WO2015063036A1 - Antenne multifréquences plane - Google Patents

Antenne multifréquences plane Download PDF

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Publication number
WO2015063036A1
WO2015063036A1 PCT/EP2014/073021 EP2014073021W WO2015063036A1 WO 2015063036 A1 WO2015063036 A1 WO 2015063036A1 EP 2014073021 W EP2014073021 W EP 2014073021W WO 2015063036 A1 WO2015063036 A1 WO 2015063036A1
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WO
WIPO (PCT)
Prior art keywords
radiation electrode
radiation
frequency antenna
opening
planar multi
Prior art date
Application number
PCT/EP2014/073021
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German (de)
English (en)
Inventor
Michael Heiss
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
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.)
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Publication of WO2015063036A1 publication Critical patent/WO2015063036A1/fr

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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
    • H01Q9/0414—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
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—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

Definitions

  • Embodiments of the present invention relate to a planar multi-frequency antenna having a first and at least a second radiation electrode. Further embodiments relate to a method for feeding such a multi-frequency antenna.
  • a Mehrfreuqenzantenne is an antenna in which the radiation and electrical properties (radiation pattern, polarization, impedance, etc.) are not dependent on the frequency or at several frequencies are good or at least satisfactory. Thus, such an antenna can be operated at several frequencies.
  • antennas are also referred to as multi-frequency antennas in which the properties are the same or good or satisfactory only at certain discrete frequencies.
  • a planar antenna is constructed, for example, from a ground plane and at least one conductive surface (layer). In this case, at least one conductive surface (layer) is fed at least one point. This arrangement often has only a small bandwidth, so there is a need to design the planar antenna for the function in multiple frequency bands.
  • a multi-frequency antenna can be achieved by using multiple metallic layers [1, 2], by slits in a patch [3] or by short circuits. Also special shapes of the surfaces [4] or a loading of the surfaces (with parasitic elements) [5] can be used.
  • the present invention is therefore based on the object to provide a concept that makes it possible to create a compact planar multi-frequency antenna.
  • the object is achieved by a device according to claim 1 and a method according to claim 24.
  • Embodiments of the present invention provide a planar multi-frequency antenna comprising a first radiation electrode having a first surface and at least one second radiation electrode having a second surface.
  • the first surface has at least one opening, wherein the second radiation electrode is arranged in the opening, spaced from the first radiation electrode.
  • the first radiation electrode and the second radiation electrode are in a common metallization.
  • a method includes feeding the planar multi-frequency antenna with an electrical signal.
  • the present invention utilizes the effect that the antenna can be operated as a multi-frequency antenna by arranging a plurality of radiant electrodes of planar design.
  • the arrangement of the second radiation electrode in the first radiation electrode enables a compact construction of the multi-frequency antenna.
  • planar multi-frequency antennas offer great design possibilities with regard to the design of the area, as a result of which the antenna can be tuned to the frequency bands in which it is to be operated. Since the antenna is mounted on a solid support, the antennas are robust against mechanical influences and at the same time inexpensive to manufacture.
  • all the radiation electrodes of the multi-frequency antenna can be in the common metallization layer. This results in a simple and compact design for the multi-frequency antenna.
  • the single-layer design also reduces the emission of surface waves.
  • the first radiation electrode may be configured in the planar multi-frequency antenna for the lowest frequency band. Because the lowest frequency band is the has the longest wavelength and the wavelength is preferably tuned to the length of the antenna in order to optimize the gain, preferably the largest radiation electrode for the lowest frequency band is designed and operated in this lowest frequency band.
  • the planar multi-frequency antenna may include a feed network electrically connecting a feed point and at least one of the radiation electrodes.
  • the feed network can be arranged in the opening and can connect at least the first radiation electrode and the second radiation electrode to one another.
  • the feed network may be configured to provide individual impedance matching for the first radiation electrode and the second radiation electrode. It can be formed on at least one of the radiation electrodes and a plurality of feeding points. Feeding the radiation electrodes via a feed point simplifies the layout of the planar multi-frequency antenna. By arranging the feeding point in the opening, in addition, the multi-frequency antenna can be made more compact.
  • the feed network allows individual impedance matching between the feed point and the radiation electrodes. By an individual impedance matching of the feed network between the feed point and the radiation electrode, the adaptation of the antenna can be optimized.
  • the opening or the radiation electrodes can be formed as a rectangle.
  • the second radiation electrode may be placed centrally in the opening.
  • An opening formed as a rectangle or radiation electrodes formed as a rectangle allow a simple construction and calculation of the configuration of the multi-frequency antenna. In this case, a rectangular area has hardly any negative effects on the radiation behavior of the radiation electrode.
  • the central placement of the second radiation electrode typically improves a radiation characteristic of the multi-frequency antenna.
  • the opening may be completely within one half of the area of the first radiation electrode. By the arrangement of the opening in one half the area results in a higher gain or better emission characteristics of the multi-frequency antenna.
  • the opening may not extend beyond two straight lines that extend through a centroid and bound one quarter of the total area of the first radiation electrode. Through the lines, the opening is limited to at most a quarter of the area of the first radiation electrode. The limitation of the opening in the radiation electrode to a quarter of the area of the first radiation electrode increases the gain of Mehrfrequenenzantenne or additionally improves their radiation properties.
  • the first radiation electrode may be designed such that a distance (A) between an outer boundary of the first radiation electrode and the opening amounts to at least 0.25% of a maximum extent of the first radiation electrode.
  • the second radiation electrode may have a distance (B) from the first radiation electrode which corresponds to at least 0.5% of a maximum extension of the first radiation electrode.
  • the area of the second radiation electrode may have a size smaller than 40% of the area of the first radiation electrode. The spacing of the radiation electrodes precludes conductive connections and thus short circuits between the radiation electrodes.
  • the described design rules can also optimize the gain or the emission characteristics of the planar multi-frequency antenna.
  • a plurality of radiation electrodes may be arranged in the opening, wherein the radiation electrodes have a distance (C) from each other.
  • the distance (C) between the radiation electrodes in the opening may be at least 0.5% of a largest dimension, the largest of the second radiation electrodes.
  • a ground plane may be arranged plane-parallel to the first radiation electrode. In this case, the ground plane should not project beyond an outer circumference of the first radiation electrode.
  • a ground plane provides a solid reference area under the radiation electrode which enhances the radiation performance of the multi-frequency antenna.
  • at least one electrical component can be integrated in the opening or at least one slot can be made in at least one of the radiation electrodes. By integrating at least one component in the opening, a compact design of the radiation electrode is achieved.
  • the at least one component can serve, for example, to tune the feed network.
  • the introduction of slots in the radiation electrodes serves to tune the radiation electrodes to a specific frequency band and allows, for example, a circular polarization of the antenna.
  • Fig. 1 is a perspective view of an embodiment planar multi-frequency antenna
  • 2 shows an embodiment of a multi-frequency antenna with a feed network
  • 3 shows an embodiment of a multi-frequency antenna having a plurality of second radiation electrodes
  • FIG. 4 shows an embodiment of a multi-frequency antenna having a plurality of second radiation electrodes and a plurality of feed points
  • FIG. 5 shows an embodiment of a multi-frequency antenna, in which the second radiation electrode has a further opening in which a third radiation electrode is arranged;
  • FIG. 6 shows an embodiment of a multi-frequency antenna, with a third radiation electrode and a plurality of feed points.
  • FIG. 7 shows a further embodiment of a multi-frequency antenna with a feed network
  • FIG. 8a shows an embodiment of a multi-frequency antenna, wherein the opening is arranged completely in one half of the first surface of the first radiation electrode
  • FIG 8b shows an embodiment of a multi-frequency antenna, wherein the opening is arranged in a quarter of the first radiation electrode.
  • FIG. 9 shows a further embodiment of a multi-frequency antenna, with a plurality of second radiation electrodes
  • Fig. 10 shows a perspective view of a planar multi-frequency antenna 10, according to an embodiment of the present invention.
  • the multi-frequency antenna is designated in its entirety by 10.
  • the planar Mehrfrequenantenne 10 includes a first radiation electrode 12 having a first surface Ai, wherein the first surface Ai has an opening 14. In the opening 14, spaced from the first radiation electrode 12, a second radiation electrode 16 having a second surface A 2 is arranged. The first radiation electrode 12 and the second radiation electrode 16 lie in a common metallization layer 18.
  • the first radiation electrode 12 and the second radiation electrode 16 are, for example, planar conductive electrodes, which may also be referred to as a patch.
  • Planar refers to the spatial arrangement of points in a plane. The points are then plan, if they lie in a plane.
  • the radiation electrodes 12, 16 can also lie in a curved plane and, for example, form a section of a lateral surface of a circular cylinder.
  • the radiation electrodes 12, 16 are essentially formed as rectangles.
  • the radiation electrodes 12, 16 may be designed to allow the radiation of a dual or circularly polarized electromagnetic wave.
  • the radiation electrodes 12, 16 may have any shape in some embodiments. Frequently used are: Rectangles, circles, triangles, hexagons, octagons, fractals and flush-filling curves ("Space-Filling") [7].
  • the first and second radiation electrodes 12, 16 are rectangular. But it can also be used, for example, rectangular radiation electrodes, in which, for example, at least one corner is "cut off", d. H. the 90 ° angle of the corner has been replaced by two 135 ° angles.
  • the first radiation electrode 12 comprises, as mentioned, the area Ai.
  • the surface Ai has an opening 14.
  • the opening 14 represents a region enclosed by the surface A1, in which no electrically conductive material, the first Radiation electrode 12 is present.
  • the opening 14 lies in the same plane, ie in the same metallization layer 18 as the first radiation electrode 12.
  • the opening 14 may be formed as a rectangle. However, other forms for the design of the opening 14 are possible. For example, the opening 14 may be formed as a circle, triangle, hexagon, octagon or fractal. The formation of the opening 14 depends on the frequency band in which the multi-frequency antenna 10 is operated and other factors.
  • a second radiation electrode 16 can be arranged in the opening 14.
  • the second radiation electrode 16 may be spaced from the first radiation electrode 12.
  • the first radiation electrode 12 and the second first radiation electrode 16 are electrically insulated from one another.
  • no conductive signal exchange between the two radiation electrodes 12, 16 take place.
  • the spacing allows the use of the two radiation electrodes 12, 16 in different frequency bands. The different frequency bands can be offset in time or used simultaneously.
  • a plane in which patches, electrodes or conductor surfaces are arranged is designated as metallization layer 18 in the planar multi-frequency antenna 10.
  • all the radiation electrodes 12, 16 may lie in a common metallization layer 18.
  • all the radiation electrodes 12, 16 are arranged in one layer in a common metallization layer 18.
  • the single-layer structure of the multi-frequency antenna 10 for example, surface waves can be reduced or even completely prevented. By reducing the surface waves, the gain of the multi-frequency antenna 10 is increased, or the efficiency is improved.
  • the gain or antenna gain includes the directivity and efficiency of an antenna.
  • the profit thus denotes the ratio of the radiated radiant power density, compared with a lossless reference antenna with the same power supply, which usually has a non-directional radiant intensity.
  • the first radiation electrode may be designed for the lowest frequency band.
  • the first radiation electrode 12 has the greater extent with respect to the second radiation electrode 16.
  • a frequency band should be used whose wavelength ⁇ corresponds approximately to twice a side length of the areas Ai or A 2 , ie the longitudinal side of the first or second radiation electrode 12, 16 has a length of approximately K / 2 on.
  • the wavelength ⁇ is greater the lower the frequency.
  • the larger the size of the antenna the lower the frequency at which the antenna can be operated optimally.
  • multi-frequency antenna consists of a patch antenna (first radiation electrode 12) for the lowest frequency band. At least one opening (14) is introduced into the patch (first radiation electrode 12) of the antenna (multi-frequency antenna 10). In each introduced opening 14, a further patch (second radiation electrode 16) for a higher frequency can now be introduced. This creates a structure in which there is a patch (radiation electrode) in another patch (radiation electrode).
  • FIG. 2 shows another embodiment of the planar multi-frequency antenna 10 with the first radiation electrode 12 and the second radiation electrode 16, which is arranged in the opening 14 of the first radiation electrode 12.
  • the multi-frequency antenna (patch antenna) is designed for two frequencies.
  • the lower frequency radiation electrode (patch) is housed in the aperture 14 of a higher frequency radiation electrode (patches).
  • the position and size of the radiation electrodes 12, 16 (patches) and the openings 14 is arbitrary.
  • the multi-frequency antenna 10 further comprises a feed network 20 which connects a feed point 22 and at least one of the radiation electrodes 12, 16 electrical.
  • the first radiation electrodes 12 and the second radiation electrodes 16 are connected to each other, wherein the feed network 20 is designed to provide individual impedance matching for the first radiation electrode and the second radiation electrode.
  • the electrical connection between the feeding point 22 and the radiation electrodes 12, 16 can be effected directly, as shown in FIG. 2, or via electrical elements with specific electrical properties.
