CN115663460A - Common-caliber radiating element and antenna - Google Patents
Common-caliber radiating element and antenna Download PDFInfo
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- CN115663460A CN115663460A CN202211305985.XA CN202211305985A CN115663460A CN 115663460 A CN115663460 A CN 115663460A CN 202211305985 A CN202211305985 A CN 202211305985A CN 115663460 A CN115663460 A CN 115663460A
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- 230000010287 polarization Effects 0.000 claims abstract description 34
- 230000008878 coupling Effects 0.000 claims abstract description 16
- 238000010168 coupling process Methods 0.000 claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims description 85
- 239000004020 conductor Substances 0.000 claims description 11
- 238000004512 die casting Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 abstract description 13
- 238000004891 communication Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 230000004927 fusion Effects 0.000 description 5
- 238000009713 electroplating Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- H01Q5/30—Arrangements for providing operation on different wavebands
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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
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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
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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
- H01Q15/24—Polarising devices; Polarisation filters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
- H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
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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
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
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- Engineering & Computer Science (AREA)
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Abstract
The invention relates to the technical field of communication antennas, and provides a common-caliber radiation unit and an antenna, wherein the common-caliber radiation unit comprises a base, a first frequency band unit and a second frequency band unit, the first frequency band unit comprises a low-frequency radiator and a first feed group, the low-frequency radiator is supported on the base and comprises at least one polarization, the first feed group comprises at least one first feed element, and the first feed element is used for coupling feed to the low-frequency radiator; the second frequency band unit is nested in the first frequency band unit and comprises a high-frequency radiator and a second feed group, the high-frequency radiator is supported and arranged on the base and comprises at least one polarization, and the second feed group comprises at least one second feed piece which is used for coupling and feeding the high-frequency radiator. The common-caliber radiating unit realizes the miniaturization of the antenna, realizes the removal of the terminal and the oscillator wire on the basis of the traditional radiating unit, improves the intermodulation stability, the reliability and the low cost.
Description
Technical Field
The invention relates to the technical field of communication antennas, in particular to a common-caliber radiating element and an antenna.
Background
With the development of 5G communication technology, 4G/5G fusion antennas become mainstream antennas. However, the requirement of multi-frequency fusion on the antenna is increased, the miniaturization of the size of the antenna is realized, and the fusion between multi-frequency bands and multi-systems is realized, so that the index of each frequency band is ensured not to be deteriorated; meanwhile, the cost and the weight are also important assessment indexes of the antenna, so that the miniaturization, the high performance and the low cost of the antenna become the development targets of designers.
The traditional high-frequency and low-frequency common-caliber radiating unit adopts a scheme of adding a terminal to an oscillator line, so that the intermodulation stability is poor, the reliability is low, the radiating body of the radiating unit needs to be electroplated, and the production cost is high.
Disclosure of Invention
The invention provides a common-caliber radiation unit and an antenna, which are used for solving the defects of poor intermodulation stability, low reliability and high cost of a multi-frequency fusion antenna in the prior art.
In a first aspect, the present invention provides a common aperture radiating element, comprising: the base is provided with a first through hole and a second through hole;
the first frequency band unit comprises a low-frequency radiator and a first feed group, the low-frequency radiator is supported and arranged on the base, the low-frequency radiator comprises at least one polarization formed by a symmetric dipole binary array, the first feed group comprises at least one first feed piece, one first feed piece is arranged corresponding to the low-frequency binary array of one polarization, the first feed piece comprises a first connecting section and a first feed section, the first connecting section is arranged in the first through hole in a penetrating mode and used for accessing an external signal, and the first feed section is coupled and connected with the corresponding low-frequency binary array and used for coupling and feeding an input signal of the low-frequency radiator;
the second frequency band unit, the nestification set up in the first frequency band unit, the second frequency band unit includes high frequency radiator and second feed group, high frequency radiator support set up in the base, high frequency radiator includes at least one polarization that constitutes by symmetrical dipole binary array, second feed group is including at least one second feed spare, one the second feed spare sets up corresponding to the high frequency binary array of a polarization, the second feed spare includes second linkage segment and second feed section, the second linkage segment is worn to locate the second through-hole for insert external signal, the second feed section with correspond high frequency binary array coupling connection, be used for right high frequency radiator's input signal coupling feed.
According to the common-caliber radiating element provided by the invention, the low-frequency radiator comprises two polarizations which are orthogonally arranged, the first feed group comprises two first feed pieces, and the two first feed pieces are arranged in one-to-one correspondence with the two polarizations of the low-frequency radiator.
According to the common-caliber radiating unit provided by the invention, the low-frequency radiator and the base are arranged in a split manner; the low-frequency radiator is coupled with the base, or the low-frequency radiator is rigidly connected with the base through a metal fastener.
According to the common-caliber radiation unit provided by the invention, the high-frequency radiator and the base are arranged in a split manner; the high-frequency radiator is coupled with the base, or the high-frequency radiator is rigidly connected with the base through a metal fastener.
According to the common-caliber radiating unit provided by the invention, the bottom of the base is provided with a first metal support and a second metal support, the first through hole penetrates through the first metal support, the second through hole penetrates through the second metal support, and the first metal support and the second metal support are both used for connecting an external conductor of an external unit; a first metal via hole and a second metal via hole are formed in the bottom of the low-frequency radiator and are arranged correspondingly, and the first connecting section penetrates through the first metal via hole and the first through hole to be electrically connected with an inner conductor of an external unit; the second metal via hole and the second through hole are correspondingly arranged, and the second connecting section penetrates through the second metal via hole and the second through hole to be electrically connected with an inner conductor of the external unit.
According to the common-caliber radiating unit provided by the invention, the first feed part is one of a sheet metal part, a die casting part or a printed circuit part; and/or the second feeding part is one of a sheet metal part, a die casting part or a printed circuit part.
According to the common-caliber radiating unit provided by the invention, the first feed part is an integrally-formed part; and/or the second feeding piece is an integrally-formed piece.
According to the common-caliber radiating unit provided by the invention, the common-caliber radiating unit further comprises a guide sheet, the guide sheet is arranged on one side of the high-frequency radiator, which is far away from the base, and the guide sheet and the high-frequency radiator are arranged at intervals.
In a second aspect, the present invention also provides an antenna comprising a common aperture radiating element as described in any one of the above.
According to the antenna provided by the invention, the antenna comprises a plurality of common-caliber radiating units, and the plurality of common-caliber radiating units are combined by same-frequency units or at least partial different-frequency units.
According to the common-caliber radiation unit and the antenna, the first frequency band unit, the second frequency band unit and the common base are arranged in a nested manner, so that the structure is compact, the radiation unit is miniaturized, and the windward area of the antenna can be further reduced; the coupling feed is adopted to realize the signal input of the low-frequency radiator and the high-frequency radiator, and the terminal and the oscillator removing line are realized on the basis of the traditional radiating unit, so that the hole sites of the reflecting plate can be reduced, the intermodulation stability is improved, the intermodulation hidden danger caused by welding operation is reduced, the reliability is improved, and the low cost is realized; the low-frequency radiator and the high-frequency radiator are electrically connected with other parts without electroplating, so that the electroplating cost is saved, and the cost is further reduced; meanwhile, the beam deformation of the common-caliber radiating unit is improved, and the performance is improved, so that the integration of multiple frequency bands and multiple systems is realized on the basis of realizing the miniaturization of the antenna, the indexes of each frequency band are ensured not to be deteriorated, and the defects of poor intermodulation stability, low reliability and high cost of the multi-frequency integrated antenna in the prior art are overcome.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is an exploded schematic view of a common aperture radiation unit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first frequency band unit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first feeding set according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second frequency band unit according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second feeding set according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a base according to an embodiment of the present invention;
fig. 7 is a schematic assembly diagram of a first feeding set and a base according to an embodiment of the present invention;
FIG. 8 is a schematic view of an assembly of a second feeding set and a base according to an embodiment of the present invention;
fig. 9 is a graph of a standing-wave ratio of a first frequency band unit according to an embodiment of the present invention;
fig. 10 is a standing wave ratio graph of the second frequency band unit according to the embodiment of the present invention.
Reference numerals are as follows:
1: a base; 11: a first through hole; 12: a second through hole; 13: a second connection hole; 14: a first metal support; 15: a second metal support; 16: welding a notch;
2: a first frequency band unit; 21: a low frequency radiator; 211: a low frequency dipole; 212: a first connection hole; 213: a first metal via; 214: a second metal via; 22: a first feed group; 220: a first feeding member; 221: a first connection section; 222: a first feed section; 223: an avoidance part;
3: a second frequency band unit; 31: a high-frequency radiator; 32: a second feeding set; 320: a second feed; 321: a second connection section; 322: a second feed section; 323: encapsulating; 33: a guide sheet;
500: an external connection unit; 501: an outer conductor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It is to be understood that the terms "vertical," "horizontal," "plus 45 or minus 45 orientation," "up," "center," "down," and the like are used for descriptive purposes only and are not intended to indicate or imply that the device or component so referred to must be oriented, constructed or operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The co-aperture radiating element and antenna of the present invention are described below in conjunction with fig. 1-8.
As shown in fig. 1 to 8, the common-caliber radiating unit provided by the present invention includes a base 1, a first frequency band unit 2 and a second frequency band unit 3, wherein the base 1 is provided with a first through hole 11 and a second through hole 12; the first frequency band unit 2 includes a low-frequency radiator 21 and a first feed group 22, the low-frequency radiator 21 is supported and disposed on the base 1, the low-frequency radiator 21 includes at least one polarization formed by a symmetric dipole binary array, the first feed group 22 includes at least one first feed element 220, one first feed element 220 is disposed corresponding to the low-frequency binary array of one polarization, the first feed element 220 includes a first connection section 221 and a first feed section 222, the first connection section 221 is disposed through the first through hole 11 for accessing an external signal, the first feed section 222 is coupled and connected with the corresponding low-frequency binary array for coupling and feeding an input signal of one polarization of the low-frequency radiator 21; the second frequency band unit 3 is nested in the first frequency band unit 2, the second frequency band unit 3 includes a high-frequency radiator 31 and a second feeding set 32, the high-frequency radiator 31 is supported and disposed on the base 1, the high-frequency radiator 31 includes at least one polarization formed by a symmetric dipole binary array, the second feeding set 32 includes at least one second feeding element 320, one second feeding element 320 is disposed corresponding to a polarized high-frequency binary array, the second feeding element 320 includes a second connection segment 321 and a second feeding segment 322, the second connection segment 321 is disposed through the second through hole 12 for accessing an external signal, and the second feeding segment 322 is coupled with the corresponding high-frequency binary array for coupling and feeding a polarized input signal of the high-frequency radiator 31.
Wherein the frequency of the low-frequency radiator 21 is lower than the frequency of the high-frequency radiator 31, i.e. the radiation frequency of the first band element 2 is lower than the radiation frequency of the second band element 3.
In this embodiment, the second band unit 3 is nested in the first band unit 2 to form a dual-band common-aperture radiation unit, thereby implementing a dual-band characteristic. The low-frequency radiator 21 and the high-frequency radiator 31 are supported and arranged on the base 1, the base 1 is a shared piece of the first frequency band unit 2 and the second frequency band unit 3, and the base 1 supports and electrically connects the low-frequency radiator 21 and the high-frequency radiator 31 at the same time; the base 1 is also used for connection with the external unit 500. The first connection segment 221 of the first feeding element 220 is a connection portion, the first feeding segment 222 is a feeding portion, the first connection segment 221 is disposed through the first through hole 11 of the base 1, so that the first connection segment 221 can pass through the base 1 to be connected with the external connection unit 500, the first feeding segment 222 is disposed in a manner of coupling with a polarized low-frequency binary array of the low-frequency radiator 21, an input signal is coupled and fed to a polarized input signal of the low-frequency radiator 21 through the external connection unit 500 via the first feeding element 220, and signal input to the low-frequency radiator 21 is achieved. The second connection segment 321 of the second feeding element 320 is a connection portion, the second feeding segment 322 is a feeding portion, the second connection segment 321 is disposed through the second through hole 12 of the base 1, so that the second connection segment 321 can pass through the base 1 and be connected to the external connection unit 500, the second feeding segment 322 is disposed corresponding to a polarized high-frequency binary array coupling of the high-frequency radiator 31, and an input signal is coupled and fed to a polarized input signal of the high-frequency radiator 31 through the external connection unit 500 via the second feeding element 320, thereby implementing signal input to the high-frequency radiator 31.
According to the common-caliber radiating unit, the first frequency band unit 2, the second frequency band unit 3 and the common base 1 are arranged in a nested manner, so that the structure is compact, the radiating unit is miniaturized, and the windward area of an antenna can be further reduced; the coupling feed is adopted to realize the signal input of the low-frequency radiator 21 and the high-frequency radiator 31, and the terminal and the oscillator removing line are realized on the basis of the traditional radiating unit, so that the hole sites of the reflecting plate can be reduced, the intermodulation stability is improved, the intermodulation hidden danger caused by welding operation is reduced, the reliability is improved, and the low cost is realized; the low-frequency radiator 21 and the high-frequency radiator 31 are not electrically connected with other parts, so that electroplating is not needed, the electroplating cost is saved, and the cost is further reduced; meanwhile, the beam deformation of the common-aperture radiating unit is improved, and the performance is improved, so that the integration of multiple frequency bands and multiple systems is realized on the basis of realizing the miniaturization of the antenna, the indexes of each frequency band are ensured not to be deteriorated, and the defects of poor intermodulation stability, low reliability and high cost of the multi-frequency integrated antenna in the prior art are overcome.
Specifically, as shown in fig. 2, the low-frequency binary array of each polarization of the low-frequency radiator 21 includes two low-frequency dipoles 211, and the two low-frequency dipoles 211 are symmetrically arranged; two low-frequency dipoles 211 corresponding to each polarization, the first feed 220 having two first feed sections 222, the two first feed sections 222 being coupled to the two low-frequency dipoles 211 of the same polarization, respectively, to feed an external signal to the radiating arms of the two low-frequency dipoles 211; a portion of the first feed section 222 is at the bottom of the low frequency radiator 21 and another portion is bent upwards to match the low frequency dipole 211 coupling connection. One end of the first connection section 221 is connected to the two first feeding sections 222, and the other end of the first connection section is inserted into the first through hole 11 of the base 1 for accessing an external signal.
In one embodiment, as shown in fig. 2 and 3, the low frequency radiator 21 includes two polarizations arranged orthogonally, the first feed group 22 includes two first feeds 220, and the two first feeds 220 are provided in one-to-one correspondence with the two polarizations of the low frequency radiator 21.
In the present embodiment, the low-frequency radiator 21 consists of two symmetric dipole binary arrays in two polarizations, which are arranged orthogonally, for example placed at ± 45 °; the feed structure is provided for each polarized symmetric dipole binary array, i.e. the first feed group 22 comprises two polarized first feeds 220, enabling signal input to both polarizations of the low frequency radiator 21.
In one embodiment, as shown in fig. 2, the low-frequency dipole 211 is a half-wave bowl-shaped radiation oscillator, and the low-frequency radiator 21 is placed in ± 45 ° of a binary array consisting of two half-wave bowl-shaped radiation oscillators, so that an installation space is defined inside the low-frequency radiator 21; the second band unit 3 is nested in the installation space of the low frequency radiator 21.
Specifically, as shown in fig. 3, since the two polarizations of the low frequency radiator 21 are orthogonally arranged, there is a portion where the first feed segments 222 of the two first feeds 220 corresponding to the two polarizations overlap at the bottom of the low frequency radiator 21. The first feeding section 222 of one of the first feeding members 220 is provided with a bypass portion 223 at the overlapped portion, and the bypass portion 223 is bent away from the bottom of the low frequency radiator 21, so as to avoid cross contact with the first feeding section 222 of the other first feeding member 220, thereby ensuring that the two first feeding members 220 of the first feeding set 22 feed independently of each other.
In one embodiment, as shown in fig. 4 and 5, the high frequency radiator 31 is composed of two symmetric dipole binary arrays into two polarizations, the two polarizations being arranged orthogonally; correspondingly, the second feeding set 32 includes a feeding structure with two polarizations, that is, the second feeding set 32 includes two second feeding elements 320, and the two second feeding elements 320 are disposed in one-to-one correspondence with the two polarizations of the high-frequency radiator 31, so as to implement signal input to the two polarizations of the high-frequency radiator 31. Wherein the second connection section 321 of the second feeding element 320 of each polarization is a feeding matching portion, and the second feeding section 322 has an open branch.
Specifically, as shown in fig. 4, the second feeding element 320 further includes an encapsulation 323, the encapsulation 323 wraps the outside of the second connection segment 321, and when the second connection segment 321 is inserted into the second through hole 12, the encapsulation 323 is located between the second connection segment 321 and the inner wall of the second through hole 12, so as to avoid the second feeding element 320 contacting the base 1, protect the second feeding element 320, and avoid the second feeding element 320 contacting the high-frequency radiator 31, thereby ensuring the coupling feeding effect and improving the intermodulation stability.
In one embodiment, the high-frequency radiator 31 is an integrally formed structure, and has a simple structure and good consistency.
In one embodiment, as shown in fig. 1 and 4, the second band unit 3 further comprises a guiding sheet 33, the guiding sheet 33 is disposed on a side of the high-frequency radiator 31 facing away from the base 1, and the guiding sheet 33 is spaced apart from the high-frequency radiator 31.
In this embodiment, by providing the guiding sheet 33, the guiding sheet 33 is located above the high-frequency radiator 31, so that the beam focusing effect of the antenna can be achieved, the indexes such as horizontal beam width and gain can be improved, the radiation performance of the second band unit 3 can be improved, and the reliability can be improved.
Specifically, as shown in fig. 1, the low frequency radiator 21 is provided separately from the chassis 1. Through low frequency radiator 21 and base 1 adoption components of a whole that can function independently structure, low frequency radiator 21 need not to electroplate, reduce cost produces more environmental protection moreover.
In one embodiment, the low frequency radiator 21 is coupled to the base 1 to avoid contact therebetween, thereby improving intermodulation stability.
In another embodiment, the low frequency radiator 21 is rigidly connected to the chassis base 1 by metal fasteners. For example, the metal fasteners are metal screws. The rigid connection is adopted, so that the stability is firmer and more stable, and the reliability is guaranteed.
Specifically, as shown in fig. 1, fig. 2 and fig. 6, a first connection hole 212 is opened at the bottom of the low-frequency radiator 21, a second connection hole 13 is correspondingly provided on the base 1, and a metal fastener is inserted through the first connection hole 212 and the second connection hole 13, so as to rigidly and fixedly connect the low-frequency radiator 21 and the base 1.
Wherein, first connecting hole 212 is the metal hole, and the quantity of first connecting hole 212 and second connecting hole 13 can be a plurality ofly, for example three, and three first connecting hole 212 is not collinear, and low frequency radiator 21 and base 1 are connected more firmly, and are reliable and stable.
Specifically, as shown in fig. 1, the high-frequency radiator 31 is provided separately from the base 1. Through high frequency radiator 31 and base 1 adoption components of a whole that can function independently structure, high frequency radiator 31 need not to electroplate, reduce cost produces more environmental protection moreover.
In one embodiment, the high frequency radiator 31 is coupled to the base 1 to avoid contact therebetween, thereby improving intermodulation stability.
In another embodiment, the high-frequency radiator 31 is rigidly connected to the chassis 1 by means of metal fasteners. For example, the metal fastener is a metal screw. The rigid connection is adopted, so that the stability is firmer and more stable, and the reliability is guaranteed.
Specifically, as shown in fig. 1, fig. 2, fig. 6, fig. 7 and fig. 8, a first metal support 14 and a second metal support 15 are disposed at the bottom of the base 1, a first through hole 11 is disposed through the first metal support 14, a second through hole 12 is disposed through the second metal support 15, and both the first metal support 14 and the second metal support 15 are used for connecting the outer conductor 501 of the external connection unit 500; the bottom of the low-frequency radiator 21 is provided with a first metal via hole 213 and a second metal via hole 214, the first metal via hole 213 and the first through hole 11 are correspondingly arranged, and the first connection section 221 of the first feed element 220 passes through the first metal via hole 213 and the first through hole 11 to be electrically connected with the inner conductor of the external unit 500; the second metal via 214 and the second via 12 are correspondingly disposed, and the second connection segment 321 of the second feeding element 320 passes through the second metal via 214 and the second via 12 to be electrically connected with the inner conductor of the external unit 500.
In this embodiment, the base 1 is connected to the external unit 500 through a first metal support 14 and a second metal support 15 disposed at the bottom, a first through hole 11 is disposed in the first metal support 14, and a second through hole 12 is disposed in the second metal support 15; meanwhile, the bottom of the low-frequency radiator 21 is respectively provided with a first metal via hole 213 and a second metal via hole 214 corresponding to the first through hole 11 and the second through hole 12, so that the first connection segment 221 of the first feed element 220 arranged in the low-frequency radiator 21 can penetrate into the first metal via hole 213 and the first through hole 11 to be connected with the external unit 500; likewise, the second connection segment 321 of the second feed 320 can penetrate into the second metal via 214 and the second via 12 to connect with the external unit 500. Therefore, the base 1 can realize the support and the electrical connection of the low-frequency radiator 21 and the high-frequency radiator 31, and can also realize the connection of the first feeding element 220 and the second feeding element 320 with the external unit 500, and the structure is compact, thereby being beneficial to the miniaturization of the antenna.
In one embodiment, the first metal support 14 of the chassis 1 passes through the first metal via 213 of the low frequency radiator 21, and the second metal support 15 of the chassis 1 passes through the second metal via 214 of the low frequency radiator 21, which may connect the chassis 1 with the low frequency radiator 21; meanwhile, the first connection section 221 of the first feeding member 220 penetrates into the first metal via hole 213 and the first through hole 11 in the first metal support 14, and accesses an external signal through the external unit 500; the second connection segment 321 of the second feed 320 penetrates into the second metal via 214 and the second via 12 in the second metal support 15, and accesses an external signal through the external unit 500.
Specifically, the first metal support 14 and the second metal support 15 are metal columns, and the bottom of each metal column is further provided with a welding notch 16, so that the metal columns can be conveniently welded with the outer conductor 501 of the external connection unit 500.
Alternatively, the external unit 500 may be a radio frequency transmission member, such as a coaxial cable.
In a particular embodiment, the low frequency radiator 21 and the high frequency radiator 31 each comprise two polarizations, the first feed set 22 comprises two first feeds 220, the second feed set 32 comprises two second feeds 320; the bottom of the low-frequency radiator 21 is provided with 7 metal circular holes, which are two first metal via holes 213, two second metal via holes 214 and three first connection holes 212. Four metal columns are arranged at the bottom of the base 1, two of which are first metal supports 14 for connecting with the first frequency band unit 2, and the other two of which are second metal supports 15 for connecting with the second frequency band unit 3.
In one embodiment, the first feed 220 is one of a sheet metal part, a die cast part, or a printed circuit part; and/or the second feed 320 is one of a sheet metal part, a die cast part, or a printed circuit part. In this embodiment, the first feeding part 220 and the second feeding part 320 are made of sheet metal parts, die castings or printed circuits, and have a simple structure, easy molding and low cost.
Specifically, the first feeding member 220 is an integrally formed member; and/or the second feed 320 is an integrally formed part. The first feeding piece 220 and the second feeding piece 320 are of an integrally formed structure, and are simple in structure, good in consistency, longer in service life and lower in cost.
In an embodiment, as shown in fig. 9, a standing-wave ratio graph of the first frequency band unit of the common-caliber radiating unit provided in the embodiment of the present invention is shown. In the figure, the horizontal axis is frequency, unit MHz, and the vertical axis is standing-wave ratio; the solid line represents the +45 ° polarized standing wave ratio-frequency curve of the first frequency band, and the dotted line represents the-45 ° polarized standing wave ratio-frequency curve of the first frequency band. Therefore, the standing-wave ratio of the low-frequency part of the common-caliber radiating unit is less than 1.4, the impedance matching degree is high, the energy loss of the low-frequency part can be effectively reduced, the input power of the antenna can be reduced, the reliability is high, and the cost is low.
As shown in fig. 10, a graph of standing wave ratio of the second frequency band unit of the common aperture radiating unit provided in the embodiment of the present invention is shown. In the figure, the horizontal axis is frequency, unit MHz, and the vertical axis is standing-wave ratio; the solid line represents the +45 ° polarized standing wave ratio-frequency curve of the second frequency band, and the dotted line represents the-45 ° polarized standing wave ratio-frequency curve of the second frequency band. Therefore, the standing-wave ratio of the high-frequency part of the common-caliber radiating unit is less than 1.25, the impedance matching degree is high, the energy loss of the high-frequency part can be effectively reduced, the input power of the antenna can be reduced, the reliability is high, and the cost is low.
The common-caliber radiating unit has the advantages that the standing-wave ratios of the low-frequency part and the high-frequency part are in a normal range, the impedance matching performance is good, the indexes of each frequency band are ensured not to be deteriorated, the intermodulation stability is good, the reliability is high, and the cost is low.
In another aspect, the present invention further provides an antenna including the common-aperture radiating element provided in any of the above embodiments.
In one embodiment, the antenna comprises a plurality of common-aperture radiating elements, and the plurality of common-aperture radiating elements are combined by the same-frequency elements or at least partially combined by the different-frequency elements.
In the embodiment, the common-caliber radiating unit can obtain the multi-band fusion base station antenna through proper layout, the intermodulation stability is improved, the cost is low, and the problems of reliability and cost of the multi-band multi-port array antenna in the prior art are solved.
The antenna can adopt the combination of the same-frequency units, namely the working frequency bands of the plurality of common-caliber radiating units are the same, and the antenna can simultaneously receive/send signals of a plurality of devices in the same frequency band.
The antenna may also adopt at least partial different frequency combination, that is, at least one of the plurality of common aperture radiating elements is different from other operating frequency bands, so that the antenna can simultaneously receive/transmit signals of a plurality of devices in more frequency bands.
The antenna provided by the embodiment of the invention is more convenient and flexible to use, and meets various use requirements.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; 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 (10)
1. A common aperture radiating element, comprising:
the base is provided with a first through hole and a second through hole;
the first frequency band unit comprises a low-frequency radiator and a first feed group, the low-frequency radiator is supported and arranged on the base, the low-frequency radiator comprises at least one polarization formed by a symmetric dipole binary array, the first feed group comprises at least one first feed piece, one first feed piece is arranged corresponding to the low-frequency binary array of one polarization, the first feed piece comprises a first connecting section and a first feed section, the first connecting section penetrates through the first through hole and is used for accessing an external signal, and the first feed section is coupled with the corresponding low-frequency binary array and is used for coupling and feeding an input signal of the low-frequency radiator;
the second frequency band unit, the nestification set up in the first frequency band unit, the second frequency band unit includes high frequency radiator and second feed group, high frequency radiator support set up in the base, high frequency radiator includes at least one polarization that constitutes by symmetrical dipole binary array, second feed group is including at least one second feed spare, one the second feed spare sets up corresponding to the high frequency binary array of a polarization, the second feed spare includes second linkage segment and second feed section, the second linkage segment is worn to locate the second through-hole for insert external signal, the second feed section with correspond high frequency binary array coupling connection, be used for right high frequency radiator's input signal coupling feed.
2. A co-aperture radiating element according to claim 1, wherein the low frequency radiator comprises two polarizations arranged orthogonally, and the first feed set comprises two first feeds arranged in one-to-one correspondence with the two polarizations of the low frequency radiator.
3. A co-aperture radiating element according to claim 1, wherein the low frequency radiator is provided separately from the base;
the low-frequency radiator is coupled with the base, or the low-frequency radiator is rigidly connected with the base through a metal fastener.
4. A co-aperture radiating element according to claim 1, wherein the high frequency radiator is provided separately from the base;
the high-frequency radiator is coupled with the base, or the high-frequency radiator is rigidly connected with the base through a metal fastener.
5. The common-caliber radiating element according to claim 1, wherein a first metal support and a second metal support are arranged at the bottom of the base, the first through hole penetrates through the first metal support, the second through hole penetrates through the second metal support, and the first metal support and the second metal support are both used for connecting an external conductor of an external unit;
a first metal through hole and a second metal through hole are formed in the bottom of the low-frequency radiator, the first metal through hole and the first through hole are correspondingly arranged, and the first connecting section penetrates through the first metal through hole and the first through hole to be electrically connected with an inner conductor of an external unit; the second metal through hole and the second through hole are correspondingly arranged, and the second connecting section penetrates through the second metal through hole and the second through hole to be electrically connected with an inner conductor of the external unit.
6. A co-aperture radiating element according to any one of claims 1 to 5, wherein the first feed is one of sheet metal, die cast or printed circuit work; and/or the second feeding part is one of a sheet metal part, a die casting part or a printed circuit part.
7. A co-aperture radiating element according to claim 6, wherein the first feed is an integrally formed part; and/or the second feed piece is an integrally-formed piece.
8. The common aperture radiating element according to any one of claims 1 to 5, further comprising a guide plate disposed on a side of the high frequency radiator facing away from the base, the guide plate being spaced apart from the high frequency radiator.
9. An antenna comprising a co-aperture radiating element according to any one of claims 1 to 8.
10. The antenna according to claim 9, wherein the antenna comprises a plurality of the common-caliber radiating elements, and the plurality of the common-caliber radiating elements are a combination of same-frequency elements or a combination of at least some different-frequency elements.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211305985.XA CN115663460A (en) | 2022-10-24 | 2022-10-24 | Common-caliber radiating element and antenna |
| EP23833296.9A EP4383456A1 (en) | 2022-10-24 | 2023-05-17 | Common-caliber radiation unit and antenna |
| PCT/CN2023/094824 WO2024087593A1 (en) | 2022-10-24 | 2023-05-17 | Common-caliber radiation unit and antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211305985.XA CN115663460A (en) | 2022-10-24 | 2022-10-24 | Common-caliber radiating element and antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115663460A true CN115663460A (en) | 2023-01-31 |
Family
ID=84991505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211305985.XA Pending CN115663460A (en) | 2022-10-24 | 2022-10-24 | Common-caliber radiating element and antenna |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4383456A1 (en) |
| CN (1) | CN115663460A (en) |
| WO (1) | WO2024087593A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116995427A (en) * | 2023-09-28 | 2023-11-03 | 中信科移动通信技术股份有限公司 | Radiating element and base station antenna |
| WO2024087593A1 (en) * | 2022-10-24 | 2024-05-02 | 中信科移动通信技术股份有限公司 | Common-caliber radiation unit and antenna |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2950385B1 (en) * | 2014-05-28 | 2016-08-24 | Alcatel Lucent | Multiband antenna |
| CN109980329B (en) * | 2019-03-12 | 2023-12-26 | 广州司南技术有限公司 | Broadband dual polarized antenna |
| CN111342199A (en) * | 2020-03-20 | 2020-06-26 | 摩比天线技术（深圳）有限公司 | Multi-frequency ultra-wideband oscillator and antenna |
| CN112821045B (en) * | 2020-12-31 | 2023-05-30 | 京信通信技术(广州)有限公司 | Radiating element and base station antenna |
| CN115663460A (en) * | 2022-10-24 | 2023-01-31 | 中信科移动通信技术股份有限公司 | Common-caliber radiating element and antenna |
-
2022
- 2022-10-24 CN CN202211305985.XA patent/CN115663460A/en active Pending
-
2023
- 2023-05-17 EP EP23833296.9A patent/EP4383456A1/en active Pending
- 2023-05-17 WO PCT/CN2023/094824 patent/WO2024087593A1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024087593A1 (en) * | 2022-10-24 | 2024-05-02 | 中信科移动通信技术股份有限公司 | Common-caliber radiation unit and antenna |
| CN116995427A (en) * | 2023-09-28 | 2023-11-03 | 中信科移动通信技术股份有限公司 | Radiating element and base station antenna |
| CN116995427B (en) * | 2023-09-28 | 2024-01-26 | 中信科移动通信技术股份有限公司 | Radiating element and base station antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4383456A1 (en) | 2024-06-12 |
| WO2024087593A1 (en) | 2024-05-02 |
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