CN103856252A - Method and device for acquiring consistency of radiation patterns of multi-array antenna - Google Patents
Method and device for acquiring consistency of radiation patterns of multi-array antenna Download PDFInfo
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- CN103856252A CN103856252A CN201210519500.7A CN201210519500A CN103856252A CN 103856252 A CN103856252 A CN 103856252A CN 201210519500 A CN201210519500 A CN 201210519500A CN 103856252 A CN103856252 A CN 103856252A
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Abstract
The embodiment of the invention discloses a method and device for acquiring the consistency of radiation patterns of a multi-array antenna. The method comprises the following steps: according to radiation pattern data of the multi-array antenna, the radiation field intensity maximum difference values of all the radiation patterns of the multi-array antenna at each angle within the radiation angle range from minus 60 degrees to plus 60 degrees relative to the normal direction of the multi-array antenna are acquired respectively; the acquired radiation field intensity maximum difference values of all the radiation patterns of the multi-array antenna at each angle are contrasted, and the radiation field intensity maximum difference value within the radiation angle range from minus 60 degrees to plus 60 degrees relative to the normal direction of the multi-array antenna is acquired; the maximum gain difference value corresponding to the acquired the radiation field intensity maximum difference value within the radiation angle range from minus 60 degrees to plus 60 degrees relative to the normal direction of the multi-array antenna is acquired, wherein the maximum gain difference value serves as gain deviation of the multi-array antenna; according to the gain deviation of the multi-array antenna, the consistency of the radiation patterns of the multi-array antenna is acquired. The consistency of radiation patterns of different ports of the multi-array antenna can be acquired through the method and device.
Description
Technical field
The present invention relates to the communication technology, the conforming acquisition methods of especially a kind of many array antennas antenna pattern and device.
Background technology
The figure that the radiation field of antenna for base station distributes with angular coordinate on fixed range is called directional diagram (also referred to as antenna pattern or antenna pattern), generally represents with radiation field intensity, and it has embodied antenna transmission or has received the ability of signal.Fig. 1 is the horizontal radiation pattern of traditional two-port ± 45 ° Bipolarization antenna for base station, and wherein light color is the directional diagram of two port middle ports 1, and dark color is the directional diagram of port 2.As can be seen from Figure 1, the antenna pattern consistency of two ports (that is: the registration of two figure in a coordinate system) is fine, and in same coordinate system, the two almost overlaps, and a period of time arrangement of this and antenna itself is closely related.The symmetry of the antenna pattern of each port of antenna is better, and the directional diagram consistency of antenna all of the port is just better so.
Fig. 2 arranges schematic diagram in a period of time of antenna shown in Fig. 1.As seen from Figure 2, because a dual polarized antenna is encapsulated in and is formed in irdome on the same day by two orthogonal antennas of polarization, the position of antenna corresponding to each port on reflecting plate is identical, therefore the antenna pattern symmetry giving off is fine, consistency is fine, so need to be about the conforming technology assessment index of directional diagram in existing antenna evaluations index system.
Fig. 3 is the antenna pattern of many array eight terminal port antennaes, and the color of eight kinds of different depths represents respectively the horizontal radiation pattern that eight different ports give off.As can be seen from Figure 3, the radiation intensity of the directional diagram of each port in each angle has certain otherness, can not well overlap, and this is mainly to be determined by the project organization of eight antennas itself.Fig. 4 arranges schematic diagram in a period of time of many array antennas shown in Fig. 3.As shown in Figure 4, many array eight terminal port antennaes are made up of 4 row dual polarized antennas.Due to the position difference of 4 row dual polarized antennas on reflecting plate, for example, one row dual polarized antenna left side reflecting plate of the leftmost side is very narrow, right side reflecting plate is very wide, one row dual polarized antenna of the rightmost side is just contrary, the less mutual coupling meeting causing of the asymmetry of this position and inconsistency and array pitch causes the radiation pattern of eight ports to occur different directions and deflection in various degree, thereby occurs the inconsistency of antenna pattern as shown in Figure 3.And studies have shown that, in base station receive diversity gain size and eight antennas, the consistency of each port received signal strength is closely related, and consistency is better, and diversity gain is more obvious.Therefore, need to know the consistency of many array antennas antenna pattern.
But realizing in process of the present invention, inventor finds, in the antenna index evaluation system of prior art not about the conforming technical indicator of many array antennas different port antenna pattern, thereby cannot obtain the performance quality of many array antennas.
Summary of the invention
Embodiment of the present invention technical problem to be solved is: provide the conforming acquisition methods of a kind of many array antennas antenna pattern and device, to obtain the consistency of many array antennas different port antenna pattern.
The conforming acquisition methods of many array antennas of one antenna pattern that the embodiment of the present invention provides, comprising:
According to the radiation direction diagram data of many array antennas, obtain respectively in ° radiation angle of normal direction ± 60 of described many array antennas the maximum difference of the radiation field intensity of each antenna pattern of many array antennas in each angle; The radiation field intensity information of the radiation field that the antenna pattern data of described many array antennas comprise described many array antennas in different distance, different angular coordinate;
The maximum difference of the radiation field intensity of each antenna pattern of the many array antennas that relatively get in each angle, obtains the maximum difference of radiation field intensity in ° radiation angle of many array antennas normal direction ± 60;
The maximum difference that obtains radiation field intensity in ° radiation angle of many array antennas normal direction ± 60 obtains corresponding maximum gain difference, as the gain deviation of described many array antennas;
Obtain the consistency of described many array antennas antenna pattern according to the gain deviation of described many array antennas.
In an embodiment of said method, described many array antennas have two with upper port.
In an embodiment of said method, the consistency of obtaining described many array antennas antenna pattern according to the gain deviation of described many array antennas comprises:
The gain deviation of described many array antennas is less, and the consistency of described many array antennas antenna pattern is better;
The gain deviation of described many array antennas is larger, and the consistency of described many array antennas antenna pattern is poorer.
In an embodiment of said method, also comprise:
Whether the gain deviation of identifying described many array antennas is less than default gain offset value;
If the gain deviation of described many array antennas is less than default gain offset value, determine that the consistency of described many array antennas antenna pattern meets performance requirement;
Otherwise, if the gain deviation of described many array antennas is less than default gain offset value, determine that the consistency of described many array antennas antenna pattern does not meet performance requirement.
In an embodiment of said method, described default gain offset value is specially 2dB.
The conforming acquisition device of many array antennas of one antenna pattern that the embodiment of the present invention provides, comprising:
Memory cell, for storing the radiation direction diagram data of many array antennas, the radiation field intensity information of the radiation field that the antenna pattern data of described many array antennas comprise described many array antennas in different distance, different angular coordinate;
The first acquiring unit, be used for according to the radiation direction diagram data of the many array antennas of memory cell, obtain respectively in ° radiation angle of normal direction ± 60 of described many array antennas the maximum difference of the radiation field intensity of each antenna pattern of many array antennas in each angle;
Comparing unit, the maximum difference of the radiation field intensity for each antenna pattern of many array antennas of relatively getting in each angle, obtains the maximum difference of radiation field intensity in ° radiation angle of many array antennas normal direction ± 60;
Second acquisition unit, obtains corresponding maximum gain difference for obtaining the maximum difference of radiation field intensity in ° radiation angle of many array antennas normal direction ± 60, as the gain deviation of described many array antennas;
The 3rd acquiring unit, for obtaining the consistency of described many array antennas antenna pattern according to the gain deviation of described many array antennas.
In an embodiment of said apparatus, described many array antennas have two with upper port.
In an embodiment of said apparatus, the gain deviation of described many array antennas is less, and the consistency of described many array antennas antenna pattern is better;
The gain deviation of described many array antennas is larger, and the consistency of described many array antennas antenna pattern is poorer.
In an embodiment of said apparatus, also comprise: whether recognition unit, be less than default gain offset value for the gain deviation of identifying described many array antennas;
If the gain deviation of described many array antennas is less than default gain offset value, determine that the consistency of described many array antennas antenna pattern meets performance requirement;
Otherwise, if the gain deviation of described many array antennas is less than default gain offset value, determine that the consistency of described many array antennas antenna pattern does not meet performance requirement.
In an embodiment of said apparatus, described default gain offset value is specially 2dB.
The conforming acquisition methods of many array antennas antenna pattern and the device that provide based on the above embodiment of the present invention, can be according to the radiation direction diagram data of many array antennas, obtain respectively in ° radiation angle of normal direction ± 60 of many array antennas, the maximum difference of the radiation field intensity of each antenna pattern of these many array antennas in each angle, the maximum difference of the radiation field intensity of each antenna pattern of the many array antennas that relatively get in each angle, obtain the maximum difference of radiation field intensity in ° radiation angle of many array antennas normal direction ± 60, and obtain this maximum difference and obtain the gain deviation of corresponding maximum gain difference as many array antennas, further obtain the consistency of this many array antennas antenna pattern according to the gain deviation of many array antennas.The embodiment of the present invention proposes to be obtained by gain deviation index the consistency of many array antennas antenna pattern, thereby weigh the performance of many array antennas different port antenna pattern aspect consistency, guarantee that each port of base station in multiaerial system transmits and receives the consistency of performance, give full play to the performance advantage of many antennas, solve in existing antenna index evaluation system not about the conforming technical indicator of many array antennas different port antenna pattern, thereby cannot obtain the problem of the performance quality of many array antennas.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Brief description of the drawings
The accompanying drawing that forms a part for specification has been described embodiments of the invention, and is used from explanation principle of the present invention together with describing one.
With reference to accompanying drawing, according to detailed description below, can more be expressly understood the present invention, wherein:
Fig. 1 is the horizontal radiation pattern of traditional two-port ± 45 ° Bipolarization antenna for base station.
Fig. 2 arranges schematic diagram in a period of time of antenna shown in Fig. 1.
Fig. 3 is the antenna pattern of many array eight terminal port antennaes.
Fig. 4 arranges schematic diagram in a period of time of many array antennas shown in Fig. 3.
Fig. 5 is the flow chart of an embodiment of the conforming acquisition methods of many array antennas of the present invention antenna pattern.
Fig. 6 is the structural representation of an embodiment of the conforming acquisition device of many array antennas of the present invention antenna pattern.
Embodiment
Describe various exemplary embodiment of the present invention in detail now with reference to accompanying drawing.It should be noted that: unless illustrate in addition, the parts of setting forth in these embodiments and positioned opposite, numeral expression formula and the numerical value of step do not limit the scope of the invention.
, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not to draw according to actual proportionate relationship meanwhile.
Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in suitable situation, described technology, method and apparatus should be regarded as a part for specification.
In all examples with discussing shown here, it is exemplary that any occurrence should be construed as merely, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: in similar label and letter accompanying drawing below, represent similar terms, therefore, once be defined in an a certain Xiang Yi accompanying drawing, in accompanying drawing subsequently, do not need it to be further discussed.
Fig. 5 is the flow chart of an embodiment of the conforming acquisition methods of many array antennas of the present invention antenna pattern.As shown in Figure 5, the conforming acquisition methods of this many array antennas of embodiment antenna pattern comprises:
510, obtain the radiation direction diagram data that need to obtain the conforming many array antennas of antenna pattern, the radiation field intensity information of the radiation field that the antenna pattern data of these many array antennas comprise many array antennas in different distance, different angular coordinate.
520, according to the radiation direction diagram data of the many array antennas that get, obtain respectively in ° radiation angle of normal direction ± 60 of these many array antennas the maximum difference of the radiation field intensity of each antenna pattern of many array antennas in each angle.
530, the maximum difference of the radiation field intensity of each antenna pattern of the many array antennas that relatively get in each angle, obtains the maximum difference of radiation field intensity in ° radiation angle of many array antennas normal direction ± 60.
540, according to the preset relation between radiation field intensity and gain, the maximum difference that obtains radiation field intensity in ° radiation angle of many array antennas normal direction ± 60 obtains corresponding maximum gain difference, as the gain deviation of many array antennas.
550, obtain the consistency of many array antennas antenna pattern according to the gain deviation of many array antennas.
The conforming acquisition methods of many array antennas antenna pattern that the above embodiment of the present invention provides, can be according to the radiation direction diagram data of many array antennas, obtain respectively in ° radiation angle of normal direction ± 60 of many array antennas, the maximum difference of the radiation field intensity of each antenna pattern of these many array antennas in each angle, the maximum difference of the radiation field intensity of each antenna pattern of the many array antennas that relatively get in each angle, obtain the maximum difference of radiation field intensity in ° radiation angle of many array antennas normal direction ± 60, and obtain this maximum difference and obtain the gain deviation of corresponding maximum gain difference as many array antennas, further obtain the consistency of this many array antennas antenna pattern according to the gain deviation of many array antennas.The embodiment of the present invention proposes to be obtained by gain deviation index the consistency of many array antennas antenna pattern, thereby weigh the performance of many array antennas different port antenna pattern aspect consistency, guarantee that each port of base station in multiaerial system transmits and receives the consistency of performance, give full play to the performance advantage of many antennas, solve in existing antenna index evaluation system not about the conforming technical indicator of many array antennas different port antenna pattern, thereby cannot obtain the problem of the performance quality of many array antennas.
Concrete example of the conforming acquisition methods embodiment of many array antennas antenna pattern according to the present invention and unrestricted, many array antennas have two with upper port, for example, have eight ports, corresponding many array antennas are specially many array eight terminal port antennaes.
Another concrete example of the conforming acquisition methods embodiment of many array antennas antenna pattern according to the present invention and unrestricted, in operation 550 embodiment illustrated in fig. 1, the consistency of obtaining many array antennas antenna pattern according to the gain deviation of many array antennas specifically can comprise:
The gain deviation of many array antennas is less, and the consistency of many array antennas antenna pattern is better;
The gain deviation of many array antennas is larger, and the consistency of many array antennas antenna pattern is poorer.
Another concrete example of the conforming acquisition methods embodiment of many array antennas antenna pattern according to the present invention and unrestricted, also comprises:
Whether the gain deviation of identifying many array antennas is less than default gain offset value;
If the gain deviation of many array antennas is less than default gain offset value, determine that the consistency of many array antennas antenna pattern meets performance requirement;
Otherwise, if the gain deviation of many array antennas is less than default gain offset value, determine that the consistency of many array antennas antenna pattern does not meet performance requirement.
Exemplarily, default gain offset value is wherein specifically as follows 2dB.
The embodiment of the present invention is with a Long Term Evolution (Long Term Evolution, LTE) Frequency Division Duplexing (FDD) (Frequency Division Duplex, FDD) 2.6GHz eight port Bipolarization antenna for base station arrays are example, the application of the conforming acquisition methods of many array antennas antenna pattern to the embodiment of the present invention is further elaborated, but principle involved in the present invention and method are not limited to many array antennas of this frequency range and this wireless access technology, can be based on this Application Example, the embodiment of the present invention can be extended to other frequency range, wireless access technology, many array antennas of quantity port.
With reference to the antenna pattern of many arrays eight terminal port antennaes shown in figure 3 (below also can be referred to as: antenna or many array antennas), the normal direction that 0 degree is antenna,-60 degree to+60 degree totally 120 degree radiation angular range in, each port all has a radiation field intensity value in each angle, eight ports are often having 8 radiation field intensity values on once, in each angle, all there is a crosspoint with the directional diagram of 8 ports, can find maximum and the minimum value of radiation field intensity corresponding to 8 crosspoints, radiation field intensity is larger, and corresponding yield value is larger.Get in first angle of radiation maximum and the minimum value of radiation field intensity corresponding to 8 crosspoints, the two is subtracted each other to the maximum difference that obtains the radiation field intensity in each angle of radiation.Each angle of radiation is calculated once in the radiation angle of+60 degree from-60 degree, owing to there being the maximum difference of a radiation field intensity in each angle of radiation, one has the maximum difference of 120 radiation field intensities, corresponding 120 maximum gain differences, and this maximum gain difference is also referred to as gain deviation.Obtain the maximum difference in the maximum difference of 120 radiation field intensities, radiation field intensity in each angle of radiation has represented the ability of antenna amplifying signal, preset relation according to radiation field intensity and between increasing, obtain maximum gain difference corresponding to maximum difference in the maximum difference of these 120 radiation field intensities, whether the gain deviation of identifying many array antennas is less than default gain offset value, for example, 2dB.If the gain deviation of many array antennas is less than default gain offset value, determine that the consistency of this many array antennas antenna pattern meets performance requirement.Otherwise, if the gain deviation of many array antennas is less than default gain offset value, determine that the consistency of many array antennas antenna pattern does not meet performance requirement.
Fig. 6 is the structural representation of an embodiment of the conforming acquisition device of many array antennas of the present invention antenna pattern.The conforming acquisition device of this many array antennas of embodiment antenna pattern can be used in the present invention the conforming acquisition methods flow process of above-mentioned each many array antennas antenna pattern.As shown in Figure 6, it comprises memory cell 610, the first acquiring unit 620, comparing unit 630, second acquisition unit 640 and the 3rd acquiring unit 650.
Wherein, memory cell 610, for storing the radiation direction diagram data of the each many array antennas that set in advance, the radiation field intensity information of the radiation field that the antenna pattern data of these many array antennas comprise many array antennas in different distance, different angular coordinate.
The first acquiring unit 620, for obtaining the radiation direction diagram data that need to obtain the conforming many array antennas of antenna pattern from memory cell 610, and according to the radiation direction diagram data of these many array antennas, obtain respectively in ° radiation angle of normal direction ± 60 of many array antennas the maximum difference of the radiation field intensity of each antenna pattern of many array antennas in each angle.
Comparing unit 630, the maximum difference of the radiation field intensity for each antenna pattern of many array antennas that relatively the first acquiring unit 620 gets in each angle, obtains the maximum difference of radiation field intensity in ° radiation angle of many array antennas normal direction ± 60.
The 3rd acquiring unit 650, for obtaining the consistency of many array antennas antenna pattern according to the gain deviation of many array antennas.
The conforming acquisition device of many array antennas antenna pattern that the above embodiment of the present invention provides, can be according to the radiation direction diagram data of many array antennas, obtain respectively in ° radiation angle of normal direction ± 60 of many array antennas, the maximum difference of the radiation field intensity of each antenna pattern of these many array antennas in each angle, the maximum difference of the radiation field intensity of each antenna pattern of the many array antennas that relatively get in each angle, obtain the maximum difference of radiation field intensity in ° radiation angle of many array antennas normal direction ± 60, and obtain this maximum difference and obtain the gain deviation of corresponding maximum gain difference as many array antennas, further obtain the consistency of this many array antennas antenna pattern according to the gain deviation of many array antennas.The embodiment of the present invention proposes to be obtained by gain deviation index the consistency of many array antennas antenna pattern, thereby weigh the performance of many array antennas different port antenna pattern aspect consistency, guarantee that each port of base station in multiaerial system transmits and receives the consistency of performance, give full play to the performance advantage of many antennas, solve in existing antenna index evaluation system not about the conforming technical indicator of many array antennas different port antenna pattern, thereby cannot obtain the problem of the performance quality of many array antennas.
According to the present invention, a concrete example of the conforming acquisition device embodiment of many array antennas antenna pattern is and unrestricted, and many array antennas have two with upper port.
According to the present invention, another concrete example of the conforming acquisition device embodiment of many array antennas antenna pattern is and unrestricted, and the gain deviation of many array antennas is less, and the consistency of many array antennas antenna pattern is better; Otherwise the gain deviation of many array antennas is larger, the consistency of many array antennas antenna pattern is poorer.
Again referring to Fig. 6, another concrete example of the conforming acquisition device embodiment of many array antennas antenna pattern according to the present invention and unrestricted, can also comprise recognition unit 660, whether be less than default gain offset value for the gain deviation of identifying many array antennas that second acquisition unit 640 gets; If the gain deviation of many array antennas is less than default gain offset value, determine that the consistency of many array antennas antenna pattern meets performance requirement; Otherwise, if the gain deviation of many array antennas is less than default gain offset value, determine that the consistency of many array antennas antenna pattern does not meet performance requirement.
Exemplarily, above-mentioned default gain offset value is specifically as follows 2dB.
In this specification, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, same or analogous part cross-references between each embodiment.For device embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, relevant part is referring to the part explanation of embodiment of the method.
May realize in many ways method and apparatus of the present invention.For example, can realize method and apparatus of the present invention by any combination of software, hardware, firmware or software, hardware, firmware.The said sequence that is used for the step of described method is only in order to describe, and the step of method of the present invention is not limited to above specifically described order, unless otherwise specified.In addition, in certain embodiments, can be also the program being recorded in recording medium by the invention process, these programs comprise the machine readable instructions for realizing the method according to this invention.Thereby the present invention also covers the recording medium of storing the program for carrying out the method according to this invention.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, in the time carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
In existing antenna rower and enterprise mark, all not about the conforming technical indicator of different antennae array pattern, the gain deviation index of embodiment of the present invention proposition can make up this blank, and its definition is scientific and reasonable, and computational methods are simple and clear, easy operating.In more and more widely used many antenna mobile communication systems, can utilize this index to weigh the consistency of many array antennas antenna pattern, thereby guarantee that each port of base station in multiaerial system transmits and receives the consistency of performance, gives full play to the performance advantage of many antennas.
Description of the invention provides for example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the present invention's design to be suitable for the various embodiment with various amendments of special-purpose.
Claims (10)
1. the conforming acquisition methods of the antenna pattern of array antenna more than, is characterized in that, comprising:
According to the radiation direction diagram data of many array antennas, obtain respectively in ° radiation angle of normal direction ± 60 of described many array antennas the maximum difference of the radiation field intensity of each antenna pattern of many array antennas in each angle; The radiation field intensity information of the radiation field that the antenna pattern data of described many array antennas comprise described many array antennas in different distance, different angular coordinate;
The maximum difference of the radiation field intensity of each antenna pattern of the many array antennas that relatively get in each angle, obtains the maximum difference of radiation field intensity in ° radiation angle of many array antennas normal direction ± 60;
The maximum difference that obtains radiation field intensity in ° radiation angle of many array antennas normal direction ± 60 obtains corresponding maximum gain difference, as the gain deviation of described many array antennas;
Obtain the consistency of described many array antennas antenna pattern according to the gain deviation of described many array antennas.
2. method according to claim 1, is characterized in that, described many array antennas have two with upper port.
3. method according to claim 2, is characterized in that, the consistency of obtaining described many array antennas antenna pattern according to the gain deviation of described many array antennas comprises:
The gain deviation of described many array antennas is less, and the consistency of described many array antennas antenna pattern is better;
The gain deviation of described many array antennas is larger, and the consistency of described many array antennas antenna pattern is poorer.
4. according to the method described in claims 1 to 3 any one, it is characterized in that, also comprise:
Whether the gain deviation of identifying described many array antennas is less than default gain offset value;
If the gain deviation of described many array antennas is less than default gain offset value, determine that the consistency of described many array antennas antenna pattern meets performance requirement;
Otherwise, if the gain deviation of described many array antennas is less than default gain offset value, determine that the consistency of described many array antennas antenna pattern does not meet performance requirement.
5. method according to claim 4, is characterized in that, described default gain offset value is specially 2dB.
6. the conforming acquisition device of the antenna pattern of array antenna more than, is characterized in that, comprising:
Memory cell, for storing the radiation direction diagram data of many array antennas, the radiation field intensity information of the radiation field that the antenna pattern data of described many array antennas comprise described many array antennas in different distance, different angular coordinate;
The first acquiring unit, be used for according to the radiation direction diagram data of the many array antennas of memory cell, obtain respectively in ° radiation angle of normal direction ± 60 of described many array antennas the maximum difference of the radiation field intensity of each antenna pattern of many array antennas in each angle;
Comparing unit, the maximum difference of the radiation field intensity for each antenna pattern of many array antennas of relatively getting in each angle, obtains the maximum difference of radiation field intensity in ° radiation angle of many array antennas normal direction ± 60;
Second acquisition unit, obtains corresponding maximum gain difference for obtaining the maximum difference of radiation field intensity in ° radiation angle of many array antennas normal direction ± 60, as the gain deviation of described many array antennas;
The 3rd acquiring unit, for obtaining the consistency of described many array antennas antenna pattern according to the gain deviation of described many array antennas.
7. device according to claim 6, is characterized in that, described many array antennas have two with upper port.
8. device according to claim 7, is characterized in that, the gain deviation of described many array antennas is less, and the consistency of described many array antennas antenna pattern is better;
The gain deviation of described many array antennas is larger, and the consistency of described many array antennas antenna pattern is poorer.
9. according to the device described in claim 6 to 8 any one, it is characterized in that, also comprise: whether recognition unit, be less than default gain offset value for the gain deviation of identifying described many array antennas;
If the gain deviation of described many array antennas is less than default gain offset value, determine that the consistency of described many array antennas antenna pattern meets performance requirement;
Otherwise, if the gain deviation of described many array antennas is less than default gain offset value, determine that the consistency of described many array antennas antenna pattern does not meet performance requirement.
10. device according to claim 9, is characterized in that, described default gain offset value is specially 2dB.
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