SE8005619L - Induktanslost monolitiskt kristallfilternet - Google Patents
Induktanslost monolitiskt kristallfilternetInfo
- Publication number
- SE8005619L SE8005619L SE8005619A SE8005619A SE8005619L SE 8005619 L SE8005619 L SE 8005619L SE 8005619 A SE8005619 A SE 8005619A SE 8005619 A SE8005619 A SE 8005619A SE 8005619 L SE8005619 L SE 8005619L
- Authority
- SE
- Sweden
- Prior art keywords
- electrodes
- crystal filter
- inductuously
- monolitic
- point
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 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
- H03H9/542—Filters comprising resonators of piezoelectric or electrostrictive material including passive elements
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Filters And Equalizers (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/968,302 US4246554A (en) | 1978-12-11 | 1978-12-11 | Inductorless monolithic crystal filter network |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8005619L true SE8005619L (sv) | 1980-08-08 |
SE446681B SE446681B (sv) | 1986-09-29 |
Family
ID=25514037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8005619A SE446681B (sv) | 1978-12-11 | 1980-08-08 | Polyitisk kristallbandpassfiltersektion |
Country Status (10)
Country | Link |
---|---|
US (1) | US4246554A (sv) |
EP (1) | EP0020729B1 (sv) |
JP (1) | JPS55501046A (sv) |
BE (1) | BE880538A (sv) |
CA (1) | CA1149477A (sv) |
DK (1) | DK155065C (sv) |
GB (1) | GB2048011B (sv) |
IT (1) | IT1164777B (sv) |
SE (1) | SE446681B (sv) |
WO (1) | WO1980001226A1 (sv) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4790914A (en) * | 1985-09-30 | 1988-12-13 | The Dow Chemical Company | Electrolysis process using concentric tube membrane electrolytic cell |
US4784735A (en) * | 1986-11-25 | 1988-11-15 | The Dow Chemical Company | Concentric tube membrane electrolytic cell with an internal recycle device |
US5030934A (en) * | 1989-07-05 | 1991-07-09 | Motorola, Inc. | Crystal notch filter comprising discrete quartz crystals coupled to a trimmable RC bridging network |
JP3040035B2 (ja) * | 1992-09-18 | 2000-05-08 | ローム株式会社 | 中間周波増幅回路を備えた受信機 |
US20050093652A1 (en) * | 2003-10-31 | 2005-05-05 | Qing Ma | Size scaling of film bulk acoustic resonator (FBAR) filters using impedance transformer (IT) or balun |
WO2009143158A1 (en) * | 2008-05-23 | 2009-11-26 | Cornell University | Generation of high-frequency, high-power electrical signals from low-frequency, low-power lattice network structures as sources |
EP2649728B1 (en) * | 2010-12-10 | 2015-10-14 | Peregrine Semiconductor Corporation | Process and temperature compensation of an acoustic wave filter via a processor, memory and capacitor bank |
US9300038B2 (en) | 2010-12-10 | 2016-03-29 | Peregrine Semiconductor Corporation | Method, system, and apparatus for resonator circuits and modulating resonators |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2248776A (en) * | 1938-07-28 | 1941-07-08 | Bell Telephone Labor Inc | Wave filter |
NL283486A (sv) * | 1961-09-22 | |||
US3437848A (en) * | 1964-09-24 | 1969-04-08 | Telefunken Patent | Piezoelectric plate filter |
US3564463A (en) * | 1966-04-11 | 1971-02-16 | Bell Telephone Labor Inc | Monolithic piezoelectric filter having mass loaded electrodes for resonation regions acoustically coupled together |
US3401275A (en) * | 1966-04-14 | 1968-09-10 | Clevite Corp | Composite resonator |
US3585537A (en) * | 1969-02-10 | 1971-06-15 | Bell Telephone Labor Inc | Electric wave filters |
GB1277614A (en) * | 1969-03-07 | 1972-06-14 | Standard Telephones Cables Ltd | An electromechanical resonator |
BE758421A (fr) * | 1969-11-06 | 1971-05-04 | Automatic Elect Lab | Filtre passe-bande a cristal polylithique, presentant des frequences polaires d'attenuation dans la bande d'arret inferieure |
US3613031A (en) * | 1969-12-15 | 1971-10-12 | Hughes Aircraft Co | Crystal ladder network having improved passband attenuation characteristic |
DE2001433C3 (de) * | 1970-01-07 | 1983-06-01 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka | Bandpaßfilter |
US3704443A (en) * | 1970-08-27 | 1972-11-28 | Us Navy | Hydrodynamic transducer |
