CN112310659B - Reconstructed wave beam pointing antenna array - Google Patents
Reconstructed wave beam pointing antenna array Download PDFInfo
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- CN112310659B CN112310659B CN201910690425.2A CN201910690425A CN112310659B CN 112310659 B CN112310659 B CN 112310659B CN 201910690425 A CN201910690425 A CN 201910690425A CN 112310659 B CN112310659 B CN 112310659B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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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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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a reconstructed beam pointing antenna array, which comprises a full-active phased array, a fixed beam pointing array, a beam control module and a power synthesis network, wherein the output ends of the full-active phased array and the fixed beam pointing array are connected with the input end of the power synthesis network; the fixed beam pointing array is turned on when the fully active phased array scans to a particular angular range. And the beam control module judges the reconstructed beam pointing antenna array working mode through calculation, and turns on or off the specific fixed beam pointing array. By adopting the specific fixed beam pointing array, the gain is effectively compensated and reduced in a large-angle scanning mode, the cost of devices is reduced, and the cost is reduced; and the small angle scanning gain of the system is not lost.
Description
Technical Field
The invention relates to the field of antennas, in particular to a reconstructed beam pointing antenna array.
Background
The problem of gain reduction of the phased array antenna can occur during large-angle scanning, and gain compensation can be performed through the reconfigurable antenna array. However, the existing general reconfigurable scheme is based on the directional diagram reconfiguration of the unit antenna, and two general forms are available, one is to adopt a control switch to switch a beam mode to form a wide beam to widen the beam width of the antenna unit, so that the gain drop is reduced during large-angle scanning. The other is reconstruction based on a subarray level, for example, there is a subarray based on one-drive-two, an initial state of various angle beam directions is randomly formed in the subarray, phase control is performed on the subarray, and a proper subarray is selected to be turned on in a scanning angle. The method can realize large-angle scanning under the configuration of one driving two, and the scanning gain is reduced less relative to the top gain, but the method loses the realization of the axial or small-angle scanning gain of the antenna.
Disclosure of Invention
The invention aims to provide a reconstructed beam pointing antenna array to solve the problem of gain reduction of a phased array antenna during large-angle scanning.
In order to achieve the purpose, the invention adopts the following technical scheme:
a reconstructed beam pointing antenna array comprises a full active phased array, a power synthesis network and a plurality of fixed beam pointing arrays with different beam pointing directions, wherein the power synthesis network is used for combining the full active phased array and each fixed beam pointing array; the output ends of the full active phased array and the fixed beam pointing array are both connected with the input end of the power synthesis network, and the total beam pointing formed by the fixed beam pointing arrays covers a large-angle scanning space; the beam control module is connected with the full-active phased array and the fixed beam pointing array;
when the reconstructed wave beam pointing antenna array is in a large-angle scanning mode, the wave beam control module starts a full-active phased array and starts a corresponding fixed wave beam pointing array according to the wave beam pointing direction of the full-active phased array.
Optionally, when the reconstructed beam pointing antenna array is in the small-angle scanning mode, the beam control module turns on the full active phased array and turns off the fixed beam pointing array.
Optionally, the full-active phased array includes a first power division network and a plurality of first antenna modules, output ends of the plurality of first antenna modules are all connected to the first power division network, and an output end of the first power division network is connected to an input end of the power combining network.
Optionally, the first antenna module includes a first antenna element, a first radio frequency T/R component, a phase shifter, and an attenuator;
the output end of the first antenna unit is connected with the input end of the first radio frequency T/R component, the output end of the first radio frequency T/R component is connected with the input end of the phase shifter, the output end of the phase shifter is connected with the input end of the attenuator, and the output end of the attenuator is connected with the first power division network;
the attenuator and the phase shifter are also connected with the beam control module.
Optionally, each fixed beam pointing array includes a second radio frequency T/R component, a second power division network, and a plurality of second antenna modules, an output end of each second antenna module is connected to an input end of the second power division network, and an output end of the second power division network is connected to an input end of the second radio frequency T/R component; and the output end of the second radio frequency T/R component is connected with the power synthesis network.
Optionally, each of the second antenna modules includes a second antenna unit and a delay line, an input end of the second antenna unit is connected to an input end of the delay line, and an output end of the delay line is connected to an input end of the second power division network;
the second radio frequency T/R component is integrated with an array switch for controlling the fixed beam pointing array to be turned on/off, and the array switch is connected with the beam control module.
Optionally, the second radio frequency T/R component is a high-power T/R component, and the power of the second radio frequency T/R component is greater than that of the first radio frequency T/R component.
A user terminal or device comprising a reconstructed beam pointing antenna array as described above.
Compared with the prior art, the invention has the following beneficial effects:
according to the reconstructed beam pointing antenna array provided by the invention, during large-angle scanning, the beam control module judges the working mode of the reconstructed beam pointing antenna array through calculation, and turns on or off a specific fixed beam pointing array, and the fixed beam pointing array and a full-active phased array are combined through a power synthesis network, so that the gain and the EIRP are improved. According to the invention, by adopting the specific fixed beam pointing array, the gain is effectively compensated and reduced in a large-angle scanning mode, the cost of devices is reduced, and the cost is reduced; and the small angle scanning gain of the system is not lost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
The structures, proportions, and dimensions shown in the drawings and described in the specification are only for the purpose of understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined in the claims, and therefore, the present disclosure is not limited to the essential meanings of the technology, and any modifications of the structures, changes of the proportions, or adjustments of the dimensions, should be within the scope of the disclosure without affecting the efficacy and attainment of the same.
Fig. 1 is a schematic diagram of a reconstructed beam pointing antenna array according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a fully active phased array according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a fixed beam pointing array according to an embodiment of the present invention.
The pattern is scanned.
Illustration of the drawings: 1. a fully active phased array; 10. a first antenna module; 11. a first antenna element; 12. a first radio frequency T/R component; 13. a phase shifter; 14. an attenuator; 15. a first power division network; 2. a fixed beam pointing array; 20. a second antenna module; 21. a second antenna element; 22. a delay line 22; 23. a second power distribution network; 24. a second radio frequency T/R component; 3. a power combining network; 4. a beam steering module 4.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. It should be noted that when a module is referred to as being "connected" to another module, it can be directly connected to the other module or intervening modules may also be present.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example one
Referring to fig. 1-3, the present embodiment provides a reconstructed beam-pointing antenna array, which includes a full-active phased array 1, at least one fixed beam-pointing array 2, a beam control module 4, and a power synthesis network 3 for combining the full-active phased array 1 and the fixed beam-pointing array 2. The output ends of the full active phased array 1 and the fixed beam pointing array 2 are both connected with the input end of the power synthesis network 3, and the beam control module 4 is connected with the full active phased array 1 and the fixed beam pointing array 2.
When the reconstructed beam pointing antenna array is in a large-angle scanning mode, the beam control module 4 starts the full-active phased array 1 and starts the corresponding fixed beam pointing array 2 according to the beam pointing direction of the full-active phased array 1.
The reconstructed beam pointing antenna array provided by this embodiment starts the fixed beam pointing array 2 according to the beam pointing direction of the all-active phased array 1 during large-angle scanning, so as to meet the specific beam pointing requirement. The full-active phased array 1 and the fixed beam pointing array 2 are combined through the power synthesis network 3, and the gain and the EIRP (equivalent omnidirectional radiation power) during large-angle scanning are improved. According to the invention, by adopting the specific fixed beam pointing array 2, the gain is effectively compensated and reduced in a large-angle scanning mode, the cost of devices is reduced, and the cost is reduced; and the small angle scanning gain of the system is not lost.
In this embodiment, the reconstructed beam pointing antenna array includes a plurality of fixed beam pointing arrays 2 with different beam pointing directions, and an output end of each of the fixed beam pointing arrays 2 is connected to an input end of the power combining network 3. The total beam formed by the plurality of fixed beam pointing arrays 2 is directed to a space covering a large angle scan. Thereby avoiding the situation that the gain cannot be improved through the fixed beam pointing array 2 in a certain direction during large-angle scanning. The number of the fixed beam pointing arrays 2 may be set according to actual requirements, and the present invention is not limited thereto.
Specifically, the beam control module 4 controls on/off of the full active phased array 1 and the fixed beam pointing array 2, and controls the beam direction of the full active phased array 1.
The reconstructed beam pointing antenna array specifically comprises a small-angle scanning mode and a large-angle scanning mode. When the reconstructed beam pointing antenna array is in a small-angle scanning mode, the beam control module 4 turns on the all-active phased array 1, turns off the fixed beam pointing array 2, and performs phasing on the phase shifters 13 of the all-active phased array 1. Thereby, a small angle scanning of the beam is achieved.
When the reconstructed beam pointing antenna array is in a large-angle scanning mode, the beam control module 4 starts the all-active phased array 1, performs phasing on the phase shifter 13 of the all-active phased array 1, and starts the corresponding fixed beam pointing array 2 according to the beam pointing direction of the all-active phased array 1. Thereby, the gain is increased by fixing the beam pointing array 2 at the time of beam large angle scanning.
In this embodiment, the fully active phased array 1 specifically includes a first power division network 15 and a plurality of first antenna modules 10, output ends of the plurality of first antenna modules 10 are all connected to the first power division network 15, and an output end of the first power division network 15 is connected to an input end of the power combining network 3. That is, the outputs of all the first antenna modules 10 are combined into one path through the first power dividing network 15, and then input into the power combining network 3 and the input of the fixed directional array for combining.
Specifically, each first antenna module 10 includes a first antenna element 11, a first radio frequency T/R component 12, a phase shifter 13, and an attenuator 14. An output end of the first antenna unit 11 is connected to an input end of the first radio frequency T/R component 12, an output end of the first radio frequency T/R component 12 is connected to an input end of the phase shifter 13, an output end of the phase shifter 13 is connected to an input end of the attenuator 14, and an output end of the attenuator 14 is connected to the first power division network 15.
The beam scanning is realized by the first antenna element 11, the first radio frequency T/R component 12, the phase shifter 13 and the attenuator 14 which are connected in sequence. The phase shifter 13 is configured to perform weighted design on the feeding phase of the first antenna element 11, the phase shifter 13 is connected to the beam control module 4 and is controlled by the beam control module 4, the attenuator 14 is configured to perform weighted design on the feeding amplitude of the first antenna element 11, and the attenuator 14 is connected to the beam control module 4 and is controlled by the beam control module 4.
In this embodiment, each fixed beam pointing array 2 includes a second radio frequency T/R component 24, a second power division network 23, and a plurality of second antenna modules 20, an output end of each second antenna module 20 is connected to an input end of the second power division network 23, an output end of the second power division network 23 is connected to an input end of the second radio frequency T/R component 24, and an output end of the second radio frequency T/R component 24 is connected to the power combining network 3. That is, each fixed beam pointing array 2 only includes one second rf T/R component 24, and the plurality of second antenna modules 20 are combined by the second power dividing network 23 and then input into the second rf T/R component 24.
Specifically, each of the second antenna modules 20 includes a second antenna unit 21 and a delay line 22, an input end of the second antenna unit 21 is connected to an input end of the delay line 22, and an output end of the delay line 22 is connected to an input end of the second power dividing network 23.
The second rf T/R component 24 is integrated with an array switch for controlling the on/off of the fixed beam pointing array 2, and the array switch is connected to the beam control module 4.
The second rf T/R device 24 is a high power T/R device, which in this embodiment is a T/R device including a high power PA (power amplifier). The high-power PA is different from the common PA mainly in the process mode adopted by the device, and belongs to the existing commercial products. The power of the PA in the second rf T/R assembly 24 is greater than the power of the PA in the first rf T/R assembly 12, because the PA in the second rf T/R assembly 24 needs to push multiple second antenna elements 21, and the PA in the first rf T/R assembly 12 needs to push only one first antenna element 11.
The design of the fixed beam pointing array 2 in this embodiment can realize fixed beam pointing by the second antenna element 21 and the delay line 22 connected in sequence. The high-power T/R assembly can be used for exciting the whole plurality of second antenna units 21 by one second radio frequency T/R assembly 24, so that only one second radio frequency T/R assembly 24 is used in each fixed beam pointing array 2, the use of amplitude modulation and phase modulation devices is reduced, and the cost is saved.
In summary, the beam control module 4 in this embodiment is responsible for controlling the rf devices, and the rf devices include the phase shifter 13, the PA, the attenuator 14, and the switch.
The embodiment provides a reconstructed beam pointing antenna array, which includes a full-active phased array 1 and a fixed beam pointing array 2, wherein during large-angle scanning, the fixed beam pointing array 2 is turned on according to the beam pointing direction of the full-active phased array 1, and the fixed beam pointing array and the full-active phased array are combined through a power synthesis network 3, so that the gain and the EIRP (equivalent omnidirectional radiation power) are improved. According to the invention, by adopting the specific fixed beam pointing array 2, the gain is effectively compensated and reduced in a large-angle scanning mode, the cost of devices is reduced, and the cost is reduced; and the small angle scanning gain of the system is not lost. Further, in this embodiment, the beam control module 4 controls the full active phased array 1 and the fixed beam pointing array 2 to be turned on and off, so that the switching between the small-angle scanning mode and the large-angle scanning mode can be realized. Furthermore, the fixed beam pointing array 2 comprises a high-power T/R component, so that the whole fixed beam pointing array 2 is excited by one T/R component, and the cost of the device is saved.
Example two
A second embodiment provides a user terminal or a device including the reconstructed beam pointing antenna array according to the first embodiment, where the user terminal may be a mobile phone, a computer, or the like, and is not limited in this patent.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A reconstructed beam pointing antenna array comprises a full active phased array, a beam control module, a power synthesis network and a plurality of fixed beam pointing arrays with different beam pointing directions, wherein the power synthesis network is used for combining the full active phased array and the fixed beam pointing arrays; the output ends of the full active phased array and each fixed beam pointing array are connected with the input end of the power synthesis network, and a total beam formed by the fixed beam pointing arrays is pointed to cover a large-angle scanning space; the beam control module is connected with the full-active phased array and the fixed beam pointing array;
when the reconstructed beam pointing antenna array is in a large-angle scanning mode, the beam control module starts a full-active phased array and starts a corresponding fixed beam pointing array according to the beam pointing direction of the full-active phased array.
2. The array of claim 1, wherein the beam steering module turns on the full active phased array and turns off the fixed beam steering array when the array is in a small angle scan mode.
3. The array of claim 1, wherein the full-active phased array comprises a first power division network and a plurality of first antenna modules, wherein output terminals of the plurality of first antenna modules are connected to the first power division network, and an output terminal of the first power division network is connected to an input terminal of the power combining network.
4. The reconstructed beam pointing antenna array of claim 3, wherein the first antenna module comprises a first antenna element, a first radio frequency T/R component, a phase shifter and an attenuator;
the output end of the first antenna unit is connected with the input end of the first radio frequency T/R component, the output end of the first radio frequency T/R component is connected with the input end of the phase shifter, the output end of the phase shifter is connected with the input end of the attenuator, and the output end of the attenuator is connected with the first power division network;
the attenuator and the phase shifter are also connected with the beam control module.
5. The array of claim 4, wherein each of the fixed beam pointing arrays comprises a second RF T/R component, a second power division network, and a plurality of second antenna modules, an output of each of the second antenna modules is connected to an input of the second power division network, and an output of the second power division network is connected to an input of the second RF T/R component; and the output end of the second radio frequency T/R component is connected with the power synthesis network.
6. The array of claim 5, wherein each of the second antenna modules comprises a second antenna element and a delay line, an input end of the second antenna element is connected to an input end of the delay line, and an output end of the delay line is connected to an input end of the second power division network;
the second radio frequency T/R component is integrated with an array switch for controlling the fixed beam pointing array to be turned on/off, and the array switch is connected with the beam control module.
7. The array of claim 5, wherein the second RF T/R element is a high power T/R element, the second RF T/R element having a power greater than the first RF T/R element.
8. A user terminal or device comprising a reconstructed beam pointing antenna array according to any of claims 1 to 7.
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| TWI801155B (en) * | 2021-04-26 | 2023-05-01 | 友達光電股份有限公司 | Antenna array |
| CN113571908A (en) * | 2021-07-14 | 2021-10-29 | 北京无线电测量研究所 | Two-dimensional reconfigurable light-operated beam forming network device shared by transceiving |
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Denomination of invention: A Reconstructed Beam Pointing Antenna Array Effective date of registration: 20230814 Granted publication date: 20230307 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU KESAI TECHNOLOGY Co.,Ltd. Registration number: Y2023980051994 |
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