CN111613879B - Dielectric non-resonant antenna - Google Patents
Dielectric non-resonant antenna Download PDFInfo
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- CN111613879B CN111613879B CN202010516703.5A CN202010516703A CN111613879B CN 111613879 B CN111613879 B CN 111613879B CN 202010516703 A CN202010516703 A CN 202010516703A CN 111613879 B CN111613879 B CN 111613879B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/06—Means for the lighting or illuminating of antennas, e.g. for purpose of warning
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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Abstract
The invention discloses a dielectric non-resonant antenna, which relates to the field of antennas, and comprises: a radiating element and a feed element; the radiation unit is made of transparent photosensitive resin materials and processed into a cone; the feed unit adopts a coaxial probe for coupling feed; the coaxial probe is positioned at the right center of the bottom surface of the conical body; the coaxial probe is used as a field source to generate electromagnetic waves, and the main radiation direction and the bandwidth of the dielectric non-resonant antenna are controlled by adjusting the shape of the edge of the conical body or changing the relative dielectric constant of the edge area of the conical body. The dielectric non-resonant antenna of the embodiment of the invention overcomes the problem that the conventional dielectric resonant antenna can only work at a specific frequency point because a specific mode needs to be excited for radiation, is very suitable for the integrated requirement of urban communication equipment and lighting equipment, meets the communication requirement, meets the requirements of urban lighting and attractiveness, and has high practicability.
Description
Technical Field
The invention relates to the field of antennas, in particular to a dielectric non-resonant antenna.
Background
With the rapid development of the communication industry, the number of antennas used in each frequency band is increasing, and the number of antennas to be erected is quite large. And people are more and more conscious of the environment and health, and how to integrate the communication antenna into the surrounding environment is more and more important, so that the antenna is disguised or beautified while the wireless network communication quality is met, and the appearance of the antenna is coordinated and unified with the urban environment.
In view of the above, it is a trend of urban demand to design antennas conformal and integrated with existing objects so as to avoid the antennas occupying extra space and reducing the size of the system, especially the requirement for communication coverage area in the current 5G era is increased, the number of antennas is large, and if not improved, the urban environment and the attractiveness are affected.
At present, a solution of adding an antenna in a street lamp and an indoor lighting lamp has been proposed. Also, a transparent antenna is proposed, which is hollow inside and has a light source to perform both illumination and antenna functions. However, in the above method, the former only adopts the traditional antenna to be installed in the lighting system, and not only is there more limited conditions for installation, but also the method cannot be applied to all lighting systems; the latter, although not having the former problem, is generally difficult to have a high bandwidth due to its dielectric antenna having a resonance characteristic, limiting its application and development.
Disclosure of Invention
In view of the above problems, the present invention provides a dielectric non-resonant antenna, which not only realizes two functions of illumination and antenna, but also solves the problem of low bandwidth of the dielectric antenna with resonant characteristics.
An embodiment of the present invention provides a dielectric non-resonant antenna, including: a radiating element and a feed element;
the radiation unit is made of transparent photosensitive resin materials and is processed into a cone;
the feed unit adopts a coaxial probe for coupling feed;
the coaxial probe is positioned at the right center of the bottom surface of the conical body, one end of the coaxial probe is inserted into the conical body, and the other end of the coaxial probe is fixed with the flange;
the coaxial probe is used as a field source to generate electromagnetic waves, and the boundary condition of the electromagnetic waves is controlled by adjusting the shape of the edge of the cone or changing the relative dielectric constant of the edge area of the cone, so that the main radiation direction and the bandwidth of the dielectric non-resonant antenna are controlled.
Optionally, the dielectric antenna is integrated with a lighting system;
the lighting system is embedded in the interior of the cone, and the cone provides support for the lighting system.
Optionally, the lighting system comprises: a light emitting diode and a power line;
the light emitting diode is embedded in any position inside the conical body;
one end of the power line is connected with the light emitting diode, and the other end of the power line penetrates out of the conical body to be connected with the power supply.
Optionally, the radiation unit is integrally formed into a cone by a 3D printing technique based on the transparent photosensitive resin material.
Optionally, the radiation unit, the feed unit and the light emitting diode are fixed by hot melt adhesive.
