CN112886255A - 5G ultra-wideband small-sized dual-polarized horn antenna - Google Patents
5G ultra-wideband small-sized dual-polarized horn antenna Download PDFInfo
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- CN112886255A CN112886255A CN202110177544.5A CN202110177544A CN112886255A CN 112886255 A CN112886255 A CN 112886255A CN 202110177544 A CN202110177544 A CN 202110177544A CN 112886255 A CN112886255 A CN 112886255A
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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
- H01Q13/02—Waveguide horns
- H01Q13/0208—Corrugated horns
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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
- H01Q13/02—Waveguide horns
- H01Q13/0275—Ridged horns
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Abstract
The invention discloses a 5G ultra-wideband small dual-polarized horn antenna, and relates to the technical field of horn antennas. The antenna includes upper plate, hypoplastron, front bezel, back plate and apron, the apron is located the rear end of antenna, front bezel and back plate are located between upper plate and the hypoplastron, the inside of upper plate, hypoplastron, front bezel, back plate and apron encloses synthetic excitation cavity structures, be formed with the cross section in the cavity structures and reduce gradually again for rectangle and cross section from the right side to a left side and keep unchangeable excitation chamber, the left end in excitation chamber passes through the apron is sealed, all be formed with a curve spine on upper plate, hypoplastron, front bezel and the back plate in the excitation chamber, the contained angle between spine and the spine is 90, be formed with a plurality of Archimedes spiral curve on the curve spine. The antenna can improve the symmetry of the directional diagrams of the E surface and the H surface, the high-frequency directional diagrams are more stable, and the gain flatness is improved.
Description
Technical Field
The invention relates to the technical field of horn antennas, in particular to a 5G ultra wide band small dual-polarized horn antenna.
Background
At present, a large number of 5G consumer electronic products are in the research, development and verification stage, and the performance of the products is in urgent need of verification. At present, the testing antenna (the testing frequency is 18 GHz-50 GHz) of millimeter wave band is monopolized by foreign suppliers. Resulting in high price of the antenna, long exchange period, and failure to cope with explosive growth of domestic demand. Due to the 5G characteristic, 360-degree spherical scanning needs to be carried out on each product in the testing process, so that the antenna quality is confirmed. In the traditional test method, a plurality of single-polarized antennas are adopted to form a test antenna array, and the product is scanned in an omnibearing way (a plurality of antennas are used for testing, and rotation is replaced). A dual-polarized high-gain horn antenna E-plane and H-plane directional patterns in the prior art are poor in symmetry, and high-frequency directional patterns are unstable.
Disclosure of Invention
The invention aims to solve the technical problem of how to provide a 5G ultra wide band small dual-polarized horn antenna which can improve the symmetry of E-plane and H-plane directional diagrams, is more stable in a high-frequency directional diagram and improves the gain flatness.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a small-size dual polarization horn antenna of 5G ultra wide band which characterized in that: the antenna comprises an upper plate, a lower plate, a front plate, a rear plate and a cover plate, wherein the cover plate is positioned at the rear end of the antenna, the front plate and the rear plate are positioned between the upper plate and the lower plate, the interiors of the upper plate, the lower plate, the front plate, the rear plate and the cover plate enclose a stimulation cavity structure, a stimulation cavity with a rectangular cross section is formed in the cavity structure, the cross section of the stimulation cavity is gradually reduced from right to left and then is kept unchanged, the left end of the stimulation cavity is sealed by the cover plate, the upper plate, the lower plate, the front plate and the rear plate in the stimulation cavity are respectively provided with a curve ridge, the included angle between the ridge and the ridge is 90 degrees, and a plurality of Archimedes spiral curves are formed on the curve ridge; the inner sides of the left ends of the upper plate, the lower plate, the front plate and the rear plate are provided with a first slot structure, the right end face of the cover plate is provided with a first boss, the first boss is inserted into a first slot formed by surrounding the upper plate, the lower plate, the front plate and the rear plate, and the left end face of the first boss is provided with two rows of blind holes which are crossed and are orthogonal to a cross formed by four curved ridges.
The further technical scheme is as follows: a plurality of Archimedes spiral curves are formed on two relatively large surfaces of the curve ridge; or the curve ridge is provided with a continuous corrugated groove penetrating through the larger two surfaces of the curve ridge; or a plurality of strip-shaped sunken grooves which are vertical to the outer side surface of the curved ridge are formed on the two relatively larger surfaces of the curved ridge; or a plurality of strip-shaped sunken grooves parallel to the outer side surface of the curved ridge are formed on the two relatively larger surfaces of the curved ridge.
The further technical scheme is as follows: a first central hole and a second central hole which penetrate through curve ridges of the upper plate and the lower plate are formed in the upper plate and the lower plate respectively, the first central hole and the second central hole are arranged oppositely, the upper end of a first central column sequentially penetrates through the second central hole and the first central hole and then is electrically connected with a first connector fixed on the periphery of the upper plate, and the lower end of the first central column is fixed in the second central hole; a third central hole and a fourth central hole which penetrate through curve ridges of the front plate and the rear plate are formed in the front plate and the rear plate respectively, the third central hole and the fourth central hole are arranged oppositely, the rear end of a second central column sequentially penetrates through the third central hole and the fourth central hole and then is electrically connected with a second connector fixed on the periphery of the rear plate, and the front end of the second central column is fixed in the third central hole; a gap is kept between the first central column and the second central column.
The further technical scheme is as follows: the right end face of the first boss is provided with four second bosses which are annularly arranged at equal intervals, a second slot is formed in the second bosses, the tail end of the curve ridge is inserted into the second slot, and the blind hole is located in the right end face of the first boss between the second bosses.
Preferably, the distance between the first central column and the second central column is 0.5 mm.
The further technical scheme is as follows: the front side and the rear side of the upper plate and the lower plate are respectively provided with a row of threaded mounting holes, the positions of the front plate and the rear plate corresponding to the upper plate and the lower plate are also provided with threaded mounting holes, and the upper plate, the lower plate, the front plate and the rear plate are fixed together through the threaded mounting holes and screws which are matched with each other.
The further technical scheme is as follows: the left end face of the cover plate is provided with a threaded blind hole, and the threaded blind hole is used for installing a base.
The further technical scheme is as follows: the ridge curve of the curved ridge (10) conforms to the curve equation: y =10^ (a x + b) + c x, where y denotes the height of the ridge, x denotes the length of the ridge, and a, b, c are constants.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the antenna has a simple and compact structure, is miniaturized, and effectively saves space; 2.92 mm or 2.4 mm coaxial connectors are adopted, the impedance matching design is optimized, and the bandwidth of the antenna is ultra wide; an Archimedes spiral curve is formed on each curve ridge, so that the symmetry of directional diagrams of the E surface and the H surface can be improved, a high-frequency directional diagram is more stable, and the gain flatness is improved; and the first boss is provided with a blind hole, so that standing wave matching can be effectively adjusted, and the broadband working capacity is improved. In addition, a corrugated structure can be added on the ridge curve position, the symmetry of the E-plane directional diagram and the H-plane directional diagram is improved, the side lobe is reduced, and the gain flatness is improved; and strip-shaped sinking grooves can be added on the ridges to inhibit surface current and improve a high-frequency directional diagram.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic perspective view of a horn antenna according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a horn antenna according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a right view structure of a horn antenna according to an embodiment of the present invention
FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;
fig. 5 is a schematic cross-sectional structure diagram of a horn antenna according to an embodiment of the present invention;
FIG. 6 is an enlarged schematic view of FIG. 5 at B;
fig. 7 is a schematic cross-sectional structure diagram of a horn antenna according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a partially exploded structure of a horn antenna according to an embodiment of the present invention;
fig. 9 is an enlarged schematic view of the structure at C of fig. 8;
FIG. 10 is a first structural schematic of the curved ridge and upper plate in an embodiment of the present invention;
FIG. 11 is a second structural schematic of the curved ridge in an embodiment of the present invention;
FIG. 12 is a third structural schematic of the curved ridge in an embodiment of the present invention;
FIG. 13 is a fourth structural schematic of the curved ridge in an embodiment of the present invention;
wherein: 1. An upper plate; 2. a lower plate; 3. a front plate; 4. a back plate; 5. a cover plate; 6. a curved ridge; 7. an archimedes spiral curve; 8. a first boss; 9. blind holes; 10. a first central column; 11. a first connector; 12. a second central column; 13. a second connector; 14. a threaded mounting hole; 15. a threaded blind hole; 16 a second boss; 17. a second slot; 18. a corrugated groove; 19. and (5) strip-shaped sinking grooves.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1-10, the embodiment of the invention discloses a 5G ultra-wideband small dual-polarized horn antenna, which comprises an upper plate 1, a lower plate 2, a front plate 3, a rear plate 4 and a cover plate 5, wherein the cover plate 5 is located at the rear end of the antenna, the front plate 3 and the rear plate 4 are located between the upper plate 1 and the lower plate 1, a row of threaded mounting holes 14 are respectively arranged on the front side and the rear side of the upper plate 1 and the lower plate 2, threaded mounting holes 14 are also arranged on the positions, corresponding to the upper plate and the lower plate, of the front plate 3 and the rear plate 4, and the upper plate 1, the lower plate 2, the front plate 3 and the rear plate 4 are fixed together through mutually matched threaded mounting holes and screws.
As shown in fig. 5, an excitation cavity structure is enclosed by the upper plate 1, the lower plate 2, the front plate 3, the rear plate 4 and the cover plate, an excitation cavity with a rectangular cross section is formed in the cavity structure, the cross section of the excitation cavity gradually decreases from right to left and then remains unchanged, and the left end of the excitation cavity is sealed by the cover plate 5. The exciting cavity is characterized in that a curve ridge 6 is formed on the upper plate 1, the lower plate 2, the front plate 3 and the rear plate 4 in the exciting cavity, an included angle between the ridge and the ridge is 90 degrees, a plurality of Archimedes spiral curves 7 are formed on the curve ridge 6, the curve ridges 6 on the upper plate 1, the lower plate 2, the front plate 3 and the rear plate 4 are integrally formed with the curve ridge 6, the Archimedes spiral curves 7 are arranged on two relatively large surfaces of the curve ridge 6, and the Archimedes spiral curves 7 are formed in a form of grooves carved on the curve ridge 6.
Furthermore, as shown in fig. 11, the curved ridge 6 may be formed with a continuous corrugated groove 18 extending through its larger two faces; or as shown in fig. 12, the curved ridge 6 may also have a plurality of strip-shaped sunken grooves 19 formed on two relatively large surfaces and perpendicular to the outer side surface of the curved ridge; or as shown in fig. 13, the curved ridge 6 may also be formed with a plurality of strip-shaped sunken grooves 19 parallel to the outer side surface of the curved ridge on two relatively large surfaces.
As shown in fig. 5 and 7-8, a first slot structure is formed inside the left ends of the upper plate 1, the lower plate 2, the front plate 3, and the rear plate 4, a first boss 8 is formed on the right end face of the cover plate 5, the first boss 8 is inserted into a first slot formed by enclosing the upper plate 1, the lower plate 2, the front plate 3, and the rear plate 4, and two rows of criss-cross blind holes 9 are formed on the left end face of the first boss 8 and are orthogonal to the "+" shape formed by the four curved ridges 6.
As shown in fig. 5-9, a first central hole and a second central hole penetrating through the curved ridge 6 of the upper plate 1 and the lower plate 2 are respectively formed on the upper plate and the lower plate, the first central hole and the second central hole are arranged oppositely, the upper end of a first central pillar 10 sequentially passes through the second central hole and the first central hole and then is electrically connected with a first connector 11 fixed on the periphery of the upper plate 1, and the lower end of the first central pillar 10 is fixed in the second central hole; a third central hole and a fourth central hole which penetrate through the curve ridge 6 of the front plate 3 and the rear plate (4) are formed in the front plate and the rear plate respectively, the third central hole and the fourth central hole are arranged oppositely, the rear end of a second central column 12 sequentially penetrates through the third central hole and the fourth central hole and then is electrically connected with a second connector 13 fixed on the periphery of the rear plate 4, and the front end of the second central column 10 is fixed in the third central hole; a gap is maintained between the first central pillar 10 and the second central pillar 12. Preferably, as shown in fig. 6, the distance between the first central pillar 10 and the second central pillar 12 is 0.5 mm.
As shown in fig. 8, four second bosses 16 are formed at the right end surface of the first boss 8, the second bosses 16 are arranged at equal intervals in a ring shape, a second slot 17 is formed on the second boss 16, the tail end of the curved ridge 6 is inserted into the second slot 17, and the blind hole 9 is located on the right end surface of the first boss 8 between the second bosses 16.
As shown in fig. 1, a blind threaded hole 15 is formed in the left end surface of the cover plate 5, and the blind threaded hole 15 is used for mounting a base. Preferably, the ridge curve of the curved ridge 6 conforms to the curve equation: y =10^ (a x + b) + c x, where y denotes the height of the ridge, x denotes the length of the ridge, and a, b, c are constants.
In conclusion, the antenna has a simple and compact structure, is miniaturized, and effectively saves space; 2.92 mm or 2.4 mm coaxial connectors are adopted, the impedance matching design is optimized, and the bandwidth of the antenna is ultra wide; an Archimedes spiral curve is formed on each curve ridge, so that the symmetry of directional diagrams of the E surface and the H surface can be improved, a high-frequency directional diagram is more stable, and the gain flatness is improved; the blind holes are formed on the first bosses, so that standing wave matching can be effectively adjusted, and the broadband working capacity is improved; in addition, a corrugated structure can be added on the ridge curve position, the symmetry of the E-plane directional diagram and the H-plane directional diagram is improved, the side lobe is reduced, and the gain flatness is improved; and strip-shaped sinking grooves can be added on the ridges to inhibit surface current and improve a high-frequency directional diagram.
Claims (8)
1. The utility model provides a small-size dual polarization horn antenna of 5G ultra wide band which characterized in that: the antenna comprises an upper plate (1), a lower plate (2), a front plate (3), a rear plate (4) and a cover plate (5), wherein the cover plate (5) is located at the rear end of the antenna, the front plate (3) and the rear plate (4) are located between the upper plate (1) and the lower plate (1), the upper plate (1), the lower plate (2), the front plate (3), the rear plate (4) and the cover plate enclose a synthetic excitation cavity structure, an excitation cavity with a rectangular cross section is formed in the cavity structure, the cross section of the excitation cavity is gradually reduced from right to left and then kept unchanged, the left end of the excitation cavity is sealed through the cover plate (5), a curved ridge (6) is formed on each of the upper plate (1), the lower plate (2), the front plate (3) and the rear plate (4) in the excitation cavity, and an included angle between the ridges is 90 degrees; the left end inboard of upper plate (1), hypoplastron (2), front bezel (3), backplate (4) is formed with first slot structure, the right side terminal surface of apron (5) is formed with first boss (8), first boss (8) are inserted in upper plate (1), hypoplastron (2), front bezel (3) and backplate (4) enclose close the first slot that forms in, be formed with two rows on the left end face of first boss (8) and be criss-cross blind hole (9), and with the "+" word quadrature that four curved line ridges (6) formed.
2. The 5G ultra-wideband compact dual-polarized horn antenna of claim 1, wherein: a plurality of Archimedes spiral curves (7) are formed on two relatively large surfaces of the curve ridge (6); or the curved ridge (6) is provided with a continuous corrugated groove (18) which penetrates through the larger two surfaces of the curved ridge; or a plurality of strip-shaped sunken grooves (19) vertical to the outer side surface of the curved ridge are formed on the two relatively larger surfaces of the curved ridge (6); or a plurality of strip-shaped sunken grooves (19) which are parallel to the outer side surface of the curved ridge are formed on the two relatively larger surfaces of the curved ridge (6).
3. The 5G ultra-wideband compact dual-polarized horn antenna of claim 1, wherein: a first central hole and a second central hole which penetrate through a curve ridge (6) of the upper plate (1) and the lower plate (2) are formed in the upper plate and the lower plate respectively, the first central hole and the second central hole are arranged oppositely, the upper end of a first central column (10) sequentially penetrates through the second central hole and the first central hole and then is electrically connected with a first connector (11) fixed on the periphery of the upper plate (1), and the lower end of the first central column (10) is fixed in the second central hole; a third central hole and a fourth central hole which penetrate through a curve ridge (6) of the front plate (3) and the rear plate (4) are formed in the front plate and the rear plate respectively, the third central hole and the fourth central hole are arranged oppositely, the rear end of a second central column (12) sequentially penetrates through the third central hole and the fourth central hole and then is electrically connected with a second connector (13) fixed on the periphery of the rear plate (4), and the front end of the second central column (10) is fixed in the third central hole; a gap is kept between the first central column (10) and the second central column (12).
4. The 5G ultra-wideband compact dual-polarized horn antenna of claim 1, wherein: the right-hand member face of first boss (8) is formed with four second boss (16) that the equidistant cyclic annular set up, form second slot (17) on second boss (16), the tail end of curve spine (6) is inserted in second slot (17), blind hole (9) are located on the right-hand member face of first boss (8) between second boss (16).
5. The 5G ultra-wideband compact dual-polarized horn antenna of claim 1, wherein: the distance between the first central column (10) and the second central column (12) is 0.5 mm.
6. The 5G ultra-wideband compact dual-polarized horn antenna of claim 1, wherein: the front side and the rear side of the upper plate (1) and the lower plate (2) are respectively provided with a row of threaded mounting holes (14), the positions of the front plate (3) and the rear plate (4) corresponding to the upper plate and the lower plate are also provided with the threaded mounting holes (14), and the upper plate (1), the lower plate (2), the front plate (3) and the rear plate (4) are fixed together through the mutually matched threaded mounting holes and screws.
7. The 5G ultra-wideband compact dual-polarized horn antenna of claim 1, wherein: the left end face of the cover plate (5) is provided with a threaded blind hole (15), and the threaded blind hole (15) is used for installing a base.
8. The 5G ultra-wideband compact dual-polarized horn antenna of claim 1, wherein: the ridge curve of the curve ridge (6) conforms to the curve equation: y =10^ (a x + b) + c x, where y denotes the height of the ridge, x denotes the length of the ridge, and a, b, c are constants.
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| CN202110177544.5A CN112886255B (en) | 2021-02-07 | 2021-02-07 | 5G ultra-wideband small-sized dual-polarized horn antenna |
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| CN202110177544.5A CN112886255B (en) | 2021-02-07 | 2021-02-07 | 5G ultra-wideband small-sized dual-polarized horn antenna |
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| CN112886255A true CN112886255A (en) | 2021-06-01 |
| CN112886255B CN112886255B (en) | 2021-12-21 |
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Cited By (2)
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| WO2023050847A1 (en) * | 2021-09-30 | 2023-04-06 | 胡南 | Compact broadband circularly polarized antenna |
| US20230411857A1 (en) * | 2021-02-07 | 2023-12-21 | Nan Hu | 5G millimeter-wave novel dual-polarized horn antenna |
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| CN112886255B (en) | 2021-12-21 |
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