CN116666977A - Multi-beam dielectric resonator end-fire antenna - Google Patents
Multi-beam dielectric resonator end-fire antenna Download PDFInfo
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- CN116666977A CN116666977A CN202310960634.0A CN202310960634A CN116666977A CN 116666977 A CN116666977 A CN 116666977A CN 202310960634 A CN202310960634 A CN 202310960634A CN 116666977 A CN116666977 A CN 116666977A
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- 238000010168 coupling process Methods 0.000 claims description 39
- 238000005859 coupling reaction Methods 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 22
- 230000005855 radiation Effects 0.000 abstract description 28
- 238000005388 cross polarization Methods 0.000 description 7
- 230000010287 polarization Effects 0.000 description 6
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- 238000004891 communication Methods 0.000 description 2
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- 238000004088 simulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/002—Antennas or antenna systems providing at least two radiating patterns providing at least two patterns of different beamwidth; Variable beamwidth antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/28—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the amplitude
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses an end-fire antenna of a multi-beam dielectric resonator, which comprises a dielectric substrate, a dielectric ceramic I, a dielectric ceramic II, a metal layer I and a metal layer II, wherein the dielectric ceramic I and the dielectric ceramic II are respectively arranged on two sides of the dielectric substrate, the metal layer I and the metal layer II are respectively arranged on two sides of the dielectric substrate, the metal layer I is connected with the dielectric ceramic I, the metal layer II is connected with the dielectric ceramic II, the dielectric ceramic I, the dielectric substrate and the dielectric ceramic II are connected through a stud, and nuts and screw caps are respectively arranged on two sides of the stud. The multi-beam end-fire antenna is realized in a single antenna mode of a dielectric resonator, and has the advantages of small size, simple structure, small loss in a millimeter wave frequency band, three-beam radiation, beam interval control, amplitude difference and beam width difference control, stable radiation pattern in a working frequency band and the like.
Description
Technical Field
The invention relates to the field of microwave communication, in particular to an end-fire antenna of a multi-beam dielectric resonator.
Background
An end-fire antenna is an antenna that receives or transmits signals along the direction of extension of the antenna, and the antenna structure is well compatible with the system ground. Common types are yagi antennas, vivaldi antennas, tapered slot antennas, planar quasi-yagi antennas, etc., the main radiation characteristics are single beam radiation, and antenna gain and directivity can be increased by stacking multiple directors or forming a gradually deforming radiator, but the antenna size is large and the beam coverage area is limited. Compared with a single-beam end-fire antenna, the multi-beam end-fire antenna can cover a plurality of areas, effectively overcomes multipath fading effect and interference effect, reduces power loss in unnecessary directions compared with a wide-beam end-fire antenna, and improves communication link quality. If a single end-fire antenna can realize multi-beam radiation, the number of the antennas and the corresponding interference can be properly reduced. Therefore, realizing multi-beam end-to-radiation of a single antenna has important scientific and engineering values, and controlling the interval, amplitude difference, beam width difference between multiple beams and stabilizing the radiation pattern in the whole working frequency band is a technical key point of the antenna.
At present, a plurality of multi-beam end-fire antennas are realized in a multi-antenna mode, and a plurality of single-antenna modes are realized. The multi-antenna mode for realizing the multi-beam end-fire antenna mainly has two main types: the multi-beam antenna comprises an array formed by a plurality of end-fire antenna units, and provides specific phases for all the antenna units through a Butler matrix, a phase shifting network and the like to realize multi-beam radiation; another type is to combine multiple single beam end-fire antennas, each of which covers one direction to form multi-beam radiation. The two types of multi-beam end-fire antennas can realize different beam numbers, but the problems of complex structure and large size caused by multi-antenna units or beam forming networks generally exist, and in addition, the loss of the beam forming networks greatly reduces the antenna efficiency.
The multi-beam end-to-radiation is realized in a single-antenna mode, mainly by introducing two parts of oblique electromagnetic metamaterial structures on the basis of a wide-beam end-to-end antenna, so that wide beams are changed into double beams, and two specific methods are adopted. The first is that two parts of electromagnetic metamaterial structures are symmetrically and vertically arranged in the front of the oblique direction of the traditional wide-beam end-fire antenna in a central symmetry mode, phases are respectively compensated according to paths in two directions, the two beams are gathered to successfully realize end-fire dual-beam radiation, but the problems of large plane size, high section, complex structure and the like exist, and only dual-beam radiation is realized. The second is that a plurality of groups of planar H-shaped periodic structures are respectively arranged on two sides of a radiator of a traditional wide-beam end-fire antenna, and the dual-beam end-fire is realized by utilizing the control capability of the periodic structures on TE mode surface waves. Meanwhile, the multi-beam end-fire antenna realized in a single antenna mode only forms double beams, and three-beam radiation is not realized; in the aspect of antenna types, the antenna is mainly a metal antenna, has higher conductor loss in a millimeter wave frequency band, and has a part of complex design structure and can not realize millimeter wave design. At present, a three-beam end-fire antenna based on a dielectric resonator has no relevant report, and a millimeter wave dielectric resonator end-fire antenna with small size, simple structure, low loss and three-beam radiation is necessarily designed by combining the problems.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides an end-fire antenna of a multi-beam dielectric resonator, which can reduce the size of the antenna, simplify the structure, reduce the conductor loss of millimeter wave frequency bands, solve the control problems of beam interval, amplitude difference and beam width difference when three beams radiate and solve the problem of stabilizing the radiation pattern in the whole working frequency band.
The technical scheme of the invention is realized as follows:
the utility model provides a multibeam dielectric resonator end-fire antenna, includes dielectric substrate, dielectric ceramic one, dielectric ceramic two, metal level one and metal level two, wherein, dielectric ceramic one with dielectric ceramic two set up respectively in the both sides of dielectric substrate, just metal level one with metal level two set up respectively in the both sides of dielectric substrate, metal level one with dielectric ceramic one is connected, metal level two with dielectric ceramic two is connected, just dielectric ceramic one dielectric substrate with pass through the double-screw bolt through connection between the dielectric ceramic two, just the both sides of double-screw bolt are provided with nut and screw cap respectively.
The first dielectric ceramic and the second dielectric ceramic are symmetrically arranged by taking the dielectric substrate as a central axis, and the first dielectric ceramic and the second dielectric ceramic are cross dielectric ceramics.
The middle part of the cross-shaped dielectric ceramic and the middle part of the dielectric substrate are respectively provided with a circular air hole, and the stud penetrates through the circular air holes to connect the first dielectric ceramic, the dielectric substrate and the second dielectric ceramic.
Optionally, the length of the cross-shaped dielectric ceramic is 0.87~0.91/>The method comprises the steps of carrying out a first treatment on the surface of the The width of the cross dielectric ceramic is 0.37 +.>~0.41/>The diameter of the circular air hole is 0.18 +.>~0.22/>The method comprises the steps of carrying out a first treatment on the surface of the The diameter of the nut is 0.29 +.>~0.33/>。
The first metal layer comprises a first metal strip, a stepped coplanar coupling line and a coplanar coupling line, wherein the first metal strip is connected with one short side of the cross-shaped dielectric ceramic, the wide side of the stepped coplanar coupling line is connected with the other short side of the cross-shaped dielectric ceramic, and the narrow side of the stepped coplanar coupling line is connected with the coplanar coupling line.
Optionally, the first metal strip has a horizontal length of 0.33~0.37/>The method comprises the steps of carrying out a first treatment on the surface of the The width of the metal strip I in the vertical direction is 0.16 +.>~0.2/>。
Optionally, the width of the wide side of the stepped coplanar coupling line is 0.16~0.2/>Length of wide side is 0.27~0.31/>The method comprises the steps of carrying out a first treatment on the surface of the The narrow side width of the ladder type coplanar coupling line is 0.049 +.>~0.053/>The method comprises the steps of carrying out a first treatment on the surface of the Narrow side length of 0.067~0.071/>The method comprises the steps of carrying out a first treatment on the surface of the The impedance of the narrow side of the stepped coplanar coupling line is 122-126 omega, and the impedance of the wide side is 93-97 omega.
Optionally, the length of the coplanar coupling line is 0.59~0.63/>The method comprises the steps of carrying out a first treatment on the surface of the And the impedance of the coplanar coupling line, the dielectric substrate and the metal ground forming the coupling microstrip line is 100 omega.
The second metal layer comprises a second metal strip and an arc-shaped metal ground, the second metal strip and the first metal strip are symmetrically arranged, the arc-shaped metal ground is positioned on one side of the medium substrate, and the straight edge of the arc-shaped metal ground is flush with the side edge of the medium substrate.
Optionally, the chord length of the arc-shaped metal ground is 1.12~1.16/>The chord height is 0.29 +.>~0.33/>。
The beneficial effects are that: compared with the prior art, the multi-beam end-fire antenna is realized in a dielectric resonator single antenna mode, and has the advantages of small size, simple structure, small loss in a millimeter wave frequency band, three-beam radiation, beam interval control, amplitude difference and beam width difference control, radiation pattern stabilization in a working frequency band and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic cross-sectional structure of an end-fire antenna of a multi-beam dielectric resonator according to an embodiment of the present invention;
fig. 2 is a schematic top view of an end-fire antenna of a multi-beam dielectric resonator according to an embodiment of the present invention;
fig. 3 is a schematic bottom view of an end-fire antenna of a multi-beam dielectric resonator according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a dielectric substrate according to an embodiment of the present invention;
fig. 5 is a graph of matching and gain simulation of an antenna according to an embodiment of the present invention;
FIG. 6 is a simulated pattern of principal polarization and cross polarization of the E-plane at 28.37GHz according to an embodiment of the invention;
FIG. 7 is a simulated pattern of principal polarization and cross polarization of the H-plane at 28.37GHz according to an embodiment of the invention;
FIG. 8 is a simulated pattern of principal polarization and cross polarization of the E-plane at 30.56GHz according to an embodiment of the invention;
FIG. 9 is a simulated pattern of principal polarization and cross polarization of the H-plane at 30.56GHz according to an embodiment of the invention;
FIG. 10 is a simulated pattern of principal polarization and cross polarization of the E-plane at 32.64GHz according to an embodiment of the invention;
fig. 11 is a simulated pattern of principal polarization and cross polarization of the H-plane at 32.64GHz according to an embodiment of the invention.
In the figure:
1. a dielectric substrate; 2. dielectric ceramic I; 3. dielectric ceramic II; 4. a first metal layer; 5. a second metal layer; 6. a circular air hole; 7. a stud; 8. a nut; 9. a screw cap; 10. a first metal strip; 11. step-type coplane coupling line; 12. coplanar coupling lines; 13. a second metal strip; 14. arc metal ground.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
According to an embodiment of the present invention, there is provided a multibeam dielectric resonator end-fire antenna.
As shown in fig. 1-4, the multi-beam dielectric resonator end-fire antenna according to the embodiment of the invention comprises a dielectric substrate 1, a dielectric ceramic 2, a dielectric ceramic 3, a metal layer 4 and a metal layer 5, wherein the dielectric ceramic 1 and the dielectric ceramic 3 are symmetrically arranged by taking the dielectric substrate 1 as a central axis, the dielectric ceramic 2 and the dielectric ceramic 3 are cross-shaped dielectric ceramics, circular air holes 6 are arranged in the middle of the cross-shaped dielectric ceramics and in the middle of the dielectric substrate 1, the metal layer 4 and the metal layer 5 are respectively arranged on two sides of the dielectric substrate 1, the metal layer 4 is connected with the dielectric ceramic 2, the second metal layer 5 is connected with the second dielectric ceramic 3, the first dielectric ceramic 2, the dielectric substrate 1 and the second dielectric ceramic 3 are connected through a stud 7 penetrating through the circular air hole 6, nuts 8 and screw caps 9 are respectively arranged on two sides of the stud 7, the first metal layer 4 comprises a first metal strip 10, a stepped coplanar coupling line 11 and a coplanar coupling line 12, the first metal strip 4 is connected with one short side of the cross dielectric ceramic, the wide side of the stepped coplanar coupling line 11 is connected with the other short side of the cross dielectric ceramic, and the narrow side of the stepped coplanar coupling line 11 is connected with the coplanar coupling line 12; the second metal layer 5 comprises a second metal strip 13 and an arc-shaped metal land 14, the second metal strip 13 and the first metal strip 10 are symmetrically arranged, the arc-shaped metal land 14 is positioned on one side of the medium substrate 1, and the straight edge of the arc-shaped metal land 14 is flush with the side edge of the medium substrate 1.
In specific application, the length of the cross dielectric ceramic is 0.87~0.91/>（/>A free space wavelength corresponding to the center frequency); the width of the cross dielectric ceramic is 0.37 +.>~0.41/>The diameter of the circular air hole 6 is 0.18 +.>~0.22/>The method comprises the steps of carrying out a first treatment on the surface of the The diameter of said nut 8 is 0.29 +.>~0.33/>. The length of the metal strip 10 in the horizontal direction is 0.33 +.>~0.37/>The method comprises the steps of carrying out a first treatment on the surface of the The width of the metal strip 10 in the vertical direction is 0.16 +.>~0.2/>. The width of the wide side of the stepped coplanar coupling line 11 is 0.16 +.>~0.2/>The length of the broad side is 0.27 +.>~0.31/>The method comprises the steps of carrying out a first treatment on the surface of the The width of the narrow side of the stepped coplanar coupling line 11 is 0.049 +.>~0.053/>The method comprises the steps of carrying out a first treatment on the surface of the The narrow side length is 0.067->~0.071/>The method comprises the steps of carrying out a first treatment on the surface of the The impedance of the narrow side of the stepped coplanar coupling line 11 is 122-126 omega, and the impedance of the wide side is 93-97 omega. The length of the coplanar coupling line 12 is 0.59 +.>~0.63/>The method comprises the steps of carrying out a first treatment on the surface of the And the impedance of the coplanar coupling line 12, the dielectric substrate 1 and the metal ground forming a coupling microstrip line is 100 omega. The chord length of the arc-shaped metal ground 14 is 1.12 +.>~1.16/>The chord height is 0.29 +.>~0.33。
When the antenna is specifically used, the coplanar coupling line 12, the dielectric substrate 1 and the arc-shaped metal ground 14 form a coupling microstrip line to serve as a feeder line feed-in signal of the antenna, the signal passes through the stepped coplanar coupling line 11 and excites a cross-shaped dielectric resonator formed by top cross-shaped dielectric ceramics, the dielectric substrate 1 and dielectric ceramics II 3 (cross-shaped dielectric ceramics), and three-beam end radiation is formed under the action of the metal strip I10 and the metal strip II 13.
In this process, a cross-shaped dielectric resonator is providedAn operating mode, but if provided by a common strip-shaped dielectric resonator>The mode cannot form a more ideal three-beam radiation pattern, mainly including a beam interval difference between three beams, a lack of control capability for a beam width difference and a gain difference of the three beams, and a lack of stability of a pattern in the whole matching frequency band. Therefore, in the invention, various structures act on the strip-shaped dielectric resonator to regulate and control the difference value of the beam width and the gain of the three beams, increase the interval between the beams and improve the stability of the directional diagram in the matching working frequency band.
The circular air hole 6 mainly has the effects of reducing the equivalent dielectric constant of the middle area of the horizontal plane of the dielectric resonator, and improving the horizontal electric field component in front of the center of the dielectric resonator, so that the horizontal electric field component and the horizontal electric field components on two sides in front of the dielectric resonator are counteracted and enhanced in a specific direction of the far field region, and therefore, the depth of a radiation zero point can be effectively enhanced, and the distance between three beams is improved. But the increase in beam spacing also results in a decrease in gain and beam width of the middle beam, which deteriorates the gain and beam width differences between the three beams.
Therefore, a director consisting of a first metal strip 10 and a second metal strip 13 needs to be added in front of the center of the dielectric resonator, and the length of the metal strips corresponds to the center part of the dielectric resonator. The horizontal component electric field on the director can regulate and control the corresponding directions of the two radiation zero points, so that the two radiation zero points move to two sides in a polar coordinate system, thereby improving the gain and the beam width of a central beam, reducing the gain and the beam width of beams at two sides and reducing the backward radiation of the whole antenna.
The vertical dielectric arms of the cross dielectric resonator are mainly used for further reducing the beam width of the beams at two sides, reducing the beam width difference among the three beams and stabilizing the radiation pattern in the whole matching frequency band. The arcuate metallic ground is primarily used to enhance the end-to-end radiation capability throughout the operating band. The symmetry of the dielectric resonator and director with respect to the dielectric substrate 1 is mainly used to ensure the symmetry of the H-plane radiation pattern. The plastic screw (comprising the nut 8, the screw rod 7 and the screw cover 9) mainly has the functions of installation and fixation, and has little influence on the characteristics of the dielectric resonator due to low dielectric constant, so the performance of the antenna is not basically influenced.
In order to further understand the above technical solutions of the present invention, the following details of the above technical solutions of the present invention will be described by way of design examples.
FIG. 5 is a graph of matching and gain simulation of an antenna; as can be seen from fig. 5, the operating band of this case covers 28.37-32.64 ghz, the relative bandwidth is 14%, and the maximum gain in the operating band is 6.54 dBi. Fig. 6-11 are simulated radiation patterns of the antenna at 28.37GHz, 30.56GHz and 32.64GHz, with the maximum gain difference of the three beams of the E-plane at the center frequency (30.56 GHz) being within 0.4dB, with beam orientations of 65 °, 0 ° and 295 °, respectively, and corresponding 3dB beam widths of 38 °, 29 ° and 38 °, respectively. The 3dB beamwidth for the H-plane is 89.3 deg., and the cross polarization level for the E-plane and H-plane is lower than-22 dB. From fig. 6-11, it can be seen that the three beam gain difference fluctuations of the E-plane are within 1dB throughout the operating band, and the half-power beamwidth fluctuations of the respective beams are less than 6 °, so that the three-beam radiation is relatively stable throughout the band. The radiation efficiency is higher than 96% throughout the operating band. The adopted dielectric substrate is RO4003C, the radiator is ER9.9 dielectric ceramic, and the end-fire direction size is only 0.9The transverse dimension is only 1.22 +.>。
In summary, by means of the above technical solution of the present invention, the circular air hole 6, the vertical dielectric arm (cross dielectric ceramic) and the metal directors (metal strip one 10 and metal strip two 13) are applied to the strip dielectric resonator, and the three are used to control the depth and direction of the radiation zero point, the beam width of the three beams, the gain of the three beams and the stability of the directional diagram in the frequency band, so as to realize the three-beam dielectric resonator end-fire antenna in the millimeter wave frequency band.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The utility model provides a multibeam dielectric resonator end-fire antenna, its characterized in that includes dielectric substrate (1), dielectric ceramic (2), dielectric ceramic (3), metal level one (4) and metal level two (5), wherein, dielectric ceramic (2) with dielectric ceramic two (3) set up respectively in the both sides of dielectric substrate (1), just metal level one (4) with metal level two (5) set up respectively in the both sides of dielectric substrate (1), metal level one (4) with dielectric ceramic one (2) is connected, metal level two (5) with dielectric ceramic two (3) are connected, just dielectric ceramic one (2) dielectric substrate (1) with dielectric ceramic two (3) between pass through stud (7) through connection, just the both sides of stud (7) are provided with nut (8) and spiral shell lid (9) respectively.
2. The multi-beam dielectric resonator end-fire antenna according to claim 1, wherein the dielectric ceramic one (2) and the dielectric ceramic two (3) are symmetrically arranged with the dielectric substrate (1) as a central axis, and the dielectric ceramic one (2) and the dielectric ceramic two (3) are both cross-shaped dielectric ceramics.
3. The multi-beam dielectric resonator end-fire antenna according to claim 1, wherein a circular air hole (6) is arranged in the middle of the cross dielectric ceramic and in the middle of the dielectric substrate (1), and the stud (7) penetrates through the circular air hole (6) to connect the dielectric ceramic one (2), the dielectric substrate (1) and the dielectric ceramic two (3).
4. The multi-beam dielectric resonator end-fire antenna of claim 3, wherein the length of the cross-shaped dielectric ceramic is 0.87~0.91/>The method comprises the steps of carrying out a first treatment on the surface of the The width of the cross dielectric ceramic is 0.37 +.>~0.41/>The diameter of the circular air hole (6) is 0.18 +.>~0.22/>The method comprises the steps of carrying out a first treatment on the surface of the The diameter of the nut (8) is 0.29 +.>~0.33/>。
5. A multi-beam dielectric resonator end-fire antenna according to claim 3, characterized in that the metal layer one (4) comprises a metal strip one (10), a stepped coplanar coupling line (11) and a coplanar coupling line (12), wherein the metal strip one (10) is connected to one short side of the cross-shaped dielectric ceramic, the broad side of the stepped coplanar coupling line (11) is connected to the other short side of the cross-shaped dielectric ceramic, and the narrow side of the stepped coplanar coupling line (11) is connected to the coplanar coupling line (12).
6. The multi-beam dielectric resonator end-fire antenna according to claim 5, wherein the length of the metal strip one (10) in the horizontal direction is 0.33~0.37/>The method comprises the steps of carrying out a first treatment on the surface of the The width of the metal strip I (10) in the vertical direction is 0.16 +.>~0.2/>。
7. The multi-beam dielectric resonator end-fire antenna according to claim 5, characterized in that the width of the broad side of the stepped coplanar coupling line (11) is 0.16~0.2/>The length of the broad side is 0.27 +.>~0.31/>The method comprises the steps of carrying out a first treatment on the surface of the The width of the narrow side of the ladder type coplanar coupling line (11) is 0.049 +.>~0.053/>The method comprises the steps of carrying out a first treatment on the surface of the The narrow side length is 0.067->~0.071/>The method comprises the steps of carrying out a first treatment on the surface of the The impedance of the narrow side of the stepped coplanar coupling line (11) is 122-126 omega, and the impedance of the wide side is 93-97 omega.
8. The multi-beam dielectric resonator end-fire antenna according to claim 5, characterized in that the length of the coplanar coupling line (12) is 0.59~0.63/>The method comprises the steps of carrying out a first treatment on the surface of the And the impedance of the coplanar coupling line (12) and the dielectric substrate (1) after the coplanar coupling line and the metal ground form a coupling microstrip line is 100 omega.
9. The multi-beam dielectric resonator end-fire antenna according to claim 5, wherein the second metal layer (5) comprises a second metal strip (13) and an arc-shaped metal ground (14), the second metal strip (13) and the first metal strip (10) are symmetrically arranged, the arc-shaped metal ground (14) is located on one side of the dielectric substrate (1), and the straight edge of the arc-shaped metal ground (14) is flush with the side edge of the dielectric substrate (1).
10. The multi-beam dielectric resonator end-fire antenna of claim 9, wherein said arcuate metallic ground (14) has a chord length of 1.12~1.16/>The chord height is 0.29 +.>~0.33/>。
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| CN106785460A (en) * | 2016-11-25 | 2017-05-31 | 南通大学 | A kind of differential bipolar medium resonator antenna |
| CN110957565A (en) * | 2019-11-26 | 2020-04-03 | 南京信息工程大学 | Broadband polarization reconfigurable high-gain antenna for 5G base station |
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| ATABAK RASHIDIAN 等: "《On the Matching of Microstrip-Fed Dielectric Resonator Antennas》", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》, vol. 61, no. 10 * |
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| CN116666977B (en) | 2023-10-31 |
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