US3716808A (en) * | 1971-05-20 | 1973-02-13 | Motorola Inc | Bandpass filter including monolithic crystal elements with resonating portions selected for symmetrical response |
US3704433A (en) * | 1971-05-27 | 1972-11-28 | Bell Telephone Labor Inc | Band-elimination filter |
US3723920A (en) * | 1971-06-24 | 1973-03-27 | Gte Automatic Electric Lab Inc | Crystal filter assembly |
JPS50142141A (sv) * | 1974-05-07 | 1975-11-15 | ||
US3947784A (en) * | 1974-09-19 | 1976-03-30 | Motorola, Inc. | Dual-coupled monolithic crystal element for modifying response of filter |
US4013982A (en) * | 1974-10-22 | 1977-03-22 | International Standard Electric Corporation | Piezoelectric crystal unit |
US3944951A (en) * | 1974-11-21 | 1976-03-16 | Bell Telephone Laboratories, Incorporated | Monolithic crystal filter |
CA1041186A (en) * | 1976-04-28 | 1978-10-24 | Henry K. Yee | Monolithic crystal filters |
CA1101945A (en) * | 1977-04-15 | 1981-05-26 | Henry K. Yee | Single side band monolithic crystal filter |
-
1978
- 1978-12-11 US US05/968,302 patent/US4246554A/en not_active Expired - Lifetime
-
1979
- 1979-12-07 WO PCT/US1979/001046 patent/WO1980001226A1/en active IP Right Grant
- 1979-12-07 JP JP50020979A patent/JPS55501046A/ja active Pending
- 1979-12-07 GB GB8023455A patent/GB2048011B/en not_active Expired
- 1979-12-07 EP EP80900142A patent/EP0020729B1/en not_active Expired - Lifetime
- 1979-12-11 CA CA000341661A patent/CA1149477A/en not_active Expired
- 1979-12-11 IT IT51055/79A patent/IT1164777B/it active
- 1979-12-11 BE BE0/198506A patent/BE880538A/fr not_active IP Right Cessation
-
1980
- 1980-08-08 SE SE8005619A patent/SE446681B/sv not_active IP Right Cessation
- 1980-08-11 DK DK345780A patent/DK155065C/da not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0020729A4 (en) | 1981-05-15 |
GB2048011A (en) | 1980-12-03 |
DK155065B (da) | 1989-01-30 |
GB2048011B (en) | 1983-09-07 |
IT1164777B (it) | 1987-04-15 |
EP0020729A1 (en) | 1981-01-07 |
DK155065C (da) | 1989-07-03 |
US4246554A (en) | 1981-01-20 |
DK345780A (da) | 1980-08-11 |
IT7951055A0 (it) | 1979-12-11 |
WO1980001226A1 (en) | 1980-06-12 |
SE446681B (sv) | 1986-09-29 |
CA1149477A (en) | 1983-07-05 |
BE880538A (fr) | 1980-06-11 |
EP0020729B1 (en) | 1990-09-26 |
JPS55501046A (sv) | 1980-11-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE49088T1 (de) | Kapazitiver membranschalter. | |
JPS6415683A (en) | Compensation of electric charge amplifier circuit used especially for piezo-electric type under water listener | |
GB1347235A (en) | Variable capacitance displacement transducers | |
FR2255749A1 (en) | Astable multivibrator with two active components | |
SE8005619L (sv) | Induktanslost monolitiskt kristallfilternet | |
GB1434073A (en) | Piezo-electric filters | |
IT8119438A0 (it) | Complesso circuitale per la multiplazione di una funzione di ingresso e di una funzione di uscita in corrispondenza di un singolo terminale. | |
ES464794A1 (es) | Perfeccionamientos en dispositivos semiconductores de trans-ferencia de carga de electrodos divididos. | |
ES536155A0 (es) | Una impedancia capacitiva compleja | |
JPS5560320A (en) | Active filter | |
KR830005755A (ko) | 저역통과 특성의 증폭기장치 | |
JPS5528663A (en) | Piezoelectric oscillation element | |
KR880008552A (ko) | 진폭변조 수신기내 변조기와 세라믹 필터 사이에서 사용하기 위한 결합회로 | |
JPS5616312A (en) | Surface elastic wave device | |
JPS553208A (en) | Device to obtain plural resonance frequencies | |
SU485333A1 (ru) | Электроразр дный датчик давлени с частотным выходом | |
GB1319946A (en) | Piezoelectric filters | |
JPS5362493A (en) | Crystal vibrator | |
FR83613E (fr) | Circuit intégrateur comprenant un amplificateur c. c., un condensateur connecté entre l'entrée et la sortie de l'amplificateur, et, si nécessaire, un interrupteur dans la connexion d'entrée | |
SU429504A1 (sv) | ||
JPS53108356A (en) | Active circuit | |
JPS5520013A (en) | Multi-section ceramic filter | |
JPS5484958A (en) | Crystal oscillation circuit | |
JPS5657322A (en) | Elastic surface wave comb line filter | |
JPS562711A (en) | Ripple eliminating circuit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 8005619-5 Effective date: 19940710 Format of ref document f/p: F |