CN113964500B - Radiating element assembly and antenna - Google Patents
Radiating element assembly and antenna Download PDFInfo
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- CN113964500B CN113964500B CN202111376341.5A CN202111376341A CN113964500B CN 113964500 B CN113964500 B CN 113964500B CN 202111376341 A CN202111376341 A CN 202111376341A CN 113964500 B CN113964500 B CN 113964500B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 39
- 230000005855 radiation Effects 0.000 claims description 29
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 230000010287 polarization Effects 0.000 claims description 13
- 230000008054 signal transmission Effects 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 abstract description 11
- 230000010363 phase shift Effects 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010295 mobile communication Methods 0.000 description 6
- 238000003491 array Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Classifications
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
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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
- 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
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Abstract
The invention provides a radiating element assembly and an antenna, wherein the radiating element assembly comprises: the half-wave oscillator, the feed balun, the transmission line, the first feed assembly and the second feed assembly; the feed balun is fixed at the bottom of the half-wave vibrator and is internally provided with a cavity, the first feed assembly penetrates through the half-wave vibrator and the cavity in the feed balun from top to bottom and then stretches out of the bottom of the feed balun, the second feed assembly is arranged at the bottom of the feed balun, and the first feed assembly is connected with the half-wave vibrator and is connected with the second feed assembly through a transmission line. The antenna comprises: a phase shifting network component and a radiating element array arranged thereon; the phase-shifting network component comprises two phase-shifting networks working in different frequency bands, and the first feed component and the second feed component of each radiating unit component are respectively and electrically connected with the output ends of the phase-shifting networks of the two frequency bands. The technical scheme provided by the invention solves the technical problems of complex structure, multiple connection points and multiple welding spots of the existing antenna network.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a radiating element assembly and an antenna.
Background
Along with the rapid development of the technology in the mobile communication field, the requirements of a communication base station on antennas are higher and higher, and the current situation that the operation of multiple modes of mobile communication and the site selection of the base station are difficult is combined, so that the multi-frequency electric modulation antenna becomes the first choice of the base station, particularly in the 5G (5 th Generation Mobile Communication Technology, fifth generation mobile communication technology) network era, one antenna is required to integrate all 4G (4 th Generation Mobile Communication Technology, fourth generation mobile communication technology) network mode antennas, a plurality of antenna arrays are arranged in the antennas, and meanwhile, iron tower companies are required to ensure that the smaller the windward area is better, the lighter the weight is better, so that the miniaturization design of the antenna section becomes a development trend.
In the miniaturized design of the antenna section, the compact layout of the antenna array among a plurality of frequency bands leads to the deterioration of the radiation performance of the antenna, thereby influencing the network coverage quality. Therefore, in order to achieve the design of miniaturization of the cross section, the antenna array is required to be not increased to achieve independent operation of a plurality of frequency bands, and therefore the multiplexing scheme of the radiation unit is widely applied.
In the existing radiation unit multiplexing scheme, the radiation units are required to be connected with a combiner to divide two ports so as to be connected with different phase-shifting networks, and the scheme realizes independent operation of different frequency bands on the premise that the antenna array is not increased, but the two groups of phase-shifting networks are matched with the superposition layout of a group of radiation unit array external-loop-combining devices in a limited array space, so that the network composition structure of the antenna is complex, and meanwhile, the connection points and welding points are numerous, thereby bringing great challenges to the mass production of the antenna.
Disclosure of Invention
The invention is completed for at least partially solving the technical problems of complex antenna structure, multiple connection points and welding spots caused by the fact that a radiation unit needs to be connected with a combiner in the prior art.
According to an aspect of the present invention, there is provided a radiation element assembly comprising: the half-wave oscillator, the feed balun, the transmission line, the first feed assembly and the second feed assembly; the first feeding assembly penetrates through the half-wave oscillator and the cavity in the feeding balun from top to bottom and then stretches out of the bottom of the feeding balun, the second feeding assembly is arranged at the bottom of the feeding balun, and the first feeding assembly is connected with the half-wave oscillator and is connected with the second feeding assembly through a transmission line.
Optionally, the first feeding component includes a first feeding sheet and a second feeding sheet, and the second feeding component includes a first feeding column and a second feeding column; the first feed plate and the second feed plate respectively penetrate through different cavities in the half-wave vibrator and the feed balun from top to bottom and then extend out of the bottom of the feed balun, the tops of the first feed plate and the second feed plate are electrically connected or coupled with the half-wave vibrator, and the lower parts extending out of the bottom of the feed balun are respectively connected with the tops of the first feed column and the second feed column through a transmission line.
Optionally, the first feeding sheet and the second feeding sheet are both in a strip structure, and a through hole is formed in the lower part of the first feeding sheet and the second feeding sheet; the first feed column and the second feed column are of nail-shaped structures, and the tip ends of the first feed column and the second feed column face downwards; one ends of the two transmission lines are respectively inserted into through holes at the lower parts of the first feeding sheet and the second feeding sheet and welded at the through holes, and the other ends of the two transmission lines are respectively welded at the tops of the first feeding column and the second feeding column.
Optionally, the first feeding sheet and the second feeding column are orthogonally polarized; the first feed post and the second feed piece are orthogonally polarized.
Optionally, the transmission line is a coaxial cable transmission line and is in a U shape; the openings of the two U-shaped transmission lines are opposite and symmetrically arranged, and the middle parts of the two U-shaped transmission lines extend outwards and protrude out of the side faces of the feed balun.
Optionally, the half-wave vibrators are specifically two groups of half-wave vibrators with orthogonal polarization, and two arms of each group of half-wave vibrators are symmetrically distributed metal pieces.
Optionally, each metal piece is of a rectangular sheet structure, and a plurality of through holes of preset shapes are formed in the metal piece.
Optionally, the radiation unit assembly further comprises: the fixing piece is arranged at the bottom of the feed balun; the first feeding assembly and the second feeding assembly penetrate through the fixing piece, and the fixing piece is used for fixing the second feeding assembly to the bottom of the feeding balun.
According to another aspect of the present invention, there is provided an antenna including: the phase shifting network component and the radiation unit array which is arranged on the phase shifting network component and consists of a plurality of the radiation unit components; the phase-shifting network component comprises two phase-shifting networks working in different frequency bands, the first feeding component of each radiating unit component is electrically connected with the output end of the phase-shifting network of one frequency band, and the second feeding component is electrically connected with the output end of the phase-shifting network of the other frequency band.
Optionally, each phase shifting network comprises a signal transmission network and means slidable relative to and for phase shifting the signal transmission network.
Optionally, the phase shifting network assembly further comprises a filter circuit disposed at an output of each phase shifting network.
Optionally, the operating frequency bands of the two phase shifting networks are selected from 1695-2170MHz/2490-2690MHz, 1427-2170MHz/2490-2690MHz, or 1427-1880MHz/2300-2690 MHz.
The technical scheme provided by the invention can comprise the following beneficial effects:
According to the radiating unit component, through the structure that the first feed component is connected with the half-wave vibrator and the second feed component respectively, the radiating unit component does not need to be connected with a joint circuit breaker, the free end of the first feed component and the free end of the second feed component can be directly connected to different phase shifting networks as two ports, and the radiating unit component is simple in overall structure. The antenna provided by the invention has the advantages that the radiating element array is formed by the plurality of radiating element assemblies and is directly fixed on the phase-shifting network assemblies working in different frequency bands, the network composition structure of the whole antenna is simple, the connecting points and the welding points are fewer, and the antenna is suitable for mass production.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and do not limit the invention.
FIG. 1 is an isometric view of a radiating element assembly provided in an embodiment of the present invention;
FIG. 2 is a rear view of a radiation element assembly provided in an embodiment of the present invention;
FIG. 3 is an exploded view of a radiating element assembly provided in an embodiment of the present invention;
fig. 4 is a front view of an antenna according to an embodiment of the present invention;
fig. 5 is a back view of an antenna according to an embodiment of the present invention;
fig. 6 is an isometric view of an antenna according to an embodiment of the present invention;
fig. 7 is an exploded view of an antenna according to an embodiment of the present invention.
In the figure: 1-a half-wave vibrator; 2-a first feed assembly; 21-a first feeding tab; 22-a second feeding tab; 3-a second feeding assembly; 31-a first feed post; 32-a second feed post; 4-transmission lines; 5-fixing pieces; a 6-radiating element assembly; 7-a phase shifting network component; 8-feeding balun; 9-upper phase shifting network; 10-a lower phase shift network; 11-a housing.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above-described drawings are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order; in addition, the embodiments of the present invention and the features in the embodiments may be arbitrarily combined with each other without collision.
As shown in fig. 1 to 3, an embodiment of the present invention provides a radiation unit assembly, which includes: the half-wave oscillator 1, the feed balun 8, the transmission line 4, the first feed assembly 2 and the second feed assembly 3; the feed balun 8 is fixed at the bottom of the half-wave vibrator 1, a cavity is formed in the feed balun 8, the first feed assembly 2 penetrates through the half-wave vibrator 1 and the cavity in the feed balun 8 from top to bottom and then stretches out of the bottom of the feed balun 8, the second feed assembly 3 is arranged at the bottom of the feed balun 8, and the first feed assembly 2 is connected with the half-wave vibrator 1 and is connected with the second feed assembly 3 through the transmission line 4.
In this embodiment, through the structure that the first feeding component is connected with the half-wave oscillator and the second feeding component respectively, the radiating unit component does not need to be connected with a joint circuit, and the free end of the first feeding component and the free end of the second feeding component can be directly connected to different phase shifting networks as two ports.
In a specific embodiment, the half-wave vibrator 1 is specifically two groups of half-wave vibrators with orthogonal polarizations, and two arms of each group of half-wave vibrators are symmetrically distributed metal pieces.
In the embodiment, the two groups of half-wave vibrators are specifically two groups of half-wave vibrators which are mutually orthogonal to form + -45 DEG dual-polarized radiation characteristics, wherein dual polarization is positive 45 DEG polarization and negative 45 DEG polarization respectively; each group of half-wave vibrators is provided with two radiation arms, and then the two groups of half-wave vibrators are provided with four radiation arms in total, and the four radiation arms are distributed in a grid shape, so that the arrangement mode can effectively remove the coupling between the dual polarization; the two arms of each half-wave oscillator are equal in length, and the total length of each half-wave oscillator is one half of the wavelength of the central frequency point (namely, each arm is one quarter of the wavelength), so that half-wave dipoles are formed.
Preferably, the half-wave vibrator 1 is arranged coaxially with the feed balun 8. Further, the half-wave resonator 1 and the feed balun 8 may be made of the same material, for example, an aluminum alloy or a non-magnetic metal material, and are vertically arranged and formed as an integral structure.
In the embodiment, the half-wave vibrator and the feed balun are integrally formed, so that the manufacturing is convenient.
In one specific embodiment, each metal piece is of a rectangular sheet structure, and a plurality of through holes of preset shapes are formed in the metal piece.
In this embodiment, each metal piece is a rectangular metal sheet (preferably a square metal sheet) with a certain shape hollowed out thereon, and each hollowed-out portion is formed as a through hole.
As shown in fig. 1 and 2, three through holes, specifically a square hole and two right-angled triangular through holes, may be formed in each rectangular metal sheet. The right angles of the two right-angle triangular through holes are respectively positioned at two opposite angles of the rectangular metal sheet, the two right-angle triangular through holes are equal in size and are symmetrically arranged, a strip-shaped structure is formed between the two right-angle triangular through holes, the square holes are clamped between the two right-angle triangular through holes and are arranged on the strip-shaped structure, and the strip-shaped structures of the four rectangular metal sheets are distributed in a cross shape; in addition, the square hole has a smaller area, and the right-angled triangular through hole has a larger area, specifically, the right-angled triangular through hole has an area several times (for example, 6 to 12 times) the area of the square hole. The hypotenuse of the right triangle through hole can be a smooth straight edge or a non-straight edge formed by multiple sections of lines, and the included angle between the adjacent sections is an obtuse angle.
In one embodiment, the first feeding component 2 includes a first feeding tab 21 and a second feeding tab 22, and the second feeding component 3 includes a first feeding post 31 and a second feeding post 32; the first feeding plate 21 and the second feeding plate 22 respectively pass through different cavities inside the half-wave vibrator 1 and the feeding balun 8 from top to bottom and then extend out of the bottom of the feeding balun 8, the top parts of the first feeding plate 21 and the second feeding plate 22 are electrically connected or coupled with the half-wave vibrator 1, and the lower parts extending out of the bottom of the feeding balun 8 are respectively connected with the top parts of the first feeding column 31 and the second feeding column 32 through a transmission line 4.
It can be seen that the top of the first feeding plate 21 and the second feeding plate 22 are feeding parts, the lower part is a welding part, the feeding parts are connected with the half-wave vibrators, and the welding parts pass through the internal cavity-shaped structure of the feeding balun and pass out from the bottom of the feeding balun to the back of the radiating unit, and then are respectively connected with the first feeding column 31 and the second feeding column 32 through the two transmission lines 4.
In this embodiment, after the first feeding plate 21 and the second feeding plate 22 extend downward from directly above the half-wave vibrator 1, one end of each feeding plate is electrically connected or coupled with the half-wave vibrator 1, and the other ends of each feeding plate respectively pass through different cavities inside the feeding balun 8 to realize insulation, and then extend out from the bottom of the feeding balun 8 for signal transmission; one ends of the two transmission lines 4 are respectively connected with the lower parts of the first feeding sheet 21 and the second feeding sheet 22 to form a one-to-two power divider, and the other ends of the two transmission lines 4 (i.e., the other ends of the power dividers) are respectively connected with the tops of the first feeding column 31 and the second feeding column 32. It can be seen that, in this embodiment, the ports are separated by a specific connection manner between the two transmission lines and the first feeding component and the second feeding component, where the bottom end (free end) of the first feeding component is used as one port, and the bottom end (free end) of the second feeding component is used as another port, and these two ports can be directly connected to different phase shifting networks, so as to implement multiplexing of the radiating elements.
In a specific embodiment, the first feeding tab 21 and the second feeding tab 22 are both in a strip structure, and a through hole is formed at the lower part of the first feeding tab and the second feeding tab; the first feeding post 31 and the second feeding post 32 are both in nail-shaped structures, and the tips of the first feeding post and the second feeding post are downward; one ends of the two transmission lines 4 are respectively inserted into through holes at the lower parts of the first feeding sheet 21 and the second feeding sheet 22 and welded at the through holes (here, welding spots), and the other ends are respectively welded at the tops of the first feeding post 31 and the second feeding post 32 (here, welding spots). Of course, the length of the feeding post is smaller than the length of the feeding plate, for example, the length of the feeding plate is 3-5 times of the length of the feeding post.
In this embodiment, the first/second feeding sheet of the strip structure and the first/second feeding column of the spike structure are connected by a transmission line to realize port separation, so that the structure is simple, the welding spots are fewer, and the device is suitable for mass production.
Further, the bottom ends of the first feeding sheet 21 and the second feeding sheet 22 are respectively provided with a strip-shaped protrusion extending downwards so as to be inserted into the corresponding phase shifting network and connected with the output end of the phase shifting network.
In one embodiment, the first feeding tab 21 and the second feeding post 32 are orthogonally arranged in polarization; the first feed post 22 and the second feed tab 31 are orthogonally polarized.
Further, the first feeding tab 21, the second feeding tab 22, the first feeding post 31 and the second feeding post 32 are spaced apart from each other to secure a distance between polarizations.
In this embodiment, the phases of the first feeding plate 21 and the second feeding post 32 are 180 degrees, and the phases of the first feeding post 22 and the second feeding plate 31 are 180 degrees, so that differential feeding can be performed on the half-wave vibrator, and balanced currents can be realized without additional balance structures.
In one embodiment, the transmission line 4 is embodied as a coaxial cable transmission line and is U-shaped; the openings of the two U-shaped transmission lines are opposite and symmetrically arranged, and the middle parts of the two U-shaped transmission lines extend outwards and protrude out of the side face of the feed balun 8.
In this embodiment, two ends of the U-shaped coaxial cable transmission line extend into the bottom of the feeding balun 8 and are respectively connected with the lower portion of the first feeding sheet 21 (the second feeding sheet 22) and the top portion of the first feeding column 31 (the second feeding column 32), while the middle portion of the U-shaped coaxial cable transmission line extends out from the bottom of the feeding balun 8, so that most of the coaxial cable transmission line protrudes out of the side surface of the feeding balun 8, and such a structure is easy to weld and the welding point is clear.
As shown in fig. 1 and 3, the radiation unit assembly further includes: the fixing piece 5 is arranged at the bottom of the feed balun 8; the first feeding component 2 and the second feeding component 3 both pass through the fixing piece 5, and the fixing piece 5 fixes the second feeding component 3 at the bottom of the feeding balun 8.
In this embodiment, the fixing piece 5 supports the second feeding component 3, so as to fix the transmission line 4 and the second feeding component 3, and avoid displacement during practical application.
According to the radiating unit component provided by the embodiment of the invention, one ends of the first feeding sheet and the second feeding sheet are connected with the half-wave vibrator, the other ends of the first feeding sheet and the second feeding sheet penetrate through different cavities in the feeding balun from top to bottom and then extend out of the bottom of the feeding balun, one ends of the two transmission lines are respectively connected with the lower parts of the first feeding sheet and the second feeding sheet extending out of the bottom of the feeding balun to form a split power divider, the other ends of the two transmission lines are respectively connected with the tops of the first feeding column and the second feeding column, the bottoms of the first feeding sheet and the second feeding sheet serve as one port, the bottoms of the first feeding column and the second feeding column serve as the other port, and the structures are mutually matched to form the multiplexing radiating unit component integrating electromagnetic wave radiation and the dual-polarization function.
As shown in fig. 4 to 7, an embodiment of the present invention further provides an antenna, which includes: a phase shift network assembly 7 and a radiating element array formed by a plurality of radiating element assemblies 6 described in the previous embodiments and arranged thereon; the phase shift network assembly 7 comprises two phase shift networks working in different frequency bands, the first feed assembly of each radiating element assembly 6 is electrically connected with the phase shift network output end of one frequency band, and the second feed assembly is electrically connected with the phase shift network output end of the other frequency band.
The radiation unit array may be a linear array or a rectangular array. The radiation unit assembly is specifically the multiplexing dual-polarized radiation unit assembly.
In this embodiment, the plurality of radiating element assemblies form a radiating element array and are directly fixed on the phase-shifting network assemblies working in different frequency bands, and the network composition structure of the whole antenna is simple, the connection points and the welding points are fewer, so that the antenna is suitable for mass production.
Further, as shown in fig. 6 and 7, the two phase shift networks are arranged in a stacked manner, the upper phase shift network 9 and the lower phase shift network 10 operate in different frequency bands, and the left and right parts of each phase shift network respectively correspond to different polarizations (positive 45 ° polarization and negative 45 ° polarization) of the antenna.
The first feed component and the second feed component of each radiation unit component are respectively and electrically connected with the output ends of the upper phase shifting network and the lower phase shifting network to realize multiplexing of the same radiation unit component, a half-wave vibrator is not needed to be independently connected with a joint circuit, and meanwhile, the cable structure for connecting the phase shifters with the radiation units can be reduced to the greatest extent, so that the succinct design of the multiplexing antenna of the combining way is realized.
Specifically, one end of the first feed component of each radiating element component, which penetrates through the back surface of the radiating element, penetrates through the upper phase shifting network 9 and then is inserted into the lower phase shifting network 10 to be electrically connected with the output end thereof; one end of the second feeding component of each radiating element component penetrating out of the back surface of the radiating element is inserted into the upper phase shifting network 9 and is electrically connected with the output end of the upper phase shifting network.
In this embodiment, the dual-polarization multiplexing radiating element assembly is combined with the phase shifting network which is stacked up and down and works in different frequency bands to act on two feed systems to form two independently working antennas, so that the number of antenna arrays can be reduced, the layout of the antenna radiating arrays is simplified, the assembly process is reduced, and the weight of the antenna is reduced.
In one embodiment, the phase shifting network assembly further comprises a housing 11; the interior of the shell 11 is divided into an upper layer inner cavity and a lower layer inner cavity, the upper layer phase shifting network 9 is arranged in the upper layer inner cavity, the lower layer phase shifting network 10 is arranged in the lower layer inner cavity, and the multiplexing dual-polarized radiation unit assembly 6 is fastened on the upper surface of the shell 11.
In one embodiment, each phase shifting network includes a signal transmission network and a component slidable relative to the signal transmission network and used for phase shifting the signal transmission network.
In one embodiment, the phase shifting network assembly further comprises a filter circuit disposed at an output of each phase shifting network.
In the embodiment, the filter circuit is arranged in the phase shifting network which is vertically stacked, and the combiner of the multiplexing radiation unit is omitted, so that the network composition structure of the antenna is simplified, and the assembly process and complexity of the whole antenna are reduced.
In one embodiment, the operating frequency bands of the two phase shifting networks are selected from 1695-2170MHz/2490-2690MHz, 1427-2170MHz/2490-2690MHz, or 1427-1880MHz/2300-2690 MHz.
In this embodiment, three choices are provided for the working frequency bands of the two phase-shifting networks, namely 1695-2170MHz/2490-2690MHz, 1427-2170MHz/2490-2690MHz and 1427-1880MHz/2300-2690MHz, and one of the frequency band ranges can be selected by a person skilled in the art according to actual requirements, and the working frequency bands of the two phase-shifting networks are set in the selected frequency band ranges.
Aiming at the requirements of miniaturization and high performance of the current broadband multi-frequency antenna, the antenna provided by the embodiment of the invention directly sets the multiplexing dual-polarized radiation unit arrays on the phase shift networks which are stacked up and down and work in different frequency bands to form two independently working antennas, the working frequency bands can be selected in different frequency band ranges according to the requirements, and the production and assembly simplicity, easy operation and high efficiency of the antenna can be realized; in addition, the multiplexing dual-polarized radiating element array integration and phase-shifting network feed connection structure ensures that a phase-matching cable is not required to be welded between the phase-shifting network and the radiating elements, so that an electroplating link can be omitted, the processing procedure and difficulty of the phase-shifting network are reduced, and the cost can be reduced.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; 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 or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (12)
1. A radiating element assembly, comprising: the half-wave oscillator, the feed balun, the transmission line, the first feed assembly and the second feed assembly; the first power feeding assembly penetrates through the half-wave oscillator and the cavity in the power feeding balun from top to bottom and then stretches out of the bottom of the power feeding balun, the second power feeding assembly is arranged at the bottom of the power feeding balun, and the first power feeding assembly is connected with the half-wave oscillator and also connected with the second power feeding assembly through a transmission line; the first feed component is electrically connected with the phase-shifting network output end of one frequency band in the phase-shifting network component, the second feed component is electrically connected with the phase-shifting network output end of the other frequency band in the phase-shifting network component, and the phase-shifting network component comprises two phase-shifting networks working in different frequency bands.
2. The radiating element assembly of claim 1, wherein the first feed assembly comprises a first feed tab and a second feed tab, the second feed assembly comprising a first feed post and a second feed post; the first feed plate and the second feed plate respectively penetrate through different cavities in the half-wave vibrator and the feed balun from top to bottom and then extend out of the bottom of the feed balun, the tops of the first feed plate and the second feed plate are electrically connected or coupled with the half-wave vibrator, and the lower parts extending out of the bottom of the feed balun are respectively connected with the tops of the first feed column and the second feed column through a transmission line.
3. The radiation element assembly according to claim 2, wherein the first feeding tab and the second feeding tab are each of a long strip structure, and a through hole is provided at a lower portion thereof; the first feed column and the second feed column are of nail-shaped structures, and the tip ends of the first feed column and the second feed column face downwards; one ends of the two transmission lines are respectively inserted into through holes at the lower parts of the first feeding sheet and the second feeding sheet and welded at the through holes, and the other ends of the two transmission lines are respectively welded at the tops of the first feeding column and the second feeding column.
4. A radiating element assembly according to claim 3, wherein the first feed tab and the second feed post are orthogonally arranged in polarization; the first feed post and the second feed piece are orthogonally polarized.
5. A radiating element assembly according to claim 3, wherein the transmission line is embodied as a coaxial cable transmission line and is U-shaped; the openings of the two U-shaped transmission lines are opposite and symmetrically arranged, and the middle parts of the two U-shaped transmission lines extend outwards and protrude out of the side faces of the feed balun.
6. The radiation element assembly defined in any one of claims 1-5, wherein the half-wave vibrators are in particular two sets of half-wave vibrators with orthogonal polarizations, the two arms of each set of half-wave vibrators being symmetrically distributed metal pieces.
7. The radiating element assembly of claim 6, wherein each metal piece is a rectangular sheet-like structure having a plurality of through holes of a predetermined shape formed therein.
8. The radiating element assembly of any of claims 1-5, further comprising: the fixing piece is arranged at the bottom of the feed balun; the first feeding assembly and the second feeding assembly penetrate through the fixing piece, and the fixing piece is used for fixing the second feeding assembly to the bottom of the feeding balun.
9. An antenna, comprising: a phase shifting network assembly and a radiating element array provided thereon, comprising a plurality of radiating element assemblies as claimed in any one of claims 1 to 8; the phase-shifting network component comprises two phase-shifting networks working in different frequency bands, the first feeding component of each radiating unit component is electrically connected with the output end of the phase-shifting network of one frequency band, and the second feeding component is electrically connected with the output end of the phase-shifting network of the other frequency band.
10. The antenna of claim 9, wherein each phase shifting network comprises a signal transmission network and a component slidable relative to the signal transmission network and used for phase shifting the signal transmission network.
11. The antenna of claim 10, wherein the phase shifting network components further comprise a filter circuit disposed at an output of each phase shifting network.
12. The antenna of claim 9, wherein the operating frequency bands of the two phase shifting networks are selected from 1695-2170MHz/2490-2690MHz, 1427-2170MHz/2490-2690MHz, or 1427-1880MHz/2300-2690 MHz.
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| CN113871853A (en) * | 2021-09-06 | 2021-12-31 | 京信通信技术(广州)有限公司 | Antenna and radiation unit |
| CN216120739U (en) * | 2021-11-19 | 2022-03-22 | 中国联合网络通信集团有限公司 | Radiation unit assembly and antenna |
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| US6211840B1 (en) * | 1998-10-16 | 2001-04-03 | Ems Technologies Canada, Ltd. | Crossed-drooping bent dipole antenna |
| CN206282963U (en) * | 2016-12-23 | 2017-06-27 | 武汉虹信通信技术有限责任公司 | One kind miniaturization base station antenna radiation unit |
| CN107230827A (en) * | 2017-05-31 | 2017-10-03 | 深圳三星通信技术研究有限公司 | A kind of half-wave dipole, radiating element and antenna |
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| CN113871853A (en) * | 2021-09-06 | 2021-12-31 | 京信通信技术(广州)有限公司 | Antenna and radiation unit |
| CN216120739U (en) * | 2021-11-19 | 2022-03-22 | 中国联合网络通信集团有限公司 | Radiation unit assembly and antenna |
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