FR2379195A1 - Filtre passe-bande a accord asservi, et equipement comportant un tel filtre - Google Patents
Filtre passe-bande a accord asservi, et equipement comportant un tel filtreInfo
- Publication number
- FR2379195A1 FR2379195A1 FR7702451A FR7702451A FR2379195A1 FR 2379195 A1 FR2379195 A1 FR 2379195A1 FR 7702451 A FR7702451 A FR 7702451A FR 7702451 A FR7702451 A FR 7702451A FR 2379195 A1 FR2379195 A1 FR 2379195A1
- Authority
- FR
- France
- Prior art keywords
- tuning
- frequency
- band
- filter
- pass 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/18—Automatic scanning over a band of frequencies
- H03J7/30—Automatic scanning over a band of frequencies where the scanning is accomplished by mechanical means, e.g. by a motor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/16—Automatic frequency control where the frequency control is accomplished by mechanical means, e.g. by a motor
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Transmitters (AREA)
Abstract
La présente invention concerne les filtres passe-bande accordables en fréquence rapidement dont la fréquence d'accord est fonction de celle de l'oscillateur local d'un changeur de fréquence, et plus particulièrement les filtres hyperfréquences à cavités résonnantes à commande mécanique unique Elle consiste dans l'adjonction d'un dispositif d'accord comportant : une cavité résonnante supplémentaire également commandée par cette commande unique et accordée sur une fréquence décalée d'une valeur fixe par rapport à celle des autres cellules, et un dispositif d'asservissement de l'accord de cette cavité supplémentaire à la fréquence de l'oscillateur local de ce changeur de fréquence dont le simple affichage entraîne ainsi l'accord du filtre passe-bande. Application à tous équipements à gamme d'ondes continues.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7702451A FR2379195A1 (fr) | 1977-01-28 | 1977-01-28 | Filtre passe-bande a accord asservi, et equipement comportant un tel filtre |
US05/871,799 US4157515A (en) | 1976-01-28 | 1978-01-23 | Band-pass filtering device with servo-controlled tuning |
GB3067/78A GB1556843A (en) | 1977-01-28 | 1978-01-25 | Bans-pass filtering device with servo-controlled tuning |
AR270867A AR214116A1 (es) | 1977-01-28 | 1978-01-26 | Un dispositivo de filtrado de pasabanda de concordancia dependiente |
DE2803636A DE2803636C2 (de) | 1977-01-28 | 1978-01-27 | Bandpaßfilter |
JP53008212A JPS5820487B2 (ja) | 1977-01-28 | 1978-01-27 | 帯域通過ろ波装置 |
BR7800531A BR7800531A (pt) | 1977-01-28 | 1978-01-27 | Filtro passa-faixa com ligacao junta,e equipamento comportando esse filtro |
IT47824/78A IT1102026B (it) | 1977-01-28 | 1978-01-27 | Filtro passa-banda ad accordo asservito ed apparecchiatura comportante un tale filtro |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7702451A FR2379195A1 (fr) | 1977-01-28 | 1977-01-28 | Filtre passe-bande a accord asservi, et equipement comportant un tel filtre |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2379195A1 true FR2379195A1 (fr) | 1978-08-25 |
FR2379195B1 FR2379195B1 (fr) | 1980-09-12 |
Family
ID=9186029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7702451A Granted FR2379195A1 (fr) | 1976-01-28 | 1977-01-28 | Filtre passe-bande a accord asservi, et equipement comportant un tel filtre |
Country Status (8)
Country | Link |
---|---|
US (1) | US4157515A (fr) |
JP (1) | JPS5820487B2 (fr) |
AR (1) | AR214116A1 (fr) |
BR (1) | BR7800531A (fr) |
DE (1) | DE2803636C2 (fr) |
FR (1) | FR2379195A1 (fr) |
GB (1) | GB1556843A (fr) |
IT (1) | IT1102026B (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4644303A (en) * | 1984-03-13 | 1987-02-17 | Orion Industries, Inc. | Multiple cavity square prism filter transmitter combiner with shared square walls and tuning controls mounted on rectangular end walls |
US4726071A (en) * | 1984-12-31 | 1988-02-16 | Orion Industries, Inc. | Microprocessor controlled self-tuning resonant cavity and method |
GB2188202B (en) * | 1986-03-19 | 1989-12-06 | Marconi Co Ltd | High power systems |
US5344695A (en) * | 1991-03-29 | 1994-09-06 | Ngk Insulators, Ltd. | Dielectric filter having coupling electrodes for connecting resonator electrodes, and method of adjusting frequency characteristic of the filter |
US5739731A (en) * | 1994-01-18 | 1998-04-14 | Allen Telecom Group, Inc. | Self-tuning resonant cavity filter |
SE516287C2 (sv) * | 2000-02-16 | 2001-12-10 | Allgon Ab | Avstämningsbart filter och karaktäriserings- och avstämningsmetoder för nämnda filter |
US6898419B1 (en) * | 2001-04-30 | 2005-05-24 | Nortel Networks Corporation | Remotely adjustable bandpass filter |
US7034266B1 (en) | 2005-04-27 | 2006-04-25 | Kimberly-Clark Worldwide, Inc. | Tunable microwave apparatus |
KR101065125B1 (ko) * | 2010-09-20 | 2011-09-16 | 주식회사 에이스테크놀로지 | Rf 장비의 자동 튜닝 장치 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2976408A (en) * | 1960-04-25 | 1961-03-21 | Albert C Colaguori | Synchronous selectivity receiver |
US3715690A (en) * | 1971-05-18 | 1973-02-06 | Trw Inc | Automatic tuning electric wave filter |
-
1977
- 1977-01-28 FR FR7702451A patent/FR2379195A1/fr active Granted
-
1978
- 1978-01-23 US US05/871,799 patent/US4157515A/en not_active Expired - Lifetime
- 1978-01-25 GB GB3067/78A patent/GB1556843A/en not_active Expired
- 1978-01-26 AR AR270867A patent/AR214116A1/es active
- 1978-01-27 JP JP53008212A patent/JPS5820487B2/ja not_active Expired
- 1978-01-27 BR BR7800531A patent/BR7800531A/pt unknown
- 1978-01-27 IT IT47824/78A patent/IT1102026B/it active
- 1978-01-27 DE DE2803636A patent/DE2803636C2/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1556843A (en) | 1979-11-28 |
IT1102026B (it) | 1985-10-07 |
BR7800531A (pt) | 1978-10-03 |
DE2803636A1 (de) | 1978-08-03 |
AR214116A1 (es) | 1979-04-30 |
FR2379195B1 (fr) | 1980-09-12 |
JPS5820487B2 (ja) | 1983-04-23 |
IT7847824A0 (it) | 1978-01-27 |
JPS53124048A (en) | 1978-10-30 |
DE2803636C2 (de) | 1982-10-28 |
US4157515A (en) | 1979-06-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |