EP3025395A1 - Réseau d'antennes à large bande - Google Patents

Réseau d'antennes à large bande

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Publication number
EP3025395A1
EP3025395A1 EP14733091.4A EP14733091A EP3025395A1 EP 3025395 A1 EP3025395 A1 EP 3025395A1 EP 14733091 A EP14733091 A EP 14733091A EP 3025395 A1 EP3025395 A1 EP 3025395A1
Authority
EP
European Patent Office
Prior art keywords
antenna
radiator
radiators
antenna array
additional
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.)
Granted
Application number
EP14733091.4A
Other languages
German (de)
English (en)
Other versions
EP3025395B1 (fr
Inventor
Maximilian GÖTTL
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.)
Kathrein SE
Original Assignee
Kathrein Werke KG
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 Kathrein Werke KG filed Critical Kathrein Werke KG
Publication of EP3025395A1 publication Critical patent/EP3025395A1/fr
Application granted granted Critical
Publication of EP3025395B1 publication Critical patent/EP3025395B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H01Q5/10—Resonant antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • 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

Definitions

  • the invention relates to a broadband antenna array according to the preamble of claim 1.
  • Antenna arrays are used, for example, in mobile radio base stations. They serve to send and receive, so to handle the communication with a variety of staying in the respective image cell cell subscribers.
  • the antennas can have a suitable directional characteristic for this purpose.
  • the size of the mobile radio cell can be changed and / or adjusted, inter alia, by different setting of a lowering angle (down-tilt) in its directional characteristic.
  • a generic antenna array comprises, for example, two antenna columns, which usually extend in the vertical direction predominantly in the vertical direction and are arranged side by side in the horizontal direction. There may be other such pairs be provided by antenna columns in the context of the antenna array.
  • each antenna column a plurality of radiator groups are located one above the other in the vertical direction, wherein each radiator group comprises at least one radiator.
  • radiators can have a simple dipole structure or consist of a crossed dipole or a dipole square.
  • vector dipoles as known, for example, from WO 00/39894 A1 or WO 2004/100315 A1 are also known.
  • patch emitters should also be mentioned which can radiate simply or dual-polarized.
  • emitters which are used for array antennas, thus for example for dielectric emitters, aperture emitters, slot emitters etc. Restrictions do not exist in this respect.
  • Monoband antennas as well as dual-band antennas or multi-band antennas have become known in the prior art. Such dual-band antennas often operate in the so-called 900 MHz and 1800 MHz or 1900 MHz band, for example, in frequency ranges from about 800 MHz to 1000 MHz on the one hand and 1700 MHz to 2200 MHz on the other.
  • emitters are then provided which radiate, for example, in a lower frequency band around 900 MHz on the one hand and in addition emitters which emit in a higher frequency band, for example in a 1800 MHz or 1900 MHz band.
  • broadband radiators which are used in particular in a high-frequency range, that is, for example, in a range of more than 1700 MHz to, for example, 2700 MHz. These are therefore broadband radio frequency emitters which can transmit and / or receive in a wide continuous frequency band.
  • broadband antenna arrays which are operable in a range of 1710 MHz to 2690 MHz or, for example, in a range of 698 MHz to 960 MHz
  • broadband radiators can be used to cover continuous frequency ranges which, for example, in the former case, are a frequency - Can cover spectrum of 1100 MHz and in the latter case of 829 MHz.
  • radiators, radiator devices and / or radiator groups in at least two antenna gaps or more it is thus possible using such broadband ger radiators can be realized much higher data rates in mobile communications.
  • the individual radiators, radiator devices and / or radiator groups in the individual antenna columns are generally operated in two mutually perpendicular polarization planes, these polarization planes preferably at an angle of + 45 ° and -45 ° relative to the horizontal or vertical are aligned, that is send and / or received in these two orthogonal aligned polarization planes or are also circularly or elliptically circularly polarized right- or left-handed circularly.
  • the problem arises that the column spacing between two adjacent columns of the antenna array is predefined by the mechanical structure and the mechanical construction of the entire antenna arrangement.
  • the disadvantage here is that despite the fixed mechanical gap distance, the electrical gap between the columns provided in the individual columns or radiator groups increases with increasing frequency.
  • an improvement in the suppression of the sidelobes by optimizing the column spacing is made possible by the fact that additional radiators are provided in the at least two antenna columns arranged with a fixed mechanical gap spacing, ie in each case at least an additional radiator, which is operated only for a higher frequency band or frequency subband in the broadband frequency spectrum.
  • additional or additional radiator groups are arranged in a smaller (adapted for the higher frequencies) column spacing to each other, compared with the radiator or column spacing, with which the individual radiators and radiator groups in the individual antenna columns of Antenna arrays are otherwise arranged.
  • These additional radiators for the high-frequency band or subband or for the higher frequency range or frequency subrange are fed via filters which serve as high pass.
  • the broadband, in the antenna array provided in an antenna column radiators or groups of radiators and provided in the respective antenna column additional radiator in the contrast high-frequency sub-spectrum are fed together, optionally with the interposition of phase shifter devices o- of -Glieder for setting a different down-tilt angle.
  • the aforementioned filter for the additional radiators acts as a high-pass filter and incorporates additional radiators, for the higher frequencies only at the higher frequencies with a correspondingly adjustable or predetermined power distribution.
  • this leads to a more constant electrical emitter spacing over the entire frequency band being achieved with a fixed mechanical emitter spacing for the broadband emitters, that is to say that it does not vary so much for the different frequencies in the entire broadband frequency spectrum, as a result of which the undesired Side lobes are significantly reduced.
  • the mechanical gap spacing between two antenna gaps for example between 0.2 and 1.5 of the wavelength, can be used. speaking wavelength is related to the center frequency and the center of the respective radiators covering the entire broadband frequency range. This range is preferably between 0.4 to. 0.8 wavelengths.
  • the broadband radiators are radiators having a relative bandwidth of, as mentioned, 25% or more, preferably at least 35%, 40% or even 45%. Relative bandwidths up to 50% and more are quite possible and conceivable.
  • the invention is particularly suitable for high-frequency broadband antenna arrays.
  • the invention can therefore be used preferably in a range above about 1700 MHz.
  • the supply of the high-frequency additional radiator which are operated only a high frequency subband, can be selected or set differently, in particular in relation to the broadband base emitters. So all radiators can be fed with the same power. It is also possible, however, that, for example, the additional radiators radiating in a high subfrequency band are fed with twice as much power as the remaining beams. sis spotlight. This also allows different electrical gap distances pretend and generate.
  • the antenna arrays can be designed both for the transmitting and for the receiving operation.
  • individual emitters and emitter groups can be provided only for the transmitting and other emitters and emitter groups only for the receiving operation.
  • the emitters or emitter groups provided in each case for the transmission as well as for the reception mode can have the same design or else be constructed differently. This also applies to the number of antenna columns used.
  • DE 10 2007 060 083 A1 discloses a multi-slit multiband antenna array as known, which comprises, for example, two columns.
  • this prior publication does not deal with the suppression of side lobes in broadband antenna devices with a relative bandwidth of, for example, over 25%, in particular of, for example, over 30% or even more than 40%, but this is a dual band or multiple band.
  • a band antenna arrangement in which the radiator means are arranged for a lower band in a column spacing suitable for this band, whereas the additional radiators and radiator means provided for the higher frequency band are arranged in the more narrow horizontal spacing suitable for this band of frequencies.
  • the arrangements are such that the radiators for the higher frequency band are provided twice as many as the radiators for the lower frequency band, because, for example, the radiators in the lower frequency band in a 900 MHz band and the Emitters for the higher frequency band, for example, in the 1800 MHz band and / or receive, which is expressly referred to in this pre-publication.
  • the radiators in the higher or lower frequency band are also fed separately.
  • WO 2004/051796 A1 discloses a two-column antenna array as known, which is constructed as a mono-band array.
  • each column radiators for example, dual-polarized radiators are arranged one above the other in the vertical direction.
  • the column spacing ie the distance between the radiators or radiator groups between two adjacent columns, according to this prior publication is about K / 2 based on the average operating wavelength, the column spacing basically in a range of 0.25 ⁇ to 1.0 ⁇ of the operating wavelength , preferably the average operating wavelength can be.
  • radiators or radiator groups In order to lower the horizontal half-width of the radiator or radiator groups to values below 75 ° in such a mono-band antenna array, it is provided that, for example, at least one radiator, which is fed together with all remaining radiators in one antenna group, is not in the same antenna group Together with the other powered emitters, but is positioned in the other antenna gaps. Again, this is a different case.
  • the invention will be explained in more detail by means of exemplary embodiments.
  • FIG. 7 a an enlarged one compared to FIGS. 1 to 4
  • FIG. 7a Exemplary embodiment of two pairs of antenna columns (four antenna columns); an embodiment of FIG. 7a modified with respect to a four-column antenna array; a modified embodiment with respect to a four-column antenna array, each with four superposed broadband radiators and a plurality of additional emitters; an embodiment modified from FIG. 8a, in which the additional radiators are provided only in the two middle antenna gaps; an embodiment of FIG.
  • FIG. 1 shows a schematic plan view of a first embodiment of the invention is explained.
  • the mobile radio antenna 1 shown in FIG. 1 in the form of an antenna array 1 'comprises, for example, two antenna columns S, 5a, 5b which usually extend in the vertical direction or predominantly in the vertical direction.
  • the mobile radio antenna 1 for example, be aligned with respect to the vertical more or less slightly inclined.
  • phase shift devices are usually provided in order not only to predetermine a down-tilt angle mechanically, but to be able to adjust the angle differently and thus variably if necessary by changing the phase shifter elements. In this respect, reference is made to known solutions.
  • Such an antenna array 1 usually comprises a reflector 7 which then extends vertically or at least approximately vertically according to the preferred vertical orientation of the antenna array.
  • the radiators or radiator groups shown in FIG. 1 are arranged.
  • a radiator group 9 is provided in the left as well as in the right-hand antenna column 5, ie, 5a, 5b, each at a vertical distance above each other, which consists of at least one radiator 11 or at least comprises a radiator 11.
