CN117374599B - Multichannel common-phase center dielectric resonator antenna - Google Patents
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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
- H01Q9/0485—Dielectric resonator antennas
- H01Q9/0492—Dielectric resonator antennas circularly polarised
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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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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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
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
- H01Q15/08—Refracting or diffracting devices, e.g. lens, prism formed of solid dielectric material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
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Abstract
The invention discloses a multichannel co-phase center dielectric resonator antenna, wherein the phase centers of all channels in the multichannel co-phase center dielectric resonator antenna are close to the physical center of the multichannel co-phase center dielectric resonator antenna, so that the performance similar to the co-phase center is realized, and the bandwidth is increased by resonance; on one hand, each feed probe in the multichannel coaxial dielectric resonator antenna corresponds to one channel, so that the multichannel antenna is realized, the capacity of the antenna is high, the manufacturing and maintenance cost is reduced, and the equipment volume is reduced; on the other hand, as the phase center of each channel in the multi-channel co-centered dielectric resonator antenna is close to or coincident with the physical center of the antenna, the phase centers of different channels are relatively close to each other, and the beam direction difference generated by each channel is small, the same sector can be effectively covered, and the communication quality is improved. The invention is applied to the technical field of wireless communication.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a multichannel co-phase center dielectric resonator antenna.
Background
In wireless communication, a lens antenna is used to achieve high gain, thereby enhancing the coverage of wireless signals. The lens antenna can realize larger coverage area by utilizing the high gain characteristic, can reduce the number of base stations in mobile communication, reduce the cost of base station deployment, and can compensate the loss in satellite communication so as to realize long-distance transmission. On the other hand, the lens antenna has the characteristics of narrow beam and high directivity, and can supplement the coverage blind area of a conventional base station. For example, long Bo lens antennas have been used in coastal, tunnel, etc. scenes. In addition, it can be used to implement point-to-point communication, for example, wireless backhaul can implement high-speed data transmission in environments where optical fibers are not easily laid.
Lens antennas all require feed antennas. When designing the antenna, the feed source antenna needs to be placed at the focal position of the lens, so that the phases of the emitted electromagnetic wave fronts are nearly consistent, and high gain is obtained. Often one focal position corresponds to one beam pointing direction, and thus, placing a feed antenna at a different focal position results in beams of different pointing directions. Differently directed beams may serve users in different areas (sectors). As the number of users increases and the demand for wireless transmission rates increases, increasing the capacity of antennas becomes a critical issue in wireless communications. To improve the user experience, the capacity of the dense user area needs to be improved, and the conventional scheme can use multiple antennas to cover the same sector, but in this way, the antenna cost and the deployment cost are both increased. How to use the same pair of lens antennas to increase the capacity and transmission rate of the target area is a challenge to be solved.
Noun interpretation:
phase center: the location of the equivalent point source of the antenna electromagnetic radiation is the center of its phase if the antenna radiates a spherical (or nearly spherical) equiphase surface.
Disclosure of Invention
Aiming at the technical problems of small channel number, low capacity, high cost and the like of the current feed source antenna, the invention aims to provide a multichannel co-phased dielectric resonator antenna.
The embodiment of the invention comprises a multichannel co-phase center dielectric resonator antenna, which comprises:
a floor;
a dielectric radiator; the medium radiator is arranged on one surface of the floor, and the horizontal section of the medium radiator is provided with a plurality of symmetrical shafts or is centrally symmetrical; wherein the horizontal section is a section parallel to the floor;
a plurality of feed probes; the feed probe penetrates through the floor and penetrates into the medium radiator, or is attached to the side face of the medium radiator; the position of each feed probe corresponding to the horizontal section is located on the symmetry axis of the horizontal section or is symmetrical about the rotation center of the horizontal section, and the distance between the feed probe and the geometric center of the horizontal section is equal.
Further, the multi-channel co-phased dielectric resonator antenna further includes:
a plurality of decoupling structures; the decoupling structure penetrates into the medium radiator or is attached to the side face of the medium radiator; wherein the side surface is an outer surface perpendicular to the floor; each feed probe and each decoupling structure are perpendicular to the floor.
Further, the decoupling structures are symmetrically distributed in the horizontal section at positions corresponding to the horizontal section.
Further, each decoupling structure belongs to a corresponding structure group, so as to form a plurality of structure groups;
the first contour and the second contour corresponding to each structure group have the same shape; the first contour is a contour formed by sequentially connecting positions of decoupling structures in the same structure group as vertexes, and the second contour is a contour formed by sequentially connecting positions of feed probes as vertexes;
further, the center of each of the first profile and the second profile coincides with the horizontal cross-section geometric center;
each first contour is nested in sequence, and all the first contours are nested inside the second contour;
each first contour and each second contour form a corresponding rotation angle difference, and each rotation angle difference is graded according to the sequence from outside to inside of the corresponding first contour.
Further, the multi-channel co-phased dielectric resonator antenna further includes:
a plurality of parasitic metal plates; each parasitic metal plate corresponds to one feed probe; the parasitic metal plate is arranged on one surface of the floor and is positioned on the outer side of the medium radiator.
Further, the parasitic metal plate is located on the geometric center of the horizontal section and the extension line of the corresponding feed probe.
Further, the parasitic metal plate is provided with branches, or the cross section of the parasitic metal plate is rectangular, triangular, circular or gradually-changed.
Further, the dielectric radiator includes a plurality of dielectric radiating elements;
the medium radiation units are close to each other;
each medium radiation unit corresponds to one feed probe respectively, and each medium radiation unit is penetrated into the interior by the corresponding feed probe respectively.
Further, the multi-channel co-phased dielectric resonator antenna further includes:
long Bo lenses; the Long Bo lens is positioned on one side of the dielectric radiator.
The beneficial effects of the invention are as follows: in the multi-channel co-phase center dielectric resonator antenna in the embodiment, each feed probe corresponds to one channel in the antenna, and dielectric radiators comprising a plurality of channels are close to each other or combined as a whole, so that the phase centers of the channels are close to the physical center of the multi-channel co-phase center dielectric resonator antenna, the performance similar to the co-phase center is realized, and the resonance bandwidth is increased; on one hand, each feed probe in the multichannel coaxial dielectric resonator antenna corresponds to one channel, so that the multichannel antenna is realized, the capacity of the antenna is high, and the use and maintenance cost is reduced; on the other hand, as the phase center of each channel in the multi-channel co-centered dielectric resonator antenna is close to or coincident with the physical center of the antenna, the phase centers of different channels are relatively close to each other, and the beam direction difference generated by each channel is small, the same sector can be effectively covered, and the communication quality is improved.
Drawings
FIG. 1 is a side view of a multi-channel co-centered dielectric resonator antenna in accordance with an embodiment of the present invention;
FIG. 2 is a top view of a multi-channel co-centered dielectric resonator antenna according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a dielectric radiator according to an embodiment of the present invention;
fig. 4 is a side view of a multi-channel co-phased dielectric resonator antenna with decoupling structures and parasitic metal plates in accordance with an embodiment of the present invention;
fig. 5 is a top view of a multi-channel co-phased dielectric resonator antenna with decoupling structures and parasitic metal plates in accordance with an embodiment of the present invention;
FIG. 6 is a schematic diagram of the distribution of decoupling structures in an embodiment of the present invention;
FIG. 7 is a schematic view of a parasitic metal plate with a stub according to an embodiment of the present invention;
FIG. 8 is a schematic view of a dielectric radiator with a circular horizontal cross section in an embodiment of the present invention;
FIG. 9 is a schematic illustration of a dielectric radiator having a cross-shaped cross-section in accordance with an embodiment of the present invention;
FIG. 10 is a schematic illustration of a dielectric radiator having a special shape in horizontal cross section in an embodiment of the present invention;
FIG. 11 is a schematic view of a V-shaped parasitic metal plate according to an embodiment of the present invention;
FIG. 12 is a schematic diagram of a plurality of parasitic metal plates corresponding to each feed probe in an embodiment of the invention;
FIG. 13 is a schematic diagram of a multi-channel co-phased dielectric resonator antenna with a Long Bo lens in an embodiment of the invention;
fig. 14 is a schematic diagram of an antenna S parameter obtained by simulating a multi-channel co-phase center dielectric resonator antenna according to an embodiment of the present invention;
FIG. 15 is an antenna H-plane radiation pattern obtained by simulating a multi-channel co-phased dielectric resonator antenna in an embodiment of the present invention;
fig. 16 is an E-plane radiation pattern of an antenna obtained by simulating a multi-channel co-phased dielectric resonator antenna according to an embodiment of the present invention.
Reference numerals: 100-floor, 200-dielectric radiator, 201, 202, 203, 204-dielectric radiating element, 301, 302, 303, 304-feed probe, 400-decoupling structure, 500-parasitic metal plate, C1, C2, C3, C4-channel, 600-Long Bo lens.
Detailed Description
At present, more than one radio frequency channel co-phase center can be realized by using dual-polarized two-channel antennas, but the number of channels of the dual-polarized two-channel antennas cannot be further increased, the capacity requirement of a dense user area cannot be met, and under the condition that 2 dual-polarized two-channel antennas are used, the phase centers of all channels are far apart, the beam direction difference generated by each channel is large, and the same sector cannot be effectively covered; on the other hand, the coupling between different units in the dual polarized two channel antenna increases with decreasing distance, affecting the efficiency of the system.
Based on the above principle, a multi-channel co-phased dielectric resonator antenna is provided in this embodiment. A side view of a multi-channel co-centered dielectric resonator antenna is shown in fig. 1. Referring to fig. 1, the multi-channel co-centered dielectric resonator antenna includes a floor 100, a dielectric radiator 200, and a plurality of feed probes. The floor panel 100 may be a flat panel made of a metal material. A dielectric radiator 200 is installed on one side (the side facing upward in fig. 1) of the floor panel 100.
A top view of the multi-channel co-centered dielectric resonator antenna is shown in fig. 2, as seen from above in fig. 1. Referring to fig. 2, the horizontal cross section of the dielectric radiator 200, that is, the cross section parallel to the floor panel 100 has symmetry, and may be an axisymmetric shape having a plurality of symmetry axes or a centrally symmetric shape. For example, the shape of the horizontal cross section of the dielectric radiator 200 in fig. 2 is rectangular, having both "axisymmetric with multiple symmetry axes" and "centrosymmetric" properties, and may be other shapes having both "axisymmetric with multiple symmetry axes" and "centrosymmetric" properties.
After passing through the floor 100, the feed probe may contact the dielectric radiator 200 by penetrating into the inside of the dielectric radiator 200 or by being attached to a side of the dielectric radiator 200. Referring to fig. 1 and 2, a case where a feed probe penetrates through the floor 100 and penetrates into the inside of a dielectric radiator 200 is illustrated. One end of the feeding probe is left inside the dielectric radiator 200, and the other end is exposed to the other side of the floor 100 to connect the feeding coaxial line or other transmission line to receive the feeding.
Referring to fig. 2, in the case where the shape of the horizontal cross section is an axisymmetric shape, the position of each feed probe in the horizontal cross section is located on the symmetry axis of the horizontal cross section, and the position of each feed probe is equidistant from the geometric center of the horizontal cross section (e.g., the intersection of the symmetry axes). In the case where the shape of the horizontal cross section is a center-symmetrical shape, the position of each feed probe in the horizontal cross section is center-symmetrical with respect to the rotation center of the horizontal cross section, and the position of each feed probe is equidistant from the geometric center (e.g., rotation center) of the horizontal cross section.
In this embodiment, referring to fig. 1 and 2, four feed probes 301, 302, 303, and 304 may be provided, each of which serves as one channel of the multi-channel co-phased dielectric resonator antenna, thereby forming four channels of C1, C2, C3, and C4.
In this embodiment, the dielectric radiator 200 may be a single body and may have the structure shown in fig. 3. Referring to fig. 3, the dielectric radiator is composed of a plurality of dielectric radiating elements adjacent to each other. Wherein the distance between two adjacent dielectric radiation units may be 1mm-10mm. The number of dielectric radiating elements is the same as the number of feed probes such that each feed probe has a corresponding dielectric radiating element. For example, in fig. 3, in the case where four feed probes 301, 302, 303, and 304 are provided, four dielectric radiation units 201, 202, 203, and 204 are provided, each of which is penetrated into the inside by a corresponding feed probe. For example, 201 penetrates into 201, 202 penetrates into 202, 203 penetrates into 203, and 204 penetrates into 204.
In this embodiment, the working principle of the multi-channel co-phased dielectric resonator antenna shown in fig. 1 and 2 is as follows: when multiple channels need to generate beams in the same direction to point to the same sector, because the multiple channels have certain sizes, the multiple channels can generate beams in different directions on the same lens in general, so that the multiple channels are positioned at the same focus, which is difficult to physically realize; in this embodiment, a solution is proposed in which a plurality of channels are integrated at one focal position of a pair of lenses, so that the above-mentioned problem related to the focal point is reduced to a problem in which the phase centers of the plurality of channels are coincident or very close; in the multi-channel co-phase center dielectric resonator antenna proposed in this embodiment, each feed probe corresponds to one channel in the antenna, and dielectric radiators 200 including multiple channels are close to each other or combined as a whole, so that the phase centers of the channels are close to each other to the physical center of the multi-channel co-phase center dielectric resonator antenna, realizing the performance of approximate co-phase center, and generating resonance to increase bandwidth; the multichannel co-phase center dielectric resonator antenna in the embodiment can be applied to a Multiple Input Multiple Output (MIMO) technology, so that the system capacity and the signal-to-noise ratio are improved.
In this embodiment, the multi-channel co-centered dielectric resonator antenna further includes a plurality of decoupling structures 400. Specifically, the decoupling structure 400 may be made of a metal material, and the decoupling structure 400 penetrates into the dielectric radiator 200 or is attached to a side surface of the dielectric radiator 200. Wherein the side of the dielectric radiator 200 is an outer surface perpendicular to the floor panel 100.
Fig. 4 and 5 show the penetration of the metallic decoupling structure 400 into the dielectric radiator 200. One end of the decoupling structure 400 is connected to the floor 100. Unlike the feed probe which has one end protruding beyond the other side of the floor 100, the decoupling structure 400 may be entirely inside the dielectric radiator 200 and not protrude through the floor 100 beyond the other side of the floor 100.
In this embodiment, referring to fig. 4 and 5, the feeding probes and the decoupling structures 400 are both bar-shaped structures, wherein the decoupling structures 400 may be specifically shaped like cylinders, bars, bends or gradients, and each feeding probe and each decoupling structure 400 are perpendicular to the floor 100, i.e., any two of the feeding probes and each decoupling structure 400 are parallel to each other.
In this embodiment, by setting the decoupling structure 400, near-field coupling between the feed probes can be suppressed, isolation between channels is improved, and efficiency of the multi-channel co-phase dielectric resonator antenna is improved.
In this embodiment, referring to fig. 5, the positions of the decoupling structures 400 corresponding to the horizontal cross section are symmetrically distributed in the horizontal cross section, and specifically, the positions of the decoupling structures 400 corresponding to the different decoupling structures may be in a central symmetrical relationship.
In particular, referring to fig. 6, all of the decoupling structures 400 may be divided into a plurality of structure groups, each of which contains the same number of decoupling structures 400. For any one of the structure groups, the corresponding position of the decoupling structure 400 in the horizontal section can be taken as a vertex, so that a contour is connected, and the first contour corresponding to the structure group is obtained. As shown in fig. 6, a total of 8 decoupling structures 400 are provided in the multi-channel co-centered dielectric resonator antenna, and the multi-channel co-centered dielectric resonator antenna can be divided into two structural groups, each of which includes 4 decoupling structures 400, so that each structural group corresponds to a rectangular first contour.
Referring to fig. 6, the second contour is obtained by connecting one contour with the corresponding positions of 301, 302, 303, and 304 in the horizontal section as vertices. The second profile is identical in shape to the first profile, and they are all rectangular in figure 6.
In this embodiment, referring to fig. 6, the centers of the second contour and the respective first contours coincide with the geometric center of the horizontal cross section. And all the first contours are contained and nested inside the second contours, and each first contour is nested in turn. The first profiles and the second profiles form corresponding rotation angle differences respectively, and the rotation angle differences are graded according to the sequence from outside to inside of the corresponding first profiles. Specifically, referring to fig. 6, from the second profile, the 1 st first profile and the second profile form a rotation angle difference of 90 ° inward one by one, that is, in the case of neglecting the size, the 1 st first profile corresponds to the second profile being rotated 90 ° clockwise; the 2 nd first contour and the 1 st first contour form a rotation angle difference of 90 degrees, namely, the 2 nd first contour is obtained by rotating the 1 st first contour clockwise by 90 degrees under the condition of neglecting the size. In case of having more decoupling structures 400 to form more first profiles, for example on the basis of the decoupling structures 400 shown in fig. 6, there are also 4 additional decoupling structures 400 to form a 3 rd first profile nested inside a 2 nd first profile, then the 3 rd first profile forms a 90 ° rotation angle difference with the 2 nd first profile, i.e. in case of neglecting the size, the 3 rd first profile corresponds to a clockwise rotation of the 2 nd first profile by 90 °.
In this embodiment, by arranging the respective metal decoupling structures 400 in a symmetrical distribution manner as shown in fig. 5 and 6, it is advantageous for the respective decoupling structures 400 to uniformly suppress near-field coupling between feed probes, maintaining symmetry between the channels.
In this embodiment, referring to fig. 4, 5 and 6, the multi-channel co-phased dielectric resonator antenna further includes a plurality of parasitic metal plates 500. The parasitic metal plate 500 is installed on one side of the floor panel 100, that is, the side on which the dielectric radiator 200 is located. In the present embodiment, each parasitic metal plate 500 corresponds to one feed probe, and for example, in the case where 4 feed probes are provided, 4 parasitic metal plates 500 may be provided. In this embodiment, each parasitic metal plate 500 is located on the outside of the dielectric radiator 200, i.e., on the side of the corresponding feed probe. Specifically, the parasitic metal plate 500 corresponding to one feed probe may be installed on an extension line from the geometric center of the horizontal section of the dielectric radiator 200 to the location of the feed probe.
In this embodiment, by adding the parasitic metal plate 500 on the outer side of each channel, the diffusion of the electromagnetic field can be limited, so that the phase center of each channel is further close to the physical center, thereby further reducing the difference of beam directions generated by different channels and enhancing the signal coverage of the same sector. Parasitic metal plates may also couple to the various channels, thereby creating resonance and thus increasing bandwidth.
In this embodiment, the cross-sectional shape of the parasitic metal plate 500 may be rectangular, triangular, circular, bent or graded, or a shape with a branch as shown in fig. 7. Among them, the use of the parasitic metal plate 500 with the dendrites is advantageous in enhancing the restriction of the electromagnetic field diffusion.
In this embodiment, the horizontal cross section of the dielectric radiator 200 may be circular as shown in fig. 8, cross-shaped as shown in fig. 9, or irregularly shaped as shown in fig. 10, in addition to the rectangular shape as shown in fig. 2. The parasitic metal plate 500 may also have a V-shape as shown in fig. 11. Instead of one parasitic metal plate 500 for each feed probe shown in fig. 7-11, more parasitic metal plates 500 may be provided as shown in fig. 12, such that each feed probe corresponds to multiple parasitic metal plates 500, respectively.
In this embodiment, referring to fig. 13, when the multi-channel co-centered dielectric resonator antenna is used, the multi-channel co-centered dielectric resonator antenna may be used as a feed antenna, and the multi-channel co-centered dielectric resonator antenna may be placed under the Long Bo lens 600, that is, the side on which the dielectric radiator 200 is located faces the Long Bo lens 600. Long Bo lens 600 can be affixed to the floor 100 so as to be part of a multi-channel co-phased dielectric resonator antenna.
In this embodiment, simulation verification is performed on the multi-channel co-phased dielectric resonator antenna shown in fig. 13, and the diameter of the Long Bo lens 600 is selected to be 0.3 m. During simulation, the distance between the phase center of each channel and the physical center can be reduced to 0.028 wavelength.
The simulation results in the antenna S parameters shown in fig. 14. Referring to fig. 14, |s 11 I is about-15 dB, indicating a good match. The isolation between the two channels C1 and C2 and the isolation between the two channels C1 and C3 are larger than 20dB. Because of the symmetrical structure, the isolation between the other channels is similar to that described above, so that it can be determined that different channels of the multi-channel co-phase center dielectric resonator antenna in this embodiment have good isolation.
Since the four channels C1, C2, C3 and C4 of the multi-channel co-centered dielectric resonator antenna in this embodiment are symmetrical, the radiation pattern resulting from the simulation of one of the channels is given here. Specifically, the H-plane radiation pattern of the channel is shown in fig. 15, and the E-plane radiation pattern is shown in fig. 16. Referring to fig. 15 and 16, the antenna gain is 14.7dBi, the maximum radiation direction of the radiation pattern can be seen to deviate from the axial direction in the E planezAxis) is only 1 degree, the difference between the maximum gain and the axial gain is only 0.02 dB; in the H plane, the maximum radiation direction is in the axial direction, exhibiting an almost completely symmetrical radiation pattern; both face cross polarizations are at a lower level. The main beams of the radiation patterns of the four channels C1, C2, C3 and C4 are almost identical, and the effective coverage of the same sector can be realized, so that the capacity improvement by using a pair of feed source antennas can be realized.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly or indirectly fixed or connected to the other feature. Further, the descriptions of the upper, lower, left, right, etc. used in this disclosure are merely with respect to the mutual positional relationship of the various components of this disclosure in the drawings. As used in this disclosure, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In addition, unless defined otherwise, all technical and scientific terms used in this example have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description of the embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used in this embodiment includes any combination of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could also be termed a second element, and, similarly, a second element could also be termed a first element, without departing from the scope of the present disclosure. The use of any and all examples, or exemplary language (e.g., "such as") provided herein, is intended merely to better illuminate embodiments of the invention and does not pose a limitation on the scope of the invention unless otherwise claimed.
The present invention is not limited to the above embodiments, but can be modified, equivalent, improved, etc. by the same means to achieve the technical effects of the present invention without departing from the spirit and principle of the present invention. Various modifications and variations are possible in the technical solution and/or in the embodiments within the scope of the invention.
Claims (6)
1. A multi-channel co-phased dielectric resonator antenna, the multi-channel co-phased dielectric resonator antenna comprising:
a floor;
a dielectric radiator; the medium radiator is arranged on one surface of the floor, and the horizontal section of the medium radiator is provided with a plurality of symmetrical shafts or is centrally symmetrical; wherein the horizontal section is a section parallel to the floor;
a plurality of feed probes; the feed probe penetrates through the floor and penetrates into the medium radiator, or is attached to the side face of the medium radiator; the position of each feed probe corresponding to the horizontal section is positioned on the symmetry axis of the horizontal section or is symmetrical about the rotation center of the horizontal section, and the distance between the feed probe and the geometric center of the horizontal section is equal;
a plurality of decoupling structures; the decoupling structure penetrates into the medium radiator or is attached to the side face of the medium radiator; wherein the side surface is an outer surface perpendicular to the floor; each feed probe and each decoupling structure are perpendicular to the floor;
the decoupling structures are symmetrically distributed in the horizontal section at positions corresponding to the horizontal section;
each decoupling structure belongs to a corresponding structure group respectively, so that a plurality of structure groups are formed;
the first contour and the second contour corresponding to each structure group have the same shape; the first contour is a contour formed by sequentially connecting positions of decoupling structures in the same structure group as vertexes, and the second contour is a contour formed by sequentially connecting positions of feed probes as vertexes;
the centers of the first contour and the second contour are coincident with the geometric center of the horizontal section;
each first contour is nested in sequence, and all the first contours are nested inside the second contour;
each first contour and each second contour form a corresponding rotation angle difference, and each rotation angle difference is graded according to the sequence from outside to inside of the corresponding first contour.
2. The multi-channel co-phased dielectric resonator antenna of claim 1, further comprising:
a plurality of parasitic metal plates; each parasitic metal plate corresponds to one feed probe; the parasitic metal plate is arranged on one surface of the floor and is positioned on the outer side of the medium radiator.
3. The multi-channel co-centered dielectric resonator antenna of claim 2 wherein the parasitic metal plate is located at a geometric center of the horizontal cross section and an extension of the corresponding feed probe.
4. The multi-channel co-phased dielectric resonator antenna of claim 2, wherein the parasitic metal plate is provided with a stub or the parasitic metal plate has a rectangular, triangular, circular or graded cross-sectional shape.
5. The multi-channel co-phased dielectric resonator antenna of claim 1, wherein:
the dielectric radiator comprises a plurality of dielectric radiating units;
the medium radiation units are close to each other;
each medium radiation unit corresponds to one feed probe respectively, and each medium radiation unit is penetrated into the interior by the corresponding feed probe respectively.
6. The multi-channel co-phased dielectric resonator antenna of any of claims 1-5, further comprising:
long Bo lenses; the Long Bo lens is positioned on one side of the dielectric radiator.
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| CN202311680698.1A CN117374599B (en) | 2023-12-08 | 2023-12-08 | Multichannel common-phase center dielectric resonator antenna |
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| CN202311680698.1A CN117374599B (en) | 2023-12-08 | 2023-12-08 | Multichannel common-phase center dielectric resonator antenna |
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| CN117374599B true CN117374599B (en) | 2024-04-02 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0877443A2 (en) * | 1997-05-09 | 1998-11-11 | Nippon Telegraph And Telephone Corporation | Antenna and manufacturing method therefor |
| WO2001031746A1 (en) * | 1999-10-29 | 2001-05-03 | Antenova Limited | Steerable-beam multiple-feed dielectric resonator antenna of various cross-sections |
| CN1498445A (en) * | 2000-03-11 | 2004-05-19 | ��˹��ŵ�� | Multi-section medium resonator antenna |
| CN112421248A (en) * | 2020-11-23 | 2021-02-26 | 西安电子科技大学 | Broadband low-profile circularly polarized microstrip antenna based on multimode resonance |
-
2023
- 2023-12-08 CN CN202311680698.1A patent/CN117374599B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0877443A2 (en) * | 1997-05-09 | 1998-11-11 | Nippon Telegraph And Telephone Corporation | Antenna and manufacturing method therefor |
| WO2001031746A1 (en) * | 1999-10-29 | 2001-05-03 | Antenova Limited | Steerable-beam multiple-feed dielectric resonator antenna of various cross-sections |
| CN1498445A (en) * | 2000-03-11 | 2004-05-19 | ��˹��ŵ�� | Multi-section medium resonator antenna |
| CN112421248A (en) * | 2020-11-23 | 2021-02-26 | 西安电子科技大学 | Broadband low-profile circularly polarized microstrip antenna based on multimode resonance |
Non-Patent Citations (1)
| Title |
|---|
| A Simple Decoupling Method for 5G Millimeter-Wave MIMO Dielectric Resonator Antennas;Yong Mei Pan等;《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》;第67卷(第4期);正文第2224-2228页，图1-9 * |
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| CN117374599A (en) | 2024-01-09 |
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