Optionally, the matching effect of the dielectric non-resonant antenna reaches a higher level and the relative bandwidth reaches 99% by adjusting the shape of the edge of the cone or changing the relative dielectric constant of the edge region of the cone.
Optionally, the adjusting the shape of the edge of the cone comprises: integrally adjusting the inclination angle of the boundary surface of the conical body to achieve the purpose of controlling the boundary condition of the electromagnetic wave;
or adjusting the inclination angle of the local boundary surface of the conical body to achieve the purpose of controlling the boundary condition of the electromagnetic wave.
Optionally, the changing the relative dielectric constant of the edge region of the cone includes: the relative dielectric constant of the edge area of the conical body is integrally changed, so that the aim of controlling the boundary condition of the electromagnetic wave is fulfilled;
or, the relative dielectric constant of the edge of the conical body is reduced by digging holes or slotting in a local area, so as to achieve the purpose of controlling the boundary condition of the electromagnetic wave;
or, the relative dielectric constant of the edge of the cone is increased by locally embedding a medium with higher dielectric constant, so as to achieve the purpose of controlling the boundary condition of the electromagnetic wave;
wherein the locally embedded higher dielectric constant medium is realized by mixed material printing in 3D printing technology to increase the relative dielectric constant of the cone edge.
Optionally, the coaxial probe is used as a field source, a mode which performs a radiation action is excited in the cone, and due to a change in the size of the cone, the modes of the regions of the cone are different, and the electromagnetic wave generated by the coaxial probe forms a surface wave on the inclined side surface of the cone to propagate, so that the directional pattern of the dielectric non-resonant antenna is determined not only by the mode in the cone but also by the surface wave propagating on the inclined side surface of the cone.
According to the dielectric non-resonant antenna provided by the invention, the radiation unit is made of a transparent photosensitive resin material and is processed into a cone, namely the dielectric of the dielectric non-resonant antenna; the feed unit adopts coaxial probe coupling feed, which is the feed source of the dielectric non-resonant antenna and generates electromagnetic waves; the coaxial probe is positioned at the right center of the bottom surface of the conical body, one end of the coaxial probe is inserted into the conical body, and the other end of the coaxial probe is fixed with the flange; the coaxial probe is used as a field source to generate electromagnetic waves, and the boundary condition of the electromagnetic waves is controlled by adjusting the shape of the edge of the conical body or changing the dielectric constant of the edge area of the conical body so as to control the main radiation direction and the bandwidth of the dielectric non-resonant antenna. According to the dielectric non-resonant antenna, the coaxial probe is taken as a field source, a far-field radiation pattern can be obtained through the field distribution, and the dielectric plays a role in regulating the field and the pattern. In addition, the coaxial probe as a feed source directly contacts with the medium and then reaches the air, the process enables electromagnetic waves to be transmitted to the air from the feed source to be smoother, and finally the medium plays a role in improving the bandwidth and regulating and controlling a directional diagram.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a block diagram of a dielectric non-resonant antenna according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of dimensions of a dielectric non-resonant antenna of an embodiment of the present invention;
FIG. 3 is a graph of the S-parameter of a dielectric non-resonant antenna of an embodiment of the present invention;
fig. 4 is a normalized directional diagram of a dielectric non-resonant antenna at 20GHz in accordance with an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention, but do not limit the invention to only some, but not all embodiments.
The inventor finds that the existing antenna is additionally arranged in a street lamp and an indoor illuminating lamp or a light source is arranged in a hollow transparent antenna in the interior to simultaneously realize two functions of illumination and the antenna, the antenna only adopts the traditional antenna to be additionally arranged in an illumination system, the traditional antenna is not only additionally provided with more limited conditions, but also can not be suitable for all the illumination systems; the latter, although not having the former problem, is generally difficult to have a high bandwidth due to its dielectric antenna having a resonance characteristic, limiting its application and development. And the manufacturing process of the antenna is complex and the cost is high.
The inventors have further investigated and found that the antenna originates from a dielectric waveguide and a dielectric resonator due to dielectric resonance. And the dielectric waveguide can be regarded as an open-ended transmission line composed of a medium, and electromagnetic waves can propagate inside the dielectric waveguide and in the space near the surface of the dielectric waveguide. Dielectric resonators are generally formed of a high dielectric constant dielectric, which can be generally equivalent to a structure with ideal magnetic walls around the periphery. According to the boundary condition of an ideal magnetic wall, electromagnetic waves can repeatedly oscillate in the dielectric resonant cavity to form electromagnetic resonance, and once the electromagnetic waves leak out of the cavity, radiation similar to an antenna can be formed.
