• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Antenna array arrangement for a multi-band antenna, comprising: a plurality of precursor dual band antenna elements (110) arranged for transmission / reception in a camp antenna frequency band and in a higher antenna frequency band, a plurality of first single band antenna elements (102) arranged for transmitting / receiving in said high band dual antenna. and said single band antenna elements (102) are arranged in a row, at least two first single band antenna elements (102) being arranged adjacent to each other. Furthermore, the invention relates to a multiband antenna comprising at least one such antichamber. (Fig. 3)
    公开号:SE1150395A1
    申请号:SE1150395
    申请日:2011-05-05
    公开日:2012-11-06
    发明作者:Per-Anders Arvidsson；Jesper Uddin
    申请人:Powerwave Technologies Sweden；
    IPC主号:
    专利说明:

    Although this type of antenna array arrangement has proven useful in modern wireless communication systems, for example in base station antennas, they have certain disadvantages.
    One such disadvantage is that prior art arrangements as shown in Fig. 1 require a certain distance between the elements depending on the frequency used as described above. For this reason, prior art arrangements are suitable for antenna configurations in that the center frequency of the higher frequency band is approximately twice or less than the center frequency of the lower frequency band.
    If the center frequency of the higher frequency band is more than twice the center frequency of the lower frequency band, the distance between the elements of the higher frequency band is large, which can result in unwanted burrs.
    Fig. 2 shows another antenna array arrangement according to prior art where two different types of antenna elements are arranged in two different arrays. The antenna elements for a lower frequency band (790-960 MHz) are arranged in the left array and the antenna elements for a higher frequency band (2.3-2.7 GHz) are arranged in the right array as shown in Fig. 2. Thus, the two the arrays together a dual band antenna array.
    The disadvantage of the configuration in Fig. 2 is that the width of this antenna arrangement is substantial, which leads to an awkwardly large construction with high weight. Furthermore, such arrangements suffer from asymmetric horizontal / azimuth radiation as well as directional errors.
    There is therefore a need for an improved antenna array arrangement for multiband antennas in the prior art.
    BRIEF SUMMARY OF THE INVENTION For this reason, an object of the present invention is to provide an antenna array arrangement which completely or partially minimizes and / or solves the disadvantages of antenna array arrangements according to the prior art. More specifically, the object of the present invention is to provide an antenna array arrangement which makes it possible to support dual band and single band elements where there is a large distance in the frequency range between a lower and a higher frequency and / or where the higher frequency is more than twice higher than the lower frequency. Another object of the invention is to provide an antenna array arrangement which can be constructed less bulky and which takes up less space than solutions according to the prior art. A further object of the invention is to provide an alternative antenna array arrangement compared to the prior art.
    According to an aspect of the invention, said object is achieved with an antenna array arrangement for a multi-band antenna, comprising: - a number of first dual band antenna elements arranged for transmitting / receiving in a lower antenna frequency band and in a higher antenna frequency band, - a number of first single band antenna elements antenna frequency bands, said first dual band antenna elements and said single band antenna elements being arranged in a row, at least two first single band antenna elements (102) being arranged adjacent to each other.
    Various embodiments of the above antenna array arrangement are defined in the dependent claims 2-12.
    Furthermore, the present invention relates to a multiband antenna comprising at least one antenna array arrangement according to the invention.
    The present invention provides an antenna array arrangement which allows less distance between the antenna elements and thereby avoids unwanted burrs. This also means that the antenna construction can be made less bulky and smaller than solutions according to prior art, which results in narrower and cost-effective antenna constructions with reduced weight. The present invention is particularly suitable for antenna applications where there is a large distance in the frequency range between the lower and the higher frequency.
    An important aspect of the invention is that the inter-antenna element distance for both the lower antenna frequency band and the higher antenna frequency band is different, i.e. "Non-uniform distance" in the antenna array in order to accommodate different types of antenna elements in such a way that the effective element distance (average distance) in the array is such that unwanted grating globes are avoided in both bands. Other implications of the invention are that electrical performance will be more consistent compared to the prior art, e.g. undesirable effects where horizontal radiation peaks of the two frequency bands are different and distorted azimuth radiation patterns.
    Additional advantages and uses of the present invention are set forth in the following detailed description of the present invention.
    BRIEF DESCRIPTION OF THE FIGURES The accompanying figures are intended to clarify and explain various embodiments of the present invention in which: Fig. 1 shows an antenna array arrangement according to the prior art; Fig. 2 shows an antenna array arrangement according to another prior art; Fig. 3 shows an embodiment of an antenna array arrangement according to the present invention; Fig. 4 shows another embodiment of an antenna array arrangement according to the present invention; Fig. 5 shows another embodiment of an antenna array arrangement according to the present invention; Fig. 6 shows another embodiment of an antenna array arrangement according to the present invention; Fig. 7 shows in top view an embodiment of a multiband antenna according to the invention without a housing; and Fig. 8 shows the embodiment of the multiband antenna of Fig. 7 in perspective view; Fig. 9 is a sectional view of the first and second reactor units of a common reactor structure; Fig. 10 shows the backs, in perspective view, of the first and second reactor units when they are not connected to each other; Fig. 11 shows the rear side, in perspective view, of an embodiment of a composite common reactor structure; Fig. 12 shows a front side, in elevated view, of an embodiment of a common reactor structure; Fig. 13 shows a rear view of the embodiment of Fig. 12; and Fig. 14 shows a rear view of an embodiment of a multiband antenna according to the present invention; DETAILED DESCRIPTION OF THE INVENTION To achieve the above and further objects, the present invention relates to an antenna array arrangement, and preferably to an antenna array arrangement for multiband antennas arranged for wireless communication systems, such as GSM, GPRS, EDGE, WiMax, UMTS, LTE, LTE system. An embodiment of such an antenna array arrangement is shown in Figure 3.
    The antenna array arrangement according to the present invention comprises a number of dual band 101 and single band antenna elements 102. The dual band elements 101 are arranged for transmitting / receiving in two different frequency bands, i.e. in a lower antenna radio frequency band and a higher antenna radio frequency band, while the single band antenna elements 102 are arranged for transmitting / receiving in the higher of the two mentioned radio frequency bands. The antenna elements are arranged in a row / array as shown in Fig. 3 and at least two single band elements 102 are arranged adjacent to each other. However, more than two single band members 102 may be arranged adjacent to each other.
    Two such single band antenna elements 102 are illustrated by a dotted circle in Fig. 3. This means that at least two single band elements 102 are arranged adjacent to each other without any other antenna element placed between the two single band antenna elements 102 in the row.
    Thus, the dual band 101 and single band antenna elements 102 are irregularly arranged in the row and not alternately (or evenly) arranged as prior art arrangements shown in Figure 1. Thus, the effective inter-element distance can be kept low in the antenna array in order to avoid unwanted burrs. In addition, it is not necessary to have more than one row / array (or column) of antenna elements, which means that wide antenna constructions can be avoided, which saves space.
    According to an embodiment of the invention, the at least two single-band antenna elements 102 are arranged between two dual-band antenna elements 101, as also shown in Fig. 3. Preferably, the distance d; between the centers of the at least two single band antenna elements 102 more than half the wavelength of the center frequency of the higher antenna frequency band, and preferably between 0.6-0.9 times the wavelength of the center frequency of the higher antenna frequency band. Furthermore, according to a further embodiment, the distance d; between the centers of the at least two first single band antenna elements 102 0.6-0.8 times the wavelength of the center frequency of the higher antenna frequency band and the distance between the dual band antenna elements and the single band antenna elements 0.8-1.0 times the wavelength of the center frequency of the higher antenna frequency band.
    According to one embodiment, the center frequency of the higher frequency band is preferably more than 2 times higher than the center frequency band of the lower frequency band. More specifically, the type of dual band 101 and the type of single band antenna element 102, i.e. the lower and higher frequency bands, in the range: 790 to 960 MHz and 2.3 to 2.7 GHz; 698 to 894 MHz and 2.3 to 2.7 GHz; 698 to 894 MHz and 3.6 to 3.8 GHz; or 790 to 960 MHz and 3.6 to 3.8 GHz. Thus, the ratio around the first center frequency of the first is 2.86, 3.14, 4.65 and 4.22 for these embodiments. The number of single band antenna elements arranged between the dual band antenna elements may be fl than two, Lex. three or four. Figs. 4-6 show further embodiments of with different present invention inter-antenna element distances.
    Fig. 7 shows an embodiment of a triple band base station antenna according to the present invention without the housing seen from above, and Fig. 8 shows the embodiment of Fig. 7 in perspective view.
    As shown in the figures, the triple band antenna comprises two parts having different antenna array element configurations, which together form a single row / array of antenna elements. The dotted lines in Figs. 7 and 8 illustrate where the two antenna parts are electrically and in this case also mechanically connected / connected.
    This arrangement further includes a number of other types of dual band antenna elements 103 and other types of single band antenna elements 104, which are arranged alternately with respect to each other so that each second antenna element is a second dual band 103 or second single band elements 104 as shown in the lower part of FIG. 7 and 8. The second type of dual band antenna elements 103 are arranged for transmitting / receiving in two different frequency bands, i.e. in the lower radio frequency band (the same lower frequency band as for the first type of dual band antenna element 101) and in an intermediate radio frequency band, while the second type of single band antenna element 104 is arranged for transmitting / receiving in the intermediate frequency band. The center frequency of the first type of dual band 101 and the first type of single band antenna element 102, i.e. the lower and higher frequency bands are in the range 790 to 960 MHz and 2.3 to 2.7 GHz, respectively; while the center frequency of the second dual band 103 and second single band antenna elements 104, i.e. the lower and intermediate frequency bands are in the range 790 to 960 MHz and 1710 to 2170 MHz, respectively, so that a trip band antenna is formed. The antenna elements used can e.g. be patch antenna elements or dipoles or any other suitable construction.
    Since the embodiment in Figures 7 and 8 are formed by two antenna parts having two different types of dual band and single band elements, the reflector structure of such a triple band antenna will also be described in the following.
    The reactor according to this embodiment comprises a first reactor unit 1 and at least one second reactor unit 2. The first reactor unit 1 has a first reactor structure arranged for the lower antenna frequency band and at least the higher antenna frequency band, and the second reactor unit of the lower reactor unit at least the intermediate antenna frequency band.
    The first 1 and second 2 reactor units are electrically connected to each other so that together they form a common reactor structure R arranged for the lower, intermediate and higher antenna frequency bands. As a result, the first 1 and second 2 reactor units have a reactor structure arranged for at least one common antenna frequency band, in this case the lower antenna frequency band.
    It is therefore to be understood that the common rectifier R may comprise more than two rectifier units. However, two or more reactor units which together form a common reactor R shall have a reactor structure arranged for at least one common antenna frequency band fc.
    Such a reactor has good control for multiband antennas. This is especially the case with multi-band antennas that transmit in a number of antenna frequency bands where the frequency bands are at a significant distance from each other in the frequency range. Another advantage of such a common rectifier R is that a large and / or complex rectifier structure for pattern strips can be assembled with two or two rectifier parts having simple structures and thereby simplifying and reducing the cost of manufacturing such rectifiers, and make the transport of such reactors easier. This also implies that a high degree of freedom is available to the antenna designer when he has to design rejectors for multiband antennas, since the designer can combine different reactor structures to obtain a common reactor structure.
    Furthermore, a reactor structure arranged for a specific antenna frequency band in this description means that the reactor structure is arranged such that a transmitting antenna having such a reactor meets one or more of the requirements for different reactor parameters according to the prior art. The reactor parameters are usually specified for different applications and can refer to horizontal radiation width, front-to-back lobe ratio, cross-polarization discrimination, door-to-door tracking, etc. To achieve this, the reactor structure has a specific shape and may include protective walls, baffles, corrugations and / or current traps, etc. for controlling the radiation of the antenna. Typically, such parameters can be specified as, horizontal radiation width (half power / -3dB) 65 or 90 degrees; front-to-tail lobe ratio 25-30 dB (+/- 30 degrees sector); cross-polarization discrimination 10-15 dB (worst case in +/- 60 degrees sector); port-to-portfolio <2dB (worst case +/- 60 degrees sector).
    Fig. 9 shows in cross section first 1 and second 2 rector units of a common rector structure R. The first reector unit 1 is shown on the left side and the second rector unit 2 on the right side in Fig. 9. The dotted rectangles illustrate different antenna elements, and the upper and the lower figure in Fig. 9 represents a section for different antenna elements arranged for transmission in different frequency bands. It should be noted that the first 1 and second 2 reactor units have different shapes, and from Fig. 9 it is clear that they have different shapes in section. The different shapes are due to the fact that the first 1 and second 2 reactor units are arranged for at least one different antenna frequency band.
    Fig. 10 shows partly, in a separate view, backs of the first 1 and second 2 reactor units with PCB etchings and antenna elements. On each reactor unit 1, 2, the antenna elements corresponding to the larger screen cage act in two frequency bands simultaneously; i.e. in frequency band f; and F; for the first rectifier 1, and f; and F; for the second reflector 2. The antenna elements corresponding to the smaller screen cage operate in a frequency band each; f; for the first rectifier 1 and f; for the second reactor 2. Corresponding ends 41, 41 'of the first 1 and second 2 reactor units, which are connected in use, are also shown in Fig. 10. The first 1 and second 2 reactor units are electrically connected so that together they form a common reflector structure R so arranged that the common reflector structure R satisfies one or more of the above-mentioned reflector parameters, e.g. provides a specific radiation width characteristic or front-to-back lobe ratio, etc.
    The electrical connection may be an indirect connection, such as a capacitive connection or a direct connection. A capacitive connection can be obtained with a non-conductive adhesive, e.g. tape or glue, between the first 1 and second 2 re ector units. A direct electrical connection can be obtained by welding, anodizing and riveting or by the use of a conductive adhesive.
    The common reflector R is in this case arranged for triple band antennas, the center frequencies (eg carrier frequencies) of the three bands being in the range 790 to 960 MHz for the lower antenna frequency band, the range 1710 to 2170 MHz for the intermediate antenna frequency band, and the interval 2 .3 to 2.7 GHz for the higher antenna frequency band. In addition, base station antennas in said wireless communication systems are often exposed to harsh environmental conditions, such as rain, snow, ice, strong winds, etc. Thus, an important aspect when designing such antennas is the mechanical rigidity and stability to withstand such conditions. The stability of the antenna depends more or less on the reactor design because the reactor is an important and integral part of the antenna design. For this reason, the first 1 and second 2 reactor units are further mechanically connected to each other according to another embodiment of the present invention.
    Fig. 11 shows in rear perspective view a reactor R according to the invention. The first 1 and second 2 reactor units are in this embodiment electrically and mechanically connected to each other by means of a pair of support rails 11, 11 ”and a coupling plate 13. It should be noted that the first 1 and second 2 reactor units are connected to each other end to end according to this embodiment, i.e. one end 41 of the first 1 reactor unit is connected to the corresponding end 41 'of the second 2 reactor unit. 10 15 20 25 30 35 10 Each of the support rails 11, 11 ”is mechanically connected to and extends along each opposite side of the first 1 and second 2 reactor units, respectively. According to this embodiment, the first 1 and second 2 reactor units have an extended platform and the same width.
    Preferably, the first 1 and second 2 reactor units are U-shaped in cross section, as shown in the figures. With this reactor design, each support rail 11, 11 'is L-shaped to fit the U-shape of the first 1 and second 2 reactor units, thereby further improving the rigidity and stability of the reactor R construction and also saving space.
    This embodiment is shown in Fig. 11.
    Figure 12 shows a front view of a common reactor structure for use with a multiband antenna according to the invention.
    To further improve electrical and / or mechanical connection / connection between the first 1 and second 2 reactor units, one or more coupling plates 3 can be provided for connecting the two units 1, 2. The coupling plates 13 can be arranged on the front and / or on the back of the common rectifier R, and extend over and be attached with the first 1 and second 2 rectifier units so as to provide a stable rectifier structure R.
    Preferably, the first 1 and second 2 reactor units are made of aluminum, e.g. by folding aluminum sheets or by extrusion, but may also be made of other suitable materials. The various reactor units, such as the first 1 and second 2 reactor units, the support rails 11, 11 °, the coupling plates 13 and the coupling elements 12 can be mechanically connected to each other by e.g. screwing, riveting, bolting, welding, etc. which provide a direct electrical connection.
    To further improve the mechanical stability and rigidity of the reactor R, one or more coupling elements 12 may be provided for electrical and mechanical connection of the support rails 11, 11 ”. The coupling elements are preferably arranged on the back of the reactor R so as not to affect the radiation of the antenna elements by being arranged on the front in front of the antenna elements. 10 15 20 25 30 35 ll A rectangular coupling element 12 with a cross is shown in Figs. 13 to 14. The cross shape improves the mechanical stability of the reactor. The coupling elements 12 in the figures also have four recesses to form the cross and thereby reduce the weight of the reactor but still provide a stable construction.
    It should also be noted that the first 1 and second 2 reactor units according to yet another embodiment comprise at least a pair of symmetrically arranged, partially enclosed cavities acting as current traps 31, 31 "to capture surface currents on the reactor, as shown in Fig. 9. In this In this case, the cavities shall be arranged at a quarter of the wavelength of the frequency used. The partially enclosed cavities preferably extend along the extent of the first 1 and second 2 reactor units in a suitable manner.
    The present invention further relates to a multiband antenna comprising at least one antenna array arrangement and at least one reflector described above. Fig. 14 shows a triple band base station antenna A for wireless communication systems according to the invention. In this multiband antenna, the first type of dual band element 101 and single band element 102 is associated with the at least a second reactor portion 2 and the second type of dual band antenna element 103 and second type single band element 104 is associated with the first reactor portion 1, which means that the associated reactor portion 1 is the main reactor structure for generating the radiation of a specific antenna element and is preferably arranged behind the specific antenna element.
    The person skilled in the art also realizes that the described antenna array arrangement does not depend on the polarization of the antenna elements but also works for antennas with e.g. vertical polarization, circular polarization or dual +/- 45 degree polarization.
    Finally, it is to be understood that the present invention is not limited to the embodiments described above but relates to and encompasses all embodiments within the scope of the appended independent claims.
    权利要求:
    Claims (28)
    [1]
    An antenna array arrangement for a multi-band antenna, comprising: - a plurality of first dual band antenna elements (110) arranged for transmission / reception in a lower antenna frequency band and in a higher antenna frequency band, - a plurality of first single band antenna elements (102) arranged for transmitting / receiving in said higher antenna, said first dual band antenna element (110) and said single band antenna element (102) being arranged in a row, characterized in that: at least two first single band antenna elements (102) are arranged adjacent to each other.
    [2]
    The antenna array arrangement of claim 1, wherein said at least two first single band antenna elements (102) are disposed between two first dual band antenna elements (101).
    [3]
    Antenna array arrangement according to claim 1 or 2, wherein the distance d; between the centers of said at least two first single band antenna elements (102) is more than half the wavelength of the center frequency of said higher antenna frequency band, and preferably between 0.6-0.9 times the wavelength of center frequency of said higher antenna frequency band
    [4]
    The antenna array arrangement of claim 3, wherein the distance d; between the centers of said at least two first single band antenna elements (102) is 0.6-0.8 times the wavelength of the center frequency of said higher antenna frequency band and the distance (101) and single band antenna elements (102) is 0.8-1.0 times the wavelength of the center frequency of between said first dual band antenna elements said first said at least higher antenna frequency bands
    [5]
    An antenna array arrangement according to any one of the preceding claims, wherein the distance d 1 between the centers of at least two first dual band elements (101) is more than half the wavelength of the center frequency of said lower frequency band.
    [6]
    An antenna array arrangement according to any one of the preceding claims, wherein the center frequency of said higher antenna frequency band is more than 2 times higher than the center frequency of said lower antenna frequency band. 5 10 15 20 25 30 35 13
    [7]
    An antenna array arrangement according to claim 6, wherein said lower and higher frequency bands do not overlap, and wherein said center frequency of said lower and higher antenna frequency bands is respectively in the ranges: - 790 to 960 MHz and 2.3 to 2.7 GHz; - 698 to 894 MHz and 2.3 to 2.7 GHz; - 698 to 894 MHz and 3.6 to 3.8 GHz; or - 790 to 960 MHz and 3.6 to 3.8 GHz.
    [8]
    An antenna array arrangement according to any one of the preceding claims, further comprising: - a number of second dual band antenna elements (103) arranged for transmission / reception in said lower antenna frequency band and in an intermediate antenna frequency band, and - a number of other single band antenna elements (104) arranged for transmitting / receiving said intermediate antenna frequency band.
    [9]
    The antenna array arrangement of claim 8, wherein said second dual band antenna elements (103) and said second single band antenna elements (104) are arranged in a row.
    [10]
    The antenna array arrangement second of claim 9, wherein said dual band antenna elements (104) and said second single band antenna elements (104) are alternately arranged.
    [11]
    An antenna array arrangement according to any one of claims 8-10, intermediate antenna frequency bands do not overlap with said lower and higher center frequencies of said antenna frequency bands; and wherein intermediate antenna frequency bands are in the range of 1710 to 2170 MHz.
    [12]
    Antenna array arrangement according to any one of the preceding claims, wherein said antenna elements (101, 102, 103, 104) are patch antenna elements or dipoles.
    [13]
    A multiband antenna comprising at least one antenna array arrangement according to any one of the preceding claims.
    [14]
    The multi-band antenna according to claim 13, further comprising a reactor, said reactor comprising a first reactor unit (1) and at least a second reactor unit (2), said first reactor unit (1) having a first reactor structure. arranged for said lower and intermediate antenna frequency bands; - said at least one second reactor unit (2) has a second reactor structure arranged for said lower and higher antenna frequency bands; and - said first reactor unit (1) and said at least one second reactor unit (2) being electrically connected so that said first reactor unit (1) and said at least one second reactor unit (2) together form a common reactor structure (R) arranged for said lower , intermediate and higher antenna frequency bands.
    [15]
    The multiband antenna according to claim 14, wherein said first reactor unit (1) and said at least one second reactor unit (2) are further mechanically connected to each other.
    [16]
    A multiband antenna according to claim 15, wherein said first rejector unit (1) and said at least one second rejector unit (2) are electrically and mechanically connected by means of a pair of support rails (11,11 ').
    [17]
    The multiband antenna of claim 16, wherein said first reactor unit (1) and said at least one second reactor unit (2) have an elongate shape, and said pair of support rails (11.11 °) are connected to and extend along each opposite side of said first reactor unit (1) and said at least one second reactor unit (2), respectively.
    [18]
    A multi-band antenna according to any one of claims 15-17, wherein said first rejector unit (1) and said at least one second rejector unit (2) have substantially the same width.
    [19]
    A multiband antenna according to any one of claims 15-18, wherein said first reactor unit (1) and said at least one second reactor unit (2) are substantially U-shaped in cross section.
    [20]
    A multiband antenna according to any one of claims 17-19, wherein said pair of support rails (1 1.1 1 ') are L-shaped. 10 15 20 25 30 35 15
    [21]
    A multiband antenna according to any one of claims 15 to 20, further comprising at least one coupling element (12) for electrically and mechanically connecting said pair of support rails (11,11 ”) to improve mechanical rigidity of the common reactor structure (R).
    [22]
    The multi-band antenna according to claim 21, wherein said at least one coupling element (12) is arranged at the rear of said common reactor structure (R) and mechanically connects said pair of support rails (11,11 ').
    [23]
    A multiband antenna according to any one of claims 21-22, wherein said at least one coupling element (12) is cross-shaped and comprises one or more recesses.
    [24]
    A multiband antenna according to any one of claims 15-23, wherein said first reactor unit (1) and said at least one second reactor unit (2) are electrically and mechanically connected by means of at least one coupling plate (13) arranged on the back and / or front of said common reactor structure. (R).
    [25]
    A multi-band antenna according to wherein said first one of claims 14-24, a reactor unit (1) and said at least one second reactor unit (2) comprise at least a pair of symmetrically arranged current traps (31, 31 ') each.
    [26]
    A multi-band antenna according to claims 14-25, wherein: - said first reactor unit (1) comprises at least a first pair of reactor elements (21) arranged to control the radiation pattern of said at least one intermediate antenna frequency band; and - said at least one second reactor unit (2) comprising at least a pair of second reactor elements (22) arranged to control the radiation pattern of said at least one higher antenna frequency band.
    [27]
    A multiband antenna according to any one of claims, wherein said first 14-26, reactor unit (1) and said at least one second reactor unit (2) have different shapes.
    [28]
    A multi-band antenna according to any one of claims 14-27, wherein: - said first dual band element (101) and said first single band element (102) are associated with said at least one second reector unit (2); and said second dual band element (103) and said second single band element (102) are associated with said first reactor unit (1).
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    法律状态:
    2018-01-02| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    SE1150395A|SE535830C2|2011-05-05|2011-05-05|Antenna array and a multi-band antenna|SE1150395A| SE535830C2|2011-05-05|2011-05-05|Antenna array and a multi-band antenna|
    EP12165156.6A| EP2521218B1|2011-05-05|2012-04-23|Antenna array arrangement and a multi band antenna|
    US13/454,984| US9030367B2|2011-05-05|2012-04-24|Antenna array arrangement and a multi band antenna|
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