CN115548685A - Dielectric resonator antenna, design method thereof and communication equipment - Google Patents
Dielectric resonator antenna, design method thereof and communication equipment Download PDFInfo
- Publication number
- CN115548685A CN115548685A CN202211083263.4A CN202211083263A CN115548685A CN 115548685 A CN115548685 A CN 115548685A CN 202211083263 A CN202211083263 A CN 202211083263A CN 115548685 A CN115548685 A CN 115548685A
- Authority
- CN
- China
- Prior art keywords
- dielectric resonator
- field distribution
- size
- electric field
- magnetic field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000013461 design Methods 0.000 title claims abstract description 20
- 238000004891 communication Methods 0.000 title claims abstract description 16
- 238000010586 diagram Methods 0.000 claims abstract description 81
- 238000005520 cutting process Methods 0.000 claims abstract description 78
- 230000005684 electric field Effects 0.000 claims abstract description 74
- 230000005855 radiation Effects 0.000 claims abstract description 51
- 239000002184 metal Substances 0.000 claims description 36
- 239000000758 substrate Substances 0.000 claims description 17
- 230000000694 effects Effects 0.000 description 12
- 230000000191 radiation effect Effects 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a dielectric resonator antenna and a design method and communication equipment thereof.A mixed radiation mode is generated by adjusting the size of a cylindrical dielectric resonator, namely a magnetic field radiation mode and an electric field radiation mode are generated simultaneously, when the cylindrical dielectric resonator forms a symmetrical magnetic field distribution diagram and an electric field distribution diagram to record a corresponding first target size, a first symmetrical cutting position and a second symmetrical cutting position are obtained according to the symmetry of the magnetic field distribution diagram or the symmetry of the electric field distribution diagram, and the first target size is cut according to the first symmetrical cutting position and the second symmetrical cutting position to obtain a second target size, namely a small-size dielectric resonator is obtained, so that the dielectric resonator after being reduced in size and the dielectric resonator of the original size have consistent performance.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a dielectric resonator antenna, a design method thereof and communication equipment.
Background
With the development of light and thin smart devices such as mobile phones and tablets, the space for arranging communication antennas in the smart devices is continuously compressed. Meanwhile, with the rapid development and application of fifth generation mobile communication, the communication antenna needs to cover 5G frequency bands such as N257 (26.5-29.5 GHz), N258 (24.25-27.25 GHz), N260 (37-40 GHz), and the like. That is, the communication antenna not only needs to meet the requirement of small size, but also needs to meet the requirement of covering 5G frequency band, which leads to the increasing difficulty of the design of the communication antenna.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a dielectric resonator antenna, a method of designing the same, and a communication apparatus are provided, which can reduce the size of the dielectric resonator antenna without affecting other performances of the antenna.
In order to solve the technical problems, the invention adopts the technical scheme that:
a method of designing a dielectric resonator antenna, comprising the steps of:
determining an initial size of a cylindrical dielectric resonator, wherein the initial size enables the cylindrical dielectric resonator to generate a mixed radiation mode;
acquiring a magnetic field distribution diagram and an electric field distribution diagram of the cylindrical dielectric resonator on the bottom surface, adjusting the initial size according to the magnetic field distribution diagram and the electric field distribution diagram, and recording the current size and marking the current size as a first target size when the magnetic field distribution diagram and the electric field distribution diagram are symmetrical;
obtaining a first symmetric cutting position and a second symmetric cutting position according to the symmetry of the magnetic field distribution diagram or the symmetry of the electric field distribution diagram;
obtaining a second target size according to the first symmetrical cutting position and the second symmetrical cutting position;
and obtaining the design parameters of the small-size dielectric resonator according to the second target size.
In order to solve the technical problem, the invention adopts another technical scheme as follows:
a dielectric resonator is obtained by the design method of the dielectric resonator antenna.
