CN113722777B - Antenna design method and terminal - Google Patents
Antenna design method and terminal Download PDFInfo
- Publication number
- CN113722777B CN113722777B CN202110789495.0A CN202110789495A CN113722777B CN 113722777 B CN113722777 B CN 113722777B CN 202110789495 A CN202110789495 A CN 202110789495A CN 113722777 B CN113722777 B CN 113722777B
- Authority
- CN
- China
- Prior art keywords
- rectangular dielectric
- order mode
- formula
- dielectric resonator
- preset
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
-
- 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
-
- 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
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Geometry (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Computational Mathematics (AREA)
- Waveguide Aerials (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses an antenna design method and a terminal, which are used for receiving a rectangular dielectric resonator antenna design request, wherein the design request comprises a preset size condition; determining a mode diagram based on a rectangular dielectric waveguide formula of the rectangular dielectric resonator according to the preset size condition; determining a first target intersecting higher-order mode and a second target intersecting higher-order mode according to the pattern diagram, and obtaining an intersection point of the first target intersecting higher-order mode and the second target intersecting higher-order mode; and obtaining initial size information of the rectangular dielectric resonator according to the intersection point, adjusting the initial size information based on a preset maximum bandwidth until the first target intersected higher-order mode and the second target intersected higher-order mode realize mode separation, obtaining final size information of the rectangular dielectric resonator corresponding to the preset maximum bandwidth, and designing the rectangular dielectric resonator antenna according to the final size information, so that the efficiency of designing the rectangular dielectric resonator antenna is improved.
Description
Technical Field
The present invention relates to the field of antenna technologies, and in particular, to an antenna design method and a terminal.
Background
As a research and development focus in the global industry, 5G (5 th-Generation, fifth Generation mobile communication technology) has become a common industry knowledge in developing 5G technology to formulate 5G standards. The international telecommunications union ITU defines three main application scenarios of 5G in the 22 nd conference of ITU-RWP5D held in month 6 of 2015: enhanced mobile broadband, large-scale machine communication, high reliability and low latency communication. The 3 application scenes respectively correspond to different key indexes, wherein the peak speed of the user in the enhanced mobile broadband scene is 20Gbps, and the minimum user experience rate is 100Mbps.
Because of the unique high carrier frequency and large bandwidth characteristics of millimeter waves, the antenna is a main means for realizing the 5G ultra-high data transmission rate, the EIRP (Equivalent Isotropically Radiated Power, equivalent omni-directional radiation power) of a radio frequency link is the sum of the antenna gain and the chip output gain, and under the condition that the EIRP meets the 3GPP standard, the output power of the chip can be reduced by the millimeter wave antenna with high gain, so that the chip has good heat dissipation.
In the prior art, a rectangular dielectric resonator is often used as a millimeter wave antenna, and how to rapidly design the rectangular dielectric resonator antenna, and meanwhile, the rectangular dielectric resonator antenna can meet the broadband and high gain performance, so that the rectangular dielectric resonator antenna becomes a problem to be solved.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the antenna design method and the terminal can improve the efficiency of designing the rectangular dielectric resonator antenna.
In order to solve the technical problems, the invention adopts a technical scheme that:
an antenna design method, comprising:
receiving a rectangular dielectric resonator antenna design request, wherein the design request comprises a preset size condition;
determining a mode diagram based on a rectangular dielectric waveguide formula of the rectangular dielectric resonator according to the preset size condition;
determining a first target intersecting higher-order mode and a second target intersecting higher-order mode according to the pattern diagram, and obtaining an intersection point of the first target intersecting higher-order mode and the second target intersecting higher-order mode;
and obtaining initial size information of the rectangular dielectric resonator according to the intersection point, adjusting the initial size information based on a preset maximum bandwidth until the first target intersected higher-order mode and the second target intersected higher-order mode realize mode separation, obtaining final size information of the rectangular dielectric resonator corresponding to the preset maximum bandwidth, and designing the rectangular dielectric resonator antenna according to the final size information.
In order to solve the technical problems, the invention adopts another technical scheme that:
an antenna design terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
receiving a rectangular dielectric resonator antenna design request, wherein the design request comprises a preset size condition;
determining a mode diagram based on a rectangular dielectric waveguide formula of the rectangular dielectric resonator according to the preset size condition;
determining a first target intersecting higher-order mode and a second target intersecting higher-order mode according to the pattern diagram, and obtaining an intersection point of the first target intersecting higher-order mode and the second target intersecting higher-order mode;
and obtaining initial size information of the rectangular dielectric resonator according to the intersection point, adjusting the initial size information based on a preset maximum bandwidth until the first target intersected higher-order mode and the second target intersected higher-order mode realize mode separation, obtaining final size information of the rectangular dielectric resonator corresponding to the preset maximum bandwidth, and designing the rectangular dielectric resonator antenna according to the final size information.
