EP3086405A1 - Antenna architecture with multiple sources per beam and comprising a modular focal network - Google Patents
Antenna architecture with multiple sources per beam and comprising a modular focal network Download PDFInfo
- Publication number
- EP3086405A1 EP3086405A1 EP16166576.5A EP16166576A EP3086405A1 EP 3086405 A1 EP3086405 A1 EP 3086405A1 EP 16166576 A EP16166576 A EP 16166576A EP 3086405 A1 EP3086405 A1 EP 3086405A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sources
- bfn
- focal
- accesses
- waveguides
- 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
- 239000011159 matrix material Substances 0.000 claims abstract description 7
- 101100065298 Arabidopsis thaliana ENDO1 gene Proteins 0.000 claims abstract description 6
- 238000003491 array Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 26
- 230000010287 polarization Effects 0.000 claims description 16
- 230000002745 absorbent Effects 0.000 claims description 4
- 239000002250 absorbent Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- -1 for example Chemical compound 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
- H01Q1/288—Satellite antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0025—Modular arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/064—Two dimensional planar arrays using horn or slot aerials
-
- 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
- H01Q3/30—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 varying the relative phase between the radiating elements of an array
- H01Q3/34—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 varying the relative phase between the radiating elements of an array by electrical means
- H01Q3/40—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 varying the relative phase between the radiating elements of an array by electrical means with phasing matrix
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/007—Antennas or antenna systems providing at least two radiating patterns using two or more primary active elements in the focal region of a focusing device
Definitions
- the present invention relates to a multi-source antenna architecture per beam and having a modular focal array. It applies to the field of space applications such as satellite telecommunications and more particularly to MFPB antenna systems (in English: Multiple Feeds Per Beam) embedded on a satellite in order to ensure a mission with multichannel coverage.
- MFPB antenna systems in English: Multiple Feeds Per Beam
- each beam is formed by combining the accesses of several radio frequency sources of a focal network, each radiofrequency source consisting of a radiating element connected to a radiofrequency transmission and transmission channel. reception usually with two accesses.
- the RF sources of the focal network are grouped into a plurality of elementary cells having the same number of RF sources and forming a mesh.
- the mesh may have different geometric shapes, for example square or hexagonal. The accesses of the radiofrequency sources of each mesh can then be combined with each other to form a beam.
- radio frequency sources to form adjacent beams.
- the reuse of the radio frequency sources is generally carried out according to two dimensions of the space, which conventionally requires the use of a complex BFN beam formation network (Beam Forming Network).
- Beam Forming Network Beam Forming Network
- This difficulty is increased by the use of couplers common to several radio frequency sources, which allow the reuse of radio frequency sources and the independence of the beams between them.
- These antennas can not be built and assembled in modular form and the number of beams that can be formed is limited.
- the document FR 2 939 971 describes a particularly compact radiofrequency source, comprising a four-port RF chain, two transmission ports operating respectively in two polarizations P1, P2 orthogonal to each other and two receiving ports respectively operating in the two polarizations P1 and P2.
- the transmission ports and the reception ports operate respectively in two different frequency bands F1 and F2.
- This radiofrequency source comprising four independent accesses makes it possible to form two independent beams on transmission and on reception.
- the document FR 2,993,716 describes a transmission and reception MFPB antenna architecture comprising a focal network equipped with four-port compact radio frequency sources, in which each beam is developed by a group of four radio frequency sources of the network, combining four same polarization and the same frequency of each of the four radiofrequency sources.
- This antenna operates on transmission and reception, and two adjacent beams operating in orthogonal polarizations are developed by two groups of different RF sources, each consisting of four radio-frequency sources that can share one or two radio-frequency sources, depending on the arrangement of four RF sources in the mesh.
- This architecture makes it possible to reuse radiofrequency sources only in one dimension of the space and requires the use of a second identical antenna to obtain a good overlap of the beams in the two dimensions of the space.
- This antenna architecture is therefore particularly simple since two adjacent beams are made by different access combinations, which allows the use of independent BFNs, each BFN having combination circuits dedicated to the formation of a single beam.
- this document gives no information on a possibility of building the focal network of the antenna in a modular form, nor on the possibility of an assembly of sources and BFN without overlap between the components of different BFN.
- the object of the invention is to remedy the problems of known MFPB antennas and to realize a new MFPB antenna architecture whose dimension can be adjusted as required, without limitation, having a completely modular focal network for developing a very a large number of beams, each elementary module being functional and independent of the other modules, the different elementary modules being able to be assembled in a simple manner, on a single joint plane, without any overlap between the components of the different modules, and therefore without any hyperstatic constraint .
- the invention relates to a multi-source beam antenna comprising a focal array equipped with a plurality of RF radio frequency sources and a BFN beam forming network, each RF source having a radiating horn connected to an RF chain. transmission and reception, two transmission ports respectively operating in two different polarizations orthogonal to each other and two receiving ports respectively operating in said two different polarizations, the number of RF sources per beam being equal to four.
- the focal grating and the beamforming network are modular, the RF sources being grouped into subsets respectively integrated into different independent source blocks each having at least four RF sources and the BFN beam forming network. with several independent linear partial BFNs called BFN arrays.
- the antenna further comprises a single structuring interface plate having a front face on which are mounted the different source blocks, arranged next to each other, and a rear face on which the BFN strips are mounted side by side , the structuring plate comprising a plurality of traversing waveguides opening on the two front and rear faces to which are respectively connected the different accesses of the RF sources of each source block and secondly, corresponding accesses of the Linear partial BFNs, the corresponding accesses of the RF sources and the partial BFNs being connected to one another via the traversing waveguides of the interface plate.
- each block of sources may consist of a stack of several planar layers, each planar layer consisting of two complementary metal half-shells assembled together, the two half-shells of each planar layer integrating radio frequency components of the RF channels. of all the RF sources of the source block, each RF chain being connected to a corresponding radiating horn.
- the traversing waveguides of the interface plate may respectively be arranged in a matrix with several rows and several columns and the transmission and reception ports of the RF channels may all have the same orientation.
- the adjacent RF sources in the focal network have transmission ports and reception ports respectively connected four by four by the power combiners integrated in the BFN bars, two groups of four consecutive sources in the focal network sharing two sources in a single focal network direction and the BFN arrays extend parallel to said focal network direction corresponding to the source sharing.
- the interface plate may comprise, at the periphery of the focal network, available through waveguides connected to transmission and reception ports of RF sources but not connected to accesses of a BFN strip, the available through waveguides having a carbon-containing absorbent material.
- the invention relates to an antenna architecture operating on transmission and reception.
- the formation of the beams is therefore carried out in the two transmission and reception frequency bands.
- the remainder of the description is limited to a single antenna operating in transmission and reception.
- the figure 1 is a cross-sectional diagram, illustrating an example of a modular focal array, according to the invention.
- the focal network comprises a plurality of source blocks, a plurality of beamforming subareas, BFN1, BFN2, BFN3, called partial BFNs, and a structuring interface plate 30 covering all access to RF sources.
- Each source block has a subset of several RF radio sources, with fully integrated Tx transmit and receive Rx channels.
- All source blocks 15 comprise an identical number of N RF sources, where N is an integer greater than or equal to four, arranged in a matrix comprising at least two lines and at least two columns.
- the figure 3a illustrates a source block with eight RF sources arranged in four rows and two columns.
- each RF source comprises a radiating horn 10 connected to an RF chain 11 provided with four transmission or reception ports Tx1, Tx2, Rx1, Rx2, the RF chain being able, for example, to be similar to that described in the document FR 2,993,716 .
- Each RF chain has an OMT diplexant orthomode transducer and filters. The formation of the circular polarization is provided by couplers and / or by a polarizer for the Rx receive ports. Alternatively, the RF chain can be designed to operate in linear polarization.
- each source block is as compact as possible
- the various RF chains can be manufactured in two complementary parts, called half-shells, by a known machining process, the two half-shells then being assembled together by any type of connection known, conventionally by screws, or alternatively, by welding, or by gluing.
- all RF channels integrated in the same source block can be machined together, next to each other, in metal half-shells common to all RF sources of the source block.
- the assembly of a source block consists in assembling the half-shells two by two, then stacking the shells assembled in different planar layers 16, 17, and finally, stacking and assembling additional planar layers 18 containing the couplers and the axial polarizers.
- Each block of sources then has the advantage of having a planar multilayer architecture comprising a first stage consisting of radiating elements, for example turbinators, a second stage comprising the RF chains connected to the different horns, and three stages integrating couplers and couplers. axial polarizers.
- the four transmission accesses Tx1, Tx2 and reception Rx1, Rx2 of each RF source are arranged side by side on the rear face of the source block 15.
- the accesses corresponding to different RF sources are oriented parallel to each other and are arranged according to a matrix, in the same arrangement of rows and columns as the radiating horns of the corresponding RF sources, for example four rows and two columns in the case of Figures 3a, 3b and 3c .
- the only difference between the two arrangements represented on the Figures 3b and 3c relates to the direction of access that can be made in a direction X corresponding to the direction of the lines, or in a direction Y corresponding to the direction of the columns, the X and Y directions can be orthogonal in the case of a mesh square as depicted on the Figures 3b and 3c , or be oriented at 30 ° or 60 ° in the case of a hexagonal mesh as shown in figures 5a and 5b .
- the accesses corresponding to the same frequency and to the same polarization are arranged in the same order and are therefore aligned with each other.
- the different accesses of the integrated RF sources in each source block 15 are intended to be connected to traversing waveguides 31 corresponding, open at their two opposite ends, arranged in the structuring interface plate 30 common to all the source blocks 15 of the focal network of the antenna.
- the structuring interface plate 30 has dimensions that correspond to the dimensions of said focal network and therefore covers the entire surface of the focal network.
- the structuring interface plate 30 comprises at least as many passing waveguides 31 as there is access to RF sources to be connected, the traversing waveguides opening on two opposite faces, respectively front and rear, of the structuring interface plate.
- the arrangement of the traversing waveguides is identical to the access block layout of the source blocks as shown in FIG. figure 4 .
- all the source blocks 15 are mounted side-by-side on a front face of the structuring interface plate, without any overlap between them, and all the accesses of the RF sources integrated in the source blocks are connected to waveguides. respective through-wavelengths integrated in the structuring interface plate.
- each beam is elaborated by a group 20, 21, 22 of four RF sources of the focal network, the four RF sources being arranged in a two-line and two-column matrix, by combining, via the passing waveguides 31 of the interface plate 30, the access of the same polarization and the same frequency of each of the four RF sources.
- each group of four RF sources only one of the transmission ports, for example Tx1, and only one of the reception ports, for example Rx1, of each RF source are combined with the corresponding accesses of the other three RF sources of the group by dedicated power combiners 23a, 23b.
- each group of four RF sources are developed a transmission beam and a receiving beam. Since each RF source has two transmit ports and two receive ports, there remains one available Tx2 transmit port and one Rx2 receive port that can be used to form another transmit beam and another receive beam with RF sources from another adjacent group.
- Two adjacent beams operating in orthogonal polarizations are developed by two groups of adjacent RF sources, each consisting of four RF sources.
- the combined accesses in the two adjacent groups 20, 21 have the same frequency but polarizations different.
- the second available access is combined with corresponding accesses of a group of four adjacent RF sources.
- a direction of the focal network for example in the X direction
- the two adjacent groups 20, 21 have two sources in common and therefore share two RF sources among the four.
- no RF source is shared between the adjacent source groups 20, 22. The reuse of two RF sources among the four is therefore performed in a single direction of the focal network.
- each partial BFN can then be manufactured in a modular form, called a BFN strip, each BFN strip including all the power combiners 23a, 23b needed to combine the RF source accesses, four by four, for the formation of a line of beams.
- the BFN strip extends parallel to the access lines to be combined, has a width corresponding to the width of two access columns of the focal network and has a length corresponding to the length of a line of the focal network.
- the focal array comprises a partial BFN per line of beams to be formed.
- Each strip of BFN comprises a front face provided with two input access lines arranged in a matrix identical to that of two lines of crossing waveguides 31 of the interface plate 30 structuring and comprises a rear face provided with two beam output ports, respectively transmission and reception, group of four RF sources.
- all the partial BFN bars, BFN1, BFN2, BFN3, are mounted side by side on a rear face of the structuring interface plate 30, without any overlap between them, and all the input ports of the partial BFNs are connected to respective through waveguides integrated in the structuring interface plate.
- the input ports of each partial BFN are connected to respective accesses of the RF sources integrated in the source blocks via the traversing waveguides of the structuring interface plate.
- the focal network there may be some available waveguides 19 which are connected to accesses of the RF sources but which are not used for the formation of the beams and thus not connected to the accesses of a partial BFN .
- an absorbent material is inserted locally in the available through waveguides of the structuring interface plate to which are connected the unused access.
- the absorbent material contains carbon, such as, for example, silicon carbide.
- This antenna architecture makes it possible to reuse radiofrequency sources in only one dimension of the space and requires the use of a second identical antenna to obtain a good overlap of the beams in the two dimensions of the space.
- This antenna architecture is therefore particularly simple since two adjacent beams are made by different access combinations, without using couplers, which allows the use of independent power combiners dedicated to the formation of a single beam.
- the structuring interface plate provides support, assembly and interconnections between all source blocks and all partial BFNs on a single joint plane and allows a total decoupling between the different RF sources integrated in the elementary source blocks mounted on its front face and the various partial BFN mounted on its rear face.
- the number of integrated RF channels in each source block is not fixed and can be adapted as desired depending on the shape of the cover to be made.
- the structuring interface plate makes it possible to connect RF channels and BFN having waveguides of different sections as well as waveguides with different orientations, which simplifies the design of BFN.
- the orientation of the accesses of the RF chains being identical for all the RF sources, it makes it possible to facilitate the routing of the power combiners within the BFNs in a plane parallel to the focal network, without overlap between the BFN and to reduce the congestion of each RF source and mesh size of the focal network.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
L'antenne MFPB comporte une pluralité de sources RF à quatre accès et un BFN, le nombre de sources par faisceau étant égal à quatre, et une plaque d'interface (30) structurante unique, couvrant l'ensemble des accès des sources RF, et comportant une pluralité de guides d'onde traversants (31). Les guides d'onde traversants (31) sont disposés selon une matrice à plusieurs lignes et plusieurs colonnes. les sources RF sont regroupées en sous-ensembles (20, 21, 22) respectivement intégrés dans différents blocs de sources (15) indépendants montés les uns à côté des autres sur la face avant de la plaque d'interface (30), les accès des sources RF de chaque bloc de sources étant raccordés aux guides d'onde traversants. Le BFN est constitué de plusieurs BFN partiels linéaires indépendants, appelés barrettes de BFN (BFN1, BFN2, BFN3), montés côte à côte sur la face arrière de la plaque d'interface (30), les différents accès des combineurs de puissance (23a, 23b) intégrés dans chaque barrette de BFN étant raccordés aux guides d'onde traversants.The MFPB antenna has a plurality of four-port RF sources and a BFN, the number of sources per beam being four, and a single structuring interface plate (30) covering all accesses of the RF sources, and having a plurality of through waveguides (31). The traversing waveguides (31) are arranged in a matrix with several lines and several columns. the RF sources are grouped into sub-assemblies (20, 21, 22) respectively integrated in different independent source blocks (15) mounted next to one another on the front face of the interface plate (30), the accesses RF sources of each source block being connected to the traversing waveguides. The BFN consists of several independent linear partial BFNs, called BFN arrays (BFN1, BFN2, BFN3), mounted side by side on the rear face of the interface plate (30), the different power combiner accesses (23a , 23b) integrated in each BFN strip being connected to the traversing waveguides.
Description
La présente invention concerne une architecture d'antenne à plusieurs sources par faisceau et comportant un réseau focal modulaire. Elle s'applique au domaine des applications spatiales telles que les télécommunications par satellite et plus particulièrement aux systèmes d'antennes MFPB (en anglais : Multiple Feeds Per Beam) embarqués sur un satellite afin d'assurer une mission à couverture mutifaisceaux.The present invention relates to a multi-source antenna architecture per beam and having a modular focal array. It applies to the field of space applications such as satellite telecommunications and more particularly to MFPB antenna systems (in English: Multiple Feeds Per Beam) embedded on a satellite in order to ensure a mission with multichannel coverage.
Dans une antenne MFPB à plusieurs sources radiofréquences RF par faisceau, chaque faisceau est formé en combinant les accès de plusieurs sources radiofréquences d'un réseau focal, chaque source radiofréquence étant constituée d'un élément rayonnant connecté à une chaîne radiofréquence d'émission et de réception généralement à deux accès. Pour cela, les sources RF du réseau focal sont groupées en une pluralité de cellules élémentaires comportant le même nombre de sources RF et formant un maillage. Selon l'implantation des sources radiofréquences dans le réseau focal et le nombre sources radiofréquences dans chaque maille, la maille peut avoir différentes formes géométriques, par exemple carrée ou hexagonale. Les accès des sources radiofréquences de chaque maille peuvent alors être combinés entre eux pour former un faisceau. Pour obtenir un bon recouvrement des faisceaux, il est connu de réutiliser une ou plusieurs sources radiofréquences pour former des faisceaux adjacents. La réutilisation des sources radiofréquences est généralement réalisée selon deux dimensions de l'espace, ce qui nécessite classiquement, l'utilisation d'un réseau de formation de faisceaux BFN (en anglais : Beam Forming Network) complexe, qui comporte des circuits de combinaison de puissance disposés axialement, qui s'entrecroisent les uns avec les autres, et il est alors impossible de séparer physiquement les circuits de combinaison dédiés à la formation de faisceaux différents. Cette difficulté est accrue par l'usage de coupleurs communs à plusieurs sources radiofréquences, qui permettent la réutilisation des sources radiofréquences et l'indépendance des faisceaux entre eux. Ces antennes ne peuvent donc pas être construites et assemblées sous forme modulaire et le nombre de faisceaux qui peuvent être formés est limité.In an MFPB antenna with multiple radio RF sources per beam, each beam is formed by combining the accesses of several radio frequency sources of a focal network, each radiofrequency source consisting of a radiating element connected to a radiofrequency transmission and transmission channel. reception usually with two accesses. For this, the RF sources of the focal network are grouped into a plurality of elementary cells having the same number of RF sources and forming a mesh. Depending on the location of the radio frequency sources in the focal network and the number of radiofrequency sources in each mesh, the mesh may have different geometric shapes, for example square or hexagonal. The accesses of the radiofrequency sources of each mesh can then be combined with each other to form a beam. To obtain a good coverage of the beams, it is known to reuse one or more radio frequency sources to form adjacent beams. The reuse of the radio frequency sources is generally carried out according to two dimensions of the space, which conventionally requires the use of a complex BFN beam formation network (Beam Forming Network). power arranged axially, which intersect with each other, and it is then impossible to physically separate the combination circuits dedicated to the formation of different beams. This difficulty is increased by the use of couplers common to several radio frequency sources, which allow the reuse of radio frequency sources and the independence of the beams between them. These antennas can not be built and assembled in modular form and the number of beams that can be formed is limited.
Le document
Le document
Le but de l'invention est de remédier aux problèmes des antennes MFPB connues et de réaliser une nouvelle architecture d'antenne MFPB dont la dimension peut être ajustée selon les besoins, sans limitation, comportant un réseau focal complètement modulaire permettant d'élaborer un très grand nombre de faisceaux, chaque module élémentaire étant fonctionnel et indépendant des autres modules, les différents modules élémentaires pouvant être assemblés de façon simple, sur un plan de joint unique, sans aucun recouvrement entre les composants des différents modules, et donc sans aucune contrainte hyperstatique.The object of the invention is to remedy the problems of known MFPB antennas and to realize a new MFPB antenna architecture whose dimension can be adjusted as required, without limitation, having a completely modular focal network for developing a very a large number of beams, each elementary module being functional and independent of the other modules, the different elementary modules being able to be assembled in a simple manner, on a single joint plane, without any overlap between the components of the different modules, and therefore without any hyperstatic constraint .
Pour cela, l'invention concerne une antenne à plusieurs sources par faisceau comportant un réseau focal équipé d'une pluralité de sources radiofréquences RF et d'un réseau de formation de faisceaux BFN, chaque source RF comportant un cornet rayonnant relié à une chaîne RF d'émission et de réception, deux accès d'émission fonctionnant respectivement dans deux polarisations différentes orthogonales entre elles et deux accès de réception fonctionnant respectivement dans lesdites deux polarisations différentes, le nombre de sources RF par faisceau étant égal à quatre. Le réseau focal et le réseau de formation de faisceaux sont modulaires, les sources RF étant regroupées en sous-ensembles respectivement intégrés dans différents blocs de sources indépendants les uns des autres, comportant chacun au moins quatre sources RF et le réseau de formation de faisceaux BFN comportant plusieurs BFN partiels linéaires indépendants appelés barrettes de BFN. L'antenne comporte en outre une plaque d'interface structurante unique comportant une face avant sur laquelle sont montés les différents blocs de sources, disposés les uns à côté des autres, et une face arrière sur laquelle les barrettes de BFN sont montées côte à côte, la plaque structurante comportant une pluralité de guides d'onde traversants débouchant sur les deux faces avant et arrière auxquels sont respectivement raccordés d'une part les différents accès des sources RF de chaque bloc de sources et d'autre part, des accès correspondants des BFN partiels linéaires, les accès correspondants des sources RF et des BFN partiels étant reliés entre eux par l'intermédiaire des guides d'onde traversants de la plaque d'interface.For this purpose, the invention relates to a multi-source beam antenna comprising a focal array equipped with a plurality of RF radio frequency sources and a BFN beam forming network, each RF source having a radiating horn connected to an RF chain. transmission and reception, two transmission ports respectively operating in two different polarizations orthogonal to each other and two receiving ports respectively operating in said two different polarizations, the number of RF sources per beam being equal to four. The focal grating and the beamforming network are modular, the RF sources being grouped into subsets respectively integrated into different independent source blocks each having at least four RF sources and the BFN beam forming network. with several independent linear partial BFNs called BFN arrays. The antenna further comprises a single structuring interface plate having a front face on which are mounted the different source blocks, arranged next to each other, and a rear face on which the BFN strips are mounted side by side , the structuring plate comprising a plurality of traversing waveguides opening on the two front and rear faces to which are respectively connected the different accesses of the RF sources of each source block and secondly, corresponding accesses of the Linear partial BFNs, the corresponding accesses of the RF sources and the partial BFNs being connected to one another via the traversing waveguides of the interface plate.
Avantageusement, chaque bloc de sources peut être constitué d'un empilement de plusieurs couches planaires, chaque couche planaire étant constituée de deux demi-coquilles métalliques complémentaires assemblées entre elles, les deux demi-coquilles de chaque couche planaire intégrant des composants radiofréquences des chaînes RF de toutes les sources RF du bloc de sources, chaque chaîne RF étant raccordée à un cornet rayonnant correspondant.Advantageously, each block of sources may consist of a stack of several planar layers, each planar layer consisting of two complementary metal half-shells assembled together, the two half-shells of each planar layer integrating radio frequency components of the RF channels. of all the RF sources of the source block, each RF chain being connected to a corresponding radiating horn.
Avantageusement, les guides d'ondes traversants de la plaque d'interface peuvent être respectivement disposés selon une matrice à plusieurs lignes et plusieurs colonnes et les accès d'émission et de réception des chaînes RF peuvent avoir tous la même orientation.Advantageously, the traversing waveguides of the interface plate may respectively be arranged in a matrix with several rows and several columns and the transmission and reception ports of the RF channels may all have the same orientation.
Avantageusement, les sources RF adjacentes dans le réseau focal ont des accès d'émission et des accès de réception respectivement reliés quatre par quatre par les combineurs de puissance intégrés dans les barrettes de BFN, deux groupes de quatre sources consécutifs dans le réseau focal partageant deux sources en commun selon une seule direction du réseau focal et les barrettes de BFN s'étendent parallèlement à ladite direction du réseau focal correspondant au partage de sources.Advantageously, the adjacent RF sources in the focal network have transmission ports and reception ports respectively connected four by four by the power combiners integrated in the BFN bars, two groups of four consecutive sources in the focal network sharing two sources in a single focal network direction and the BFN arrays extend parallel to said focal network direction corresponding to the source sharing.
Avantageusement, la plaque d'interface peut comporter, en périphérie du réseau focal, des guides d'onde traversants disponibles, raccordés à des accès d'émission et de réception de sources RF mais non connectés à des accès d'une barrette de BFN, les guides d'onde traversants disponibles comportant un matériau absorbant contenant du carbone.Advantageously, the interface plate may comprise, at the periphery of the focal network, available through waveguides connected to transmission and reception ports of RF sources but not connected to accesses of a BFN strip, the available through waveguides having a carbon-containing absorbent material.
D'autres particularités et avantages de l'invention apparaîtront clairement dans la suite de la description donnée à titre d'exemple purement illustratif et non limitatif, en référence aux dessins schématiques annexés qui représentent :
-
figure 1 : un schéma, en coupe transversale, d'un exemple de réseau focal modulaire, selon l'invention ; -
figures 2a et 2b : deux schémas en perspective et en vue de dessous, illustrant, respectivement, un exemple de sources RF à quatre accès, et un exemple de disposition des quatre accès, selon l'invention ; -
figure 3a : un schéma, en perspective, d'un exemple de bloc de sources, selon l'invention ; -
figures 3b et 3c : deux schémas, en vue de dessous, de deux exemples d'arrangement des accès du bloc de sources de lafigure 3a , selon l'invention ; -
figure 4 : un schéma illustrant un arrangement des trous traversants débouchant sur les faces avant et arrière d'une plaque d'interface structurante, selon l'invention ; -
figure 5a : un schéma, en vue partielle de dessous, illustrant un exemple de position des barrettes de BFN partiels et les différents groupes d'accès combinés sur une plaque d'interface structurante, selon l'invention ; -
figure 5b : une vue de détail de deux groupes de sources adjacents partageant deux sources RF avec la combinaison des accès pour la formation de deux faisceaux d'émission et de deux faisceaux de réception, selon l'invention ; -
figure 6 : un schéma en perspective, d'un exemple d'aménagement des barrettes de BFN partiels, sur la plaque d'interface structurante, selon l'invention.
-
figure 1 : a diagram, in cross section, of an example of a modular focal array, according to the invention; -
Figures 2a and 2b two diagrams in perspective and in view from below, illustrating, respectively, an example of RF sources with four accesses, and an example of arrangement of the four accesses, according to the invention; -
figure 3a : a diagram, in perspective, of an example of source block, according to the invention; -
Figures 3b and 3c : two diagrams, seen from below, of two examples of arrangement of the accesses of the source block of thefigure 3a according to the invention; -
figure 4 : a diagram illustrating an arrangement of the through holes opening on the front and rear faces of a structuring interface plate, according to the invention; -
figure 5a : a diagram, in partial view from below, illustrating an example of position of the partial BFN bars and the different access groups combined on a structuring interface plate, according to the invention; -
figure 5b : a detail view of two groups of adjacent sources sharing two RF sources with the combination of accesses for the formation of two transmit beams and two receive beams, according to the invention; -
figure 6 : a perspective diagram, of an example of arrangement of the partial BFN bars, on the structuring interface plate, according to the invention.
L'invention concerne une architecture d'antenne fonctionnant à l'émission et à la réception. La formation des faisceaux est donc réalisé dans les deux bandes de fréquence d'émission et de réception. Cependant, pour obtenir un bon recouvrement des faisceaux dans les deux directions de l'espace, il est nécessaire d'utiliser deux antennes dédiées aux deux bandes de fréquence, les deux antennes ayant une architecture identique. La suite de la description est limitée à une seule antenne fonctionnant en émission et en réception.The invention relates to an antenna architecture operating on transmission and reception. The formation of the beams is therefore carried out in the two transmission and reception frequency bands. However, to obtain a good coverage of the beams in the two directions of space, it is necessary to use two antennas dedicated to the two frequency bands, the two antennas having an identical architecture. The remainder of the description is limited to a single antenna operating in transmission and reception.
La
Avantageusement, toutes les chaînes RF intégrées dans un même bloc de sources peuvent être usinées ensembles, les unes à coté des autres, dans des demi-coquilles métalliques communes à toutes les sources RF du bloc de sources. Dans ce cas, l'assemblage d'un bloc de sources consiste à assembler les demi-coquilles deux à deux, puis à empiler les coquilles assemblées dans des couches planaires différentes 16, 17, et enfin, à empiler et assembler des couches planaires additionnelles 18 contenant les coupleurs et les polariseurs axiaux. La fabrication de tous les composants radiofréquences par usinage dans des pièces métalliques communes à toutes les sources RF, procure une très grande robustesse de chaque chaîne RF vis-à -vis des dispersions de performances liées à la fabrication des composants. En effet, tous les composants correspondant à une même bande de fréquence étant localisés dans une même couche physique, tous les chemins électriques dédiés aux deux polarisations de chaque chaîne RF sont symétriques et induisent donc la même dispersion de phase.Advantageously, all RF channels integrated in the same source block can be machined together, next to each other, in metal half-shells common to all RF sources of the source block. In this case, the assembly of a source block consists in assembling the half-shells two by two, then stacking the shells assembled in different
Chaque bloc de sources présente alors l'avantage d'avoir une architecture multicouches planaire comportant un premier étage constitué des éléments rayonnants, par exemple des cornets, un deuxième étage comportant les chaînes RF raccordées aux différents cornets, et trois étages intégrant des coupleurs et des polariseurs axiaux.Each block of sources then has the advantage of having a planar multilayer architecture comprising a first stage consisting of radiating elements, for example turbinators, a second stage comprising the RF chains connected to the different horns, and three stages integrating couplers and couplers. axial polarizers.
Comme représenté sur les deux arrangements illustrés, en vues de dessous, sur les
Les différents accès des sources RF intégrées dans chaque bloc de sources 15 sont destinés à être raccordés à des guides d'ondes traversants 31 correspondants, ouverts à leurs deux extrémités opposées, aménagés dans la plaque d'interface structurante 30 commune à tous les blocs de sources 15 du réseau focal de l'antenne. La plaque d'interface structurante 30 a des dimensions qui correspondent aux dimensions dudit réseau focal et couvre donc la totalité de la surface du réseau focal. La plaque d'interface structurante 30 comporte au moins autant de guides d'ondes traversants 31 qu'il y a d'accès de sources RF à raccorder, les guides d'onde traversants débouchant sur deux faces opposées, respectivement avant et arrière, de la plaque d'interface structurante. La disposition des guides d'onde traversants est identique à la disposition en matrice des accès des blocs de sources comme représenté sur la
Comme représenté sur les
Deux faisceaux adjacents fonctionnant dans des polarisations orthogonales sont élaborés par deux groupes de sources RF adjacents, constitués chacun de quatre sources RF. Les accès combinés dans les deux groupes adjacents 20, 21 ont la même fréquence mais des polarisations différentes. Pour cela, en émission et en réception, le deuxième accès disponible est combiné avec des accès correspondants d'un groupe de quatre sources RF adjacents. Selon une direction du réseau focal, par exemple selon la direction X, les deux groupes adjacents 20, 21 comportent deux sources en commun et partagent donc deux sources RF parmi les quatre. Dans l'autre direction, par exemple la direction Y, aucune source RF n'est partagée entre les groupes de sources adjacents 20, 22. La réutilisation de deux sources RF parmi les quatre est donc réalisée selon une seule direction du réseau focal.Two adjacent beams operating in orthogonal polarizations are developed by two groups of adjacent RF sources, each consisting of four RF sources. The combined accesses in the two
Comme il n'y a un partage de sources que dans une seule direction du réseau focal, la formation des différents faisceaux peut être réalisée en utilisant des BFN partiels linéaires, indépendants et sans aucun recouvrement entre eux, chaque BFN partiel, BFN1, BFN2, BFN3, étant dédié la formation d'une ligne de faisceaux. Les BFN partiels s'étendent selon la direction du réseau focal correspondant à la direction où il y a un partage de sources entre les groupes adjacents, c'est-à -dire selon la direction X dans notre exemple. Chaque BFN partiel peut alors être fabriqué sous une forme modulaire, appelée barrette de BFN, chaque barrette de BFN comportant tous les combineurs de puissance 23a, 23b nécessaires à la combinaison des accès des sources RF, quatre par quatre, pour la formation d'une ligne de faisceaux. La barrette de BFN s'étend parallèlement aux lignes d'accès à combiner, a une largeur correspondant à la largeur de deux colonnes d'accès du réseau focal et a une longueur correspondant à la longueur d'une ligne du réseau focal. Le réseau focal comporte un BFN partiel par ligne de faisceaux à former. Chaque barrette de BFN comporte une face avant munie de deux lignes d'accès d'entrée arrangés selon une matrice identique à celle de deux lignes de guides d'onde traversants 31 de la plaque d'interface 30 structurante et comporte une face arrière munie de deux accès de sortie de faisceau, respectivement d'émission et de réception, par groupe de quatre sources RF. Ainsi, comme représenté sur le schéma de la
Cette architecture d'antenne ne permet de réutiliser les sources radiofréquence que dans une seule dimension de l'espace et nécessite l'utilisation d'une deuxième antenne identique pour obtenir un bon recouvrement des faisceaux dans les deux dimensions de l'espace. Cette architecture d'antenne est donc particulièrement simple puisque deux faisceaux adjacents sont réalisés par des combinaisons d'accès différents, sans utilisation de coupleurs, ce qui permet l'utilisation de combineurs de puissance indépendants dédiés à la formation d'un seul faisceau.This antenna architecture makes it possible to reuse radiofrequency sources in only one dimension of the space and requires the use of a second identical antenna to obtain a good overlap of the beams in the two dimensions of the space. This antenna architecture is therefore particularly simple since two adjacent beams are made by different access combinations, without using couplers, which allows the use of independent power combiners dedicated to the formation of a single beam.
La plaque d'interface structurante assure le support, l'assemblage et les interconnexions entre tous les blocs de sources et tous les BFN partiels sur un plan de joint unique et permet un total découplage entre les différentes sources RF intégrées dans les blocs de sources élémentaires montés sur sa face avant et les différents BFN partiels montés sur sa face arrière. Contrairement aux architectures d'antenne classiques, le nombre de chaînes RF intégrées dans chaque bloc de sources n'est pas figé et peut être adapté à volonté en fonction de la forme de la couverture à réaliser. Par ailleurs, il est possible d'incorporer des guides d'onde traversants torsadés (en anglais : twisted) dans la plaque d'interface structurante. La plaque d'interface structurante permet alors de connecter des chaînes RF et des BFN ayant des guides d'onde de sections différentes ainsi que des guides d'onde ayant des orientations différentes, ce qui permet de simplifier la conception des BFN. L'orientation des accès des chaînes RF étant identique pour toutes les sources RF, cela permet de faciliter le routage des combineurs de puissance au sein des BFN dans un plan parallèle au réseau focal, sans recouvrement entre les BFN et de diminuer l'encombrement de chaque source RF et la taille de la maille du réseau focal.The structuring interface plate provides support, assembly and interconnections between all source blocks and all partial BFNs on a single joint plane and allows a total decoupling between the different RF sources integrated in the elementary source blocks mounted on its front face and the various partial BFN mounted on its rear face. Unlike conventional antenna architectures, the number of integrated RF channels in each source block is not fixed and can be adapted as desired depending on the shape of the cover to be made. Moreover, it is possible to incorporate twisted through waveguides (in English: twisted) in the structuring interface plate. The structuring interface plate makes it possible to connect RF channels and BFN having waveguides of different sections as well as waveguides with different orientations, which simplifies the design of BFN. The orientation of the accesses of the RF chains being identical for all the RF sources, it makes it possible to facilitate the routing of the power combiners within the BFNs in a plane parallel to the focal network, without overlap between the BFN and to reduce the congestion of each RF source and mesh size of the focal network.
Bien que l'invention ait été décrite en liaison avec des modes de réalisation particuliers, il est bien évident qu'elle n'y est nullement limitée et qu'elle comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci entrent dans le cadre de l'invention.Although the invention has been described in connection with particular embodiments, it is obvious that it is not limited thereto and that it includes all the technical equivalents of the means described and their combinations if they are within the scope of the invention.
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1500871A FR3035548B1 (en) | 2015-04-24 | 2015-04-24 | MULTI-SOURCE ANTENNA ARCHITECTURE BY BEAM AND COMPRISING A MODULAR FOCAL NETWORK |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3086405A1 true EP3086405A1 (en) | 2016-10-26 |
EP3086405B1 EP3086405B1 (en) | 2018-03-07 |
Family
ID=54065915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16166576.5A Active EP3086405B1 (en) | 2015-04-24 | 2016-04-22 | Antenna architecture with multiple sources per beam and comprising a modular focal network |
Country Status (5)
Country | Link |
---|---|
US (1) | US10135144B2 (en) |
EP (1) | EP3086405B1 (en) |
CA (1) | CA2928165C (en) |
ES (1) | ES2670321T3 (en) |
FR (1) | FR3035548B1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10340603B2 (en) * | 2016-11-23 | 2019-07-02 | At&T Intellectual Property I, L.P. | Antenna system having shielded structural configurations for assembly |
FR3061364B1 (en) | 2016-12-22 | 2020-06-19 | Thales | MECHANICAL ARCHITECTURE OF A BEAM FORMER FOR SINGLE-SOURCE SINGLE-SOURCE MFPB ANTENNA MFPB ACCORDING TO TWO SPACE DIMENSIONS AND METHOD FOR PRODUCING THE BEAM FORMER |
US10379198B2 (en) | 2017-04-06 | 2019-08-13 | International Business Machines Corporation | Determining positions of transducers for receiving and/or transmitting wave signals |
CN112164883B (en) * | 2020-08-21 | 2022-09-23 | è¥¿å®‰ç©ºé—´æ— çº¿ç”µæŠ€æœ¯ç ”ç©¶æ‰€ | Layered feed structure for maintaining pressure between sub-layers in temperature-varying environment |
CN112164885B (en) * | 2020-08-24 | 2022-10-14 | è¥¿å®‰ç©ºé—´æ— çº¿ç”µæŠ€æœ¯ç ”ç©¶æ‰€ | Amplitude-phase optimization design method based on multi-feed source synthesis network |
CN113381204B (en) * | 2021-05-19 | 2023-01-06 | åŒ—äº¬äº¤é€šå¤§å¦ | Novel planar array antenna |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2764738A1 (en) * | 1997-06-13 | 1998-12-18 | Thomson Csf | INTEGRATED TRANSMISSION OR RECEPTION DEVICE |
US20090315796A1 (en) * | 2008-06-18 | 2009-12-24 | Mitsubishi Electric Corporation | Antenna apparatus, radar and waveguide |
FR2939971A1 (en) | 2008-12-16 | 2010-06-18 | Thales Sa | COMPACT EXCITATION ASSEMBLY FOR GENERATING CIRCULAR POLARIZATION IN AN ANTENNA AND METHOD FOR PRODUCING SUCH AN EXCITATION ASSEMBLY |
US20140022138A1 (en) * | 2012-07-20 | 2014-01-23 | Thales | Multibeam Transmitting and Receiving Antenna with Multiple Feeds Per Beam, System of Antennas and Satellite Telecommunication System Containing Such an Antenna |
EP2822095A1 (en) * | 2013-06-24 | 2015-01-07 | Delphi Technologies, Inc. | Antenna with fifty percent overlapped subarrays |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0701087D0 (en) * | 2007-01-19 | 2007-02-28 | Plasma Antennas Ltd | A displaced feed parallel plate antenna |
-
2015
- 2015-04-24 FR FR1500871A patent/FR3035548B1/en not_active Expired - Fee Related
-
2016
- 2016-04-22 EP EP16166576.5A patent/EP3086405B1/en active Active
- 2016-04-22 CA CA2928165A patent/CA2928165C/en active Active
- 2016-04-22 ES ES16166576.5T patent/ES2670321T3/en active Active
- 2016-04-22 US US15/136,755 patent/US10135144B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2764738A1 (en) * | 1997-06-13 | 1998-12-18 | Thomson Csf | INTEGRATED TRANSMISSION OR RECEPTION DEVICE |
US20090315796A1 (en) * | 2008-06-18 | 2009-12-24 | Mitsubishi Electric Corporation | Antenna apparatus, radar and waveguide |
FR2939971A1 (en) | 2008-12-16 | 2010-06-18 | Thales Sa | COMPACT EXCITATION ASSEMBLY FOR GENERATING CIRCULAR POLARIZATION IN AN ANTENNA AND METHOD FOR PRODUCING SUCH AN EXCITATION ASSEMBLY |
US20140022138A1 (en) * | 2012-07-20 | 2014-01-23 | Thales | Multibeam Transmitting and Receiving Antenna with Multiple Feeds Per Beam, System of Antennas and Satellite Telecommunication System Containing Such an Antenna |
FR2993716A1 (en) | 2012-07-20 | 2014-01-24 | Thales Sa | MULTIFUNCTIONAL MULTI-SOURCE SENDING AND RECEIVING ANTENNA BY BEAM, ANTENNA SYSTEM AND SATELLITE TELECOMMUNICATION SYSTEM COMPRISING SUCH ANTENNA |
EP2822095A1 (en) * | 2013-06-24 | 2015-01-07 | Delphi Technologies, Inc. | Antenna with fifty percent overlapped subarrays |
Non-Patent Citations (1)
Title |
---|
"Reflexionsfreie Abschlusswiderstände und Dämpfungsglieder", TASCHENBUCH DER HOCHFREQUENZTECHNIK,, 1 January 1968 (1968-01-01), pages 443 - 445, XP001367596 * |
Also Published As
Publication number | Publication date |
---|---|
FR3035548A1 (en) | 2016-10-28 |
ES2670321T3 (en) | 2018-05-30 |
EP3086405B1 (en) | 2018-03-07 |
US10135144B2 (en) | 2018-11-20 |
CA2928165A1 (en) | 2016-10-24 |
US20160315391A1 (en) | 2016-10-27 |
CA2928165C (en) | 2023-08-15 |
FR3035548B1 (en) | 2017-05-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3086405B1 (en) | Antenna architecture with multiple sources per beam and comprising a modular focal network | |
EP3073569B1 (en) | Compact butler matrix , planar bi-dimensional beam-former, and planar antenna with such a butler matrix | |
EP2807702B1 (en) | Two dimensional multibeam former, antenna using such and satellite telecommunication system. | |
EP2869400B1 (en) | Bi-polarisation compact power distributor, network of a plurality of distributors, compact radiating element and planar antenna having such a distributor | |
EP2869396B1 (en) | Power divider including a T-coupler in the E-plane, radiating network and antenna including such a radiating network | |
EP2688142B1 (en) | Multi-beam transmission and reception antenna with a plurality of sources per beam, antenna system and satellite telecommunication system comprising such an antenna | |
CA2821242C (en) | Multi-beam antenna and antennae system including compact sources and satellite telecommunication system including at least one such antenna | |
EP3086409B1 (en) | Structural antenna module including elementary radiating sources with individual orientation, radiating panel, radiating network and multibeam antenna comprising at least one such module | |
EP2664030A1 (en) | Printed slot-type directional antenna, and system comprising an array of a plurality of printed slot-type directional antennas | |
EP3176875A1 (en) | Active antenna architecture with reconfigurable hybrid beam formation | |
FR3105611A1 (en) | Dual polarized antenna | |
EP2637254B1 (en) | Planar antenna for terminal operating with dual circular polarisation, airborne terminal and satellite telecommunication system comprising at least one such antenna | |
EP3340369B1 (en) | Architecture for deployable source block, compact antenna and satellite comprising such an architecture | |
EP3340386B1 (en) | Mechanical architecture of a beam former for single-reflector mfpb antenna with sharing of sources in two spatial dimensions, and process for producing the beam former | |
EP2764577A1 (en) | Multibeam source | |
FR3053166A1 (en) | MULTI-BEAM SOURCE FOR MULTI-BEAM ANTENNA | |
FR2952759A1 (en) | Reflector focal network and antenna for use in satellite to cover chosen geographical area of geostationary orbit, has sub-reflector misaligning and/or deforming beam from selected sources to produce spot near area |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
17P | Request for examination filed |
Effective date: 20170411 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
GRAJ | Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted |
Free format text: ORIGINAL CODE: EPIDOSDIGR1 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: H01P 3/12 20060101ALN20170814BHEP Ipc: H01Q 21/00 20060101ALI20170814BHEP Ipc: H01Q 21/06 20060101ALI20170814BHEP Ipc: H01Q 1/28 20060101AFI20170814BHEP Ipc: H01Q 25/00 20060101ALN20170814BHEP |
|
INTG | Intention to grant announced |
Effective date: 20170919 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP Ref country code: AT Ref legal event code: REF Ref document number: 977484 Country of ref document: AT Kind code of ref document: T Effective date: 20180315 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 3 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602016001795 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2670321 Country of ref document: ES Kind code of ref document: T3 Effective date: 20180530 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20180307 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180607 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 977484 Country of ref document: AT Kind code of ref document: T Effective date: 20180307 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180607 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180608 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602016001795 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20180430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180709 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180422 |
|
26N | No opposition filed |
Effective date: 20181210 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180422 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190430 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180307 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180307 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20160422 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180707 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20230328 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20230328 Year of fee payment: 8 Ref country code: ES Payment date: 20230512 Year of fee payment: 8 Ref country code: DE Payment date: 20230314 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20240314 Year of fee payment: 9 |