WO2022042206A1 - 多频段天线系统和基站 - Google Patents
多频段天线系统和基站 Download PDFInfo
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- WO2022042206A1 WO2022042206A1 PCT/CN2021/109718 CN2021109718W WO2022042206A1 WO 2022042206 A1 WO2022042206 A1 WO 2022042206A1 CN 2021109718 W CN2021109718 W CN 2021109718W WO 2022042206 A1 WO2022042206 A1 WO 2022042206A1
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- 238000003491 array Methods 0.000 claims abstract description 53
- 230000005855 radiation Effects 0.000 claims description 97
- 230000010354 integration Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 27
- 238000013461 design Methods 0.000 description 11
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000010295 mobile communication Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas 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
- H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
- H01Q5/42—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more imbricated arrays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
- H01Q15/0026—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective said selective devices having a stacked geometry or having multiple layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/104—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces using a substantially flat reflector for deflecting the radiated beam, e.g. periscopic antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/108—Combination of a dipole with a plane reflecting surface
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- H01Q—ANTENNAS, i.e. RADIO AERIALS
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- H01Q21/0075—Stripline fed arrays
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- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
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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
- H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
- H01Q5/45—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more feeds in association with a common reflecting, diffracting or refracting device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
Definitions
- the present application relates to the field of communication technologies, and more particularly, to a multi-band antenna system and a base station.
- the base station antenna is the foundation of current mobile communication and occupies an important position in mobile communication. In order to meet people's increasing demands for mobile communication speed and bandwidth, it is necessary to design higher speed and larger capacity communication systems.
- the base station antenna system is currently evolving from the fourth generation mobile communication technology (4th-generation, 4G) to the fifth generation mobile communication technology (5th-generation, 5G).
- the base station antenna includes passive antennas and active antennas, and the active antennas may be, for example, massive multiple-input multiple-output (massive MIMO) antennas.
- massive MIMO massive multiple-input multiple-output
- a key technology at present is to provide operators with active and passive integrated antenna panel solutions. Among them, multi-band antenna integration is the key technology in the antenna system.
- the present application provides a multi-band antenna system and a base station, which can realize the layout of a multi-band architecture and have good system performance.
- a multi-band antenna system including: a plurality of radiating element arrays, a feed network corresponding to the plurality of radiating element arrays, a frequency selective surface FSS, and a reflector; wherein the reflector is horizontal When placed, the plurality of radiation element arrays are located above the reflector, and all or part of the radiation element arrays in the plurality of radiation element arrays are stacked; the FSS is located between the stacked radiation element arrays; the stacked arrangement
- the feed network corresponding to at least one radiation element array in the radiation element array is electrically connected to the FSS, or the feed network corresponding to the at least one radiation element array is integrated on the FSS.
- FSS is located between the stacked radiation element arrays
- the above-mentioned "FSS is located between the stacked radiation element arrays" may include various possible implementations. For example, there are two adjacent radiation element arrays that are stacked and placed, and a layer of FSS may be provided between the two radiation element arrays. , or a multi-layer FSS; for another example, between every two adjacent radiation element arrays placed in layers, a layer of FSS, or a multi-layer FSS is provided. It should be understood that the multiple layers of FSS are placed in adjacent stacks.
- the feed network corresponding to at least one radiating element array is electrically connected to the FSS may also include various possible implementations.
- the feeding network corresponding to one radiating element array can be electrically connected to the FSS connection, or, the feed network corresponding to multiple radiating element arrays can be electrically connected to the FSS;
- the feeding network corresponding to one radiating element array can be electrically connected to one of the FSS layers, or multiple The feed network corresponding to the radiating element array can be electrically connected to one of the layers of the FSS.
- the feeding network may be located above the reflective plate or below the reflective plate, which is not limited in this embodiment of the present application.
- the FSS has a pass-band characteristic to the working frequency of the antenna, so that the electromagnetic waves radiated by the antenna can pass through the FSS well, thereby reducing the influence of the feeding network on the electromagnetic waves radiated by the antenna.
- the feeder network is connected to the FSS as a whole, so that the feeder network is integrated into a part of the FSS, and the feeder network above will no longer affect the electromagnetic radiation of the antenna.
- the FSS is one layer, or a multi-layer; when the FSS is a multi-layer, the feed network corresponding to the at least one radiating element array is electrically connected to the FSS It includes: the feed network corresponding to the at least one radiation element array is electrically connected to at least one layer of the FSS; the feed network corresponding to the at least one radiation element array is integrated on the FSS and includes: the feed corresponding to the at least one radiation element array The network is integrated on at least one layer of the FSS.
- frequency bands corresponding to the plurality of radiation element arrays respectively include at least two different frequency bands.
- the above different frequency bands may include frequency bands corresponding to 4G antennas and frequency bands corresponding to 5G antennas.
- the electrical connection manner is any of the following: a direct current connection, a coupled connection, or a segmented direct current connection.
- the feed network includes a cable.
- At least a portion of the cable is parallel to the FSS.
- the feed network is a microstrip structure, or the feed network includes a microstrip line.
- the FSS includes a first FSS, and among the plurality of radiation element arrays, a radiation element array located on an upper layer of the first FSS and a radiation element array located on a lower layer of the first FSS
- the radiating element arrays are placed in different radomes. This is more conducive to the installation of the antenna and subsequent upgrades.
- the first FSS here refers to any one layer of FSS in the at least one layer of FSS, which does not limit the protection scope of the embodiments of the present application.
- the multi-band antenna system may include a larger number of radomes to achieve a protective effect, which is not limited in this embodiment of the present application.
- the FSS includes a first FSS
- the radiation element array located on the upper layer of the first FSS includes a plurality of radiation element arrays corresponding to at least two different frequency bands
- the radiation element array located in the lower layer of the first FSS includes a plurality of radiation element arrays corresponding to at least two different frequency bands respectively.
- At least one layer in the FSS is an FSS with a grid.
- a second aspect provides a base station, where the base station includes the multi-band antenna system in the first aspect or any one of the implementations of the first aspect and a radio frequency module, where the radio frequency module is connected to the multi-band antenna system.
- FIG. 1 shows a schematic diagram of a multi-band antenna system according to an embodiment of the present application.
- FIG. 2 shows a schematic diagram of another multi-band antenna system according to an embodiment of the present application.
- FIG. 3 shows a schematic diagram of another multi-band antenna system according to an embodiment of the present application.
- FIG. 4 shows a schematic diagram of another multi-band antenna system according to an embodiment of the present application.
- FIG. 5 shows a schematic diagram of another multi-band antenna system according to an embodiment of the present application.
- FIG. 6 shows a schematic diagram of another multi-band antenna system according to an embodiment of the present application.
- FIG. 7 shows a schematic diagram of another multi-band antenna system according to an embodiment of the present application.
- Figure 8 shows a schematic diagram of an FSS with a grid.
- FIG. 9 shows a schematic diagram of the electrical connection between the radiating element array and the FSS through the feeding network.
- FIG. 10 shows another schematic diagram of the radiating element array being electrically connected to the FSS through the feeding network.
- Figure 11 shows a schematic diagram of the cable and FSS DC connections.
- Figure 12 shows a schematic diagram of the cable and FSS coupling connections.
- Figure 13 shows a schematic diagram of the DC connection of cables and FSS segments.
- Figure 14 shows a schematic diagram of the microstrip cable and the FSS coupling connection.
- Figure 15 shows a schematic diagram of microstrip cable and FSS integration.
- FIG. 16 shows a schematic diagram of another multi-band antenna system according to an embodiment of the present application.
- FIG. 17 shows a schematic diagram of a base station according to an embodiment of the present application.
- LTE long term evolution
- FDD frequency division duplex
- TDD time division duplex
- UMTS universal mobile telecommunication system
- WiMAX worldwide interoperability for microwave access
- 5G fifth generation
- 5G fifth generation
- new radio new radio
- NR device to device
- V2X vehicle to everything
- the antenna may include one or more of a radiating element, a reflector (or, a base plate, an antenna panel), a feeding network (or, a power distribution network), and a radome.
- the antenna element can constitute the radiation unit of the antenna.
- Antenna vibrators can be referred to as vibrators for short, which have the function of guiding and amplifying electromagnetic waves.
- the feeding network realizes the feeding function, and the feeding is the power supply. In the field of antennas, feeding can be directed to supply power to the antenna, or in other words, provide energy.
- the function of the feeding network is to feed the signal to each radiating element of the antenna according to a certain amplitude and phase, or to feed the signal received from each radiating element to the signal processing unit of the base station according to a certain amplitude and phase.
- the feed network is usually composed of controlled impedance transmission lines, and the feed network can include devices such as phase shifters.
- FSS is a two-dimensional periodic array structure that can effectively control the transmission and reflection of incident electromagnetic waves.
- the FSS can be a spatial filter that exhibits obvious band-pass or band-stop filtering characteristics when interacting with electromagnetic waves.
- FSS has a specific frequency selection effect.
- the base station in this embodiment of the present application may be a device used for communicating with terminal equipment, including base stations in the global system for mobile communications (GSM) system or code division multiple access (code division multiple access, CDMA).
- GSM global system for mobile communications
- CDMA code division multiple access
- station base transceiver station, BTS
- BTS can also be wideband code division multiple access
- a Node B (NodeB, NB) in a (wideband code division multiple access, WCDMA) system, an evolved NodeB (evolved NodeB, eNB or eNodeB) in an LTE system, or a cloud radio access network (cloud).
- the wireless controller in the radio access network (CRAN) scenario, or the base station may include relay stations, access points, in-vehicle devices, wearable devices, and base stations in future 5G networks or future evolved land public mobile communication networks (public land A base station in a mobile network, PLMN) network, etc., is not limited in this embodiment of the present application.
- the base station antenna is an important part of the base station. With the evolution of the base station antenna system, the multi-band antenna system has become the current research focus.
- the radiating element array of one or more frequency bands and their feed networks are all located in the radiation of another frequency band. above the cell array.
- the induced current on the upper cable will inductively couple with the lower radiating element array, and the induced current will be excited, which will have a great impact on the radiating element array in each frequency band, for example, causing the radiation pattern to distort or cause the radiation pattern to resonate.
- the present application provides a new multi-band antenna system, which can realize the layout of a multi-band architecture and has good system performance.
- the multi-band antenna system 100 includes: four radiating element arrays (radiating element array 110, radiating element array 120, radiating element array 130, radiating element array 140), three feeding networks (feeding network 111, feeding network 121, feeding network 131) corresponding to the four radiating element arrays, frequency selective surface FSS 150, and reflecting plate 160.
- the radiating element array and the feeding network may be in a many-to-one relationship, or may be in a one-to-one relationship, which is not limited in this embodiment of the present application.
- the radiating element array 110 corresponds to the feeding network 111
- the radiating element array 120 corresponds to the feeding network 121
- both the radiating element array 130 and the radiating element array 140 correspond to the feeding network 131 .
- the radiating element array can be electrically connected to its corresponding feeding network.
- the radiation element array 110 is electrically connected to the feed network 111
- the radiation element array 120 is electrically connected to the feed network 121
- the radiation element array 130 and the radiation element array 140 are both electrically connected to the feed network 131 .
- the above-mentioned four radiation element arrays are located above the reflective plate 160, and the above-mentioned four radiation element arrays are stacked. It should be noted that, for the stacking arrangement in the embodiments of the present application, reference may be made to the arrangement of the four radiation units in FIG. 1 : as shown in FIG. 1 , the first radiation unit array 110 , the second radiation unit array 120 , the The third radiation element array 130 and the fourth radiation element array 140 are stacked from bottom to top. In a possible design, the planes corresponding to each radiating element are parallel to each other.
- the above-mentioned three feeding networks can be respectively located above the reflector 160 or below the reflector 160.
- the feed network 111 can pass through the reflector 160 and be located below the reflector 160.
- the feeding network 121 and the feeding network 131 may be located above the reflection plate 160, but this is not limited in this embodiment of the present application.
- an FSS 150 is provided, which is located between the radiating element array 120 and the radiating element array 130.
- the feed network 131 corresponding to the radiating element array 130 is electrically connected to the FSS 150 .
- the feed network corresponding to other radiation element arrays can also be electrically connected to the FSS 150, for example, the feed network 121 corresponding to the radiation element array 120 can also be electrically connected to the FSS 150, which is not shown in FIG. 1 .
- the FSS150 is to be electrically connected to at least one of the feeder networks corresponding to the four radiating element arrays to realize the grounding of the feeder network connected to the FSS150, and the FSS150 is connected to the feeder network corresponding to the radiating element array located on it in the product implementation. easier.
- Adding FSS between the stacked radiating element arrays can reduce the influence of the induced current generated on the feeding network on each radiating element array.
- the FSS has a pass-band characteristic to the operating frequency of the antenna, so that the electromagnetic waves radiated by the antenna located under the FSS can pass through the FSS well, thereby reducing the performance of the feed network on the electromagnetic waves radiated by the antenna. Impact. It should be understood that the feeder network is connected to the FSS as a whole, so that the feeder network is integrated into a part of the FSS, and the feeder network above will no longer affect the electromagnetic radiation of the antenna.
- FIG. 1 only lists one possible design, and the multi-band antenna system of the present application can also be designed with other various structures.
- FIG. 2 shows another multi-band antenna system 200 of the present application.
- the radiating element array 120, the radiating element 130 and the radiating element array 140 may be placed above the radiating element array 110, but the radiating element array 120 and the radiation element array 130 are placed on one layer, in other words, the radiation element array 120 and the radiation element array 130 are not stacked.
- the FSS 150 is located between the radiation element array 110 , the radiation element array 120 , and the radiation element array 130 .
- the FSS 150 may be electrically connected to the feeder network 121, may also be electrically connected to the feeder network 131, and may also be electrically connected to the feeder network 121 and the feeder network 131, which is not limited in this embodiment of the present application.
- FIG. 2 For other details of FIG. 2 , reference may be made to the description of FIG. 1 , which will not be repeated here.
- the multiple radiating element arrays in the multi-band antenna system may be all stacked (as shown in FIG. 1 ), or some of them may be stacked (as shown in FIG. 2 ), which is not limited in this embodiment of the present application. It should be understood that the embodiment of the present application only exemplifies the number of radiating element arrays as 4, but the multi-band antenna system may also have other numbers of radiating element arrays, for example, the number is 2, and the two radiating element arrays are respectively located in the FSS above and below. This is also not limited in the embodiments of the present application.
- the number of layers of the FSS 150 is only illustrated by one layer.
- the multi-band antenna system of the embodiment of the present application may include multiple layers of FSS. Exemplary descriptions are given below with reference to FIG. 3 and FIG. 4 .
- FIG. 3 shows another multi-band antenna system 300 of the present application, including the FSS 150 and the FSS 151, wherein the radiating element array 110, the radiating element array 120, the radiating element array 130 and the radiating element array 140 are stacked from bottom to top Placed, the FSS 151 is located between the radiation element array 110 and the radiation element array 120, and the FSS 150 is located between the radiation element array 120 and the radiation element array 130.
- the feeding network 121 corresponding to the radiating element array 120 is electrically connected to the FSS 151 .
- the feed network 131 corresponding to the radiating element array 130 is electrically connected to the FSS 150 .
- the feeder network 121 corresponding to the above-mentioned radiation element array 120 may also be electrically connected to the FSS 150, that is, the feeder network 121 and the feeder network 131 are both electrically connected to the FSS 150, which is not shown in the figure, but is implemented in this application. The example does not limit this.
- another layer of FSS may also be disposed between the radiation element array 130 and the radiation element array 140, which is not shown in FIG. 3 .
- FIG. 3 For other details of FIG. 3 , reference may be made to the description of FIG. 1 , which will not be repeated here.
- FIG. 4 shows another multi-band antenna system 400 of the present application, including the FSS 150 and the FSS 151, wherein the radiating element array 110, the radiating element array 120, the radiating element array 130 and the radiating element array 140 are stacked from bottom to top Placed, both the FSS 150 and the FSS 151 are located between the radiation element array 120 and the radiation element array 130, that is, the FSS 150 and the FSS 151 are placed adjacent to each other and stacked. Setting up a multi-layer FSS is more conducive to reducing the influence of the induced current generated on the feeding network on each radiating element array.
- the feed network 131 corresponding to the radiating element array 130 is electrically connected to the FSS 150 .
- the above-mentioned feeder network 131 can also be electrically connected to the FSS 151, that is, the feeder network 131 is electrically connected to the FSS 150 and FSS 151, or the feeder network 131 is electrically connected to the FSS 150, and the feeder network 121 is electrically connected to the FSS 151.
- the electrical connection is not shown in the figure, but is not limited in the embodiment of the present application.
- At least one layer of FSS can also be provided between the radiation element array 110 and the radiation element array 120, and at least one layer of FSS can also be provided between the radiation element array 130 and the radiation element array 140.
- FIG. 4 reference may be made to the description of FIG. 1 , which will not be repeated here.
- a multi-layer FSS may be provided between any two adjacent radiation element arrays in the four radiation element arrays, which is more conducive to reducing the effect of the induced current generated on the feeding network on each radiation element array. Impact.
- At least one layer of FSS may be provided between any two adjacent radiating element arrays, and the feed network corresponding to at least one radiating element array It is electrically connected to the at least one layer of FSS, thereby reducing the influence of the induced current generated by the feeding network on each radiating element array, and improving the performance of the multi-band antenna system.
- the frequency bands respectively corresponding to the above-mentioned multiple radiation element arrays are at least two different frequency bands.
- the radiation element array 110 corresponds to the first frequency band
- the radiation element array 120 corresponds to the second frequency band
- the first frequency band and the second frequency band are not equal.
- FIG. 5 shows a schematic diagram of another multi-frequency band antenna system according to an embodiment of the present application.
- the radiation element array of frequency band 2 is located on the reflector
- FSS 1 is located above the radiation element array of frequency band 2
- the radiation element array of frequency band 1 is located above FSS 1, that is, FSS 1 is located on the radiation element of frequency band 1. between the array and the radiating element array of band 2.
- the feed network corresponding to the radiating unit of the frequency band 1 may be referred to as the feed network of the frequency band 1 for short, and the feed network of the frequency band 1 is electrically connected to the FSS 1 .
- FIG. 6 shows a schematic diagram of another multi-band antenna system.
- the multi-band antenna system includes FSS 1 and FSS 2.
- FSS 1 and FSS 2 are stacked and located between the radiating element array of frequency band 1 and the radiating element array of frequency band 2. between.
- the feed network of band 1 is electrically connected to FSS 1.
- the above-mentioned frequency band 1 is a frequency band corresponding to a 4G antenna
- the above-mentioned frequency band 2 is a frequency band corresponding to a 5G antenna, but this is not limited in this embodiment of the present application.
- FIG. 7 shows a schematic diagram of another multi-frequency band antenna system according to an embodiment of the present application.
- the radiation element array of frequency band 2 is located on the reflector
- FSS 1 is located above the radiation element array of frequency band 2
- the radiation element array of frequency band 1 and the radiation element array of frequency band 3 are located above FSS 1.
- the radiation element array of frequency band 1 and the radiation element array of frequency band 3 are located on the same layer.
- the feed network corresponding to the radiating unit of frequency band 1 may be referred to as the feed network of frequency band 1 for short
- the feed network corresponding to the radiation unit of frequency band 3 may be referred to as the feed network of frequency band 3
- the feed network of frequency band 1 and the feed network of frequency band 3 The feed network is electrically connected to the FSS 1.
- the radiating element arrays of frequency bands 1 and 3 may be fed by a common feeding network, which is electrically connected to the FSS1.
- FSS 1 (and FSS 2) can transmit the electromagnetic waves radiated by the array in frequency band 2, and at least partially reflect the electromagnetic waves radiated by the array in frequency band 1, thereby reducing the induction generated on the feeding network. The effect of current on individual radiating element arrays.
- the FSS in this embodiment of the present application is an FSS with a grid, such as a bandpass FSS, as shown in FIG. 8 .
- the equivalent circuit of the band-pass FSS is a parallel resonant cable, the resonant point is open, and the radiated electromagnetic wave corresponding to the resonant point is fully transmitted at the resonant point.
- the FSS may be any structure with a transmission function, which is not limited in this embodiment of the present application.
- FIG. 9 and 10 show two possible schematic diagrams in which the radiating element array of frequency band 1 involved in the above figure is electrically connected to the FSS 1 through the feeding network.
- the radiating element array of frequency band 1 is connected to FSS 1 by a cable, and a part of the cable is parallel to the plane where FSS 1 is located.
- the radiating element array of frequency band 1 is fed down through the balun, the balun is connected to the cable, and is connected to the FSS through the cable, and the cable is parallel to the plane where the FSS 1 is located, which is easy to connect.
- the cables in FIG. 9 and FIG. 10 can also be replaced with transmission lines integrated in the FSS 1, which are not limited in this embodiment of the present application.
- the above-mentioned cables parallel to the FSS can be arranged on the same side of the FSS 1 as the radiating element array of the frequency band 1, or, the above-mentioned cables parallel to the FSS can be distributed with the radiating element array of the frequency band 1 on both sides of the FSS 1, That is, the cable can be laid out through the FSS 1, which is not limited in this embodiment of the present application.
- the electrical connection between the feeder network and the FSS is any one of the following: DC connection, coupling connection, or segmented DC connection.
- the solution is described by taking the electrical connection between the feeder network and the FSS as an example, in another possible design, the feeder network may be integrated on the FSS.
- the feeding network in this embodiment of the present application may include cables (as shown in FIGS. 11 to 13 ), microstrip lines (as shown in FIGS. 14 and 15 ), or other forms of transmission lines, which are not limited in this embodiment of the present application .
- Figure 11 is a schematic diagram of the DC connection between the cable and the FSS 1, wherein the cable is in direct contact with the FSS 1;
- Figure 12 is the coupling connection between the cable and the FSS 1
- Figure 13 is a schematic diagram of a segmented DC connection between the cable and FSS1, where the cable and FSS1 are in direct contact at the contact point.
- Fig. 14 is a schematic diagram of a segmented DC connection between the microstrip line and the FSS 1
- Fig. 15 is a schematic diagram of the microstrip line integrated in the FSS 1.
- the microstrip line and FSS1 can also be DC connected and segmented.
- the radiating element array located on the upper layer of the first FSS in the FSS and the radiating element array located on the lower layer of the first FSS are placed in different radomes.
- the antenna system may include one layer of FSS or multiple layers of FSS.
- the first FSS may be any layer of FSS in the FSS, which does not limit the protection scope of the embodiments of the present application.
- the above-mentioned first FSS is FSS 1.
- the radiation element array of frequency band 1 and FSS 1 are located in radome 1
- the radiation element array of frequency band 2 is located in radome 2. This is more conducive to the installation and upgrade of the antenna.
- the multi-band antenna system may include a larger number of radomes to achieve a protective effect, which is not limited in this embodiment of the present application.
- the multi-band antenna system of the embodiment of the present application may be applied to a network device for receiving signals and transmitting signals to the outside.
- the multi-band antenna system of the embodiment of the present application may be applied to a base station.
- FIG. 17 is a schematic block diagram of a base station according to an embodiment of the present application.
- the base station 1700 shown in FIG. 17 includes a multi-band antenna system 1710 and a radio frequency module 1720 , wherein the multi-band antenna system 1710 is connected to the radio frequency module 1720 .
- the radio frequency module 1720 is used to convert the baseband signal into a high-frequency current, and transmit the signal in the form of electromagnetic waves through the radiation unit of the multi-band antenna system 1710 .
- the transmitted high-frequency current (the radiation unit converts the received electromagnetic wave signal into a high-frequency current signal) is converted into a baseband signal.
- the multi-band antenna system 1710 may be the multi-band antenna system involved in FIG. 1 to FIG. 16 , and through the multi-band antenna system 1710 , the base station can perform information transmission and interaction with the terminal device.
- the disclosed systems, devices and methods may be implemented in other manners.
- the embodiments of the base station apparatus described above are only illustrative.
- the division of the modules is only a logical function division. In actual implementation, there may be other division methods.
- multiple modules or components may be combined. Either it can be integrated into another system, or some features can be omitted, or not implemented.
- the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or modules, and may be in electrical, mechanical or other forms.
- modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
- each functional module in the embodiments of the present application may be integrated into one processing unit, or each module may exist physically alone, or two or more modules may be integrated into one module.
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Abstract
Description
Claims (12)
- 一种多频段天线系统,其特征在于,包括:多个辐射单元阵列、与所述多个辐射单元阵列分别对应的馈电网络、频率选择表面FSS以及反射板;其中,所述反射板水平放置时,所述多个辐射单元阵列位于所述反射板上方,所述多个辐射单元阵列中的全部辐射单元阵列或部分辐射单元阵列层叠放置;所述FSS位于层叠放置的辐射单元阵列之间;所述层叠放置的辐射单元阵列中的至少一个辐射单元阵列对应的馈电网络与所述FSS电连接,或者,所述至少一个辐射单元阵列对应的馈电网络集成在所述FSS上。
- 根据权利要求1所述的多频段天线系统,其特征在于,所述FSS为一层,或者多层;当所述FSS为多层时,所述至少一个辐射单元阵列对应的馈电网络与所述FSS电连接包括:所述至少一个辐射单元阵列对应的馈电网络与至少一层所述FSS电连接;所述至少一个辐射单元阵列对应的馈电网络集成在所述FSS上包括:所述至少一个辐射单元阵列对应的馈电网络集成在至少一层所述FSS上。
- 根据权利要求2所述的多频段天线系统,其特征在于,当所述FSS为多层时,所述FSS中的至少两层是相邻放置的。
- 根据权利要求1至3任一项所述的多频段天线系统,其特征在于,所述多个辐射单元阵列包括第一辐射单元阵列和第二辐射单元阵列,所述第一辐射单元阵列对应的频段为第一频段,所述第二辐射单元阵列对应的频段为第二频段,所述第一频段与所述第二频段不同。
- 根据权利要求1至4任一项所述的多频段天线系统,其特征在于,所述电连接方式为下列任一种:直流连接、耦合连接、或者分段直流连接。
- 根据权利要求1至5中任一项所述的多频段天线系统,其特征在于,所述馈电网络包括电缆。
- 根据权利要求6所述的多频段天线系统,其特征在于,至少部分所述电缆和所述FSS平行。
- 根据权利要求1至5中任一项所述的多频段天线系统,其特征在于,所述馈电网络包括微带线。
- 根据权利要求1至8中任一项所述的多频段天线系统,其特征在于,所述FSS包括第一FSS,在所述多个辐射单元阵列中,位于所述第一FSS上层的辐射单元阵列和位于所述第一FSS下层的辐射单元阵列分别置于不同的天线罩内。
- 根据权利要求1至9中任一项所述的多频段天线系统,其特征在于,所述FSS包括第一FSS,位于所述第一FSS上层的辐射单元阵列包括多个分别对应至少两个不同频段的辐射单元阵列,和/或,位于所述第一FSS下层的辐射单元阵列包括多个分别对应至少两个不同频段的辐射单元阵列。
- 根据权利要求1至10中任一项所述的多频段天线系统,其特征在于,所述FSS中的至少一层为具有栅格的FSS。
- 一种基站,其特征在于,包括如权利要求1至11中任一项所述的多频段天线系统以及与所述多频段天线系统相连的射频模块。
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BR112023003238A BR112023003238A2 (pt) | 2020-08-24 | 2021-07-30 | Sistema de antena multibanda e estação base |
JP2023513234A JP2023538684A (ja) | 2020-08-24 | 2021-07-30 | マルチバンドアンテナシステムおよび基地局 |
KR1020237008924A KR20230047491A (ko) | 2020-08-24 | 2021-07-30 | 멀티-대역 안테나 시스템 및 기지국 |
EP21860046.8A EP4195413A4 (en) | 2020-08-24 | 2021-07-30 | MULTI-BAND ANTENNA SYSTEM AND BASE STATION |
US18/173,965 US20230216205A1 (en) | 2020-08-24 | 2023-02-24 | Multi-band antenna system and base station |
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CN202010856708.2 | 2020-08-24 | ||
CN202010856708.2A CN114094347B (zh) | 2020-08-24 | 2020-08-24 | 多频段天线系统和基站 |
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US18/173,965 Continuation US20230216205A1 (en) | 2020-08-24 | 2023-02-24 | Multi-band antenna system and base station |
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CN (2) | CN116845566A (zh) |
BR (1) | BR112023003238A2 (zh) |
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US11611143B2 (en) | 2020-03-24 | 2023-03-21 | Commscope Technologies Llc | Base station antenna with high performance active antenna system (AAS) integrated therein |
CN115693182A (zh) | 2020-03-24 | 2023-02-03 | 康普技术有限责任公司 | 具有成角度馈电柄的辐射元件和包括该辐射元件的基站天线 |
MX2022011871A (es) | 2020-03-24 | 2022-12-06 | Commscope Technologies Llc | Antenas de estación base con un módulo de antena activa y dispositivos y métodos relacionados. |
KR20220036179A (ko) * | 2020-09-15 | 2022-03-22 | 타이코에이엠피 주식회사 | 안테나 장치 |
US11843187B2 (en) * | 2021-04-26 | 2023-12-12 | Amazon Technologies, Inc. | Antenna module grounding for phased array antennas |
CN117525819A (zh) * | 2022-07-30 | 2024-02-06 | 华为技术有限公司 | 一种天线系统及基站 |
CN117673746A (zh) * | 2022-09-08 | 2024-03-08 | 华为技术有限公司 | 天线结构件、天线和基站 |
CN117673771A (zh) * | 2022-09-08 | 2024-03-08 | 华为技术有限公司 | 基站天线和基站 |
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- 2021-07-30 JP JP2023513234A patent/JP2023538684A/ja active Pending
- 2021-07-30 BR BR112023003238A patent/BR112023003238A2/pt unknown
- 2021-07-30 WO PCT/CN2021/109718 patent/WO2022042206A1/zh active Application Filing
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Also Published As
Publication number | Publication date |
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EP4195413A1 (en) | 2023-06-14 |
BR112023003238A2 (pt) | 2023-03-28 |
CN114094347B (zh) | 2023-07-18 |
US20230216205A1 (en) | 2023-07-06 |
KR20230047491A (ko) | 2023-04-07 |
CN116845566A (zh) | 2023-10-03 |
CN114094347A (zh) | 2022-02-25 |
JP2023538684A (ja) | 2023-09-08 |
EP4195413A4 (en) | 2024-01-17 |
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