In order to solve the technical problem, the invention adopts another technical scheme as follows:
a communication device comprises a dielectric resonator antenna obtained by the design method of the dielectric resonator antenna;
the feed metal, the metal sheet, the dielectric block and the substrate are included;
the dielectric block is a quarter of cylinder;
the dielectric block is arranged on one side of the substrate;
the feed metal is arranged between the dielectric block and the substrate;
the metal sheet is arranged on one side surface of the dielectric block, which is vertical to the substrate.
The invention has the beneficial effects that: the method comprises the steps that a mixed radiation mode is generated by adjusting the size of a cylindrical dielectric resonator, namely a magnetic field radiation mode and an electric field radiation mode are generated simultaneously, when the cylindrical dielectric resonator forms a symmetrical magnetic field distribution diagram and an electric field distribution diagram to record a corresponding first target size, a first symmetrical cutting position and a second symmetrical cutting position are obtained according to the symmetry of the magnetic field distribution diagram or the symmetry of the electric field distribution diagram, the first target size is cut according to the first symmetrical cutting position and the second symmetrical cutting position to obtain a second target size, and then the small-size dielectric resonator is obtained; the magnetic field distribution diagram and the electric field distribution diagram are symmetrical, so that the cylindrical dielectric resonator meets the mirror image principle, after the cylindrical dielectric resonator is reduced by half along the electric field or magnetic field symmetrical plane based on the mirror image principle, the performance of the semi-cylindrical dielectric resonator is equivalent to that of the cylindrical dielectric resonator before cutting, and the cut semi-cylindrical dielectric resonator meets the equivalent magnetic wall effect or the equivalent electric wall effect, so that the performance of the semi-cylindrical dielectric resonator can still be equivalent to that of the cylindrical dielectric resonator when the semi-volume is cut again at the second symmetrical cutting position, and the small-size dielectric resonator is obtained and has the radiation effect equivalent to that of the cylindrical dielectric resonator with the original volume.
Drawings
Fig. 1 is a flowchart illustrating steps of a method for designing a dielectric resonator antenna according to an embodiment of the present invention;
fig. 2 is a diagram illustrating electric field and magnetic field distribution of the XOY plane in the method for designing a dielectric resonator antenna according to an embodiment of the present invention;
fig. 3 is an electric field distribution diagram of a zo plane in a method for designing a dielectric resonator antenna according to an embodiment of the present invention;
fig. 4 illustrates a first symmetric cutting position and a second symmetric cutting position in a method for designing a dielectric resonator antenna according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a dielectric resonator antenna according to an embodiment of the present invention;
fig. 6 is a comparison graph of simulation results of S parameters of a dielectric resonator antenna and an original volume dielectric resonator antenna according to an embodiment of the present invention;
fig. 7 is a comparison graph of simulation results of directional diagrams of a dielectric resonator antenna and an original volume dielectric resonator antenna according to an embodiment of the present invention;
description of reference numerals:
1. a feed metal; 2. a metal sheet; 3. a dielectric block; 4. a substrate.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, a method for designing a dielectric resonator antenna includes the steps of:
determining an initial size of a cylindrical dielectric resonator, wherein the initial size enables the cylindrical dielectric resonator to generate a mixed radiation mode;
acquiring a magnetic field distribution diagram and an electric field distribution diagram of the cylindrical dielectric resonator on the bottom surface, adjusting the initial size according to the magnetic field distribution diagram and the electric field distribution diagram, and recording the current size and marking the current size as a first target size when the magnetic field distribution diagram and the electric field distribution diagram are symmetrical;
obtaining a first symmetric cutting position and a second symmetric cutting position according to the symmetry of the magnetic field distribution diagram or the symmetry of the electric field distribution diagram;
obtaining a second target size according to the first symmetrical cutting position and the second symmetrical cutting position;
and obtaining the design parameters of the small-size dielectric resonator according to the second target size.
