CN116231335A - Phased array antenna wave beam accurate adjustment method and device - Google Patents
Phased array antenna wave beam accurate adjustment method and device Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention provides a method and a device for accurately adjusting a wave beam of a phased array antenna, wherein the method comprises the following steps: acquiring a plurality of sub-frequency bands of a phased array antenna array element communication frequency band range, wherein the communication frequency band range is divided into a plurality of preset number of sub-frequency bands; in each communication process, determining a corresponding target sub-frequency band in the plurality of sub-frequency bands according to the current communication frequency of the phased array antenna; and adjusting the phase of each array element according to the center frequency of the target sub-frequency band. The method can reduce the frequency difference between the center frequency point and the lowest frequency point in each communication sub-section and between the center frequency point and the highest frequency point, thereby reducing the calculation error of the phase difference between adjacent antenna array elements, improving the accuracy of antenna phase adjustment and further realizing the accurate adjustment of wave beams.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a method and apparatus for accurately adjusting a phased array antenna beam.
Background
Phased array antennas have been developed based on phased array radars that improve upon previous mechanically scanned approaches. The phased array antenna has the greatest advantages that the phased array antenna can intelligently realize beam scanning in a large space domain, has larger gain, can accurately track and identify targets in an observation range, and can simultaneously track the dynamic states of a plurality of targets, feed back information and calculate and analyze the information. The phased array antenna can acquire target information in a set airspace, rapidly and flexibly change the wave beam and the directional shape of the antenna according to the target, and can transmit and receive electromagnetic waves in each frequency band in the whole space, so that the phased array antenna has the airspace filtering function, and can realize the accurate completion of the tasks of searching, tracking, capturing, identifying and the like for a plurality of targets.
Since phased array antennas are often applied to moving carriers, the phased array antennas need to continuously adjust the phase of the phased array according to the beam direction in the process of tracking the target, so as to achieve accurate tracking of the target (e.g., a synchronization satellite). The current wave beam adjusting method is to determine the phase difference between adjacent antenna array elements according to the communication frequency and wave speed direction angle of the phased array antenna, and adjust the phase according to the phase difference.
Because the communication frequency of the phased array antenna is a frequency band range and cannot be calculated effectively, the current method is to determine the phase difference between adjacent antenna array elements according to the central point frequency of the communication frequency band range and the parameters such as the wave speed direction angle. Because the frequency difference between the lowest frequency point and the highest frequency point of the communication frequency band and the central frequency point is larger, the calculated phase difference according to the method has calculation errors, so that the phase difference between adjacent array elements of adjacent antennas is inaccurate, and further the phase adjustment result of each antenna array element cannot accurately track the target.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a method and a device for accurately adjusting a wave beam of a phased array antenna.
The invention provides a method for accurately adjusting a wave beam of a phased array antenna, which comprises the following steps: acquiring a plurality of sub-frequency bands of a phased array antenna array element communication frequency band range, wherein the communication frequency band range is divided into a plurality of preset number of sub-frequency bands; in each communication process, determining a corresponding target sub-frequency band in the plurality of sub-frequency bands according to the current communication frequency of the phased array antenna; and adjusting the phase of each array element according to the center frequency of the target sub-frequency band.
According to an embodiment of the present invention, a method for accurately adjusting a phased array antenna beam, wherein the adjusting a phase of each array element according to a center frequency of the target sub-band includes: determining an array element adjustment parameter corresponding to the center frequency of a target sub-frequency band from a one-to-one correspondence between preset different center frequencies and the array element adjustment parameter, wherein the adjustment parameter comprises a phase shift value of each array element; according to the adjustment parameters corresponding to the center frequency, each array element is adjusted; the adjustment parameters are parameters required to be adjusted for each array element when the antenna gain is maximum under the condition of corresponding center frequency.
According to the phased array antenna beam accurate adjustment method, the adjustment parameters further comprise attenuation values of each array element.
According to an embodiment of the present invention, the method for accurately adjusting a phased array antenna beam further includes, before adjusting a phase of each array element according to a center frequency of the target sub-band: according to the center frequency of each sub-frequency band, determining the phase difference of adjacent array elements corresponding to different center frequencies; for each center frequency, adjusting the phase value of each array element according to the phase difference of adjacent array elements to obtain a coarse adjustment result of the phase value of each array element; for each center frequency, adjusting the phase value of each array element, or simultaneously adjusting the phase value and the attenuation value of each array element until the antenna gain is maximum, and determining the fine adjustment result of the phase of each array element; and determining the adjustment parameters corresponding to each center frequency and comprising each array element phase shift value or simultaneously comprising each array element phase shift value and each attenuation value according to the coarse adjustment result and the fine adjustment result of each array element phase value.
According to an embodiment of the present invention, the method for accurately adjusting a phased array antenna beam adjusts a phase value of each array element, or adjusts a phase value and an attenuation value of each array element at the same time until an antenna gain is maximum, and determines a fine adjustment result of a phase of each array element, including: based on the rough adjustment result of the phase value of each array element, adjusting the antenna angle of the phased array antenna and the simulated opposite side communication equipment to be consistent through a rotating platform arranged in a dark room; and adjusting the phase shift value of each array element, or adjusting the phase shift value and the attenuation value simultaneously until the antenna gain is maximum, and determining the phase shift value as a fine tuning result of each array element.
According to an embodiment of the present invention, a method for accurately adjusting a phased array antenna beam, wherein the adjusting a phase of each array element according to a center frequency of the target sub-band includes: determining the phase difference of adjacent array elements according to the center frequency of the target sub-frequency band; and adjusting the phase of each array element according to the phase difference of the adjacent array elements.
According to an embodiment of the present invention, the method for accurately adjusting a phased array antenna beam, determining a phase difference between adjacent array elements according to a center frequency of the target sub-band, includes:
Δ＝(2π/λ)*d*sinθ；
wherein delta is the phase difference of adjacent array elements; λ is the center frequency of the target sub-band, d is the spacing between adjacent array elements, and θ is the beam direction angle.
The invention also provides a device for accurately adjusting the wave beam of the phased array antenna, which comprises the following steps: the acquisition module is used for acquiring a plurality of sub-frequency bands of the array element communication frequency band range of the phased array antenna, wherein the communication frequency band range is divided into a plurality of preset number of sub-frequency bands; the comparison module is used for determining a corresponding target sub-frequency band in the plurality of sub-frequency bands according to the current communication frequency of the phased array antenna in each communication process; and the adjusting module is used for adjusting the phase of each array element according to the center frequency of the target sub-frequency band.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the processor performs the steps of the phased array antenna beam accurate adjustment method as described in any one of the above.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of a phased array antenna beam accurate adjustment method as described in any one of the above.
According to the method and the device for accurately adjusting the wave beam of the phased array antenna, the communication frequency band range is divided into the preset number of the plurality of sub-frequency bands, and the communication frequency is determined according to the sub-frequency band to which the current communication frequency belongs, so that the frequency difference value between the central frequency point and the lowest frequency point in each communication sub-band and between the central frequency point and the highest frequency point can be reduced, the calculation error of the phase difference between adjacent antenna array elements is reduced, the accuracy of antenna phase adjustment is improved, and further the accurate adjustment of the wave beam is realized.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a method for accurately adjusting a phased array antenna beam provided by the invention;
FIG. 2 is a schematic diagram illustrating analysis of a communication band provided in the prior art;
FIG. 3 is a schematic diagram illustrating analysis of a communication band according to the present invention;
fig. 4 is a schematic diagram of a phased array antenna parameter tuning scenario provided by the present invention;
FIG. 5 is a schematic diagram of fine tuning of phase and attenuation values provided by the present invention;
fig. 6 is a schematic structural diagram of a phased array antenna beam accurate adjustment device provided by the invention;
fig. 7 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The phased array antenna beam accurate adjustment method and apparatus of the present invention are described below with reference to fig. 1-7. Fig. 1 is a flow chart of a method for accurately adjusting a phased array antenna beam according to the present invention, as shown in fig. 1, the method for accurately adjusting a phased array antenna beam according to the present invention includes:
101. and acquiring a plurality of sub-frequency bands of the array element communication frequency band range of the phased array antenna, wherein the communication frequency band range is divided into a plurality of preset number of sub-frequency bands.
Fig. 2 is a schematic diagram of communication band analysis provided in the prior art, and as shown in fig. 2, the communication band range of the phased array antenna array element is determined. Fig. 3 is a schematic diagram of communication band analysis provided by the present invention, as shown in fig. 3, in the present invention, a communication band range is acquired first, and then the communication band range is divided into a preset number of multiple sub-bands. The preset number can be specifically determined according to comprehensive consideration between the calculation precision and the calculation cost. The more the sub-frequency bands are divided, the more accurate the phase difference calculation result between the adjacent array elements of the adjacent antennas is, and the more calculation cost is brought.
For example, the communication band is divided into n subsections: d1, D2, …, dn, so that the frequency difference between the center frequency point and the lowest frequency point, and between the center frequency point and the highest frequency point in each communication sub-segment can be reduced.
102. During each communication, determining a corresponding target sub-band in the plurality of sub-bands according to the current communication frequency of the phased array antenna.
In consideration of the fact that corresponding frequencies are used when different services or data are processed, the phased array antenna array is divided into a plurality of different communication processes when being applied, the current communication frequency can be a range for each communication process, but after the communication processes are divided, the current communication frequency can be smaller than the coverage range of the sub-frequency bands. From the above-mentioned n sub-bands, according to the current communication frequency used per communication procedure: corresponding target sub-bands are determined in D1, D2, …, dn. For example, if the frequency band with more current communication frequencies is within the coverage range of D2, the target sub-frequency band is determined to be D2.
103. And adjusting the phase of each array element according to the center frequency of the target sub-frequency band.
After the target sub-frequency band is determined, the phase of the array element is adjusted according to the center frequency of the target sub-frequency band as the frequency point of the current communication. For example, according to n frequency subbands D1, D2, …, dn, under the condition of the same beam direction angle, Δ1, Δ2, Δn phase difference Δvalues of n different adjacent array elements are obtained respectively, and then the phase of each array element is adjusted according to the different Δvalues.
Specifically, the phase difference between adjacent antenna elements can be determined based on the current calculation mode according to the communication frequency, the distance between adjacent antenna elements and the beam direction angle, and then the phase of each antenna element can be adjusted according to the phase difference between the adjacent antenna elements.
According to the method for accurately adjusting the wave beam of the phased array antenna, the communication frequency band range is divided into the preset number of the plurality of sub-frequency bands, and the communication frequency is determined according to the sub-frequency band to which the current communication frequency belongs, so that the frequency difference value between the central frequency point and the lowest frequency point and between the central frequency point and the highest frequency point in each communication sub-section can be reduced, the calculation error of the phase difference between adjacent antenna array elements is reduced, the accuracy of antenna phase adjustment is improved, and further the accurate adjustment of the wave beam is realized.
In one embodiment, the adjusting the phase of each array element according to the center frequency of the target sub-band includes: according to the center frequency of the target sub-frequency band, determining the phase difference between adjacent array elements; and adjusting the phase of each array element according to the phase difference between the adjacent array elements.
The above 103 is illustrated and will not be repeated here. The process is based on the current method of determining phase difference according to the center line point of the frequency band and adjusting the phase according to the phase difference. The difference is that the center frequency of the phase difference of the adjacent array elements is determined by dividing a plurality of sub-frequency bands, then determining the sub-frequency bands according to the corresponding relation between the current communication frequency and the sub-frequency bands, and then determining the phase difference.
In one embodiment, the determining the phase difference between adjacent array elements according to the center frequency of the target sub-band includes:
Δ＝(2π/λ)*d*sinθ (1)
wherein delta is the phase difference of adjacent array elements; λ is the center frequency of the target sub-band, d is the spacing between adjacent array elements, and θ is the beam direction angle.
It can be seen that the present method uses the midpoint of the whole communication frequency band range to calculate Δ, while the present invention divides the communication frequency band range into a plurality of preset number of sub-frequency bands, uses the midpoint frequency of the sub-frequency band to calculate Δ, thereby reducing the frequency difference between the center frequency point and the lowest frequency point, and between the center frequency point and the highest frequency point in each communication sub-band, and further reducing the calculation error of the phase difference between adjacent antenna elements.
In one embodiment, the adjusting the phase of each array element according to the center frequency of the target sub-band includes: determining an array element adjustment parameter corresponding to the center frequency of a target sub-frequency band from a one-to-one correspondence between preset different center frequencies and the array element adjustment parameter, wherein the adjustment parameter comprises a phase shift value of each array element; according to the adjustment parameters corresponding to the center frequency, each array element is adjusted; the adjustment parameters are parameters required to be adjusted for each array element when the antenna gain is maximum under the condition of corresponding center frequency.
Considering that mutual coupling exists between array elements of the phased array antenna, and influence of an antenna housing and an antenna mounting disc on the array elements of the antenna exists, therefore, a theoretically calculated delta value is not an optimal delta value of a real antenna, and an optimal index of the antenna cannot be obtained.
In order to improve the wave beam adjusting precision of the phased array antenna, the embodiment of the invention is further improved on the basis of the embodiment of the method. Specifically, the invention configures array element adjustment parameters for maximizing antenna gain in advance for each sub-band or corresponding center frequency. The adjustment parameters include phase shift values, and of course, other parameters to be adjusted may be added, which is not particularly limited in the embodiment of the present invention.
The phase shift values phi 1, phi 2, …, phi n of the antenna branches corresponding to each center frequency can be obtained under the condition of maximum antenna gain based on each sub-band and then stored on a storage medium.
In each communication process, after the target sub-frequency band is determined by the method or the center frequency corresponding to the target sub-frequency band, the target adjustment parameters (including the phase of each array element) of all the current array elements are obtained from the storage medium according to the center frequency, and each array element is adjusted.
In the embodiment of the invention, the communication frequency band range is divided into a plurality of preset frequency sub-bands, so that the frequency difference value between the central frequency point and the lowest frequency point in each communication sub-band and between the central frequency point and the highest frequency point is reduced, and on the basis, the adjustment parameters of each array element are respectively determined according to each central frequency, thereby further improving the phase adjustment accuracy of the array elements of the phased array antenna.
In one embodiment, the adjustment parameters further comprise attenuation values for each array element. Specifically, in the embodiment of the invention, the phase and the attenuation value are adjusted at the same time, so that the parameter adjustment accuracy of the array element of the phased array antenna is higher, and the adjustment accuracy of the antenna beam is correspondingly higher.
In one embodiment, before adjusting the phase of each array element according to the center frequency of the target sub-band, the method further includes: according to the center frequency of each sub-frequency band, determining the phase difference of adjacent array elements corresponding to different center frequencies; for each center frequency, adjusting the phase value of each array element according to the phase difference of adjacent array elements to obtain a coarse adjustment result of the phase value of each array element; for each center frequency, adjusting the phase value of each array element, or simultaneously adjusting the phase value and the attenuation value of each array element until the antenna gain is maximum, and determining the fine adjustment result of the phase of each array element; and determining the adjustment parameters corresponding to each center frequency and comprising each array element phase shift value or simultaneously comprising each array element phase shift value and each attenuation value according to the coarse adjustment result and the fine adjustment result of each array element phase value.
The embodiment of the invention respectively comprises a phase shift value phi and simultaneously comprises the condition that the phase shift value phi and an attenuation value A are respectively adjusted. One of these, namely the case where both the phase shift value phi and the attenuation value A are included, is described below, and the case where only the phase shift value phi is included can be referred to accordingly.
In the embodiment of the invention, the phase difference calculated by the formula 1 is finely adjusted to eliminate the mutual coupling among array elements of the phased array antenna and the influence of the antenna housing and the antenna mounting disc so as to obtain the optimal gain index. Specifically, after the phase difference of the adjacent array elements is determined by the method such as formula 1, the phase of the array elements is not directly adjusted by the phase difference. The phase difference is simulated in advance to adjust the phase of the array element, and then the phase value and the attenuation value of each array element are finely adjusted until the antenna gain is maximum, and the phase value and the attenuation value of each array element phase are determined. And finally, determining the adjustment parameters of the phase shift value and the attenuation value corresponding to each center frequency according to the coarse adjustment value and the fine adjustment value of the phase value of each array element. And during specific adjustment, finding out the corresponding adjustment parameters through the center frequency of the target sub-frequency band by utilizing the relation between each set center frequency and the adjustment parameters, and carrying out phase adjustment on each array element based on the adjustment parameters. For example, the corresponding relation is stored in a storage medium, after the center frequency of the target sub-band is determined in 103, the corresponding adjustment parameters are obtained according to the search in the storage medium, so that the array phase and the attenuation value are more accurately adjusted, and further, the accurate adjustment of the phased array antenna wave beam is realized.
In one embodiment, the adjusting the phase value of each array element, or adjusting the phase value and the attenuation value of each array element at the same time, until the antenna gain is maximum, determining the trimming result of the phase of each array element includes: based on the rough adjustment result of the phase value of each array element, adjusting the antenna angle of the phased array antenna and the simulated opposite side communication equipment to be consistent through a rotating platform arranged in a dark room; and adjusting the phase shift value of each array element, or adjusting the phase shift value and the attenuation value simultaneously until the antenna gain is maximum, and determining the phase shift value as a fine tuning result of each array element.
Fig. 4 is a schematic view of a phased array antenna parameter tuning scenario provided in the present invention, where, as shown in fig. 4, a phased array antenna (including a radome, an antenna mounting disc, etc.) is mounted in a test darkroom antenna turret by simulating an antenna of a contralateral communication device with a horn antenna. And adjusting the angles of the antenna turntable and the horn antenna, respectively configuring the phase shift values phi 1, phi 2, phi n of each antenna branch corresponding to the calculated delta n value, and testing the antenna gain at the moment. The maximum antenna gain is found by fine tuning the phase shift value phi and the attenuation value A of each branch, and the phase shift value phi and the attenuation value A of each branch corresponding to the maximum antenna gain are recorded, as shown in fig. 5, for use in the practical application of the antenna.
The phased array antenna beam accurate adjustment device provided by the invention is described below, and the phased array antenna beam accurate adjustment device described below and the phased array antenna beam accurate adjustment method described above can be referred to correspondingly.
Fig. 6 is a schematic structural diagram of a phased array antenna beam accurate adjustment device provided by the present invention, as shown in fig. 6, the phased array antenna beam accurate adjustment device includes: an acquisition module 601, a comparison module 602 and an adjustment module 603. The acquiring module 601 is configured to acquire a plurality of sub-bands of a phased array antenna array element communication frequency band range, where the communication frequency band range is divided into a preset number of sub-bands; the comparing module 602 is configured to determine, during each communication process, a corresponding target sub-band from the plurality of sub-bands according to a current communication frequency of the phased array antenna; the adjustment module 603 is configured to adjust a phase of each array element according to the center frequency of the target frequency sub-band.
In one apparatus embodiment, the adjustment module 603 is specifically configured to: determining an array element adjustment parameter corresponding to the center frequency of a target sub-frequency band from a one-to-one correspondence between preset different center frequencies and the array element adjustment parameter, wherein the adjustment parameter comprises a phase shift value of each array element; according to the adjustment parameters corresponding to the center frequency, each array element is adjusted; the adjustment parameters are parameters required to be adjusted for each array element when the antenna gain is maximum under the condition of corresponding center frequency.
In an embodiment of the device, the adjustment parameters further comprise attenuation values for each array element.
In an embodiment of the apparatus, the adjusting module 603 is further configured to, before adjusting the phase of each array element according to the center frequency of the target sub-band: according to the center frequency of each sub-frequency band, determining the phase difference of adjacent array elements corresponding to different center frequencies; for each center frequency, adjusting the phase value of each array element according to the phase difference of adjacent array elements to obtain a coarse adjustment result of the phase value of each array element; for each center frequency, adjusting the phase value of each array element, or simultaneously adjusting the phase value and the attenuation value of each array element until the antenna gain is maximum, and determining the fine adjustment result of the phase of each array element; and determining the adjustment parameters corresponding to each center frequency and comprising each array element phase shift value or simultaneously comprising each array element phase shift value and each attenuation value according to the coarse adjustment result and the fine adjustment result of each array element phase value.
In one apparatus embodiment, the adjustment module 603 is specifically configured to: based on the rough adjustment result of the phase value of each array element, adjusting the antenna angle of the phased array antenna and the simulated opposite side communication equipment to be consistent through a rotating platform arranged in a dark room; and adjusting the phase shift value of each array element, or adjusting the phase shift value and the attenuation value simultaneously until the antenna gain is maximum, and determining the phase shift value as a fine tuning result of each array element.
In one apparatus embodiment, the adjustment module 603 is specifically configured to: determining the phase difference of adjacent array elements according to the center frequency of the target sub-frequency band; and adjusting the phase of each array element according to the phase difference of the adjacent array elements.
In one embodiment of the apparatus, the adjustment module 603 is specifically configured to determine the phase difference between adjacent array elements according to the following equation: delta= (2pi/λ) ×d×sin θ; wherein delta is the phase difference of adjacent array elements; λ is the center frequency of the target sub-band, d is the spacing between adjacent array elements, and θ is the beam direction angle.
The embodiment of the device provided by the embodiment of the present invention is for implementing the above embodiments of the method, and specific flow and details refer to the above embodiments of the method, which are not repeated herein.
The phased array antenna beam accurate adjustment device provided by the embodiment of the invention has the same implementation principle and the same technical effects as those of the phased array antenna beam accurate adjustment method embodiment, and for the sake of brief description, reference may be made to corresponding contents in the phased array antenna beam accurate adjustment method embodiment.
Fig. 7 is a schematic structural diagram of an electronic device according to the present invention, and as shown in fig. 7, the electronic device may include: a processor (processor) 701, a communication interface (Communications Interface) 702, a memory (memory) 703 and a communication bus 704, wherein the processor 701, the communication interface 702 and the memory 703 communicate with each other through the communication bus 704. The processor 701 may invoke logic instructions in the memory 703 to perform a phased array antenna beam fine adjustment method comprising: acquiring a plurality of sub-frequency bands of a phased array antenna array element communication frequency band range, wherein the communication frequency band range is divided into a plurality of preset number of sub-frequency bands; in each communication process, determining a corresponding target sub-frequency band in the plurality of sub-frequency bands according to the current communication frequency of the phased array antenna; and adjusting the phase of each array element according to the center frequency of the target sub-frequency band.
Further, the logic instructions in the memory 703 may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform a phased array antenna beam accurate adjustment method provided by the methods described above, the method comprising: acquiring a plurality of sub-frequency bands of a phased array antenna array element communication frequency band range, wherein the communication frequency band range is divided into a plurality of preset number of sub-frequency bands; in each communication process, determining a corresponding target sub-frequency band in the plurality of sub-frequency bands according to the current communication frequency of the phased array antenna; and adjusting the phase of each array element according to the center frequency of the target sub-frequency band.
In yet another aspect, the present invention further provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the phased array antenna beam accurate adjustment method provided by the above embodiments, the method comprising: acquiring a plurality of sub-frequency bands of a phased array antenna array element communication frequency band range, wherein the communication frequency band range is divided into a plurality of preset number of sub-frequency bands; in each communication process, determining a corresponding target sub-frequency band in the plurality of sub-frequency bands according to the current communication frequency of the phased array antenna; and adjusting the phase of each array element according to the center frequency of the target sub-frequency band.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for accurately adjusting a beam of a phased array antenna, comprising:
acquiring a plurality of sub-frequency bands of a phased array antenna array element communication frequency band range, wherein the communication frequency band range is divided into a plurality of preset number of sub-frequency bands;
in each communication process, determining a corresponding target sub-frequency band in the plurality of sub-frequency bands according to the current communication frequency of the phased array antenna;
and adjusting the phase of each array element according to the center frequency of the target sub-frequency band.
2. The method for precisely adjusting the beam of the phased array antenna according to claim 1, wherein adjusting the phase of each array element according to the center frequency of the target sub-band comprises:
determining an array element adjustment parameter corresponding to the center frequency of a target sub-frequency band from a one-to-one correspondence between preset different center frequencies and the array element adjustment parameter, wherein the adjustment parameter comprises a phase shift value of each array element;
according to the adjustment parameters corresponding to the center frequency, each array element is adjusted;
the adjustment parameters are parameters required to be adjusted for each array element when the antenna gain is maximum under the condition of corresponding center frequency.
3. The method of claim 2, wherein the tuning parameters further comprise attenuation values for each element.
4. A method for accurately adjusting a phased array antenna beam according to claim 2 or 3, wherein before adjusting the phase of each array element according to the center frequency of the target sub-band, the method further comprises:
according to the center frequency of each sub-frequency band, determining the phase difference of adjacent array elements corresponding to different center frequencies;
for each center frequency, adjusting the phase value of each array element according to the phase difference of adjacent array elements to obtain a coarse adjustment result of the phase value of each array element;
for each center frequency, adjusting the phase value of each array element, or simultaneously adjusting the phase value and the attenuation value of each array element until the antenna gain is maximum, and determining the fine adjustment result of the phase of each array element;
and determining the adjustment parameters corresponding to each center frequency and comprising each array element phase shift value or simultaneously comprising each array element phase shift value and each attenuation value according to the coarse adjustment result and the fine adjustment result of each array element phase value.
5. The method for precisely adjusting the beam of the phased array antenna according to claim 4, wherein the adjusting the phase value of each array element or adjusting the phase value and the attenuation value of each array element simultaneously until the antenna gain is maximum, determining the fine adjustment result of the phase of each array element comprises:
based on the rough adjustment result of the phase value of each array element, adjusting the antenna angle of the phased array antenna and the simulated opposite side communication equipment to be consistent through a rotating platform arranged in a dark room;
and adjusting the phase shift value of each array element, or adjusting the phase shift value and the attenuation value simultaneously until the antenna gain is maximum, and determining the phase shift value as a fine tuning result of each array element.
6. The method for precisely adjusting the beam of the phased array antenna according to claim 1, wherein adjusting the phase of each array element according to the center frequency of the target sub-band comprises:
determining the phase difference of adjacent array elements according to the center frequency of the target sub-frequency band;
and adjusting the phase of each array element according to the phase difference of the adjacent array elements.
7. The method for precisely adjusting a beam of a phased array antenna according to claim 6, wherein determining the phase difference between adjacent array elements according to the center frequency of the target sub-band comprises:
Δ＝(2π/λ)*d*sinθ；
wherein delta is the phase difference of adjacent array elements; λ is the center frequency of the target sub-band, d is the spacing between adjacent array elements, and θ is the beam direction angle.
8. A phased array antenna beam accurate adjustment apparatus, comprising:
the acquisition module is used for acquiring a plurality of sub-frequency bands of the array element communication frequency band range of the phased array antenna, wherein the communication frequency band range is divided into a plurality of preset number of sub-frequency bands;
the comparison module is used for determining a corresponding target sub-frequency band in the plurality of sub-frequency bands according to the current communication frequency of the phased array antenna in each communication process;
and the adjusting module is used for adjusting the phase of each array element according to the center frequency of the target sub-frequency band.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the phased array antenna beam fine adjustment method of any one of claims 1 to 7 when the program is executed.
10. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor performs the steps of the phased array antenna beam fine adjustment method of any of claims 1 to 7.
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| CN117855838A (en) * | 2024-03-05 | 2024-04-09 | 成都大公博创信息技术有限公司 | Phased array antenna dynamic control method and system |
| CN117855838B (en) * | 2024-03-05 | 2024-05-17 | 成都大公博创信息技术有限公司 | Phased array antenna dynamic control method and system |
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