RO80736B - Filtru electromecanic - Google Patents
Filtru electromecanicInfo
- Publication number
- RO80736B RO80736B RO79654A RO7965474A RO80736B RO 80736 B RO80736 B RO 80736B RO 79654 A RO79654 A RO 79654A RO 7965474 A RO7965474 A RO 7965474A RO 80736 B RO80736 B RO 80736B
- Authority
- RO
- Romania
- Prior art keywords
- resonators
- coupling conductor
- central coupling
- coupled
- conductors
- Prior art date
Links
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
- H03H9/48—Coupling means therefor
- H03H9/50—Mechanical coupling means
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
Inventia se refera la un filtru electromecanic constituit din mai multi rezonatori care vibreaza prin îndoire, dispusi, într-o structura de filtrare. Filtrul, conform inventiei, este alcatuit din niste rezonatori intermediari si de capat care sunt plasati de o parte si de cealalta a unui conductor de cuplare, central, astfel încît rezinatorii intermediari si de capat sunt plasati în niste planuri diferite, paralele, rezonatorii intermediari din acelasi plan fiind cuplati prin niste conductoare paralele, iar ceilalti rezonatori intermediari si de capat situati în celalalt plan fiind cuplati prin niste alte conductoare paralele, iar în ambele cazuri contactele avînd loc în regiunile axelor nodale ale modului de vibratie fundamental al rezonatorilor intermediari si de capat si în partea opusa contactelor acestora din urma cu conductorul de cuplare, central, doi dintre rezonatorii intermediari alaturati, situati de aceeasi parte a conductorului de cuplare, central, fiind cuplati suplimentari cu ajutorul unuia dintre niste conductori...
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2748273A IT992811B (it) | 1973-08-03 | 1973-08-03 | Filtro elettromeccanico con risona tori vibranti a flessione |
Publications (2)
Publication Number | Publication Date |
---|---|
RO80736B true RO80736B (ro) | 1983-05-30 |
RO80736A RO80736A (ro) | 1983-06-01 |
Family
ID=11221735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RO7479654A RO80736A (ro) | 1973-08-03 | 1974-08-02 | Filtru electromecanic |
Country Status (8)
Country | Link |
---|---|
BR (1) | BR7406380D0 (ro) |
DE (1) | DE2433874C3 (ro) |
ES (1) | ES428885A1 (ro) |
FR (1) | FR2239811B1 (ro) |
GB (1) | GB1482112A (ro) |
IT (1) | IT992811B (ro) |
RO (1) | RO80736A (ro) |
YU (1) | YU36321B (ro) |
-
1973
- 1973-08-03 IT IT2748273A patent/IT992811B/it active
-
1974
- 1974-07-15 GB GB3121674A patent/GB1482112A/en not_active Expired
- 1974-07-15 DE DE19742433874 patent/DE2433874C3/de not_active Expired
- 1974-07-22 FR FR7425348A patent/FR2239811B1/fr not_active Expired
- 1974-07-24 YU YU210174A patent/YU36321B/xx unknown
- 1974-08-02 ES ES428885A patent/ES428885A1/es not_active Expired
- 1974-08-02 RO RO7479654A patent/RO80736A/ro unknown
- 1974-08-02 BR BR638074A patent/BR7406380D0/pt unknown
Also Published As
Publication number | Publication date |
---|---|
BR7406380D0 (pt) | 1975-05-20 |
DE2433874B2 (de) | 1977-11-03 |
DE2433874C3 (de) | 1978-06-15 |
YU210174A (en) | 1981-08-31 |
RO80736A (ro) | 1983-06-01 |
DE2433874A1 (de) | 1975-02-13 |
YU36321B (en) | 1982-06-18 |
IT992811B (it) | 1975-09-30 |
FR2239811B1 (ro) | 1978-01-20 |
ES428885A1 (es) | 1976-09-01 |
FR2239811A1 (ro) | 1975-02-28 |
GB1482112A (en) | 1977-08-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI98671B (fi) | Rinnankytketty moniasteinen kaistanpäästösuodatin | |
GB1460640A (en) | Quartz cr | |
EP0809357A3 (en) | Surface acoustic wave filter and multistage surface acoustic wave filter | |
GB1187472A (en) | Energy Translating Means | |
US2484626A (en) | Electromechanical transducer | |
US4030050A (en) | Acoustic surface wave filters | |
RO80736B (ro) | Filtru electromecanic | |
US3013228A (en) | Mechanical frequency filter | |
US3086183A (en) | Electromechanical filter | |
GB1434073A (en) | Piezo-electric filters | |
CA1041186A (en) | Monolithic crystal filters | |
US2194539A (en) | Piezoelectric crystal impedance element | |
GB1209808A (en) | Improvements in or relating to electromechanical band-pass filters | |
US2303375A (en) | Rochelle salt piezoelectric crystal apparatus | |
GB1073600A (en) | Improvements in or relating to piezo-electric devices comprising first and second piezo-electric elements | |
DE68912976D1 (de) | Allpasstyp-Schaltung für ultrahohe Frequenzen. | |
GB1196717A (en) | Improvements relating to Electromechanical Band-Pass Filters. | |
SU553730A1 (ru) | Колебательна система электромеханического фильтра | |
SU849433A1 (ru) | Колебательна система электро-МЕХАНичЕСКОгО фильТРА | |
JPS53107259A (en) | Compensator for delay of envelope | |
GB955071A (en) | Improvements in or relating to stripline transmission devices | |
GB1531759A (en) | Electromechanical filters | |
GB1028549A (en) | Improvements in or relating to band pass filters | |
JP2503891Y2 (ja) | セラミックフィルタ | |
GB1109996A (en) | Improvements in or relating to electromechanical band-pass filters |