As can be seen from the above description, the beneficial effects of the present invention are: the method comprises the steps that a mixed radiation mode is generated by adjusting the size of a cylindrical dielectric resonator, namely a magnetic field radiation mode and an electric field radiation mode are generated simultaneously, when the cylindrical dielectric resonator forms a symmetrical magnetic field distribution diagram and an electric field distribution diagram to record a corresponding first target size, a first symmetrical cutting position and a second symmetrical cutting position are obtained according to the symmetry of the magnetic field distribution diagram or the symmetry of the electric field distribution diagram, the first target size is cut according to the first symmetrical cutting position and the second symmetrical cutting position to obtain a second target size, and then the small-size dielectric resonator is obtained; because the magnetic field distribution diagram and the electric field distribution diagram are symmetrical, the cylindrical dielectric resonator meets the mirror image principle, after the cylindrical dielectric resonator is reduced by half along the electric field or magnetic field symmetrical plane based on the mirror image principle, the performance of the semi-cylindrical dielectric resonator is equivalent to that of the cylindrical dielectric resonator before cutting, and the cut semi-cylindrical dielectric resonator meets the equivalent magnetic wall effect or equivalent electric wall effect, so that the performance of the cylindrical dielectric resonator can still be equivalent to that of the cylindrical dielectric resonator when a half volume is cut again at the second symmetrical cutting position, and the small-size dielectric resonator is obtained and has the radiation effect equivalent to that of the cylindrical dielectric resonator with the original volume.
Further, the determining the initial size of the cylindrical dielectric resonator comprises:
acquiring a mixed radiation mode constraint condition;
and adjusting the initial size according to the constraint condition of the mixed radiation mode to enable the cylindrical dielectric resonator to generate the mixed radiation mode.
As can be seen from the above description, the hybrid radiation mode constraint condition is used to perform constraint in the process of adjusting the size of the cylindrical dielectric resonator, so that the cylindrical dielectric resonator can effectively generate the hybrid radiation mode, and the design condition is satisfied.
Further, the hybrid radiation pattern constraints include:
wherein, F 0 The working frequency of the cylindrical dielectric resonator, C is the speed of light, a is the radius of the cylindrical dielectric resonator, h is the height of the cylindrical dielectric resonator, and DK is the dielectric constant of the cylindrical dielectric resonator.
From the above description, the half-diameter size and the height size of the cylindrical dielectric resonator meeting the design requirements can be quickly matched based on the given mixed radiation mode constraint condition, and the design efficiency is improved.
Further, the obtaining a first symmetric cutting position and a second symmetric cutting position according to the symmetry of the magnetic field distribution diagram or the symmetry of the electric field distribution diagram includes:
acquiring radiation electric field energy and radiation magnetic field energy of the cylindrical dielectric resonator;
and acquiring the symmetry of the magnetic field distribution diagram or the symmetry of the electric field distribution diagram according to the ratio of the radiation electric field energy to the radiation magnetic field energy.
As can be seen from the above description, by obtaining the radiated electric field energy and the radiated magnetic field energy of the cylindrical dielectric resonator and determining the main radiation type of the cylindrical dielectric resonator according to the ratio of the radiated electric field energy to the radiated magnetic field energy, the first symmetric cutting position and the second symmetric cutting position can be obtained according to the main radiation type of the cylindrical dielectric resonator by selecting the symmetry of the magnetic field distribution diagram or the symmetry of the electric field distribution diagram, so as to achieve the optimal performance equivalent effect.
Further, the obtaining a first symmetric cutting position and a second symmetric cutting position according to the symmetry of the magnetic field distribution diagram or the symmetry of the electric field distribution diagram includes:
and if the radiated electric field energy is less than the radiated magnetic field energy and the cylindrical dielectric resonator has high dielectric constant, obtaining a first symmetric cutting position and a second symmetric cutting position according to the symmetry of the magnetic field distribution diagram.
From the above description, when the radiated electric field energy is smaller than the radiated magnetic field energy, that is, the main radiation type of the cylindrical dielectric resonator is magnetic field radiation, the first symmetric cutting position and the second symmetric cutting position are obtained according to the symmetry of the magnetic field distribution diagram, so that the cut half-cylindrical dielectric resonator can exert the best equivalent effect.
Further, the obtaining a first symmetric cutting position and a second symmetric cutting position according to the symmetry of the magnetic field distribution diagram or the symmetry of the electric field distribution diagram includes:
and if the energy of the radiated electric field is greater than the energy of the radiated magnetic field, obtaining a first symmetric cutting position and a second symmetric cutting position according to the symmetry of the electric field distribution diagram.
From the above description, when the radiated electric field energy is greater than the radiated magnetic field energy, that is, the main radiation type of the cylindrical dielectric resonator is electric field radiation, the first symmetric cutting position and the second symmetric cutting position are obtained according to the symmetry of the electric field distribution diagram, so that the cut half-cylindrical dielectric resonator can exert the best equivalent effect.
Further, after obtaining the first symmetric cutting position and the second symmetric cutting position according to the symmetry of the electric field distribution diagram, the method further includes:
obtaining a metal sheet setting area according to the second symmetrical cutting position;
obtaining the design parameters of the small-size dielectric resonator according to the second target size further comprises:
and obtaining the small-size dielectric resonator according to the second target size and the metal sheet setting area.
As can be seen from the above description, by providing the metal sheet on the cut surface of the small-sized dielectric resonator, the corresponding cut surface satisfies the electrical wall effect, and an effective equivalent effect is formed.
Further, after the obtaining of the small-sized dielectric resonator, the method further includes:
obtaining impedance matching parameters according to the small-size dielectric resonator;
and obtaining the feed metal size matched with the small-size dielectric resonator according to the impedance matching parameters.
According to the description, the impedance matching parameters are obtained according to the small-size dielectric resonator, the size of the feed metal is adjusted according to the impedance matching parameters, and the radiation performance of the small-size dielectric resonator is guaranteed.
Another embodiment of the present invention provides a dielectric resonator, which is obtained by the above method for designing a dielectric resonator antenna;
the feed metal, the metal sheet, the dielectric block and the substrate are included;
the dielectric block is a quarter of cylinder;
the dielectric block is arranged on one side of the substrate;
the feed metal is arranged between the dielectric block and the substrate;
the metal sheet is arranged on one side surface of the dielectric block, which is vertical to the substrate.
Another embodiment of the present invention provides a communication device including a dielectric resonator antenna obtained by the above-described method for designing a dielectric resonator antenna.
The dielectric resonator antenna, the design method thereof and the communication device of the present invention can be applied to the design of a cylindrical dielectric resonator antenna, and the following description is made by specific embodiments:
example one
Referring to fig. 1, a method for designing a dielectric resonator antenna includes the steps of:
s1, determining an initial size of a cylindrical dielectric resonator, wherein the initial size enables the cylindrical dielectric resonator to generate a mixed radiation mode, namely a mixed mode of an HEM (namely a mixed mode of a TM mode and a TE mode), specifically:
s11, acquiring constraint conditions of mixed radiation modes, and using HEM 11 For example, the hybrid radiation mode constraint condition includes:
wherein, F 0 The working frequency of the cylindrical dielectric resonator, C is the speed of light, a is the radius of the cylindrical dielectric resonator, h is the height of the cylindrical dielectric resonator, and DK is the dielectric constant of the cylindrical dielectric resonator;
s12, adjusting the initial size according to the constraint condition of the mixed radiation mode to enable the cylindrical dielectric resonator to generate the mixed radiation mode; in an alternative embodiment, the step S1 is performed in simulation software; obtaining the initial size of the cylinder according to the existing radiation effect requirement;
s2, acquiring a magnetic field distribution diagram and an electric field distribution diagram of the cylindrical dielectric resonator on the bottom surface, adjusting the initial size according to the magnetic field distribution diagram and the electric field distribution diagram, and recording the current size and marking the current size as a first target size when the magnetic field distribution diagram and the electric field distribution diagram are symmetrical;
referring to fig. 2, the magnetic field distribution and the electric field distribution generated by the cylindrical dielectric resonator on the XOY plane are symmetrical; referring to fig. 3, the electric field distribution generated by the cylindrical dielectric resonator on the ZOY plane is symmetric with respect to the central axis of the cylindrical dielectric resonator, so that when the size of the cylindrical dielectric resonator is 1.27mm high and 1.8mm half-height, the corresponding size is recorded as the first target size;
s3, obtaining a first symmetric cutting position and a second symmetric cutting position according to the symmetry of the magnetic field distribution diagram or the symmetry of the electric field distribution diagram, specifically:
s31, acquiring the radiant electric field energy and the radiant magnetic field energy of the cylindrical dielectric resonator;
s32, obtaining the symmetry of the magnetic field distribution diagram or the symmetry of the electric field distribution diagram according to the ratio of the radiation electric field energy to the radiation magnetic field energy;
if the radiated electric field energy is less than the radiated magnetic field energy and the cylindrical dielectric resonator has a high dielectric constant, obtaining a first symmetric cutting position and a second symmetric cutting position according to the symmetry of the magnetic field distribution diagram; the dielectric resonator which takes a magnetic field as main radiation can be reduced by half by placing the dielectric resonator on an ideal magnetic wall; the cylindrical dielectric resonator has high dielectric constant, so the corresponding cutting surface also has high dielectric constant and can be equivalent to a magnetic wall;
if the energy of the radiated electric field is larger than the energy of the radiated magnetic field, a first symmetric cutting position and a second symmetric cutting position are obtained according to the symmetry of the electric field distribution diagram; namely, the dielectric resonator which takes an electric field as main radiation can be reduced by half by placing the dielectric resonator on an ideal electric wall;
referring to fig. 4, taking the example that the radiated electric field energy is greater than the radiated magnetic field energy as an example, it can be seen from fig. 3 that the electric field energy is mainly distributed on the ZOY plane, and therefore, the cutting along the symmetrical position of the ZOX plane can achieve equivalent radiation, that is, the central axis of the ZOY plane is the first symmetrical cutting position; simulating a cutting process to obtain the cylindrical dielectric resonator with the volume of 1/2; further, according to the electric wall principle, the field of any antenna on an ideal metal wall is symmetrical about the metal wall, namely the symmetrical axis of the cylindrical dielectric resonator with 1/2 volume is the second symmetrical cutting position, the cylindrical dielectric resonator with 1/4 volume is obtained through the simulated cutting process, and as the dielectric resonator block is a non-metallic substance, a metal sheet needs to be arranged on the second symmetrical cutting position to enable the metal sheet to be equivalent to the ideal metal wall; namely, a metal sheet setting area, namely a metal sheet setting area with the length of 1.27mm and the width of 0.9mm, is obtained according to the second symmetrical cutting position;
s4, obtaining a second target size according to the first symmetrical cutting position and the second symmetrical cutting position;
obtaining the corresponding cylindrical dielectric resonator with the second target size of 0.9mm in half diameter and 1/4 of the volume of 1.27mm in height;
s5, obtaining design parameters of the small-size dielectric resonator according to the second target size;
obtaining a small-size dielectric resonator according to the second target size and the metal sheet setting area, namely obtaining the small-size dielectric resonator based on the second target size of 0.9mm in half warp and 1.27mm in height, and the metal sheet setting area;
wherein, the method for obtaining the small-size dielectric resonator further comprises the following steps: s6, impedance matching; and obtaining impedance matching parameters according to the small-size dielectric resonator, and obtaining the feed metal size matched with the small-size dielectric resonator according to the impedance matching parameters.
Example two
The embodiment is a dielectric resonator antenna structure obtained based on the design method in the first embodiment;
referring to fig. 5, a dielectric resonator includes a feeding metal 1, a metal plate 2, a dielectric block 3 and a substrate 4; the dielectric block is a quarter of cylinder; the dielectric block 3 is arranged on one side of the substrate 4; the feed metal 1 is arranged between the dielectric block 3 and the substrate 4; the metal sheet 2 is arranged on one side surface of the dielectric block 3 perpendicular to the substrate 4;
the dielectric resonator in this embodiment and the dielectric resonator of the original volume are subjected to simulation testing (both are tested under the optimal impedance antenna), and the simulation results are shown in fig. 6 and 7; as can be seen from fig. 6, the S parameter of the reduced-volume dielectric resonator antenna (i.e., the dielectric resonator in this embodiment) substantially coincides with the S parameter of the original-volume dielectric resonator, which indicates that the S parameter performance of the antenna before and after the volume reduction is substantially the same;
as can be seen from fig. 6, the pattern of the dielectric resonator in the embodiment is substantially identical to the pattern of the original volume dielectric resonator, and the gains of both are in the range of-15.9 dBi, that is, the pattern and the gain of the antenna before and after the volume reduction are substantially identical; therefore, the performance of the antenna is consistent before and after the volume is reduced.
EXAMPLE III
A communication device comprising the dielectric resonator antenna in the second embodiment.
In summary, according to the dielectric resonator antenna, the design method thereof and the communication device provided by the present invention, the size of the cylindrical dielectric resonator is adjusted to generate the hybrid radiation mode, that is, the magnetic field radiation mode and the electric field radiation mode are generated simultaneously, when the cylindrical dielectric resonator forms a symmetrical magnetic field distribution diagram and an electric field distribution diagram to record the corresponding first target size, the first symmetrical cutting position and the second symmetrical cutting position are obtained according to the symmetry of the magnetic field distribution diagram or the symmetry of the electric field distribution diagram, and the first target size is cut according to the first symmetrical cutting position and the second symmetrical cutting position to obtain the second target size, that is, the small-size dielectric resonator is obtained; the magnetic field distribution diagram and the electric field distribution diagram are symmetrical, so that the cylindrical dielectric resonator meets the mirror image principle, after the cylindrical dielectric resonator is reduced by half along the electric field or magnetic field symmetrical plane based on the mirror image principle, the performance of the semi-cylindrical dielectric resonator is equivalent to that of the cylindrical dielectric resonator before cutting, and the cut semi-cylindrical dielectric resonator meets the equivalent magnetic wall effect or the equivalent electric wall effect, so that the performance of the semi-cylindrical dielectric resonator can still be equivalent to that of the cylindrical dielectric resonator when the semi-volume is cut again at the second symmetrical cutting position, and the small-size dielectric resonator is obtained and has the radiation effect equivalent to that of the cylindrical dielectric resonator with the original volume. The size of the dielectric resonator antenna is reduced, and the original performance of the dielectric resonator antenna is not changed, so that the dielectric resonator with the reduced volume and the dielectric resonator with the original volume have the same performance.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method of designing a dielectric resonator antenna, comprising the steps of:
determining an initial size of a cylindrical dielectric resonator, wherein the initial size enables the cylindrical dielectric resonator to generate a mixed radiation mode;
acquiring a magnetic field distribution diagram and an electric field distribution diagram of the cylindrical dielectric resonator on the bottom surface, adjusting the initial size according to the magnetic field distribution diagram and the electric field distribution diagram, and recording the current size and marking the current size as a first target size when the magnetic field distribution diagram and the electric field distribution diagram are symmetrical;
obtaining a first symmetric cutting position and a second symmetric cutting position according to the symmetry of the magnetic field distribution diagram or the symmetry of the electric field distribution diagram;
obtaining a second target size according to the first symmetrical cutting position and the second symmetrical cutting position;
and obtaining the design parameters of the small-size dielectric resonator according to the second target size.
