EP2757632B1 - Multireflektorantennenendgerät - Google Patents

Multireflektorantennenendgerät Download PDF

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Publication number
EP2757632B1
EP2757632B1 EP13425011.7A EP13425011A EP2757632B1 EP 2757632 B1 EP2757632 B1 EP 2757632B1 EP 13425011 A EP13425011 A EP 13425011A EP 2757632 B1 EP2757632 B1 EP 2757632B1
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EP
European Patent Office
Prior art keywords
reflector
antenna terminal
support base
radio frequency
subreflector
Prior art date
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Application number
EP13425011.7A
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English (en)
French (fr)
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EP2757632A1 (de
Inventor
Giancarlo Bellaveglia
Raimondo Lo Forti
Fabio Maggio
Luca Marcellini
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.)
Airbus Italia SpA
Original Assignee
Space Engineering SpA
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Filing date
Publication date
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Priority to EP13425011.7A priority Critical patent/EP2757632B1/de
Priority to ES13425011T priority patent/ES2794091T3/es
Priority to DK13425011.7T priority patent/DK2757632T3/da
Publication of EP2757632A1 publication Critical patent/EP2757632A1/de
Application granted granted Critical
Publication of EP2757632B1 publication Critical patent/EP2757632B1/de
Priority to CY20201100375T priority patent/CY1122852T1/el
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/17—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source comprising two or more radiating elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/18—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces
    • H01Q19/19—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface
    • H01Q19/191—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface wherein the primary active element uses one or more deflecting surfaces, e.g. beam waveguide feeds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
    • H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
    • H01Q3/16—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device
    • H01Q3/20—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device wherein the primary active element is fixed and the reflecting device is movable

Definitions

  • the present disclosure relates to the technical field of telecommunications and in particular to a multi reflector antenna terminal.
  • US2006/262022 discloses a multi-reflector antenna terminal according to the preamble of claim 1, having only two reflectors and being therefore a dual reflector antenna.
  • WO 2008/015647 A2 discloses a dual reflector mechanical pointing low profile antenna particularly, but not only, suitable to be employed on high speed vehicles such as trains and aircrafts.
  • Said low profile antenna comprises a main reflector, a sub-reflector and a feed which are mounted on a rotating mechanical support.
  • the object of the present disclosure is to make available an antenna terminal that, with respect to the prior art antenna disclosed in WO 2008/015647 A2 , can join one or more of the following additional functionalities:
  • Said multi reflector antenna terminal 100 comprises a reflecting system 4,5,6 including three reflectors and in particular a main reflector 4, a secondary reflector 5 (or subreflector 5) and a third reflector 6.
  • the third reflector 6 will be also indicated as "rotating mirror 6".
  • the multi reflector antenna terminal 100 is particularly, but not only, suitable for being employed in satellite telecommunications, direct TV broadcasting and wideband multimedia applications.
  • said antenna terminal 100 is a part of an outdoor unit, in turn located on a moving vehicle such as a train, an aircraft, a watercraft or a terrestrial motor vehicle.
  • the reduced dimensions of the antenna terminal 100 facilitate its use in all situations of satellite and terrestrial connections from vehicles in motion.
  • the antenna terminal 100 is capable of transmitting and/or receiving even under critical linking conditions with a satellite and/or a base station.
  • the multi reflector antenna terminal 100 is a "low profile" antenna terminal, i.e. an antenna terminal having horizontal dimensions greater than its vertical dimensions.
  • the antenna terminal 100 is a terminal adapted for transmitting uplink electromagnetic signals to one or more satellites and/or for receiving downlink electromagnetic signals to one or more satellites.
  • the antenna terminal 100 comprises a first support base 1 and a second support base 2 which is rotatably coupled to the first support base 1 in order to be rotated around a first rotation axis A with respect to the support base 1.
  • the first rotation axis A is a vertical or substantially vertical axis.
  • the first 1 and second 2 support bases are preferably substantially plate-shaped and in the following description they will be respectively indicated, without for this reason introducing any limitation, as “fixed plate 1" and “rotating plate 2".
  • the antenna terminal 100 comprises a motor 34, also indicated as azimuth motor, which is adapted to rotate the rotating plate 2 around the first rotation axis A for scanning the electromagnetic beam in the azimuth plane.
  • a motor 34 also indicated as azimuth motor, which is adapted to rotate the rotating plate 2 around the first rotation axis A for scanning the electromagnetic beam in the azimuth plane.
  • the reflecting system 4,5,6 is mechanically coupled, for example rotatably hinged, to the rotating plate 2 in order to be rotated around a second rotation axis B with respect to the rotating plate 2. Accordingly, the rotating plate 2 supports the reflecting system 4,5,6 and in general also the remaining devices and components configured for receiving and/or transmitting electromagnetic signals.
  • the second rotating axis B is independent from the first rotating axis A.
  • the main reflector 4 is rotatably coupled to the rotating plate 2, in the example shown by means of two supporting elements 7 which are fixed to the rotating plate 2.
  • the main reflector 4 is rotatably hinged to the rotating plate 2.
  • the antenna terminal 100 also comprises a motor 8, for example an electric rotating motor 8, which is coupled to the main reflector 4 and that is adapted to be controlled in order to rotate the main reflector 4 around the rotation axis B.
  • the axis B is a horizontal or substantially horizontal axis.
  • the motor 8 is fixed to one of the two supporting elements 7.
  • the rotating mirror 6 is mechanically coupled to the main reflector 4, and supported by such reflector 4, and is adapted to be rotated around a third rotation axis C with respect the main reflector 4.
  • the rotating mirror 6 is rotatably hinged to the main reflector 4 on the opposite side of the latter with respect to the side of the main reflector 4 that is faced to the secondary mirror 5.
  • the sequence of the reflectors along a propagation path of the received and/or transmitted electromagnetic signals is the following: main reflector 4, subreflector 5, third reflector 6 and/or vice versa.
  • the antenna terminal 100 comprises a motor (not shown in the figures), for example a rotating electric motor, which is adapted to be controlled in order to rotate the rotating mirror 6 around the rotation axis C.
  • a motor for example a rotating electric motor, which is adapted to be controlled in order to rotate the rotating mirror 6 around the rotation axis C.
  • the rotating mirror 6 is pivotally hinged to the main reflector 4 by means of two brackets and said rotating electric motor (not shown in the figures) is fixed to one of said brackets and has a shaft connected to the rotating mirror.
  • rotating mirror 6 can be also moved in order to translate with respect to the main reflector 4.
  • the main reflector 4 includes a hole or a notch F so as to allow the transmission of the electromagnetic signal between the rotating mirror 6 and the subreflector 5.
  • the hole or notch F is placed in the shadow zone projected by the subreflector 5 on the main reflector 4 along the axis Z of figure 8 , so as to minimize the efficiency loss of the antenna terminal 100.
  • the axis Z in the operation is generally intended to be aligned with the main direction of propagation of the received and/or transmitted electromagnetic signal.
  • the secondary mirror 5 is fixedly mounted to the main reflector 4.
  • the secondary mirror 5 is supported by at least one arm fixed to the main reflector 4.
  • the subreflector 5 is fixed by means of four arms to the main reflector 4.
  • the whole reflecting system 4,5,6 due to the connection arrangement among the reflectors and between the main reflector 4 and the rotating plate 2, following a rotation of the main reflector 4 around the rotation axis B is adapted to perform the scanning of the electromagnetic beam in the elevation plane.
  • the subreflector 5 and the rotating mirror 5 are adapted to be rotated jointly with the main reflector 4 during its rotation around the second rotation axis B.
  • the rotating mirror 6 can be provided with one or more reflecting surfaces.
  • the rotating mirror 6 is provided with two opposite reflecting surfaces and has preferably the general shape of a dish.
  • the antenna terminal 100 comprises at least one radio frequency chain 9, 18 mounted on the rotating plate 2 and adapted to cooperate with the reflecting system 4,5,6 for the transmission and/or the reception of electromagnetic signals.
  • the at least one radio frequency chain 9, 18 is mechanically coupled to the rotating plate 2 and is adapted to be stationary with respect the support base 2 in the rotation of the reflecting system around the second axis B.
  • stationary means that the radio frequency chain 9, 18 does not rotate around the rotation axis B of the reflecting system 4,5,6. Thanks to this embodiment, there is no use of RF rotary joints and this advantageously reduces the gain losses.
  • the radio frequency chain 9 comprises an illuminator 10, a polarization rotator 11, an orthomode transducer (OMT) 12, a filter 13, a low noise frequency down-converter and a low noise amplifier representing together a low noise block (LNB) 14, a waveguide to coaxial cable adapter 15.
  • the antenna terminal 100 comprises:
  • the antenna terminal 100 comprises an amplifier and an high frequency converter 27, or block up converter (BUC) 27, coupled to the radiofrequency chain 9 for the signal transmission through the radiofrequency chain 9.
  • BUC block up converter
  • the second radio frequency chain 18 may similarly comprise an illuminator 19, a polarization rotator 20, an orthomode transducer (OMT) 21, a filter 22, a low noise frequency down-converter and a low noise amplifier representing together a low noise block (LNB) 23, a waveguide to coaxial cable adapter 24.
  • OMT orthomode transducer
  • LNB low noise block
  • the antenna terminal 100 comprises:
  • the antenna terminal 100 comprises an amplifier and an high frequency converter 28, or block up converter (BUC) 28, coupled to the radiofrequency chain 18 for the signal transmission through the radiofrequency chain 18.
  • BUC block up converter
  • the illuminator(s) 10, 19 is (are) designed so as to have an irradiation diagram having a very high circular symmetry. In this way, since the illumination of the rotating mirror 6 does not change it is possible to avoid gain losses when changing the elevation angle.
  • the rotating mirror 6 has the function of deviating of about 90 degrees the transmitted and/or received electromagnetic signal for redirecting it towards the secondary mirror 5 and/or the illuminators 10,19.
  • only one radio frequency chain is provided, for example the radio frequency chain 9, and the rotating mirror 6 is preferably provided with only one reflecting surface.
  • the rotating mirror 6 can be rotated around the rotation axis C for example between a working angular position and a rest angular position, for mechanically turning-on and switching-off the antenna terminal 100 respectively.
  • the rotating mirror 6 In the working position the rotating mirror 6 is oriented in such a way that a reflecting surface of the mirror 6 is oriented for optimizing the transmission of the electromagnetic signal between the radio frequency chain 9 and the secondary mirror 5.
  • the rotating mirror 6 In the rest position the rotating mirror 6 is oriented in such a way that reflecting surface of the mirror 6 is oriented for minimizing the transmission of the electromagnetic signal between the radio frequency chain 9 and the secondary mirror.
  • the rotating mirror 6 is provided with a surface, preferably an absorbing surface, opposite to the reflecting surface and in the rest position such surface can face the secondary mirror 5 or the input/output port, or illuminator 10, of the radiofrequency chain 9.
  • This feature can be used as a redundancy of the radiation emission switch off, in case of failure of the primary switch off equipment, consisting of a reference signal at the input of BUCs 27 and 28.
  • the antenna terminal 100 is provided with two radio frequency chains 9, 18 and the rotating mirror 6 is adapted to be rotated around the axis C between two angular positions respectively for selectively enabling the operation of one 9 or the other 18 radiofrequency chain.
  • the antenna terminal 100 according to the second example is such to guarantee the continuity of operation of the antenna terminal 100 even in the case in which there is the failure of one of the two radio frequency chains.
  • the rotating mirror 6 is interposed between said chains 9, 18, a rotation of the mirror 6 of 90 degrees may be operated in order to selectively enable the operation of one 9 or the other 18 radiofrequency chain.
  • the rotating mirror 6 can be provided with only one reflecting surface.
  • the antenna terminal 100 may be provided with two radio frequency chains 9, 18 and the rotating mirror 6 can be rotated among two angular positions respectively for selectively enabling the operation of one or the other radiofrequency chain 9 or 18. If the two radio frequency chains 9, 18 are configured to operate on different frequency bands, the antenna terminal 100 according to the third example can selectively operate on different frequency bands, being therefore a dual-band antenna terminal 100.
  • one of the two radio frequency chains 9, 18 can be designed to operate on the Ka band and the other radio frequency chain can be designed to operate on the Ku band.
  • the rotating mirror 6 is provided with two reflecting surfaces, one of which is numerically optimized in its shape for the frequency band of one of the two frequency chain 9 and the other of which is independently numerically optimized in its shape for the frequency band of the other radio frequency chain 18. If the two radio frequency chains 9,18 are aligned along a same axis and the rotating mirror 6 is interposed between said chains 9, 18, a rotation of the mirror 6 of 90 degrees may be operated in order to selectively enable the operation of one 9 or the other 18 radiofrequency chain.
  • the rotating mirror 6 can also be rotated to advantageously allow a fine tuning of the pointing direction of the reflecting system 4,5,6 and/or to compensate possible degradation effects due to the ageing of the antenna terminal 100.
  • the hole or notch F is placed on the lower part of the main reflector 4, so as to be relatively close to the rotating plate 2. Accordingly, also the at least one radio frequency chain 9,18 is placed close to the rotating plate 2 by means of the brackets 16, 25.
  • This expedient advantageously reduces the mechanical stress of the system during the pointing and tracking of the antenna terminal 100. This effect is further improved when also the rotation axis B of the main reflector 4 is relatively close to the rotating plate 2, for example at a maximum distance of 10 cm from the rotating plate 2.
  • one illuminator 10,19 is such to transmit said signal, in the form of a spherical wave, towards the rotating mirror 6 which reflects said signal towards the secondary mirror 5 in such a way as to avoid significant unbalances in the illumination intensity of the border of said secondary mirror 5.
  • the latter transforms the spherical, or pseudo-spherical wavefront, coming from the rotating mirror 6 in an astigmatic wavefront so making unequal the curvature rays of the reflected wavefront with respect to the principal planes XZ and YZ of figure 8 .
  • the wavefront coming from the subreflector 5 illuminates the main reflector 4.
  • the main reflector 4 is such to transform the astigmatic wavefront in a planar wavefront. Such wavefront may also be inclined with respect the axis Z, for reducing or eliminating a partial shade region introduced by the subreflector 5.
  • the design of the surfaces of the main reflector 4 and the subreflector 5 it is required to force the uniformity of the optical path for every possible ray emitted by the source of the electromagnetic signal according to the "stationary phase" principle. According to a preferred embodiment this is obtained by designing the reflecting surface of the main reflector 4 as a quartic surface, i.e.
  • the principal sections of the surfaces of the main reflector 5 and the subreflector 5 are conical sections.
  • the principal sections of the main reflector 4 are both parabolas but with different focal lengths, while the principal sections of the subreflector 5 are both hyperboles but with different focal lengths.
  • the antenna unit 100 is configured like a three-reflector beam waveguide antenna.
  • This expedient together with the shaping of the reflecting surfaces allows to design significantly compact mechanical pointing low profile antennas.
  • Said low profile antennas may also have an asymmetrical profile, that is to say that they may have a radiating aperture whose width is greater than the height, such as for example an elliptical, or a super-elliptical or a rectangular aperture.
  • the above combination of expedients allows to minimize the number of reflectors (the minimum number is three) in small and medium sized antennas, that is to say antenna having dimensions generally comprised in the range 30-100 wavelengths, without significantly impacting on the overall efficiency of the antenna.
  • the antenna unit 100 may be further provided with a tracking system comprising one or more of the following components: a low loss radio frequency connection 29, an antenna control unit 30 (ACU), an inertial measurement unit 31 (IMU), a GPS receiver 32, a narrow band receiver 35, a device for the extraction of the reference signal 36 to be tracked, a protection radome 33.
  • a tracking system comprising one or more of the following components: a low loss radio frequency connection 29, an antenna control unit 30 (ACU), an inertial measurement unit 31 (IMU), a GPS receiver 32, a narrow band receiver 35, a device for the extraction of the reference signal 36 to be tracked, a protection radome 33.
  • the antenna terminal 100 is such to fully attain the proposed objects, since it is capable to add one or more advanced functionalities to the prior art antennas.
  • the antenna unit may be designed so as to be very compact and may perform the elevation scanning moving only the reflecting system 4,5,6 and not the radio-frequency electronic components.
  • the at least one radio frequency chain 9,18 does not rotate together the reflecting system 4,5,6 around the rotation axis B, radio frequency joints are not required so it is possible to avoid gain losses.

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  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Claims (15)

  1. Multireflektorantennenstation (100), die folgende Merkmale aufweist:
    - eine Trägerbasis (2), die dazu angepasst ist, um eine erste Drehachse (A) gedreht zu werden;
    - ein reflektierendes System (4, 5, 6), das mechanisch mit der Trägerbasis (2) gekoppelt ist und dazu angepasst ist, um eine zweite Drehachse (B) in Bezug auf die Trägerbasis (2) gedreht zu werden, wobei die zweite Drehachse (B) unabhängig von der ersten Drehachse (A) ist;
    - zumindest eine Hochfrequenzkette (9, 18), die dazu angepasst ist, ein elektromagnetisches Signal durch das reflektierende System (4, 5, 6) zu empfangen und/oder auszusenden;
    wobei das reflektierende System (4, 5, 6) folgende Merkmale aufweist:
    - einen Hauptreflektor (4), der drehbar mit der Trägerbasis (2) gekoppelt ist und dazu angepasst ist, um die zweite Drehachse (B) in Bezug auf die Trägerbasis (2) gedreht zu werden;
    - einen Teilreflektor (5);
    dadurch gekennzeichnet, dass:
    - das reflektierende System (4, 5, 6) einen dritten Reflektor (6) aufweist, wobei der Teilreflektor (5) und der dritte Reflektor (6) mechanisch mit dem Hauptreflektor (4) gekoppelt sind und dazu angepasst sind, gemeinsam mit dem Hauptreflektor (4) bei dessen Drehung um die zweite Achse (B) gedreht zu werden, wobei der dritte Reflektor (6) dazu angepasst ist, um eine dritte Drehachse (C) in Bezug auf den Hauptreflektor (4) und den Teilreflektor (5) gedreht zu werden;
    - wobei die zumindest eine Hochfrequenzkette (9, 18) mechanisch mit der Trägerbasis (2) gekoppelt ist und dazu angepasst ist, stationär in Bezug auf die Trägerbasis (2) während der Drehung des reflektierenden Systems (4, 5, 6) um die zweite Achse (B) zu sein.
  2. Multireflektorantennenstation gemäß Anspruch 1, wobei die Sequenz der Reflektoren entlang eines Ausbreitungswegs des elektromagnetischen Signals wie folgt ist: Hauptreflektor (4), Teilreflektor (5), dritter Reflektor (6) oder umgekehrt.
  3. Multireflektorantennenstation (100) gemäß Anspruch 1 oder 2, wobei der dritte Reflektor (6) an dem Hauptreflektor (4) auf der gegenüberliegenden Seite des letztgenannten in Bezug auf die Seite des Hauptreflektors (4), die auf den Teilreflektor (5) zeigt, drehbar eingehängt ist.
  4. Multireflektorantennenstation (100) gemäß Anspruch 1, wobei die zumindest eine Hochfrequenzkette (9, 18) dazu angepasst ist, um eine weitere Drehachse (D, E) in Bezug auf die Trägerbasis (2) gedreht zu werden.
  5. Multireflektorantennenstation (100) gemäß einem vorhergehenden Ansprüche, wobei die zumindest eine Hochfrequenzkette eine erste (9) und eine zweite (18) Hochfrequenzkette aufweist, und wobei der dritte Reflektor (6) dazu angepasst ist, sich zwischen einer ersten Winkelposition und einer zweiten Winkelposition um die dritte Achse (C) zu drehen, um den Betrieb der ersten (9) beziehungsweise der zweiten (18) Hochfrequenzkette selektiv zu ermöglichen.
  6. Multireflektorantennenstation (100) gemäß Anspruch 5, wobei die erste Hochfrequenzkette (9) dazu ausgelegt ist, in einem ersten Frequenzband betrieben zu werden, und die zweite Hochfrequenzkette (18) dazu ausgelegt ist, in einem zweiten Frequenzband betrieben zu werden, das sich von dem ersten Frequenzband unterscheidet.
  7. Multireflektorantennenstation (100) gemäß Anspruch 6, wobei das erste Frequenzband das Ka-Band ist und das zweite Frequenzband das Ku-Band ist.
  8. Multireflektorantennenstation (100) gemäß Anspruch 6 oder 7, wobei der dritte Reflektor (6) eine erste sowie eine zweite reflektierende Oberfläche aufweist, die jeweils dazu angepasst sind, mit der ersten (9) und der zweiten (18) Frequenzkette zusammenzuwirken.
  9. Multireflektorantennenstation (100) gemäß Anspruch 8, wobei die Oberflächen gegenüberliegende Oberflächen sind.
  10. Multireflektorantennenstation (100) gemäß Anspruch 8 oder 9, wobei die Form der ersten reflektierenden Oberfläche numerisch für den Betrieb in dem ersten Frequenzband optimiert ist und die Form der zweiten Oberfläche unabhängig von der ersten Oberfläche numerisch für den Betrieb in dem zweiten Frequenzband optimiert ist.
  11. Multireflektorantennenstation (100) gemäß einem der vorhergehenden Ansprüche, wobei der Hauptreflektor eine Kerbe oder ein Loch (F) aufweist, um die Ausbreitung des elektromagnetischen Signals zwischen dem Teilreflektor (5) und dem dritten Reflektor (6) zu ermöglichen.
  12. Multireflektorantennenstation (100) gemäß Anspruch 11, wobei die Kerbe oder das Loch (F) auf einem Schattenbereich platziert ist, der von dem Teilreflektor (5) auf den Hauptreflektor (4) projiziert wird.
  13. Multireflektorantennenstation (100) gemäß Anspruch 11 oder 12, wobei die Kerbe oder das Loch (F) auf einem Abschnitt des Hauptreflektors (4) platziert ist, der relativ näher zu der Trägerbasis (2) liegt.
  14. Multireflektorantennenstation (100) gemäß einem der vorhergehenden Ansprüche, wobei die Antennenstation eine Dreireflektor-Periskop-Flachantennenstation ist.
  15. Multireflektorantennenstation (100) gemäß einem der vorhergehenden Ansprüche, wobei die Drehachsen (A, B, C, D, E) unabhängig voneinander sind.
EP13425011.7A 2013-01-18 2013-01-18 Multireflektorantennenendgerät Active EP2757632B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP13425011.7A EP2757632B1 (de) 2013-01-18 2013-01-18 Multireflektorantennenendgerät
ES13425011T ES2794091T3 (es) 2013-01-18 2013-01-18 Terminal de antena de múltiples reflectores
DK13425011.7T DK2757632T3 (da) 2013-01-18 2013-01-18 Multireflektorantenneterminal
CY20201100375T CY1122852T1 (el) 2013-01-18 2020-04-24 Τερματικο κεραιας πολλαπλων ανακλαστηρων

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Application Number Priority Date Filing Date Title
EP13425011.7A EP2757632B1 (de) 2013-01-18 2013-01-18 Multireflektorantennenendgerät

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EP2757632A1 EP2757632A1 (de) 2014-07-23
EP2757632B1 true EP2757632B1 (de) 2020-02-05

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CY (1) CY1122852T1 (de)
DK (1) DK2757632T3 (de)
ES (1) ES2794091T3 (de)

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CN210224277U (zh) * 2019-08-29 2020-03-31 深圳Tcl新技术有限公司 一种定向高增益天线及遥控设备

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DE2321613A1 (de) * 1973-04-28 1974-11-14 Rohde & Schwarz Umschaltvorrichtung fuer das erregersystem einer reflektorantenne
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ITRM20060418A1 (it) 2006-08-03 2008-02-04 Tes Teleinformatica E Sistemi Srl Antenna a doppio riflettore a basso profilo a puntamento meccanico

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DK2757632T3 (da) 2020-05-04
EP2757632A1 (de) 2014-07-23
CY1122852T1 (el) 2021-05-05
ES2794091T3 (es) 2020-11-17

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