CN116632519A - Medium antenna and communication device - Google Patents
Medium antenna and communication device Download PDFInfo
- Publication number
- CN116632519A CN116632519A CN202310883755.XA CN202310883755A CN116632519A CN 116632519 A CN116632519 A CN 116632519A CN 202310883755 A CN202310883755 A CN 202310883755A CN 116632519 A CN116632519 A CN 116632519A
- Authority
- CN
- China
- Prior art keywords
- dielectric
- antenna
- wall
- radiation patch
- patch
- 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.)
- Granted
Links
- 238000004891 communication Methods 0.000 title claims abstract description 18
- 230000005855 radiation Effects 0.000 claims abstract description 109
- 230000005284 excitation Effects 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 239000011810 insulating material Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011800 void material Substances 0.000 claims description 3
- 230000000452 restraining effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 4
- 239000003989 dielectric material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- -1 acryl Chemical group 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000005418 spin wave Effects 0.000 description 1
Classifications
-
- 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
- H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
-
- 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
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Aerials With Secondary Devices (AREA)
- Waveguide Aerials (AREA)
Abstract
The embodiment of the application provides a dielectric antenna and communication equipment, and relates to the technical field of antennas. The dielectric antenna comprises an antenna unit, a dielectric shell and an excitation line, wherein the antenna unit consists of liquid filled in the dielectric shell, the dielectric constant of the liquid is larger than a first preset value, the antenna unit comprises a first radiation patch, a second radiation patch, a first oscillator wall, a second oscillator wall and a reflecting plate, the first radiation patch is connected with the first oscillator wall, and the second radiation patch is connected with the second oscillator wall; the first oscillator wall and the second oscillator wall are arranged on the reflecting plate in parallel and are positioned at two sides of an excitation gap on the reflecting plate, and the first radiation patch and the second radiation patch are positioned at two sides of a gap between the first oscillator wall and the second oscillator wall in the length direction; the excitation line is positioned on one side of the reflecting plate away from the first vibrator wall. Thus, the operating bandwidth of the antenna can be widened, and the size and weight of the antenna are not increased because the medium is not added on the basis of the existing antenna.
Description
Technical Field
The application relates to the technical field of antennas, in particular to a dielectric antenna and communication equipment.
Background
The dielectric antenna can realize high-efficiency signal transmission in a high frequency range, has higher communication gain and lower loss, and can improve communication quality and communication distance, so that the dielectric antenna has wide application prospect and can be used in the fields of wireless communication, radar, satellite communication and the like. Dielectric antennas generally utilize the material properties and shape structure of the dielectric to improve the performance of the antenna. The dielectric antennas can be divided into two types at present. The first is to add dielectric materials on the basis of the existing antenna, select a dielectric with proper dielectric constant and shape according to the antenna performance, and load the dielectric materials on the antenna to improve the antenna performance, such as improving the antenna gain, improving the antenna lobe pattern, and the like. The second is to excite the designed medium through the feeder line, and the electromagnetic wave radiates to the external space after the action of the medium block, so as to realize the antenna performance. The first is an improvement of the traditional antenna, and the second is a medium antenna in the true sense.
However, the method of adding the medium on the basis of the existing antenna improves one or more performances of the existing antenna by utilizing the medium block, but the cost is that the size and the weight of the antenna are increased, so that the antenna structure is more complex, the production cost of the antenna is increased, the anti-interference performance and the performance stability of the antenna are reduced, and the performance is limited. In the existing dielectric antenna technology for exciting the dielectric block, the dielectric is designed into a specific shape to be used as a radiating unit, and the radiating unit is matched with a metal reflector, so that the structure is single, the working bandwidth is usually narrow, and the working bandwidth is difficult to reach more than 20%.
Disclosure of Invention
The embodiment of the application provides a dielectric antenna and communication equipment, which can not increase the size and weight of the antenna and realize wider working bandwidth.
Embodiments of the application may be implemented as follows:
in a first aspect, an embodiment of the present application provides a dielectric antenna, where the dielectric antenna includes an antenna unit, a dielectric housing, and an excitation line, the antenna unit is composed of a liquid filled in the dielectric housing, a dielectric constant of the liquid is greater than a first preset value, the antenna unit includes a first radiation patch, a second radiation patch, a first oscillator wall, a second oscillator wall, and a reflection plate,
the first radiation patch is connected with the first oscillator wall, and the second radiation patch is connected with the second oscillator wall;
the first oscillator wall and the second oscillator wall are arranged on the reflecting plate in parallel and are positioned at two sides of an excitation gap on the reflecting plate, wherein the first radiation patch and the second radiation patch are positioned at two sides of a gap between the first oscillator wall and the second oscillator wall in the length direction;
the excitation line is positioned at one side of the reflecting plate away from the first oscillator wall.
In an alternative embodiment, the first radiating patch is provided with a first aperture, the second radiating patch is provided with a second aperture,
the first aperture includes a first opening located at an edge of the first radiating patch;
the second aperture includes a second opening located at an edge of the second radiating patch;
the first hole and the second hole are symmetrical with respect to a length direction of the void.
In an alternative embodiment, the first hole and the second hole are both flower-shaped grooves; and/or, the first opening is arranged on one side of the first radiation patch far away from the gap, and the second opening is arranged on one side of the second radiation patch far away from the gap.
In an alternative embodiment, a first included angle formed by the first radiation patch and the first oscillator wall is equal to a second included angle formed by the second radiation patch and the second oscillator wall, and the first included angle is greater than or equal to 90 degrees; and/or the first oscillator wall and the second oscillator wall are perpendicular to the reflecting plate.
In an alternative embodiment, the dielectric antenna further comprises a first dielectric plate and a second dielectric plate, the dielectric constants of the first dielectric plate and the second dielectric plate are smaller than a second preset value, the second preset value is smaller than the first preset value,
the first dielectric plate is arranged between the first radiation patch and the reflecting plate;
the second dielectric plate is disposed between the second radiation patch and the reflective plate.
In an alternative embodiment, the dielectric antenna further comprises a dielectric lens,
the dielectric lens is arranged on the first radiation patch and the second radiation patch and is used for restraining radiation lobes of the dielectric antenna, wherein the first radiation patch and the second radiation patch are located in a coverage range of the dielectric lens.
In an alternative embodiment, the surface of the dielectric lens away from the first radiation patch is spherical, and the surface near the first radiation patch is planar.
In an alternative embodiment, the antenna unit, the dielectric housing, the first dielectric plate, the second dielectric plate and the dielectric lens are all made of insulating materials.
In an alternative embodiment, the excitation line is perpendicular to and intersects the excitation slit, the excitation line comprises a first radiating portion and a second radiating portion,
the first radiation part is in a strip shape;
the second radiation part is in a water drop shape;
the first radiating portion is connected with the second radiating portion.
In a second aspect, an embodiment of the present application provides a communication device, where the communication device includes a dielectric antenna according to any one of the foregoing embodiments.
The embodiment of the application provides a dielectric antenna and communication equipment. The antenna unit is composed of a liquid filled in the dielectric housing, and the dielectric constant of the liquid is larger than a first preset value. The antenna unit comprises a first radiation patch, a second radiation patch, a first oscillator wall, a second oscillator wall and a reflecting plate. The first radiation patch is connected with the first oscillator wall, and the second radiation patch is connected with the second oscillator wall. The first vibrator wall and the second vibrator wall are arranged on the reflecting plate in parallel and are positioned on two sides of the excitation gap on the reflecting plate. The first radiation patch and the second radiation patch are positioned on two sides of the gap between the first oscillator wall and the second oscillator wall in the length direction. The excitation line is positioned at one side of the reflecting plate away from the first oscillator wall. In this way, the antenna element wall is excited by exciting the slot to form slot radiation, the antenna element wall is connected with the radiation patch to form double radiation, the two radiation are combined to form total radiation of the antenna, the antenna element wall and the radiation patch correspond to different resonance points, the working bandwidth of the antenna can be effectively widened after the combination, the relative working bandwidth can reach 70%, and the working band of the dielectric antenna is greatly increased; and, since the medium is not added to the existing antenna, the size and weight of the antenna are not increased.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an exploded view of a dielectric antenna according to an embodiment of the present application;
fig. 2 is a cross-sectional view of a dielectric antenna according to an embodiment of the present application;
fig. 3 is a top view of a dielectric antenna according to an embodiment of the present application;
fig. 4 is a bottom view of a dielectric antenna according to an embodiment of the present application;
fig. 5 is an S11 simulation diagram of a dielectric antenna according to an embodiment of the present application;
fig. 6 is a gain comparison diagram of a dielectric antenna and a metal antenna of the same type according to an embodiment of the present application.
Icon: a 10-dielectric antenna; 100-dielectric lens; 200-a media case; 310-a first radiating patch; 311-first hole; 313-a first opening; 320-a second radiating patch; 321-a second hole; 323-a second opening; 330-a first vibrator wall; 340-a second vibrator wall; 360-reflecting plate; 362-exciting the slit; 370-void; 410-a first dielectric plate; 420-a second dielectric plate; 500-excitation lines; 510-a first radiating portion; 520-second radiating portion.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the product of the application, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 3, fig. 1 is an exploded view of a dielectric antenna 10 according to an embodiment of the present application, fig. 2 is a cross-sectional view of the dielectric antenna 10 according to an embodiment of the present application, and fig. 3 is a top view of the dielectric antenna 10 according to an embodiment of the present application. The dielectric antenna 10 may include a dielectric housing 200, an antenna element, and an excitation wire 500.
The dielectric housing 200 is used to contain a liquid and to fix the liquid in the shape of the antenna element. That is, the antenna unit is composed of a liquid filled in the dielectric housing 200. Alternatively, the dielectric housing 200 may be made of an insulating material, for example, an acryl material. The media case 200 may also be formed by grinding, i.e., integrally formed. The dielectric housing 200 is used to encapsulate a liquid and to secure the liquid in the shape of an antenna element. The media case 200 may have injection holes left therein, and the liquid ports may be filled for sealing. That is, the inside of the dielectric housing 200 is hollowed out to the shape and size of the antenna unit.
The dielectric constant of the liquid can be larger than a first preset value, and the first preset value can be set in combination with actual requirements. The liquid can be a liquid with a high dielectric constant, and can be specifically set according to practical requirements, for example, the liquid is pure water with a dielectric constant of 80, forms a large dielectric constant difference with the external environment, and has strong binding capability on an electromagnetic field.
In this embodiment, the antenna unit includes a first radiation patch 310, a second radiation patch 320, a first dipole wall 330, a second dipole wall 340, and a reflecting plate 360. The first radiating patch 310 is connected to the first vibrator wall 330, and the second radiating patch 320 is connected to the second vibrator wall 340. The first vibrator wall 330 and the second vibrator wall 340 are disposed on the reflection plate 360 in parallel to form a magnetic vibrator, and the first vibrator wall 330 and the second vibrator wall 340 are disposed on both sides of the excitation slit 362 on the reflection plate 360. Wherein the first radiating patch 310 and the second radiating patch 320 are located at two sides of the length direction of the gap 370 between the first oscillator wall 330 and the second oscillator wall 340, that is, the first radiating patch 310 is located at one side of the length direction of the gap 370, and the second radiating patch 320 is located at the other side of the length direction of the gap 370. The excitation line 500 is located at a side of the reflecting plate 360 remote from the first vibrator wall 330.
In this embodiment, a dielectric with a large dielectric constant is selected as the material for manufacturing the antenna radiator and the reflector. Since the larger the dielectric constant is, the stronger the capability of confining the electromagnetic field is, the high dielectric constant can be regarded as the characteristic of the electric wall, and the medium with the large dielectric constant is used as the substitute material of the traditional metal plate. In the dielectric antenna 10 provided in this embodiment, the antenna element wall is excited by the slot to form slot radiation, the antenna element wall is connected with the radiation patch to excite the radiation patch to form dual radiation, the total radiation of the antenna is combined by the two radiation, the antenna element wall and the radiation patch correspond to different resonance points, the working bandwidth of the antenna can be effectively widened after the combination, the relative working bandwidth can reach 70%, and the working band of the dielectric antenna is greatly increased. The dielectric antenna 10 may be a wideband directional dielectric antenna operating in the S-band.
Optionally, in this embodiment, the first radiating patch 310 forms a first angle with the first vibrator wall 330, and the second radiating patch 320 forms a second angle with the second vibrator wall 340, and the first angle is equal to the second angle. The first included angle may be 90 degrees or greater. The inventor finds that when the first included angle and the second included angle are equal to 90 degrees, the maximum gain of the antenna can be realized; when the first included angle and the second included angle are larger than 90 degrees, the directional pattern beam corresponding to the antenna surface is gradually widened along with the increase of the angle.
Alternatively, in the present embodiment, the first vibrator wall 330 and the second vibrator wall 340 are perpendicular to the reflective plate 360.
Wherein the reflecting plate 360 is free of liquid at the excitation slit 362. Optionally, the excitation slit 362 of the reflection plate 360 is a part of the dielectric housing 200, or the dielectric housing 200 is an elongated through hole at the excitation slit 362, and the elongated through hole serves as the excitation slit 362, where the excitation slit 362 communicates with the gap 370. The length of the excitation slit 362 may be equal to or less than 0.5λ, where λ represents a wavelength corresponding to a center frequency in the operating band.
As a possible implementation manner, the heights of the first and second oscillator walls 330 and 340 are λ/4 (λ is a wavelength corresponding to the center frequency), the widths of the first and second radiating patches 310 and 320 (the width direction is parallel to the length direction of the excitation slit 362) are 0.4λ, the sum of the lengths of the first and second radiating patches 310 and 320 (the length direction is perpendicular to the length direction of the excitation slit 362) and the width of the excitation slit 362 is 0.53 λ, and the length of the excitation slit 362 is 0.45 λ.
In this embodiment, the excitation line 500 generates a current through the excitation slit 362 on the excitation reflection plate 360, and the current passes through the first and second oscillator walls 330 and 340 placed in parallel, a part of energy is radiated from the gap 370 between the first and second oscillator walls 330 and 340 to the free space, and a part of energy is conducted from the oscillator walls first and second oscillator walls 330 and 340 to the first and second radiation patches 310 and 320, and is radiated to the free space after being acted on by the first and second radiation patches 310 and 320. The first dipole wall 330, the second dipole wall 340 and the gap 370 between the first dipole wall 330 and the second dipole wall 340 form a magnetic dipole, the first radiation patch 310 and the second radiation patch 320 form an electric dipole, and fig. 1 and fig. 3 show that the magnetic dipole and the electric dipole are orthogonally arranged, so that the polarization directions of the radiation electromagnetic waves of the magnetic dipole and the electric dipole are the same, and the overall radiation of the antenna is formed after vector superposition, so that the working bandwidth of the dielectric antenna is wider.
Since the electric dipole formed by the first radiating patch 310 and the second radiating patch 320 and the magnon formed by the first dipole wall 330 and the second dipole wall 340 generate resonance points respectively, the positions of the resonance points can be properly adjusted by adjusting the lengths of the first radiating patch 310 and the second radiating patch 320 and/or adjusting the heights of the first dipole wall 330 and the second dipole wall 340, so that the antenna generates a wider operating bandwidth. The length direction of the first radiation patch 310 and the second radiation patch 320 is perpendicular to the length direction of the excitation slit 362.
As a possible implementation, as shown in fig. 3, in this embodiment, the first radiation patch 310 is provided with a first hole 311, and the second radiation patch 320 is provided with a second hole 321. The positions corresponding to the first hole 311 and the second hole 321 are free of liquid, and the specific arrangement mode can be determined according to the actual requirements.
In this embodiment, the first hole 311 includes a first opening 313, and the first opening 313 is located at an edge of the first radiation patch 310. The second aperture 321 comprises a second opening 323, which second opening 323 is located at an edge of the second radiation patch 320. The first hole 311 and the second hole 321 are symmetrical with respect to the longitudinal direction of the gap 370, that is, with respect to the longitudinal direction of the excitation slit 362. In this way, the current can be routed to the edges of the first radiating patch 310 and the second radiating patch 320, and the edges of the first hole 311 and the second hole 321, respectively, so that the current forms a plurality of different current paths on the radiating patches, which helps to widen the impedance bandwidth of the antenna.
Wherein, optionally, as shown in fig. 3, the medium housing 200 may be provided with annular holes at the positions of the first hole 311 and the second hole 321, and the edges of the annular holes are a part of the medium housing 200; alternatively, the medium housing 200 may be provided with a hole with a notch at the positions of the first hole 311 and the second hole 321, that is, the first hole 311 and the second hole 321 are holes with a notch, and part of edges of the first hole 311 and the second hole 321 are hollow, so that the medium housing 200 is not provided.
Alternatively, the first hole 311 and the second hole 321 may be provided in a circular shape, a rectangular shape, or the like. The first opening 313 and the second opening 323 may be provided on either side of the radiating patch. The specific shapes of the first hole 311 and the second hole 321, and the specific positions of the first opening 313 and the second opening 323 can be set according to the actual requirements. As a possible implementation, as shown in fig. 3, the first hole 311 and the second hole 321 are provided with flower grooves, the first opening 313 is disposed on a side of the first radiation patch 310 away from the gap 370, and the second opening 323 is disposed on a side of the second radiation patch 320 away from the gap 370.