Generally, a dielectric waveguide or a mode in a dielectric resonator can only be excited at a specific frequency point, and when a model of the dielectric resonator (or the dielectric waveguide) is determined, the frequency point of the excited mode is known. The feed then acts to deactivate the mode in the dielectric resonator and then to calculate the radiation pattern of its far field from this mode (the pattern distribution of the mode). And since dielectric resonators have a high Q value, their bandwidth is typically low. When the antenna is used for radiating (namely, a dielectric resonant antenna), the resonant characteristics of the antenna determine that the antenna has limited bandwidth.
Aiming at the problems, through diligent research, the inventor combines a large amount of calculation and actual measurement, creatively combines a 3D printing technology, realizes a dielectric non-resonant antenna adopting the 3D printing technology, overcomes the problem that the conventional dielectric resonant antenna needs to excite a specific mode to radiate and can only work at a specific frequency point, and is convenient to manufacture and low in cost. The embodiments of the present invention are explained and illustrated in detail below.
Referring to fig. 1, a model diagram of a dielectric non-resonant antenna according to an embodiment of the present invention is shown, where the dielectric non-resonant antenna includes: a radiating element and a feed element; the radiation unit is based on a transparent photosensitive resin material, a three-dimensional photocuring forming 3D printing technology is adopted, and the radiation unit is integrally formed and processed into a cone, wherein the cone is a medium of the dielectric non-resonant antenna; the feed unit adopts a coaxial probe for coupling feed, and the coaxial probe is a feed source. The coaxial probe is positioned in the center of the bottom surface of the conical body, one end of the coaxial probe is inserted into the conical body, the other end of the coaxial probe is fixed with the flange, the coaxial probe is used as a field source to generate electromagnetic waves, and the boundary conditions of the electromagnetic waves can be controlled by adjusting the shape of the edge of the conical body or changing the dielectric constant of the edge area of the conical body, so that the purposes of controlling the main radiation direction and the bandwidth of the dielectric non-resonant antenna are achieved.
It should be noted that, in the embodiment of the present invention, if the coaxial probe is not located at the center of the bottom surface of the cone, the directional pattern of the dielectric non-resonant antenna is finally shifted left and right, so to avoid this, in the design stage of 3D printing, the center of the bottom surface of the cone is designed to be a hole, so that the coaxial probe can be inserted into the hole, and the position of the coaxial probe is naturally fixed at the center of the bottom surface of the cone.
The dielectric antenna of the embodiment of the invention is integrated with the lighting system, the lighting system is embedded in the conical body, and the conical body provides support for the lighting system. Specifically, the lighting system includes: a light emitting diode and a power line; the light emitting diode is embedded in any position inside the conical body; one end of the power line is connected with the light-emitting diode, and the other end of the power line penetrates out of the conical body to be connected with the power supply. Because the cone body is made of transparent photosensitive resin materials, when a power supply is switched on to supply power to the light-emitting diode, light rays generated by the light-emitting diode can naturally penetrate through the cone body to play a role in illumination. And based on optical and electromagnetic theories, the two can not generate mutual interference and can coexist perfectly.
In addition, because the cone is made by adopting a 3D printing technology, the positions of the light-emitting diodes and the power supply can be designed according to requirements in the design stage, and the light-emitting diodes are connected and then placed into the cone in the later stage.
In the embodiment of the invention, the radiation unit, the feed unit and the light-emitting diode are fixed through the hot melt adhesive. Namely, after the surface of the coaxial probe, the binding surface of the flange and the cone and the surface of the light-emitting diode are coated with hot melt adhesive, the coaxial probe, the flange and the cone are placed in respective positions to fix the coaxial probe, the flange and the cone. Of course, it should be understood that the three components may be fixed by other methods.
In the embodiment of the invention, the matching effect of the dielectric non-resonant antenna can reach a higher level by adjusting the shape of the edge of the conical body or changing the dielectric constant of the edge area of the conical body, so that the relative bandwidth of the dielectric non-resonant antenna reaches 99 percent, and the relative bandwidth is far greater than that of the conventional dielectric resonant antenna.
