc. | Piezoelectric crystal mounting and connection arrangement |
| US4329666A (en) * | 1980-08-11 | 1982-05-11 | Motorola, Inc. | Two-pole monolithic crystal filter |
| DE3175105D1 (en) * | 1980-08-11 | 1986-09-18 | Motorola Inc | Two-pole monolithic crystal filter |
| GB2100950A (en) * | 1981-06-23 | 1983-01-06 | Standard Telephones Cables Ltd | Crystal filter |
| US4430596A (en) * | 1982-08-16 | 1984-02-07 | Motorola, Inc. | Temperature insensitive piezoelectric crystal mounting arrangement |
-
1983
- 1983-04-27 US US06/488,874 patent/US4533885A/en not_active Expired - Fee Related
-
1984
- 1984-04-09 CA CA000451563A patent/CA1204178A/en not_active Expired
- 1984-04-12 EP EP84901862A patent/EP0156808B1/en not_active Expired - Lifetime
- 1984-04-12 JP JP59501788A patent/JPS60501188A/ja active Granted
- 1984-04-12 AU AU28275/84A patent/AU585482B2/en not_active Ceased
- 1984-04-12 DE DE8484901862T patent/DE3484243D1/de not_active Expired - Lifetime
- 1984-04-12 WO PCT/US1984/000565 patent/WO1984004434A1/en active IP Right Grant
- 1984-04-25 KR KR1019840002219A patent/KR920007453B1/ko not_active IP Right Cessation
- 1984-11-16 DK DK545184A patent/DK164978C/da active
- 1984-12-14 FI FI844957A patent/FI87862C/fi not_active IP Right Cessation
-
1993
- 1993-05-03 SG SG564/93A patent/SG56493G/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60501188A (ja) | 1985-07-25 |
| DK164978B (da) | 1992-09-21 |
| DE3484243D1 (de) | 1991-04-11 |
| KR920007453B1 (ko) | 1992-09-01 |
| FI87862C (fi) | 1993-02-25 |
| CA1204178A (en) | 1986-05-06 |
| FI844957A0 (fi) | 1984-12-14 |
| AU585482B2 (en) | 1989-06-22 |
| EP0156808B1 (en) | 1991-03-06 |
| FI87862B (fi) | 1992-11-13 |
| DK545184A (da) | 1984-11-16 |
| KR850000813A (ko) | 1985-03-09 |
| EP0156808A4 (en) | 1986-08-21 |
| FI844957L (fi) | 1984-12-14 |
| SG56493G (en) | 1993-07-09 |
| AU2827584A (en) | 1984-11-19 |
| JPH0422366B2 (da) | 1992-04-16 |
| WO1984004434A1 (en) | 1984-11-08 |
| DK164978C (da) | 1993-02-08 |
| US4533885A (en) | 1985-08-06 |
| EP0156808A1 (en) | 1985-10-09 |
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