EP2784874B1 - Antenne monopôle à large bande pour deux bandes de fréquences séparées par un écart de fréquence dans la plage d'ondes décimétriques pour des véhicules - Google Patents

Antenne monopôle à large bande pour deux bandes de fréquences séparées par un écart de fréquence dans la plage d'ondes décimétriques pour des véhicules Download PDF

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Publication number
EP2784874B1
EP2784874B1 EP14159092.7A EP14159092A EP2784874B1 EP 2784874 B1 EP2784874 B1 EP 2784874B1 EP 14159092 A EP14159092 A EP 14159092A EP 2784874 B1 EP2784874 B1 EP 2784874B1
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EP
European Patent Office
Prior art keywords
antenna
monopole antenna
broadband monopole
strip
broadband
Prior art date
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EP14159092.7A
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German (de)
English (en)
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EP2784874A2 (fr
EP2784874A3 (fr
Inventor
Stefan Lindenmeier
Heinz Lindenmeier
Jochen Hopf
Leopold Reiter
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Delphi Deutschland GmbH
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Delphi Deutschland GmbH
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Publication of EP2784874A3 publication Critical patent/EP2784874A3/fr
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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
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
    • 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
    • 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
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected 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
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/32—Vertical arrangement of element
    • H01Q9/36—Vertical arrangement of element with top loading
    • 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
    • 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
    • H01Q9/44—Resonant antennas with a plurality of divergent straight elements, e.g. V-dipole, X-antenna; with a plurality of elements having mutually inclined substantially straight portions
    • H01Q9/46—Resonant antennas with a plurality of divergent straight elements, e.g. V-dipole, X-antenna; with a plurality of elements having mutually inclined substantially straight portions with rigid elements diverging from single point

Definitions

  • the invention relates to a vertical broadband monopole antenna according to the preamble of claim 1 (see. WO 03/034538 A1 ).
  • a frequency range between 698 and 960 MHz is provided for the LTE mobile radio standard - hereinafter referred to as subband U - and above a frequency gap, the frequency range between 1460 MHz and 2700 MHz, denoted here by upper band O, is provided, as in FIG Fig. 1 shown.
  • a middle band M is provided in the frequency range between 1460 MHz and 1700 MHz, which is to be assigned to the upper band.
  • the frequency gap between lower band U and upper band O is desired for protection against the radio services located there.
  • antennas are needed, which are suitable in addition to the electrical function for vehicles, with the economy of production is of particular importance.
  • a multiband receiving antenna for the combined reception of satellite signals and terrestrial broadcasting radio signals is known in which over an electrically conductive base area a rod-shaped monopoly with roof capacity is provided. Furthermore, at least one annular satellite receiving antenna arranged concentrically with an antenna connection point is provided above the conductive base. From the WO 96/24963 A1 Disc antennas are known which have a flat or a fan-like triangular structure.
  • the US 2002/0109643 A1 discloses an L-band antenna comprising conically arranged antenna rods which are interconnected at a lower foot point.
  • the object of the invention is to develop an antenna according to the preamble of claim 1 such that a satellite reception is possible, wherein the deformation of the directional diagram of the satellite antenna is minimized.
  • the antenna is a vertical broadband monopole antenna for two frequency bands separated by a frequency gap - the lower band for the lower frequencies and the upper band for the higher frequencies - both located in the Dezimeterwellen Scheme, for vehicles and for transmission and / or reception with terrestrial emitted vertically polarized radio signals above a substantially horizontal conductive base surface 6 as a vehicle mass with an antenna connection point 3 located in the monopole base, comprising an antenna connection point 5.
  • the broadband monopole antenna 0 can be formed from a top band monopole 1 and a subband monopole combined and is for example made of a mechanically stiff electrically conductive film 33 as a continuous, electrically conductive and, for example, planar structure over a conductive base 6 substantially in a vertical Designed to run to this oriented level.
  • an example flat triangular structure 4 is present as a top band monopole 1 with a substantially horizontally oriented baseline in a top band monopole 8 above the conductive base 6 whose tip is connected to the antenna connection point 5 ,
  • a roof capacitance 10 designed substantially as a rectangular planar structure 16, in particular, is designed underneath.
  • the triangular structure 4 and the rectangular structure 16 as a roofing capacity 10 are inductively connected by high impedance at least one conductor strip 15 with particular narrow stripline width 14 of, for example, less than or equal to 7 mm for the separation of radio signals in the upper band, whereby the sub-band monopole 2 is formed.
  • a vertical broadband monopole antenna for vehicles for two frequency bands separated frequency bands, namely a lower band U for lower frequencies and an upper band O for higher frequencies, both located in the Dezimeterwellen Scheme, for transmission and / or reception with terrestrially emitted vertically polarized radio signals a substantially horizontal conductive base 6 as a vehicle ground with an antenna connection point 3 located in the monopole base comprising the following features:
  • the broadband monopole antenna is formed of a self-supporting electrically conductive structure which is oriented over the base 6 substantially perpendicular to this.
  • the electrically conductive structure comprises at the lower end of the broadband monopole antenna a truncated triangular structure 4 with a substantially horizontally oriented baseline, the tip of which forms an antenna connection point 5 of the antenna connection point 3.
  • the electrically conductive structure comprises, adjacent to the upper end of the broadband monopole antenna 0 underneath, a roof capacitance 10 substantially configured as a rectangular structure 16.
  • the triangular structure 4 and the rectangular structure 16 are inductive by at least one conductor strip 15, 15a, 15b for separating radio signals in the upper band connected with high resistance.
  • the electrically conductive structure may have at least two spaced conductor strips 15, whereby a frame structure 11, consisting of the triangular structure 4, the rectangular structure 16 and the conductor strip 15 is formed.
  • the conductor strip or strips 15, 15a, 15b may contain meander-shaped forms 24 for the frequency-selective separation.
  • the inner angle 12 at the top of the triangular structure 4 may be approximately between 30 and 90 degrees.
  • the triangular structure 4 is designed by strip-like lamellae 20 arranged fan-like in the triangular plane and converging in the tip.
  • At least one annular satellite receiving antenna 25, 25a, 25b arranged concentrically with the antenna connection point 3 is present above the conductive base 6.
  • the rectangular structure 16 may be formed substantially by vertical strip conductors 19, 19a, 19b which are separated from each other vertically but electrically, but which are connected at their upper end by a remaining strip 31.
  • the strip-like lamellae 30, 30a, 30b converging in the tip can be bent out of the plane of the triangular structure (4) in such a way that they essentially run on the lateral surface of a tip-shaped cone with a circular or elliptical cross section.
  • the roof slats 19, 19a, 19b may be successively in the opposite direction in the way that they are arranged in the projection on a transverse to the strip 31 plane V-shaped.
  • the converging lamellae 20a, 20b in the tip can be successively contrasted in the manner out of the plane of the triangular structure 4 in such a way that they are arranged in the projection on a plane transverse to the triangular structure 4 in a V-shaped manner.
  • the broadband monopole antenna 0 can be arranged under a covering hood 32 and the at least one conductor strip 15, 15a, 15b can be guided at least partially and in particular as far as possible along the inner wall of the covering hood.
  • the electrically conductive structure may be made of electrically conductive sheet and only one, i. a single self-supporting conductor strip 15 may be present.
  • the electrically conductive structure may be provided by metallic coating 33 on a printed circuit board whose contour substantially follows the contours of the electrically conductive structure of the broadband monopole antenna 0.
  • the mirror image of the broadband monopole antenna 0 at the conductive base 6 can be replaced by their omission by a same to this other broadband monopole antenna in such a way that is given to the plane of the conductive base 6 symmetrical dipole and a symmetrical antenna junction of this dipole between the antenna connection point 5 of the broadband monopole antenna 0 and the - this accordingly - mirrored at the conductive base 6 antenna connection point 5 of the further broadband monopole antenna is formed.
  • the broadband monopole antenna in its flat designed basic version in Fig. 2 is essentially formed of a subband monopole 2 for covering the sub-band with a required antenna height 9 in combination with a top band monopole 1 with the top band monopole 8 with a common antenna connection point 3.
  • a subband monopole 2 for covering the sub-band with a required antenna height 9 in combination with a top band monopole 1 with the top band monopole 8 with a common antenna connection point 3.
  • To avoid an excessive effective antenna height 9 in the frequency range of the upper band of the lower band monopole 2 is designed in the frequency range of the upper band inductively high impedance conductor strips 15 with narrow stripline width 14 in conjunction with a roofing capacity 10.
  • the latter is essentially embodied as a flat rectangular structure 16 and designed with a large horizontal extension 23 compared to the vertical extension 22.
  • the monopole antenna according to the invention is made, for example, from an electrically conductive foil 33 (FIG. Fig. 16 ) designed as a contiguous, electrically conductive structure extending in a plane substantially perpendicular to the conductive base 6 level extending.
  • an electrically conductive foil 33 (FIG. Fig. 16 ) designed as a contiguous, electrically conductive structure extending in a plane substantially perpendicular to the conductive base 6 level extending.
  • the self-supporting, electrically conductive structure which is in particular integrally formed to use electrically conductive sheet or a self-supporting electrically conductive film, resulting in the entire broadband monopole antenna 0 can produce a mechanically self-supporting structure.
  • This structure can be produced, for example, by a punching process or by a controlled cutting operation, for example by controlled laser cutting.
  • the production of a punching tool will prove to be economically advantageous in particularly large numbers, because the monopole antenna can be multiplied by automated punching operations extremely cost.
  • the computer-controlled laser cutting can be more economical.
  • Fabrication of the broadband monopole antenna 0 of sheet metal offers the particular advantage of metallic rigidity, which is of particular importance for use as a vehicle antenna.
  • a particular advantage of this flat design structure is their negligible wind resistance to call, if it is designed to extend in an advantageous manner in a plane whose normal is oriented perpendicular to the direction of travel of the vehicle.
  • the electrically conductive structure can be selected by the metallic coating of a dielectric plate, that is to say a printed circuit board.
  • a dielectric plate that is to say a printed circuit board.
  • This value can in principle be achieved in an antenna according to the invention in its complete embodiment at the antenna connection point 3 with an antenna height 9 of 6 cm.
  • the properties of the sub-band monopole 2 are essentially determined by its antenna height 9 and the size of the flat roof capacity 10, the horizontal extent 23 with about 6cm much larger, that is designed at least three times larger than the vertical extent 22. A much larger Although the vertical extent 22 increases the capacitance value of the roof capacitance 10, it reduces the effective height of the subband monopole 2, which, in contrast to the capacitance value, squares into the formation of the frequency bandwidth of the subband monopole 2.
  • the formation of the upper band monopole 1 is essentially given by the flat triangular structure 4, provided that the inductive effect of the conductor strips 15 with narrow stripline width 14 for the separation of radio signals in the upper band of the roof capacity 10 is sufficiently large. This is usually given with a stripline width of less than or equal to 7 mm. To increase this separating effect can be inventively provided to provide the conductor strips 15 with meandering shapes 24.
  • the functional division of the wideband monopole antenna 0 into the subband monopole 2 and the top band monopole 1 is not strictly seen. Rather, the transition between the effects is fluent and the subdivision is to be understood as a description of the main effects in the two frequency ranges.
  • the mode of action of the upper band monopole located above the conductive base 6 1 is essentially given by the design of the flat triangular structure 4.
  • an apex triangular structure 4 with a triangular opening angle 12 is provided in this embodiment, the tip of which is connected to the antenna connection point 5.
  • the antenna connection point 3 for the broadband monopole antenna 0 is formed.
  • the height of the baseline of the flat triangular structure 4 above the conductive base 6 essentially forms the effective upper band monopole height 8, by which the frequency response of the upper band monopole 1 is substantially determined.
  • the upper band monopole height 8 at the upper frequency limit of the upper band should not be greater than about 1/3 of the free space wavelength at this frequency.
  • values between 30 and 90 degrees have proved favorable.
  • the resulting wideband triangular structure allows it to meet the often-demanded impedance matching requirement at the VSWR ⁇ 2.5 in the upper band frequency range.
  • a frame structure 11 is designed to achieve a particular rigidity.
  • the electrically conductive structure consists of a material of particular rigidity, for example, thin sheet metal.
  • the broadband monopole antenna 0 can be used with only one conductor strip 15, as in FIG Fig. 8 represented, designed. In the interest of mechanical stability but then a larger stripline width 14 is provided for this.
  • a plurality of meander-shaped expression 24 is generally necessary.
  • a switching element with the operation of a parallel resonant circuit 28 in the conductor strips 15.
  • This parallel resonant circuit is used to support the frequency-selective separation of the sub-band monopole 2 of signals in the upper band.
  • the parallel resonant circuit 28 may, as in Fig. 4 in each case comprise a parallel capacitor 27 designed as an interdigital structure 26 and a parallel inductance 28 designed as a strip conductor.
  • this switching element can be punched or cut by way of example from sheet metal via the conductor strips 15 in the design of the mechanically self-supporting broadband monopole antenna 0 are included.
  • a three-dimensional structure may be provided for it in a (not claimed) embodiment which is formed from the two-dimensional structure in such a way that an approximately conical structure is sought instead of the flat triangular structure 4.
  • the form of such a monopoly is in Fig. 9 indicated by the conical monopole 18 with electrically conductive lateral surfaces.
  • the economically advantageous manufacturability of punched or cut sheet should be maintained.
  • the flat triangular structure 4 by a fan-like in the lower triangle tip co-existing strip-shaped fins 20, as in Fig. 5 shown to execute.
  • Fig. 10 By diffusing the slats 20 so that they lie on the lateral surface of a cone standing on the top, these become conical slats 30 and the conical monopole 18 in Fig. 9 is modeled in terms of its effect as a high band monopoly 1.
  • Fig. 10 shown in detail and also according to the section AA 'in Fig. 11 seen as a plan view.
  • Fig. 11 is the in Fig. 10 indicated cone cross section elliptical and thus the cone opening angle 17a ( Figure 10 ) in the x direction due to the requirements with respect to the aerodynamic properties of the antenna chosen smaller than the cone opening angle 17 in the direction of travel of the vehicle (y-direction).
  • a ring-shaped satellite receiving antenna 25 is disposed concentrically with the antenna junction 3 of a broadband monopole antenna 0.
  • the result in Fig. 6a illustrated azimuthal variations in the antenna gain of the satellite receiving antenna 25 at about 2.3 GHz.
  • the gain variation of 0.6 dBi is already above the tolerance value and can not be tolerated at 60 degrees with 1.2 dBi.
  • the inventive design of the triangular structure 4 from at the top of a fan-like running together slats 20, as in Fig. 5 more favorable than a closed flat triangular structure 4 according to Fig. 3 ,
  • This advantage of little influence on the radiation characteristics of the satellite receiving antenna 25 is particularly pronounced in the design of the upper band monopole 1 of cone blades 30. This is an example of the in Fig.
  • the strip width 21 should not be greater than 1/8 of the free space wavelength of the highest frequency in the upper band.
  • FIG. Fig. 13 with view across the direction of travel (x-direction) and in Fig. 14 with view in direction of travel (y-direction) is shown.
  • FIG. 14 visible extension of the cover 32 transversely to the direction of travel the possibility of further spatial design of the originally areal manufactured broadband monopole antenna 0 with the advantages of increasing the bandwidths of both monopolies 1 and 2.
  • This is expressed by a better configurability of the antenna impedance with respect to the VSWR Value at the antenna connection point 3 off. This gives the possibility to be able to largely do without a matching network.
  • the strip-shaped roof louvers 19 of the roofing capacity 10 which are contiguous at their upper end over a remaining strip, can be selected in such a way that they are arranged in a V-shape in the projection on a plane lying transversely to the direction of travel.
  • These are alternately the in Fig. 13 black filled marked roof slats 19a in the x direction and the white filled filled roof slats 19b deflected in the opposite direction in the negative x direction, so that in the projection in Fig. 13 visible V-shaped structure is given.
  • the capacity value of the roofing capacity 10 is greater. This leads to an increase in the bandwidth of the subband monopole 2 and facilitates compliance with the impedance matching condition at the VSWR value to be maintained.
  • the lamellae 20, 20a, 20b about the inner boundary of the cover 32 following be understoodknelt following. That is, the converging in the lower triangular tip strip-shaped fins 20, 20a, 20b of the upper band monopoly 1 are bent out of the plane of the flat triangular structure 4 successively in such a way that in the projection on a plane transverse to the direction of travel about V- are arranged shaped.
  • the slats 20 are in such a way dignified that the in Fig. 13 fills 20 a marked in black in the x direction and the lamellae 20 b marked filled in white are deflected in opposite directions in the negative x direction, so that the fins projected in the projection in FIG Fig. 14 visible V-shaped structure is given.
  • this measure serves to increase the frequency bandwidth of the upper band monopole 1 with the associated advantage in the realization of the impedance matching in the antenna base.
  • antennas as in the Fig. 13 .
  • the conductor strips can thus be shaped so that they extend as far as possible along the inner wall of the cover 32.
  • the spatial design according to the invention is additionally advantageous with respect to the problem of impedance matching over large frequency ranges.
  • the special advantage associated with the present invention is that this spatially designed antenna is punched out of a sheet-like electrically conductive structure (sheet or foil) or cut and shaped by simple subsequent bending as described above.
  • two broadband monopole antennas O and 0a according to the invention under a cover 32 in the direction of travel behind each other, as in Fig. 15 to install. It has been shown that the annular satellite antennas 25 in the base of a broadband monopole antenna 0 by the presence of the other broadband monopole antenna 0a undergoes no disturbing influence on their radiation properties. Conversely, this also applies with regard to the effect of the broadband monopole antenna 0 on the satellite antennas 25a at the base of the broadband monopole antenna 0a.
  • a broadband monopole antenna 0 in a further advantageous application of a broadband monopole antenna 0 according to the invention, this is supplemented by a further, same to this same broadband monopole antenna in a known per se to a dipole.
  • the mirror image of the broadband monopole antenna 0 is replaced at the conductive base 6 with their omission by this further broadband monopole antenna in such a way that a symmetrical to the plane of the conductive surface 6 dipole is given.
  • the symmetrical antenna connection point of this dipole is formed between the antenna connection point 5 of the broadband monopole antenna 0 and the antenna connection point 5 which is mirrored to the conductive base 6.
  • a broadband monopole antenna 0 is in support of the impedance matching at the lower frequency end of the lower band connected at its upper end with the roof capacity 10 and the conductive base 6 extending towards coupling ladder 35 is present, which at its lower end with the conductive base 6 is coupled.
  • This coupling conductor 35 is in Fig. 17 illustrates and complements the subband monopole 2 in such a way that it is possible to match the impedance at the antenna connection point 3, at the lower frequency end of the lower band.
  • the impedance matching can be further improved in that this coupling of the coupling conductor 35 with the conductive base 6 via a two-pole coupling network 36, consisting of reactive elements occurs.

Claims (11)

  1. Antenne monopolaire verticale à large bande pour véhicule destiné à deux bandes de fréquences séparées par un intervalle de fréquence, à savoir une bande inférieure (E) pour des basses fréquences et une bande supérieure (O) pour des fréquences plus élevées, situées toute deux dans la plage des ondes décimétriques, pour l'émission et/ou la réception avec des signaux radio terrestres émis avec polarisation verticale via une surface de base conductrice (6) essentiellement horizontale à titre de masse du véhicule et comprenant un emplacement de raccord d'antenne (3) qui se trouve au point au pied du monopôle, incluant les éléments techniques suivants :
    - l'antenne monopolaire à large bande (O) est conçue à partir d'une structure électriquement conductrice autoportante, qui est orientée au-dessus de la surface de base (6) essentiellement perpendiculairement à celles-ci ;
    - la structure électriquement conductrice inclut à l'extrémité inférieure de l'antenne monopolaire à large bande (O) une structure triangulaire (4) dressée sur une pointe avec une ligne de base orientée essentiellement horizontalement, dont la pointe forme un point de - raccordement d'antenne (5) de l'emplacement de raccordement d'antenne (3) ;
    - la structure électriquement conductrice inclut, en situation adjacente à l'extrémité supérieure de l'antenne monopolaire à large bande (O) au-dessous de celle-ci une capacité terminale (10) réalisée essentiellement sous forme de structure rectangulaire (16) ;
    - la structure triangulaire (4) et la structure rectangulaire (16) sont reliées de manière inductive et avec une forte résistance par au moins un ruban conducteur (15, 15a, 15b) pour la séparation de signaux radio dans la bande supérieure,
    caractérisée en ce que
    - au-dessus de la surface de base conductrice (6) il est prévu au moins une antenne de réception satellite (25, 25a, 25b) de forme annulaire agencée concentriquement à l'emplacement de raccordement d'antenne (3), et
    - en ce que la structure triangulaire (4) est conçue par des lamelles en forme de ruban (20) agencées en éventail dans le plan triangulaire et convergeant dans la pointe.
  2. Antenne monopolaire à large bande (O) selon la revendication 1, caractérisée en ce que la structure électriquement conductrice comprend au moins deux rubans conducteurs écartés (15) grâce à quoi il est formé une structure de cadre (11), constituée par la structure triangulaire (4), par la structure rectangulaire (16) et par les rubans conducteurs (15).
  3. Antenne monopolaire à large bande (O) selon la revendication 1 ou 2,
    caractérisée en ce que le ou les rubans conducteurs (15, 15a, 15b) contiennent des impressions en forme de méandres (24) en vue d'une séparation sélective en fréquence.
  4. Antenne monopolaire à large bande (O) selon l'une au moins des revendications 1 à 3,
    caractérisée en ce que l'angle intérieur (12) à la pointe de la structure triangulaire (40) est approximativement entre 30 et 90 degrés.
  5. Antenne monopolaire à large bande (O) selon l'une au moins des revendications 1 à 4,
    caractérisée en ce que, pour améliorer le découplage électromagnétique, la structure rectangulaire (16) est formée essentiellement par des lamelles de terminaison électriquement conductrices (19, 19a, 19b) verticales en forme de ruban, s'étendant séparément les unes des autres mais assemblées les unes aux autres à leur extrémité supérieure via un ruban restant (31).
  6. Antenne monopolaire à large bande (O) selon l'une au moins des revendications 1 à 5,
    caractérisée en ce que les lamelles en forme de ruban convergeant dans la pointe (30, 30a, 30b) sont coudées hors du plan de la structure triangulaire (4) de telle manière qu'elles s'étendent essentiellement sur la surface enveloppe d'un cône debout sur la pointe avec une section transversale circulaire ou elliptique.
  7. Antenne monopolaire à large bande (O) selon la revendication 5, caractérisée en ce que les lamelles de terminaison (19, 19a, 19b) sont coudées successivement en sens opposé de telle manière qu'elles sont agencées en formant un V dans la projection sur un plan s'étendant transversalement au ruban (31).
  8. Antenne monopolaire à large bande (O) selon l'une au moins des revendications 1 à 5 et 7,
    caractérisée en ce que les lamelles (20a, 20b) convergeant dans la pointe sont coudées successivement en sens opposé de telle manière qu'elles sont agencées en formant un V dans la projection sur un plan s'étendant transversalement à la structure triangulaire (4).
  9. Antenne monopolaire à large bande (O) selon l'une au moins des revendications 1 à 8,
    caractérisée en ce que l'antenne monopolaire à large bande (O) est agencée sous un capot de couverture (32), et en ce que ledit au moins un ruban conducteur (15, 15a, 15b) est guidé au moins partiellement et en particulier aussi loin que possible le long de la paroi intérieure du capot de couverture.
  10. Antenne monopolaire à large bande (O) selon l'une des revendications 1 à 9,
    caractérisée en ce que la structure électriquement conductrice est constituée d'une tôle électriquement conductrice et en ce qu'il est prévu uniquement un ruban conducteur autoportant (15), dont la largeur conductrice (14) est en particulier inférieure ou égale à 7 mm.
  11. Antenne monopolaire à large bande (O) selon l'une au moins des revendications 1 à 10,
    caractérisée en ce qu'il est prévu un conducteur de couplage (35) relié à son extrémité supérieure avec la capacité de terminaison (10), ce conducteur étant couplé à son extrémité inférieure avec la surface de base conductrice (6).
EP14159092.7A 2013-03-24 2014-03-12 Antenne monopôle à large bande pour deux bandes de fréquences séparées par un écart de fréquence dans la plage d'ondes décimétriques pour des véhicules Active EP2784874B1 (fr)

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Application Number Priority Date Filing Date Title
DE102013005001.4A DE102013005001A1 (de) 2013-03-24 2013-03-24 Breitband-Monopolantenne für zwei durch eine Frequenzlücke getrennte Frequenzbänder im Dezimeterwellenbereich für Fahrzeuge

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EP2784874A2 EP2784874A2 (fr) 2014-10-01
EP2784874A3 EP2784874A3 (fr) 2014-12-03
EP2784874B1 true EP2784874B1 (fr) 2016-07-20

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FR3025611B1 (fr) * 2014-09-05 2019-04-19 Centre National D'etudes Spatiales Procede d'authentification de signaux recus d'une constellation de satellites
CN104810611A (zh) * 2015-04-28 2015-07-29 邝嘉豪 设有第一矩形过孔的单极性天线
CN104882665A (zh) * 2015-04-28 2015-09-02 邝嘉豪 一种高增益具有第二辐射片的单极性振子
CN104810610A (zh) * 2015-04-28 2015-07-29 邝嘉豪 设有隔离带的双极性振子
DE102016010200A1 (de) 2016-05-04 2017-11-09 Heinz Lindenmeier Antenne unter einer schalenförmigen Antennenschutzhaube für Fahrzeuge
DE102016005556A1 (de) 2016-05-06 2017-11-09 Heinz Lindenmeier Satellitenempfangsantenne unter einer Antennenschutzhaube
CN110034400A (zh) 2018-01-05 2019-07-19 台达电子工业股份有限公司 天线装置和天线系统
WO2020067253A1 (fr) * 2018-09-28 2020-04-02 株式会社ヨコオ Dispositif d'antenne embarqué
WO2020240916A1 (fr) * 2019-05-29 2020-12-03 パナソニックＩｐマネジメント株式会社 Antenne multibande
DE102022001407A1 (de) 2022-04-25 2023-10-26 Heinz Lindenmeier Kombinationsantenne für Mobilfunk und Satellitenempfang
CN114899593A (zh) * 2022-05-25 2022-08-12 陕西北斗科技开发应用有限公司 一款适用于北斗与wlan系统互补结构加载微带天线

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US20140285387A1 (en) 2014-09-25
DE102013005001A1 (de) 2014-09-25
EP2784874A3 (fr) 2014-12-03

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