The invention has the beneficial effects that: the mode diagram is obtained through a rectangular dielectric waveguide formula based on the rectangular dielectric resonator, the intersecting high-order modes are subjected to mode separation based on the intersecting point of the intersecting high-order modes and the preset maximum bandwidth in the mode diagram, so that the maximum bandwidth of the antenna is searched, the final size information of the rectangular dielectric resonator corresponding to the antenna is determined, finally, the rectangular dielectric resonator antenna is designed according to the final size information, and the designed rectangular dielectric resonator antenna simultaneously meets the broadband and high-gain characteristics because the dielectric resonator antenna in the high-order mode is the high-gain antenna, and in addition, the size of the broadband high-gain antenna can be finally determined without continuous setting and simulation, so that the rapid design of the broadband and high-gain rectangular dielectric resonator antenna is realized, and the efficiency of designing the rectangular dielectric resonator antenna is improved.
Drawings
Fig. 1 is a flowchart illustrating steps of an antenna design method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an antenna design terminal according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an antenna design method according to an embodiment of the invention;
FIG. 4 is a schematic diagram of a rectangular dielectric resonator with an initial size in an antenna design method according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of mode separation in an antenna design method according to an embodiment of the present invention;
fig. 6 is a schematic diagram of S parameters of mode coincidence in the antenna design method according to the embodiment of the present invention;
FIG. 7 is a schematic diagram of a final size rectangular dielectric resonator in an antenna design method according to an embodiment of the present invention;
fig. 8 is a schematic diagram of S-parameters for mode separation in the antenna design method according to the embodiment of the invention;
fig. 9 is a gain diagram of a rectangular dielectric resonator antenna according to an embodiment of the invention.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention provides an antenna design method, including:
receiving a rectangular dielectric resonator antenna design request, wherein the design request comprises a preset size condition;
determining a mode diagram based on a rectangular dielectric waveguide formula of the rectangular dielectric resonator according to the preset size condition;
determining a first target intersecting higher-order mode and a second target intersecting higher-order mode according to the pattern diagram, and obtaining an intersection point of the first target intersecting higher-order mode and the second target intersecting higher-order mode;
and obtaining initial size information of the rectangular dielectric resonator according to the intersection point, adjusting the initial size information based on a preset maximum bandwidth until the first target intersected higher-order mode and the second target intersected higher-order mode realize mode separation, obtaining final size information of the rectangular dielectric resonator corresponding to the preset maximum bandwidth, and designing the rectangular dielectric resonator antenna according to the final size information.
From the above description, the beneficial effects of the invention are as follows: the mode diagram is obtained through a rectangular dielectric waveguide formula based on the rectangular dielectric resonator, the intersecting high-order modes are subjected to mode separation based on the intersecting point of the intersecting high-order modes and the preset maximum bandwidth in the mode diagram, so that the maximum bandwidth of the antenna is searched, the final size information of the rectangular dielectric resonator corresponding to the antenna is determined, finally, the rectangular dielectric resonator antenna is designed according to the final size information, and the designed rectangular dielectric resonator antenna simultaneously meets the broadband and high-gain characteristics because the dielectric resonator antenna in the high-order mode is the high-gain antenna, and in addition, the size of the broadband high-gain antenna can be finally determined without continuous setting and simulation, so that the rapid design of the broadband and high-gain rectangular dielectric resonator antenna is realized, and the efficiency of designing the rectangular dielectric resonator antenna is improved.
Further, the rectangular dielectric waveguide formula comprises a first formula and a second formula;
the determining the mode diagram based on the rectangular dielectric waveguide formula of the rectangular dielectric resonator according to the preset size condition comprises:
setting a preset dielectric constant of the rectangular dielectric resonator according to the design request;
deforming the first formula and the second formula to obtain a third formula;
determining a pattern diagram according to the third formula, the preset size condition and the preset dielectric constant;
the first formula is:
wherein k is x The wave number, k, representing the x-direction y The wavenumber, k, representing the y-direction z The wave number in the z direction is represented by a being the length of the rectangular dielectric resonator, b being the width of the rectangular dielectric resonator, d being the height of the rectangular dielectric resonator, n being TE nmp First number of modes, m is TE nmp Second number of modes, p is TE nmp A third number of modes;
the second formula is:
k x 2 +k y 2 +k z 2 ＝DK*k 0 2 ；
wherein DK represents the preset dielectric constant, k 0 Wavenumbers representing free space;
the third formula is:
from the above description, it can be seen that the two formulas of the rectangular dielectric waveguide are deformed to obtain a third formula, and a mode diagram is obtained according to the third formula, so that two higher-order modes intersected by the rectangular dielectric resonator can be quickly and effectively found based on the mode diagram.
Further, the pattern diagram comprises a plurality of curves corresponding to higher-order modes, wherein each curve corresponding to the higher-order mode represents k when b/d changes 0 A variation value of d;
determining a first target intersecting higher-order mode and a second target intersecting higher-order mode according to the mode diagram, and obtaining an intersection point of the first target intersecting higher-order mode and the second target intersecting higher-order mode comprises:
and selecting any pair of intersecting curves from the pattern diagram, determining a first target intersecting higher-order mode and a second target intersecting higher-order mode corresponding to the intersecting curves, and obtaining the intersection points of the intersecting curves.
As can be seen from the above description, the curve corresponding to each higher order mode in the pattern diagram shows k as b/d changes 0 d, determining a target intersecting higher-order mode through an intersecting curve, taking an intersecting point of the intersecting curve as a reference, and performing mode separation subsequently so as to find the maximum bandwidth of the antenna, so that the rectangular dielectric resonator antenna designed subsequently has broadband characteristics.
Further, the rectangular dielectric waveguide formula further includes a fourth formula;
the fourth formula is:
wherein c represents the speed of light, f 0 Representing the TE nmp The working frequency of the rectangular dielectric resonator in the mode, wherein lambda represents the wavelength;
the obtaining the initial size information of the rectangular dielectric resonator according to the intersection point comprises the following steps:
acquiring the value of b/d and the k corresponding to the intersection point according to the third formula 0 A value of d;
according to the value of b/d, k 0 And d, the preset size condition and the fourth formula to obtain the initial size information of the rectangular dielectric resonator.
From the above description, it can be seen that, based on the value of b/d, k 0 The value of d, the preset size condition and the fourth formula are used for obtaining the initial size information of the rectangular dielectric resonator, the size information of the rectangular dielectric resonator obtained by the rectangular dielectric waveguide formula is ideal, the size information needs to be optimized, mode separation is carried out based on the preset maximum bandwidth and according to the initial size information, the final size information corresponding to the preset maximum bandwidth is determined, and the antenna designed according to the final size information can achieve the effect of broadband dual mode.
Further, the design request further includes a first preset value and a second preset value;
the initial size information includes a plurality of side lengths;
the adjusting the initial size information based on the preset maximum bandwidth until the first target intersecting higher-order mode and the second target intersecting higher-order mode achieve mode separation includes:
acquiring the current bandwidth of the rectangular dielectric resonator;
and adjusting the side length corresponding to the first target intersecting higher-order mode according to a first preset value, and adjusting the side length corresponding to the second target intersecting higher-order mode according to a second preset value until the current bandwidth reaches a preset maximum bandwidth.
As can be seen from the above description, since different high-order modes correspond to different sides of the rectangular dielectric resonator, the side lengths corresponding to the target intersecting high-order modes are adjusted according to the preset value until the current bandwidth reaches the preset maximum bandwidth, so that mode separation is realized, and the initial size of the rectangular dielectric resonator can be optimized quickly and effectively.
Referring to fig. 2, another embodiment of the present invention provides an antenna design terminal, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the following steps when executing the computer program:
receiving a rectangular dielectric resonator antenna design request, wherein the design request comprises a preset size condition;
determining a mode diagram based on a rectangular dielectric waveguide formula of the rectangular dielectric resonator according to the preset size condition;
determining a first target intersecting higher-order mode and a second target intersecting higher-order mode according to the pattern diagram, and obtaining an intersection point of the first target intersecting higher-order mode and the second target intersecting higher-order mode;
and obtaining initial size information of the rectangular dielectric resonator according to the intersection point, adjusting the initial size information based on a preset maximum bandwidth until the first target intersected higher-order mode and the second target intersected higher-order mode realize mode separation, obtaining final size information of the rectangular dielectric resonator corresponding to the preset maximum bandwidth, and designing the rectangular dielectric resonator antenna according to the final size information.
From the above description, the beneficial effects of the invention are as follows: the mode diagram is obtained through a rectangular dielectric waveguide formula based on the rectangular dielectric resonator, the intersecting high-order modes are subjected to mode separation based on the intersecting point of the intersecting high-order modes and the preset maximum bandwidth in the mode diagram, so that the maximum bandwidth of the antenna is searched, the final size information of the rectangular dielectric resonator corresponding to the antenna is determined, finally, the rectangular dielectric resonator antenna is designed according to the final size information, and the designed rectangular dielectric resonator antenna simultaneously meets the broadband and high-gain characteristics because the dielectric resonator antenna in the high-order mode is the high-gain antenna, and in addition, the size of the broadband high-gain antenna can be finally determined without continuous setting and simulation, so that the rapid design of the broadband and high-gain rectangular dielectric resonator antenna is realized, and the efficiency of designing the rectangular dielectric resonator antenna is improved.
Further, the rectangular dielectric waveguide formula comprises a first formula and a second formula;
the determining the mode diagram based on the rectangular dielectric waveguide formula of the rectangular dielectric resonator according to the preset size condition comprises:
setting a preset dielectric constant of the rectangular dielectric resonator according to the design request;
deforming the first formula and the second formula to obtain a third formula;
determining a pattern diagram according to the third formula, the preset size condition and the preset dielectric constant;
the first formula is:
wherein k is x The wave number, k, representing the x-direction y The wavenumber, k, representing the y-direction z The wave number in the z direction is represented by a being the length of the rectangular dielectric resonator, b being the width of the rectangular dielectric resonator, d being the height of the rectangular dielectric resonator, n being TE nmp First number of modes, m is TE nmp Second number of modes, p is TE nmp A third number of modes;
the second formula is:
k x 2 +k y 2 +k z 2 ＝DK*k 0 2 ；
wherein DK represents the preset dielectric constant, k 0 Wavenumbers representing free space;
the third formula is:
from the above description, it can be seen that the two formulas of the rectangular dielectric waveguide are deformed to obtain a third formula, and a mode diagram is obtained according to the third formula, so that two higher-order modes intersected by the rectangular dielectric resonator can be quickly and effectively found based on the mode diagram.
Further, the pattern diagram comprises a plurality of curves corresponding to higher-order modes, wherein each curve corresponding to the higher-order mode represents k when b/d changes 0 A variation value of d;
determining a first target intersecting higher-order mode and a second target intersecting higher-order mode according to the mode diagram, and obtaining an intersection point of the first target intersecting higher-order mode and the second target intersecting higher-order mode comprises:
and selecting any pair of intersecting curves from the pattern diagram, determining a first target intersecting higher-order mode and a second target intersecting higher-order mode corresponding to the intersecting curves, and obtaining the intersection points of the intersecting curves.
As can be seen from the above description, the curve corresponding to each higher order mode in the pattern diagram shows k as b/d changes 0 d, determining a target intersecting higher-order mode through an intersecting curve, taking an intersecting point of the intersecting curve as a reference, and performing mode separation subsequently so as to find the maximum bandwidth of the antenna, so that the rectangular dielectric resonator antenna designed subsequently has broadband characteristics.
Further, the rectangular dielectric waveguide formula further includes a fourth formula;
the fourth formula is:
wherein c represents the speed of light, f 0 Representing the TE nmp The working frequency of the rectangular dielectric resonator in the mode, wherein lambda represents the wavelength;
the obtaining the initial size information of the rectangular dielectric resonator according to the intersection point comprises the following steps:
acquiring the value of b/d and the k corresponding to the intersection point according to the third formula 0 A value of d;
according to the value of b/d, k 0 And d, the preset size condition and the fourth formula to obtain the initial size information of the rectangular dielectric resonator.
From the above description, it can be seen that, based on the value of b/d, k 0 The value of d, the preset size condition and the fourth formula are used for obtaining the initial size information of the rectangular dielectric resonator, the size information of the rectangular dielectric resonator obtained by the rectangular dielectric waveguide formula is ideal, the size information needs to be optimized, mode separation is carried out based on the preset maximum bandwidth and according to the initial size information, the final size information corresponding to the preset maximum bandwidth is determined, and the antenna designed according to the final size information can achieve the effect of broadband dual mode.
Further, the design request further includes a first preset value and a second preset value;
the initial size information includes a plurality of side lengths;
the adjusting the initial size information based on the preset maximum bandwidth until the first target intersecting higher-order mode and the second target intersecting higher-order mode achieve mode separation includes:
acquiring the current bandwidth of the rectangular dielectric resonator;
and adjusting the side length corresponding to the first target intersecting higher-order mode according to a first preset value, and adjusting the side length corresponding to the second target intersecting higher-order mode according to a second preset value until the current bandwidth reaches a preset maximum bandwidth.
As can be seen from the above description, since different high-order modes correspond to different sides of the rectangular dielectric resonator, the side lengths corresponding to the target intersecting high-order modes are adjusted according to the preset value until the current bandwidth reaches the preset maximum bandwidth, so that mode separation is realized, and the initial size of the rectangular dielectric resonator can be optimized quickly and effectively.
The antenna design method and the terminal of the invention can be applied to the design of rectangular dielectric resonator antennas, and the following description is given by specific embodiments:
example 1
Referring to fig. 1 and 3, an antenna design method of the present embodiment includes:
s1, receiving a rectangular dielectric resonator antenna design request, wherein the design request comprises a preset size condition;
the preset size condition can be flexibly set according to practical situations, and in this embodiment, the preset size condition is that the length of the rectangular dielectric resonator is equal to the width, i.e. a=b;
s2, determining a mode diagram based on a rectangular dielectric waveguide formula of the rectangular dielectric resonator according to the preset size condition;
the rectangular dielectric waveguide formula comprises a first formula and a second formula;
the first formula is:
wherein k is x The wave number, k, representing the x-direction y The wavenumber, k, representing the y-direction z The wave number in the z direction is represented by a being the length of the rectangular dielectric resonator, b being the width of the rectangular dielectric resonator, d being the height of the rectangular dielectric resonator, n being TE nmp First number of modes, m is TE nmp Second number of modes, p is TE nmp A third number of modes;
the second formula is:
k x 2 +k y 2 +k z 2 ＝DK*k 0 2 ；
wherein DK represents the preset dielectric constant, k 0 Wavenumbers representing free space;
specifically, a preset dielectric constant of the rectangular dielectric resonator is set according to the design request;
deforming the first formula and the second formula to obtain a third formula;
determining a pattern diagram according to the third formula, the preset size condition and the preset dielectric constant;
wherein the third formula is:
since 2 mode curves intersect to form 2 modes when the dielectric resonator is a high order mode and a high DK, but the bandwidth is not too wide, since the bandwidth of a single mode and the high DK dielectric resonator is narrower, the use of 2 narrow-band high order modes does not form a particularly wide bandwidth, and therefore the preset dielectric constant does not exceed 30, the values of n, m and p are less than or equal to 3, and in this embodiment, the preset dielectric constant is 10;
the pattern diagram is shown in FIG. 3, and comprises a plurality of curves corresponding to higher-order modes, wherein each curve corresponding to the higher-order mode represents k when b/d changes 0 A variation value of d;
s3, determining a first target intersecting higher-order mode and a second target intersecting higher-order mode according to the mode diagram, and obtaining an intersection point of the first target intersecting higher-order mode and the second target intersecting higher-order mode;
specifically, any pair of intersecting curves is selected from the pattern diagram, a first target intersecting higher-order mode and a second target intersecting higher-order mode corresponding to the intersecting curves are determined, and the intersection point of the intersecting curves is obtained;
as shown in fig. 3, there are 3 pairs of intersecting curves, which are TE313 and TE115, TE115 and TE311, and TE311 and TE113, respectively, and a pair of intersecting curves is selected, in this embodiment, the pair of intersecting curves of TE311 and TE113 is selected, a corresponding first target intersecting higher-order mode is determined to be TE311, a second target intersecting higher-order mode is determined to be TE113, and an intersection point is obtained;
in another alternative embodiment, a pair of intersecting curves may be selected based on the target resonant mode;
s4, obtaining initial size information of the rectangular dielectric resonator according to the intersection point, adjusting the initial size information based on a preset maximum bandwidth until the first target intersecting higher-order mode and the second target intersecting higher-order mode are separated, obtaining final size information of the rectangular dielectric resonator corresponding to the preset maximum bandwidth, and designing the rectangular dielectric resonator antenna according to the final size information.
Example two
Referring to fig. 1 and 3-9, the present embodiment further describes how to determine the final size information of the antenna based on the first embodiment, specifically:
the rectangular dielectric waveguide formula further comprises a fourth formula;
the fourth formula is:
wherein c represents the speed of light, f 0 Representing the TE nmp The working frequency of the rectangular dielectric resonator in the mode, wherein lambda represents the wavelength;
the obtaining the initial size information of the rectangular dielectric resonator according to the intersection point comprises the following steps:
acquiring the value of b/d and the k corresponding to the intersection point according to the third formula 0 A value of d;
according to the value of b/d, k 0 d, obtaining initial size information of the rectangular dielectric resonator by the value of d, the preset size condition and the fourth formula;
specifically, according to the third formula or FIG. 3, the value of b/d corresponding to the intersection point is 1, k 0 d has a value of 3.96, k according to b/d=1 0 d=3.96, a=b and fourth formulaTaking the resonance frequency as 28GHz, the initial size information of the rectangular dielectric resonator is a=b=d=5.6 mm (millimeters);
simulating a rectangular dielectric resonator antenna according to the initial size information, as shown in fig. 4, wherein the height of the rectangular dielectric resonator is reduced by half to 2.8mm due to the mirror image effect of the antenna ground;
the resonant frequency is the expected antenna target working frequency and can be flexibly set according to the requirement;
the design request also comprises a first preset value and a second preset value;
the initial size information includes a plurality of side lengths;
the adjusting the initial size information based on the preset maximum bandwidth until the first target intersecting higher-order mode and the second target intersecting higher-order mode achieve mode separation includes:
acquiring the current bandwidth of the rectangular dielectric resonator;
adjusting the side length corresponding to the first target intersecting higher-order mode according to a first preset value, and adjusting the side length corresponding to the second target intersecting higher-order mode according to a second preset value until the current bandwidth reaches a preset maximum bandwidth;
the first preset value, the second preset value and the preset maximum bandwidth can be flexibly set according to actual conditions;
when the mode separation is realized by adjusting the side length, if the first target is expected to intersect the high-order mode to the high frequency offset, the side length of the mode distribution is shortened, if the second target is expected to intersect the high-order mode to the low frequency offset, the corresponding side length of the mode distribution is increased, and vice versa;
specifically, the current bandwidth of the rectangular dielectric resonator is obtained, and as shown in fig. 6, the N257 frequency bands are covered;
since the TE311 mode of the rectangular dielectric resonator corresponds to a long or wide mode (specifically, whether the mode is distributed on a long side or a wide side), the TE113 mode corresponds to a high mode, the length or the width of the rectangular dielectric resonator is adjusted according to a first preset value, and the height of the rectangular dielectric resonator is adjusted according to a second preset value until the current bandwidth reaches a preset maximum bandwidth, as shown in fig. 8, until the current bandwidth covers the N257 and N258 frequency bands, the length of the rectangular dielectric resonator becomes 5.2mm, the width is 5.1mm, and the height is 3.1mm, as shown in fig. 7;
FIG. 5 shows a schematic diagram of mode separation of an antenna design method according to an embodiment of the present invention, assuming that TE311 and TE113 overlap at frequency f2, and the bandwidth (the range below-10 dB) is as shown in FIG. 5, if TE311 and TE113 are separated from f2, TE311 is shifted to low frequency offset to f1, TE113 is shifted to high frequency offset to f3, and the bandwidth can be widened at this time, so as to achieve the effect of a wideband dual-mode rectangular dielectric resonator antenna;
fig. 9 shows a gain diagram of an antenna design method according to an embodiment of the present invention, in which the high-gain performance is achieved because the high-order mode dielectric resonators are all high-gain antennas.
Example III
Referring to fig. 2, an antenna design terminal includes a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor implements the steps of the first or second embodiments when executing the computer program.
In summary, the antenna design method and terminal provided by the invention receive a rectangular dielectric resonator antenna design request including a preset size condition, determine a pattern diagram based on a rectangular dielectric waveguide formula according to the preset size condition, where the pattern diagram includes a plurality of curves corresponding to high-order modes, and each curve corresponding to the high-order mode represents k when b/d changes 0 d, determining a first target intersecting higher-order mode and a second target intersecting higher-order mode according to the mode diagram, obtaining an intersection point of the first target intersecting higher-order mode and the second target intersecting higher-order mode, and obtaining a value of b/d and k corresponding to the intersection point according to a third formula 0 d, according to the value of b/d, k 0 d, preset size conditions and a fourth formula to obtain initial size information of the rectangular dielectric resonator, adjusting the side length corresponding to the first target intersecting high-order mode according to a first preset value, and adjusting the side length corresponding to the second target intersecting high-order mode according to a second preset value until the current bandwidth reaches the preset maximum bandwidth, and because different high-order modes correspond to different sides of the rectangular dielectric resonator, adjusting the side length corresponding to the target intersecting high-order mode according to the preset value, the initial size of the rectangular dielectric resonator can be optimized quickly and effectively, the final size information of the rectangular dielectric resonator corresponding to the preset maximum bandwidth can be obtained, andthe rectangular dielectric resonator antenna is designed according to the final size information, the size of the broadband high-gain antenna can be finally determined without continuous setting and simulation, and the rapid design of the broadband high-gain rectangular dielectric resonator antenna is realized, so that the efficiency of designing the rectangular dielectric resonator antenna is improved.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (10)
1. An antenna design method, comprising:
receiving a rectangular dielectric resonator antenna design request, wherein the design request comprises a preset size condition;
determining a mode diagram based on a rectangular dielectric waveguide formula of the rectangular dielectric resonator according to the preset size condition;
determining a first target intersecting higher-order mode and a second target intersecting higher-order mode according to the pattern diagram, and obtaining an intersection point of the first target intersecting higher-order mode and the second target intersecting higher-order mode;
and obtaining initial size information of the rectangular dielectric resonator according to the intersection point, adjusting the initial size information based on a preset maximum bandwidth until the first target intersected higher-order mode and the second target intersected higher-order mode realize mode separation, obtaining final size information of the rectangular dielectric resonator corresponding to the preset maximum bandwidth, and designing the rectangular dielectric resonator antenna according to the final size information.
2. The method of claim 1, wherein the rectangular dielectric waveguide formula comprises a first formula and a second formula;
the determining the mode diagram based on the rectangular dielectric waveguide formula of the rectangular dielectric resonator according to the preset size condition comprises:
setting a preset dielectric constant of the rectangular dielectric resonator according to the design request;
deforming the first formula and the second formula to obtain a third formula;
determining a pattern diagram according to the third formula, the preset size condition and the preset dielectric constant;
the first formula is:
wherein k is x The wave number, k, representing the x-direction y The wavenumber, k, representing the y-direction z The wave number in the z direction is represented by a being the length of the rectangular dielectric resonator, b being the width of the rectangular dielectric resonator, d being the height of the rectangular dielectric resonator, n being TE nmp First number of modes, m is TE nmp Second number of modes, p is TE nmp A third number of modes;
the second formula is:
k x 2 +k y 2 +k z 2 ＝DK*k 0 2 ；
wherein DK represents the preset dielectric constant, k 0 Wavenumbers representing free space;
the third formula is:
3. the method of claim 2, wherein the pattern diagram includes a plurality of higher order mode curves, each higher order mode curve representing k as b/d changes 0 A variation value of d;
determining a first target intersecting higher-order mode and a second target intersecting higher-order mode according to the mode diagram, and obtaining an intersection point of the first target intersecting higher-order mode and the second target intersecting higher-order mode comprises:
and selecting any pair of intersecting curves from the pattern diagram, determining a first target intersecting higher-order mode and a second target intersecting higher-order mode corresponding to the intersecting curves, and obtaining the intersection points of the intersecting curves.
4. The method of claim 2, wherein the rectangular dielectric waveguide formula further comprises a fourth formula;
the fourth formula is:
wherein c represents the speed of light, f 0 Representing the TE nmp The working frequency of the rectangular dielectric resonator in the mode, wherein lambda represents the wavelength;
the obtaining the initial size information of the rectangular dielectric resonator according to the intersection point comprises the following steps:
acquiring the value of b/d and the k corresponding to the intersection point according to the third formula 0 A value of d;
according to the value of b/d, k 0 And d, the preset size condition and the fourth formula to obtain the initial size information of the rectangular dielectric resonator.
5. The antenna design method according to claim 1, wherein the design request further comprises a first preset value and a second preset value;
the initial size information includes a plurality of side lengths;
the adjusting the initial size information based on the preset maximum bandwidth until the first target intersecting higher-order mode and the second target intersecting higher-order mode achieve mode separation includes:
acquiring the current bandwidth of the rectangular dielectric resonator;
and adjusting the side length corresponding to the first target intersecting higher-order mode according to a first preset value, and adjusting the side length corresponding to the second target intersecting higher-order mode according to a second preset value until the current bandwidth reaches a preset maximum bandwidth.
6. An antenna design terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the following steps when executing the computer program:
receiving a rectangular dielectric resonator antenna design request, wherein the design request comprises a preset size condition;
determining a mode diagram based on a rectangular dielectric waveguide formula of the rectangular dielectric resonator according to the preset size condition;
determining a first target intersecting higher-order mode and a second target intersecting higher-order mode according to the pattern diagram, and obtaining an intersection point of the first target intersecting higher-order mode and the second target intersecting higher-order mode;
and obtaining initial size information of the rectangular dielectric resonator according to the intersection point, adjusting the initial size information based on a preset maximum bandwidth until the first target intersected higher-order mode and the second target intersected higher-order mode realize mode separation, obtaining final size information of the rectangular dielectric resonator corresponding to the preset maximum bandwidth, and designing the rectangular dielectric resonator antenna according to the final size information.
7. The antenna design terminal of claim 6, wherein the rectangular dielectric waveguide formula comprises a first formula and a second formula;
the determining the mode diagram based on the rectangular dielectric waveguide formula of the rectangular dielectric resonator according to the preset size condition comprises:
setting a preset dielectric constant of the rectangular dielectric resonator according to the design request;
deforming the first formula and the second formula to obtain a third formula;
determining a pattern diagram according to the third formula, the preset size condition and the preset dielectric constant;
the first formula is:
wherein k is x The wave number, k, representing the x-direction y The wavenumber, k, representing the y-direction z The wave number in the z direction is represented by a being the length of the rectangular dielectric resonator, b being the width of the rectangular dielectric resonator, d being the height of the rectangular dielectric resonator, n being TE nmp First number of modes, m is TE nmp Second number of modes, p is TE nmp A third number of modes;
the second formula is:
k x 2 +k y 2 +k z 2 ＝DK*k 0 2 ；
wherein DK represents the preset dielectric constant, k 0 Wavenumbers representing free space;
the third formula is:
8. the antenna design terminal of claim 7, wherein the pattern diagram includes a plurality of higher order mode corresponding curves, each higher order mode corresponding curve representing k as b/d changes 0 A variation value of d;
determining a first target intersecting higher-order mode and a second target intersecting higher-order mode according to the mode diagram, and obtaining an intersection point of the first target intersecting higher-order mode and the second target intersecting higher-order mode comprises:
and selecting any pair of intersecting curves from the pattern diagram, determining a first target intersecting higher-order mode and a second target intersecting higher-order mode corresponding to the intersecting curves, and obtaining the intersection points of the intersecting curves.
9. The antenna design terminal of claim 7, wherein the rectangular dielectric waveguide formula further comprises a fourth formula;
the fourth formula is:
wherein c represents the speed of light, f 0 Representing the TE nmp The working frequency of the rectangular dielectric resonator in the mode, wherein lambda represents the wavelength;
the obtaining the initial size information of the rectangular dielectric resonator according to the intersection point comprises the following steps:
acquiring the value of b/d and the k corresponding to the intersection point according to the third formula 0 A value of d;
according to the value of b/d, k 0 And d, the preset size condition and the fourth formula to obtain the initial size information of the rectangular dielectric resonator.
10. The antenna design terminal of claim 6, wherein the design request further comprises a first preset value and a second preset value;
the initial size information includes a plurality of side lengths;
the adjusting the initial size information based on the preset maximum bandwidth until the first target intersecting higher-order mode and the second target intersecting higher-order mode achieve mode separation includes:
acquiring the current bandwidth of the rectangular dielectric resonator;
and adjusting the side length corresponding to the first target intersecting higher-order mode according to a first preset value, and adjusting the side length corresponding to the second target intersecting higher-order mode according to a second preset value until the current bandwidth reaches a preset maximum bandwidth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110789495.0A CN113722777B (en) | 2021-07-13 | 2021-07-13 | Antenna design method and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110789495.0A CN113722777B (en) | 2021-07-13 | 2021-07-13 | Antenna design method and terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113722777A CN113722777A (en) | 2021-11-30 |
| CN113722777B true CN113722777B (en) | 2023-08-11 |
Family
ID=78673231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110789495.0A Active CN113722777B (en) | 2021-07-13 | 2021-07-13 | Antenna design method and terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113722777B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350307A (en) * | 2019-07-12 | 2019-10-18 | 合肥工业大学 | A kind of sequence mutually presents the dielectric resonator antenna array of circular polarisation |
| CN111428427A (en) * | 2020-03-27 | 2020-07-17 | 中国人民解放军海军工程大学 | Conformal microwave antenna design and radiation characteristic modeling method |
| CN111786098A (en) * | 2020-06-19 | 2020-10-16 | 深圳市信维通信股份有限公司 | 5G millimeter wave dual-frequency dielectric resonator antenna module and mobile terminal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521496B (en) * | 2018-12-24 | 2020-09-08 | 广东工业大学 | NMOSFET terahertz detector and method based on dielectric resonant antenna |
-
2021
- 2021-07-13 CN CN202110789495.0A patent/CN113722777B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350307A (en) * | 2019-07-12 | 2019-10-18 | 合肥工业大学 | A kind of sequence mutually presents the dielectric resonator antenna array of circular polarisation |
| CN111428427A (en) * | 2020-03-27 | 2020-07-17 | 中国人民解放军海军工程大学 | Conformal microwave antenna design and radiation characteristic modeling method |
| CN111786098A (en) * | 2020-06-19 | 2020-10-16 | 深圳市信维通信股份有限公司 | 5G millimeter wave dual-frequency dielectric resonator antenna module and mobile terminal |
Non-Patent Citations (1)
| Title |
|---|
| Dual‐band modified rectangular shaped dielectric resonator antenna with diversified polarization feature;Dwivedi Ajay Kumar等;《International Journal of Circuit Theory and Applications》;第49卷(第10期);3434-3442 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113722777A (en) | 2021-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Srivastava et al. | A CPW‐fed UWB MIMO antenna with integrated GSM band and dual band notches | |
| Deng et al. | TCM-based bezel antenna design with small ground clearance for mobile terminals | |
| Alibakhshi-Kenari et al. | Bandwidth extension of planar antennas using embedded slits for reliable multiband RF communications | |
| Mezaal et al. | A new narrow band dual-mode microstrip slotted patch bandpass filter design based on fractal geometry | |
| Parchin et al. | Frequency-switchable patch antenna with parasitic ring load for 5G mobile terminals | |
| CN105977612A (en) | Ultra-wideband parasitic antenna and mobile terminal | |
| US20230318182A1 (en) | Antenna radiator, and antenna | |
| Rasool et al. | A multi-slotted 2-element quadband MIMO antenna for 4G and 5G applications | |
| Kaur et al. | A compact plus shaped carpet fractal antenna with an I-shaped DGS for C-band/X-band/UWB/WIBAN applications | |
| Moradikordalivand et al. | An equivalent circuit model for broadband modified rectangular microstrip-fed monopole antenna | |
| CN103178341A (en) | Indoor high-speed communication antenna of wide-beam Q-band millimeter waves | |
| Jayasinghe et al. | Design of dual band patch antennas for cellular communications by genetic algorithm optimization | |
| CN113722777B (en) | Antenna design method and terminal | |
| de Araujo et al. | A multiband antenna design comprising the future 5G mobile technology | |
| Elabd et al. | Ultra-Compact 4-Port MIMO Antenna with Defected Ground Structure and SAR Analysis for 28/38 GHz 5G Mobile Devices | |
| Feng et al. | 5G Millimeter Wave Endfire Array Antenna with Printed Inverted‐F Structure | |
| Rana et al. | Design, simulation and analysis of 3.5 GHz microstrip patch antenna for wireless communication systems | |
| Toktas et al. | Ultra-wideband monopole antenna with defected ground for millimeter-wave applications | |
| CN215644985U (en) | Dielectric resonator-based antenna structure for increasing bandwidth and electronic equipment | |
| CN114094339B (en) | Adaptive tuning method, adaptive tuning antenna and electronic equipment | |
| CN113410617A (en) | Dielectric resonator-based antenna structure for increasing bandwidth and electronic equipment | |
| Shakib et al. | Optimization of planar monopole wideband antenna for wireless communication system | |
| Elijah et al. | The Effect of Different Position and Size of U-Shape Slot on a Microstrip Patch Antenna for IoT Application | |
| Kašibović et al. | An inset-fed rectangular microstrip patch antenna with multiple slits for sub 6GHz–5G applications | |
| CN215896691U (en) | Millimeter wave dielectric resonator antenna module and communication equipment |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |