CN101080845A - Dual-band mobile radio antenna - Google Patents
Dual-band mobile radio antenna Download PDFInfo
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- CN101080845A CN101080845A CNA2005800346390A CN200580034639A CN101080845A CN 101080845 A CN101080845 A CN 101080845A CN A2005800346390 A CNA2005800346390 A CN A2005800346390A CN 200580034639 A CN200580034639 A CN 200580034639A CN 101080845 A CN101080845 A CN 101080845A
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- radiator
- plane
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- bearing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/108—Combination of a dipole with a plane reflecting surface
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- 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
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- 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
- H01Q5/42—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more imbricated arrays
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- 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
- H01Q5/48—Combinations of two or more dipole type antennas
Abstract
The invention relates to an antenna, in particular a mobile radio antenna for operation in at least two frequency bands, comprising the following features: the antenna is equipped with several dipole transmitters (2; 3), which are located in front of a reflector (1) and transmit in two different frequency bands; the distance between the transmitter structure, the transmitter elements or the upper face (102) of the transmitter elements of at least one dipole transmitter (2) for the higher frequency band and the reflector plane (E) is at least 75 % and a maximum 150 % of the distance between a transmitter structure, a transmitter element or the upper face (103) of a transmitter element of at least one dipole transmitter (3) for the lower frequency band and the reflector plane (E); and/or the distance between the transmitter structure, transmitter elements or the upper face (102) of the transmitter elements of at least one dipole transmitter (2) for the higher frequency band and the reflector plane (E) is greater than 0.4 Lambada and preferably less than 2 Lambada in relation to the mid-frequency of the transmitter for the higher frequency.
Description
Technical field
The present invention relates to a kind of antenna, especially mobile radio antenna of working of being used at least two frequency bands.
Background technology
Multiband antenna known in the state of the art, it makes and can receive and divergent-ray at least two different frequency ranges.For example, document DE19823749A1 has showed a kind of dual polarization multiband antenna, and it comprises first and second radiators.The radiation in different frequency ranges of first and second radiators, and comprise and being arranged on the reflector and the dual-polarized double radiator of radiation in the polarization that is orientated offset from perpendicular+45 ° and-45 °.The multiband antenna of showing in the document is included in the first radiator cross dipole of radiation in the frequency band.The radiator of following frequency band is dipole square (Dipolquadrate), and a cross dipole wherein is set in each dipole square.By the corresponding shaping of reflector, can change the radiation characteristic of first and second radiators, but can't optimize the radiation characteristic that goes up frequency band and following frequency band simultaneously.
In described open source literature DE19823749A1, generally should preferably not be not more than λ/2 greater than λ corresponding to the dipole and the distance between the reflector of the wavelength that depends on frequency accordingly of dipole.The lower limit of distance should preferably not be not less than λ/8 less than λ/16 between dipole element and the reflector.
WO03/065505A1 also discloses a kind of lobe shape structure of double radiator.According to the disclosure document, the distance between bar-shaped radiation appliance and the reflector plane should be substantially equal to 1/8 to 1/4 of operation wavelength λ, and promptly corresponding double radiator is arranged on the zone before the reflector usually.
Summary of the invention
Therefore, the technical problem to be solved in the present invention provides a kind of antenna of working in a plurality of frequency bands, and it realizes the radiation characteristic of improvement in each frequency band.
This technical problem is to solve by the antenna according to independent claims.Extended mode of the present invention defines in the dependent claims.
Antenna according to the present invention comprises a plurality of reflectors that are arranged on conduction, and the radiator before the solid metal reflector preferably, and wherein reflector comprises a smooth plane, and this plane forms plane of reflection.Radiator comprises one or more radiation seamed edges (Strahlungskante) and/or one or more rod type element respectively, and they are major parts of double radiator and are also referred to as radiator structure or double radiator structure below sometimes.Radiator also lays respectively in the radiator plane of the radiation seamed edge that wherein is provided with radiator and/or rod type element, and wherein each radiator plane is parallel with the plane of reflection basically or at most with respect to tilt ± 5 ° angle of the plane of reflection.For radiation at least two frequency bands, first and second radiators are set, wherein one or more first radiators are arranged in first a common radiator plane, and one or more second radiators are arranged in second a common radiator plane, and their radiation in different frequency bands.At this, first radiator is worked in last frequency band, and second radiator is moving in the frequency band down.Antenna according to the present invention is characterised in that, the distance between first radiator plane and the plane of reflection equals 90% of distance between second radiator plane and the plane of reflection at least, and is the most high in 150%.
Especially for the radiator that is used for frequency band, the distance by making first radiator of in last frequency band, working near or greater than the distance of second radiator, improved radiation characteristic.
By solution according to the present invention, can realize special compact structure.At last by solution according to the present invention provide be used for radiation diagram, promptly be used for radiation diagram form and wherein be particularly useful for frequency band other implement possible.Thereby, in scope of the present invention, can particularly advantageously change half breadth, improve pre-characteristic/reverse characteristic (Vor-/Rueck-Verhaeltnis), and the side lobe attenuation of realizing improvement.
In a preferred embodiment of the present invention, first and second radiator plane are substantially the same with the distance of the plane of reflection.
Spaced apart for first radiator and the plane of reflection that will in last frequency band, work, in a particularly advantageous execution mode of the present invention, use with reflector to be connected and the preferred bearing of partially conductive at least.Wherein, first radiator is set on each bearing.Wherein, bearing can be called as platform or also can be called as auxiliary reflector, it has longitudinal extension and the horizontal expansion that is parallel to reflector on vertical and horizontal, and this longitudinal extension and horizontal expansion are greater than the cross section of base or corresponding double radiator symmetrical structure.
Preferably, bearing has bearing upper side conduction and that be preferably metal or platform on the side thereon, and first radiator is set respectively thereon.
At last, on the boundary seamed edge of bearing, promptly be arranged on so-called flange staggered on the circumferencial direction or flange-shape expansion on the preferred upper horizontal plane at bearing, wherein on bearing, corresponding radiator is supported on its base.Flange may be implemented as with respect to vertical direction with arbitrarily angled, for example with 20 ° of angles upwards and tilt to stretch out.But this flange also may be implemented as and is arranged in the bearing plane, in other words is parallel to the plane of reflection, approximate expansion bearing plane, outside outstanding flange.Equally, also deflection downwards of flange.In other words, flange can with position, any angle-from become with respect to the vertical direction of leaving the plane of reflection 0 °, for example about+10 ° up to become 180 °, for example 170 °-dihedral ground setting with respect to this vertical direction.At last, these flanges can only be arranged on the side wall sections on the bearing at each interval, thereby stay the angular zone of opening in the corner area between two adjacent ribs.Equally, flange also may be implemented as on the bearing around boundary or wall, wherein, corresponding radiator projects upwards by them.At last, can not use flange fully.
Preferably, flange-if present-and have specific vertically measuring and laterally brightness, optimize with realization.Being positioned at radiator on the bearing can utilize its base and be installed on bearing or the upper side by the formed platform of bearing.But the bearing of corresponding radiator and base also can integratedly be constructed, and wherein corresponding height is provided with conducting surface or the metal covering that passes base from the side, and this conducting surface or metal covering can be called as bearing upper side, tableland or auxiliary reflector.
In another embodiment of the present invention, in the vertical view of reflector, one or more first radiators are arranged on central authorities in second radiator respectively basically.Preferably, in addition, one or more first radiators are arranged on the central authorities between adjacent second radiator respectively basically in the vertical view of reflector.Therefore, the setting in the vertical view corresponds essentially to the setting shown in the document DE19823749A1.
Except first and second radiator plane, can also there be other the radiation seamed edge that wherein is provided with first and/or second radiator and/or the radiator plane of rod type element.In this way, can with radiation field further with antenna match.
One or more second radiators for example can be the dual polarization dipole squares that is formed by 4 dipoles, as shown in the DE19823749A1 that has mentioned.Second radiator especially can also be cup-shaped dual polarised radiation device, and it has radiation seamed edge or rod type element on the far-end away from reflector.Second radiator especially can be taked at any execution mode described in the document WO 03/065505A1.Preferably, cup-shaped radiator comprises the plane component of a plurality of comprehensive symmetries (vollfl chig), and this plane component tilts and/or extends perpendicular to the plane of reflection, and its boundary seamed edge away from the plane of reflection is the radiation seamed edge.In another preferred embodiment, in the vertical view of reflector, one first radiator is set respectively in one or more dipole squares and/or cup-shaped radiator.
Preferably dual-polarized cross dipole of one or more first radiators and/or vector doublet radiator (Vektordipolstrahler).The cross dipole for example is illustrated among the DE19823749A1, and the structure of vector doublet radiator is open by document DE19860121A1.
In another embodiment of the present invention, reflector have reflector vertically on the sidewall that extends and tilt and/or vertically stretch out from the plane of reflection, a plurality of radiators wherein are set between sidewall.
Usually, sidewall (being positioned at outside or some inwardly setting alternately) possible on the reflector can be set on corresponding height and the angular direction, so that form radiation diagram thereon.
In another execution mode according to antenna of the present invention, the centre frequency of following frequency band is to go up half of centre frequency of frequency band basically.In addition, preferably, a plurality of first and second radiators be set at reflector vertically on, wherein above each second radiator, basically the center first radiator is set, and between every pair of second adjacent radiator, first radiator is set the center basically respectively.
In another embodiment, all first radiators are set in first radiator plane, and all second radiators are arranged in second radiator plane.
According to antenna of the present invention mobile radio antenna preferably, its frequency band especially is arranged in GSM, CDMA and/or UMTS mobile radio frequency range for example.
Description of drawings
Describe embodiments of the invention in detail by accompanying drawing below, wherein
Fig. 1 illustrates one section vertical view according to an execution mode of antenna of the present invention;
Fig. 2 illustrates along the profile of the I-I line of Fig. 1;
Fig. 3 illustrates the end view of bearing shown in its Fig. 2 that is provided with radiator;
Fig. 4 illustrates one section vertical view according to second execution mode of antenna of the present invention;
Fig. 5 illustrates along the profile of the II-II line of Fig. 4;
Fig. 6 illustrates the non-side cross-sectional view according to the antenna of Fig. 5;
Fig. 7 illustrates one section vertical view according to the 3rd execution mode of antenna of the present invention;
Fig. 8 illustrates along the profile of the III-III line of Fig. 7;
Fig. 9 illustrates the non-side cross-sectional view according to the antenna of Fig. 8.
Embodiment
Fig. 1 is illustrated in one section vertical view of the reflector panel 1 that extends on the directions X with vertical view, this section is called reflector 1 below for short.Usually, X is vertically corresponding to the vertical direction of antenna.Reflector comprises 1a at the bottom of the smooth basically reflector substrate, forms plane of reflection E at the bottom of this reflector substrate.Reflector panel also comprises two sidewall 1b that extend on vertical or vertical direction X, these sidewalls can rise perpendicular to the plane of reflection E of reflector or with the plane of reflection angledly, and can limit reflector on its outer edges, but equally also can inwardly be provided with alternately from outward flange.In Fig. 1, two kinds of radiators are set on reflector 1.The first radiator type is made of the doublet radiator 2 of vector doublet radiator form.3 such radiators shown in Figure 1, they are with the adjacent setting on vertical X of identical spacing, and in last frequency band, for example radiation in the scope of 1700MHz to 2700MHz.The structure of vector doublet radiator and working method are known in the art, and especially are documented among the document DE19860121A1, and its whole disclosures are quoted at this and as the application's content.
The vector doublet radiator comprises the base 2a that extends perpendicular to plane of reflection E respectively, this base is made of symmetrical structure 2b, this symmetrical structure forms like this, the axial cross section that promptly will extend on the direction of plane of reflection E from above and be orientated perpendicular to reflector 1 usually-for example have length lambda/4-to insert among the base 2a, wherein axial cross section is connected with radiator or radiator element conductively away from plane of reflection ground.Wherein, axial cross section 2e almost arrives plane of reflection E always, promptly up to so-called base substrate 2f (Fig. 2).Therefore, in this embodiment, the distance between dipole element and the reflector plane is approximately λ/4.Be provided with in the upper end of each symmetrical structure 2b two vertical mutually and be parallel to the lead 2c of plane of reflection E, wherein each front end at lead 2c is provided with half dipole parts (Halbdipol-Komponent) 2d, and these parts are vertically set on the respective wire and also are parallel to plane of reflection E and extend.The vector doublet radiator is constructed as the cross dipole aspect electric, and it forms wherein dipole half radiation (Fig. 1) in the first polarization plane P1 or P2 by two orthogonal dipole half ones respectively.For the vector dipole, this radiator structure that forms dipole half one aspect electric is formed by two mutual vertical orientated half dipole parts 2d respectively from configuration aspects, wherein the misconnection of the end of the lead of the symmetry of each dipole half one of formation guiding like this or basic or near symmetrical makes corresponding half lead of adjacent orthogonal dipole half one always be electrically connected.Carry out the electric feed-in of each radially relative dipole half one for first polarization with second polarization decoupling of its quadrature with closing.Therefore, the vector doublet radiator forms the dipole square in configuration aspects, but aspect electric with+45 ° of polarization P1 or-45 ° of polarization P2 radiation.
Form dipole structure at last at dipole shown in the radiator 2 or half dipole parts, its radiator element is collectively referred to as radiator structure 102, and this radiator structure forms and influence the radiation diagram of this radiator type basically.
As second kind of doublet radiator, use second radiator of dual-polarized cup-shaped doublet radiator 3 forms.This second doublet radiator is fully known equally in the prior art, and especially is documented among the WO03/065505A1, and its whole disclosures are quoted at this and as the application's content.In the embodiment shown, cup-shaped doublet radiator 3 comprises 4 plane component 3a of symmetry comprehensively, and wherein the boundary edge 3f (referring to Fig. 2) away from 1a at the bottom of the reflector substrate of plane component especially forms doublet radiator element or the radiator structure 103 very important to radiation diagram by its radiator structure upper side.By feed, wherein approximate at least homophase of the feed on the feed placement and near symmetrical ground carry out plane component 3a on 4 feed placement 3b.Make thus doublet radiator 3 can with doublet radiator 2 similarly with+45 ° of polarization P1 or-45 ° polarization P2 radiation.Described in WO03/065505A1, realize respectively like this feed on the feed-in position 3b, make outer conductor be electrically connected with the end of corresponding radiator element 3a respectively, inner wire is electrically connected with the adjacent ends of the radiator element 3a that adjacent half-twist is orientated.So, between described two this radiator elements, also having one by disclosed crack of above-mentioned open source literature or slit 3g, this slit extends to always and is positioned at the following base section adjacent with plane of reflection E.
Each plane component 3a of radiator 3 is constructed to trapezoidal, and basically at the bottom of the reflector substrate 1a extend obliquely.Plane component 3a also has chamfering 3c from the extended edge of reflector substrate slanted floor, wherein forms the crack between adjacent chamfering.By this moulding and the structure of plane component, realize the cup-shaped of doublet radiator 3.Be noted that at this and in antenna according to the present invention, also can use the cup-shaped doublet radiator of other type.In particular, plane component 3a needn't form comprehensively symmetrically, but can have the frame structure that is formed by a plurality of rods.In particular, all doublet radiator forms of being introduced among the application WO03/065505A1 that mentions in the above can consider to be used for the present invention.
The radiation in following frequency band of second radiator 3, the centre frequency of wherein play frequency band are half of centre frequency of first radiator 2 substantially, promptly for example can radiation in the 900MHz frequency band, and promptly in 800MHz arrives the scope of 1000MHz for example.
In by embodiment illustrated in figures 1 and 2, except 3 radiators 2, the radiator 3 that is used for the corresponding radiator structure 103 of having of lower band is shown also at the corresponding radiator structure 102 of having of high frequency band.Wherein, in vertical view, the middle radiator 2 that is used for high frequency band is set at central authorities in the second cup-shaped radiator 3, wherein this radiator 2 is arranged on the bearing 4, make the plane of lead 2c and especially half dipole parts 2d and therefore radiator element or radiator structure 102 be positioned in the embodiment shown on the top edge of cup-shaped radiator 3, this will explain with reference to Fig. 2 below in detail.Bearing 4 is preferably made by electric conducting material, or has conductive surface layer at least.That is to say that bearing has the upper side that is parallel to the plane of reflection or is basically parallel to plane of reflection E at least.Therefore, bearing upper side 4f forms tableland 4f, and it also partly is called auxiliary reflector 4f below.The size of auxiliary reflector 4f is greater than the base cross section.
As shown in the figure, in the embodiment shown, substantial rectangular or square ground form the bearing upper side, wherein can have gap (shown in the vertical view of Fig. 1) in the corner area.Wherein, the longitudinal extension of bearing upper side or tableland 4f on the directions X of reflector 1 or vertical direction, have equal λ/4 at least, maximum equals vertically measuring of λ, the wavelength when wherein the minimum value of λ equals the greatest lower band (lower frequency limit) of frequency band.Any value when the maximum of λ equals the frequency band upper limit (highest frequency) of transmission band on relating to.Correspondingly, select horizontal expansion perpendicular to the X of reflector or the physical dimension of vertical direction.The preferred value of the vertical or horizontal extension of lower limit of tableland surface diameter is λ/4 in frequency during for 2.7GHz for example.
As can be seen from the figure, measuring of the longitudinal extension of bearing upper side on X or Y direction is substantially equal to the height of bearing on the plane of reflection.That is to say that this length for example can be λ/4, with the preferred distance identical (be preferably λ/4) of doublet radiator element with respect to the plane of reflection or bearing plane.We can say in a word, doublet radiator with respect to the distance of reflector plane or bearing upper side generally in λ/16 between the λ, preferably between λ/8 to λ/2, i.e. preferably about λ/4 (open on the principle) by DE19823749A1.Wherein, the λ ordinary representation is about the value of frequency band to be transmitted, preferably the minimum value of λ (corresponding to the coboundary of frequency band).That is to say, the doublet radiator element and the plane of reflection or and height of support between distance preferably in λ/6 to the scope of λ/4.
From accompanying drawing as can be seen, on the interface of bearing upper side 4f or tableland 4f or edge 4g, so-called flange 4a is set, below will be to its detailed introduction.But can also emphasize that here bearing upper side 4f can have different shapes, for example square, rectangle, general n limit shape or arc, promptly circle or the like, the size that wherein makes seating plane is respectively greater than the size in the base cross section of corresponding radiator.
Fig. 2 illustrates along the profile of the I-I line of Fig. 1.The structure that Fig. 2 is shown specifically the structure of cup-shaped radiator 3 once more and is arranged on bearing 4 wherein.Especially as can be seen, each plane component 3a is made up of a section 3d following, that be inclined upwardly extension, adjoin with the section 3e that extends perpendicular to plane of reflection E upper end at this section 3d, and this section 3e terminates in boundary edges 3f place, and they form the dipole radiation element of radiator 3.In addition as can be seen, bearing 4 has the sidewall 4b of downward contraction, and is empty in inside.In bearing central authorities vector doublet radiator 2 is set, also extends the flange 4a that is inclined upwardly and extends from bearing in addition.
By using this bearing, make the half dipole parts that are arranged on the vector doublet radiator 2 on the bearing be positioned at the first radiator plane S1, this first radiator plane is positioned at by near the formed radiator plane S2 of the boundary edges 3f of cup-shaped radiator 3.In the embodiment shown, planar S 1 is higher than planar S 2.But can consider that also planar S 1 is the same high with planar S 2 basically, or is lower than planar S 2 slightly.In particular, the distance between planar S 1 and the plane of reflection E is in 75% to 150% the scope of distance between planar S 2 and the plane of reflection E.But this lower limit also can be 80%, 90%, 100% or even 110%.The corresponding upper limit can be 140%, 130% or 120% equally.In addition, the 3rd radiator plane S3 is shown also in Fig. 2, the dipole of left and right vector doublet radiator 2 is arranged in this plane.Planar S 3 is lower than planar S 1 and S2 basically, because a left side and right radiator 2 are not positioned on the bearing.But can consider that also left and right radiator 2 also is set on the corresponding bearing 4, will describe in detail this below.Wherein, it can also be seen that from Fig. 2 that the bearing upper side is a bit larger tham the distance of bearing upper side with respect to planar S 3 at least with respect to the distance on reflector plane, the dipole element that is arranged in the doublet radiator that is used for high frequency band on the reflector is positioned at planar S 3.In other words, under radiator assemblies 2 was set directly at situation on the reflector, the distance between tableland height and the reflector plane E equaled or is a bit larger tham the distance of the doublet radiator of radiator assemblies 2 with respect to tableland upper side or reflector plane E at least.
By use will radiation in last frequency band doublet radiator 2 and the isolated bearing of plane of reflection E, can advantageously influence radiation characteristic, especially go up the half breadth of radiation in the frequency band.By correspondingly forming bearing 4, this bearing can also be with second reflector that acts on the radiator that is positioned on the bearing, thus can further positive impact radiation characteristic.
Be arranged on be positioned at radiator 3 central authorities that are used for low-frequency band on the bearing 4, in vertical view the radiator that is used for high frequency band 2 with regard to its radiator element, radiator element upper side or its radiator structure 102, at least be arranged in the zone of this radiator with respect on the height of plane of reflection E greater than 0.4 λ, wherein λ is the mean wavelength of centre frequency that is provided for the radiator 2 of high frequency band scope.But this lower limit also can be 0.6 λ, 0.8 λ, 1.0 λ or 1.2 λ or bigger for example.On the other hand, should be with respect to the distance of plane of reflection E greater than 2 λ yet, wherein this upper limit also can be 1.8 λ, 1.6 λ or 1.4 λ.λ still goes up the centre frequency of frequency band.If the radiator 102 that for example is used for high frequency band is in the radiation of 1800MHz scope, radiator assemblies 103 radiation in the 900MHz frequency band range (ratio is 2: 1), then be positioned at equal height or at least when approximately equal or height about equally at for example planar S 1 and S2, being used for the doublet radiator element of radiator assemblies 103 of lower band and the distance between the E of reflector plane should be greater than λ, should be less than 0.2 λ yet.Wherein, λ still is the wavelength of frequency band to be transmitted, preferably corresponding to the minimum wavelength of the highest frequency of lower band.
Fig. 3 illustrates the side detailed view of bearing 4 shown in Figure 2 once more, and wherein bearing 4 is provided with vector doublet radiator 2.Especially as can be seen, bearing 4 has the closing structure that comprises 4 side 4b from Fig. 3, and wherein from the horizontal plane of bearing upper side 4d, already mentioned 4 flange 4a make progress obliquely in the embodiment shown and stretch out.So radiator 2 utilizes its base to be installed in upper bracket or plane, tableland.
Wherein, from Fig. 3, when especially combining with Fig. 1 and Fig. 2 as can be seen, bearing has roughly tetragonal structure in vertical view, the boundary of its side is parallel to the half dipole parts of vector dipole 2.Sidewall (flange) 4b that projects upwards from this side spacing of bearing is not perpendicular to the bearing plane earth in the embodiment shown, and therefore is not orthogonal to plane of reflection E ground yet and extends, but reach out to setting with an angle.This angle is preferably greater than 10 ° also preferably less than 40 °.This angle [alpha] is especially for to become (Fig. 2) about 20 ° with respect to vertical direction.In addition, sidewall 4a is not closed around ground yet, but at the corner area split shed, especially can find out from the vertical view of Fig. 1.
But this angle [alpha] also can be other arbitrary values, thus flange or flange-shape expansion 4a even can be positioned at the bearing upper side or by the plane of the formed tableland 4f of bearing upper side, thus and can explain according to the mode of auxiliary reflector expansion.In addition, this flange 4a is with respect to bearing upper side 4f even can curl downwards for example roughly up to vertical bending.In other words, flange 4a and be parallel between the plane of plane of reflection E angle ± 85 ° or ± change between 80 ° and 0 °, its flange is parallel to the plane of reflection.
Flange is preferably λ/10 to λ from the bearing 4s up to its free-ended longitudinal extension, wavelength when the wavelength when wherein the minimum value of λ equals the upper limit (highest frequency) of transmission band, the maximum of λ equal the lower limit (low-limit frequency) of frequency band on to be transmitted.Identical size is determined also to be suitable for for the horizontal expansion of flange, and wherein these values are preferred values.
Preferably, flange is constructed symmetrically and is orientated on each bearing.But sometimes, certain asymmetric also be favourable, this relate to its with bearing on another flange or its size compare angled orientation.At last, but also can remove flange fully, perhaps these flanges adjoin with the interface wall or the sidewall 4b that center on.
Fig. 4 illustrates the vertical view according to second execution mode of antenna of the present invention.In the execution mode of Fig. 4, use with Fig. 1 in identical radiator 2 and 3, and these radiators also with in the execution mode of Fig. 1 are set up in vertical view in the same manner.But different with the execution mode of Fig. 1 is, left and right first radiator is arranged on the bearing, wherein this bearing have closed, be the seating plane 4c of rectangle basically, this seating plane has corresponding qualification and around the boundary line 4d of this seating plane.The bearing of radiator 2 is also corresponding to the bearing that also uses in Fig. 1 execution mode in the middle of being provided with.
Fig. 5 illustrates along the cross section view of the line II-II of Fig. 4.Especially as can be seen, left support abutment is identical with right support abutment, and has the shape that is different from intermediate support.A left side and right support abutment form the tower that has upwardly extending sidewall basically, wherein construct the bearing platform that has around the boundary sidewall 4c of closure at the upper side of tower.In addition, left and right pillar has the bearing 4 that has raise, and first radiator 2 is set respectively on bearing.Similar with intermediate support, a left side and right support abutment have cavity at lower area, and this cavity is limited by the sidewall 4b of pointed contraction.Be to have only two radiator plane S1 and S2 in the execution mode of Fig. 5 with the difference of Fig. 1 execution mode, wherein all 3 first radiators 2 are set among the first radiator plane S1.Also can with Fig. 5 choice structure differently, make to be positioned at outside radiator element or the height of support of radiator structure 102 for example is below or above the radiator element or the radiator structure 102 of the radiator 2 that is arranged on radiator 3 central authorities slightly, thereby the radiator plane S3 that is used for not being arranged on the radiator 2 in the radiator that is used for lower band is different with radiator plane S1.
Fig. 6 illustrates the end view identical with Fig. 5, but the end view of Fig. 6 is not a cross section view.At this especially as can be seen, a left side and right support abutment have sidewall diagonally extending, closed, thereby its formation side, promptly at the tower of the upward opening of circumferencial direction closure is provided with corresponding radiator on the tableland of this tower or seating plane 4d.
Fig. 7 illustrates the vertical view according to the 3rd execution mode of antenna of the present invention.The difference of the antenna of Fig. 7 and the antenna of Fig. 1 is, uses second radiator of another kind of type.In addition, the execution mode of Fig. 7 is identical with the execution mode of Fig. 1, describes in detail thereby omit.
In Fig. 7, use dipole square 3 ' to replace cup-shaped radiator 3, wherein the dipole square comprises 4 bar-shaped dipoles that are made of two dipoles, half 3a ' of respectively.Wherein, ground, the sidewall 1b of each dipole and reflector 1 angle at 45 extends.In this way, similar with the cup-shaped radiator of Fig. 1, the dipole square is with+45 ° of polarization P1 and-45 ° of polarization P2 radiation.The radiator structure of dipole square form is known in the art very early.For example, reference literature DE19823749A1 merges into its whole disclosures by this reference the application's a part.
Fig. 8 illustrates along the cross sectional side view of the line III-III of Fig. 7.As can be seen, similar with Fig. 2, there are 3 different radiator plane S1, S2, S3.A left side and right first radiator 2 are set in nethermost radiator plane S3.The dipole of doublet radiator 3 is arranged in the radiator plane S2 that is higher than radiator plane S3.The dipole that is arranged on the radiator 2 on the bearing 4 is arranged in uppermost radiator plane S1.As can be seen, the distance between radiator plane S1 and the S2 is obviously greater than according to the distance in the execution mode of Fig. 2 in Fig. 8.In this should be noted that execution mode at Fig. 8, left and right first radiator also can be arranged on the bearing equally, thereby they also are arranged in radiator plane S1.At this, can use with Fig. 5 in be used for a left side and the identical bearing of right first radiator, but the height of bearing and in the matched of Fig. 8 midplane S1.
Fig. 9 illustrates the similar non-cross sectional side view with Fig. 8.In the figure as can be seen, Zhong Jian bearing 4 is identical with the bearing shown in Fig. 3.But here, the bearing that is used to be positioned at outside radiator 102 can be constructed such that in height the radiator height S3 on the radiator height S1 is slightly different at least with respect to plane of reflection E.
Different with illustrated embodiment, can the radiator 2 that is used for high frequency band be configured to the vector dipole yet, but for example be configured to dipole square (with seemingly) or dipole cross (Dipolkreuzen) form according to the radiator class types among the embodiment of Fig. 7 to Fig. 9.Therefore, be not limited to use specific doublet radiator or doublet radiator shape.
The radiator plane S1 that is explained, S2 and S3 are arranged essentially parallel to plane of reflection E.But in individual cases, radiator element or radiator structure 102,103 also can depart from and tilt less than ± 5 ° angle with respect to this reflector plane.Therefore, under possible situation, at least on the partial-length of reflector, radiator plane S1, S2, S3 depart from such angle less than ± 5 ° with respect to the plane of reflection.
All the time with reference to following content, promptly the distance between the radiator plane of being explained and thus the distance between radiator element and the radiator structure 102,103 in coherent radiation device 2,3,3 ' zone, have the distance of being explained at least.So, also can use in principle by a plurality of antenna assemblies of forming with the reflector segment of the reflector segment of an angular range chamfered edge that for example comprise in a circumferential direction, so that can make the radiator element that is positioned on it with different azimuth radiation.
Therefore, by illustrated embodiment, can describe according to antenna of the present invention, especially according to mobile radio antenna of the present invention, that is: by following feature
-a plurality of doublet radiators 2 are set; 3,3 ', promptly be arranged on reflector 1 at least one first doublet radiator 2 and at least one second doublet radiator 3,3 ' before,
-this at least one first and at least one second doublet radiator 2; 3,3 ' has corresponding first or corresponding second radiator structure 102,103, and this radiator structure comprises radiator element under possible situation,
-this at least one first doublet radiator 2 is with the lower band radiation, and this at least one second doublet radiator 3,3 ' is with higher relatively frequency band radiation,
-be used at least one first radiator structure 102 or the upper side of this at least one first radiator structure 102 and at least one second doublet radiator 3 that the distance between the plane of reflection E equals to be used for lower band of the doublet radiator 2 of high frequency band, between the upper side of at least one of 3 ', second radiator structure 103 or this at least one second radiator structure 103 and the plane of reflection E at least 75% of distance and the highest by 150%
-in particular, this at least one first doublet radiator 2 is arranged on the bearing 4, and the bearing upper side 4d of bearing is arranged on a plane of reflection E determining deviation place before,
-in particular, the bearing 4 of partially conductive has bearing upper side 4d at least, and its area is greater than the base cross section of position first doublet radiator 2 thereon.
In addition, be proved to be advantageously, be used at least one first radiator structure 102 of at least one first doublet radiator 2 of high frequency band and the distance between the plane of reflection E for the centre frequency of at least one first doublet radiator 2 that is used for high frequency band greater than 0.4 λ, and preferably less than 2 λ.
Claims (29)
1. one kind is used for antenna, the especially mobile radio antenna of working at least two frequency bands, has following feature:
Have and be arranged on reflector (1) a plurality of doublet radiators (2 before; 3,3 '), described a plurality of doublet radiator (2; 3,3 ') have radiator element or radiator structure (102,103),
At described a plurality of doublet radiators (2; 3,3 ') in, at least one doublet radiator (3,3 ') radiation in lower band, at least one radiator (2) radiation in than the high frequency band of described lower band,
It is characterized in that,
Be used for radiator structure, radiator element or the radiator element upper side (102) of at least one doublet radiator (2) of high frequency band and at least one doublet radiator (3 that the distance between the plane of reflection (E) equals to be used for lower band, 3 ') between radiator structure, radiator element or radiator element upper side (103) and the plane of reflection (E) at least 75% of distance and the highest by 150%
Be used for radiator structure, radiator element or the radiator element upper side (102) of at least one doublet radiator (2) of high frequency band and the distance between the plane of reflection (E) for the centre frequency of the radiator that is used for high frequency band greater than 0.4 λ, and preferably less than 2 λ.
2. antenna according to claim 1 is characterized in that:
The radiator element or the radiator structure (102) that are used at least one radiator (2) of high frequency band are positioned at radiator plane (S1),
The radiator element or the radiator structure (103) that are used at least one doublet radiator (3,3 ') of lower band are arranged in second radiator plane (S2),
Wherein the distance between first radiator plane (S1) and the plane of reflection (E) is greater than the distance between second radiator plane (S2) and the plane of reflection (E).
3. antenna according to claim 1 is characterized in that:
The radiator element or the radiator structure (102) that are used at least one radiator (2) of high frequency band are positioned at radiator plane (S1),
The radiator element or the radiator structure (103) that are used at least one doublet radiator (3,3 ') of lower band are arranged in second radiator plane (S2),
Wherein the distance between first radiator plane (S1) and the plane of reflection (E) equals the distance between second radiator plane (S2) and the plane of reflection (E) substantially.
4. according to one of aforesaid right requirement described antenna, it is characterized in that, one or more first radiators (2) that are arranged in first radiator plane (S1) are separately positioned on the bearing (4) of area greater than the base cross section of corresponding doublet radiator (2), and described bearing links to each other with reflector (1) and preferred partially conductive at least.
5. antenna according to claim 4 is characterized in that, described bearing (4) has bearing upper side conduction and that be preferably metal (4d) on the side thereon, and wherein first radiator (2) is positioned on the described bearing upper side.
6. antenna according to claim 5 is characterized in that, at least a portion of described bearing upper side comprise a plurality of perpendicular to or favour the flange (4a) that the plane of reflection extends, described flange is provided with in a circumferential direction in vertical view interlacedly.
7. according to claim 5 or 6 described antennas, it is characterized in that, described flange (4a) with respect to the plane that is parallel to the plane of reflection (E) become-90 ° and+90 °, especially less than the arbitrarily angled ground orientation between ± 80 °.
8. according to each described antenna in the claim 5 to 7, it is characterized in that, be arranged on the flange (4a) that bearing (4) is gone up or bearing upper side (4d) is gone up on the circumferencial direction and be provided with at each interval, perhaps with around the boundary sidewall interconnect.
9. according to each described antenna in the claim 4 to 8, it is characterized in that, in the vertical view of reflector (1), be arranged on the border that first radiator (2) on the bearing (4) is positioned at bearing (4).
10. according to each described antenna in the claim 4 to 9, it is characterized in that one or more first radiators (2) that are arranged in first radiator plane (S1) are constructed integratedly with corresponding bearing (4).
11., it is characterized in that in the vertical view of reflector (1), one or more first radiators (2) are arranged on centre in second radiator (3) respectively basically according to each described antenna in the aforementioned claim.
12., it is characterized in that in the vertical view of reflector (1), one or more first radiators (2) are arranged on the central authorities between adjacent second radiator (3) respectively basically according to one of aforesaid right requirement described antenna.
13. according to one of aforesaid right requirement described antenna, it is characterized in that, other doublet radiator (2) is positioned on the reflector (1), comprises the radiator structure (102) that is arranged at least one the 3rd radiator plane (S3) or the upper side (102) of corresponding radiator structure.
14., it is characterized in that one or more second radiators are the dual-polarized dipole squares (3 ') that are made of 4 dipoles according to one of aforesaid right requirement described antenna.
15. according to one of aforesaid right requirement described antenna, it is characterized in that one or more second radiators are cup-shaped dual polarised radiation devices (3), it has radiation seamed edge (3f) or rod type element on the far-end away from reflector.
16. antenna according to claim 15, it is characterized in that, described cup-shaped radiator (3) comprises the plane component (3a) of a plurality of comprehensive symmetries, described plane component tilts or extends perpendicular to the plane of reflection (E), and its boundary seamed edge away from the plane of reflection (E) is radiation seamed edge (3f).
17. according to each described antenna in the claim 14 to 16, it is characterized in that, in the vertical view of reflector (1), in one or more described dipole squares (3 ') and/or cup-shaped radiator (3), first radiator (2) be set respectively.
18., it is characterized in that one or more first radiators (2) are dual-polarized cross dipole and/or vector dipole according to one of aforesaid right requirement described antenna.
19. according to one of aforesaid right requirement described antenna, it is characterized in that, described reflector (1) has the sidewall (1b) of vertically going up extension and tilting and/or vertically stretch out from the plane of reflection (E) at reflector (1), a plurality of radiators (2 wherein are set between described sidewall (1b), 3,3 ').
20. according to one of aforesaid right requirement described antenna, it is characterized in that, the size of described first doublet radiator (2) is determined to be it in 800MHz radiation in the following frequency band of 1000MHz, the size of second doublet radiator (3,3 ') is determined to be it in 1700MHz radiation in the frequency band of 2700MHz.
21. according to one of aforesaid right requirement described antenna, it is characterized in that, a plurality of first and second radiators (2,3,3 ') be adjacent to be arranged on reflector (1) vertically and/or transversely, first radiator (2) wherein is set in the top of each second radiator (3) with hitting exactly basically, and between every pair of adjacent second radiator (3), first radiator (2) is set the center basically.
22. according to one of aforesaid right requirement described antenna, it is characterized in that all first radiators (2) are set in first radiator plane (S1), all second radiators (3,3 ') are set in second radiator plane (S2).
23., it is characterized in that the frequency band of described antenna is arranged in GSM, CDMA and/or UMTS mobile radio frequency range according to one of aforesaid right requirement described antenna.
24. according to one of aforesaid right requirement described antenna, it is characterized in that, described first radiator plane (S1) and second radiator plane (S2) are parallel with the plane of reflection (E) basically, perhaps with respect to tilt at most+30 ° angle of the plane of reflection (E), and preferably tilt ± 5 ° at most.
25., it is characterized in that described bearing upper side (4d) is constructed to rectangle, square, n limit shape or arc according to each described antenna in the claim 4 to 24 in vertical view, especially circular.
26. according to each described antenna in the claim 4 to 25, it is characterized in that, described bearing upper side or bearing tableland (4d) have vertically measuring of the directions X that is parallel to reflector in vertical view or vertical direction, and/or has a horizontal expansion that is at least λ/4 and is λ to the maximum, wavelength when wherein the minimum value of λ is a greatest lower band (lower frequency) in last transmission band, the maximum of λ is the wavelength when the frequency band upper limit (highest frequency) of last transmission band.
27. according to each described antenna in the claim 4 to 26, it is characterized in that, described flange (4a) between the side that itself and bearing (4) adjoin, have up to its away from described bearing free-ended vertically and/or horizontal expansion, described λ/10 that extend in are between the λ, wavelength when wherein the minimum value of λ is corresponding to the frequency band upper limit (highest frequency) of last transmission band, the maximum of the λ wavelength during corresponding to the greatest lower band (low-limit frequency) of going up frequency band to be transmitted.
28. according to each described antenna in the claim 1 to 27, it is characterized in that, described bearing upper side (4f) be positioned at reflector plane (E) before greater than λ/16, be preferably greater than λ/8, and less than λ, preferably less than the distance of λ/2, wherein λ is the wavelength of high frequency band, preferably the minimum wavelength of high frequency band waiting for transmission.
29. according to each described antenna in the claim 1 to 28, it is characterized in that the distance between described bearing upper side (4f) and reflector plane (E) is equal to or greater than the radiator plane (S1) of radiator element (102) and the distance between the distance between the bearing upper side (4f) and/or radiator plane (S3) and reflector plane (E).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004057774.9 | 2004-11-30 | ||
| DE102004057774A DE102004057774B4 (en) | 2004-11-30 | 2004-11-30 | Mobile radio aerials for operation in several frequency bands, with several dipole radiator, in front of reflector, radiating in two different frequency bands, with specified spacing of radiator structure, radiator elements, etc |
| PCT/EP2005/012593 WO2006058658A1 (en) | 2004-11-30 | 2005-11-24 | Dual-band mobile radio antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101080845A true CN101080845A (en) | 2007-11-28 |
| CN101080845B CN101080845B (en) | 2014-08-27 |
Family
ID=35540477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200580034639.0A Active CN101080845B (en) | 2004-11-30 | 2005-11-24 | Dual-band mobile radio antenna |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1817815B1 (en) |
| KR (1) | KR101056296B1 (en) |
| CN (1) | CN101080845B (en) |
| AT (1) | ATE389957T1 (en) |
| DE (2) | DE102004057774B4 (en) |
| ES (1) | ES2301083T3 (en) |
| HK (1) | HK1111526A1 (en) |
| WO (1) | WO2006058658A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102217140A (en) * | 2008-09-22 | 2011-10-12 | 株式会社Kmw | Dual-frequency / polarization antenna for mobile-communications base station |
| WO2012162975A1 (en) * | 2011-09-07 | 2012-12-06 | 华为技术有限公司 | Dual-frequency dual-polarized antenna |
| CN104393422A (en) * | 2014-11-17 | 2015-03-04 | 京信通信系统（中国）有限公司 | Multi-frequency array antenna |
| CN110959228A (en) * | 2017-10-12 | 2020-04-03 | 华为技术有限公司 | Subreflector and feed device for dipoles |
| CN111989824A (en) * | 2018-07-05 | 2020-11-24 | 康普技术有限责任公司 | Multi-band base station antenna with radome impact cancellation features |
| CN112335120A (en) * | 2018-06-29 | 2021-02-05 | 上海诺基亚贝尔股份有限公司 | Multi-band antenna structure |
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| DE102007060083A1 (en) | 2007-12-13 | 2009-06-18 | Kathrein-Werke Kg | Multiple gaps-multi bands-antenna-array has two groups provided by emitters or emitter modules, where emitters are formed for transmitting or receiving in common frequency band |
| KR100960004B1 (en) * | 2008-02-18 | 2010-05-28 | 주식회사 에이스테크놀로지 | Multi band dual polarization antenna |
| KR101125180B1 (en) | 2009-11-17 | 2012-03-19 | 주식회사 케이엠더블유 | Method for installing radiator elements arranged in different planes and antenna thereof |
| CN103178332A (en) * | 2011-12-21 | 2013-06-26 | 东莞市晖速天线技术有限公司 | Miniaturized low-frequency oscillator and base station antenna with same |
| DE102012023938A1 (en) | 2012-12-06 | 2014-06-12 | Kathrein-Werke Kg | Dual polarized omnidirectional antenna |
| US9373884B2 (en) | 2012-12-07 | 2016-06-21 | Kathrein-Werke Kg | Dual-polarised, omnidirectional antenna |
| SE536968C2 (en) | 2013-01-31 | 2014-11-18 | Cellmax Technologies Ab | Antenna arrangement and base station |
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| SE536854C2 (en) * | 2013-01-31 | 2014-10-07 | Cellmax Technologies Ab | Antenna arrangement and base station |
| DE102013012305A1 (en) * | 2013-07-24 | 2015-01-29 | Kathrein-Werke Kg | Wideband antenna array |
| JP5745582B2 (en) * | 2013-09-02 | 2015-07-08 | 日本電業工作株式会社 | Antenna and sector antenna |
| KR101690085B1 (en) | 2013-11-05 | 2016-12-27 | 주식회사 케이엠더블유 | Multi-band multi-polarized wireless communication antenna |
| KR101756112B1 (en) * | 2013-11-05 | 2017-07-11 | 주식회사 케이엠더블유 | Antenna radiating element and multi-band antenna |
| DE102014014434A1 (en) | 2014-09-29 | 2016-03-31 | Kathrein-Werke Kg | Multiband spotlight system |
| DE102018120612A1 (en) | 2018-02-23 | 2019-08-29 | Kathrein Se | Multiband antenna arrangement for mobile radio applications |
| FR3131107A1 (en) * | 2021-12-20 | 2023-06-23 | Tdf | ANTENNA DEVICE WITH TWO DIPOLE ARRAYS AND ASSOCIATED COMMUNICATION SYSTEM |
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| US4081803A (en) * | 1975-11-20 | 1978-03-28 | International Telephone And Telegraph Corporation | Multioctave turnstile antenna for direction finding and polarization determination |
| US5485167A (en) * | 1989-12-08 | 1996-01-16 | Hughes Aircraft Company | Multi-frequency band phased-array antenna using multiple layered dipole arrays |
| KR0185962B1 (en) * | 1995-03-03 | 1999-05-15 | 구관영 | Antenna |
| DE19823749C2 (en) * | 1998-05-27 | 2002-07-11 | Kathrein Werke Kg | Dual polarized multi-range antenna |
| DE19860121A1 (en) * | 1998-12-23 | 2000-07-13 | Kathrein Werke Kg | Dual polarized dipole emitter |
| DE10064129B4 (en) * | 2000-12-21 | 2006-04-20 | Kathrein-Werke Kg | Antenna, in particular mobile radio antenna |
| DE10203873A1 (en) * | 2002-01-31 | 2003-08-14 | Kathrein Werke Kg | Dual polarized radiator arrangement |
-
2004
- 2004-11-30 DE DE102004057774A patent/DE102004057774B4/en not_active Expired - Fee Related
-
2005
- 2005-11-24 WO PCT/EP2005/012593 patent/WO2006058658A1/en active IP Right Grant
- 2005-11-24 ES ES05813618T patent/ES2301083T3/en active Active
- 2005-11-24 AT AT05813618T patent/ATE389957T1/en not_active IP Right Cessation
- 2005-11-24 EP EP05813618A patent/EP1817815B1/en active Active
- 2005-11-24 DE DE502005003394T patent/DE502005003394D1/en active Active
- 2005-11-24 KR KR1020077008876A patent/KR101056296B1/en not_active IP Right Cessation
- 2005-11-24 CN CN200580034639.0A patent/CN101080845B/en active Active
-
2008
- 2008-02-22 HK HK08101976.8A patent/HK1111526A1/en not_active IP Right Cessation
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102217140A (en) * | 2008-09-22 | 2011-10-12 | 株式会社Kmw | Dual-frequency / polarization antenna for mobile-communications base station |
| WO2012162975A1 (en) * | 2011-09-07 | 2012-12-06 | 华为技术有限公司 | Dual-frequency dual-polarized antenna |
| CN103098304A (en) * | 2011-09-07 | 2013-05-08 | 华为技术有限公司 | Dual-frequency dual-polarized antenna |
| CN103098304B (en) * | 2011-09-07 | 2016-03-02 | 华为技术有限公司 | Dual-band dual-polarized antenna |
| CN104393422A (en) * | 2014-11-17 | 2015-03-04 | 京信通信系统（中国）有限公司 | Multi-frequency array antenna |
| CN110959228A (en) * | 2017-10-12 | 2020-04-03 | 华为技术有限公司 | Subreflector and feed device for dipoles |
| US11201406B2 (en) | 2017-10-12 | 2021-12-14 | Huawei Technologies Co., Ltd. | Sub-reflector and feeding device for a dipole |
| CN112335120A (en) * | 2018-06-29 | 2021-02-05 | 上海诺基亚贝尔股份有限公司 | Multi-band antenna structure |
| CN112335120B (en) * | 2018-06-29 | 2023-09-19 | 上海诺基亚贝尔股份有限公司 | Multiband antenna structure |
| CN111989824A (en) * | 2018-07-05 | 2020-11-24 | 康普技术有限责任公司 | Multi-band base station antenna with radome impact cancellation features |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1817815B1 (en) | 2008-03-19 |
| ES2301083T3 (en) | 2008-06-16 |
| EP1817815A1 (en) | 2007-08-15 |
| ATE389957T1 (en) | 2008-04-15 |
| WO2006058658A1 (en) | 2006-06-08 |
| KR20070083723A (en) | 2007-08-24 |
| DE102004057774A1 (en) | 2006-06-01 |
| DE502005003394D1 (en) | 2008-04-30 |
| CN101080845B (en) | 2014-08-27 |
| DE102004057774B4 (en) | 2006-07-20 |
| KR101056296B1 (en) | 2011-08-11 |
| HK1111526A1 (en) | 2008-08-08 |
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