EP2929589A1 - Dualpolarisierte, omnidirektionale antenne - Google Patents
Dualpolarisierte, omnidirektionale antenneInfo
- Publication number
- EP2929589A1 EP2929589A1 EP13789186.7A EP13789186A EP2929589A1 EP 2929589 A1 EP2929589 A1 EP 2929589A1 EP 13789186 A EP13789186 A EP 13789186A EP 2929589 A1 EP2929589 A1 EP 2929589A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- reflector
- sector
- central axis
- dual
- 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
Links
- 230000009977 dual effect Effects 0.000 title claims description 15
- 230000010287 polarization Effects 0.000 description 8
- 230000005855 radiation Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000003491 array Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- 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
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
-
- 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
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
- H01Q21/205—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path providing an omnidirectional coverage
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
- H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/005—Antennas or antenna systems providing at least two radiating patterns providing two patterns of opposite direction; back to back antennas
Definitions
- the invention relates to a dual-polarized, omnidirectional antenna according to the preamble of claim 1.
- An omnidirectional antenna (omnidirectional antenna) has become known, for example, from WO 2011/120090 A1.
- Such omnidirectional omnidirectional device comprises, for example, three antenna array arrangements which are each arranged at a 120 ° angle offset from each other about a central axis, resulting in a triangular structure in axial plan view. This allows each antenna array to cover approximately an azimuth angular range of 120 °.
- Corresponding antennas may comprise a wide variety of emitters and emitter devices according to the prior art, for example dipoles, so-called vector dipoles, patch emitters, etc. So-called dual-polarized vector emitters have become known, for example, from EP 1 057 224 Bl.
- Each of the three mutually offset antenna arrays comprises, for example, a plurality of dual-polarized radiator devices arranged one above the other at equal intervals. Via a corresponding feed device, the respective dual-polarized radiators are fed.
- the spotlights can also be fed circularly.
- the two polarization planes are not only perpendicular to one another, but are arranged at an angle of + 45 ° or -45 ° with respect to a horizontally or vertically oriented plane.
- the individual sector antennas MIMO able be configured, so are part of a receiving system with multiple input and output signals.
- a vertically polarized antenna has also become known, for example, from DE 600 19 412 T2. It includes a vertical, elongated support structure with several
- Dipoles arranged at different heights along the support structure and connected to a coaxial power cable.
- the dipoles are coplanar and arranged exactly colinear, divided into two groups, which are formed successively on said construction.
- the dipoles in the two groups are oriented in the opposite direction to each other, so that the horizontal polarization components of the two groups are opposite.
- the arrangement is such that a small distance arises between the two dipole groups, which offers the possibility of the phase centers of the dipoles of both Balancing groups to compensate for a small shift due to the effect of the ground plane on the dipoles.
- vertically polarized omnidirectional radiators which radiate or receive only in a polarization that is not MIMO-capable.
- These vertically polarized omnidirectional antennas with, for example, three or four panels are connected together around a mast in a same plane to form an omnidirectional diagram. For better roundness, several layers can be twisted together.
- the disadvantage here is that good broadcast properties are only possible for a small frequency range (due to the geometric arrangement, this results in phase-dependent cancellations).
- a multi-sector antenna has also become known, for example, from DE 697 34 172 T2.
- a plurality of elemental antennas are used, each having a different directivity in a horizontal plane.
- each elementary antenna is arranged in a vertical plane, wherein at least one of the elementary antennas is positioned at a different height than that of the other elemental antennas.
- the elemental antennas are arranged with respect to a vertical axis of the sector antennas, which is defined such that the elementary antennas are arranged axially symmetrically with respect to the said axis.
- the solution according to the invention is characterized in that several, for example, three radiated to 120 ° radiating sector antenna devices, in particular antenna arrays, may be provided, but not deviating from the generic state of the art not in the same altitude, but in the vertical direction, ie in their Cultivation direction offset from each other.
- a phase center is understood as meaning those electronic reference points of an antenna from which the electromagnetic antenna radiation appears to be viewed from the point of reception.
- a further improvement of the sector antenna is created by providing between two adjacent and along the central axis offset from each other arranged sector antennas between a decoupling device.
- This decoupling device may preferably consist of a reflector web, which is aligned transversely to the reflector plane of the associated reflector.
- Such transverse webs which are formed on the reflector, although in principle for example from DE 103 16 787 AI become known.
- this is a conventional single-column mobile radio antenna which comprises at least two reflector modules which can be assembled into an overall reflector, which is characterized in each case by lateral longitudinal webs and transverse webs extending between the individual radiator arrangements.
- the at least one reflector plane of each sector antenna is arranged such that the vertical central axis passes through all reflector planes or is arranged at a distance therefrom, which is significantly smaller than the distance according to the prior art.
- the reflector plane can usually be referred to at least approximately as a phase center, that is usually the middle region of a corresponding reflector arrangement of a sector antenna.
- phase center of the overall arrangement for the horizontal diagram is identical to the phase center of a single antenna.
- group factor of the overall arrangement is frequency-independent and the omnidirectional diagram thus extremely broadband (it is therefore also suitable for dual-band antennas).
- the roundness of the overall arrangement depends only on the half-width of the single antenna.
- a decoupling-optimized structure of the single-beam or directional antennas is also provided.
- This may, for example, circumferential or partially circumferential reflector webs, especially reflector webs, which lie transversely to the respective reflector plane and are formed between the individual, vertically stacked sector antennas.
- an omnidirectional monoband antenna but also, for example, an omnidirectional dual-band antenna or an omnidirectional multiband antenna comprising several bands, which can additionally transmit and / or receive dual-polarized or circular-polarized.
- This can preferably be realized using suitable radiators and radiator devices, for example in the form of patch radiators, but also in the form of so-called dipole or vector radiators, as they are For example, from EP 1 082 728 Bl and EP 1 470 615 Bl can be found as known.
- a plurality of monoband, dual band or multi-band radiators or radiator devices can also be arranged in each antenna column, usually arranged one above the other in the vertical direction, as in a conventional antenna.
- Each of these antenna columns with the plurality of superimposed radiators are then arranged offset in the circumferential direction around the central axis, that is aligned, ie with different azimuth angles.
- the emitters can be doubled by providing oppositely directed emitter devices relative to the respective reflector plane (that is offset by 180 °).
- the common plane in which the phase centers of a column antenna lie or at least approximately may be arranged so that it preferably passes through the central axis or in the vicinity of the central axis.
- radiators in the one column could be arranged so that their phase centers come to lie exactly or as exactly as possible to the respective central axis of the antenna arrangement, and then that in a
- second antenna column arranged radiator devices in the radial direction so come to lie in the lateral direction offset to the central axis, so far as the two columns are not symmetrical to the central axis.
- Figure 1 is a perspective view of a first embodiment of an omnidirectional dual polarized multi-band antenna according to the invention
- Figure 2 is a schematic axial plan view of the embodiment of Figure 1;
- FIG. 3 a corresponding illustration to FIG. 2, but with reflectors not shown;
- FIG. 4 a shows a perspective view of a modified antenna (sector antenna arrangement) with two oppositely oriented sector antennas, which preferably comprise a common reflector lying in a plane of symmetry;
- FIG. 4 b shows a plan view of the exemplary embodiment according to FIG.
- FIG. 4c a corresponding illustration to FIG
- FIG. 5 shows an embodiment modified from FIG. 1 in perspective view with respect to an antenna (omnidirectional antenna) with three sector antennas which radiate and / or receive only in one band;
- Figure 6 a schematic, axial plan view the embodiment of Figure 5;
- Figure 7 a corresponding view to Figure 6, but with not shown reflectors
- FIG. 8 shows a modification of FIGS. 5 to 7
- Embodiment with two in the central direction staggered emitters per single-column sector antenna
- Figure 9 is a plan view of the embodiment of Figure 8.
- Figure 10 is a corresponding view to Figure 9, but with not shown reflectors;
- FIG. 11 is a perspective view, with a modification of FIG. 8, with two antenna columns per sector antenna, in each of which two emitters arranged one above the other in the central direction are provided;
- Figure 12 is a schematic, axial plan view of the embodiment of Figure 11;
- FIG. 13 a corresponding illustration to FIG
- FIG. 14 an embodiment modified to FIG. 11 Example, in which the two antenna gaps are positioned laterally relative to the embodiment of Figure 11 transverse to the central axis;
- Figure 15 is a schematic, axial plan view of the embodiment of Figure 14;
- FIG. 16 a corresponding illustration to FIG
- FIG. 17 shows an exemplary embodiment of an omnidirectional radiator modified from the preceding exemplary embodiments, in which two radiators, offset by 180.degree. To one another, are provided in each height range relative to the central axis, which radiators are mounted on a common reflector wall;
- Figure 18 is a schematic, axial plan view of the embodiment of Figure 14;
- Figure 20 is an axial plan view of a modified embodiment in deviation from the embodiment of Figure 6, in which the individual sector antennas in the beam direction with a small offset of the central axis 1 are arranged at a distance;
- FIG. 21 shows a further modified exemplary embodiment in an axial outer view, in which FIG
- FIG. 22 shows a schematic top view of a corresponding antenna arrangement with three sector antennas arranged offset by 120 ° relative to one another according to the prior art, in which the sector antennas are arranged at the same height.
- a vertical central axis 1 is shown by dashed lines, which is also referred to below as a mounting axis or cultivation line.
- dashed lines which is also referred to below as a mounting axis or cultivation line.
- three sector antennas In the embodiment shown are three sector antennas
- each offset in the azimuth direction by 120 ° in the circumferential direction are aligned with each other, so offset by 120 ° to each other. It can be seen from the drawings that the three sector antennas 5 are not positioned at the same altitude, relative to their vertical central axis 1 (as is common in the prior art), but offset in the direction of the vertical central axis or cultivation line 1 to each other.
- each of the sector antennas 5 comprises, for example, a dual-polarized emitter 7, for example for a first, higher frequency band (high band) and a further, dual-polarized emitter 9 for a lower frequency band (low band), this sector antenna 5 being arranged in an antenna column 6.
- the vector radiator for the higher frequency band has a structure as it is basically known for example from EP 1 057 224 B4 or DE 198 60 121 AI.
- This dual-polarized radiator for the higher frequency band (also referred to below as vector dipole) is arranged, for example, within a so-called cup-shaped dipole, which is likewise designed as a dual-polarized radiator and is suitable for transmission and reception in a low frequency band due to its larger dimensioning.
- a radiator is basically to be found, for example, in EP 1 470 615 B1 as known.
- the two radiators 7 and 9 are seated at a same position when viewed from the front, perpendicular to the respectively associated reflector 11, which in the exemplary embodiment shown in each case comprises a reflector wall 13 which faces the radiator and which is located in a reflector plane 13 '. is arranged, wherein in the embodiment shown circumferentially reflector webs 15 are arranged. These reflector webs 15 are transversely and preferably in the embodiment shown perpendicular to the reflector plane 13 'and are provided as part of the entire reflector 11 as a circumferential boundary.
- a decoupling-optimized structure can be realized, that is to say an antenna structure in which a respective sector antenna 5 is optimally decoupled from an adjacent sector antenna located below or above it.
- the mentioned, decoupled reflector construction therefore comprises at least one reflector web 15 1 , which is aligned transversely and preferably perpendicular to the reflector plane 13 1 of the relevant sector antenna 5 and is arranged between two adjacent sector antennas. It should this, especially the decoupling to an adjacent sector antenna serving crosspiece 15 'of the reflector 11 transverse and in particular perpendicular to the connecting line, that is, the central axis 1, aligned.
- an intermediate reflector 17 can also be arranged in an intermediate reflector plane 17 'at a parallel distance from the rear reflector wall 13, which is dimensioned smaller than the dual-polarized radiator 9 for the low frequency range, the symmetrization of the corresponding vector radiator 7 having a corresponding central opening 17a electrically protrudes in this intermediate reflector 17, galvanic contact-free.
- the embodiment shown in perspective in FIG. 1 comprises the mentioned three sector antennas 5, which are each offset by 120 ° in the vertical or central direction 1 to each other.
- the structure of all antennas is basically the same, but could also be different from each other.
- each sector antenna 5, that is, each respective antenna system 5 is constructed in the embodiment shown in the manner of a single-column sector antenna, which in the embodiment shown, only one row and thus only a corresponding radiator arrangement for transmitting in a higher and lower frequency band summarizes.
- two or more sector antennas can also be combined to form a corresponding sector antenna array in the vertical direction in a common antenna column 6.
- other antenna systems or sector antennas can be provided, which are positioned in a rather laterally, radially or horizontally extending cultivation direction.
- the aforementioned vertical central axis 1 is located in each case centrally in each of the reflector planes 13 'and in the middle of the respective reflector wall 13.
- each sector antenna 5 which is approximately centered in the associated reflector plane 13th 'or in the reflector wall 13 of each sector antenna 5 is located in an axial plan view of the vertical central axis 1, so that therefore results over the conventional solution significantly improved omnidirectional radiation pattern.
- FIG. 4 shows a double individual emitter, that is to say a double sector antenna, which is shown in FIG. showed embodiment can each be operated in two frequency bands.
- This double sector antenna 5 comprises a central, in this embodiment, a central reflector 15 which extends perpendicular to the plane of the drawing and has a common reflector wall 13 which lies in said common reflector plane 13 '.
- the two sector antennas 5 are in this embodiment offset by 180 ° to each other and thus positioned symmetrically to the reflector plane 13 '.
- each of the two sector antennas which are rotated by 180 ° relative to one another (as in the preceding embodiment), each have a larger-sized (and, for example, cup-shaped) dual-polarized emitter 9 for the lower frequency band and in its central position another, also dual-polarized vector radiator 7, optionally again with the additional not visible in Figure 4 and from the actual reflector plane 13 'spaced reflector 17, which is also provided again in a reflector plane 17'.
- This construction with a double sector antenna 5 aligned offset by 180 ° can now be used for each of the three sector antennas shown in FIG. 1, so that, with the same axial structure as well as the same diameter of the antenna arrangement thus formed, this will ultimately be six Let spotlights be accommodated. This not only improves the omnidirectional diagram, but also allows MIMO capability to be realized.
- FIGS. 5 to 7 will be discussed, which in principle follows from FIG Embodiment according to the figures 1-3 corresponds to, but with the difference that, unlike the Figures 1 to 3 (which describe an omnidirectional round emitter using dual polarized radiators for a dual-band antenna) now vector emitters 7 or 9 are provided, the only in a frequency band can send or receive.
- a vector emitter or vector dipole is used, as can be seen, for example, from DE 10 2004 057 774 B4 for the higher frequency band described therein.
- All shown three sector antennas 5 arranged one above the other in the vertical direction along the central axis 1 are arranged offset in a 120 ° angle to one another, as is apparent in particular from the view along the central axis according to FIGS. 6 and 7.
- the arrangement can be such that it can be transmitted and / or received by means of such an omnidirectional antenna in each desired frequency band, specifically for both polarizations.
- other suitable radiating means such as patch radiators, may be used instead of the dual polarized vector dipole shown.
- each antenna column 6 is provided for each sector antenna 5, but in the case of each antenna column 6 along the central direction two mutually offset dual-polarized radiators 7 or 7 are provided 9 are arranged.
- the spacing of the beams is usually determined as a function of the selected frequency band in which the antenna is to radiate and / or receive. This distance is usually a value between ⁇ / 2 and ⁇ , for example by 0.7 to 0.75 ⁇ , where ⁇ may be the center frequency of operation for the frequency band in question.
- this embodiment is a dual-polarized, omnidirectional round radiator for a monoband, in which each sector antenna comprises at least two dual-polarized radiators arranged one above the other in the direction of attachment, as a rule in the direction of the vertical central axis 1.
- each sector antenna as in the otherParksbei- play also at a corresponding angle to the central axis 1 around arranged offset to each other, as the figures 9 and 10 show.
- FIGS. 8 to 10 The illustrated embodiment according to FIGS. 8 to 10 is likewise shown again for a monoband antenna with a plurality of dual-polarized radiators arranged one above the other along the central axis 1. But even here, the individual sector antennas can be considered dual-polarized
- Dual-band or dual-polarized triband or generally dual-polarized multi-band antennas may be formed. If the radiators in the individual sector antennas 5 are intended to radiate, for example, in two (or more) frequency bands, a different radiator spacing is usually selected between the individual radiators depending on the operating wavelength, as is fundamentally understood, for example, from EP 1 082 782 B1 (corresponding to WO 99/062139 AI) is known. For example, referring to the exemplary embodiment according to FIG. 1 or FIG.
- each sector antenna 5 has two dual-polarized emitters 9 spaced apart from the central axis 1 for the lower frequency band and, for example, in FIG three dual-polarized emitters 7 for the higher frequency band offset, for example, at twice as high upper frequency band (for example, 1800 MHz band) in relation to the lower frequency band (for example, 900 MHz band) two dual-polarized radiator 9 for the higher frequency band in the central central position of the two dual polarized radiators for the lower frequency band 9 sit (as shown in Figure 1), and that the third dual polarized radiator 7 for the higher frequency band between the two centers of the two radiators for the lower and higher frequency band can be arranged.
- the third dual polarized radiator 7 for the higher frequency band between the two centers of the two radiators for the lower and higher frequency band can be arranged.
- this omnidirectional omnidirectional comprises not only three sector antennas 5 with dual-polarized radiators, which are arranged only in one antenna column 6, but which are each arranged in two antenna columns 6.
- at least one or a plurality of monoband, dual band or generally multi-band emitters, which are preferably offset in the central direction 1, can be arranged in each antenna column, as was fundamentally explained with reference to the preceding exemplary embodiments.
- the reflector 11 with its reflector wall 13 lies for each of the two antenna columns 6 of each sector antenna 5 in a same reflector plane 13 '.
- Corresponding Reflector bars 15 are provided for each column arrangement which extend around all radiators 7, 9 belonging to one antenna column, including the mentioned reflector bars 15 'oriented transversely to the central axis 1 for achieving a decoupling to the next sector antenna.
- transverse reflector webs could, if required, also be provided between the individual radiators 7 or 9 in the individual antenna columns 6.
- an antenna web 15 "extending in the central axial direction 1 is also provided between the two antenna columns
- the distance between the central longitudinal axes through each of the antenna columns 6 should again correspond to the usual distance, ie, for example, between ⁇ / 2 and Correspondingly suitable values are often between 0.65 ⁇ to 0.75 ⁇ , for example, around 0.7 ⁇ (relative to the center operating frequency, if it is a Monband antenna, otherwise for dual band Antennas shall be used for ⁇ the value of the center frequency for the lower frequency band as a reference).
- the two antenna columns 6 each to a vertical plane of symmetry (perpendicular to the reflector plane 13 'standing) arranged so that the vertical central axis 1, the reflector plane 13' passes through, precisely at the separation and connection point between That is, the respective vertical axis of symmetry 1 between the antenna columns 6 parallel to the associated Reflector plane 13 'runs.
- the result is that in the far field, the phase centers of the sector antennas 5 (with the radiators in the two columns 6) seem to be in the central axis 1 or at least approximately there.
- the to each second antenna column 6 is then asymmetrically offset laterally to the center axis 1, that is radially outward ver ⁇ is arranged lying, so that there is a different to Figures 12 and 13 arrangement in plan view of Figs.
- Antenna gaps in the transverse direction, that is perpendicular to the central axis 1 are positioned in different positions, so do not necessarily only in the in the Figures 11 to 13 and 14 to 16 shown position may be arranged. Any other deviating relative positions in a different displacement position perpendicular to the central axis are possible. However, an arrangement is preferred in which, in plan view of a corresponding sector antenna with the at least one or the at least two antenna columns, the central axis 1 always lies in an overlapping position relative to the one-, two- or more-column sector antenna 5.
- the number of emitters can be doubled at each position of the sector antenna, in that, as it were, with respect to the reflector 11 or the reflector wall 13, it is mirror-inverted on both
- the antenna structure is basically such that the phase centers of all the column antennas, that is to say at least the column antennas, which are usually mounted consecutively in the vertical direction along the central axis 1, coincide in the central axis 1 or lie at least in the vicinity of the central axis 1.
- the individual sector antennas with their reflectors 11 are arranged around a central axis 1 in such a way that in plan view along the central axis 1, the reflectors 11 and thus also the reflector wall 13 at least partially overlap and overlap.
- this distance is clear and preferably more than half smaller than the usual distance between the phase centers, that is to say in particular the respective reflector plane 13 ', the reflector walls 13 and the central axis X in conventional omnidirectional antenna arrangements which have a triangular structure in plan view, in which the reflectors Torenbenen are positioned on the sides of an equilateral triangle.
- the reflector walls 13, that is to say the respective reflector plane 13 ' are preferably arranged relative to the central axis 1 such that the radial distance to the central axis 1 of this reflector wall 13 or the reflector plane 13' is less than 15%, in particular smaller than 10%, 8%, 6%, 5%, 4%, 3%, 2%, and in particular smaller than 1% of the column width B of the respective antenna column 6 (see Figures 1, 8 or 11).
- each sector antenna 5 is arranged so that the central axis 1 in the reflector plane 13' is located.
- the individual sector antennas with their reflectors 11 and the reflector walls can also be arranged offset at a radial distance from the central axis, in order to still realize the advantages according to the invention, if this distance does not become too great. Therefore, this distance should preferably be less than 15%, in particular less than 10%, 8%, 6%, 5%, 4%, 3%, 2% and in particular less than 1% of the column width B of an antenna column 6.
- FIG. 20 Such an arrangement of the individual reflectors is shown in FIG. 20, in which the respective reflector plane 13 'has a small radial offset to the central axis 1 in the aforementioned sense.
- Such a form of training is considered, inter alia, if in the free space formed in this way between the sector antennas arranged in a top view at three different levels For example, an antenna mast should be provided, which is penetrated by the central axis 1.
- the reflector walls 13 are arranged offset with their associated reflector planes 13 1 relative to the central axis 1, that the central axis 1 passes through the reflector webs.
- the central axis 1 extends on the side of the reflector plane 13 ', on which the radiators 7 and / or radiators 9 are provided (in the embodiment according to FIG. 20, the central axis 1 extends on the rear side of the reflector walls 13, ie the opposite side to the radiators 7/9).
- FIG. 22 in order to complete the axial plan view, there is shown an antenna with three sector antennas of the prior art, in which the three sector antennas 5 are arranged around the central axis through a 120 ° angle, in which case all sector antennas are mounted at the same height, since the reflector walls have such a large distance to the central axis 1, that the sector antennas thus formed and in particular their reflectors 11 or reflector walls 13 do not overlap or intersect in plan view.
- reflector webs 15 and 15 ' should preferably have a reflector web height R which is greater than 0.05 ⁇ , where ⁇ is the center frequency in the case of a monoband emitter. In the case of a dual-band or multi-band emitter array, ⁇ is the center frequency of the lowest frequency band.
- the height R of the side wall or the side webs 15, 15 'of the reflector 11 with respect to the reflector plane 13' should not be greater than the height Hl, ie the height of the radiator 7 with respect to the reflector plane 13 'and thus not higher be as the height H2, that is, the height of the radiator 9 with respect to the reflector plane 13 '(see Figure 4).
- the reflector web height R of the reflector webs 15, 15 'and 15 is smaller than the height H2 of the dual- or vertically-polarized dipole or vector emitters 9 for the lower frequency band and thus even lower as the height Hl of the even higher-building dual- or vertical-polarized dipole or vector radiator 7 for the higher frequency band, as can be seen from Figures 2 or 4.
- the feed system has not been discussed individually.
- the corresponding radiators and antennas are fed separately with respect to the two mutually perpendicular polarization planes as well as for the one or more frequency bands via coaxial lines.
- combiners / distributors by means of which the jointly supplied frequencies can be divided or combined. It is so far referred to known solutions, which also for the operation the sector antennas 5 for the realization of a MIMO operation applies.
- the sector antennas belonging to the illustrated round beam which radiate or receive in a single polarization can be interconnected via a supply network (this does not apply to the sector operation).
- the sector antennas emitters are provided which transmit and / or receive in two mutually perpendicular polarization planes, all in a common plane of polarization (of, for example, + 45 ° or -45 ° relative to the horizontal) operated emitters can be interconnected via a feed network.
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012023938.6A DE102012023938A1 (de) | 2012-12-06 | 2012-12-06 | Dualpolarisierte, omnidirektionale Antenne |
PCT/EP2013/003355 WO2014086452A1 (de) | 2012-12-06 | 2013-11-07 | Dualpolarisierte, omnidirektionale antenne |
Publications (2)
Publication Number | Publication Date |
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EP2929589A1 true EP2929589A1 (de) | 2015-10-14 |
EP2929589B1 EP2929589B1 (de) | 2018-09-05 |
Family
ID=49554198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP13789186.7A Active EP2929589B1 (de) | 2012-12-06 | 2013-11-07 | Dualpolarisierte, omnidirektionale antenne |
Country Status (6)
Country | Link |
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EP (1) | EP2929589B1 (de) |
JP (1) | JP6014774B2 (de) |
KR (1) | KR101672502B1 (de) |
CN (1) | CN105379006B (de) |
DE (1) | DE102012023938A1 (de) |
WO (1) | WO2014086452A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3644440A4 (de) * | 2017-08-24 | 2020-07-29 | Samsung Electronics Co., Ltd. | Elektronische vorrichtung mit antenne |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3120642B1 (de) | 2014-03-17 | 2023-06-07 | Ubiquiti Inc. | Gruppenantennen mit einer vielzahl von gerichteten strahlen |
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- 2013-11-07 JP JP2015545682A patent/JP6014774B2/ja active Active
- 2013-11-07 EP EP13789186.7A patent/EP2929589B1/de active Active
- 2013-11-07 KR KR1020157014674A patent/KR101672502B1/ko active IP Right Grant
- 2013-11-07 CN CN201380063614.8A patent/CN105379006B/zh active Active
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EP3644440A4 (de) * | 2017-08-24 | 2020-07-29 | Samsung Electronics Co., Ltd. | Elektronische vorrichtung mit antenne |
US11196151B2 (en) | 2017-08-24 | 2021-12-07 | Samsung Electronics Co., Ltd. | Electronic device comprising antenna |
Also Published As
Publication number | Publication date |
---|---|
JP2016504843A (ja) | 2016-02-12 |
EP2929589B1 (de) | 2018-09-05 |
JP6014774B2 (ja) | 2016-10-25 |
KR20150093680A (ko) | 2015-08-18 |
CN105379006A (zh) | 2016-03-02 |
KR101672502B1 (ko) | 2016-11-04 |
DE102012023938A1 (de) | 2014-06-12 |
WO2014086452A1 (de) | 2014-06-12 |
CN105379006B (zh) | 2018-07-06 |
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