DE3175105D1 - Two-pole monolithic crystal filter - Google Patents
Two-pole monolithic crystal filterInfo
- Publication number
- DE3175105D1 DE3175105D1 DE8181901867T DE3175105T DE3175105D1 DE 3175105 D1 DE3175105 D1 DE 3175105D1 DE 8181901867 T DE8181901867 T DE 8181901867T DE 3175105 T DE3175105 T DE 3175105T DE 3175105 D1 DE3175105 D1 DE 3175105D1
- Authority
- DE
- Germany
- Prior art keywords
- crystal filter
- monolithic crystal
- pole monolithic
- pole
- filter
- 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.)
- Expired
Links
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/176,630 US4329666A (en) | 1980-08-11 | 1980-08-11 | Two-pole monolithic crystal filter |
PCT/US1981/000768 WO1982000551A1 (en) | 1980-08-11 | 1981-06-05 | Two-pole monolithic crystal filter |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3175105D1 true DE3175105D1 (en) | 1986-09-18 |
Family
ID=26764616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8181901867T Expired DE3175105D1 (en) | 1980-08-11 | 1981-06-05 | Two-pole monolithic crystal filter |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU540306B2 (en) |
DE (1) | DE3175105D1 (en) |
HK (1) | HK7589A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4533885A (en) * | 1983-04-27 | 1985-08-06 | Motorola, Inc. | Apparatus for suppression of spurious attenuation poles in crystal filters |
-
1981
- 1981-06-05 AU AU73295/81A patent/AU540306B2/en not_active Ceased
- 1981-06-05 DE DE8181901867T patent/DE3175105D1/en not_active Expired
-
1989
- 1989-01-26 HK HK7589A patent/HK7589A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU7329581A (en) | 1982-03-02 |
AU540306B2 (en) | 1984-11-08 |
HK7589A (en) | 1989-02-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |