EP3154128B1 - Kompakter multifrequenz-speisehornstrahler, strahlungsquelle und antenne, die einen solchen speisehornstrahler umfasst - Google Patents

Kompakter multifrequenz-speisehornstrahler, strahlungsquelle und antenne, die einen solchen speisehornstrahler umfasst Download PDF

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Publication number
EP3154128B1
EP3154128B1 EP16192643.1A EP16192643A EP3154128B1 EP 3154128 B1 EP3154128 B1 EP 3154128B1 EP 16192643 A EP16192643 A EP 16192643A EP 3154128 B1 EP3154128 B1 EP 3154128B1
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Prior art keywords
coaxial
axial
horn antenna
radiating
horn
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English (en)
French (fr)
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EP3154128A1 (de
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Paddy Perottino
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Thales SA
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Thales SA
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    • 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
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
    • H01Q5/55—Feeding or matching arrangements for broad-band or multi-band operation for horn or waveguide antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02—Waveguide horns
    • H01Q13/0208—Corrugated horns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • 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
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/35—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using two or more simultaneously fed points

Definitions

  • the present invention relates to a compact multifrequency radiating horn, a radiating source and an antenna comprising such a radiating horn. It applies to any type of antenna comprising a radiating horn illuminating a reflector in the context of applications of space or terrestrial antennas, as well in the field of telecommunications as in the field of observation instruments and sciences of Earth, such as the field of altimetry and radiometry.
  • the antennas terrestrial or on board satellites, are generally dedicated to a specific mission and are optimized for operation in one or more separate frequency bands, for example the two bands K and Ka or the two bands Ku and Ka.
  • Each antenna being associated with a dedicated signal processing assembly, the installation of the various antenna systems constitute a cumbersome, heavy and expensive payload, hardly compatible with the space available on board the satellites and penalizing the mass of the assembly. .
  • This horn makes it possible to obtain a frequency deviation on a bandwidth between 13.5 GHz and 36.56 GHz, corresponding to the three Ku, K, Ka bands, however, it does not allow operation at frequencies below 13.5 GHz and in particular in band C whose center frequency is equal to 6.6 GHz.
  • the document US 4258366 describes an antenna comprising a conical radiating horn provided with corrugations and fed simultaneously by several signals at different frequencies between 6 and 37 GHz.
  • the lowest frequency at 6.6 GHz is injected into the horn by side ports consisting of a pair of longitudinal slots located near the mouth of the horn, i.e. at the end of the horn having the most small diameter.
  • the two diametrically opposed slots are fed through an adapter and a tee power divider.
  • Frequencies greater than 6.6 GHz are injected by a circular section waveguide connected to the end of the smallest diameter horn, called the mouthpiece.
  • the diameter of the mouth of the horn must be of sufficient size, that is to say greater than or equal to 30 mm, to allow a propagation of the frequencies in band C.
  • the length of the horn and the size of the opening diameter of the horn must be sufficient to allow propagation of the C-band frequencies.
  • the opening diameter of the horn required for the propagation of the signals in the lowest frequency band, by example band C significantly penalizes the overall size of the horn, which makes this antenna solution too large to be embedded on a mini satellite or a satellite microphone.
  • the aim of the invention is to provide a multifrequency radiating horn which does not have the disadvantages of known radiating horns, operating in a very broad frequency spectrum covering several different frequency bands, such as, for example, four frequency bands C, Ku, K, Ka, the radiating horn being more compact than the known radiating horns.
  • Another object of the invention is to provide an antenna comprising such a radiating horn.
  • the invention relates to a multifrequency radiating horn adapted to propagate signals in a frequency spectrum comprising several different frequency bands B1,..., Bi,..., BN, i being between 1 and N, B1. being the lowest frequency band, Bi being at least one intermediate frequency band and BN the highest frequency band, the radiating horn having a rotationally symmetrical side wall about a longitudinal axis Z, an orifice of axial access, called the mouth, and a radiating opening opposite to the axial access orifice, the lateral wall delimiting an axial longitudinal duct connecting the axial access orifice and the radiating opening, the axial longitudinal duct having, in cross-section, an increasing diameter between the axial access opening and the radiating opening, the side wall having an inner surface consisting of a plurality of concentric annular corrugations, located in successive planes parallel to each other and perpendicular to the longitudinal axis Z, each corrugation being centered on the longitudinal axis Z.
  • the radiating horn also comprises four coaxial plungers diametrically opposed two by two, inserted into a dedicated specific corrugation of the lateral wall, perpendicular to the longitudinal axis Z, the four coaxial plungers being equi-angularly distributed in a plane perpendicular to the longitudinal axis Z and penetrating into the axial longitudinal duct of the radiating horn, each coaxial plunger being dedicated to the propagation of signals in the lowest frequency band B1 of the frequency spectrum considered.
  • each coaxial plunger may consist of a metal rod having an end secured to a metallic tip, in the form of a disc or truncated cone, the metal end being perpendicular to the metal rod, the metallic endpiece immersed in the axial longitudinal duct of the radiating horn.
  • the radiating horn may furthermore comprise four coaxial connectors respectively associated with the four coaxial plungers, each coaxial connector comprising a metal core and a base fixed on an outer surface of the lateral wall of the radiating horn, the metal rod of each coaxial plunger being respectively constituted by the metal core of the corresponding coaxial connector.
  • each coaxial connector may be connected to a coaxial filter dedicated to the adaptation of the corresponding coaxial plunger, in the lowest frequency band B1 of the frequency spectrum considered.
  • the lowest frequency band B1 may be the C band.
  • the radiating horn may comprise several sets of coaxial plungers inserted in different specific corrugations having different internal diameters, each set of coaxial plungers being dedicated to the propagation of signals in different frequency bands of the frequency spectrum considered.
  • the invention also relates to a radiating source comprising a radiating horn and further comprising an axial waveguide connected to the axial access port of the radiating horn, transverse ports coupled perpendicularly to said axial waveguide and an end port axial, the transverse ports being respectively dedicated to the propagation of the intermediate frequency bands and the axial end port being adapted to the propagation of the highest frequency band of the considered frequency spectrum, the axial waveguide having a cross section of decreasing size between the axial access port and the axial end port.
  • the source may comprise two transverse access ports respectively dedicated to two different intermediate frequency bands Ku and K.
  • the highest frequency band of the spectrum may be the Ka band.
  • the invention also relates to an antenna comprising a radiating horn and at least one reflector, the radiating horn illuminating the reflector.
  • the invention relates to a multifrequency radiating horn capable of propagating signals in a frequency spectrum comprising several different frequency bands B1, ..., Bi, ..., BN, i being between 1 and N, B1 being the band of the lowest frequencies, Bi being at least one intermediate frequency band and BN the highest frequency band.
  • the radiating horn 10 comprises a lateral wall 14 extending longitudinally, along a longitudinal axis Z, an axial access orifice 12, also called the mouth, and a radiating opening 13 opposite to the axial access orifice.
  • the side wall 14 is symmetrical of revolution about the longitudinal axis Z and defines an axial longitudinal duct 11 connecting the axial access opening 12 and the radiating aperture 13, the axial longitudinal duct 11 having, in cross section, an increasing diameter between the axial access opening and the radiating opening.
  • the side wall 14 has an inner surface consisting of a plurality of concentric annular corrugations located in successive planes parallel to each other and perpendicular to the longitudinal axis Z, each corrugation being centered on the longitudinal axis Z.
  • the radiating horn 10 further comprises four coaxial plungers 16, diametrically opposite in pairs, inserted perpendicularly to the longitudinal axis Z, through four respective cylindrical orifices 20 machined in a specific corrugation 17 of the lateral wall 14, the four orifices cylindrical allowing the passage of the soul of the coaxial divers.
  • the four coaxial plungers are respectively provided with coaxial adaptation filters 22 located outside the side wall 14 of the horn 10.
  • the four coaxial plungers 16 are equi-angularly distributed in a plane perpendicular to the longitudinal axis Z and penetrate in the conduit longitudinal axial 11 of the horn, each coaxial plunger 16 being dedicated to the propagation of signals in the lowest frequency bands of the operating frequency spectrum of the radiating horn, such as for example in the C band, between 5.25 GHz and 5.6 GHz.
  • the structure of the radiating horn 10 is thus perfectly symmetrical with respect to the longitudinal axis Z and the use of the four divers well angularly distributed, at 90 ° from each other, makes it possible to excite the fundamental propagation mode and to minimize the impact of unwanted higher order propagation modes.
  • the specific corrugation 17 is located closer to the radiating opening 13 of the radiating horn than to the opening of the radiator.
  • the internal diameter of the specific corrugation 17 has a value chosen so that propagation of the fundamental mode corresponding to the lowest frequency band B1 is possible.
  • each coaxial plunger 16 may consist of a metal rod 18 having an integral end of a metal tip 19, the metal tip 19 preferably being disc-shaped or conical-shaped disposed perpendicularly to the metal rod 18.
  • the metal rod 18 passes through a cylindrical orifice, perpendicular to the longitudinal axis Z, pierced in the specific corrugation 17 of the side wall 14, and enters the axial longitudinal duct 11 of the radiating horn 10.
  • the four divers coaxial 16 are intended to inject signals in the lower frequency band B1 into the radiating horn 10 so that they propagate towards the radiating aperture 13, and conversely, to take signals in the lowest frequency band B1 , originating from the radiating opening 13 and entering the radiating horn 10.
  • the sampling or injection of the lowest frequency band is carried out at a distance from the orifice d axial access through which pass the other higher frequency bands, and without passing through an intermediate closed cavity.
  • the sampling or the injection of the lowest frequency band B1 is carried out near the aperture diameter radiating 13 of the radiating horn. Knowing that the diameter of the radiating aperture of the radiant horn is much larger than the diameter of the axial access port, it is therefore not necessary to increase, significantly, the dimensions of the radiating horn to allow operation in the lowest frequency band B1, for example in the C band.
  • the radiating horn 10 may further comprise four coaxial connectors 21 respectively associated with the four coaxial plungers 16, each coaxial connector 21 having an inner metal core constituting the metal rod 18 of a coaxial plunger, a base 24 fixed on an outer surface of the side wall of the radiating horn and an inlet / outlet port 25, integral with the base 24 and opening outwardly of the radiating horn.
  • the metal rod 18 of each coaxial plunger 16 is then constituted respectively by the metal core of the corresponding coaxial connector 21, which is inserted inside the axial longitudinal conduit 11 of the radiating horn, through a cylindrical orifice arranged in the lateral wall 14 of the radiating horn and through specific specific corrugation 17.
  • the specific corrugation 17 is an annular ring having an internal diameter whose value is compatible with the propagation of the signals in the lowest frequency band B1.
  • B1 corresponds to the band C, between 5.25 GHz and 5.6 GHz
  • the internal diameter of the annular ring must be between 37 and 40 mm.
  • the annular ring may be located preferably close to the end of larger diameter of the radiating horn, that is to say near the radiating opening 13.
  • the dimensions of the coaxial plungers In order not to degrade the radiation of the radiating horn in the higher frequency bands than the band B1, the dimensions of the coaxial plungers must be reduced as much as possible, while remaining capable of propagating the B1 band signals.
  • the diameter of the metal tip 19 of the metal rod 18 of each coaxial plunger 16 may be between 4 mm and 5 mm.
  • each coaxial plunger 16 in the axial longitudinal duct 11 of the radiating horn results from a compromise: on the one hand, the coaxial plunger must penetrate to a depth sufficient high to be able to capture, or conversely inject, band signals B1 with sufficient energy, and secondly, the depth of penetration of each coaxial plunger should not be too high not to degrade the signals in the bands of higher frequencies.
  • the penetration depth of each coaxial plunger can be between 5 mm and 7 mm.
  • the radiating horn 10 is made in three distinct sections with symmetry of revolution about the longitudinal axis Z, the specific corrugation 17 through which the four coaxial plungers are inserted, being preferentially manufactured in an independent annular ring.
  • the coaxial plungers 16 are preferably inserted in the specific corrugation 17 before the introduction of their metallic tip 19.
  • each metal tip is then fixed respectively, preferably by brazing or by gluing. by a conductive glue, at the end of the rod of a coaxial plunger.
  • brazing is preferred.
  • the independent annular ring equipped with the four coaxial plungers constitutes an intermediate section of the radiating horn which is inserted between two end sections respectively containing, the smallest diameters of the radiating horn and the largest diameters of the radiating horn, the three sections. intermediate and ends are then assembled together by any type of known connecting means, for example by welding, or brazing, or by screw-nut connections.
  • the assembly consisting of a coaxial connector and a coaxial plunger forms a coaxial probe capable of exciting the horn radiator B1 band and the input / output port 25 of each coaxial connector is an access input / output signal for the B1 band signals propagated by the respective coaxial probes.
  • the type of vertical or horizontal linear polarization, or circular right or left, is determined by the orientation of the radiator horn and by the use of couplers connected at the output of the coaxial filters, such as, for example, a 3 dB / 90 coupler ° to create the left and right circular polarizations after summation of the signals taken from the axial longitudinal duct 11 of the radiating horn, or after division of the injected signals in the axial longitudinal duct 11 of the radiating horn, the summed or divided signals coming from coaxial plungers , two to two diametrically opposed.
  • couplers connected at the output of the coaxial filters such as, for example, a 3 dB / 90 coupler ° to create the left and right circular polarizations after summation of the signals taken from the axial longitudinal duct 11 of the radiating horn, or after division of the injected signals in the axial longitudinal duct 11 of the radiating horn, the summed or divided signals coming from coaxial plungers , two to
  • each coaxial plunger 16 may preferably be connected in series with a coaxial filter 22 dedicated to adapting the coaxial plunger corresponding to the coaxial strip.
  • a coaxial filter 22 dedicated to adapting the coaxial plunger corresponding to the coaxial strip.
  • B1 frequencies Each coaxial adaptation filter 22 is placed outside the lateral wall 14 of the radiating horn and is connected, directly by a coaxial bend (not shown) or by a coaxial cable 23, to the corresponding coaxial connector 21, as illustrated by FIG. example on Figures 3 and 4 .
  • FIG. example on Figures 3 and 4 To avoid overloading Figures 3 and 4 only two coaxial filters 22 are shown, but it is understood that each coaxial plunger is equipped with a dedicated coaxial filter and that there are therefore four coaxial filters respectively connected to the four coaxial plungers.
  • the four coaxial plungers being located inside the axial longitudinal duct 11 of the radiating horn through the specific corrugation 17, the B1 frequency band signals are directly injected, or sampled, inside the radiating horn, without passing through the axial access port 12 of the radiating horn.
  • This makes it possible to reduce the size of the radiating horn which corresponds to the size of a radiating horn operating in an intermediate frequency band Bi, immediately greater than the lowest frequency band B1 sampled or injected by the coaxial divers.
  • the band B1 is the C band
  • the congestion of the radiating horn is then 2.5 to 3 times lower compared to the size of a conventional radiating horn operating in the C band.
  • the diametrically opposed coaxial plungers 16 can then be respectively connected in pairs, by means of the respective coaxial filters, by a dedicated coupler, not shown, each coupler comprising a port called "port sum" dedicated to the propagation of signals in the B1 band considered.
  • the sum port of each coupler makes it possible to propagate or recover the signal of one and the same linear, horizontal or vertical polarization, according to the orientation given to the radiating horn.
  • the two linear polarizations carried respectively by the two couplers are perpendicular to each other.
  • the radiating horn 10 is coupled to an excitation assembly, called the exciter 30.
  • the assembly consisting of the radiating horn and the exciter, constitutes a multifrequency and multiport radiofrequency source.
  • the exciter 30 comprises an axial waveguide 31 of circular section, called the common port of the exciter, directly connected to the axial access port 12, in the extension of the axial longitudinal duct 11, an axial terminal port 32 coupled to the axial waveguide 31 by a dedicated transition 33, and transverse branches 34, 35 coupled to the axial waveguide 31 by orthomode transducers 36, 37 respectively dedicated to the propagation of the different intermediate frequency bands Bi no taken from the lateral wall 14 of the radiating horn 10.
  • the axial waveguide 31 comprises sections of decreasing dimensions between the axial access orifice 12 and the axial end port 32 able to propagate the most important frequency band. high, for example the Ka band between 31.3 GHz and 31.5 GHz.
  • the number of transverse branches is equal to the number of intermediate frequency bands Bi desired.
  • the axial waveguide comprises two lateral branches 34, 35, including filters dedicated to the adaptation of the respective operating frequency band, coupled perpendicular to said axial waveguide 31, and respectively provided with a transverse port 38, 39.
  • the two transverse ports 38, 39 may for example, be dedicated respectively to the propagation of Ku bands between 13.4 GHz and 13.75 GHz and K between 23.7 GHz and 23.9 GHz.
  • the different ports, terminal 32 and transverse 38, 39 are conventional rectangular ports.
  • Their respective orientation associated with the orientation of the radiofrequency source provided with a radiating horn 10 and an exciter 30 and mounted in an antenna 40 determines the type of linear polarization, horizontal or vertical, propagated through the radiating horn.
  • Each port, transverse and terminal, coupled to the axial waveguide may be associated with a filter whose presence is optional but which participates in the adaptation of said port to a respective frequency band, for example Ku, K, or Ka.
  • a filter whose presence is optional but which participates in the adaptation of said port to a respective frequency band, for example Ku, K, or Ka.
  • the multifrequency radiating horn equipped with the four coaxial plungers according to the invention and an exciter as described above, is particularly compact and can be used as a primary source in any type of antenna comprising at least one reflector as represented by example on the figure 6 .
  • An antenna 40 comprising a reflector 41 illuminated by the radiofrequency source provided with a radiating horn 10 and an exciter 30 according to the invention can for example be used in a multi-frequency telecommunications system or in an altimetry application and multifrequency radiometry.
  • the multifrequency radiating horn of the invention has the advantage of combining the functionalities of at least four different instruments in the same antenna and of illuminating the antenna reflector by a single radiating horn and therefore with an identical, common opening. to all instruments, the various beams produced by the antenna having footprints superimposed and overlapping in whole or in part. This allows for very precise altimetry and radiometry measurements because the landforms illuminated by the antenna are wholly or partly the same for all instruments.
  • This also allows on the one hand, maximize the performance of the antenna without the need to increase the diameter of the antenna reflector because a single radiating horn is placed exactly at the focus of the antenna and secondly, to enjoy a small variation the phase center of the radiating horn, near the focus of the antenna, according to the frequency band considered, unlike the case where several horns are used.
  • an antenna provided with a reflector and the radiator horn associated with an exciter operating in the four frequency bands C, Ku, K, Ka was performed.
  • the estimated center of the beam impressions radiated on the Earth by the antenna in the four C, Ku, K and Ka frequency bands were aligned within 0.05 ° of each other.
  • the coaxial plungers 16 are mounted in a single specific corrugation 17 of the radiating horn, the specific corrugation 17 being an annular ring having a compatible internal diameter of the lowest frequency band B1 of the spectrum considered. and are dedicated to the injection and extraction of signals only in the lowest frequency band. But of course, more generally, it is also possible to extract several different frequency bands by means of dedicated coaxial plungers, mounted in different specific annular corrugations 17a, 17b, 17c of the radiating horn, the different specific corrugations 17a. , 17b, 17c having different internal diameters whose respective values directly depend on the center frequencies of the respective desired operating bands.
  • the values of the internal diameter of the specific corrugations in the different frequency bands are estimated, as a first approximation, by calculating the homothety of the desired frequency range with respect to the frequency band of the band C.
  • the frequency range which may be centered, for example, around 8 GHz the homothetic coefficient of reduction of the known dimensions for the band C is between 0.65 (5.25 GHz / 8 GHz) and 0.7 (5.6 GHz / 8 GHz) to obtain the value of the diameter corresponding to the X band, the diameter then being between 24 mm (0.65 x 37 mm) and 28 mm (0.7 x 40 mm).
  • the figure 7 illustrates a longitudinal sectional diagram of an exemplary embodiment in which three frequency bands C, Ku and Ka are sampled through the side wall of the radiating horn via three sets of different coaxial divers, 16a, 16b , 16c arranged in three different specific corrugations of the radiating horn.
  • the three specific corrugations have different internal diameters suitable for the propagation of the signals in the respective frequency bands.
  • the internal diameters of the different specific corrugations are all the larger and located closer to the diameter of the radiating aperture 13 of the radiating horn than the frequency band is lower.
  • first coaxial plungers 16a implanted in a specific corrugation of larger internal diameter, located closest to the radiating opening 13 of the radiating horn.
  • Second coaxial plungers 16b dedicated to the signals in the intermediate band Ku are implanted in a specific intermediate diameter corrugation and the third coaxial plungers 16c dedicated to the Ka band are located in a specific corrugation of smaller internal diameter located further from the diameter. 13.
  • Each set of coaxial plungers may comprise four coaxial plungers regularly distributed angularly, the coaxial plungers being diametrically opposed in pairs.
  • two opposite coaxial plungers are visible for each operating frequency band, the two diametrically opposite coaxial plungers for exciting the radiating horn according to one of the two vertical or horizontal linear polarizations.
  • the frequency bands explicitly described are only exemplary embodiments and may of course be replaced by any other desired frequency band.
  • the lowest frequency band may be another frequency band than the C band and the intermediate and high frequency bands may be also different from the Ku, K, Ka frequency bands explicitly described.
  • the number of specific corrugations equipped with coaxial divers is not limited to one.
  • the radiating horn may have N specific corrugations equipped with coaxial plungers, where N is greater than or equal to one.
  • the number N of specific corrugations and their internal diameter is a function of the frequency bands to be propagated by coaxial plungers integrated in said specific corrugations.

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Claims (10)

  1. Multifrequenz-Hornstrahler, fähig, Signale in einem Frequenzspektrum zu propagieren, welches mehrere unterschiedliche Frequenzbänder B1,..., Bi, ...,BN beinhaltet, wobei i zwischen 1 und N beträgt, B1 das niedrigste Frequenzband ist, wobei Bi mindestens ein Zwischenfrequenzband ist und BN das höchste Frequenzband ist, wobei der Hornstrahler eine seitliche achsensymmetrische Wand rund um eine Längsachse Z besitzt, eine axiale Zugangsöffnung (12), genannt Mündung, und eine strahlende Öffnung (13) entgegengesetzt von der der axialen Zugangsöffnung, wobei die seitliche Wand (14) einen axialen Längskanal (11) begrenzt, welcher die axiale Zugangsöffnung und die strahlende Öffnung miteinander verbindet, wobei der axiale Längskanal (11) im Querschnitt einen ansteigenden Durchmesser zwischen der axialen Zugangsöffnung und der strahlenden Öffnung besitzt, wobei die Seitenwand (14) eine Innenfläche besitzt, gebildet aus einer Vielzahl von konzentrischen, ringförmigen Korrugationen (15), befindlich in jeweiligen miteinander parallelen und zur Längsachse Z rechtwinkligen Ebenen Z, wobei jede Korrugation auf die Längsachse Z zentriert ist, dadurch gekennzeichnet, dass der Hornstrahler (10) zudem vier koaxiale Tauchelemente (16) besitzt, welche jeweils paarweise diametral entgegengesetzt in einer spezifischen, hierfür bestimmten Korrugation (17) der seitlichen Wand eingelegt sind, rechtwinklig zur Längsachse Z, wobei die vier koaxialen Tauchelemente (16) in einer zur Längsachse Z rechtwinkligen Ebene in gleichem Winkel verteilt sind und in den axialen Längskanal (11) des Hornstrahlers (10) ragen, wobei jedes der koaxialen Tauchelemente (16) zur Signalpropagation in dem tiefsten Frequenzband B1 des betrachteten Frequenzspektrums bestimmt ist.
  2. Hornstrahler nach Anspruch 1, dadurch gekennzeichnet, dass jedes koaxiale Tauchelement (16) aus einem Metallstab (18) besteht, beinhaltend ein fest mit einem Metallendstück (19) in Form einer Scheibe oder eines Kegelstumpfs verbundenes Ende, wobei das Metallendstück (19) rechtwinklig zum Metallstab (18) ist, wobei das Metallendstück (19) in den axialen Längskanal (11) des Hornstrahlers taucht (10).
  3. Hornstrahler nach Anspruch 2, dadurch gekennzeichnet, dass er zudem vier koaxiale Verbinder (21) besitzt, welche jeweils mit vier koaxialen Tauchelementen (16) verbunden sind, wobei jeder koaxiale Verbinder (21) einen Metallkern und einen Sockel (24) besitzt, welcher an einer äußeren Fläche der seitlichen Wand (14) des Hornstrahlers befestigt ist, wobei der Metallstab (18) eines jeden koaxialen Tauchelementes (16) jeweils aus dem Metallkern des entsprechenden koaxialen Verbinders besteht.
  4. Hornstrahler nach Anspruch 3, dadurch gekennzeichnet, dass jeder koaxiale Verbinder (21) mit einem koaxialen Filter (22) verbunden ist, der zum Anpassen des entsprechenden koaxialen Tauchelementes (16) im tiefsten Frequenzband B1 des betrachteten Frequenzspektrums bestimmt ist.
  5. Hornstrahler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das tiefste Frequenzband B1 das Band C ist.
  6. Hornstrahler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er mehrere Sätze von koaxialen Tauchelementen (16a, 16b, 16c) besitzt, welche in unterschiedliche spezifische Korrugationen (17a, 17b, 17c) mit unterschiedlichen Innendurchmessern eingelegt sind, wobei jeder Satz von koaxialen Tauchelementen (16a, 16b, 16c) zur Signalpropagation in unterschiedlichen Frequenzbändern des betrachteten Frequenzspektrums bestimmt ist.
  7. Strahlungsquelle, beinhaltend einen Hornstrahler (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie zudem einen axialen Hohlwellenleiter (31) besitzt, verbunden mit der axialen Zugangsöffnung (12) des Hornstrahlers (10), Querports (38, 39), welche rechtwinklig mit dem axialen Hohlwellenleiter und einem axialen Endport (32) gekoppelt sind, wobei die Querports jeweils zur Propagation der Zwischenfrequenzbänder bestimmt sind, und der axiale Endport (32) zur Propagation des höchsten Frequenzbandes des betrachteten Frequenzspektrums fähig ist, wobei der axiale Hohlwellenleiter (31) eine Querschnittsfläche mit absteigender Abmessung zwischen der axialen Zugangsöffnung (12) und dem axialen Endport (32) besitzt.
  8. Strahlungsquelle nach Anspruch 7, dadurch gekennzeichnet, dass sie zwei Quer-Zugangsports (38, 39) besitzt, welche jeweils für zwei unterschiedliche Zwischenfrequenzbänder Ku und K bestimmt sind.
  9. Strahlungsquelle nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, dass das höchste Frequenzband des Spektrums das Band Ka ist.
  10. Antenne, beinhaltend einen Hornstrahler (10) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass sie zudem mindestens einen Reflektor (41) beinhaltet, wobei der Hornstrahler (10) den Reflektor (41) illuminiert.
EP16192643.1A 2015-10-09 2016-10-06 Kompakter multifrequenz-speisehornstrahler, strahlungsquelle und antenne, die einen solchen speisehornstrahler umfasst Active EP3154128B1 (de)

Applications Claiming Priority (1)

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FR1502126A FR3042317B1 (fr) 2015-10-09 2015-10-09 Cornet rayonnant compact multifrequences, source rayonnante et antenne comportant un tel cornet rayonnant

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US10540834B2 (en) * 2016-10-11 2020-01-21 Sensormatic Electronics, LLC Frictionless access control system with user tracking and Omni and dual probe directional antennas
DE202017107149U1 (de) 2016-12-01 2018-03-05 Kurtz Gmbh Crackspalt-Formwerkzeug zum Herstellen eines Partikelschaumstoffteils sowie Vorrichtung zum Herstellen eines Partikelschaumstoffteils
CN108039583B (zh) * 2017-10-31 2020-12-22 安徽四创电子股份有限公司 一种高频段毫米波馈源
CN109672022B (zh) * 2019-02-27 2024-04-09 中国电子科技集团公司第五十四研究所 一种圆锥喇叭天线
EP3937310A1 (de) * 2020-07-09 2022-01-12 MacDonald, Dettwiler and Associates Corporation Einteiliges gewelltes bauteil einer antenne und verfahren zu dessen herstellung

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FR2255716B1 (de) * 1973-12-20 1978-03-24 Thomson Csf
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US20170104271A1 (en) 2017-04-13
ES2674167T3 (es) 2018-06-27
FR3042317B1 (fr) 2017-12-01
FR3042317A1 (fr) 2017-04-14

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