EP1401051B1 - Système d'antenne pour plusieurs bandes de fréquences - Google Patents

Système d'antenne pour plusieurs bandes de fréquences Download PDF

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Publication number
EP1401051B1
EP1401051B1 EP03019762A EP03019762A EP1401051B1 EP 1401051 B1 EP1401051 B1 EP 1401051B1 EP 03019762 A EP03019762 A EP 03019762A EP 03019762 A EP03019762 A EP 03019762A EP 1401051 B1 EP1401051 B1 EP 1401051B1
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EP
European Patent Office
Prior art keywords
antenna
previous
mhz
range
mast
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.)
Expired - Lifetime
Application number
EP03019762A
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German (de)
English (en)
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EP1401051A1 (fr
Inventor
Wolf Rathai
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Aeromaritime Systembau GmbH
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Aeromaritime Systembau GmbH
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Priority to SI200330567T priority Critical patent/SI1401051T1/sl
Publication of EP1401051A1 publication Critical patent/EP1401051A1/fr
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Publication of EP1401051B1 publication Critical patent/EP1401051B1/fr
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/40—Element having extended radiating surface
    • 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
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole

Definitions

  • the invention relates to an antenna system for at least two frequency ranges, in particular for use in submarines.
  • the dimensions of the antenna are determined by the wavelengths associated with the respective frequency range.
  • a total length of ⁇ / 2 therefore, for example, in the ultra-short wave range at a frequency of 100 MHz, a 1.5 m long antenna body is required to achieve a resonant radiation. Through suitable measures, it is possible to shorten these lengths, but usually only to a small extent.
  • the respective available frequency range of the antenna is limited, is usually used for different frequency ranges one of the number of frequency ranges corresponding number of antennas.
  • antennas in different frequency ranges are required for communication or position location or the like, for example in: VHF low 30-88 MHz VHF 100-164 MHz UHF 220 - 400 MHz IFF (identification friend foe) 1030/1090 MHz GPS 1575.41 / 1227.6 MHz Inmarsat RX 1530-1545 MHz Inmarsat TX 1626.5 - 1646.5 MHz
  • a radio communication apparatus having a multi-band panning antenna structure.
  • the antenna structure comprises a multiband radiating element and a multiband sleeve, whereby the antenna can be tuned to different resonances.
  • the multi-band radiating element and the multi-band sleeve are attached to the housing of the device via a coaxial feed line which serves to insulate these elements from the housing.
  • U.S. Patent No. 5,949,383 describes an antenna structure having a centrally fed dipole antenna having two beam sections extending from a central feed point along a substrate. To the central feed point is electrically coupled a feed section comprising an input line and a grounded line. Between the first beam portion and the grounded line, a balun circuit (Balun) extends. For dual band operation, a balancing shunt may be present for the balun.
  • U.S. Patent No. 5,248,988 describes an antenna for use with multiple frequencies.
  • the antenna has two signal feed systems which are capacitively decoupled in terms of direct current.
  • a feed-in system intended for the car-telephone frequency band is coupled to the entire antenna, while the other signal system provided for the AM / FM radio frequency band is separated from the radiating element operating in the car-telephone frequency band. Due to the large frequency differences can be achieved in this way stable and separate signal systems.
  • the object of the present invention is therefore to realize a stack antenna for transmitting and receiving in at least two different frequency ranges, which is characterized by particular compactness and mechanical strength combined with very good emission characteristics of the individual frequency ranges.
  • a shortening of the antenna system is accordingly achieved according to the invention by using at least one radiator of the system for more than one frequency range.
  • a compact construction and a mechanical stability result from the fact that the electrical separation or mutual isolation of the two dipole radiators of the antenna of a frequency range is ensured by a short-circuit path for the respective frequency range, so that the two radiators can be fastened mechanically directly and on the same antenna support ,
  • the central element of the entire system is therefore the antenna carrier, which in turn can be firmly attached to the hull of the boat by means of an insulating structure, for example made of plastic.
  • an insulating structure for example made of plastic.
  • antenna systems laterally from the mast outgoing and electrically isolated from this boom, which are characterized by a much lower mechanical stability and stiffness, not needed.
  • a metallic element of elongated design is used as the antenna support. It is possible to provide this element with a continuous axial bore to allow the passage of cables for feeding the individual antennas of the system.
  • the antenna carrier is electrically insulated by being with his turned to the hull of the submarine end in a mounted on a base plate to be fixed to the base holding part of an insulating material, such as ceramic, plastic, plastic or the like, is introduced and fixed.