When the electromagnetic wave is radiated from the dielectric portion into the air, it is equivalent to the electromagnetic wave being incident from the lossy dielectric portion into the air. The boundary condition of the electromagnetic wave can be controlled by adjusting the shape or the dielectric constant of the edge of the conical body, and the main radiation direction and the bandwidth of the dielectric non-resonant antenna are further controlled.
In the embodiment of the invention, because the coaxial probe is used for feeding, the generated electromagnetic wave is in a TEM mode in the coaxial line of the coaxial probe, and the mode in the medium (namely in the cone) is changed into a TMmn mode, and the electric field directions are all vertical to the conical surface of the cone. When the TMmn mode is radiated, the vertical polarized wave is regarded as being obliquely incident to the boundary surface of the conical body, and the direction of the electromagnetic wave beam can be controlled by integrally adjusting the inclination angle of the boundary surface of the conical body, namely the boundary condition of the electromagnetic wave is controlled, so that the aim of controlling the main radiation direction of the dielectric non-resonant antenna is fulfilled; of course, the same object can be achieved by adjusting the inclination angle of the local boundary surface of the cone. In addition, as the operating frequency of the coaxial probe increases, the number of electromagnetic wave propagation modes excited in the cone increases.
In the embodiment of the invention, the direction of the electromagnetic wave beam can be controlled by changing the relative dielectric constant of the edge region of the conical body. Certainly, the relative dielectric constant of the edge of the cone can be reduced by locally digging or slotting the edge region of the cone to achieve the aim of controlling the direction of the electromagnetic wave beam, or the relative dielectric constant of the edge of the cone can be increased by locally embedding a medium with a higher dielectric constant in the edge region of the cone to achieve the aim of controlling the direction of the electromagnetic wave beam. Compared with the traditional manufacturing process, the method has extremely high expansibility.
The dielectric non-resonant antenna provided by the embodiment of the invention does not aim at exciting the frequency point of the dielectric resonant antenna by the coaxial probe feed source, but breaks through the conventional situation, creatively takes the coaxial probe as a field source to generate electromagnetic waves, a far-field radiation pattern can be obtained by the field distribution, and the cone (i.e. the medium) plays a role in regulating the field, namely the cone plays a role in regulating the pattern. According to the dielectric non-resonant antenna provided by the embodiment of the invention, the coaxial probe not only excites a mode playing a radiation role in a medium. Also due to the cone dimensions, for example: the cone has small tip volume, large back end volume, constantly changing section diameter, different modes in different areas, and electromagnetic wave may form surface wave on the bevel edge surface of the cone for propagation. Therefore, the directional pattern of the dielectric non-resonant antenna of the embodiment of the invention is determined not only by the mode in the medium, but also by the surface wave propagated on the surface of the cone. In addition, the coaxial probe feed source directly contacts with the conical body and then reaches the air, the process enables electromagnetic waves to be transmitted to the air from the feed source to be smoother, the conical body achieves higher bandwidth through adjustment, and meanwhile the effect of regulating and controlling a directional diagram is achieved.
The dielectric non-resonant antenna of the embodiment of the invention overcomes the problem that the conventional dielectric resonant antenna only can work at a specific frequency point because a specific mode needs to be excited for radiation, is convenient to manufacture and low in cost, and can simply and quickly realize the adjustment of the shape of the edge of the cone and the change of the relative dielectric constant of the edge area of the cone based on a 3D printing technology. Meanwhile, the lighting system is embedded in the dielectric non-resonant antenna, so that the integrated requirement of urban communication equipment and lighting equipment is very suitable, the requirement of communication is met under the premise that the requirement of the current 5G era on a communication coverage area is higher, the requirement of urban lighting and attractiveness is met, the urban environment is greatly improved, and the integrated lighting system is attractive and has high practicability.
In the following, in order to verify the performance of the dielectric non-resonant antenna according to the embodiment of the present invention, specific examples and experimental data are used to characterize the dielectric non-resonant antenna, which completely meet the requirement of practicality.
Referring to fig. 2, a dimensional schematic of a dielectric non-resonant antenna of an embodiment of the present invention is shown, wherein the illumination system is not shown to better illustrate the dimensional parameters. It should be noted that the size parameter is only an exemplary size parameter of the dielectric non-resonant antenna, and the ratio indicates that the dielectric non-resonant antenna can only be of the size. The parameters are respectively as follows:
H1: the height of the cone is 50 mm;
D1: the width of the lower surface (i.e., bottom surface) of the cone is 30 mm;
D2: the width of the upper surface (i.e., top surface) of the cone, which is 5mm in size;
Lf: the width of the flange is 11.2 mm;
Hf: the thickness of the flange is 1.8 mm;
Hp: the height of the coaxial probe is 2.5 mm;
the relative dielectric constant of the transparent photosensitive resin material is 2.7, the loss tangent angle is 0.047, and the lighting system adopts an LED.
Referring to fig. 3, a graph of S-parameter of a dielectric non-resonant antenna according to an embodiment of the present invention is shown; the horizontal axis represents frequency, and the vertical axis represents S parameters based on each frequency point; the meaning of the curves in fig. 3 is as follows:
a dotted line formed by the point and the square is an S parameter simulation curve (Sim _ without LED in FIG. 3) when the dielectric non-resonant antenna is not embedded with the LED; a curve composed of a solid line and a circle is an S parameter simulation curve (Sim _ with LED in fig. 3) when the LED is embedded in the dielectric non-resonant antenna; a dotted line consisting of a short transverse line and a point is an S parameter actual measurement curve (Mea _ without LED in fig. 3) when the dielectric non-resonant antenna is not embedded with an LED; the curve composed of the solid line is the measured S-parameter curve (Mea _ with LED in fig. 3) when the dielectric non-resonant antenna is embedded with an LED.
Therefore, the dielectric non-resonant antenna provided by the embodiment of the invention has good bandwidth, completely meets the practical requirement of the antenna, and hardly influences the matching of the antenna due to the introduction of the LED. During measurement, the matching of the dielectric non-resonant antenna at 28GHz is poor, because the coaxial probe can slightly deviate from an assumed state when being inserted into a medium (a conical body), the situation is caused, and during actual use, the problem of poor matching can be avoided only by adjusting the state of the coaxial probe inserted into the medium.
Referring to fig. 4, a normalized directional diagram of a dielectric non-resonant antenna at 20GHz according to an embodiment of the present invention is shown; the meaning of the curves in fig. 4 is as follows:
a curve formed by a transverse line and a rhombus is an actual measurement directional pattern (Mea _ with LED in figure 4) when the LED is embedded in the dielectric non-resonant antenna; the curve formed by the implementation is a simulation directional diagram (Sim _ with LED in fig. 4) when the dielectric non-resonant antenna is embedded with the LED; a curve formed by the short transverse line and the black and white phase frame is an actually measured directional diagram (Mea in fig. 4) when the dielectric non-resonant antenna is not embedded with the LED; the curve composed of the short transverse line and the pentagon is a simulated directional diagram (Sim in fig. 4) when the dielectric non-resonant antenna is not embedded with the LED.
Since the dielectric non-resonant antenna has a very high bandwidth, for simplicity of the embodiment, only the normalized directional diagram of the dielectric non-resonant antenna at 20GHz is illustrated, so that the dielectric non-resonant antenna of the embodiment of the invention can completely meet the practical requirement of the antenna.
In summary, the dielectric non-resonant antenna of the embodiment of the invention completely meets the conditions of practical application, has very high bandwidth, overcomes the problem that the existing dielectric resonant antenna can only work at a specific frequency point, and has convenient manufacture and low cost. Meanwhile, the lighting system is embedded in the dielectric non-resonant antenna, so that the integrated requirement of urban communication equipment and lighting equipment is very suitable, the requirement of communication is met under the premise that the requirement of the current 5G era on a communication coverage area is higher, the requirement of urban lighting and attractiveness is met, the urban environment is greatly improved, and the integrated lighting system is attractive and has high practicability.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or article that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or article.
The dielectric non-resonant antenna provided by the present invention is described in detail above, and the principle and the implementation of the present invention are explained in detail herein by using specific examples, and the description of the above examples is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (7)
1. A dielectric non-resonant antenna, comprising: a radiating element and a feed element;
the radiation unit is made of transparent photosensitive resin materials and is processed into a conical table;
the feed unit adopts a coaxial probe for coupling feed;
the coaxial probe is positioned at the right center of the bottom surface of the conical table, one end of the coaxial probe is inserted into the conical table, and the other end of the coaxial probe is fixed with the flange;
the coaxial probe is used as a field source to generate electromagnetic waves, and the boundary condition of the electromagnetic waves is controlled by adjusting the shape of the edge of the conical table or changing the relative dielectric constant of the edge area of the conical table so as to control the main radiation direction and the bandwidth of the dielectric non-resonant antenna;
the coaxial probe is used as a field source, a mode for radiation is excited in the conical table, the size of the conical table is changed, so that the modes of all areas of the conical table are different, the electromagnetic wave generated by the coaxial probe forms a surface wave on the surface of the oblique edge of the conical table and propagates, and the directional pattern of the dielectric non-resonant antenna is determined not only by the mode in the conical table but also by the surface wave propagating on the surface of the oblique edge of the conical table;
the dielectric non-resonant antenna is integrated with a lighting system;
the lighting system is embedded in the conical table, and the conical table provides support for the lighting system.
2. The dielectric non-resonant antenna of claim 1, wherein the illumination system comprises: a light emitting diode and a power line;
the light emitting diode is embedded in any position inside the conical table;
one end of the power line is connected with the light emitting diode, and the other end of the power line penetrates out of the conical table to be connected with a power supply.
3. The dielectric non-resonant antenna of claim 1, wherein the radiating element is integrally formed as a conical frustum by 3D printing based on the transparent photosensitive resin material.
4. The dielectric non-resonant antenna of claim 2, wherein the radiating element is fixed to the feeding element and the light emitting diode by a hot melt adhesive.
5. The dielectric non-resonant antenna of claim 1, wherein matching of the dielectric non-resonant antenna is enhanced by adjusting the profile of the tapered platform edge or changing the relative dielectric constant of the tapered platform edge region.
6. The dielectric non-resonant antenna of claim 1, wherein the adjusting the profile of the tapered mesa edge comprises: integrally adjusting the inclination angle of the boundary surface of the conical table;
alternatively, the inclination of the local boundary surface of the conical table is adjusted.
7. The dielectric non-resonant antenna of claim 1, wherein the altering the relative dielectric constant of the tapered mesa edge region comprises: integrally changing the relative dielectric constant of the edge region of the conical table;
or, the relative dielectric constant of the edge of the conical platform is reduced by locally digging holes or grooving;
or, the relative dielectric constant of the edge of the conical table is increased by locally embedding a medium with higher dielectric constant;
wherein the locally embedded higher dielectric constant medium is realized by hybrid material printing in 3D printing technology to increase the relative dielectric constant of the tapered platform edge.
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| CN112259967B (en) * | 2020-11-05 | 2021-07-27 | 西安电子科技大学 | Wide-beam dielectric resonator antenna |
| CN115000706B (en) * | 2021-03-02 | 2024-05-07 | 上海天马微电子有限公司 | Phased array antenna and electronic device |
| CN115000705B (en) * | 2021-03-02 | 2024-07-05 | 上海天马微电子有限公司 | Antenna and electronic device |
| CN113471675B (en) * | 2021-05-20 | 2024-06-14 | 南京智能高端装备产业研究院有限公司 | Broadband ceramic inverted-L antenna covering Sub-6GHz frequency band |
| CN114361763B (en) * | 2022-01-19 | 2023-07-25 | 四川大学 | Integrated multi-antenna headlight and vehicle |
| CN115730474B (en) * | 2023-01-09 | 2023-04-28 | 上海霍莱沃电子系统技术股份有限公司 | Radiation zero construction method and device for dielectric resonator antenna |
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| US7161555B2 (en) * | 2003-09-11 | 2007-01-09 | Matsushita Electric Industrial Co., Ltd. | Dielectric antenna and radio device using the same |
| CN101752667A (en) * | 2008-12-11 | 2010-06-23 | 株式会社电装 | Dielectric loaded antenna having hollow portion therein |
| CN102097676A (en) * | 2011-01-15 | 2011-06-15 | 广东通宇通讯股份有限公司 | A lighting fixture type concealed antenna |
| CN104781987A (en) * | 2012-09-24 | 2015-07-15 | 天线国际有限责任公司 | Antenna and wireless communication device |
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| CN111613879A (en) | 2020-09-01 |
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