  • the electrical elements can have capacitive or inductive conduction characteristics and can be designed, for example, as capacitors or coils.
  • the electrical elements can be used to adapt the impedance, for example, between a signal source and one of the radiation electrodes 12, 16. Due to the feed network 20 (the matching circuit), however, the introduced patch (second radiation electrode 16) will only have a small size.
  • the feeding point 22 may be, for example, a circular surface or a different shaped structure to which a connection of the feed network 20 is contacted, for example, by means of a needle tip or to which a coaxial cable is connected to the feed point.
  • the feeding point 22 may also comprise a coupling element, such as a plug, with which the electrical signal of the signal source is transmitted to the multi-frequency antenna.
  • Any source suitable for the operation of a planar multi-frequency antenna may be used as the signal source.
  • the signal source generates an electromagnetic signal which is preferably transmitted via an electrical current conductive connection to the feed point.
  • the multi-frequency antenna 10 shown in embodiments can also be used as a planar multi-frequency antenna 10 for receiving electrical signals.
  • electromagnetic signals from the multi-frequency antenna 10th received and led over the feed network 20 to the feed point 22.
  • the signals can be tapped and forwarded to a receiving unit.
  • the receiving unit may be, for example, a tuner or a comparable signal processor. It is also possible to use the multi-frequency antenna, at the same time or in short offset intervals, both as a transmitter and as a receiver of electromagnetic waves or signals.
  • the feed network may be located in the opening. As shown in FIG. 2, the feed network 20 may be disposed in the opening 14 between the first radiation electrode 12 and the second radiation electrode 16. In this case, the feed network 20 may be arranged to feed both the first radiation electrode 12 and the second radiation electrode 14 from a common feed point 22.
  • the feed point 22 can preferably be arranged centrally between the first 12 and the second radiation electrode 16 or, as shown in FIG. 2, asymmetrically between the two radiation electrodes 12, 16.
  • FIG. 3 shows a further exemplary embodiment of the planar multi-frequency antenna 10 with the first radiation electrode 12 and the opening 14 in the area A 1 of the first radiation electrode 12.
  • a plurality of second radiation electrodes 16 can be arranged in the opening 14.
  • the patch antenna (multi-frequency antenna 10) is suitable for multiple frequencies.
  • the position and size of the radiation electrodes 12, 16 (patches) and the openings 14 are arbitrary.
  • the multi-frequency antenna 10 can have up to n second radiation electrodes 16i to 16 n, where n is a natural number greater than or equal to one, n>. 1
  • n is a natural number greater than or equal to one, n>. 1
  • three second radiation electrodes 16 - 1 , 16 2 , 16 3 are arranged in the opening 14.
  • the first radiation electrode 12 and the second radiation electrodes 16 1 , 16 2 , 16 3 can be fed via the feed network 20 are fed by a common feed point 22.
  • the feed point 22 can be arranged centrally in the feed network 20.
  • the first radiation electrode 12 with the surface Ai has the opening 14.
  • three second radiation electrodes 16 ⁇ , 16 2 , I 63, spaced from the first radiation electrode 12, are arranged.
  • the second radiation electrodes 16 ⁇ 16 2 , 16 3 can be connected to a signal source via a feed network 20, for example.
  • the feed network 20 has a plurality of feed points 22.
  • the feeding points 22 are electrically connected to the radiation electrode 12, 16 1 , 16 2 , 16 3 .
  • the feeding points 22 may be located 16 3 on one of the radiation electrodes 12, 61 I, 16 2,.
  • the Speisungs- points 22 may also be in the opening 14 of the first radiation electrode be located 12 and via electrically conductive connections to the radiation electrodes 12, 61 I, 16 2, be connected I6. 3
  • I 61, 16 2 For example, to various signals to the radiation electrodes 12, I 61, 16 2 to output 16 3 or to receive from these, are shown in Figure 4 embodiment of the radiation electrodes 12, I 61, 16 2, 16 3 or in Feeding network 20 a plurality of feed points 22 formed. Through the feed points 22 can be electrically transmitted signals from a signal source to the multi-frequency antenna 10 or received by this.
  • Each patch (radiation electrodes 12, 16 ⁇ , 16 2 , 16 3 ) can be provided with its own supply or all patches (radiation electrodes 12, I 61, 16 2 , 16 3 ) can be connected to each other via a feed network.
  • a dual or circular polarization can be achieved with each patch (radiation electrodes 12, I 61, 16 2 , 16 3 ) and a corresponding feed (eg several feed positions).
  • One possible feed is to use a coaxial contact (sample) for each patch (radiation electrode 12, 161, 16 2 , 16 3 ).
  • first radiation electrode 12 outermost patch
  • second radiation electrodes 16i, 16 2 , 16 3 connections to the smaller Patches
  • second radiation electrodes 16i, 16 2 , 16 3 connections to the smaller Patches
  • second radiation electrodes 16i, 16 2 , 16 3 connections to the smaller Patches
  • second radiation electrodes 16 1, 16 2 , 16 3 coaxial terminals for the smaller patches
  • second radiation electrodes 16 1, 16 2 , 16 3 coaxial terminals for the smaller patches
  • second radiation electrodes 16 1, 16 2 , 16 3 Different methods of feeding the radiation electrodes are possible.
  • the radiation electrodes can be powered separately as shown in Figures 4 and 6, or the radiation electrodes (patches) are fed together, as shown in Figure 3.
  • Different feeds are possible, for example the first radiation electrode (outermost patch) could be provided with a microstrip line (microstrip line) and a second radiation electrode (inner patch) with a conical slot feed (Taperd-Siot feed).
  • any combination of different feeds is possible
  • the multi-frequency antenna 10 has, for example, a plurality of second radiation electrodes 16.
  • the further opening 24, like the opening 14 in the first radiation electrode 12, can have any desired shape and have the same functions and advantages as the opening 14 in the first radiation electrode 12.
  • Several patches (radiation electrodes 12, 16, 26) can also be interleaved become. In this case, the variants of Figure 3 and Figure 5 can be combined as desired.
  • At least one third radiation electrode 26, spaced from the second radiation electrode 16 may be arranged.
  • the third radiation electrode 26 may be configured in shape and material as the first or second radiation electrode 12, 16 and also have the same functions and advantages as the first 12 or second radiation electrode 16. Die One or more third radiation electrodes 26 are preferably designed for a higher frequency band than the second radiation electrode 16.
  • the multi-frequency antenna 10 by at least one opening in the third radiation electrode further nesting of radiation electrodes of the multi-frequency antenna 10 is possible. Corresponding interleaves through openings in the radiation electrodes can be continued as desired.
  • 6 shows an exemplary embodiment of the multi-frequency antenna 10, in which the second radiation electrode 16 has a further opening 24 in which the third radiation electrode 26 is arranged.
  • the embodiment comprises feed points 22 which are arranged on the first radiation electrode 12, the second radiation electrode 16, and the third radiation electrode 26.
  • FIG. 7 shows a further exemplary embodiment of the multi-frequency antenna 10.
  • the first surface of the first radiation electrode 12 has the opening 14.
  • the opening 14 has the shape of two adjacent rectangles.
  • the second radiation electrode 16 from the first radiation electrode 12 spaced apart, arranged.
  • an embodiment of the feed network 20 is arranged in the opening.
  • the food network 20 may have a feed point 22 and an electrical connection between the feed point 22 and the first and second radiation electrodes 12, 16.
  • the first and second radiation electrodes 12, 16 can be connected, for example, to an electrical signal source.
  • the feed network 20 can be designed to effect individual impedance adjustments for the first radiation electrode 12 and the second radiation electrode 16 or to tune or set signal launching distances. influences. Due to the configuration of the feed network 20, for example, an adaptation of the line impedance to the multi-frequency antenna 10 or an adjustment of the impedance of the feed to the impedance of the radiation electrode can be carried out.
  • FIG. 8 a shows an exemplary embodiment of the multi-frequency antenna 10, wherein the opening 14 is arranged completely in one half of the first surface A-1 of the first radiation electrode 12.
  • the second radiation electrode 16, with the second surface A 2 is disposed in the opening, spaced from the first radiation electrode 12.
  • the opening 14 may be located entirely within one half of the first surface A1 of the first radiation electrode 12.
  • half of the first area Ai can be determined by a straight line which is laid through a centroid of the first radiation electrode 12.
  • FIG. 8 b shows an exemplary embodiment of a multi-frequency antenna 10, wherein the opening 14 is arranged in a quarter of the first radiation electrode 12.
  • the opening 14 in the first radiation electrode 12 does not extend beyond two straight lines, which run through a centroid, and which delimit a quarter of the total area Ai of the first radiation electrode 12.
  • the opening 14 is limited to at most a quarter of the area Ai of the first radiation electrode 12.
  • the second Strahlungselekt- is arranged 16 with the surface A 2 .
  • the first radiation electrode 12 can be designed such that a distance (A) between an outer boundary of the first radiation electrode 12 and the opening 14 is at least 0.25% of a maximum extension of the first radiation electrode.
  • the distance (A) on the first radiation electrodes 12 (the large patch) can be at least 0.5% of the longer side length of the first radiation electrode 12 (of the largest patch ) amount.
  • the second radiation electrode 16 has a distance B from the first radiation electrode 12.
  • the distance B should correspond to at least 0.5% of the largest extent of the first radiation electrode 12.
  • the distance to the first radiation electrode 12 (large patch) should be at least 1% of the largest side length of the first radiation electrode 12 (of the largest patch).
  • the feed points 22 shown in FIGS. 8A and 8B are arranged, for example, centrally on a longitudinal side of the first radiation electrode 12 or on a longitudinal side of the second radiation electrode 16.
  • the area A 2 of the second radiation electrode 16 may have a size smaller than 40% of the area Ai of the first radiation electrode 12. By an aforementioned area division, a good gain of the multi-frequency antenna 10 results Good multi-frequency characteristics.
  • the second radiation electrode 16 may be placed centrally in the opening 14 in one embodiment of the planar multi-frequency antenna 10. This results in an optimized radiation behavior of the multi-frequency antenna 10.
  • FIG. 9 shows another embodiment of the planar multi-frequency antenna 10, wherein a plurality of second radiation electrodes 16 are arranged in the opening 14.
  • the second radiation electrodes 16i, 16 2 in this case have a distance C to each other.
  • the distance C is a distance between any two second radiation electrodes 16 i to 16 n at an arbitrary distance. 4 073021 bigen location of the second radiation electrodes 16i to 16 n .
  • the distance C between the second radiation electrodes 16 i to 16 n in the opening 14 should amount to at least 0.5% of a largest dimension, the largest of the second radiation electrodes 16.
  • a rectangular configuration of the first and second radiation electrodes 12, 16 and the opening 14 as shown for example in FIG.
  • the distance of the individual second radiation electrodes should, for example, 16i, 16 2 (patches) be at least 1% of the largest of the second radiation electrodes 16 (of the largest patch).
  • a ground plane may be arranged plane-parallel to the first radiation electrode. In a preferred embodiment, the ground plane does not project beyond an outer periphery of the first radiation electrode.
  • the ground plane can have all sorts of shapes, commonly used are: rectangles, circles, triangles, hexagons, octagons, fractals, and space-filling curves [7].
  • different matching circuits can be integrated in the opening of the largest patch (first radiation electrode).
  • at least one electrical component can be integrated in one of the openings of the radiation electrodes.
  • an RFID transponder with a microstrip antenna microwavestrip antenna or planar multi-frequency antenna
  • the electrical component can also be used for example for balancing or for impedance matching of the feed network.
  • the radiation behavior of the planar multi-frequency antenna can be optimized.
  • At least one slot may be introduced in at least one of the radiation electrodes (patches).
  • the radiation electrodes can be fed separately, as shown in FIGS. 4 and 6, or the radiation electrodes (patches) are fed together, as shown in FIG.
  • Different feeds are possible, for example the first radiation electrode (the outermost patch) could be provided with a microstrip line (microstrip line) and a second radiation electrode (inner patch) with a conical slot feed (Taperd-Siot feed).
  • any combination of different feeds is possible.
  • Each type of power supply can, as shown in FIG. 7, be provided with any desired matching circuit.
  • One of the key features of the embodiments is the creation of a planar multi-frequency antenna (multi-frequency patch antenna) which integrates the radiation patches for the higher frequency bands into the radiation electrode (patch) for the lowest frequency band.
  • the multi-frequency antenna e.g. Microstrip lines (microstrip lines), load (loading) of the patch or slots are used.
  • the planar multi-frequency antenna can also work in several frequency bands at the same time.
  • FIG. 10 shows a microstrip antenna (microstrip antenna), wherein a multi-frequency antenna is achieved by using a plurality of metallic layers.
  • the planar multi-frequency antenna (patch antenna) is composed of a ground plane 28 and at least one conductive layer 30. It is also possible in embodiments to use openings for the loading of the radiation electrodes (patches). Likewise, in embodiments by two radiation electrodes (patches) side by side [6] a planar multi-frequency antenna (mother frequency patch antenna) are created.
  • the use of only two metallic layers was in the foreground.
  • the multi-frequency antenna should not be larger than the first radiation electrode (the largest patch) for the lowest frequency. If the opening is made larger than shown in particular in the embodiments of Figures 8a and 8b, a reduction of the antenna gain takes place. If this does not affect the application, the opening can be made larger than shown in Figures 8a and 8b.
  • aspects have been described in the context of a device, it will be understood that these aspects also constitute a description of the corresponding method such that a block or device of a device is also to be understood as a corresponding method step or feature of a method step. Similarly, aspects described in connection with or as a method step also represent a description of a corresponding block or detail or feature of a corresponding device.
  • Some or all of the method steps may be performed by a hardware device (or using a hardware device). Apparatus), such as a microprocessor, a programmable computer, or an electronic circuit. In some embodiments, some or more of the most important method steps may be performed by such an apparatus.

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Abstract

L'invention concerne une antenne multifréquences plane (10) qui comprend une première électrode de rayonnement (12) possédant une première surface (A1) et au moins une seconde électrode de rayonnement (16) possédant une seconde surface (A2). La première surface (A1) comporte au moins un orifice (14), la seconde électrode de rayonnement (16) étant disposée dans l'orifice (14) de la première électrode de rayonnement (12). Selon l'invention, la première électrode de rayonnement (12) et la seconde électrode de rayonnement (16) se trouvent dans une couche de métallisation commune (18).
PCT/EP2014/073021 2013-10-30 2014-10-27 Antenne multifréquences plane WO2015063036A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013222139.8 2013-10-30
DE201310222139 DE102013222139A1 (de) 2013-10-30 2013-10-30 Planare Mehrfrequenzantenne

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Publication Number Publication Date
WO2015063036A1 true WO2015063036A1 (fr) 2015-05-07

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WO (1) WO2015063036A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109088178A (zh) * 2018-08-28 2018-12-25 昆山睿翔讯通通信技术有限公司 一种移动通讯终端双极化毫米波天线系统
CN109884828A (zh) * 2019-04-17 2019-06-14 京东方科技集团股份有限公司 显示面板及移动终端

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018073701A1 (fr) 2016-10-17 2018-04-26 Director General, Defence Research & Development Organisation (Drdo) Antenne double bande à ouverture partagée à couche unique

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6118406A (en) * 1998-12-21 2000-09-12 The United States Of America As Represented By The Secretary Of The Navy Broadband direct fed phased array antenna comprising stacked patches
WO2003052869A1 (fr) * 2001-12-19 2003-06-26 Harada Industry Co., Ltd Antenne multi-bande en bande large
US20030122718A1 (en) * 2001-12-27 2003-07-03 Shyh-Tirng Fang Dual-frequency planar antenna
JP2004208226A (ja) * 2002-12-26 2004-07-22 Alps Electric Co Ltd ２バンド共用パッチアンテナ
US20090140927A1 (en) * 2007-11-30 2009-06-04 Hiroyuki Maeda Microstrip antenna
CN103151606A (zh) * 2013-02-04 2013-06-12 河北科技大学 一种嵌套式Koch分形北斗双频微带天线

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6181281B1 (en) * 1998-11-25 2001-01-30 Nec Corporation Single- and dual-mode patch antennas
FR2826186B1 (fr) * 2001-06-18 2003-10-10 Centre Nat Rech Scient Antenne mulitfonctions integrant des ensembles fil-plaque
JP3420233B2 (ja) * 2001-11-28 2003-06-23 日本アンテナ株式会社 複合アンテナ
JP2003188636A (ja) * 2001-12-17 2003-07-04 Tdk Corp 複合アンテナ
JP2004007559A (ja) * 2002-04-25 2004-01-08 Matsushita Electric Ind Co Ltd 多共振アンテナ、アンテナモジュールおよび多共振アンテナを用いた無線装置
WO2003105278A1 (fr) * 2002-06-11 2003-12-18 日本板硝子株式会社 Antenne en nappe et procede de conception
JP2006033652A (ja) * 2004-07-21 2006-02-02 Japan Radio Co Ltd マルチバンドアンテナ
US7253770B2 (en) * 2004-11-10 2007-08-07 Delphi Technologies, Inc. Integrated GPS and SDARS antenna
WO2007060782A1 (fr) * 2005-11-24 2007-05-31 National University Corporation Saitama University Antenne microruban multifréquence
KR100781933B1 (ko) * 2005-12-16 2007-12-04 주식회사 이엠따블유안테나 단일 급전 단층 2 중 대역 원편파 안테나
US7427957B2 (en) * 2007-02-23 2008-09-23 Mark Iv Ivhs, Inc. Patch antenna
KR100952979B1 (ko) * 2007-11-20 2010-04-15 한국전자통신연구원 갭필러 시스템에서의 다중 대역 안테나
US8830128B2 (en) * 2011-06-14 2014-09-09 Kathrein Automotive North America, Inc. Single feed multi-frequency multi-polarization antenna
DE102011122039B3 (de) * 2011-12-22 2013-01-31 Kathrein-Werke Kg Patch-Antennen-Anordnung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6118406A (en) * 1998-12-21 2000-09-12 The United States Of America As Represented By The Secretary Of The Navy Broadband direct fed phased array antenna comprising stacked patches
WO2003052869A1 (fr) * 2001-12-19 2003-06-26 Harada Industry Co., Ltd Antenne multi-bande en bande large
US20030122718A1 (en) * 2001-12-27 2003-07-03 Shyh-Tirng Fang Dual-frequency planar antenna
JP2004208226A (ja) * 2002-12-26 2004-07-22 Alps Electric Co Ltd ２バンド共用パッチアンテナ
US20090140927A1 (en) * 2007-11-30 2009-06-04 Hiroyuki Maeda Microstrip antenna
CN103151606A (zh) * 2013-02-04 2013-06-12 河北科技大学 一种嵌套式Koch分形北斗双频微带天线

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
1. SARKAR; P. P. SARKAR; S. K. CHOWDHURY: "A Novel Compact, Microstrip Antenna With Multifrequency Operation", INTERNATIONAL SEMINAR/WORKSHOP ON DIRECT AND INVERSE PROBLEMS OF ELECTROMAGNETIC AND ACOUSTIC WAVE THEORY (DIPED) 2009, September 2009 (2009-09-01), pages 147 - 151, XP031558241
F. CROQ; D. M. POZAR: "Multifrequency Operation of Microstrip Antennas Using Aperture Coupled Parallel Resonators", IEEE TRANSACTION ON ANTENNAS AND PROPAGATION, vol. 40, no. 11, November 1992 (1992-11-01), pages 1367 - 1374, XP000360527, DOI: doi:10.1109/8.202714
J. ANGUERA; C. PUENTE; C. BORJA: "Microwave and Opt. Tech. Letters", vol. 3, June 2001, WILEY, article "A Procedure to Design Stacked Microstrip Patch Antennas Based on a Simple Network Model"
J. MONTERO-DE-PAZ; E. UGARTE-MUNOZ; F. J. HERRAIZ-MARTINEZ; D. SEGOVIA-VARGAS: "Multifrequency Single Patch Antennas Loadad with Split Ring Resonators", PROCEEDINGS OF THE FOURTH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP, 2010
S. R. ANOOP; K.K. AJAYAN; M. R. BAIJU1; V. KRISHNAKUMAR. V: "Multiband Behavioural Analysis of a Higher Order Fractal Patch Antenna", INTERNATIONAL CONGRESS ON ULTRA MODERN TELECOMMUNICATIONS AND CONTROL SYSTEMS AND WORKSHOPS (ICUMT) 2010, October 2010 (2010-10-01), pages 823 - 827, XP031841011
Y. PANG; B. GAO: "Novel Compact Multi-frequency Microstrip Patch Antenna", 2003 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, vol. 4, June 2003 (2003-06-01), pages 166 - 169, XP010650864, DOI: doi:10.1109/APS.2003.1220147
Z.-J. TANG; Y.-G .HE: "Broadband microstrip antenna with U and T slots for 2.45/2.41 GHz RFID tag", ELECTRONICS LETTERS, vol. 45, no. 18, August 2009 (2009-08-01), pages 926 - 928, XP006033721, DOI: doi:10.1049/EL:20090387

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109088178A (zh) * 2018-08-28 2018-12-25 昆山睿翔讯通通信技术有限公司 一种移动通讯终端双极化毫米波天线系统
CN109088178B (zh) * 2018-08-28 2024-01-09 昆山睿翔讯通通信技术有限公司 一种移动通讯终端双极化毫米波天线系统
CN109884828A (zh) * 2019-04-17 2019-06-14 京东方科技集团股份有限公司 显示面板及移动终端
CN109884828B (zh) * 2019-04-17 2022-01-11 京东方科技集团股份有限公司 显示面板及移动终端

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