Multiband antenna array for mobile applications

Description

[0001] The invention relates to a multiband antenna arrangement for mobile communication applications. Such multiband antenna arrangements comprise various radiators in order to support different mobile communication standards and / or frequency bands.

[0002] A multi-column, multi-band antenna array is known from DE 10 2007 060 083 A1. This array comprises various radiators that can be operated in different frequency ranges. For example, there are radiators that can be operated in a low frequency range and radiators that can be operated in a high frequency range. Radiators operating in low frequency ranges necessarily have larger dimensions than radiators operating in high frequency ranges. In the embodiment shown therein, a radiator operating in a high frequency range is integrated into a radiator operating in a low frequency range. The radiator operating in a high frequency range protrudes significantly beyond the radiator operating in a low frequency range. The antenna array shown therein can be used in various mobile communication systems.

[0003] A disadvantage of the multi-column multi-band antenna array from DE 10 2007 060 083 A1 is its still large size and the fact that Massive MIMO (multiple input, multiple output) operation is not possible.

[0004] WO 2018 / 032845 A1 discloses a multiband antenna with low-band radiators, high-band radiators, and an "intelligent" antenna array. Of the low-band radiators, the lowest radiator in each row surrounds several radiators of the "intelligent" antenna array from two adjacent rows. Furthermore, the upper low-band radiators each surround a high-band radiator.

[0005] EP 3 067 987 A1 discloses a multiband antenna arrangement with a reflector arrangement from which all radiators are spaced apart, two adjacent and longitudinally extending dual-polarized MIMO radiator rows, and a dual-polarized low-band radiator row, wherein each low-band radiator comprises four conductive radiator devices offset by 90° to each other which enclose a receiving space for the dual-polarized radiators of the first and second MIMO radiator rows.

[0006] The object of the present invention is therefore to create a multiband antenna arrangement for mobile communications applications that supports a variety of mobile communication standards or frequencies and that is still very compact and very easy to expand.

[0007] The problem is solved by the multiband antenna arrangement according to claim 1. Further developments of the multiband antenna arrangement according to the invention are specified in the dependent claims.

[0008] The multiband antenna arrangement according to the invention is suitable for the known mobile communication standards (PCS, PCN, GSM900, GSM1800, UMTS, Wi-Fi MAX, LTE, AMPS). In particular, Massive MIMO (also referred to as "MaMIMO") is supported in addition to MIMO. For this purpose, the multiband antenna arrangement comprises at least one first radiator arrangement, which includes at least one first and one second (Ma)MIMO radiator row. These (Ma)MIMO radiator rows are arranged adjacent to each other and extend longitudinally along the multiband antenna arrangement. The first MIMO radiator row comprises a plurality of dual-polarized radiators. The same applies to the second MIMO radiator row. Each of the dual-polarized radiators is configured to transmit and / or receive in two polarization planes perpendicular to each other in an upper frequency range. The polarization planes are oriented, in particular, at an angle of +45° above the horizontal and vertical.Furthermore, the at least one first radiator arrangement comprises at least one dual-polarized low-band radiator configured to transmit and / or receive in two mutually perpendicular polarization planes in a lower frequency range. A reflector arrangement is also provided, consisting of or comprising a common (e.g., one-piece) reflector or several individual reflectors. The dual-polarized radiators of the first and second MIMO radiator rows are spaced apart from this reflector arrangement. The same applies to the at least one dual-polarized low-band radiator. The at least one dual-polarized low-band radiator comprises at least four conductive radiator elements, which are arranged at least approximately (less than 5°, 4°, 3°, 2°, 1°, 0.5°, 0.2°) offset from each other by 90° and define a receiving area.In this recording chamber, which contains at least one dual-polarized low-band radiator, are: . a) at least one dual-polarized emitter from the first MIMO emitter row and at least one dual-polarized emitter from the second MIMO emitter row arranged; or b) at least two dual-polarized emitters from the first MIMO emitter row and at least two dual-polarized emitters from the second MIMO emitter row arranged.

[0009] The at least one first radiator array comprises at least one wideband radiator array located at the end of the first and second MIMO radiator arrays, extending the multiband antenna array longitudinally. The at least one wideband radiator array comprises a plurality of dual-polarized wideband radiators, each dual-polarized wideband radiator configured to transmit and / or receive in two mutually perpendicular polarization planes within a mid-frequency range. In addition, the dual-polarized radiators of the first and second MIMO radiator arrays may each have the following features: ▪ A first dipole radiator and a second dipole radiator are provided; ▪ The first dipole radiator comprises two dipole halves and the second dipole radiator comprises two dipole halves; ▪ The first dipole half of the first dipole radiator comprises a ground connection carrier and a dipole ground wing, wherein a first end of the dipole ground wing is connected to a first end of the ground connection carrier and wherein a second end of the ground connection carrier, opposite the first end, is arranged on at least one base body; ▪ The second dipole half of the first dipole radiator comprises a signal connection carrier with a first end and an opposite second end and a dipole signal wing, wherein a first end of the dipole signal wing is connected to the first end of the signal connection carrier;▪ The first dipole half of the second dipole radiator comprises a ground connection carrier and a dipole ground wing, wherein a first end of the dipole ground wing is connected to a first end of the ground connection carrier and wherein a second end of the ground connection carrier, opposite the first end, on which at least one base body is arranged; ▪ The second dipole half of the second dipole radiator comprises a signal connection carrier with a first end and an opposite second end and a dipole signal wing, wherein a first end of the dipole signal wing is connected to the first end of the signal connection carrier; ▪ The signal connection carrier of the first dipole radiator runs parallel or with a component predominantly parallel to the ground connection carrier of the first dipole radiator, and the signal connection carrier of the second dipole radiator runs parallel or with a component predominantly parallel to the ground connection carrier of the second dipole radiator;▪ The dipole signal wing and the dipole mass wing of the first dipole radiator run in opposite directions; ▪ The dipole signal wing and the dipole mass wing of the second dipole radiator run in opposite directions; ▪ The dipole signal wing of the second dipole radiator passes under the dipole signal wing of the first dipole radiator, or ▪ The dipole mass wing of the second dipole radiator passes under the dipole mass wing of the first dipole radiator, or ▪ The dipole mass wing of the first dipole radiator passes under the dipole signal wing of the second dipole radiator, or ▪ The dipole signal wing of the second dipole radiator passes under the dipole mass wing of the first dipole radiator.

[0010] It is particularly advantageous that the multiband antenna arrangement according to the invention comprises several MIMO radiator arrays (i.e., radiators that transmit and / or receive in an upper frequency range) and that a low-band radiator is simultaneously present, which can be used for transmitting and receiving in a lower frequency range. To achieve the most compact design possible, at least one, preferably at least two, dual-polarized radiators from different MIMO radiator arrays are arranged in the housing of this dual-polarized low-band radiator. This allows a large number of dual-polarized radiators to be used without significantly increasing the length of the multiband antenna arrangement, thus enabling massive MIMO operation.

[0011] The upper frequency range, i.e., that of the dual-polarized radiators of the first and second MIMO radiator rows, is in particular higher than 3.3 GHz, 3.4 GHz, 3.5 GHz, 4 GHz, 4.5 GHz, 5 GHz, 5.5 GHz, but preferably lower than 6.5 GHz, 6 GHz, 5.5 GHz, 5 GHz, 4.5 GHz, 4 GHz or 3.5 GHz.

[0012] In a preferred embodiment, several phase shifters are preferably provided to supply the radiators of the corresponding MIMO radiator arrays with a mobile communication signal at the correct phase. In principle, it would be possible to provide a connection to a phase shifter for each radiator of the first and second MIMO radiator arrays for each polarization plane. In this case, a first radiator of the first or second MIMO radiator array would have a feed point for the first polarization and a feed point for the second polarization. The feed point for the first polarization would be electrically connected to a terminal of the first phase shifter, and the feed point for the second polarization would be electrically connected to a terminal of the second phase shifter.In this case, the feed points of the radiators in a MIMO radiator array for the first polarization would be connected to different terminals of the same phase shifter. The feed points for the other polarization would also be electrically connected to different terminals of a second phase shifter. However, it would also be possible, in principle, to connect the feed points of at least two adjacent dual-polarized radiators in a MIMO radiator array to each other and then to a common terminal of the corresponding phase shifter. The cable length from the terminal of the respective phase shifter to the feed point of the respective radiator can vary.

[0013] In a preferred embodiment, a partition or partition arrangement is formed between the dual-polarized emitters of the first and second MIMO emitter rows. Furthermore, preferably, the individual dual-polarized emitters of the first MIMO emitter row extend equidistant from the reflector arrangement. The same can also apply to the second MIMO emitter row or to the dual-polarized emitters of all MIMO emitter rows.

[0014] Particularly preferably, the at least one first radiator arrangement comprises at least one wideband radiator row, which is arranged at the end of the first and second MIMO radiator rows and extends the multiband antenna arrangement longitudinally. The at least one wideband radiator row comprises a plurality of dual-polarized wideband radiators, each dual-polarized wideband radiator being configured to transmit and / or receive in two mutually perpendicular polarization planes in a mid-frequency range. This allows the multiband antenna arrangement to support additional mobile communication standards or frequency bands.

[0015] In a preferred embodiment, the multiband antenna arrangement comprises a second radiator arrangement. This arrangement is constructed in the same way as the first radiator arrangement described above. The first and second radiator arrangements are parallel to each other and therefore extend longitudinally along the multiband antenna arrangement. In principle, the first and second radiator arrangements can be arranged adjacent to each other. However, it would also be possible to include a third and / or a fourth radiator arrangement between the first and second radiator arrangements. The third and fourth radiator arrangements also comprise at least a first and a second MIMO radiator array, which are arranged adjacent to each other and again extend longitudinally along the multiband antenna arrangement. Preferably, however, the third and fourth radiator arrangements do not include a dual-polarized low-band radiator.A partition wall arrangement is preferably provided between the respective adjacent radiator arrangements in order to create decoupling or a certain directivity effect.

[0016] Various embodiments of the invention are described below by way of example with reference to the drawings. Identical objects have the same reference numerals. The corresponding figures in the drawings show in detail: Figures 1A and 1B: schematic representations of the multiband antenna arrangement according to the invention with a first and a second radiator arrangement; Figures 1C and 1D: schematic representations of the multiband antenna arrangement according to the invention with a first, a second, a third and a fourth radiator arrangement; Figure 2: an exemplary connection of a first polarization of a MIMO radiator array of a radiator arrangement to a phase shifter; Figure 3: a top view of part of an exemplary embodiment of the first and the second radiator arrangement; Figure 4: a spatial representation of the view from Figure 3 Figure 5: a side view of the example from Figure 3 Figures 6A, 6B: Top views of an embodiment of the multiband antenna arrangement according to the invention with four radiator arrangements; and Figures 7A, 7B, 7C: Different embodiments of a holding device for a radiator arrangement.

[0017] The Figures 1A to 1DThe figures show a schematic representation of various embodiments of the multiband antenna arrangement 1 according to the invention. Figures 1A and 1B The multiband antenna arrangement 1 is shown to comprise a first radiator arrangement 2a and a second radiator arrangement 2b. In the Figures 1C and 1D Figure 1 shows that the multiband antenna arrangement 1 comprises a first radiator arrangement 2a, a second radiator arrangement 2b, a third radiator arrangement 2c, and a fourth radiator arrangement 2d. The construction of the first radiator arrangement 2a is described below. The second radiator arrangement 2b has an identical construction. There are minor differences for the third and fourth radiator arrangements 2c and 2d, which are indicated at the relevant points in the diagram. Figures 1C and 1D will be explained in more detail.

[0018] The at least one first radiator arrangement 2a extends in the longitudinal direction 3 of the multiband antenna arrangement 1. In the mounted state of the multiband antenna arrangement 1 (especially on an antenna mast), a vertical direction can also be spoken of instead of the longitudinal direction 3.

[0019] The at least one first radiator arrangement 2a comprises at least one first and one second MIMO radiator row 4a, 4b (see also Figure 2These are arranged adjacent to each other and also extend in the longitudinal direction 3. The first MIMO radiator array 4a comprises a plurality of dual-polarized radiators 5a (preferably more than 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or more than 20), each of which is configured to transmit and / or receive in two polarization planes perpendicular to each other. The same applies to the second MIMO radiator array 4b. This also comprises a plurality of dual-polarized radiators 5b.

[0020] The first and second MIMO radiator rows 4a, 4b are in the Figures 1A to 1D represented with a hatched structure.

[0021] The first and second MIMO radiator arrays 4a and 4b are specifically designed for transmitting and / or receiving in an upper frequency range. The first and second MIMO radiator arrays 4a and 4b are particularly suitable for use in Massive MIMO systems.

[0022] The multiband antenna arrangement 1 also includes a reflector arrangement 9 on which the first MIMO radiator row 4a and the second MIMO radiator row 4b are arranged. The reflector arrangement 9 can consist of a single, continuous reflector or of several individual reflectors. These are electrically conductive.

[0023] The at least one first radiator arrangement 4a comprises at least one dual-polarized low-band radiator 6a, which is configured to transmit and / or receive in two mutually perpendicular polarization planes. This dual-polarized low-band radiator 6a is in the Figures 1A to 1Dwith rough points and shown in more detail in the following figures. The second radiator arrangement 2b also includes at least one such dual-polarized low-band radiator 6a.

[0024] This dual-polarized low-band radiator 6a is designed to transmit and / or receive in a lower frequency range. The lower frequency range of the at least one dual-polarized low-band radiator 6a lies below the upper frequency range of the dual-polarized radiators 5a, 5b of the first and second MIMO radiator rows 4a, 4b. Specifically, the lower frequency range is between 698 MHz and 960 MHz (+ / - 5%).

[0025] The at least one dual-polarized low-band radiator 6a of the first and the second radiator arrangement 2a, 2b is also arranged on the reflector arrangement 9 or spaced apart from the reflector arrangement 9.

[0026] The at least one dual-polarized low-band radiator 6a comprises at least four conducting radiator devices 10a, 10b, 10d and 10d as shown in Figure 2 These are shown. They are arranged at least approximately at 90° intervals from each other and define a recording space 11. The exact construction of the dual-polarized low-band radiators 6a will be described in more detail with reference to the later figures. With regard to Figure 2 It is further shown that a conductive radiator 10a is connected at a first end 19 to the inner conductor of a feeding coaxial cable, whereas the second radiator 10b, adjacent to the first end 19 of the first conductive radiator 10a, is connected at its first end to the outer conductor of this coaxial cable. Such feeding preferably takes place at all ends of the conductive radiators 10a to 10d.

[0027] The receiving space 11, defined by the emitter arrangements 10a to 10d, serves to receive at least one dual-polarized emitter 5a from the first MIMO emitter array 4a and at least one dual-polarized emitter 5b from the at least one second MIMO emitter array 4b. Preferably, however, at least two dual-polarized emitters 5a from the first MIMO emitter array 4a and at least two dual-polarized emitters 5b from the second MIMO emitter array 4b are arranged in the receiving space 11. The at least one first emitter array 2a could also comprise further MIMO emitter arrays. Some of their dual-polarized emitters would then also be arranged in the receiving space 11.

[0028] In Figure 2It is also shown that the at least one first radiator arrangement 2a comprises at least one further dual-polarized low-band radiator 6b. The at least one further dual-polarized low-band radiator 6b is arranged in the longitudinal direction 3 of the multiband antenna arrangement 1 at a distance from the at least one dual-polarized low-band radiator 6a. In a receiving chamber 11 of the at least one further dual-polarized low-band radiator 6b, at least one, preferably two (as in Figure 2 (shown) dual-polarized emitters 5a are arranged from the first MIMO emitter row 4a. The same applies to the second MIMO emitter row 4b.

[0029] A space 12 is formed between at least one dual-polarized low-band emitter 6a and at least one further dual-polarized low-band emitter 6b. At least one dual-polarized emitter 5a from the first MIMO emitter array 4a and at least one dual-polarized emitter 5b from the second MIMO emitter array 4b are also arranged in this space 12. In the illustrated embodiment from Figure 2 There are two dual-polarized radiators 5a and 5b, respectively. However, there could also be more. Preferably, no two dual-polarized low-band radiators 6a and 6b are arranged directly adjacent to each other without forming a separation space.

[0030] The low-band radiators Components 6a, 6b and the dual-polarized emitters 5a, 5b are preferably separate structures and not built together as a single unit. This means that they can be mounted sequentially on the reflector assembly 9.

[0031] With regard to Figure 2It can also be seen that the dual-polarized emitters 5a of the first MIMO emitter row 4a are arranged approximately along a straight line. The distances between the individual dual-polarized emitters 5a are approximately equal (+ / - 5%). The same applies to the dual-polarized emitters 5b of the second MIMO emitter row 4b. These are also arranged along a straight line, with the distances between the individual dual-polarized emitters 5b being approximately equal. In the exemplary embodiment, these two straight lines run from Figure 2 parallel to each other. Furthermore, the number of dual-polarized emitters 5a of the first MIMO emitter row 4a corresponds to the number of dual-polarized emitters 5b of the second MIMO emitter row 4b. In principle, the number could also differ.

[0032] The at least one dual-polarized low-band radiator 6a and the at least one further dual-polarized low-band radiator 6b are also arranged along a straight line. This line runs parallel to the lines of the dual-polarized radiators 5a and 5b of the first and second MIMO radiator rows 4a and 4b, respectively. In principle, there can be even more dual-polarized low-band radiators. The distance between two dual-polarized low-band radiators 6a, 6b in longitudinal direction 3 is preferably greater than 0.5 λ, 0.6 λ, 0.7 λ, 0.8 λ, 0.9 λ, 1 λ, 1.1 λ, 1.2 λ, 1.3 λ, 1.4 λ, 1.5 λ and is preferably less than 2 λ, 1.7 λ, 1.4 λ, 1.2 λ, 1 λ, 0.8 λ or 0.6 λ, where λ is the wavelength of the center frequency with respect to the frequency range in which the at least one dual-polarized low-band radiator 6a and the at least one further dual-polarized low-band radiator 6b are operated.

[0033] The dual-polarized emitters 5a of the first MIMO emitter row 4a and the dual-polarized emitters 5b of the second MIMO emitter row 4b comprise a feed point 13 for the first polarization and a feed point for the second polarization. In Figure 2Only the feed point 13 for the first polarization is shown. The multiband antenna arrangement 1 also includes a first phase shifter 14. The feed points 13 for the first polarization of at least two (immediately) adjacent dual-polarized radiators 5a of the first MIMO radiator array 4a are connected to each other. They are further connected to a common terminal 15 of the first phase shifter 14. The line length from this common terminal 15 of the first phase shifter 14 to the corresponding feed point 13 of the respective dual-polarized radiator 5a can be the same length or different lengths. In principle, it would also be possible for the feed points 13 for the first polarization of the dual-polarized radiators 5a of the first MIMO radiator array 4a to be electrically connected to different terminals 15 of the phase shifter 14.In this case, the first phase shifter 14 comprises as many connections 15 as there are dual-polarized radiators 5a in the first MIMO radiator array 4a. The first phase shifter 14 also includes a common connection 16, via which data streams can be received or transmitted. Depending on the position of a tap element 17, the phase shift between a signal on the common connection 16 and the individual connections 15 can be changed.

[0034] Not shown is a second phase shifter, electrically connected to the feed points for the second polarization of the dual-polarized emitters 5a of the first MIMO emitter row 4a. The same applies to the dual-polarized emitters 5b with respect to the first and second polarizations of the second MIMO emitter row 4b. For this purpose, there are a third and a fourth phase shifter. The same applies to the second emitter arrangement 2b, the third emitter arrangement 2c, and the fourth emitter arrangement 2d. Corresponding phase shifters are preferably also provided for the at least one dual-polarized low-band emitter 6a and the at least one further dual-polarized low-band emitter 6b. By changing the phase, the down-tilt angle can be adjusted. This allows the cell illumination to be modified.

[0035] In Figure 2The figure shows that the feed points 13 of the first or second polarization are connected to those of the at least two adjacent dual-polarized emitters 5a, 5b of the first or second MIMO emitter row 4a, 4b, which are located inside the recording space 11 or outside the recording space 11, in particular in the space space 12.

[0036] The at least one first radiator arrangement 2a comprises at least one wideband radiator row 7, which is arranged at the end of the first and the second MIMO radiator rows 4a, 4b and extends the multiband antenna arrangement 1 in longitudinal direction 3. Not shown is Figure 1that the at least one wideband radiator array 7 comprises a plurality of dual-polarized wideband radiators, each of the dual-polarized wideband radiators being configured in particular to transmit and / or receive in two mutually perpendicular polarization planes in a mid-frequency range. This mid-frequency range of the dual-polarized wideband radiators of the at least one wideband radiator array 7 lies above the lower frequency range of the at least one dual-polarized low-band radiator 6a, 6b and below the upper frequency range of the dual-polarized radiators 5a, 5b of the first and second MIMO radiator arrays 4a, 4b. The mid-frequency range is in particular higher than 1.3 GHz or 1.4 GHz or 1.427 GHz or 1.5 GHz or 1.6 GHz or 1.695 GHz, but preferably lower than 3 GHz or 2.8 GHz or 2.7 GHz or 2.690 GHz.

[0037] Preferably, the at least one first radiator arrangement comprises additional dual-polarized low-band radiators 6c. In the receiving space of each of these radiators, at least one of the dual-polarized wideband radiators of the at least one wideband radiator row 7 is arranged. Preferably, all low-band radiators 6a, 6b, 6c of the first radiator arrangement 2a are arranged on a straight line.

[0038] In Figure 1A It is also shown that the second radiator arrangement 2b likewise comprises at least one wideband radiator array 7. The same statements apply to this wideband radiator array 7 as were already made for the wideband radiator array 7 of the first radiator arrangement 2a. The at least one second radiator arrangement 2b also comprises additional dual-polarized low-band radiators 6c.

[0039] The dual-polarized wideband radiators of at least one wideband radiator series 7 can be divided into different groups 7a, 7b. In Figure 1A There is only one group. This means that the feed points for the first polarization of all dual-polarized wideband radiators of at least one wideband radiator row 7 are connected, at least indirectly (for example, via a phase shifter), to the same signal source. The same applies to the feed points for the second polarization. Thus, all feed points for the second polarization of all dual-polarized wideband radiators of at least one wideband radiator row 7 are connected, at least indirectly, to the same signal source. The signal sources for the first and second polarizations are different.

[0040] In Figure 1BIn contrast, another embodiment is shown. Here, the dual-polarized wideband radiators of at least one wideband radiator row 7 are divided into two groups 7a and 7b. The dual-polarized wideband radiators of the first group 7a are connected to a first signal source either indirectly (e.g., via a phase shifter) or directly via their feed points for the first polarization. In contrast, the dual-polarized wideband radiators of the second group 7b are connected to a second signal source either indirectly (e.g., via a phase shifter) or directly via their feed points for the first polarization. Similarly, the dual-polarized wideband radiators of the first group 7a are connected to a second signal source either indirectly (e.g., via a phase shifter) or directly via their feed points for the second polarization.via a phase shifter) or directly connected to a third signal source, whereas the dual-polarized wideband radiators of the second group 7b are connected with their feed points for the second polarization indirectly (e.g. via a phase shifter) or directly to a fourth signal source.

[0041] In Figure 1B This is represented by dividing the wideband radiator array 7 into two sub-areas, i.e., two groups 7a and 7b, with respect to the densely dotted area shown. In principle, the dual-polarized wideband radiators of at least one wideband radiator array 7 could be further subdivided into more than two groups 7a and 7b. This allows for the use of different mobile communication standards and / or frequencies, thus enabling site sharing.

[0042] The explanations that are relevant to the Figures 1A and 1BThe statements made regarding the first radiator arrangement 2a also apply to the second radiator arrangement 2b and regarding the Figures 1C and 1D also for the third emitter arrangement 2c and the fourth emitter arrangement 2d.

[0043] In the Figures 1C and 1D The third radiator arrangement 2c and the fourth radiator arrangement 2d are shown, which are arranged between the first radiator arrangement 2a and the second radiator arrangement 2b and also run along the longitudinal direction 3. These comprise at least a first and a second MIMO radiator array 4a, 4b, which are arranged adjacent to each other. A wideband radiator array 7 is also shown in the third and fourth radiator arrangements 2c and 2d. In contrast, the third and fourth radiator arrangements 2c, 2d do not have dual-polarized low-band radiators 6a, 6b, 6c.

[0044] In Figure 1DThe dual-polarized wideband radiators of the first group 7a of the first radiator arrangement 2a will be operated in a frequency range from 1427 MHz to 2690 MHz, whereas the wideband radiators of the second group 7b of the first radiator arrangement 2a will be operated in a frequency range from 1695 MHz to 2690 MHz. In contrast, the wideband radiators of both groups 7a and 7b of the third radiator arrangement 2c will all be operated in the frequency range from 1695 MHz to 2690 MHz. The same applies to the wideband radiators of both groups 7a and 7b of the fourth radiator arrangement 2d. The wideband radiators of the first group 7a of the second radiator arrangement 2b, on the other hand, are operated in the frequency range from 1427 MHz to 2690 MHz, whereas the wideband radiators of the second group 7b of the second radiator arrangement 2b are operated in the frequency range from 1695 MHz to 2690 MHz.

[0045] The multiband antenna arrangement 1 according to Figure 1AIt has a length of approximately 2 m (± 10%) and a width of approximately 37.8 cm (± 10%). The multiband antenna arrangement 1 according to Figure 1B It has a length of approximately 2.6 m (± 10%) and a width of approximately 37.8 cm (± 10%). The multiband antenna arrangement consists of Figure 1C It has a length of 2 m (± 10%) and a width of 48.8 cm (± 10%). The multiband antenna arrangement 1 from Figure 1D It has a length of 2.6 m (± 10%) and a width of 48.8 cm (± 10%). The housing of the multiband antenna arrangement 1 according to the invention is particularly preferably the same size as the housings already in use, so that older antenna arrangements can be easily replaced with the multiband antenna arrangement according to the invention.

[0046] In Figure 3The figure shows a top view of the first and second MIMO arrays 4a, 4b together with dual-polarized low-band arrays 6a, 6b. The dual-polarized arrays 5a, 5b of the first and second MIMO arrays 4a, 4b are dipole-like arrays (crossed dipoles) in this case. In principle, they could also be vector dipoles or square dipoles. The use of patching would also be possible. The same applies to the wideband arrays, which will be discussed later.

[0047] The dual-polarized emitters 5a, 5b of the first and second MIMO emitter series 4a, 4b are preferably constructed according to DE 10 2017 116 920. The dual-polarized emitters 5a, 5b are characterized in particular by the following features: A first dipole radiator and a second dipole radiator are provided; the first dipole radiator comprises two dipole halves and the second dipole radiator comprises two dipole halves; the first dipole half of the first dipole radiator comprises a ground connection carrier and a dipole ground wing, wherein a first end of the dipole ground wing is connected to a first end of the ground connection carrier and wherein a second end of the ground connection carrier, opposite the first end, can be arranged on at least one base body; the second dipole half of the first dipole radiator comprises a signal connection carrier with a first end and an opposite second end and a dipole signal wing, wherein a first end of the dipole signal wing is connected to the first end of the signal connection carrier;The first dipole half of the second dipole radiator comprises a ground connection carrier and a dipole ground wing, wherein a first end of the dipole ground wing is connected to a first end of the ground connection carrier, and wherein a second end of the ground connection carrier, opposite the first end, on which at least one base body can be arranged; the second dipole half of the second dipole radiator comprises a signal connection carrier with a first end and an opposite second end, and a dipole signal wing, wherein a first end of the dipole signal wing is connected to the first end of the signal connection carrier; the signal connection carrier of the first dipole radiator runs parallel or with a component predominantly parallel to the ground connection carrier of the first dipole radiator, and the signal connection carrier of the second dipole radiator runs parallel or with a component predominantly parallel to the ground connection carrier of the second dipole radiator;The dipole signal wing and the dipole mass wing of the first dipole radiator run in opposite directions; the dipole signal wing and the dipole mass wing of the second dipole radiator run in opposite directions; the dipole signal wing of the second dipole radiator passes under the dipole signal wing of the first dipole radiator, or the dipole mass wing of the second dipole radiator passes under the dipole mass wing of the first dipole radiator, or the dipole mass wing of the first dipole radiator passes under the dipole signal wing of the second dipole radiator, or the dipole signal wing of the second dipole radiator passes under the dipole mass wing of the first dipole radiator.

[0048] The shape of the dual-polarized low-band radiator 6a, 6b, 6c is cup-, goblet- or cognac-snifter-like and is characterized, for example, according to the preprint EP 1 470 615 B1 by the following features: The dual-polarized low-band radiator 6a, 6b, 6c has at least four conductive radiator assemblies 10a, 10b, 10c and 10d, which are arranged at least approximately 90° apart from each other; the four conductive radiator assemblies 10a, 10b, 10c and 10d are each attached and held by means of a holding device 18 relative to a base or the reflector assembly 9; the radiator ends 19 of two adjacent radiator assemblies 10a, 10b, 10c and 10d, which are adjacent to each other in pairs, are each isolated from each other at high frequencies; The emitter devices 10a, 10b, 10c and 10d have feed points 20, so that the emitter devices 10a, 10b, 10c and 10d are fed at least approximately in phase and approximately symmetrically between the respective opposing feed points 20;The four emitter devices 10a, 10b, 10c and 10d each have a conductive structure between their opposite emitter ends 19; and the emitter ends 19 of two adjacent emitter devices 10a, 10b, 10c and 10d, which are adjacent to each other in pairs, form the feed points 20.

[0049] The holding devices 18, by which the four conductive emitter devices 10a to 10d are held in position and, in particular, in a common plane (especially parallel to the reflector arrangement 9), are in this case designed as retaining walls. The retaining walls preferably extend perpendicular to the reflector arrangement 9. However, they can also be arranged inclined to the reflector arrangement 9, with the angle preferably being between 45° and 90°. More preferably, the angle is greater than 45° or 55°, 65°, 75° or 85° but less than 90° or 80°, 70°, 60° or 50° (the low-band emitters 6a, 6b widen outwards from the reflector arrangement 9). The holding devices 18 could also be designed as a retaining frame, with a corresponding recess 24 provided in the center. Such a design can be found, for example, in Figure 7AThe recess allows for material savings and thus weight reduction. The emitter devices 10a to 10d can comprise either a continuous electrically conductive surface between the respective emitter ends 19 or interruptions 25, which are bridged by corresponding capacitive couplings for the high-frequency mobile communication signals. The interruptions would therefore be invisible to the high-frequency mobile communication signals. Such coupling could be achieved by additional electrically conductive metal parts 26 (e.g., metal plates). Such a design is found in Figure 7BAgain. The metal parts 26 are not galvanically connected to the emitter devices 10a to 10d. This design and the corresponding arrangement of the metal parts 26 allow the emitter devices 10a to 10d to be subsequently tuned with respect to their operating frequencies. The metal parts 26 can be spaced apart by means of spacers and thus galvanically isolated from the emitter devices 10a to 10d, or dielectric spacers can be placed between them. A similar design with a not strictly necessary interruption 25 and recess 24 is also possible. Figure 7C to be removed. The holding device 18 is trapezoidal, with the side at the radiator ends 19 being longer than the side at the reflector arrangement 9. Overall, the low-band radiator 6a, 6b constructed in this way spreads out from the reflector arrangement 9.

[0050] A (balancing) slot 21 is formed between each of two holding devices 18 of different emitter devices 10a to 10d. This slot extends away from the reflector arrangement 9 in the direction of the respective emitter devices 10a to 10d. The two holding devices 18, between which the slot 21 is formed, are partially nested, so that the slot 21 has at least a single or, as shown, multiple angled (in particular 90°) course. The feed point 20 is preferably formed at the end of the slot 21 that is furthest away from the reflector arrangement 9.

[0051] In Figure 3 It is also shown that those of the dual-polarized emitters 5a from the first MIMO emitter row 4a, which are located within the recording spaces 11are arranged along a first straight line, and those of the dual-polarized radiators 5a from the first MIMO radiator row 4a that are arranged outside the recording spaces 11 (e.g., in the separation spaces 12) are arranged along a second straight line. In the example from Figure 3 The first straight line is spaced apart from the second straight line, but parallel to it. This means that there is a slight offset perpendicular to the longitudinal direction 3 between the respective dual-polarized emitters 4a of the first MIMO emitter row 5a, depending on whether they are arranged inside or outside the recording spaces 11. In principle, it would also be possible for the course of the two straight lines to be identical (i.e., without any offset). The same applies to the dual-polarized emitters 5b of the second MIMO emitter row 4b and to the further emitter arrangements 2b, 2c, and 2d.

[0052] Furthermore, it can be seen that the distance between two longitudinally adjacent dual-polarized emitters 5a of the first MIMO emitter row 4a is greater when one of these emitters 5a is located inside the recording space 11 and the other of these adjacent emitters 5a is located outside the recording space 11, than when both of the longitudinally adjacent emitters 5a are located inside or outside the recording space 11. This also applies to two longitudinally adjacent dual-polarized emitters 5b of the second MIMO emitter row 4b.

[0053] A partition arrangement 22 is arranged between the dual-polarized emitters 5a, 5b of the first and the second MIMO emitter row 4a, 4b. This partition arrangement 22 can consist of a plurality of partitions, at least one of which may be located within the recording space. 11The dual-polarized emitters 5a, 5b of the first and second MIMO emitter rows 4a, 4b, which are arranged in the space 12 between two dual-polarized low-band emitters 6a, 6b, 6c, can also be completely enclosed by a partition arrangement 22. This partition could be open at the corners. Preferably, there is no partition between the dual-polarized emitters 5a, 5b of the same MIMO emitter row 4a, 4b.

[0054] A further partition arrangement 23 is preferably arranged between two adjacent emitter arrangements 2a, 2b, 2c, 2d. The partition arrangement 22 and the further partition arrangement 23 originate from and project away from the reflector arrangement 9 and consist of or comprise an electrically conductive material.

[0055] The dual-polarized radiators 5a of the first MIMO radiator row 4a are arranged in the longitudinal direction 3 of the multiband antenna arrangement 1 without offset to the dual-polarized radiators 5b of the second MIMO radiator row 4b.

[0056] In Figure 4 is a spatial representation of the top view from Figure 3 The partition arrangements 22, which enclose the dual-polarized emitters 5a, 5b of the same MIMO emitter array 4a and 4b respectively, are at least partially open at their outer corner regions. Preferably, these partition arrangements 22 are also lower than the further partition arrangement 23, which separates the individual emitter arrangements 2a, 2b, 2c, 2d from one another.

[0057] In Figure 5 is a side view of the embodiment from Figure 3 The holding device 18 of the low-band radiators 6a, 6b, 6c is inclined and diverges with increasing distance from the reflector arrangement 9.

[0058] The dual-polarized emitters 5a of the first MIMO emitter row 4a extend the same distance from the reflector arrangement 9. The same applies to the dual-polarized emitters 5b of the second MIMO emitter row 4b. The dual-polarized emitters 5a, 5b of both MIMO emitter rows 4a, 4b can also extend the same distance from the reflector arrangement 9.

[0059] The dual-polarized emitters 5a, 5b of the first and / or second MIMO emitter row 4a, 4b, which are located within the recording space 11The reflectors 5a, 6b, 6c, arranged within the respective dual-polarized low-band radiators 6a, 6b, 6c, do not protrude outwards beyond these reflectors (i.e., further from the reflector arrangement 9). Preferably, they terminate flush with the reflector or are less than 5 cm, 4 cm, 3 cm, 2 cm, 1 cm lower. The dual-polarized radiators 5a, 5b can also be arranged on a pedestal. This pedestal can, for example, be made of a dielectric material.

[0060] In Figure 6AA top view of an embodiment of the multiband antenna arrangement 1 according to the invention, with four radiator arrangements 2a, 2b, 2c and 2d, is shown with respect to the respective MIMO radiator rows 4a, 4b. The dotted lines indicate that further dual-polarized radiators 5a, 5b and low-band radiators 6b, 6c (at least in the first and second radiator arrangements 2a, 2b) follow. This could, for example, be a top view of the embodiments according to the Figures 1C and 1D act.

[0061] The dual-polarized low-band radiators 6a, 6b, 6c preferably extend over the entire length in the longitudinal direction 3 of the first and second radiator arrangements 2a, 2b. This means that a corresponding number of dual-polarized low-band radiators 6a, 6b, 6c are used. In contrast, the MIMO radiator rows 4a, 4b and the wideband radiator rows 7 are arranged in series. When the multiband antenna arrangement 1 is assembled, these are stacked. The MIMO radiator rows 4a, 4b and the corresponding wideband radiator row 7 are then arranged vertically (i.e., at different distances from the ground) one above the other.

[0062] The individual radiator arrangements 2a, 2b, 2c, 2d are, in particular, parallel to each other. Each of these radiator arrangements 2a, 2b, 2c, 2d comprises at least two MIMO radiator arrays 4a, 4b, which can each be operated in two different polarizations, thus enabling massive MIMO operation.

[0063] Figure 6B is a more general representation of Figure 6AThe constructive details of the individual radiator arrangements 2a, 2b, 2c, 2d are not shown here. Instead, several dual-polarized low-band radiators 6a, 6b, etc., and several dual-polarized radiators 5a, 5b, etc., are shown. It can be seen that two dual-polarized low-band radiators 6a, 6b of the same radiator arrangement 2a, 2b are not arranged directly adjacent to each other. Between each pair of these dual-polarized low-band radiators 6a, 6b of the same radiator arrangement 2a, 2b, a space 12 is arranged, which is chosen to be large enough that at least one, preferably (at least or exactly) two, dual-polarized radiators 5a, 5b are arranged within it for each MIMO radiator array 4a, 4b. In particular, the number of dual-polarized emitters 5a, 5b in the space space 11 corresponds to the number of dual-polarized emitters 5a, 5b in the recording space 11.The dual-polarized emitters 5a, 5b of the respective MIMO emitter array 4a, 4b preferably always have the same distance between them. The same preferably also applies to the dual-polarized low-band emitters 6a, 6b of the emitter arrangements 2a, 2b. The dual-polarized low-band emitters 6a, 6b of different emitter arrangements 2a, 2b are in . Figure 6B The radiator arrangements 2c and 2d, which are free of dual-polarized low-band radiators 6a and 6b, are also spaced apart from each other such that the radiator arrangements 2c and 2d lie between them. There can be more than two, three, four, five, six, seven, eight, nine, or more than ten dual-polarized low-band radiators 6a and 6b in each of the radiator arrangements 2a and 2b. The dual-polarized low-band radiators 6a and 6b can extend over the entire length of the multiband antenna arrangement 1, which, due to the use of wideband radiator arrays 7, preferably does not apply to the dual-polarized radiators 5a and 5b.

[0064] The following highlights individual aspects of the multiband antenna arrangement 1: The first and second MIMO radiator rows 4a, 4b are a massive MIMO radiator row.

[0065] The lower frequency range of at least one dual-polarized low-band radiator 6a lies below the upper frequency range of the dual-polarized radiators 5a, 5b of the first and second MIMO radiator rows 4a, 4b.

[0066] The lower frequency range is from 698 MHz to 960 MHz and / or the upper frequency range is higher than 3.3 GHz or 3.4 GHz or 3.5 GHz or 4 GHz or 4.5 GHz or 5 GHz or 5.5 GHz but preferably lower than 6.5 GHz or 6 GHz or 5.5 GHz or 5 GHz or 4.5 GHz or 4 GHz or 3.6 GHz or 3.5 GHz.

[0067] The dual-polarized emitters 5a, 5b of the first and second MIMO emitter series 4a, 4b are patch emitter-like or dipole-like emitters, in particular vector dipoles, crossed dipoles or dipole squares.

[0068] The dual-polarized emitters 5a of the first MIMO emitter row 4a are arranged approximately along a straight line and / or the dual-polarized emitters 5b of the second MIMO emitter row 4b are arranged approximately along a straight line.

[0069] The number of dual-polarized emitters 5a of the first MIMO emitter row 4a corresponds to the number of dual-polarized emitters 5b of the second MIMO emitter row 4b.

[0070] In the space 12 there are the same number of dual-polarized emitters 5a, 5b arranged as in the recording space 11.

[0071] The distance between two adjacent dual-polarized emitters 5a of the first MIMO emitter row 4a is always the same and / or the distance between two adjacent dual-polarized emitters 5b of the second MIMO emitter row 4b is always the same.

[0072] The dual-polarized emitters 5a, 5b of the first and / or second MIMO emitter row 4a, 4b, which are arranged within the receiving space 11 of the at least one dual-polarized low-band emitter 6a, do not protrude beyond this at least one dual-polarized low-band emitter 6a.

[0073] The dual-polarized radiators 5a of the first MIMO radiator row 4a are arranged in the longitudinal direction 3 of the multiband antenna arrangement 1 without offset to the dual-polarized radiators 5b of the second MIMO radiator row 4b.

[0074] The invention is not limited to the described embodiments. Within the scope of the invention, all described and / or drawn features can be combined with one another in any way without deviating from the subject matter of the appended claims.

Claims

1. A multiband antenna array (1) for mobile radio applications having the following features: - at least one first radiating element array (2a) is provided, comprising at least one first and one second row (4a, 4b) of MIMO radiating elements, which are arranged adjacent to each other and extend in the longitudinal direction (3) of the multiband antenna array (1); - the first row of MIMO radiating elements (4a) comprises a plurality of dual-polarized radiating elements (5a) and the second row of MIMO radiating element (4b) comprises a plurality of dual-polarized radiating elements (5b), each dual-polarized radiating element (5a, 5b) being designed to transmit and / or receive in two mutually perpendicular polarization planes in an upper frequency range; - the at least one first radiating element array (2a) comprises at least one dual-polarized low-band radiating element (6a), which is designed to transmit and / or receive in two mutually perpendicular polarization planes in a lower frequency range; - a reflector array (9) is provided, from which: a) the dual-polarized radiating elements (5a, 5b) of the first and second rows (4a, 4b) of MIMO radiating elements; and b) the at least one dual-polarized low-band radiating element (6a) are spaced apart; - the at least one dual-polarized low-band radiating element (6a) comprises at least four directive radiating element devices (10a, 10b, 10c, 10d), which are arranged offset from each other by at least approximately 90° in each case and delimit an accommodation space (11); - in the accommodation space (11) of the at least one dual-polarized low-band radiating element (6a): a) at least one dual-polarized radiating element (5a) from the first row (4a) of MIMO radiating elements and at least one dual-polarized radiating element (5b) from the second row (4b) of MIMO radiating elements are arranged; or b) at least two dual-polarized radiating elements (5a) from the first row (4a) of MIMO radiating elements and at least two dual-polarized radiating elements (5b) from the second row (4b) of MIMO radiating elements are arranged; the following features are also provided: - the at least one first radiating element array (2a) comprises at least one row (7) of wideband radiating elements, which is arranged at the end of the first and second row (4a, 4b) of MIMO radiating elements and extends the multiband antenna array (1) in the longitudinal direction (3); the at least one row (7) of wideband radiating elements comprises a plurality of dual-polarized wideband radiating elements, each dual-polarized wideband radiating element being designed to transmit and / or receive in two mutually perpendicular polarization planes in a medium frequency range; characterized by the following features: - the at least one first radiating element array (2a) also comprises at least one further dual-polarized low-band radiating element (6b); - the at least one further dual-polarized low-band radiating element (6b) is spaced apart in the longitudinal direction (3) from the at least one dual-polarized low-band radiating element (6a) on the reflector array (9) and / or spaced apart from the reflector array (9); - in an accommodation space (11) of the at least one further dual-polarized low-band radiating element (6b) : a) at least one dual-polarized radiating element (5a) from the first row (4a) of MIMO radiating elements and at least one dual-polarized radiating element (5b) from the second row (4b) of MIMO radiating elements are arranged; or b) at least two dual-polarized radiating elements (5a) from the first row (4a) of MIMO radiating elements and at least two dual-polarized radiating elements (5b) from the second row (4b) of MIMO radiating elements are arranged - between the at least one dual-polarized low-band radiating element (6a) and the at least one further dual-polarized low-band radiating element (6b), a distance space (12) is formed; - in the distance space (12): a) at least one dual-polarized radiating element (5a) from the first row (4a) of MIMO radiating elements and at least one dual-polarized radiating element (5b) from the second row (4b) of MIMO radiating elements are arranged; or b) at least two dual-polarized radiating elements (5a) from the first row (4a) of MIMO radiating elements and at least two dual-polarized radiating elements (5b) from the second row (4b) of MIMO radiating elements are arranged.

2. The multiband antenna array according to Claim 1, characterized by the following features: - the at least one dual-polarized low-band radiating element (6a) and the at least one further dual-polarized low-band radiating element (6b) are arranged along a straight line; and / or - those of the dual-polarized radiating elements (5a) of the first row (4a) of MIMO radiating elements which are within the accommodation spaces (11) are arranged along a first straight line, and those of the dual-polarized radiating elements (5a) of the first row (4a) of MIMO radiating elements which are outside the accommodation spaces (11) are arranged along a second straight line, wherein: a) the course of the first and the second straight lines is identical; or b) the first straight line is spaced apart from but runs parallel to the second straight line; and / or - those of the dual-polarized radiating elements (5b) of the second row (4b) of MIMO radiating elements which are within the accommodation spaces (11) are arranged along a third straight line, and those of the dual-polarized radiating elements (5b) of the second row (4b) of MIMO radiating elements which are outside the accommodation spaces (11) are arranged along a fourth straight line, wherein: a) the course of the third and fourth straight lines is identical; or b) the third straight line is spaced apart from but runs parallel to the fourth straight line.

3. The multiband antenna array according to either of Claims 1 or 2, characterized by the following features: - a distance between two adjacent dual-polarized radiating elements (5a) from the first row (4a) of MIMO radiating elements is greater if one of these radiating elements (5a) is located within an accommodation space (11) and the other radiating element (5a) is located outside the accommodation space (11), than if both adjacent radiating elements (5a) are located within the accommodation space (11) or outside the accommodation space (11); and / or - a distance between two adjacent dual-polarized radiating elements (5b) from the second row (4b) of MIMO radiating elements is greater if one of these radiating elements (5b) is located within an accommodation space (11) and the other radiating element (5b) is located outside the accommodation space (11), than if both adjacent radiating elements (5b) are located within the accommodation space (11) or outside the accommodation space (11).

4. The multiband antenna array according to any one of the preceding claims, characterized by the following features: - each of the dual-polarized radiating elements (5a) of the first row (4a) of MIMO radiating elements and each of the dual-polarized radiating elements (5b) of the second row (4b) of MIMO radiating elements comprises a feeding point (13) for a first polarization and a feeding point for a second polarization; and a) a first phase shifter (14) is provided and: i) the feeding points (13) for the first polarization of the dual-polarized radiating elements (5a) of the first row (4a) of MIMO radiating elements are electrically connected to different terminals (15) of the first phase shifter (14); or ii) feeding points (13) for the first polarization of at least two adjacent dual-polarized radiating elements (5a) of the first row (4a) of MIMO radiating elements are electrically connected to each other and to a common terminal (15) of the first phase shifter (14); and / or b) a second phase shifter is provided and: i) the feeding points for the second polarization of the dual-polarized radiating elements (5a) of the first row (4a) of MIMO radiating elements are electrically connected to different terminals of the second phase shifter; or ii) feeding points for the second polarization of at least two adjacent dual-polarized radiating elements (5a) of the first row (4a) of MIMO radiating elements are electrically connected to each other and to a common terminal of the second phase shifter; and / or c) a third phase shifter is provided and: i) the feeding points for the first polarization of the dual-polarized radiating elements (5b) of the second row (4b) of MIMO radiating elements are electrically connected to different terminals of the third phase shifter; or ii) feeding points for the first polarization of at least two adjacent dual-polarized radiating elements (5b) of the second row (4b) of MIMO radiating elements are electrically connected to each other and to a common terminal of the third phase shifter; and / or d) a fourth phase shifter is provided and: i) the feeding points for the second polarization of the dual-polarized radiating elements (5b) of the second row (4b) of MIMO radiating elements are electrically connected to different terminals of the fourth phase shifter; or ii) feeding points for the second polarization of at least two adjacent dual-polarized radiating elements (5b) of the second row (4b) of MIMO radiating elements are electrically connected to each other and to a common terminal of the fourth phase shifter.

5. The multiband antenna array according to Claim 4, characterized by the following feature: - the feeding points (13) of the first or second polarization of those of the at least two adjacent dual-polarized radiating elements (5a, 5b) of the first or second rows (4a, 4b) of MIMO radiating elements, which are arranged within the accommodation space (11) or outside the accommodation space (11), are connected to each other.

6. The multiband antenna array according to any one of the preceding claims, characterized by the following features: - between the dual-polarized radiating elements (5a, 5b) of the first and second rows (4a, 4b) of MIMO radiating elements, a partition wall arrangement (22) is disposed; and / or - the dual-polarized radiating elements (5a) of the first row (4a) of MIMO radiating elements extend an equal distance away from the reflector array; and / or - the dual-polarized radiating elements (5b) of the second row (4b) of MIMO radiating elements extend an equal distance away from the reflector array (9).

7. The multiband antenna array according to any one of the preceding claims, characterized by the following features: - the at least four directive radiating element devices (10a, 10b, 10c, 10d) of the at least one dual-polarized low-band radiating element (6a) are each held at a distance from the reflector array (9) by a holding device (18); - between two holding devices (18) of adjacent radiating element devices (10a, 10b, 10c, 10d), a slot (21) is formed, which extends away from the reflector array (9); - the two holding devices (10a, 10b, 10c, 10d) are partially interleaved so that the slot (21) has an at least single- or multi-angled profile.

8. The multiband antenna array according to any one of the preceding claims, characterized by the following features: - the medium frequency range of the dual-polarized wideband radiating elements of the at least one row (7) of wideband radiating elements is: a) above the lower frequency range of the at least one dual-polarized low-band radiating element (6a); and b) below the upper frequency range of the dual-polarized radiating elements (5a, 5b) of the first and second rows (4a, 4b) of MIMO radiating elements.

9. The multiband antenna array according to any one of the preceding claims, characterized by the following feature: - the medium frequency range is higher than 1.3 GHz or 1.4 GHz or 1.427 GHz or 1.5 GHz or 1.6 GHz or 1.695 GHz but preferably lower than 3 GHz or 2.8 GHz or 2.7 GHz or 2.690 GHz.

10. The multiband antenna array according to any one of the preceding claims, characterized by the following features: - the at least one first radiating element array (2a) comprises additional dual-polarized low-band radiating elements (6c); - the accommodation space (11) of these additional dual-polarized low-band radiating elements (6c) contains at least one dual-polarized wideband radiating element of the at least one row (7) of wideband radiating elements.

11. The multiband antenna array according to any one of the preceding claims, characterized by the following features: - the dual-polarized wideband radiating elements (7) of the at least one row of wideband radiating elements each comprise a feeding point for a first polarization and a feeding point for a second polarization, and: a) the dual-polarized wideband radiating elements of the at least one row (7) of wideband radiating elements are: i) directly or indirectly connected to the same signal source at their feeding points for the first polarization; and ii) directly or indirectly connected to the same signal source at their feeding points for the second polarization; or b) the dual-polarized wideband radiating elements of the at least one row (7) of wideband radiating elements are assigned to different groups (7a, 7b); i) wherein the dual-polarized wideband radiating elements of a first group (7a) are indirectly or directly connected to a first signal source at their feeding points for the first polarization; and wherein the dual-polarized wideband radiating elements of a second group (7b) are indirectly or directly connected to a second signal source at their feeding points for the first polarization; and ii) wherein the dual-polarized wideband radiating elements of the first group (7a) are indirectly or directly connected to a third signal source at their feeding points for the second polarization; and wherein the dual-polarized wideband radiating elements of the second group (7b) are indirectly or directly connected to a fourth signal source at their feeding points for the second polarization.

12. The multiband antenna array according to any one of the preceding claims, characterized by the following features: - a second radiating element array (2b) is provided, which extends adjacent to the first radiating element array (2a) and also comprises at least one first and one second row (4a, 4b) of MIMO radiating elements, which are arranged adjacent to each other and extend in the longitudinal direction (3) of the multiband antenna array (1); - the at least one second radiating element array (2b) also comprises at least one dual-polarized low-band radiating element (6a), which is designed to transmit and / or receive in two mutually perpendicular polarization planes in a lower frequency range.

13. The multiband antenna array according to Claim 12, characterized by the following features: - a third radiating element array (2c) and a fourth radiating element array (2d) are also provided, which extend between the first radiating element array (2a) and the second radiating element array (2b) and also comprise at least one first and one second row (4a, 4b) of MIMO radiating elements, which are arranged adjacent to each other and extend in the longitudinal direction (3) of the multiband antenna array (1); - the third and fourth radiating element arrays (2c, 2d) are free of at least one dual-polarized low-band radiating element (6a).

14. The multiband antenna array according to Claim 12 or 13, characterized by the following feature: - a further partition wall arrangement (23) is disposed between two adjacent radiating element arrays (2a, 2b, 2c, 2d).