FR2448231A1 - Filtre spatial adaptatif hyperfrequence - Google Patents
Filtre spatial adaptatif hyperfrequenceInfo
- Publication number
- FR2448231A1 FR2448231A1 FR7902918A FR7902918A FR2448231A1 FR 2448231 A1 FR2448231 A1 FR 2448231A1 FR 7902918 A FR7902918 A FR 7902918A FR 7902918 A FR7902918 A FR 7902918A FR 2448231 A1 FR2448231 A1 FR 2448231A1
- Authority
- FR
- France
- Prior art keywords
- spatial filter
- microwave
- adaptive spatial
- microwave adaptive
- 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
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/002—Antennas or antenna systems providing at least two radiating patterns providing at least two patterns of different beamwidth; Variable beamwidth antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
- H01Q3/2611—Means for null steering; Adaptive interference nulling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
- H01Q3/46—Active lenses or reflecting arrays
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Noise Elimination (AREA)
Abstract
PROCEDE POUR ATTENUER OU ANNULER CERTAINS LOBES SECONDAIRES DU DIAGRAMME DE RAYONNEMENT D'UNE ANTENNE HYPERFREQUENCE UTILISANT UN RESEAU DE FILS PARALLELES CHARGES DE RESISTANCES VARIABLES A VOLONTE, DISPOSE EN FILTRE DEVANT L'ANTENNE. APPLICATION DE CE PROCEDE A L'ELIMINATION DES EFFETS DES INTERFERENCES ACTIVES OU PASSIVES, AINSI QU'A LA LOCALISATION DE BROUILLEURS. FILTRE ADAPTATIF POUR ANTENNES HYPERFREQUENCES.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7902918A FR2448231A1 (fr) | 1979-02-05 | 1979-02-05 | Filtre spatial adaptatif hyperfrequence |
US06/117,243 US4344077A (en) | 1979-02-05 | 1980-01-31 | Adaptive spatial microwave filter |
DE8080400164T DE3063006D1 (en) | 1979-02-05 | 1980-02-04 | Microwave adaptive spatial filter and its method of use in lowering or suppressing the sidelobes of the radiation pattern of an antenna |
AT80400164T ATE3347T1 (de) | 1979-02-05 | 1980-02-04 | Adaptives hoechstfrequenz-raumfilter und dessen verfahren der anwendung zur abschwaechung oder unterdrueckung der nebenzipfel des strahlungsdiagrammes einer antenne. |
EP80400164A EP0014650B1 (fr) | 1979-02-05 | 1980-02-04 | Filtre spatial adaptatif hyperfréquence et son procédé d'utilisation pour l'atténuation ou l'annulation des lobes secondaires du diagramme de rayonnement d'une antenne |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7902918A FR2448231A1 (fr) | 1979-02-05 | 1979-02-05 | Filtre spatial adaptatif hyperfrequence |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2448231A1 true FR2448231A1 (fr) | 1980-08-29 |
FR2448231B1 FR2448231B1 (fr) | 1983-06-24 |
Family
ID=9221612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7902918A Granted FR2448231A1 (fr) | 1979-02-05 | 1979-02-05 | Filtre spatial adaptatif hyperfrequence |
Country Status (5)
Country | Link |
---|---|
US (1) | US4344077A (fr) |
EP (1) | EP0014650B1 (fr) |
AT (1) | ATE3347T1 (fr) |
DE (1) | DE3063006D1 (fr) |
FR (1) | FR2448231A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2514203A1 (fr) * | 1981-10-05 | 1983-04-08 | Radant Etudes | Filtre adaptatif spatial hyperfrequence pour antenne a polarisation quelconque et son procede de mise en oeuvre |
FR2693039A1 (fr) * | 1981-04-28 | 1993-12-31 | Radant Etudes | Panneau atténuateur spatial hyperfréquence. |
DE3403447C1 (de) * | 1983-05-06 | 1996-05-09 | Cmh Sarl | Verfahren und Radom zum Schutz einer Radareinrichtung |
DE3441268C1 (de) * | 1984-01-23 | 1996-11-07 | Cmh Sarl | Verfahren und Vorrichtung zum Suchen und Bestimmen der Lage eines Störers |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2477784A1 (fr) * | 1980-03-04 | 1981-09-11 | Thomson Csf | Procede et dispositif d'antibrouillage pour radar associe a une antenne a balayage electronique et radar comprenant un tel dispositif |
FR2734409B1 (fr) * | 1981-04-30 | 1997-06-27 | Radant Etudes | Procede et dispositif permettant de produire des dephasages d'un faisceau d'ondes electromagnetiques hyperfrequence |
FR2740615B2 (fr) * | 1982-10-04 | 1997-11-28 | Radant Etudes | Panneau attenuateur spatial hyperfrequence pour ondes electromagnetiques a direction quelconque |
FR2629920B1 (fr) * | 1984-01-23 | 1991-09-20 | Cmh Sarl | Filtre spatial adaptatif hyperfrequence fonctionnant a la reflexion et son procede de mise en oeuvre |
US4604629A (en) * | 1984-04-23 | 1986-08-05 | Hazeltine Corporation | Axial conductance angular filter |
FR2714768B1 (fr) * | 1984-07-12 | 1996-07-05 | Radant Etudes | Dispositif de balayage électronique à lentille active et source illuminatrice intégrée. |
US4638324A (en) * | 1984-12-10 | 1987-01-20 | Hazeltine Corporation | Resistive loop angular filter |
FR2718248B1 (fr) * | 1986-01-20 | 1996-08-30 | Thomson Csf Radant | Procédé d'exploitation par le calcul de signaux radar et dispositif pour sa mise en Óoeuvre. |
FR2597268B1 (fr) * | 1986-04-11 | 1988-06-24 | Centre Nat Rech Scient | Procede et dispositif de focalisation, sur un point a examiner, des antennes d'un reseau |
DE3744511A1 (de) * | 1987-12-30 | 1989-07-20 | Axel Dr Ing Sedlmeyer | Verfahren zur gesteuerten verteilung im spektralbereich der elektromagnetischen bzw. akustischen energie, die einen beliebig geformten koerper durchstrahlt oder/und von diesem reflektiert wird, um die detektierbarkeit zu erschweren, sowie zur indirekten reduzierung des rueckstrahlquerschnitts |
FR2738398B1 (fr) * | 1988-04-08 | 1997-11-28 | Thomson Csf Radant | Panneau dephaseur a diodes et son application a une lentille hyperfrequence et une antenne a balayage electronique |
FR2736778B1 (fr) * | 1988-05-06 | 2000-08-04 | Bony Gerard | Procede et systeme pour l'attenuation de l'effet de brouilleurs sur une antenne de reception de signaux radioelectriques |
FR2656468B1 (fr) * | 1989-12-26 | 1993-12-24 | Thomson Csf Radant | Source de rayonnement microonde magique et son application a une antenne a balayage electronique. |
FR2747842B1 (fr) * | 1990-06-15 | 1998-09-11 | Thomson Csf Radant | Lentille hyperfrequence multibande et son application a une antenne a balayage electronique |
FR2725077B1 (fr) * | 1990-11-06 | 1997-03-28 | Thomson Csf Radant | Lentille hyperfrequence bipolarisation et son application a une antenne a balayage electronique |
FR2671194B1 (fr) * | 1990-12-27 | 1993-12-24 | Thomson Csf Radant | Systeme de protection d'un equipement electronique. |
US5170169A (en) * | 1991-05-31 | 1992-12-08 | Millitech Corporation | Quasi-optical transmission/reflection switch and millimeter-wave imaging system using the same |
FR2786610B1 (fr) | 1997-02-03 | 2001-04-27 | Thomson Csf | Reflecteur hyperfrequence actif pour antenne a balayage electronique |
SE513226C2 (sv) | 1998-12-03 | 2000-08-07 | Ericsson Telefon Ab L M | Kontinuerligt apertursvepande antenn |
FR2789521A1 (fr) | 1999-02-05 | 2000-08-11 | Thomson Csf | Antenne a balayage electronique bi-bande, a reflecteur hyperfrequence actif |
FR2801729B1 (fr) * | 1999-11-26 | 2007-02-09 | Thomson Csf | Reflecteur hyperfrequence actif a balayage electronique |
FR2807213B1 (fr) | 2000-03-31 | 2003-07-25 | Thomson Csf | Dephaseur hyperfrequence, et antenne a balayage electronique comportant de tels dephaseurs |
FR2812457B1 (fr) | 2000-07-28 | 2004-05-28 | Thomson Csf | Reflecteur hyperfrequence actif a bi-polarisation, notamment pour antenne a balalyage electronique |
US6806843B2 (en) * | 2002-07-11 | 2004-10-19 | Harris Corporation | Antenna system with active spatial filtering surface |
US6885355B2 (en) * | 2002-07-11 | 2005-04-26 | Harris Corporation | Spatial filtering surface operative with antenna aperture for modifying aperture electric field |
US20060082511A1 (en) * | 2004-09-27 | 2006-04-20 | Osterhues Gordon D | Electronically controlled dual polarizer |
US7420523B1 (en) | 2005-09-14 | 2008-09-02 | Radant Technologies, Inc. | B-sandwich radome fabrication |
US7463212B1 (en) | 2005-09-14 | 2008-12-09 | Radant Technologies, Inc. | Lightweight C-sandwich radome fabrication |
EP2618128A1 (fr) * | 2012-01-19 | 2013-07-24 | Canon Kabushiki Kaisha | Dispositif de détection, détecteur et appareil d'imagerie l'utilisant |
US9099782B2 (en) | 2012-05-29 | 2015-08-04 | Cpi Radant Technologies Division Inc. | Lightweight, multiband, high angle sandwich radome structure for millimeter wave frequencies |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3392393A (en) * | 1962-05-03 | 1968-07-09 | Csf | Electrically controlled scanning antennas having a plurality of wave diffracting elements for varying the phase shift of a generated wave |
US3413637A (en) * | 1967-04-12 | 1968-11-26 | Hughes Aircraft Co | Multifunction antenna having selective radiation patterns |
US3708796A (en) * | 1969-10-15 | 1973-01-02 | B Gilbert | Electrically controlled dielectric panel lens |
US3955201A (en) * | 1974-07-29 | 1976-05-04 | Crump Lloyd R | Radar randome antenna with switchable R.F. transparency/reflectivity |
FR2379177A1 (fr) * | 1976-06-21 | 1978-08-25 | Hoffman Electronics Corp | Antenne produisant electriquement un motif de rayonnement tournant |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2959783A (en) * | 1948-03-16 | 1960-11-08 | Iams Harley | Scanning antennas using dielectric with variable refraction |
US2867801A (en) * | 1953-09-14 | 1959-01-06 | Elliott Brothers London Ltd | High frequency radio aerials |
US2986734A (en) * | 1958-07-02 | 1961-05-30 | Mini Of Supply | Electromagnetic wave lens and mirror systems |
US3213454A (en) * | 1960-03-21 | 1965-10-19 | Litton Ind Of Maryland | Frequency scanned antenna array |
US3276023A (en) * | 1963-05-21 | 1966-09-27 | Dorne And Margolin Inc | Grid array antenna |
US3354461A (en) * | 1963-11-15 | 1967-11-21 | Kenneth S Kelleher | Steerable antenna array |
US3569974A (en) * | 1967-12-26 | 1971-03-09 | Raytheon Co | Dual polarization microwave energy phase shifter for phased array antenna systems |
US3961333A (en) * | 1974-08-29 | 1976-06-01 | Texas Instruments Incorporated | Radome wire grid having low pass frequency characteristics |
US4021812A (en) * | 1975-09-11 | 1977-05-03 | The United States Of America As Represented By The Secretary Of The Air Force | Layered dielectric filter for sidelobe suppression |
US4169268A (en) * | 1976-04-19 | 1979-09-25 | The United States Of America As Represented By The Secretary Of The Air Force | Metallic grating spatial filter for directional beam forming antenna |
FR2395620A1 (fr) * | 1977-06-24 | 1979-01-19 | Radant Etudes | Perfectionnement au procede de balayage electronique utilisant des panneaux dielectriques dephaseurs |
-
1979
- 1979-02-05 FR FR7902918A patent/FR2448231A1/fr active Granted
-
1980
- 1980-01-31 US US06/117,243 patent/US4344077A/en not_active Expired - Lifetime
- 1980-02-04 DE DE8080400164T patent/DE3063006D1/de not_active Expired
- 1980-02-04 EP EP80400164A patent/EP0014650B1/fr not_active Expired
- 1980-02-04 AT AT80400164T patent/ATE3347T1/de not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3392393A (en) * | 1962-05-03 | 1968-07-09 | Csf | Electrically controlled scanning antennas having a plurality of wave diffracting elements for varying the phase shift of a generated wave |
US3413637A (en) * | 1967-04-12 | 1968-11-26 | Hughes Aircraft Co | Multifunction antenna having selective radiation patterns |
US3708796A (en) * | 1969-10-15 | 1973-01-02 | B Gilbert | Electrically controlled dielectric panel lens |
US3955201A (en) * | 1974-07-29 | 1976-05-04 | Crump Lloyd R | Radar randome antenna with switchable R.F. transparency/reflectivity |
FR2379177A1 (fr) * | 1976-06-21 | 1978-08-25 | Hoffman Electronics Corp | Antenne produisant electriquement un motif de rayonnement tournant |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2693039A1 (fr) * | 1981-04-28 | 1993-12-31 | Radant Etudes | Panneau atténuateur spatial hyperfréquence. |
DE3209697A1 (de) * | 1981-04-28 | 1994-01-13 | Radant Les Ulis Soc D Et | Dämpferplatte |
DE3209697C2 (de) * | 1981-04-28 | 1999-06-10 | Radant Etudes | Dämpferplatte |
FR2514203A1 (fr) * | 1981-10-05 | 1983-04-08 | Radant Etudes | Filtre adaptatif spatial hyperfrequence pour antenne a polarisation quelconque et son procede de mise en oeuvre |
EP0076760A1 (fr) * | 1981-10-05 | 1983-04-13 | Thomson-Csf Radant | Filtre adaptatif spatial hyperfréquence pour antenne à polarisation quelconque et son procédé de mise en oeuvre |
US4518966A (en) * | 1981-10-05 | 1985-05-21 | Societe D'etude Du Radant | Adaptive spatial microwave filter for multipolarized antennas and the process of its application |
DE3403447C1 (de) * | 1983-05-06 | 1996-05-09 | Cmh Sarl | Verfahren und Radom zum Schutz einer Radareinrichtung |
DE3441268C1 (de) * | 1984-01-23 | 1996-11-07 | Cmh Sarl | Verfahren und Vorrichtung zum Suchen und Bestimmen der Lage eines Störers |
Also Published As
Publication number | Publication date |
---|---|
EP0014650A1 (fr) | 1980-08-20 |
DE3063006D1 (en) | 1983-06-16 |
FR2448231B1 (fr) | 1983-06-24 |
EP0014650B1 (fr) | 1983-05-11 |
ATE3347T1 (de) | 1983-05-15 |
US4344077A (en) | 1982-08-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2448231A1 (fr) | Filtre spatial adaptatif hyperfrequence | |
ZA775102B (en) | Amendment,for modifying soil matrices | |
NL7701116A (nl) | Werkwijze voor de vervaardiging van voorwerpen uit driedimensionale weefsels, evenals voorwerpen vervaardigd onder toepassing van de werkwijze. | |
FR1522270A (fr) | Dérivés diphosphorés utilisables comme pesticides agricoles | |
NL7602502A (nl) | Werkwijze ter bereiding van heterocyclische verbindingen, alsmede werkwijze ter bereiding van fungicide preparaten hiermede. | |
ZA781703B (en) | Method for the treatment of wood by a wood preserving agent,as well as wood treated with such a wood preservative agent | |
NO790870L (no) | Traktor, saerlig for jordbruk. | |
IT8024559A0 (it) | Procedimento di rivestimento di semi. | |
BR7602657A (pt) | Aperfeicoamento em aparelho carregado por veiculo para o plantio de plantas | |
BR8008672A (pt) | Amortecedor de molas coaxiais de dois estagios | |
NL7712997A (nl) | Werkwijze ter behandeling van paddestoelen, alsmede de aldus behandelde paddestoelen. | |
IL59590A (en) | Agricultural apparatus for treating the subsoil | |
IT1097412B (it) | Albero portatile,in particolare per antenne direzionali | |
DE2860271D1 (en) | 2-arylamino-3,5-dinitro-benzotrifluorides, process for their preparation and their use as pesticides. | |
BR7802439A (pt) | Processo para tratamento de plantas de cereais | |
IT1165358B (it) | Macchina agricola per la lavorazione del terreno | |
JPS5442963A (en) | Receiving device | |
SE7509385L (sv) | For skogsplantering avsett, individuellt arbetande markberedningsdon | |
BE851822A (fr) | Procede de preparation du 1,2,3-triazole-4(5)-thiol | |
FR2300768A1 (fr) | Nouveaux composes thiopeniques phosphoryles, procede de preparation et application comme pesticides | |
GR63566B (en) | Plant protecting agents,e process for preparing these active compounds | |
JPS53144648A (en) | Cross polarization suppressing array antenna | |
IT1117489B (it) | Macchina agricola per la lavorazione del terreno | |
NL7804453A (nl) | Werkwijze ter bereiding van 2,4-dioxohexahydro-1,3,5- -triazine. | |
FR2337141A1 (fr) | Phosphoramidates utilisables comme pesticides |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GC | Lien (pledge) constituted | ||
ST | Notification of lapse |