  • distal or proximal or the prefixes distal or. Proximally used this is to be understood throughout the position with respect to the submarine hull.
  • the individual radiating bodies of the dipole antennas to be used are applied to this common carrier and connected to it in a mechanically stable manner.
  • the mode of operation of the use of a common radiator is explained on the basis of two dipole antennas applied to the common carrier for two frequency ranges.
  • the basic principle is applicable to the same antenna support even when using several dipole antennas with corresponding frequency ranges.
  • the system for use of two frequency ranges consists of three mechanically applied to the antenna support and preferably rotationally symmetrical constructed radiators.
  • the emitter used for both frequency ranges is arranged axially between the other two and is formed by a plurality of concentric pipe sections. Some of these pipe sections are electrically connected to each other in pairs at one end face, wherein the end faces of the pipe sections which are opposite to the conductively connected end faces are open, that is not electrically conductive, connected to one another.
  • the innermost of the tube pieces forming the common radiator is electrically conductively connected to the antenna carrier at its distal end relative to the submarine hull.
  • the Proximalende of the innermost pipe section of the common radiator is on the one hand for stability reasons mechanically, but, for example, by a spacer or retaining ring made of ceramic, plastic or other insulating material, not electrically conductive to the antenna support and on the other hand with the proximal end of the second pipe section seen from the inside the common radiator electrically connected.
  • the second radiator of the first frequency range is arranged both mechanically stable and electrically conductively connected to the proximal end of the antenna carrier.
  • the second radiator of the second frequency range is mechanically stable and arranged in an electrically conductive manner on the distal end of the antenna carrier or on the distal end of the innermost tube section which is electrically conductively connected to the antenna carrier at this end.
  • the dipole antenna for the first frequency range is formed by the common, centrally located radiator and the radiator attached to the proximal end, while the dipole antennas for the second frequency range are formed by the common, centrally located radiator and the radiator attached to the distal end.
  • the feed of the two antennas is preferably carried out in each case via a coaxial cable.
  • the first feed point for the first frequency range is in this case connected to the proximal end of the first tube section of the common radiator connected to the second tube section, while the second feed point for the first frequency range is located on the associated second radiator mounted on the proximal end of the antenna carrier.
  • the first feed point for the second frequency range is located at the distal end of the second tube section of the common radiator, while the second feed point for the second frequency range is located on the associated, at the distal end of the antenna carrier or the innermost piece of pipe of the common radiator second radiator.
  • the first short-circuit line thus corresponds to a short-circuited coaxial cable whose inner conductor is formed by the outer surface of the antenna carrier and the outer conductor by the inner surface of the innermost pipe section of the common radiator.
  • the second short-circuit line corresponds to a short-circuited coaxial cable whose inner conductor is formed by the outer surface of the innermost tube portion of the common radiator and the outer conductor thereof by the inner surface of the second tube portion of the common radiator.
  • the high-impedance resonance of the corresponding Short circuit line is in each case in the band center of the relevant frequency range.
  • the two short-circuit lines in different frequency ranges "lock", it may be necessary that they have a different length. This can be achieved by the innermost tube piece and the second tube piece of the common radiator have a different length.
  • the characteristic impedance of the respective short-circuit lines In order not to degrade the impedance of the respective parallel-connected antenna, the characteristic impedance of the respective short-circuit lines must be chosen so that the impedance of the line at the frequency limits is high enough against 50 ohms. Since the characteristic impedance of the short-circuit lines is determined in each case by the clear diameter of the outer conductor, this is selected accordingly in order to obtain the highest possible impedance, for the frequency range of ⁇ / 4 resonance.
  • the inner diameter of the innermost pipe section of the common radiator are adapted as the clear diameter of the outer conductor of the first short-circuit line and the inner diameter of the second tube section of the common radiator as the inner diameter of the outer conductor of the first short-circuit line respectively to the frequency range to be covered by the corresponding antenna.
  • the outer diameter of the second tube piece of the common radiator can be adjusted accordingly. It is not necessary that the second pipe section is solid. Rather, it may be the case of the second pipe section to two electrically interconnected at its two front ends connected pipe sections, whereby both in terms of weight and material consumption cheaper, but for the antenna electrically equivalent solution in the form of a hollow ring body is formed.
  • an upper limit for the outer diameter of the common radiator is given by the space available for the antenna system.
  • the outer diameter of the central antenna carrier is preferably selected so that a maximum mechanical stability of the antenna carrier is ensured even when using a tube for carrying out the required for the operation of the antenna cable and fixed in this case by the thickness of the cable inner diameter of the tube.
  • a decoupling of the feed lines is achieved by a mounted on the insulating support member of the antenna carrier ferrite ring through which all feed lines are guided.
  • the length of the feed lines is chosen so that due to resonance effects in each frequency range used the mutual influence of the feed points is minimized.
  • antennas can be attached to the attached to the distal end of the antenna carrier emitters.
  • these monopole and / or helical antennas are mounted on a plate which is connected by means of insulating spacers with the opening edge of the radiator. Possible materials here are plastics, ceramics or the like.
  • This additional antenna system on the free, front end of a basic plug-in antenna is electrically isolated on one of the beam body of the base antenna, in particular the front side of the beam body of the base antenna, wherein the electrical lines for the additional antenna system arranged in particular in the length range of the isolated attachment, for the frequency ranges the base antenna damping components are arranged.
  • the damping components are ferrites arranged on the lines, which in particular completely surround the line in particular.
  • FIG. 1 shows schematically an embodiment of an antenna system according to the invention for use as a submarine antenna system.
  • This embodiment consists essentially of three, applied to an electrically conductive antenna support 1, rotationally symmetrical, preferably metallic dipole emitters 3a, 3b, 3b for operation in two different frequency ranges.
  • further monopole and helix antennas 23 are provided for operation in further frequency ranges on the dipole radiators 3c located on the distal end of the carrier 1.
  • the two frequency ranges covered by the three dipole radiators 3a, 3b, 3c in the present exemplary embodiment are the 116-164 MHz VHF band and the 220-400 MHz UHF band (UHF).
  • the radiator 3a located at the proximal end of the antenna carrier 1 is assigned the frequency range UHF to the frequency range VHF and the radiator 3c located at the distal end of the antenna carrier 1.
  • the radiator 3b lying between these two radiators 3a, 3c is used by both frequency ranges. Direct contact between the individual radiators 3a and 3b or 3b and 3c is prevented by means of electrically insulating elements 7 and 11, respectively.
  • electrically insulating elements 7 and 11 As a material for these elements, which provide at the same time for a mechanical stability of the antenna structure, preferably ceramic or plastic is used.
  • the preferably further mounted antennas 23 can, for example, the operation in the frequency range for IFF, in which a reception frequency of 1030th MHz and a transmission frequency of 1090 MHz is used, in the Global Positioning System frequency range, with reception frequencies of 1575.42 MHz and 1227.6 MHz, as well as in the frequency range for the two satellite services Inmarsat RX and Inmarsat TX (1530-1545 MHz resp 1626.5-1646.5 MHz).
  • the antenna support 1 is inserted and fixed with its turned to the hull of the submarine end in a mounted on a to be attached to the hull of the submarine mounting plate 22 holding part 33 made of plastic.
  • the additional antennas 23 are mounted on a plate 24, which is fixed by means of electrically insulating spacers 25 made of ceramic at the opening of the substantially cup-shaped radiator 3c.
  • FIG. 2 shows a section through the proximal end of the antenna system.
  • the mounting plate 22 to be fastened to the hull of the submarine has a plurality of electrical connections 32, by means of which the various antenna components can be connected to the control system not shown here.
  • the connections 32 are connected on the antenna side to various supply lines 26, 27, 28, preferably in the form of coaxial cables.
  • a UHF feed line 26, a VHF feed line 27 and a plurality of feed lines 28 are provided for the further supplementary antennas 23.
  • the UHF feed line 26 can be guided via a loop 29, while the VHF feed line 27 to the insulating holding part 33rd is wound.
  • the antenna carrier 1 in the present case has the form of a tube with an inner space 2, an inner diameter DM1 and an outer diameter DM2.
  • the UHF feed line 26 and the feed lines 28 for the other additional antennas 23 are through corresponding holes in the holding part 33 and from there into the interior 2 of the antenna carrier 1 out.
  • the VHF feed line 27 extends outside parallel to the antenna carrier. 1
  • All feed lines 26, 27, 28 are furthermore guided for damping and decoupling by a ferrite 21 which is attached to the holding part 33.
  • the radiator 3a attached to the proximal end of the antenna carrier 1 has in the region of its proximal end essentially the shape of a hollow cylinder 3a 'which is open on the proximal side.
  • This hollow cylinder 3a ' merges on its distal side into a hollow truncated cone 3a "which tapers towards the distal end and which in turn is closed off at its distal end by a cover plate 3a' '' which guided the antenna support 1 backlash and at the antenna support 1 is electrically connected to the radiator 3a.
  • the inner conductor of the coaxial cable of the VHF feed line 27 is electrically connected to the common radiator 3b at the first VHF feed point 12. The location of this first VHF feed point 12 on the common radiator 3b will be described below with reference to FIG.
  • the outer conductor of the coaxial cable of the VHF feed line 27 is electrically conductively connected to the outside of the antenna carrier 1 in a region located inside the conical radiator 3a and thus forms the second VHF feed point 13 for the antenna component to be operated in the VHF range.
  • the antenna carrier 1 which is closed off at its distal end with a cover 34, is electrically conductive with the distal end 5 near this distal end a first tube 4 connected.
  • the first tube 4 in this case has an inner diameter D1 and an outer diameter D2.
  • the proximal end 6 of the first tube 4 is mechanically supported by an insulating element 7, but not electrically connected to the antenna support 1.
  • the first VHF feed point 12 and the second VHF feed point 13 are electrically conductively connected to each other via the inner surface 15 of the first tube 4 and the outer surface 14 of the antenna carrier 1.
  • the exact position of the two feed points 12, 13 and thereby the electrical length between the two points 12, 13, ie the length of the VHF short-circuit line, is here chosen such that the high-resistance resonance of the short-circuit line in the middle of the band used VHF frequency range, ie at about 132 MHz, whereby an electrical decoupling of the two radiators 3a, 3b is achieved.
  • the characteristic impedance of the VHF short-circuit line is determined here by the ratio of the inner diameter D1 of the first tube 4 to the outer diameter DM2 of the antenna carrier 1. This ratio D1 / DM2 is chosen so that the impedance of the line at the frequency limits is high against 50 ohms. In this way, the impedance of the VHF-operated antenna component is prevented from being adversely affected by the impedance of the parallel-connected VHF short-circuit line.
  • a second tube 8 is arranged in the form of a cylindrical hollow body.
  • This hollow cylinder body 8 is formed by a corresponding inner tube 8 'and a corresponding outer tube 8 ", which are electrically conductively connected to each other at their ends by a preferably metallic disc 20, and has an inner diameter D3 and an outer diameter D4.
  • the cylindrical hollow body 8 is connected at its proximal end 9 in an electrically conductive manner to the proximal end 6 of the first tube 4.
  • the distal end 10 of the cylinder hollow body 8 is mechanically assisting, but not electrically connected to the first tube 4 by an insulating member 11.
  • the UHF feed line 26 is returned to the outside of the first tube 4 in the insulating member 11.
  • the inner conductor of the coaxial cable of the UHF feed line 26 is electrically conductively connected to the common radiator 3b at the first UHF feed point 16.
  • the outer conductor of the coaxial cable of the UHF feed line 26 is electrically conductively connected to the outside of the antenna carrier 1 in a region located within the radiator 3c and thus forms the second UHF feed point 17 for the antenna component to be operated in the UHF range.
  • the first UHF feed point 16 and the second UHF feed point 17 via the inner surface 19 of the cylinder hollow body 8 and the outer surface 18 of the first tube 4 are electrically conductively connected to each other.
  • the exact position of the two feed points 16, 17 and thereby the electrical length between the two points 16, 17, ie the length of the UHF short-circuit line, is chosen such that the high-resistance resonance of the short-circuit line in the middle of the band of the UHF frequency range used, ie at about 310 MHz, whereby an electrical decoupling of the two radiators 3b, 3c is achieved.
  • the characteristic impedance of the UHF short-circuit line is determined here by the ratio of the inner diameter D3 of the hollow cylinder body 8 to the outer diameter D2 of the first tube 4. This ratio D3 / D2 is chosen so that the impedance of the line at the frequency limits is high against 50 ohms. In this way it is prevented that the impedance of the antenna component operated in the UHF range is negatively influenced by the impedance of the parallel-connected UHF short-circuit line.
  • the outer diameter D4 of the cylinder hollow body 8 is in this case dimensioned such that impedance mismatches between the antenna and the short-circuit lines are largely compensated.
  • the radiator 3c has essentially the shape of a hollow truncated cone, which tapers in the proximal direction.
  • the radiator 3c is electrically connected to the first tube 4 near its distal end.
  • An insulating element 11 creates a mechanical, but electrically non-conductive, connection between the radiator 3 c and the cylinder hollow body 8.
  • the radiator 3 c has a region 35 of greater wall thickness at its distal end, in which fastening means 36 are provided for fastening a plate 24. On the plate 24 more antennas 23 are mounted.
  • the plate 24 is electrically insulated from the emitter 3c by means of ceramic spacers 25 and the feeders 28 are electrically separated by means of ferrite beads 30 for the frequency bands of the base antennas.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)
  • Burglar Alarm Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Aerials With Secondary Devices (AREA)

Claims (22)

  1. Antenne pour un service, en particulier pour l'envoi et la réception dans au moins deux bandes de fréquences différentes comprenant plusieurs émetteurs (3a, 3b,...) ainsi qu'au moins un support (1),
    au moins trois émetteurs (3a, 3b, 3c,...) étant fixés sur un support commun (1) et parmi les émetteurs (3a, 3b,...) fixés sur le support commun (1) au moins un émetteur utilisé en commun (3b) pouvant servir respectivement d'émetteur dipolaire dans une plage de fréquences différentes
    caractérisée en ce que
    l'émetteur utilisé en commun (3b) présente des points d'alimentation (12, 16) pour au moins deux plages différentes de fréquences, en ce que dans le cas de l'émetteur (3b) utilisé en commun pour le désaccouplement des émetteurs (3a, 3b,...) coopérant ensemble respectivement en tant que dipôle, plusieurs conducteurs électriques (1, 4, 8), lesquels sont court-circuités par paire différemment à respectivement une extrémité avant concentriquement les uns par rapport aux autres, forment au moins deux lignes en cours circuit dont les longueurs sont sélectionnées de sorte qu'elles sont, pour au moins l'une des deux plages de fréquences différentes, d'impédance ohmique élevée.
  2. Antenne selon la revendication 1, caractérisée en ce que dans le cas des conducteurs électriques concentriques entre eux (1, 4, 8), il s'agit de pièces tubulaires.
  3. Antenne selon la revendication 1 ou 2, caractérisée en ce que les faces avant opposées aux faces avant court-circuitées entre les pièces tubulaires respectives (1, 4, 8) sont électriquement isolées les unes des autres.
  4. Antenne selon l'une des revendications précédentes, caractérisée en ce que les émetteurs (3a. 3b, 3c) sont disposés sur le support commun (1) dans le sens longitudinal les uns derrière les autres.
  5. Antenne selon l'une des revendications précédentes, caractérisée en ce que l'antenne présente exactement trois émetteurs (3a, 3b, ...) fixés sur un support d'antenne commun (1); dont exactement un émetteur utilisé en commun (3b) présente des points d'alimentation (12, 16) pour deux plages de fréquences différentes.
  6. Antenne selon la revendication 5, caractérisée en ce que pour les deux plages de fréquences de l'émetteur utilisé en commun (3b), il s'agit d'une bande VHF comprise entre 80 et 200 MHZ, en particulier 116 et 164 MHz et d'une bande UHF comprise entre 180 et 440 MHz, en particulier 220 à 400 MHz.
  7. Antenne selon l'une des revendications précédentes, caractérisée en ce que le support commun (1) est tubulaire.
  8. Antenne selon la revendication 7, caractérisée en ce que l'une des lignes d'alimentation (26, 27, 28) du système d'antennes s'étend sur au moins une section partielle à l'intérieur du support tubulaire commun (1).
  9. Antenne selon l'une des revendications précédentes, caractérisée en ce que chaque point d'alimentation (12, 16) de chaque plage de fréquences se trouve sur l'une des faces frontales de l'émetteur utilisé en commun (3b).
  10. Antenne selon l'une des revendications précédentes, caractérisée en ce que la pièce tubulaire la plus à l'intérieur de l'émetteur (3b) utilisé en commun est constituée par le support tubulaire (1) et, entre le support (1) et la première pièce tubulaire (4), il est formé une première ligne de court-circuit, qui est d'impédance ohmique élevée pour une première plage de fréquences, et entre la première pièce tubulaire (4) et la seconde pièce tubulaire (8), une seconde ligne de court-circuit qui est d'impédance ohmique élevée pour une seconde plage de fréquences.
  11. Antenne selon l'une des revendications précédentes, caractérisée en ce que la seconde pièce tubulaire (8) présente la forme d'un corps creux cylindrique fermé sur les faces avant (20) et constitué de deux pièces tubulaires (8', 8").
  12. Antenne selon l'une des revendications précédentes, caractérisée en ce que le support (1) et les émetteurs (3a, 3b, 3c) se composent d'un matériau électriquement conducteur de préférence un métal, en ce que les émetteurs (3a, 3b, 3c) sont en contact électriquement conducteur avec le support (1) mais pas directement électriquement conducteur, mais sont reliés entre eux par des composants électriquement isolants (7, 11), de préférence des espaceurs.
  13. Antenne selon l'une des revendications précédentes, caractérisée en ce que le diamètre externe (D4) de la seconde pièce tubulaire (8) est compris entre 130 et 145 mm, de préférence entre 135 et 140, et particulièrement préféré entre 136,5 et 137,5 mm.
  14. Antenne selon l'une des revendications précédentes, caractérisée en ce que le rapport (DM2/D1) entre le diamètre interne (D1) de la première pièce tubulaire et le diamètre externe (DM2) du support d'antenne (1) est compris entre 2,0 et 2,5, de préférence entre 2,1 et 2,3 et particulièrement préféré entre 2,15 et 2,25.
  15. Antenne selon l'une des revendications précédentes, caractérisée en ce que le rapport (D3/D2) du diamètre interne (D3) de la seconde pièce tubulaire (8) et le diamètre externe (D2) de la première pièce tubulaire (4) est compris entre 1,3 et 1,8; de préférence entre 1,45 et 1,65 et en particulier entre 1,5 et 1,6.
  16. Antenne selon l'une des revendications précédentes, caractérisée en ce que l'adaptation électrique en longueur d'une des lignes d'alimentation (26, 27, 28) s'effectue par une boucle (29) située à proximité sur la plaque de montage (22) du système d'antennes.
  17. Antenne selon l'une des revendications précédentes, caractérisée en ce qu'au moins l'une des lignes d'alimentation (26, 27, 28) est guidée pour le désaccouplement par un élément d'affaiblissement (21) de préférence un anneau en ferrite.
  18. Antenne selon l'une des revendications précédentes,
    caractérisée en ce que
    - l'antenne présente sur l'extrémité libre sur la face frontale d'une antenne superposée un système d'antennes supplémentaire (23),
    - le système d'antennes supplémentaire (23) est isolé électriquement sur l'un des corps d'émission de l'antenne de base, en particulier en face frontale sur le corps émetteur (3c) de l'antenne de base et
    - les lignes électriques (28) sont disposées pour le système d'antennes supplémentaire (23) au moyen en particulier de composants (30) disposés dans la zone de longueur de la fixation isolée et affaiblissant les plages de fréquences de l'antenne de base.
  19. Antenne selon la revendication 18, caractérisée en ce que les composants affiablisseurs (30) sont des ferrites disposés sur les lignes (28), qui entourent en particulier la ligne respectivement en entier.
  20. Antenne selon la revendication 18 ou 19, caractérisée en ce que le système d'antennes supplémentaire (23) est conçu pour le fonctionnement sur au moins l'une des plages de fréquences :
    - plage de fréquences pour IFFF ave fréquence de réception de 1030 MHz, fréquence d'émission de 1090 MHz,
    - plages de fréquences du système de positionnement globale (GPS) avec des fréquences réceptrices de 1575,42 MHz et de 1227,6 MHZ
    - plages de fréquence pour le service satellite Inmarsat RX, comprises entre 1530 et 1545 MHz
    - plages de fréquences pour le service satellite Inmarsat TX, comprises entre 1626,5 et 1646,5 M>HZ.
  21. Antenne selon l'une des revendications précédentes, caractérisée en ce que dans le cas de l'antenne de base, le nombre des émetteurs (3a, 3b,...) est supérieur d'au moins 1 au nombre des plages de fréquence.
  22. Antenne selon l'une des revendications précédentes, caractérisée en ce que l'émetteur utilisé en commun (3b) possède une forme de base symétrique en rotation.
EP03019762A 2002-08-29 2003-08-29 Système d'antenne pour plusieurs bandes de fréquences Expired - Lifetime EP1401051B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200330567T SI1401051T1 (sl) 2002-08-29 2003-08-29 Antenski sistem za vec frekvencnih podrocij

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10239874 2002-08-29
DE10239874A DE10239874B3 (de) 2002-08-29 2002-08-29 Antennensystem für mehrere Frequenzbereiche

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EP1401051A1 EP1401051A1 (fr) 2004-03-24
EP1401051B1 true EP1401051B1 (fr) 2006-10-18

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EP (1) EP1401051B1 (fr)
AT (1) ATE343230T1 (fr)
DE (2) DE10239874B3 (fr)
DK (1) DK1401051T3 (fr)
SI (1) SI1401051T1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7755553B2 (en) * 2007-08-20 2010-07-13 Harris Corporation Multiband antenna system for body-worn and dismount applications
DE202008005765U1 (de) 2008-04-25 2008-07-03 Aeromaritime Systembau Gmbh Antennenmodul
DE102011107417B4 (de) 2011-07-15 2021-11-18 Aeromaritime Systembau Gmbh Antennenmodul
DE102014103669A1 (de) * 2014-03-18 2015-09-24 Thyssenkrupp Ag Vorrichtung zum Senden- und/oder Empfangen von elektromagnetischen Wellen
DE102020210513A1 (de) 2020-08-19 2022-02-24 Hagenuk Marinekommunikation Gmbh Antenne

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821709A (en) * 1952-03-21 1958-01-28 Fucci Salvatore Antennas
FR2300429A1 (fr) * 1975-02-07 1976-09-03 Thomson Csf Groupement
DE2629502A1 (de) * 1976-06-30 1978-01-05 Siemens Ag Mehrfachrundstrahlantenne
US5248988A (en) * 1989-12-12 1993-09-28 Nippon Antenna Co., Ltd. Antenna used for a plurality of frequencies in common
JPH0637542A (ja) * 1992-07-10 1994-02-10 Sony Corp 携帯電話機用アンテナ装置
JPH08265041A (ja) * 1995-03-28 1996-10-11 Casio Comput Co Ltd アンテナ装置
US5949383A (en) * 1997-10-20 1999-09-07 Ericsson Inc. Compact antenna structures including baluns
US5977928A (en) * 1998-05-29 1999-11-02 Telefonaktiebolaget Lm Ericsson High efficiency, multi-band antenna for a radio communication device

Also Published As

Publication number Publication date
EP1401051A1 (fr) 2004-03-24
DE50305406D1 (de) 2006-11-30
DE10239874B3 (de) 2004-04-29
ATE343230T1 (de) 2006-11-15
DK1401051T3 (da) 2007-02-19
SI1401051T1 (sl) 2007-04-30

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