CN110676572A - Integrated dual-polarized radiation unit and corresponding large-scale array antenna - Google Patents
Integrated dual-polarized radiation unit and corresponding large-scale array antenna Download PDFInfo
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- CN110676572A CN110676572A CN201911106770.3A CN201911106770A CN110676572A CN 110676572 A CN110676572 A CN 110676572A CN 201911106770 A CN201911106770 A CN 201911106770A CN 110676572 A CN110676572 A CN 110676572A
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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
- 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
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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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
Abstract
The invention provides an integrated dual-polarized radiation unit, which enables the radiation unit to simultaneously meet the requirements of miniaturization, broadband, integration, high isolation and high consistency. The feed circuit comprises a radiator, a medium carrier, a feed device, a feed network and a connecting sheet; the radiator is in a polygonal shape, four groups of gaps and four groups of slots are arranged in the surface area of the radiator, the four groups of gaps are rectangular and have a 90-degree rotational symmetry structure, and the four groups of slots are trapezoid-like and have a 90-degree rotational symmetry structure; the feeding device consists of four feeding probes, and every two feeding probes are arranged in a centrosymmetric manner; the feed network consists of two groups of power distributors with equal amplitude and 180-degree difference; the connecting sheet is specifically a plurality of conductors; the dielectric carrier is a carrier structure with a first surface and a second surface which are arranged in parallel, a radiating body is arranged on the first surface of the dielectric carrier, and a feed network and a connecting sheet are arranged on the second surface of the dielectric carrier.
Description
Technical Field
The invention relates to the technical field of mobile communication antennas, in particular to an integrated dual-polarized radiation unit.
Background
Under the situation of video traffic surge, user equipment growth and novel application popularization, the technology of a fifth generation mobile communication system (5G) is urgently required to be rapidly matured and applied, and compared with the existing requirements of faster transmission rate, lower transmission delay and higher reliability, the requirements include mobile communication, Wi-Fi and high-speed wireless data transmission without exception. In order to meet the requirement of mobile communication for high data rate, firstly, a new technology needs to be introduced to improve the spectrum efficiency and the energy utilization efficiency, and secondly, new spectrum resources need to be expanded.
Therefore, the base station antenna will face a great challenge, and the conventional base station antenna cannot meet the requirement of the 5G system, and the challenge of the radiation unit as the antenna core component is the first one. In the prior art, a radiation unit of an antenna is generally realized in the forms of die casting and the like, the radiation unit in the form has the defects of complex structure, high production difficulty, high cost and large interference between polarizations, the size of the radiation unit is small under the requirement of a 5G high-frequency band, and the accurate size must be met, the machining size precision cannot be guaranteed due to the traditional radiation unit realization form, and the errors are large and are often fatal under the requirement of the 5G system high-frequency band. The large-scale dense array is the core technology of future 5G development, and the radiation unit is the core component of the 5G antenna. At present, the radiation unit is generally in a split form, that is, the feed plate, the radiator and the balun need to be assembled and welded for multiple times to form a complete radiation unit. In the process, the top end of the feed plate is welded with the radiator, and the bottom end of the feed plate is welded with the feed network. Therefore, it is difficult for the conventional radiation unit to satisfy the requirements of miniaturization, broadband, integration, high isolation, and high uniformity at the same time.
Disclosure of Invention
In view of the above problems, the present invention provides an integrated dual-polarized radiation unit, which enables the radiation unit to simultaneously meet the requirements of miniaturization, broadband, integration, high isolation and high uniformity.
An integrated dual-polarized radiating element, comprising: the feed circuit comprises a radiator, a medium carrier, a feed device, a feed network and a connecting sheet; the radiator is in a polygonal shape, four groups of gaps and four groups of slots are arranged in the surface area of the radiator, the four groups of gaps are rectangular and have a 90-degree rotational symmetry structure, and the four groups of slots are trapezoid-like and have a 90-degree rotational symmetry structure; the feeding device consists of four feeding probes, and every two feeding probes are arranged in a centrosymmetric manner; the feed network consists of two groups of power distributors with equal amplitude and 180-degree difference; the connecting sheet is specifically a plurality of conductors; the medium carrier is specifically a carrier structure with a first surface and a second surface which are arranged in parallel, a radiator is arranged on the first surface of the medium carrier, a feed network and a connecting sheet are arranged on the second surface of the medium carrier, corresponding through holes are arranged in the height direction of the first surface and the second surface of the medium carrier at intervals corresponding to the positions of the feed probes, the corresponding feed probes penetrate through the through holes, two ends of the corresponding feed probes are respectively connected with the corresponding positions of the first surface and the second surface, the same group of feed probes of the feed device are connected with the feed network to form +/-45-degree polarization, and signals of the feed network are excited to each group of feed probes.
It is further characterized in that:
the connecting sheet is a plurality of square structure conductors;
preferably, the radiator has an octagonal shape;
the four groups of gaps are rectangular and have a 90-degree rotational symmetry structure, the width of each gap is 0.003-0.1 wavelength, and the length of each gap is 0.05-0.15 wavelength; the four groups of slots are in a trapezoid-like shape and have a 90-degree rotational symmetry structure, the height of the trapezoid-like shape is 0.07-0.15 wavelength, the width of the short side of the trapezoid-like shape is 0.15-0.25 wavelength, and the width of the long side of the trapezoid-like shape is 0.3-0.4 wavelength;
the feeding device consists of four cylindrical feeding probes, every two feeding probes are arranged in a centrosymmetric mode, and the distance between every two feeding probes is 0.25-0.35 wavelength;
the height between the first surface and the second surface of the medium carrier is 0.05-0.1 wavelength, and the dielectric constant of the medium carrier is 1.0-20.0.
A large-scale array antenna is characterized by being formed by arranging N multiplied by M groups of integrated dual-polarized radiation unit matrixes, wherein N and M are natural numbers which are more than or equal to 2.
It is further characterized in that: the array antenna is formed by arranging 8 multiplied by 12 groups of integrated dual-polarized radiation unit matrixes.
After adopting above-mentioned technical scheme, it possesses following beneficial effect for prior art: 1. the current path on the surface of the radiator is cut off by slotting and slotting on the surface of the radiator, and the current can only flow around the edge of the slot, so that the current path can be prolonged, and the purposes of miniaturization and low section are achieved; 2. by designing the slotting shape with a special shape, under the condition of the same size, the path of the radiation current is increased, and the working frequency band is expanded to the direction of the low frequency band, thereby realizing the effects of miniaturization and low profile; 3. the integrated radiation unit scheme adopts a 3D plastic vibrator or multilayer printed board laminating process to manufacture a product assembly, has a simple structure, reduces the labor cost, is beneficial to a Surface Mount Technology (SMT), realizes the production automation and improves the production efficiency; in conclusion, the radiation unit can meet the requirements of miniaturization, broadband, integration, high isolation and high consistency at the same time.
Drawings
Fig. 1 is an exploded perspective view of an integrated dual polarized radiating element according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a bottom view of FIG. 1;
FIG. 4 is a side cross-sectional side view of FIG. 1;
FIG. 5 is a voltage standing wave ratio graph of an embodiment of the invention;
FIG. 6 is a graph of port isolation for an embodiment of the present invention;
FIG. 7 is a radiation pattern of an embodiment of the present invention;
FIG. 8 is a large scale array antenna according to an embodiment of the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the antenna comprises a radiator 1, slots 101, 102, 103, 104, slots 105, 106, 107, 108, a feeding device 2, a feeding probe 201, a feeding probe 202, a feeding probe 203, a feeding probe 204, a dielectric carrier 3, a first surface 301, a second surface 302, a through hole 303, a connecting sheet 4, a feeding network 5, a power divider 501 and a power divider 502.
Detailed Description
An embodiment of an integrated dual-polarized radiating element is shown in fig. 1-4: the feed device comprises a radiator 1, a dielectric carrier 3, a feed device 2, a feed network 5 and a connecting sheet 4; the radiator 1 is polygonal, four groups of gaps and four groups of slots are arranged in the surface area of the radiator, the four groups of gaps are rectangular and have a 90-degree rotational symmetry structure, and the four groups of slots are trapezoid-like and have a 90-degree rotational symmetry structure; the feed device consists of four feed probes, and every two feed probes are arranged in a centrosymmetric way; the feed network 5 consists of two groups of power distributors 501 and 502 with equal amplitude and 180-degree difference; the connecting sheet 4 is a plurality of conductors;
the dielectric carrier 3 is specifically a carrier structure with a first surface 301 and a second surface 302 which are arranged in parallel, a radiator 1 is arranged on the first surface 301 of the dielectric carrier 3, a feed network and a connecting sheet are arranged on the second surface of the dielectric carrier 3, a corresponding through hole 303 is arranged in the height direction of the interval between the first surface 301 and the second surface 302 of the dielectric carrier 3 and corresponds to the position of the feed probe, the corresponding feed probe penetrates through the through hole 303, and two ends of the corresponding feed probe are respectively connected with the corresponding positions of the first surface 301 and the second surface 302, the same group of feed probes of the feed device 2 are connected with the feed network 5 to form plus or minus 45-degree polarization, and the signals are excited to each group of feed probes through the feed network 5.
Specific examples, see fig. 1-4: the radiator 1 is in an octagonal shape, wherein four groups of slots 101, 102, 103 and 104 are rectangular and have a 90-degree rotational symmetry structure, the slot 101 and the slot 103 are respectively parallel to the slot 102 and the slot 104, and the slot 101 and the slot 102 are respectively perpendicular to the slot 103 and the slot 104; the four groups of slots 105, 106, 107 and 108 are trapezoid-like and have a 90-degree rotational symmetry structure; the feeding device 2 is composed of four cylindrical feeding probes 201, feeding probes 202, feeding probes 203 and feeding probes 204, every two feeding probes are arranged in a central symmetry manner, and the feeding probes 201 and the feeding probes 202 are in mirror symmetry with the feeding probes 203 and the feeding probes 204 respectively; the feed network 5 is composed of two groups of power dividers 501 and power dividers 502 which have equal amplitudes and 180-degree difference, the power dividers 501 are connected with the radiator 1 through the feed probes 201 and 203, the power dividers 502 are connected with the radiator 1 through the feed probes 202 and 204, the connecting pieces 4 are a plurality of square-structure conductors, and the radiator 1, the feed device 2, the feed network 5 and the connecting pieces 4 are arranged on the surface of the dielectric carrier 3.
The width of the gap of the radiator 1 is 0.003-0.1 wavelength, and the length of the gap is 0.05-0.15 wavelength; the height of the slotted trapezoid is 0.07-0.15 wavelength, the width of the short side of the trapezoid is 0.15-0.25 wavelength, and the width of the long side of the trapezoid is 0.3-0.4 wavelength;
the distance between each group of feed probes of the feed device is 0.25-0.35 wavelength;
the height between the first surface and the second surface of the medium carrier is 0.05-0.1 wavelength, and the dielectric constant of the medium carrier is 1.0-20.0.
Fig. 5 shows the voltage standing wave ratio of the ± 45 ° polarization port of the embodiment of the integrated dual-polarized radiation unit of the present invention, which is less than 1.31 within the 2500-.
Fig. 6 shows the port isolation of the embodiment of the integrated dual-polarized radiation unit of the present invention, which is less than-24 dB in the 2500 + 2700MHz frequency band, and has good isolation performance.
Fig. 7 shows the radiation pattern of the embodiment of the integrated dual-polarized radiation unit of the present invention, the horizontal beam width is 90 ° ± 1.5 °, and the radiation performance is good.
Compared with the prior art, the integrated dual-polarized radiation unit has the following beneficial effects:
1. the current path on the surface of the radiator is cut off by slotting and slotting on the surface of the radiator, and the current can only flow around the edge of the slot, so that the current path can be prolonged, and the purposes of miniaturization and low section are achieved;
2. by designing the slotting shape with a special shape, under the condition of the same size, the path of the radiation current is increased, and the working frequency band is expanded to the direction of the low frequency band, thereby realizing the effects of miniaturization and low profile;
3. the integrated radiating unit scheme adopts a 3D plastic vibrator or multilayer printed board laminating process to manufacture product components, has a simple structure, reduces the labor cost, is beneficial to a Surface Mount Technology (SMT), realizes the production automation and improves the production efficiency.
A large-scale array antenna is characterized by being formed by arranging N multiplied by M groups of integrated dual-polarized radiation unit matrixes, wherein N and M are natural numbers which are more than or equal to 2. In the specific embodiment, see fig. 8, it is composed of 8 × 12 groups of integrated dual-polarized radiation element matrix.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. An integrated dual-polarized radiating element, comprising: the feed circuit comprises a radiator, a medium carrier, a feed device, a feed network and a connecting sheet; the radiator is in a polygonal shape, four groups of gaps and four groups of slots are arranged in the surface area of the radiator, the four groups of gaps are rectangular and have a 90-degree rotational symmetry structure, and the four groups of slots are trapezoid-like and have a 90-degree rotational symmetry structure; the feeding device consists of four feeding probes, and every two feeding probes are arranged in a centrosymmetric manner; the feed network consists of two groups of power distributors with equal amplitude and 180-degree difference; the connecting sheet is specifically a plurality of conductors; the medium carrier is specifically a carrier structure with a first surface and a second surface which are arranged in parallel, a radiator is arranged on the first surface of the medium carrier, a feed network and a connecting sheet are arranged on the second surface of the medium carrier, corresponding through holes are arranged in the height direction of the first surface and the second surface of the medium carrier at intervals corresponding to the positions of the feed probes, the corresponding feed probes penetrate through the through holes, two ends of the corresponding feed probes are respectively connected with the corresponding positions of the first surface and the second surface, the same group of feed probes of the feed device are connected with the feed network to form +/-45-degree polarization, and signals of the feed network are excited to each group of feed probes.
2. An integrated dual polarized radiating element according to claim 1, wherein: the connecting pieces are a plurality of square structure conductors.
3. An integrated dual polarized radiating element according to claim 1, wherein: the radiator is octagonal in shape.
4. An integrated dual polarized radiating element according to claim 3, wherein: the four groups of gaps are rectangular and have a 90-degree rotational symmetry structure, the width of each gap is 0.003-0.1 wavelength, and the length of each gap is 0.05-0.15 wavelength; the four groups of slots are in a trapezoid-like shape and have a 90-degree rotational symmetry structure, the height of the trapezoid-like shape is 0.07-0.15 wavelength, the width of the short side of the trapezoid-like shape is 0.15-0.25 wavelength, and the width of the long side of the trapezoid-like shape is 0.3-0.4 wavelength.
5. An integrated dual polarized radiating element according to claim 4, wherein: the feeding device is composed of four cylindrical feeding probes, every two feeding probes are arranged in a centrosymmetric mode, and the distance between every two feeding probes is 0.25-0.35 wavelength.
6. An integrated dual polarized radiating element according to claim 5, wherein: the height between the first surface and the second surface of the medium carrier is 0.05-0.1 wavelength, and the dielectric constant of the medium carrier is 1.0-20.0.
7. A large-scale array antenna comprising N x M groups of matrix arrangements of integrated dual polarized radiating elements according to claims 1-6, wherein N and M are both natural numbers equal to or greater than 2.
8. The massive array antenna of claim 7, wherein: the array antenna is formed by arranging 8 multiplied by 12 groups of integrated dual-polarized radiation unit matrixes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911106770.3A CN110676572A (en) | 2019-11-13 | 2019-11-13 | Integrated dual-polarized radiation unit and corresponding large-scale array antenna |
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| CN201911106770.3A CN110676572A (en) | 2019-11-13 | 2019-11-13 | Integrated dual-polarized radiation unit and corresponding large-scale array antenna |
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| CN110676572A true CN110676572A (en) | 2020-01-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114696070A (en) * | 2020-12-26 | 2022-07-01 | 华为技术有限公司 | Antenna, antenna module and network equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114696070A (en) * | 2020-12-26 | 2022-07-01 | 华为技术有限公司 | Antenna, antenna module and network equipment |
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Application publication date: 20200110 |