2. The method of claim 1, wherein the determining the initial size of the cylindrical dielectric resonator comprises:
acquiring a mixed radiation mode constraint condition;
and adjusting the initial size according to the constraint condition of the mixed radiation mode to enable the cylindrical dielectric resonator to generate the mixed radiation mode.
3. The method of claim 2, wherein the hybrid radiation mode constraints comprise:
wherein, F 0 The working frequency of the cylindrical dielectric resonator, C, a, h and DK are the light speed, the radius, the height and the dielectric constant of the cylindrical dielectric resonator, and the radius, the height and the dielectric constant of the cylindrical dielectric resonator.
4. The method of claim 1, wherein the obtaining a first symmetric cut position and a second symmetric cut position according to the symmetry of the magnetic field distribution pattern or the symmetry of the electric field distribution pattern comprises:
acquiring radiation electric field energy and radiation magnetic field energy of the cylindrical dielectric resonator;
and acquiring the symmetry of the magnetic field distribution diagram or the symmetry of the electric field distribution diagram according to the ratio of the radiation electric field energy to the radiation magnetic field energy.
5. The method of claim 4, wherein the obtaining the first symmetric cut position and the second symmetric cut position according to the symmetry of the magnetic field distribution pattern or the symmetry of the electric field distribution pattern comprises:
and if the radiated electric field energy is less than the radiated magnetic field energy and the cylindrical dielectric resonator has high dielectric constant, obtaining a first symmetric cutting position and a second symmetric cutting position according to the symmetry of the magnetic field distribution diagram.
6. The method of claim 4, wherein the obtaining a first symmetric cut position and a second symmetric cut position according to the symmetry of the magnetic field distribution pattern or the symmetry of the electric field distribution pattern comprises:
and if the energy of the radiated electric field is greater than the energy of the radiated magnetic field, obtaining a first symmetric cutting position and a second symmetric cutting position according to the symmetry of the electric field distribution diagram.
7. The method of claim 6, wherein the obtaining the first symmetric cutting position and the second symmetric cutting position according to the symmetry of the electric field distribution pattern further comprises:
obtaining a metal sheet setting area according to the second symmetrical cutting position;
obtaining the design parameters of the small-size dielectric resonator according to the second target size further comprises:
and obtaining the small-size dielectric resonator according to the second target size and the metal sheet setting area.
8. The method for designing a dielectric resonator antenna according to claim 1, wherein the step of obtaining a small-sized dielectric resonator further comprises:
obtaining impedance matching parameters according to the small-size dielectric resonator;
and obtaining the feed metal size matched with the small-size dielectric resonator according to the impedance matching parameters.
9. A dielectric resonator obtained by the method for designing a dielectric resonator antenna according to any one of claims 1 to 8;
the feed metal, the metal sheet, the dielectric block and the substrate are included;
the dielectric block is a quarter of cylinder;
the dielectric block is arranged on one side of the substrate;
the feed metal is arranged between the dielectric block and the substrate;
the metal sheet is arranged on one side surface of the dielectric block, which is vertical to the substrate.
10. A communication apparatus comprising a dielectric resonator antenna obtained by the method for designing a dielectric resonator antenna according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211083263.4A CN115548685A (en) | 2022-09-06 | 2022-09-06 | Dielectric resonator antenna, design method thereof and communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211083263.4A CN115548685A (en) | 2022-09-06 | 2022-09-06 | Dielectric resonator antenna, design method thereof and communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115548685A true CN115548685A (en) | 2022-12-30 |
Family
ID=84725464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211083263.4A Pending CN115548685A (en) | 2022-09-06 | 2022-09-06 | Dielectric resonator antenna, design method thereof and communication equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115548685A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6373441B1 (en) * | 1998-12-18 | 2002-04-16 | U.S. Philips Corporation | Dielectric resonator antenna |
| US20190229424A1 (en) * | 2018-01-19 | 2019-07-25 | City University Of Hong Kong | Dielectric resonator antenna |
-
2022
- 2022-09-06 CN CN202211083263.4A patent/CN115548685A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6373441B1 (en) * | 1998-12-18 | 2002-04-16 | U.S. Philips Corporation | Dielectric resonator antenna |
| US20190229424A1 (en) * | 2018-01-19 | 2019-07-25 | City University Of Hong Kong | Dielectric resonator antenna |
Non-Patent Citations (2)
| Title |
|---|
| A. A. KISHK AND W. HUANG: "Size-Reduction Method for Dielectric-Resonator Antennas", IEEE ANTENNAS AND PROPAGATION MAGAZINE, vol. 53, no. 2, 30 April 2011 (2011-04-30), pages 26 - 38, XP011370177, DOI: 10.1109/MAP.2011.5949322 * |
| MONGIA, R.K. AND BHARTIA, P.: "Dielectric resonator antennas—a review and general design relations for resonant frequency and bandwidth.", INT. J. MICROW. MILL.-WAVE COMPUT.-AIDED ENG., 1 March 1994 (1994-03-01), pages 1 - 2 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lai et al. | Comparison of the radiation efficiency for the dielectric resonator antenna and the microstrip antenna at Ka band | |
| Deng et al. | TCM-based bezel antenna design with small ground clearance for mobile terminals | |
| KR20040093181A (en) | Dielectric resonator antenna | |
| El Halaoui et al. | Multiband planar inverted‐F antenna with independent operating bands control for mobile handset applications | |
| Zhang et al. | Compact wideband and low-profile antenna mountable on large metallic surfaces | |
| Mahamuni | Performance enhancement of microstrip patch antenna using metamaterial cover | |
| Wu et al. | A wideband dual-slot coupled multiple dense dielectric patch antenna | |
| Baharom et al. | Dual-element of high-SHF PIFA MIMO antenna for future 5G wireless communication devices | |
| Wei et al. | Actual deviation correction based on weight improvement for 10-unit Dolph–Chebyshev array antennas | |
| Jayasinghe et al. | Design of dual band patch antennas for cellular communications by genetic algorithm optimization | |
| CN115548685A (en) | Dielectric resonator antenna, design method thereof and communication equipment | |
| Alsawaf et al. | Rectangular and circular antennas design for Bluetooth applications | |
| Ren et al. | Design and Analysis of Tri-Band Conformal Monopolar Antenna | |
| CN215644985U (en) | Dielectric resonator-based antenna structure for increasing bandwidth and electronic equipment | |
| Gaya et al. | Ultra-wideband annular ring Fed rectangular dielectric resonator antenna for millimeter wave 5G applications | |
| CN109462012B (en) | Planar monopole antenna loaded with semicircular comb-shaped nested structure unit array | |
| CN113410617A (en) | Dielectric resonator-based antenna structure for increasing bandwidth and electronic equipment | |
| Ravikanti et al. | A novel and compact circularly polarized antenna for 5G wireless local area network application | |
| CN105514600A (en) | Carinal cavity gap circularly polarized antenna adopting half module substrate integrated waveguide | |
| Rao et al. | Offset fed broadband suspended plate antenna | |
| Singh et al. | Novel staircase microstrip antenna with L-shape slotted DGS for WLAN and WiMAX application | |
| Ranjan et al. | Segmented quarter cylindrical dielectric resonator antenna: Simulation and experimental investigation in composite form for wideband applications | |
| US7053855B2 (en) | Structure of 3D inverted F-antenna | |
| Sharma et al. | Small Size Broadband Printed Antenna for 5G Applications Covering 28 GHz/38 GHz and 60 GHz Bands | |
| El Halaoui et al. | Research Article Multiband Planar Inverted-F Antenna with Independent Operating Bands Control for Mobile Handset Applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |