[go: up one dir, main page]

EP1494310A1 - Optronical mast with two antennas - Google Patents

Optronical mast with two antennas Download PDF

Info

Publication number
EP1494310A1
EP1494310A1 EP04291628A EP04291628A EP1494310A1 EP 1494310 A1 EP1494310 A1 EP 1494310A1 EP 04291628 A EP04291628 A EP 04291628A EP 04291628 A EP04291628 A EP 04291628A EP 1494310 A1 EP1494310 A1 EP 1494310A1
Authority
EP
European Patent Office
Prior art keywords
mast
antenna
optronic
submarine
communication
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.)
Withdrawn
Application number
EP04291628A
Other languages
German (de)
French (fr)
Inventor
Sylvain Faure
Gérard Ribault
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sagem SA
Original Assignee
Sagem SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sagem SA filed Critical Sagem SA
Publication of EP1494310A1 publication Critical patent/EP1494310A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
    • B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
    • B63G8/38—Arrangement of visual or electronic watch equipment, e.g. of periscopes, of radar
    • 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
    • H01Q1/34—Adaptation for use in or on ships, submarines, buoys or torpedoes
    • 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
    • H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
    • H01Q21/205—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path providing an omnidirectional coverage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems

Definitions

  • the invention relates to the technical field of optronic masts having a plurality of antennas.
  • the invention relates more particularly to architectures electromechanical devices integrating an optronic standby mast with an antenna radar detection and a communication and listening antenna.
  • the periscope systems of submarines have experienced developments to meet particular needs for increased stealth submarine in military operations.
  • a submarine needs radar detection capabilities allowing to locate the vessels, as well as a communication antenna with and / or listening to the surface.
  • optronic masts are replacing optical periscopic. They make it possible to avoid practicing openings in the hull of the submarine, necessary for the entry and exit from a periscope tube. On the contrary, optronic masts a telescopic hoist without opening in the hull of the submarine, this which reinforces the tightness of the latter.
  • Figures 1 and 2 show a front and side view of a upper extremal part of an optronic mast according to the state of the art.
  • the optronic mast 1 thus comprises a portion 2, fixed in position, but that can be hoisted to the surface by a submarine, by a system telescopic for example.
  • a movable part in bearing 3 on this fixed part 2, in order to make a 360 ° observation in the field.
  • This mobile part 3 thus comprises the optronic head 4 of theater observation observations on the surface.
  • all the elements referenced by 4, 5 and 6 turn at the same time relative to the fixed part 2.
  • the antenna 6 of communication and listening explores the frequencies of radio communications (HF, VHF, SHF ).
  • the radar detection antenna 5 explores the radar emission frequencies (bands E to J).
  • This optronic mast structure comprising two antennas however, has disadvantages.
  • communication modules, radar detection and the optronic head of the mast depend on each other. This is particularly troublesome when the characteristics of the antennas are not not identical.
  • the radar detection module is directional. But he rotates with the head of the optronic mast. Therefore, in operation, such a module requires deposit information about the head of the optronic mast to correct its angular position of the steering angle optronic sighting. It is only once that this operation of correction is made that it can provide the operator the direction of arrival "Absolute" radar signals detected. In case of mast failure optronic, the radar detection module no longer has the information of angular position and can no longer indicate the radar transmission directions.
  • the optronic mast and communication module are unusable. Indeed, in the devices according to the state of the art, the communication antenna does not fixed only with the radar detection antenna and can not be fixed directly on the top of the optronic mast, in place of the module of radar detection.
  • the radiofrequency signals of the radar antenna 5 must pass through a rotating manifold and partitions between the different Mast speakers 1.
  • the crossing of the elements results in losses in transmission. These losses are for example of the order of 4 to 6 decibels to 18 GHz. They significantly degrade the sensitivity of the radar equipment.
  • the integration of two antennas on the head of a mast poses several technical problems. Indeed, the implantation of many (in the order of four or five) cables compatible with radio frequencies is difficult. On the one hand, they are cumbersome and rigid because of their design. The cables also require specific connectivity. On the other hand, the rotating collector for the radar antenna is complicated and also bulky. Its installation requires four to five microwave rotary joints.
  • the invention aims to overcome these disadvantages.
  • the object of the invention is in particular to provide a set comprising an optronic mast, a radar detection module and a module of communication and listening to avoid transmission losses.
  • Another object of the invention is to propose an optronic mast bi-antennary whose design and assembly are greatly simplified, thanks to a reduced number of pieces.
  • Another object of the invention is to propose an optronic mast bi-antennary which avoids crosstalk between detection modules and / or listening and communication.
  • Another object of the invention is to propose an optronic mast bi-antennary of which each module is independent of the others. Such a independence makes it possible to increase the use rate of the mast, in particular in the event of damage to one of the modules of the mast.
  • Another object of the invention is to propose an optronic mast whose volume is significantly reduced, which increases the stealth of the mast, while decreasing the constraints of mechanical strength and enslavement in the field of the masthead.
  • the invention proposes a submarine mast comprising a stator and a rotor movable in bearing relative to the stator, the rotor comprising an optronic observation head, characterized in that further comprises a radar detection antenna fixed on the stator.
  • the invention also relates to a submarine comprising a antenna according to the invention.
  • FIG. 3 schematically represents a front view of a extremal part of an example of optronic mast 1 according to the invention.
  • the optronic mast 1 comprises mainly two parts, all two of substantially tubular form.
  • Part 2 called 'stator' represents the support base of a part 3 called 'rotor'.
  • the rotor 3 is fixed on the stator 2 so as to be able to pivot in relation to the stator, on an angle of 360 ° for example.
  • the stator 2 is mounted on a hoisting mast secured to the hull of the submarine, it is fixed in position relative to the line of faith of the submarine.
  • the optronic mast 1 can thus be raised or lowered compared to submarine while maintaining the reference of the submarine's orientation.
  • Part 3 has at its upper end (the farthest submarine) an optronic detection head 4, allowing the observation of the surface, in the visible spectrum and the infrared for example. observation of these two spectra allows an observation of ships on the surface, as well as that a possible telemetry to evaluate the distance between the submarine and ships on the surface.
  • the optronic detection head 4 is known in itself and will not be described in detail in this description.
  • Figure 3 also shows the waterproof cables 7 allowing the transmission of information between the interior of the submarine and the head of the optronic mast, as well as the power supply of the modules of the head optronique 4.
  • the cables 7 are arranged inside the mast 1, so longitudinal to the mast 1.
  • Figure 4 shows the whole of the upper part of the mast optronic 1 according to the invention.
  • the mast thus has two antennas in addition of the optronic detection head 4.
  • a first antenna referenced by 5 represents a radar detection antenna.
  • a second antenna referenced 6 represents a communication antenna and listening.
  • Antenna 6 explores radio communication frequencies (HF, VHF, SHF, ).
  • the radar detection antenna 5 explores the frequencies radar transmission (bands E to J).
  • the antenna 6 of communication and listening is mounted on the part upper extremal of the optronic head 4. This antenna 6 of communication and listening turns well at the same time as the party optronique 4 of the mast 1. The fact that this antenna 6 is secured to the head optronic and turns at the same time that it is not annoying, since Communication and listening antennas are omni-directional.
  • the waterproof cables 7 allowing the transfer of information between the interior of the submarine and the antenna 6, as well as feeding this last are mounted internally in relation to the optronic mast and are thus also referenced 7 in Figure 4.
  • the radar detection antenna 5 is fixed in a collar on the stator 2 of the optronic mast 1.
  • the radar detection antenna is tubular.
  • Fixation means "Collar” means that the longitudinal walls of transmission / reception of Radar waves are substantially parallel to the direction of mast extension 1.
  • the longitudinal walls of the antenna 5 thus face the environment mast 1 over 360 °.
  • the radar has a view panoramic view of the mast environment 1.
  • the inside diameter of the opening of the constituent tube of the antenna 5 is excessively adapted to outer diameter of the rotor 3 visible in Figure 3, so as to allow the rotor 3 to rotate in the center of the antenna 5 fixed on the stator 2.
  • the antenna 5 is fixedly mounted on the stator 2 by any appropriate means. As the 3 and 4, the radar antenna 5 can be fixed to the stator 2 thanks to screws mounted on its base.
  • the antenna 5 is fixed rigidly on the base support 2, in under the optronic head 4.
  • the antenna 5 fixed on the stator 2
  • the optronic head 4 and, partly extremal, the antenna 6 of communication and listening.
  • the head 4 and the antenna 6 are integral with one of the other and turn at the same time.
  • the radar antenna 5 is no longer mobile with respect to submarine, but static. Because of its location, below the head optronic 4, its signals no longer cross the optronic mast 1.
  • the waterproof cables for the transfer of information and power supply between the submarine and the antenna 5 can be mounted externally with respect to optronic mast 1 and are referenced 8 in FIG. 8 pass outside the tube of the mast 1, which avoids any crosstalk between the different signals of the different modules.
  • the architecture of the bi-antennary optronic mast 1 of the invention has many advantages.
  • the detection antenna 5 radar does not turn. It is fixed rigidly on the stator part 2 of the mast optronics. This implantation makes it possible to directly connect the antenna 5 to the submergible cables 8 which bind the hoistable mast to the thick hull of the submarine. There is no longer any electrical crossing of the optronic mast 1. The radiofrequency transmission is only better.
  • the transmission elements there are fewer radiofrequencies inside the optronic mast.
  • the device according to the invention comprises only two to three tracks radio frequencies limited to radio communication bands.
  • these lower frequencies than those of radar listening lend themselves better to a integration of this type. In particular, there is less loss in transmission and smaller section cables.
  • the rotating part of the mast composed of the optronic head 4 and the communication antenna 6 is also more compact and less inertial.
  • the radar detection antenna 5 is fixed climb and does not depend on the pointing direction of the optronic mast 1. It can therefore be used when the latter is inoperative, for example off or down. Mast 1 without its radar detection antenna 5 can to be used normally.
  • the functions of optronic detection and communication or listening remains available when the antenna 5 of radar detection is dismounted for maintenance operations by example.
  • the upper part of the mast 1 constituting the rotor may comprise only one optronic head 4 and include an optional communication and listening antenna 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

The mast has a mobile rotor (3) including an optoelectronic head (4), and a radar warning antenna (5) fixed on a stator (2). A communication and monitoring antenna (6) is fixed on the optoelectronic head. Cables (8) sending information between a submarine and the antenna (5) are at the exterior of the mast. Cables (7) sending information between the submarine and the antenna (6) are at the interior of the mast. An independent claim is also included for a submarine.

Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

L'invention concerne le domaine technique des mâts optroniques comportant une pluralité d'antennes.The invention relates to the technical field of optronic masts having a plurality of antennas.

L'invention concerne plus particulièrement les architectures électromécaniques intégrant un mât optronique de veille avec une antenne de détection radar et une antenne de communication et d'écoute.The invention relates more particularly to architectures electromechanical devices integrating an optronic standby mast with an antenna radar detection and a communication and listening antenna.

ETAT DE LA TECHNIQUESTATE OF THE ART

Les systèmes périscopiques des sous-marins ont connu des développements pour répondre notamment aux besoins de furtivité accrue du sous-marin dans des opérations militaires.The periscope systems of submarines have experienced developments to meet particular needs for increased stealth submarine in military operations.

En effet, en plus du mât de périscopie permettant une observation visuelle et une télémétrie du théâtre des opérations se déroulant à la surface, un sous-marin a besoin de moyens de détection radar permettant de localiser les navires, ainsi qu'une antenne de communication avec et/ou d'écoute de la surface.Indeed, in addition to the periscopic mast allowing observation visual and telemetry of the theater of operations taking place at the surface, a submarine needs radar detection capabilities allowing to locate the vessels, as well as a communication antenna with and / or listening to the surface.

Ainsi, pour éviter le hissage de plusieurs mâts ou de plusieurs antennes, qui sont autant de moyens susceptibles de trahir la présence du sous-marin et de permettre son repérage par un navire ennemi, on a fixé sur le mât optronique les antennes de détection radar et de communication et d'écoute. On ne hisse ainsi qu'un seul mât, et non deux ou trois.Thus, to prevent the hoisting of several masts or of several antennas, which are all means likely to betray the presence of the submarine and allow it to be tracked by an enemy ship, on the optronic mast radar detection and communication antennas and listening. Only one mast is hoisted, not two or three.

A l'heure actuelle, les mâts optroniques remplacent les systèmes périscopiques optiques. Ils permettent en effet d'éviter de pratiquer des ouvertures dans la carène du sous-marin, nécessaires pour l'entrée et la sortie d'un tube de périscope. Les mâts optroniques permettent au contraire un hissage télescopique sans ouverture dans la carène du sous-marin, ce qui renforce l'étanchéité de ce dernier.At present, optronic masts are replacing optical periscopic. They make it possible to avoid practicing openings in the hull of the submarine, necessary for the entry and exit from a periscope tube. On the contrary, optronic masts a telescopic hoist without opening in the hull of the submarine, this which reinforces the tightness of the latter.

Les figures 1 et 2 représentent une vue de face et de profil d'une partie extrémale supérieure d'un mât optronique selon l'état de l'art. Figures 1 and 2 show a front and side view of a upper extremal part of an optronic mast according to the state of the art.

Le mât optronique 1 comporte ainsi une partie 2, fixe en gisement, mais qui peut être hissée à la surface par un sous-marin, par un système télescopique par exemple. On fixe une partie mobile en gisement 3 sur cette partie fixe 2, afin d'effectuer une observation en gisement sur 360°. Cette partie mobile 3 comporte ainsi la tête optronique 4 d'observation du théâtre des observations à la surface. On fixe sur la tête 4, de façon solidaire, un système de détection radar 5 et une antenne de communication 6, également solidaire de la tête 4 et donc de la partie mobile 3. Ainsi, l'ensemble des éléments référencés par 4, 5 et 6 tournent en même temps par rapport à la partie fixe 2.The optronic mast 1 thus comprises a portion 2, fixed in position, but that can be hoisted to the surface by a submarine, by a system telescopic for example. We fix a movable part in bearing 3 on this fixed part 2, in order to make a 360 ° observation in the field. This mobile part 3 thus comprises the optronic head 4 of theater observation observations on the surface. We fix on the head 4, in solidarity, a radar detection system 5 and a communication antenna 6, also integral with the head 4 and therefore the movable part 3. Thus, all the elements referenced by 4, 5 and 6 turn at the same time relative to the fixed part 2.

L'antenne 6 de communication et d'écoute explore les fréquences de communications radio (HF, VHF, SHF...). L'antenne 5 de détection radar explore les fréquences d'émission radar (bandes E à J).The antenna 6 of communication and listening explores the frequencies of radio communications (HF, VHF, SHF ...). The radar detection antenna 5 explores the radar emission frequencies (bands E to J).

Cette structure de mât optronique comportant deux antennes présente cependant des inconvénients.This optronic mast structure comprising two antennas however, has disadvantages.

Premièrement, les modules de communication, de détection radar et la tête optronique du mât dépendent les uns des autres. Ceci est particulièrement gênant lorsque les caractéristiques des antennes ne sont pas identiques.First, communication modules, radar detection and the optronic head of the mast depend on each other. this is particularly troublesome when the characteristics of the antennas are not not identical.

Par exemple, le module de détection radar est directionnel. Or, il tourne avec la tête du mât optronique. Par conséquent, en fonctionnement, un tel module requiert des informations de gisement concernant la tête du mât optronique pour corriger sa position angulaire de l'angle de la direction de visée optronique. C'est seulement une fois que cette opération de correction est effectuée qu'il peut fournir à l'opérateur la direction d'arrivée « absolue » des signaux radar détectés. En cas de panne du mât optronique, le module de détection radar ne dispose plus de l'information de position angulaire et ne peut plus indiquer les directions d'émission radar.For example, the radar detection module is directional. But he rotates with the head of the optronic mast. Therefore, in operation, such a module requires deposit information about the head of the optronic mast to correct its angular position of the steering angle optronic sighting. It is only once that this operation of correction is made that it can provide the operator the direction of arrival "Absolute" radar signals detected. In case of mast failure optronic, the radar detection module no longer has the information of angular position and can no longer indicate the radar transmission directions.

De plus, si l'antenne de détection radar est envoyée en réparation, le mât optronique et le module de communication sont inutilisables. En effet, dans les dispositifs selon l'état de l'art, l'antenne de communication ne se fixe qu'avec l'antenne de détection radar et ne peut venir se fixer directement sur le haut du mât optronique, en lieu et place du module de détection radar.In addition, if the radar detection antenna is sent for repair, the optronic mast and communication module are unusable. Indeed, in the devices according to the state of the art, the communication antenna does not fixed only with the radar detection antenna and can not be fixed directly on the top of the optronic mast, in place of the module of radar detection.

Deuxièmement, les signaux radiofréquences de l'antenne radar 5 doivent traverser un collecteur tournant et des cloisons entre les différentes enceintes du mât 1. La traversée des éléments se traduit par des pertes en transmission. Ces pertes sont par exemple de l'ordre de 4 à 6 décibels à 18 GHz. Elles dégradent significativement la sensibilité de l'équipement radar.Secondly, the radiofrequency signals of the radar antenna 5 must pass through a rotating manifold and partitions between the different Mast speakers 1. The crossing of the elements results in losses in transmission. These losses are for example of the order of 4 to 6 decibels to 18 GHz. They significantly degrade the sensitivity of the radar equipment.

Troisièmement, l'intégration de deux antennes sur la tête d'un mât pose plusieurs problèmes techniques. En effet, l'implantation de nombreux (de l'ordre de quatre ou cinq) câbles compatibles avec les radiofréquences est difficile. D'une part, ils sont encombrants et rigides de par leur conception. Les câbles nécessitent de plus une connectique spécifique. D'autre part, le collecteur tournant pour l'antenne radar est compliqué et également encombrant. Son installation nécessite en effet de quatre à cinq joints tournants hyperfréquence.Third, the integration of two antennas on the head of a mast poses several technical problems. Indeed, the implantation of many (in the order of four or five) cables compatible with radio frequencies is difficult. On the one hand, they are cumbersome and rigid because of their design. The cables also require specific connectivity. On the other hand, the rotating collector for the radar antenna is complicated and also bulky. Its installation requires four to five microwave rotary joints.

De plus, il existe un risque important de diaphonie entre les câbles véhiculant les radiofréquences. Une émission sur l'antenne de communication risque de perturber le module de détection des fréquences radar. Tout cela fait que l'assemblage selon l'état de la technique a un volume important qui peut avoir des conséquences non négligeables sur le comportement général du mât optronique. Par exemple, l'asservissement en gisement doit être performant pour contrecarrer le couple inertiel important de la tête optronique. Le mât doit de plus avoir une bonne tenue mécanique car le dispositif comporte un porte à faux important supérieur à 1 mètre, qui doit être mis en regard des contraintes imposées qui sont importantes, du fait des chocs et des paquets de mer. Ceci augmente notamment le coût de production des mâts optroniques de l'art antérieur.In addition, there is a significant risk of crosstalk between cables conveying radio frequencies. An emission on the antenna of communication may disrupt the frequency detection module radar. All this makes the assembly according to the state of the art has a significant volume that can have significant consequences for the general behavior of the optronic mast. For example, enslavement in deposit must be effective to counteract the inertial couple important of the optronic head. The mast must have a good hold mechanical because the device has a large overhang greater than 1 meter, which must be compared with the imposed constraints that are because of shocks and sea bunches. This increases in particular the production cost of the optronic masts of the prior art.

PRESENTATION DE L'INVENTIONPRESENTATION OF THE INVENTION

L'invention a pour but de pallier ces inconvénients. The invention aims to overcome these disadvantages.

L'invention a notamment pour but de fournir un ensemble comportant un mât optronique, un module de détection radar et un module de communication et d'écoute permettant d'éviter les pertes en transmission.The object of the invention is in particular to provide a set comprising an optronic mast, a radar detection module and a module of communication and listening to avoid transmission losses.

Un des autres buts de l'invention est de proposer un mât optronique bi-antennaire dont la conception et le montage sont grandement simplifiés, notamment grâce à un nombre de pièces réduit.Another object of the invention is to propose an optronic mast bi-antennary whose design and assembly are greatly simplified, thanks to a reduced number of pieces.

Un des autres buts de l'invention est de proposer un mât optronique bi-antennaire qui évite la diaphonie entre les modules de détection et/ou d'écoute et de communication.Another object of the invention is to propose an optronic mast bi-antennary which avoids crosstalk between detection modules and / or listening and communication.

Un des autres buts de l'invention est de proposer un mât optronique bi-antennaire dont chaque module est indépendant des autres. Une telle indépendance permet d'augmenter le taux d'utilisation du mât, notamment en cas d'avarie d'un des modules du mât.Another object of the invention is to propose an optronic mast bi-antennary of which each module is independent of the others. Such a independence makes it possible to increase the use rate of the mast, in particular in the event of damage to one of the modules of the mast.

Enfin, un autre but de l'invention est de proposer un mât optronique dont le volume est sensiblement réduit, ce qui augmente la furtivité du mât, tout en diminuant les contraintes de tenue mécanique et d'asservissement en gisement de la tête de mât.Finally, another object of the invention is to propose an optronic mast whose volume is significantly reduced, which increases the stealth of the mast, while decreasing the constraints of mechanical strength and enslavement in the field of the masthead.

A cet effet, l'invention propose un mât de sous-marin comportant un stator et un rotor mobile en gisement par rapport au stator, le rotor comportant une tête optronique d'observation, caractérisé en ce qu'il comporte en outre une antenne de détection radar fixée sur le stator.For this purpose, the invention proposes a submarine mast comprising a stator and a rotor movable in bearing relative to the stator, the rotor comprising an optronic observation head, characterized in that further comprises a radar detection antenna fixed on the stator.

L'invention est avantageusement complétée par les caractéristiques suivantes, prises seules ou en une quelconque de leur combinaison techniquement possible :

  • l'antenne de détection radar est fixée en collier sur le stator ;
  • il comporte une antenne de communication et d'écoute, fixée sur la tête optronique ;
  • les câbles d'alimentation de l'antenne de détection radar et les câbles de transferts d'informations entre le sous-marin et l'antenne de détection radar sont à l'extérieur du mât ;
  • les câbles d'alimentation de la tête optronique et les câbles de transferts d'informations entre le sous-marin d'une part et la tête optronique d'autre part sont à l'intérieur du mât ;
  • les câbles d'alimentation de l'antenne de communication et les câbles de transferts d'informations entre le sous-marin d'une part et l'antenne de communication d'autre part sont à l'intérieur du mât ;
  • l'antenne de détection radar est de forme tubulaire, le diamètre intérieur de l'ouverture du tube constitutif de l'antenne étant adapté par excès au diamètre extérieur du rotor ;
  • le stator est fixé sur une structure télescopique apte à permettre son hissage et son affalement par rapport au sous-marin ;
  • l'antenne de communication et d'écoute est fixée sur la partie supérieure de la tête optronique.
The invention is advantageously completed by the following features, taken alone or in any of their technically possible combination:
  • the radar detection antenna is clamped to the stator;
  • it includes a communication antenna and listening, attached to the optronic head;
  • the radar detection antenna power cables and the information transfer cables between the submarine and the radar detection antenna are outside the mast;
  • the power cables of the optronic head and the information transfer cables between the submarine on the one hand and the optronic head on the other hand are inside the mast;
  • the power cables of the communication antenna and the information transfer cables between the submarine on the one hand and the communication antenna on the other hand are inside the mast;
  • the radar detection antenna is of tubular shape, the inside diameter of the opening of the constituent tube of the antenna being adapted to the outside diameter of the rotor;
  • the stator is fixed on a telescopic structure adapted to allow its hoisting and its affaliation with respect to the submarine;
  • the communication and listening antenna is fixed on the upper part of the optronic head.

L'invention concerne également un sous-marin comportant une antenne selon l'invention.The invention also relates to a submarine comprising a antenna according to the invention.

PRESENTATION DES FIGURESPRESENTATION OF FIGURES

D'autres caractéristiques, buts et avantages de l'invention ressortiront de la description qui suit, qui est purement illustrative et non limitative, et qui doit être lue en regard des dessins annexés sur lesquels :

  • Les figures 1 et 2 déjà commentées, représentent une vue de face et de profil d'un système de mât optronique bi-antennaire selon l'état de l'art ;
  • La figure 3 représente schématiquement un mât optronique selon l'invention monté sans l'antenne de communication et sans l'antenne de détection radar ;
  • La figure 4 représente schématiquement un mât optronique selon l'invention comportant une antenne radar et une antenne de communication et d'écoute ;
  • La figure 5 représente schématiquement une vue en élévation d'une antenne de détection radar pouvant se fixer sur un mât optronique selon l'invention.
    • Other features, objects and advantages of the invention will emerge from the description which follows, which is purely illustrative and nonlimiting, and which should be read with reference to the appended drawings in which:
  • Figures 1 and 2 already commented, represent a front view and profile of a bi-antennal optronic mast system according to the state of the art;
  • FIG. 3 schematically represents an optronic mast according to the invention mounted without the communication antenna and without the radar detection antenna;
  • FIG. 4 schematically represents an optronic mast according to the invention comprising a radar antenna and a communication and listening antenna;
  • FIG. 5 schematically represents an elevational view of a radar detection antenna that can be fixed on an optronic mast according to the invention.

    • Sur l'ensemble des figures 1 à 5, les éléments de fonctions similaires portent des références numériques identiques.In all of FIGS. 1 to 5, elements of similar functions carry identical numerical references.

    DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

    La figure 3 représente schématiquement une vue de face d'une partie extrémale d'un exemple de mât optronique 1 selon l'invention.FIG. 3 schematically represents a front view of a extremal part of an example of optronic mast 1 according to the invention.

    Le mât optronique 1 comporte principalement deux parties, toutes deux de forme sensiblement tubulaire. Une partie 2 appelée 'stator' représente l'embase support d'une partie 3 appelée 'rotor'. Le rotor 3 est fixé sur le stator 2 de façon à pouvoir pivoter en gisement par rapport au stator, sur un angle de 360° par exemple.The optronic mast 1 comprises mainly two parts, all two of substantially tubular form. Part 2 called 'stator' represents the support base of a part 3 called 'rotor'. The rotor 3 is fixed on the stator 2 so as to be able to pivot in relation to the stator, on an angle of 360 ° for example.

    Le stator 2 est monté sur un mât de hissage solidaire de la carène du sous-marin, il est fixe en gisement par rapport à la ligne de foi du sous-marin. Le mât optronique 1 peut ainsi être hissé ou affalé par rapport au sous-marin en conservant la référence de l'orientation du sous-marin.The stator 2 is mounted on a hoisting mast secured to the hull of the submarine, it is fixed in position relative to the line of faith of the submarine. The optronic mast 1 can thus be raised or lowered compared to submarine while maintaining the reference of the submarine's orientation.

    La partie 3 comporte à son extrémité supérieure (la plus éloignée du sous-marin) une tête de détection optronique 4, permettant l'observation de la surface, dans le spectre visible et l'infrarouge par exemple. L'observation de ces deux spectres permet une observation de navires à la surface, ainsi qu'une éventuelle télémétrie permettant d'évaluer la distance entre le sous-marin et des navires à la surface. La tête de détection optronique 4 est connue en elle-même et ne sera pas décrite en détail dans la présente description.Part 3 has at its upper end (the farthest submarine) an optronic detection head 4, allowing the observation of the surface, in the visible spectrum and the infrared for example. observation of these two spectra allows an observation of ships on the surface, as well as that a possible telemetry to evaluate the distance between the submarine and ships on the surface. The optronic detection head 4 is known in itself and will not be described in detail in this description.

    La figure 3 montre également les câbles 7 étanches permettant la transmission des informations entre l'intérieur du sous-marin et la tête du mât optronique, ainsi que l'alimentation en énergie des modules de la tête optronique 4. Les câbles 7 sont disposés à l'intérieure du mât 1, de façon longitudinale au mât 1.Figure 3 also shows the waterproof cables 7 allowing the transmission of information between the interior of the submarine and the head of the optronic mast, as well as the power supply of the modules of the head optronique 4. The cables 7 are arranged inside the mast 1, so longitudinal to the mast 1.

    La figure 4 montre l'ensemble de la partie supérieure du mât optronique 1 selon l'invention. Le mât comporte ainsi deux antennes en plus de la tête 4 de détection optronique. Une première antenne référencée par 5 représente une antenne de détection radar. Une seconde antenne référencée par 6 représente une antenne de communication et d'écoute.Figure 4 shows the whole of the upper part of the mast optronic 1 according to the invention. The mast thus has two antennas in addition of the optronic detection head 4. A first antenna referenced by 5 represents a radar detection antenna. A second antenna referenced 6 represents a communication antenna and listening.

    L'antenne 6 explore les fréquences de communication radio (HF, VHF, SHF,...). L'antenne 5 de détection radar explore les fréquences d'émission radar (bandes E à J).Antenna 6 explores radio communication frequencies (HF, VHF, SHF, ...). The radar detection antenna 5 explores the frequencies radar transmission (bands E to J).

    L'antenne 6 de communication et d'écoute est montée sur la partie supérieure extrémale de la tête optronique 4. Cette antenne 6 de communication et d'écoute tourne ainsi en même temps que la partie optronique 4 du mât 1. Le fait que cette antenne 6 est solidaire de la tête optronique et tourne en même temps qu'elle n'est pas gênant, puisque les antennes de communication et d'écoute sont omnidirectionnelles.The antenna 6 of communication and listening is mounted on the part upper extremal of the optronic head 4. This antenna 6 of communication and listening turns well at the same time as the party optronique 4 of the mast 1. The fact that this antenna 6 is secured to the head optronic and turns at the same time that it is not annoying, since Communication and listening antennas are omni-directional.

    Les câbles étanches 7 permettant les transferts d'information entre l'intérieur du sous-marin et l'antenne 6, ainsi que l'alimentation de cette dernière sont montés en interne par rapport au mât optronique et sont ainsi également référencés par 7 sur la figure 4.The waterproof cables 7 allowing the transfer of information between the interior of the submarine and the antenna 6, as well as feeding this last are mounted internally in relation to the optronic mast and are thus also referenced 7 in Figure 4.

    L'antenne de détection radar 5 est quant à elle fixée en collier sur le stator 2 du mât optronique 1. Par exemple, comme le montre la figure 5, l'antenne de détection radar est de forme tubulaire. On entend par fixation « en collier » le fait que les parois longitudinales d'émission/réception des ondes radars sont sensiblement parallèles à la direction d'extension du mât 1. Les parois longitudinales de l'antenne 5 font ainsi face à l'environnement du mât 1 sur 360°. De par son montage en collier, le radar possède une vue panoramique de l'environnement du mât 1. Le diamètre intérieur de l'ouverture du tube constitutif de l'antenne 5 est adapté par excès au diamètre extérieur du rotor 3 visible sur la figure 3, de façon à permettre au rotor 3 de tourner au centre de l'antenne 5 fixe sur le stator 2. L'antenne 5 est montée fixe sur le stator 2 par tout moyen approprié. Comme le montrent les figures 3 et 4, l'antenne radar 5 peut être fixée au stator 2 grâce à des vis montées sur sa base.The radar detection antenna 5 is fixed in a collar on the stator 2 of the optronic mast 1. For example, as shown in FIG. 5, the radar detection antenna is tubular. Fixation means "Collar" means that the longitudinal walls of transmission / reception of Radar waves are substantially parallel to the direction of mast extension 1. The longitudinal walls of the antenna 5 thus face the environment mast 1 over 360 °. Because of its collar arrangement, the radar has a view panoramic view of the mast environment 1. The inside diameter of the opening of the constituent tube of the antenna 5 is excessively adapted to outer diameter of the rotor 3 visible in Figure 3, so as to allow the rotor 3 to rotate in the center of the antenna 5 fixed on the stator 2. The antenna 5 is fixedly mounted on the stator 2 by any appropriate means. As the 3 and 4, the radar antenna 5 can be fixed to the stator 2 thanks to screws mounted on its base.

    Ainsi, l'antenne 5 est fixée rigidement sur l'embase support 2, en dessous de la tête optronique 4. Thus, the antenna 5 is fixed rigidly on the base support 2, in under the optronic head 4.

    On rencontre ainsi, en partant du sous-marin vers la tête du mât optronique, premièrement l'antenne 5 fixée sur le stator 2, puis, dans une partie supérieure, la tête optronique 4 et, en partie extrémale, l'antenne 6 de communication et d'écoute. La tête 4 et l'antenne 6 sont solidaires l'une de l'autre et tournent en même temps.We thus meet, starting from the submarine towards the head of the mast optronic, firstly the antenna 5 fixed on the stator 2, then, in a upper part, the optronic head 4 and, partly extremal, the antenna 6 of communication and listening. The head 4 and the antenna 6 are integral with one of the other and turn at the same time.

    Par conséquent, l'antenne radar 5 n'est plus mobile par rapport au sous-marin, mais statique. De part sa situation, en dessous de la tête optronique 4, ses signaux ne traversent plus le mât optronique 1. Ainsi, les câbles étanches permettant le transfert d'informations et l'alimentation entre le sous-marin et l'antenne 5 peuvent être montés en externe par rapport au mât optronique 1 et sont référencés par 8 sur la figure 4. Les câbles étanches 8 passent à l'extérieur du tube du mât 1, ce qui évite toute diaphonie entre les différents signaux des différents modules.Therefore, the radar antenna 5 is no longer mobile with respect to submarine, but static. Because of its location, below the head optronic 4, its signals no longer cross the optronic mast 1. Thus, the waterproof cables for the transfer of information and power supply between the submarine and the antenna 5 can be mounted externally with respect to optronic mast 1 and are referenced 8 in FIG. 8 pass outside the tube of the mast 1, which avoids any crosstalk between the different signals of the different modules.

    Ainsi, l'architecture du mât 1 optronique bi-antennaire de l'invention présente de nombreux avantages.Thus, the architecture of the bi-antennary optronic mast 1 of the invention has many advantages.

    Tout d'abord, dans l'architecture « collier », l'antenne 5 de détection radar ne tourne pas. Elle est fixée rigidement sur la partie stator 2 du mât optronique. Cette implantation permet de connecter directement l'antenne 5 aux câbles 8 immergeables qui lient le mât hissable à la coque épaisse du sous-marin. Il n'y a plus de traversée électrique du mât optronique 1. La transmission des ondes radiofréquences n'est que meilleure.First, in the "collar" architecture, the detection antenna 5 radar does not turn. It is fixed rigidly on the stator part 2 of the mast optronics. This implantation makes it possible to directly connect the antenna 5 to the submergible cables 8 which bind the hoistable mast to the thick hull of the submarine. There is no longer any electrical crossing of the optronic mast 1. The radiofrequency transmission is only better.

    De plus, dans la nouvelle architecture, les éléments de transmission radiofréquences internes au mât optronique sont moins nombreux. Par exemple, le dispositif selon l'invention ne comporte que deux à trois pistes radiofréquences limitées aux bandes de communication radio. En outre, ces fréquences plus basses que celles de l'écoute radar se prêtent mieux à une intégration de ce type. On a notamment moins de perte en transmission et des câbles de section plus réduite.In addition, in the new architecture, the transmission elements There are fewer radiofrequencies inside the optronic mast. By example, the device according to the invention comprises only two to three tracks radio frequencies limited to radio communication bands. In addition, these lower frequencies than those of radar listening lend themselves better to a integration of this type. In particular, there is less loss in transmission and smaller section cables.

    On rappelle que le risque de diaphonie entre les voies radar et de communication est très faible, dans la mesure où le cheminement de leurs câbles respectifs est clairement séparé. Le cheminement des câbles de l'antenne 5 de détection radar est effectué en externe, tandis que le cheminement des câbles de l'antenne 6 de communication est effectué en interne par rapport au mât optronique.It is recalled that the risk of crosstalk between radar and communication is very weak, since the path of their respective cables is clearly separated. The routing of the cables the radar detection antenna 5 is made externally, while the routing of the cables of the communication antenna 6 is carried out in internal compared to the optronic mast.

    La partie tournante du mât composée de la tête optronique 4 et de l'antenne 6 de communication est également plus compacte et moins inertielle.The rotating part of the mast composed of the optronic head 4 and the communication antenna 6 is also more compact and less inertial.

    Enfin, la nouvelle architecture réduit notoirement la dépendance des modules les uns par rapport aux autres. L'antenne 5 de détection radar est montée fixe et ne dépend pas de la direction de pointage du mât optronique 1. Elle peut donc être utilisée lorsque ce dernier est inopérant, par exemple éteint ou en panne. Le mât 1 sans son antenne 5 de détection radar peut être utilisé normalement. Les fonctions de détection optronique et de communication ou d'écoute restent disponibles lorsque l'antenne 5 de détection radar est démontée pour des opérations de maintenance par exemple.Finally, the new architecture notoriously reduces the dependence of modules relative to each other. The radar detection antenna 5 is fixed climb and does not depend on the pointing direction of the optronic mast 1. It can therefore be used when the latter is inoperative, for example off or down. Mast 1 without its radar detection antenna 5 can to be used normally. The functions of optronic detection and communication or listening remains available when the antenna 5 of radar detection is dismounted for maintenance operations by example.

    Bien entendu, on comprend que la partie supérieure du mât 1 constituant le rotor peut ne comporter qu'une tête optronique 4 et ne comporter qu'une antenne 6 de communication et d'écoute en option.Of course, it is understood that the upper part of the mast 1 constituting the rotor may comprise only one optronic head 4 and include an optional communication and listening antenna 6.

    Claims (9)

    Mât (1 ) de sous-marin comportant un stator (2) et un rotor (3) mobile en gisement par rapport au stator, une antenne (5) de détection radar fixée sur le stator (2), le rotor (3) comportant une tête (4) optronique d'observation, caractérisé en ce que l'antenne (5) de détection radar est fixée en collier sur le stator (2).Submarine mast (1) comprising a stator (2) and a rotor (3) movable in bearing relation to the stator, a radar detection antenna (5) fixed on the stator (2), the rotor (3) comprising an optronic observation head (4), characterized in that the radar detection antenna (5) is clamped to the stator (2). Mât selon la revendication 1, caractérisé en ce qu'il comporte une antenne (6) de communication et d'écoute, fixée sur la tête optronique (4).Mast according to claim 1, characterized in that it comprises an antenna (6) for communication and listening, fixed on the optronic head (4). Mât selon l'une des revendications 1 ou 2, caractérisé en ce que les câbles (8) d'alimentation de l'antenne (5) de détection radar et les câbles (8) de transferts d'informations entre le sous-marin et l'antenne (5) de détection radar sont à l'extérieur du mât (1).Mast according to one of claims 1 or 2, characterized in that the cables (8) for feeding the radar detection antenna (5) and the cables (8) for transferring information between the submarine and the antenna (5) radar detection are outside the mast (1). Mât selon l'une des revendications 1 à 3, caractérisé en ce que les câbles (7) d'alimentation de la tête (4) optronique et les câbles de transferts d'informations entre le sous-marin d'une part et la tête (4) optronique d'autre part sont à l'intérieur du mât (1).Mast according to one of claims 1 to 3, characterized in that the cables (7) for feeding the optronic head (4) and the information transfer cables between the submarine on the one hand and the head (4) optronic on the other hand are inside the mast (1). Mât selon l'une des revendications 2 à 4, caractérisé en ce que les câbles (7) d'alimentation de l'antenne (6) de communication et les câbles de transferts d'informations entre le sous-marin d'une part et l'antenne (6) de communication d'autre part sont à l'intérieur du mât (1 ).Mast according to one of claims 2 to 4, characterized in that the cables (7) for supplying the communication antenna (6) and the data transfer cables between the submarine on the one hand and the antenna (6) communication on the other hand are inside the mast (1). Mât selon l'une des revendications 1 à 5, caractérisé en ce que l'antenne de détection radar est de forme tubulaire, le diamètre intérieur de l'ouverture du tube constitutif de l'antenne (5) étant adapté par excès au diamètre extérieur du rotor (2).Mast according to one of Claims 1 to 5, characterized in that the radar detection antenna is tubular in shape, the inside diameter of the opening of the tube constituting the antenna (5) being excessively adapted to the outside diameter of the rotor (2). Mât selon l'une des revendications 1 à 6, caractérisé en ce que le stator est fixé sur une structure télescopique apte à permettre son hissage et son affalement par rapport au sous-marin.Mast according to one of claims 1 to 6, characterized in that the stator is fixed on a telescopic structure adapted to allow its hoisting and its relative to the submarine. Mât selon l'une des revendications 2 à 7, caractérisé en ce que l'antenne (6) de communication et d'écoute est fixée sur la partie supérieure de la tête optronique (4).Mast according to one of claims 2 to 7, characterized in that the antenna (6) for communication and listening is fixed on the upper part of the optronic head (4). Sous-marin, caractérisé en ce qu'il comporte une antenne selon l'une des revendications 1 à 8.Submarine, characterized in that it comprises an antenna according to one of claims 1 to 8.
    EP04291628A 2003-07-01 2004-06-29 Optronical mast with two antennas Withdrawn EP1494310A1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR0307953A FR2857164B1 (en) 2003-07-01 2003-07-01 BI-ANTENNAIRE OPTRONIC MAT
    FR0307953 2003-07-01

    Publications (1)

    Publication Number Publication Date
    EP1494310A1 true EP1494310A1 (en) 2005-01-05

    Family

    ID=33427653

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP04291628A Withdrawn EP1494310A1 (en) 2003-07-01 2004-06-29 Optronical mast with two antennas

    Country Status (2)

    Country Link
    EP (1) EP1494310A1 (en)
    FR (1) FR2857164B1 (en)

    Cited By (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2943617A1 (en) * 2009-03-30 2010-10-01 Dcns MULTIFUNCTION TELESCOPIC MAT HEAD FOR SUBMARINE ENGINE
    DE102011084592A1 (en) 2011-10-17 2013-04-18 Rohde & Schwarz Gmbh & Co. Kg Antenna unit mounted on extensible mast in submarines, whose one end is provided with flange portion and mechanically stable system for connecting with the mast
    ITUB20161047A1 (en) * 2016-02-25 2017-08-25 Calzoni Srl SUBMERSIBLE ANTENNA.
    FR3090570A1 (en) * 2018-12-21 2020-06-26 Naval Group Telecommunication and navigation device of a submarine and associated submarine
    CN114094310A (en) * 2021-11-10 2022-02-25 中国舰船研究设计中心 Stealthy mast structure of collection communication and function integration of admitting air
    CN114291203A (en) * 2021-11-27 2022-04-08 宜昌测试技术研究所 A mast lift guide device

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    RU2532290C1 (en) * 2013-05-29 2014-11-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Комсомольский-на-Амуре государственный технический университет" (ФГБОУ ВПО "КнАГТУ") Ovchinnikov's salvage buoy

    Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4612543A (en) * 1983-05-05 1986-09-16 The United States Of America As Represented By The Secretary Of The Navy Integrated high-gain active radar augmentor
    US4640216A (en) * 1984-09-12 1987-02-03 Howaldtswerke-Deutsche Werft, Aktiengesellschaft Device for reducing vibrations of periscopes
    EP0364341A1 (en) * 1988-10-10 1990-04-18 S O P E L E M Telescopic periscope mast structure
    US5291211A (en) * 1992-11-20 1994-03-01 Tropper Matthew B A radar antenna system with variable vertical mounting diameter
    US5977918A (en) * 1997-09-25 1999-11-02 The United States Of America As Represented By The Secretary Of The Navy Extendible planar phased array mast

    Patent Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4612543A (en) * 1983-05-05 1986-09-16 The United States Of America As Represented By The Secretary Of The Navy Integrated high-gain active radar augmentor
    US4640216A (en) * 1984-09-12 1987-02-03 Howaldtswerke-Deutsche Werft, Aktiengesellschaft Device for reducing vibrations of periscopes
    EP0364341A1 (en) * 1988-10-10 1990-04-18 S O P E L E M Telescopic periscope mast structure
    US5291211A (en) * 1992-11-20 1994-03-01 Tropper Matthew B A radar antenna system with variable vertical mounting diameter
    US5977918A (en) * 1997-09-25 1999-11-02 The United States Of America As Represented By The Secretary Of The Navy Extendible planar phased array mast

    Cited By (8)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2943617A1 (en) * 2009-03-30 2010-10-01 Dcns MULTIFUNCTION TELESCOPIC MAT HEAD FOR SUBMARINE ENGINE
    EP2236407A1 (en) * 2009-03-30 2010-10-06 Dcns Telesopic masthead for submarine
    DE102011084592A1 (en) 2011-10-17 2013-04-18 Rohde & Schwarz Gmbh & Co. Kg Antenna unit mounted on extensible mast in submarines, whose one end is provided with flange portion and mechanically stable system for connecting with the mast
    ITUB20161047A1 (en) * 2016-02-25 2017-08-25 Calzoni Srl SUBMERSIBLE ANTENNA.
    FR3090570A1 (en) * 2018-12-21 2020-06-26 Naval Group Telecommunication and navigation device of a submarine and associated submarine
    CN114094310A (en) * 2021-11-10 2022-02-25 中国舰船研究设计中心 Stealthy mast structure of collection communication and function integration of admitting air
    CN114291203A (en) * 2021-11-27 2022-04-08 宜昌测试技术研究所 A mast lift guide device
    CN114291203B (en) * 2021-11-27 2024-04-09 宜昌测试技术研究所 Mast lifting guide device

    Also Published As

    Publication number Publication date
    FR2857164A1 (en) 2005-01-07
    FR2857164B1 (en) 2006-12-29

    Similar Documents

    Publication Publication Date Title
    FR2999344A1 (en) ON-BOARD METEOROLOGICAL RADAR ANTENNA FOR AIRCRAFT AND ASSOCIATED AIRCRAFT
    EP2649676A1 (en) Protective ballistic radome for a satellite antenna
    EP3027499B1 (en) Marine object able to float on water, comprising a deployable device for emitting and/or receiving electromagnetic waves
    FR3004586A1 (en) WEATHER RADAR WITH ROTARY ANTENNA
    EP1494310A1 (en) Optronical mast with two antennas
    FR3054940B1 (en) RADIOELECTRIC TRANSMITTING AND / OR RECEIVING DEVICE WITH INDEPENDENT OPENINGS
    WO2016046377A1 (en) Omnidirectional antenna
    EP3223360B1 (en) Dual-loop antenna for an immersed vehicle
    FR2907629A1 (en) SYSTEM FOR OBSERVING AND TRANSMITTING IMAGES, IN PARTICULAR FOR NAVAL SURFACE DRONE, AND NAVAL THERAPY
    WO2018078282A1 (en) Coating for the concealment of objects from the electromagnetic radiation of antennas
    CA2937510C (en) Communication device for an aircraft cabin
    EP3900107B1 (en) Naval platform mast
    EP2267837A1 (en) Integrated mast having two levels and a radome with removable pannel
    EP3340369A1 (en) Architecture for deployable source block, compact antenna and satellite comprising such an architecture
    EP1607762B1 (en) Integrated multi-function mast
    WO2010119195A1 (en) Floating periscope in particular for an underwater vehicle
    FR2934376A1 (en) SONAR TEMPERED "CLIP ON"
    EP1066741B1 (en) Electronic circuit structure with optimised space requirement according to available volume
    EP3394925B1 (en) Communication buoy and aquatic vehicle comprising such a buoy
    WO2014001526A1 (en) Device for monitoring the external environment of a platform, in particular a naval platform, periscope and platform comprising such a device
    FR3056044A1 (en) DEVICE FOR TRANSMITTING AND / OR RECEIVING RADIO WITH ANTENNAS AND INDEPENDENT ASSOCIATED OPENINGS
    FR2952490A1 (en) Electromagnetic waves e.g. amplitude modulating waves, transmission and/or receiving system for e.g. car, has housing connected between coupling devices, where housing processes received signals to be transmitted through antenna
    WO2015136178A1 (en) Antenna module for motor vehicle
    FR3032172A1 (en) SUBMARINE ENGINE COMPRISING AT LEAST ONE OPTRONIC MAT
    FR2490409A1 (en) VOR type antenna for helicopter - has high magnetic permeability shielding to protect antenna from interference caused by rotors

    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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

    AX Request for extension of the european patent

    Extension state: AL HR LT LV MK

    17P Request for examination filed

    Effective date: 20050307

    17Q First examination report despatched

    Effective date: 20050602

    AKX Designation fees paid

    Designated state(s): DE FR GB

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

    18D Application deemed to be withdrawn

    Effective date: 20051013