  • two radiator groups 9 are provided in each of the two antenna gaps 5, each of which includes a radiator 11, which may be designed, for example, as a simply polarized or dual-polarized radiator.
  • used vector emitters which are dual polarized operable.
  • Such vector emitters can be found, for example, in the prior publications WO 00/39894 A1 or WO 2004/190315 A1 as known.
  • These vector radiators can have at least approximately or partially a square shape in plan view, wherein the radiating elements or radiator surfaces extending in a square shape are arranged at a distance A from the reflector 7 and via a corresponding antenna base and / or a symmetry 13 as a rule anchored to the reflector, galvanic or capacitive ( Figure 2).
  • the reflector may also consist of a printed circuit board, which may be coated with a corresponding electrically conductive layer in the form of a metallization.
  • FIG. 2 a schematic side view of the antenna array according to FIG. 1 can be seen.
  • the antenna columns or the reflector 7 can be surrounded or bounded by webs 15 which rise relative to the reflector plane 7 'and are oriented perpendicular or inclined to the reflector plane 7'.
  • Such webs can also be formed as separating webs 15 'between the two antenna gaps 5a and 5b shown.
  • a web 17 lying at the top as well as at the bottom and horizontally delimiting the antenna gaps can also be provided.
  • the emitter groups or emitters 9, 11 in each antenna column 5 are arranged along a vertical mounting direction 19 at a predetermined vertical distance from one another, in particular the centers 9 'of the emitter groups. pen 9 or the centers 11 'of the radiator 11. These centers 9', 11 'are positioned centrally in the respective antenna gaps 5, which is preferred but not mandatory.
  • the width B of the two antenna columns is the same size.
  • the central web 15 'extending between the two antenna columns 5a, 5b simultaneously forms a plane of symmetry SE oriented perpendicular to the reflector plane 7', with respect to which the two antenna columns 5a, 5b are formed and arranged are, including the broadband radiator 11 and / or the broadband radiator groups 9 as well as the subsequently explained additional radiator 21.
  • the radiator groups 9 and / or provided in the radiator groups one or a plurality of radiators 11 can not always be arranged necessarily on a common contour line. With an appropriate distance from each other they can nevertheless be positioned offset in the vertical direction in the respective antenna gaps.
  • FIG. 3 merely serves to better illustrate the mode of action. From this it can be seen that the centers 9 ', 11' of the radiator groups 9 or the radiator 11, relative to lent the arranged in the respective adjacent antenna column heaters are positioned at a distance a, that are positioned at a horizontal distance a to each other in vertical alignment of the antenna columns, which is preferably between 0.25 ⁇ to 1.0 ⁇ , for example K / 2 based on the mean operating wavelength. In the following, this horizontal distance a between the centers of the radiator groups 9 or radiators 11 in the two adjacent antenna columns 5 is assumed, even if the centers of the radiator groups or radiators are not positioned exactly on the same contour but at a different altitude.
  • the column spacing i. as a distance of the centers between two radiators or radiator groups in two adjacent antenna columns
  • the optimum column spacing can not be achieved because it changes greatly over the large frequency range.
  • the relative column spacing relevant to the radiation pattern varies with respect to the wavelength ⁇ due to the very large bandwidth of the antenna.
  • radiators 11 shown in FIGS. 1 and 3, which are arranged in the left-hand antenna gap 5a, are fed together, as are the radiators 11 arranged in the right-hand antenna column 5b, which are also fed together, in each case fed together per polarization (whereby the individual radiators or radiator groups positioned above one another can also be differently adjusted in their phase position by phase members and variably adjustable phase members such as phase shifters, in order to be able to set different downtilt angles ,
  • per antenna column 5 at least one additional radiator 21, ie 21a or 21b is inserted, which is also single, dual, circular or elliptically polarized, according to the radiation 11, which are also single, dual, circular or elliptical polarized.
  • the additional radiator 21a in the first Antennenspal- te 5a is fed together with the other broadband radiators 11 in the first antenna column 5a, as well as the additional additional radiator 21b in the second antenna column 5b with the there in the second antenna column 5b provided broadband radiators 11 is fed together.
  • these additional radiators 21a and 21b are intended to transmit and / or receive only in a higher partial frequency range or partial frequency band, preferably of the broadband frequency range (frequency band), in which the radiators 11, which in some cases also act as broadband base frequencies. Emitters 11 are called, send and / or receive. In other words, these additional radiator 21, so the so-called auxiliary radiator 21 should not be fed at low frequencies.
  • Additional radiators 21 are each arranged at a closer distance, in particular horizontal distance b (b being the distance between the centers 21 'a and 21' b of the respective additional radiators 21a and 21b), with one Additional radiator 21 of the left antenna column 5a and the second additional radiator 21 of the right antenna column 5b is assigned or positioned there.
  • the broadband radiator 11 as well as the additional radiator 21 may be fed with the same power or the same amplitude.
  • the additional radiator are supplied to the broadband radiator with higher power or higher amplitudes, for example, twice as high performance. It would also be possible to supply low power or low amplitude with respect to the additional radiators with respect to the broadband radiators. In that case, however, the desired effect with regard to a reduction in the electrically effective gap between the antenna gaps would also be lower, which is generally undesirable.
  • these additional emitters 21 are preceded independently of one another in the respective antenna gaps 5a and 5b by a filter function or a filter F, as shown in principle in FIG.
  • the filter F acts in each case as a high-pass or bandpass filter or as a band-stop filter for lower frequencies and binds the additional radiator for the higher frequencies with a desired power distribution.
  • the filter function F ie in particular the mentioned filter F, in particular for feeding the additional radiator 21 in a higher frequency band or a higher partial frequency band compared to the broadband frequency band which is sent and / or received via the broadband radiator 11 are preferably part of a distribution network or distribution network N, wherein a distribution network Na for the jointly fed broadband emitter IIa and the at least one associated additional emitter 21a and a distribution network Nb for the jointly fed broadband emitter IIb and the at least one associated Additional radiator 21b is provided.
  • each distribution network Na and Nb can be formed separately again for the respective polarization of the preferably dual-polarized radiators. Reference is made in this respect to known and customary methods and solutions.
  • the mentioned broadband radiators 11, ie IIa and IIb are broadband radiators, with a relative bandwidth of preferably more than 25%, in particular more than 30%, 35%, 40% or even more than 45% (im Extreme case even more than 50%) can send and / or receive. Especially with such broadband radiators there is the problem of undesirable side lobe formation whose emergence or influence should be avoided in the invention or significantly reduced in the effect.
  • the Radiators 21 upstream filter group F ensures that these additional radiators 21a and 21b radiate only in a subfrequency band, for example, 2300 MHz to 2690 MHz (or, for example, only in a subfrequency band from 2500 MHz to 2690 MHz), ie send and / or received.
  • the emitters 9 'in each antenna column 5 are jointly supplied with the plane-associated single or multiple auxiliary emitters 21, whereby the above filter F, preferably in the form of a bandpass filter, causes the respective additional emitter 21 to have only a higher subfrequency band in the emitter zone. and / or receive mode is assigned.
  • 9 phase adjusting elements in particular variable phase actuators, can then be provided between the individual radiators 11 or radiator groups arranged one above the other in order to be able to set a different down-tilt angle in spite of the common supply of the radiators in the respective antenna group.
  • the frequency ranges emitted via the additional radiators are emitted at a center frequency f H which is higher than the center frequencies f T with respect to the broadband frequency range which is transmitted or received via the broadband radiators 11 ,
  • the frequency subband emitted with the higher center frequency f H overlaps with the one with a comparatively lower frequency Mid-frequency f H radiated broadband overall frequency band.
  • radiator groups 9 each having a radiator 11 are arranged in the left and right antenna gaps 5a, 5b, and likewise, as in the preceding exemplary embodiments, at a regular vertical distance v between them neighboring centers 9 'and 11' of the radiator groups 9 and the radiator 11 to each other.
  • an additional radiator 21, ie 21a is preferably centrally located between them and offset to the respectively adjacent antenna gaps and 21b which transmits and / or receives in the high-frequency sub-frequency band.
  • the antenna arrangement is such that the radiators or radiator groups 11, 9 in the two upper regions or halves 105a of the antenna columns 5 for the transmission mode TX and the radiators and radiator groups 11, 9 in the two lower regions or halves 105b the antenna columns 5 are provided for the receiving operation RX. Otherwise emitters for each half of the entire antenna array, the structure as explained with reference to Figures 1 to 4, wherein always the emitters 11 for the transmission operation in an antenna column 5 with the respectively provided there, at least one or more additional emitters 21 for each Polarization are fed together. With reference to FIG. 6, a modification has been made with respect to FIG.
  • the additional radiators 21 mentioned and explained are provided only in the upper half 105a for the transmission mode Tx for changing the effective horizontal distance between the antenna columns or the centers of the radiators are.
  • the broadband radiators 11 or radiator groups 9 with the broadband radiators 11
  • no additional auxiliary radiators 21 are provided in the reception mode Rx provided the antenna columns.
  • the exemplary embodiment according to FIGS. 1 and 2 can also be doubled insofar as in each case two pairs of respectively two antenna columns 5a, 5b are provided adjacent to one another in the horizontal direction.
  • the mobile radio antenna according to the invention with the two antenna columns corresponding to the structure according to FIGS. 1 to 4 is formed and provided centrally, wherein in each case an additional antenna gap 5 'or 5 "is additionally provided on the outside, the conventional manner - as in FIG State of the art also - is operated without additional radiator 21.
  • FIG 8a now shows an embodiment in an expanded form, in which, for example, two pairs of antenna columns 5a, 5b are provided, which are arranged side by side in the horizontal direction.
  • four radiator groups 9 are arranged one above the other in the vertical direction in an angularly spaced arrangement in each antenna column.
  • each emitter group 9 comprises only one emitter 11, preferably a dual-polarized emitter, for example in the form of the vector dipole known from the prior art.
  • each radiator column 5 In each case between two (in front of an associated common reflector) arranged one above the other radiators or radiator groups 11, 9 is preferably in the middle between and on the respective adjacent antenna column 5 to shifted an additional radiator 21 is arranged. In the case of n radiators or radiator groups 11, 9 arranged one above the other, therefore, n-1 additional radiators 21 are provided in each antenna column 5. Otherwise, the mechanical structure is the same as the electrical mode of action with respect to the two left antenna columns 5a and 5b shown in FIG. 8a and the associated radiators, and the electrical mode of action with respect to the two antenna columns 5a and 5b located on the right in FIG. 8a with the broadband radiators provided there 11 and additional radiators 21 similar to the embodiment described with reference to Figures 1 to 4.
  • FIG. 8b shows a corresponding modification with respect to FIG. 8a, similar to the modification of FIG. 7b with respect to FIG. 7a.
  • the mentioned additional radiator 21 are arranged in accordance with the described structure only with respect to the two middle antenna columns accordingly. 8c, the corresponding structure is reproduced similarly to FIG.
  • the antenna array comprises only two antenna gaps 5, with the radiators or radiator groups 11, 9 positioned n-1 at a distance from each other, positioned along an attachment line 19 and in a corresponding cultivation line 19 'positioned in each antenna column additional radiators 21, these two attachment lines 19, 19' and thus the centers of these additional radiators 21 are arranged at a closer distance b to each other, ie asymmetric to the central longitudinal plane in a respective Antenna column.
  • the supply of the respective additional radiator 21 for each antenna column can also be effected inversely to the preceding exemplary embodiments.
  • the electrical interconnection of the emitters 11 and the emitter groups 9 or the positioning of the additional emitters 21 differs.
  • each of these radiator groups 9 can comprise more than one radiator 11, for example.
  • each emitter group 9 comprises, for example, two emitters 11 which are each fed together and in phase (although three or even more emitters may be provided in each emitter group or may be provided only in a part of the emitter groups, and in this case, the additional, belonging to a radiator groups 9 spotlights not only in the vertical cultivation direction one above the other but if necessary also additionally horizontally next to each other in a common antenna column can sit).
  • an additional radiator 21 is provided for each of the radiator groups 9; ter interposition of a filter F is also fed together with the respective same radiator group 9 belonging radiator 11, so also in-phase, unless an additional phase shift element is provided.
  • phase radiator devices 25, for example a double phase shifter 25a allow each emitter group 9, which is offset in the vertical direction, to be supplied with a different phase angle.
  • all emitters 11 and additional emitters 21 in each antenna column are fed together for each polarization, but this does not exclude that different phase positions can be set for the different emitters or emitter groups positioned one above the other in the vertical direction.
  • reference is made to known solutions for setting a downtilt angle for example, to the pre-publication EP 1 208 614 B1.
  • phase position can also be set differently for the second antenna gaps 5, 5b correspondingly for the emitters 11 and additional emitters 21 provided there.
  • the use of the auxiliary emitters results in a more constant realization of the radiation pattern, in particular by the desired sidelobe suppression which otherwise occurs in solutions according to the prior art.
  • the lateral offset of the positioning of the additional radiator 21 brings about a clear improvement in "beamforming". Operation, ie, the base station controls the two antenna columns 5, 5a, 5b so that even in the horizontal plane variable Strahlschwen- effect or change in the half-width is achieved.
  • the mentioned antenna array can consist of two columns or several, preferably in each case two columns comprehensive arrangements.
  • the antenna array has broadband radiator for the broadband range and radiators for a contrast higher and usually narrower frequency range, which overlap, partially overlap or do not overlap flush.
  • the antenna array includes one or more filters, the filters provided in particular for the additional radiators are integrated in a distribution network with a corresponding filter function.
  • the mentioned filters can be designed in the form of high-pass filters or band-stop filters, band-pass filters or by means of other suitable measures to select or suppress the desired frequencies.
  • the mechanical gap spacing between antenna columns can be, for example, 0.2 to 1.5 wavelengths relative to the center frequency or the middle of the broadband radiators, which cover the broadband frequency range, in particular in the form of the entire broadband frequency range.
  • the corresponding column spacing may therefore be preferably 0.4 to 0.8 wavelengths.
  • the radiators can be supplied and / or operated with the same power distribution or with unequal power distribution.
  • the broadband emitters with the same power distribution and the additional emitters for the higher frequency band or the higher partial frequency band with the same or higher power can be fed or operated.
  • the mentioned distribution network can be designed as a printed board (printed circuit board).
  • the distribution network can also be designed with cables and filters.
  • the distribution network may also be a hybrid design using a printed board and cables.
  • the antenna array may comprise broadband radiators and / or auxiliary radiators for transmission (Tx) and reception (Rx) operations separately and separately.
  • the antenna array can be designed to be the same or different for both transmit (Tx) and receive (Rx) operations.
  • the antenna array may comprise a different number or an equal number of columns for the transmit (Tx) and receive (Rx) operations.
  • the antenna array preferably comprises dual-polarized radiators which are designed and / or positioned in the manner of an X-polarization, so that the planes of polarization come to lie in a + 45 ° or -45 ° angle with respect to the horizontal plane or the vertical.
  • the additional emitters not only improve the radiation diagram in the horizontal plane, but also bring about a frequency-related approximation of the vertical radiation pattern.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

L'invention concerne un réseau d'antennes amélioré qui se distingue notamment par les caractéristiques suivantes : dans au moins deux colonnes d'antennes (5 ; 5a, 5b) se trouve respectivement au moins un élément rayonnant supplémentaire (21 ; 21a, 21b), les au moins deux éléments rayonnants supplémentaires (21 ; 21a, 21b) sont disposés de telle sorte que les centres (21'a, 21'b) desdits deux éléments rayonnants supplémentaires (21 ; 21a, 21b) se trouvent à un écart latéral horizontal (b) qui est inférieur à l'écart latéral (a) entre les centres (9', 11') des groupes d'éléments rayonnants (9) ou des éléments rayonnants (11) dans les deux colonnes d'antennes (5 ; 5a, 5b), les éléments rayonnants à large bande (11 ; 11a, 11b) dans une colonne d'antenne (5 ; 5a, 5b) correspondante sont alimentés en commun avec ledit élément rayonnant supplémentaire (21 ; 21a, 21b), et il existe un réseau répartiteur (N ; Na, Nb) pour l'au moins un groupe d'éléments rayonnants (9 ; 9a, 9b) incluant l'au moins un élément rayonnant (11 ; 11a, 11b) correspondant qui possède une fonction de filtrage (F) associée pour ledit élément rayonnant supplémentaire (21 ; 21a, 21b), lequel rayonne dans une bande de fréquences partielle plus élevée que les éléments rayonnants à large bande.
EP14733091.4A 2013-07-24 2014-06-26 Réseau d'antennes à large bande Active EP3025395B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013012305.4A DE102013012305A1 (de) 2013-07-24 2013-07-24 Breitband-Antennenarray
PCT/EP2014/001732 WO2015010760A1 (fr) 2013-07-24 2014-06-26 Réseau d'antennes à large bande

Publications (2)

Publication Number Publication Date
EP3025395A1 true EP3025395A1 (fr) 2016-06-01
EP3025395B1 EP3025395B1 (fr) 2017-08-02

Family

ID=51022285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14733091.4A Active EP3025395B1 (fr) 2013-07-24 2014-06-26 Réseau d'antennes à large bande

Country Status (5)

Country Link
US (1) US9991594B2 (fr)
EP (1) EP3025395B1 (fr)
CN (1) CN105409059B (fr)
DE (1) DE102013012305A1 (fr)
WO (1) WO2015010760A1 (fr)

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WO2017091993A1 (fr) 2015-12-03 2017-06-08 华为技术有限公司 Antenne de communication multifréquence et station de base
DE102016011890A1 (de) * 2016-10-05 2018-04-05 Kathrein-Werke Kg Mobilfunk-Antenne
CN106848606B (zh) 2016-12-29 2021-01-05 上海华为技术有限公司 一种天线系统
JP6756300B2 (ja) * 2017-04-24 2020-09-16 株式会社村田製作所 アレーアンテナ
US11283195B2 (en) 2018-01-24 2022-03-22 John Mezzalingua Associates, LLC Fast rolloff antenna array face with heterogeneous antenna arrangement
CN111786081A (zh) * 2019-04-04 2020-10-16 康普技术有限责任公司 具有集成阵列的多频带基站天线
WO2020210527A1 (fr) * 2019-04-09 2020-10-15 St Technologies Llc Systèmes de réseau actif utilisant un réseau aminci
WO2020246155A1 (fr) * 2019-06-07 2020-12-10 株式会社村田製作所 Module d'antenne, dispositif de communication équipé de celui-ci et carte de circuit imprimé
JP7133532B2 (ja) * 2019-10-30 2022-09-08 株式会社東芝 アンテナ装置及び探索装置
KR20210092696A (ko) * 2020-01-16 2021-07-26 삼성전자주식회사 통신 시스템에서 플로팅 라디에이터를 포함하는 안테나 모듈 및 이를 포함하는 전자 장치
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US9991594B2 (en) 2018-06-05
US20160172757A1 (en) 2016-06-16
DE102013012305A1 (de) 2015-01-29
WO2015010760A1 (fr) 2015-01-29
CN105409059A (zh) 2016-03-16
EP3025395B1 (fr) 2017-08-02
CN105409059B (zh) 2019-03-08

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