EP3753073A1 - Antenne de communication avec un transpondeur - Google Patents

Antenne de communication avec un transpondeur

Info

Publication number
EP3753073A1
EP3753073A1 EP19706425.6A EP19706425A EP3753073A1 EP 3753073 A1 EP3753073 A1 EP 3753073A1 EP 19706425 A EP19706425 A EP 19706425A EP 3753073 A1 EP3753073 A1 EP 3753073A1
Authority
EP
European Patent Office
Prior art keywords
antenna
antenna surface
distance
reflection surface
ized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19706425.6A
Other languages
German (de)
English (en)
Inventor
Michael Reppel
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.)
Turck Holding GmbH
Original Assignee
Turck Holding GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Turck Holding GmbH filed Critical Turck Holding GmbH
Publication of EP3753073A1 publication Critical patent/EP3753073A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
    • 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H01Q21/0075—Stripline fed arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/065—Patch antenna array
    • 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
    • H01Q5/378—Combination of fed elements with parasitic 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0428—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave

Definitions

  • An antenna array consisting of a first antenna, a reflector and an antenna feed network is described in "Broadband Single-Patch Circularly Polarized Microstrip Antenna with Dual Capacitively Coupled Feeds" IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION.
  • a supply network consisting of microstrips, which capacitively couples AC voltage signals to a circular disk-shaped antenna at two different supply points.
  • the alternating voltages are phase-shifted by 90 °, so that the antenna surface emits perpendicular to each other, phase-shifted by 90 ° electromagnetic waves, which are circularly polarized due to their phase shift.
  • the difference in amplitude of the partial waves at 90 ° to each other is up to 3 dB.
  • planar antennas are used to data in the 900 MHz
  • the memory IC of the transponder is enabled to transmit data wirelessly to the antenna arrangement or to receive wireless information from the antenna arrangement.
  • the operating frequency is in the range between 840 MHz and 960 MHz.
  • the electromagnetic signal is circularly polarized.
  • a prior art planar antenna has a first metal surface which is used as an antenna element for transmission and reception.
  • a second, larger metal surface serves as a reflector and rear shield.
  • the distance between the two metal surfaces is typically 5 to 25 mm in the prior art.
  • the lateral dimension of the antenna element is approximately 150 mm, ie approximately half of the free space wavelength of the said frequency range.
  • the reflector is larger than the antenna element and has a lateral dimension of about 200 mm.
  • the RFID control electronics can be arranged directly behind the antenna or the reflector. Due to the multiple feed points, it is possible to receive or transmit linear or circularly polarized electromagnetic waves.
  • the axis ratio should not be less than one dB.
  • the antenna arrangement has an optimal transmission-reception behavior only in the range of a maximum, which is usually 900 MHz, if it is a universally usable antenna, or which lies in the middle of one of the sub-bands used. In the latter case, this antenna is optimally suited only for use in the respective subband.
  • the object of the invention is to provide an antenna arrangement which can be manufactured cost-effectively for communication with a transponder in the
  • the fiction, contemporary device is an antenna arrangement for data exchange with a transponder and for energy transmission to a transponder, in particular in the 900 MHz band.
  • a first antenna surface for transmitting and receiving electromagnetic waves.
  • a reflection surface extends in the backward direction and parallel to the first antenna surface.
  • the surface normal directed from the antenna surface away from the reflection surface defines an effective direction in which the electromagnetic waves can be transmitted or from which electromagnetic waves can be received by the transponder.
  • the antenna surface has a first distance to the reflection surface.
  • the spacing space between the first antenna surface and the reflection surface is preferably completely filled by a dielectric body, which may preferably be a printed circuit board, so that the first distance is in the range between 0.5 and 3 mm.
  • an additional metallization is arranged between the first antenna surface and the reflection surface, which preferably has no electrical effect.
  • the additional metallization is electrically separated from the antenna surface and the reflection surface by means of two dielectric bodies.
  • the additional metallization can extend between two dielectric bodies.
  • the antenna surface is formed by a first metallization which extends on a planar surface of a support body.
  • the reflection surface is a metallization of a second surface of the support body, wherein the two surfaces are parallel to each other and the support body is substantially dielectric.
  • a microstrip structure is located on the rear side of the reflection surface, with respect to the effective direction. Between microstrip structure and reflection surface is also a dielectric body.
  • the microstrip structure may be formed by metal strips of a printed circuit board and forms a feed network.
  • the feed network, the reflection surface and the first antenna surface can be realized by a three-layer printed circuit board, wherein the two outwardly facing metallization surfaces are structured by etching or mechanical effects, namely to a first antenna surface and to a feed network, which consists of a or more microstrip whose length causes phase shifts.
  • the feed network, the reflection surface and the first antenna surface are realized by an at least four-layer printed circuit board.
  • a further, in particular electrically ineffective metallization (dummy metallization) is arranged.
  • the microstrip structure serves to provide phase-shifted AC signals.
  • feed points are provided, at which in each case 90 ° phase-shifted AC voltage signals are coupled into the first antenna surface.
  • these are feed points to which the alternating voltage signal with phase angles of 0 °, 90 °, 180 ° and 270 ° is fed.
  • the feed points are preferably arranged in a fourfold symmetry about an axis of symmetry of the first antenna surface.
  • the feed takes place capacitively, but preferably galvanically, for which purpose feed-in elements are used, which penetrate the reflection surface in an insulating manner at a plurality of mutually different points. It may be act to contact pins that connect the microstrip structure galvanically with the feed points of the first antenna surface.
  • the antenna surface is therefore able to transmit circularly polarized or else linearly polarized electromagnetic waves.
  • the first distance is substantially less than the guided wavelength, ie the wavelength forming at the operating frequency within the dielectric body.
  • the lateral dimensions of the antenna surface are chosen so that there arise two mutually perpendicular standing waves.
  • the distance between the reflection surface and the first antenna surface is in particular less than one tenth of the vacuum wavelength.
  • the distance between the feed network and the reflector may be less than the distance between the first antenna surface and the reflector.
  • the distance between feed network and reflector can be in the range between 0.1 and 3 mm.
  • the feed network can have two feed points, which are connected to the microstrip structure in such a way that, depending on the choice of the feed point, a left-handed or a right-handed polarized wave is formed.
  • the printed circuit board preferably consists of the composite material FR4 with three or four metallization levels of copper. On a top level, the first antenna surface is located. The middle level of a three-layer printed circuit board is almost completely metallised, thereby forming an antenna reflector. The middle level also serves as a shield to the feed network, which is located on the lowest level.
  • the feed network is preferably formed by microstrip lines and is connected to the feed points with feedthroughs. The feed points for connection to a 50 ohm transmission line may be formed by coaxial SMD connectors.
  • the feed elements which connect the feed points of the antenna surface to the feed network, penetrate the reflection surface in isolation from the reflection surface.
  • the feed-in The metalization is also isolated from the metallization.
  • the metallization is an intermediate layer between two dielectric layers.
  • the antenna surface is spaced apart from the reflection surface by the material thickness of two dielectric bodies and a metallization arranged therebetween. The second distance, which is greatly reduced in comparison with the prior art, ie the distance between the reflection surface and the first antenna surface filled in by the dicrotic, leads to a deterioration of the transceiver behavior alone.
  • the antenna arrangement according to the invention compensates for this eventual disadvantage by means of a second antenna surface, which is spaced apart in the effective direction by a third distance from the first antenna surface. This distance is less than a quarter of the wavelength resulting with the dielectric constant in the distance space between the first antenna surface and the second antenna surface. However, the distance is greater than the first distance, ie the distance between the first antenna surface and the reflection surface.
  • the second antenna surface may be a metal surface which extends on a second printed circuit board or on a comparable carrier material. In this case, the metal surface may point to the first antenna surface, so that the dielectric constant in the spacer space is essentially the dielectric constant of air.
  • the second antenna surface can also be arranged away from the first antenna surface on the carrier material, so that the thin carrier material compared to the third distance can contribute slightly to the dielectricity of the distance space.
  • the carrier carrying the second antenna surface may be connected by means of electrically conductive or non-conductive spacers to the dielectric body which carries the first antenna surface.
  • all metallizations are metal layers of printed circuit boards, so that the spacers essentially connect two printed circuit boards to one another, wherein the printed circuit boards extend parallel to one another.
  • the first antenna surface and the second antenna surface are preferably insulated from one another so that there is no galvanic connection between the two antenna surfaces.
  • the second antenna surface is realized by a metal surface of a housing.
  • the housing may have a housing lower part and a housing upper part.
  • the lower housing part may be made of a non-conductive material, but preferably of an electrically conductive material.
  • the housing cover is preferably non-conductive, consists for example of PC-ABS or polyamide 6 (PA 6 ).
  • the second antenna surface can be realized by various methods, for example, a metal foil or a thin metal surface can be glued, clipped or pressed into the lid of the housing. This metal surface can also be applied to a further, non-conductive carrier. Two-component injection molding or laser direct structuring is also provided. It is further preferably provided that the second antenna surface is coupled to the first antenna surface exclusively via an electromagnetic field.
  • the third distance ie the distance between the two antenna surfaces, which in principle can also be referred to as antenna elements in the sense of the invention, influences the transmission-reception behavior.
  • a small distance between the antenna elements leads to a strong coupling of the antenna elements. At a large distance, this coupling is weaker.
  • a strong coupling leads to a splitting of the resonance frequency into a lower resonance frequency and into an upper resonance frequency.
  • one of the antenna surfaces is interrupted with interruption structures.
  • the interrupt structure can island-shaped free-space to be in an otherwise completely metallized surface.
  • the second antenna surface preferably has the interrupt structures. In particular, it has one or more island-shaped nonconductive open spaces or is subdivided by non-conductive slots into a plurality of galvanically separated subareas.
  • the division of the antenna surface by means of the interruption structures is preferably rotationally symmetric or with a fourfold symmetry.
  • the antenna surfaces preferably have a rotationally symmetrical or fourfold symmetrical outline contour.
  • the feed points are preferably arranged in a selfishorialig symmetrical arrangement.
  • the lateral dimensions of the second antenna surface are larger than the lateral dimensions of the first antenna surface.
  • the total area of the second antenna area can be greater than the total area of the first antenna area.
  • the characteristic lengths of the two antenna surfaces that is, for example, a diameter or an edge length of a square are different from one another such that the characteristic length of the second antenna surface is greater than the characteristic length of the first antenna surface. If the two antenna surfaces have a surface shape deviating from the rotational symmetry, it is provided in particular that the antenna surfaces are offset from one another by an angle about the surface normal, for example by an angle of 45 °.
  • the two antenna surfaces can thus be formed, for example, in each case by square surfaces which lie above one another with their centers, but are rotated by 45 ° relative to one another.
  • the infeed points are arranged symmetrically relative to the center of the first antenna surface.
  • the dimensions or the characteristic length of the first antenna element is preferably half the guided wavelength of the intended operating frequency.
  • the second antenna element is also designed such that its dimensions, in particular its characteristic length, are half the wavelength of the intended purpose. operating frequency corresponds.
  • the feed points of the feed network are preferably designed such that the microstrips interconnecting the feed points have a length which corresponds to the phase offset, so that an ideal circular polarization of the entire antenna structure is achieved.
  • the axis ratio of the planar antenna according to the invention is below 1 dB at a designated operating frequency between 840 MHz and 960 MHz. In a particularly interesting frequency range between 840 MHz and 960 MHz.
  • the axis ratio may even be below 14 dB.
  • FIG. 1 is a schematic plan view of a first antenna surface 1, which has a square outline and dash-dotted lines the feed network 7 arranged below the first antenna 1;
  • FIG. 2 shows the plan view of a printed circuit board 10, which is a second antenna 11, which is divided by means of cross-shaped slots 16, 17 in four galvanically separated individual fields,
  • FIGS. 1 and 2 show a section according to the lines III-III in FIGS. 1 and 2 of an antenna arrangement according to the invention of a first exemplary embodiment
  • 8c shows three different design variants of a second antenna surface 11 with slit-shaped interruption structures 16, 17 which, in a crossing arrangement, subdivide the antenna surface 11 into a total of four identical sub-areas,
  • Fig. 9 tellung a further embodiment of the invention in an exploration sions represents S,
  • FIG. 10 shows schematically a section through that shown in FIG.
  • FIG. 11 shows a further embodiment of a printed circuit board as a carrier in the antenna surface 1 and the reflection surface 5.
  • FIGS 1 to 5 show a first embodiment of an inventive device according to the invention, which is an antenna arrangement for Communicating with an RFID tag in the 900 MHz band.
  • a printed circuit board 4 has on its front side a first coating, which is structured into a square.
  • the square metal surface 3 forms a first antenna surface 1 whose corner points form feed points 2.
  • the feed points 2 which are spaced apart from one another with the edge length a serve to supply phase-shifted alternating voltage signals having a frequency which has the following relation with the edge length a:
  • the edge length a corresponds to approximately half of the guided wavelength, that is, through which the electr - Trizticianskonstante the PCB reduced wavelength.
  • a rear, the metal surface 4 opposite metallization of the circuit board 4 forms a reflection surface 5, which extends substantially over the entire surface of the circuit board 4.
  • This metallization is structured with microstructures as feed network 7.
  • the individual microstrips 9, 14 of the feed network 7 are shown in FIG. 5.
  • the microstrips 9, 14 have a length such that an AC voltage signal fed in at a connection 12 or 13 at the feed points 2 in each case opposite the adjacent feed point 2 has a phase shifted by 90 °.
  • the feeding of an AC signal into the terminal 12 leads to a levorotatory shaft.
  • the feeding of an AC signal in the terminal 13 to a clockwise rotating shaft.
  • the simultaneous feeding of two equal-sized AC signals in both terminals 12 and 13 results in a linearly polarized wave.
  • the polarization direction is determined by the electrical phase difference of the two equal-sized AC voltage signals and can be adjusted so that, to a defined reference plane, a horizontally and vertically polarized wave is formed.
  • the first antenna surface 1 is galvanically connected to the feed network 7 at the feed points 2 by means of contact elements 8.
  • the contact elements 8 form feed elements which pass through openings of the metallization of the reflection surface 5. They are in particular plated through.
  • FIG. 2 shows a second printed circuit board 10, which is structured with a second antenna surface 11.
  • the second antenna surface 11 also has a square plan, but with an edge length b which is greater than the edge length a.
  • the edge length b is in the same connexion with the operating frequency of the antenna arrangement, but based on the dielectric constant of the distance space A between the first antenna surface 1 and second antenna surface 11.
  • the edge length b corresponds approximately to half the free space wavelength.
  • spacers 15 are provided which connect the printed circuit board 10 to the printed circuit board 4.
  • the spacers 15 may be made of metal or a dielectric material. Its length defines the size of the distance clearance A.
  • the second antenna surface 11 is subdivided into four rectangular areas, which are of equal size.
  • the slots 16, 17 intersect at the center of the outline of the second antenna surface 11.
  • the distance from the first antenna surface 1 to the reflection surface 5 is approximately 0.5 to 3 mm, preferably 1.5 mm, the distance between the first antenna surface 1 and the second antenna surface 11 is approximately 0.5 to 2 cm.
  • the distance A (FIG. 3) is less than one quarter of the vacuum wavelength of the operating frequency, for example the average frequency of the 900 MHz band.
  • the distance A between the first antenna surface 1 and second antenna surface 1 is smaller than one-tenth of the air wavelength of the operating frequency, which air-wave length is about 30 cm.
  • the board arrangement 4, 6, 10 may be formed by a three-layer board having a material thickness of about 2 mm, so that the microstrips 9, 14 of the feed network 7 are at a distance of 2 mm from the first antenna area 1 and Reflection surface 5 between microstep arrangement 9, 14 and the first antenna surface 1 extends.
  • the ligaments 6a to 6d show cross-shaped arrangements of the first antenna surface.
  • the second antenna surface 11 also has such outline contours.
  • the outline contour line of the antenna surfaces illustrated in the ligaments 6a to 6d surround a surface metallized continuously without interruption.
  • the outline contour of the antenna surface can also be square or circular.
  • the ligaments 7a to 7h show mutually different antenna surfaces, as they can preferably be formed by the second antenna surface 11.
  • the floor plans of the antenna surfaces surround a metallized surface forming non-metallized islands 18.
  • the islands 18 may be arranged in the region of the center of the square or round antenna surfaces 11.
  • the floor plans of the islands 18 may be square or round. It is also possible for a plurality of islands 18, which are separate from one another, to be arranged with a round or square plan in fourfold symmetry about the center of the antenna surface 11.
  • Ligatures 8a to 8c show antenna surfaces 11 which, by means of intersecting slots 16, 17, are arranged in galvanic, unconnected metal surfaces. are separated.
  • FIGS. 8a, 8b show square antenna surfaces 11, which are each divided into four equally sized surface sections, wherein the slots 16, 17 pass through the center of the antenna surface 11. While the slots 16, 17 run parallel to the edges of the square in FIG. 8 a, the slots 16, 17 run through the corners of the square antenna surface 11 in the embodiment shown in FIG. 8 b.
  • FIG. 8c shows a round antenna surface 11 which is subdivided into four quadrant surfaces by means of the slots 16, 17.
  • FIG. 9 shows a further embodiment of the invention.
  • the antenna arrangement is arranged in a housing consisting of a housing bottom part 19 and a housing cover part 20.
  • the Gezzauseboden- part 19 may consist of metal.
  • the housing cover 20, however, consists of a dielectric material, in particular a plastic.
  • a three-layer board 4, 6 is arranged in the housing 19, 20, a three-layer board 4, 6 is arranged.
  • the two dielectric layers of the circuit board 4, 6 separate three metallization layers.
  • An uppermost metallization forms, with a square metal surface 3, a first antenna surface 1, which is galvanically connected to a feed network 7 by means of feed elements 8.
  • the feed network 7 is formed by a lower metallization of the multilayer board, which is structured into microstrips 9, 14 and attached to the terminals 12, 13.
  • the second antenna surface 11 has a circular plan with a central window 18, which is not metallized.
  • the second antenna surface 11 is fastened to the inwardly pointing underside of the cover surface of the housing cover 20.
  • the attachment can be made by gluing, clipping or other means.
  • the second antenna surface 11 is galvanically separated from the first antenna surface 1.
  • the board arrangement 4, 6 is formed by a three-layer board.
  • the printed circuit boards 4, 6 can have significantly different thicknesses.
  • the printed circuit board 4 may have a thickness of 1.5 mm and the printed circuit board 6 a thickness of 0.36 mm.
  • a four-ply circuit board is provided in the exemplary embodiment shown in FIG.
  • This metalization 21 is electrically insulated from the reflection surface 5 by a dielectric body 4 and electrically insulated from the antenna surface 1 by a dielectric body 22.
  • the further metallization 21 may have no electrical function. It is a "dummy" metallization that mechanically stabilizes the entire assembly.
  • the thickness of the dielectric body 4 is about 0.36 mm.
  • the thickness of the further dielectric body 22 may be about 1.19 mm.
  • the thickness of the further dielectric body 22 is about 0.36 mm and that of the dielectric body 4 is about 1.19 mm.
  • reference numerals 23, 24 designate further metallizations which extend on the upper side or on the lower side of the multilayer board. In a sense, they cover the free surfaces of the antenna surface 1 and the feed network 7. These metallizations 23, 24 are separated from the antenna surface 1 or the feed network 7 by insulating layers (not shown).
  • the embodiment illustrated in FIG. 11 is therefore, technically, a symmetrical four-ply board with a 1.19 mm thick core and a 0.36 mm thick so-called prepreg on each side.
  • the total material thickness of this laminate body is approximately 2 mm.
  • Reflection surface 5 arranged body 6 corresponds, with a feed network 7, which has with respect to the direction of action W rearward of the reflection surface 5 with a second distance from the reflection surface 5 arranged microstrip structures 9, to provide phase-shifted AC signals at several mutually different feed points 2 by means of the reflection surface 5 isolated penetrating feed elements 8 such coupled into the first antenna surface 1, that the electromagnetic waves transmitted by the first antenna surface 1 are circularly polarized,
  • At least one of the two antenna surfaces 1, 11 is formed by a metal surface interrupted by interruption structures 16, 17, 18.
  • a device which is characterized in that only one of the two antenna surfaces 1, 11 has interruption structures 16, 17, 18 and the respective other antenna surfaces 1, 11 are formed by a continuous metal surface.
  • a device characterized in that the second antenna surface 11 has the interruption structures 16, 17, 18 and the first antenna surface 1 is a closed metal surface.
  • a device characterized in that the clearance space A between the first antenna surface 1 and the second antenna surface 11 is essentially an air space.
  • a device characterized in that the ground plan of the first antenna 1 and / or the second antenna 11 is a circle or a regular polygon, in particular with a fourfold symmetry.
  • a device characterized in that the interruption structures are rotationally symmetric or have a quadrivalent symmetry and in particular are formed by a circular area or intersecting slots 16, 17.
  • a device characterized in that the feed points 2 are arranged in a four-fold symmetry.
  • a device characterized in that the first distance is less than 3 mm and greater than 0.5 mm and / or that the second distance is less than 3 mm and greater than 0.1 mm and / or that the third distance is greater than 0.5 cm and less than 2 cm.
  • a device which is characterized in that the device is arranged in a housing which consists in particular of a housing bottom part 19 and a housing cover part 20, wherein the second antenna surface 11 is formed as a metallization of the in particular dielectric housing cover part 20 ,

Landscapes

  • Waveguide Aerials (AREA)

Abstract

L'invention concerne un dispositif d'échange de données avec un transpondeur. Une première surface d'antenne (1) s'étend sur une large surface latérale d'un corps diélectrique (4). Une surface de réflexion (5) s'étend sur une large surface latérale opposée. Un réseau d'alimentation (7) est prévu à l'arrière de la surface de réflexion (5) pour fournir une tension alternative déphasée qui est injectée dans la surface d'antenne (1) en plusieurs points d'injection différents (2) au moyen d'éléments d'injection (8) pénétrant la surface de réflexion (5) de manière isolée. Une deuxième surface d'antenne (11) est espacée de la première surface d'antenne (1) d'une distance (A) au moyen d'éléments d'espacement (15).
EP19706425.6A 2018-02-14 2019-02-13 Antenne de communication avec un transpondeur Pending EP3753073A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018103288.9A DE102018103288A1 (de) 2018-02-14 2018-02-14 Antenne zur Kommunikation mit einem Transponder
PCT/EP2019/053477 WO2019158543A1 (fr) 2018-02-14 2019-02-13 Antenne de communication avec un transpondeur

Publications (1)

Publication Number Publication Date
EP3753073A1 true EP3753073A1 (fr) 2020-12-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19706425.6A Pending EP3753073A1 (fr) 2018-02-14 2019-02-13 Antenne de communication avec un transpondeur

Country Status (5)

Country Link
US (1) US20200358194A1 (fr)
EP (1) EP3753073A1 (fr)
CN (1) CN111684656A (fr)
DE (1) DE102018103288A1 (fr)
WO (1) WO2019158543A1 (fr)

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KR101746475B1 (ko) * 2016-04-08 2017-06-14 에이피위성 주식회사 스터브 기생소자를 갖는 적층형 세라믹 원형편파 안테나
CN106356620B (zh) * 2016-10-31 2018-11-06 东南大学 一种宽带极化可重构天线
CN206976565U (zh) * 2017-07-11 2018-02-06 深圳市鼎耀科技有限公司 双馈双频圆极化天线

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US20200358194A1 (en) 2020-11-12
WO2019158543A1 (fr) 2019-08-22
DE102018103288A1 (de) 2019-08-14
CN111684656A (zh) 2020-09-18

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