Referring to fig. 1, fig. 2 and fig. 4, fig. 4 is a bottom view of a dielectric antenna according to an embodiment of the present application. The excitation line 500 may be set to a characteristic impedance of 50 ohms. In this embodiment, the excitation line 500 is perpendicular to and intersects the excitation slit 362. Alternatively, the excitation slit 362 may be located in the middle of the excitation line 500.
As a possible implementation manner, the excitation line 500 may include a first radiating portion 510 and a second radiating portion 520, where the first radiating portion 510 is in a long strip shape, the second radiating portion 520 is in a water drop state, and the first radiating portion 510 is connected to the second radiating portion 520. Thus helping to match and increase bandwidth.
Referring to fig. 1 to 3 again, in this embodiment, the dielectric antenna 10 may further include a first dielectric plate 410 and a second dielectric plate 420. The dielectric constants of the first dielectric plate 410 and the second dielectric plate 420 may be smaller than a second preset value, which is smaller than the first preset value, for example, the dielectric constants of the first dielectric plate 410 and the second dielectric plate 420 are 3. Alternatively, the thicknesses of the first dielectric plate 410 and the second dielectric plate 420 may be 0.03 λ.
The first dielectric plate 410 is disposed between the first radiation patch 310 and the reflection plate 360, and the second dielectric plate 420 is disposed between the second radiation patch 320 and the reflection plate 360. The first dielectric plate 410 and the second dielectric plate 420 form a strong capacitive coupling effect between the radiation patch (i.e., the first radiation patch 310 and the second radiation patch 320) and the reflective plate 360, so as to cancel the inductance component generated by the reflective plate 360, thereby increasing the impedance bandwidth.
The specific dimensions and positions of the first dielectric plate 410 and the second dielectric plate 420 may be set according to practical requirements. As one possible implementation, the distance between the dielectric plate (including the first dielectric plate 410 and the second dielectric plate 420) and the reflective plate 360 is smaller than the distance between the dielectric plate and the radiation patch.
Referring to fig. 1 to 3 again, in this embodiment, the dielectric antenna 10 may further include a dielectric lens 100. The dielectric lens 100 is arranged on the first 310 and second 320 radiation patches for confining the radiation lobe of the dielectric antenna 10. The first radiation patch 310 and the second radiation patch 320 are located within the coverage area of the dielectric lens 100. The specific materials, specific structures and dimensions of the dielectric lens 100 may be set in accordance with actual requirements, and are not specifically limited herein. Thus, by providing the dielectric lens 100 on top of the dielectric antenna 10, the radiation lobe of the antenna can be confined in a wide frequency band, so that the antenna has relatively stable beam performance in the operating frequency band, and the fluctuation of the half-power beam width in the operating range is reduced. That is, the dielectric lens 100 is used to make the antenna beam width fluctuation small, the beam relatively narrow, and the gain relatively high.
Alternatively, as a possible implementation, the surface of the dielectric lens 100 away from the first radiation patch 310 is spherical, and the surface near the first radiation patch 310 is planar. That is, the dielectric lens 100 has a spherical upper surface and a planar lower surface. Alternatively, the material used for the dielectric lens 100 may be an insulating material, such as Rogers RO3003, rogers RO3003 being a ceramic filled PTFE composite/laminate. The center thickness of the dielectric lens 100 may be 0.05λ.
As a possible implementation manner, the antenna unit, the dielectric housing 200, the first dielectric plate 410, the second dielectric plate 420 and the dielectric lens 100 are made of insulating materials. Therefore, the dielectric antenna 10 adopts insulating dielectric materials except the exciting line 500, namely, the dielectric antenna 10 hardly uses metal materials, so that the dielectric antenna 10 has good insulating performance, RCS (Radar Cross Section ) of the antenna can be reduced, and the anti-interference capability is effectively improved.
In this embodiment, a combination of a dielectric resonator wall with a high dielectric constant and a dielectric radiation patch, and a hole provided in the radiation patch, and a dielectric plate provided between the radiation patch and the reflective plate realize a wider frequency band. As shown in FIG. 5 and FIG. 6, the dielectric antenna 10 provided in this embodiment has an operating bandwidth of S11 less than or equal to-10 dB in the frequency range of 1.86 GHz to 4.17GHz, the relative bandwidth reaches 76.6%, and the antenna efficiency reaches the level of the metal antenna.
In this embodiment, the dielectric antenna 10 is partially and completely made of an insulating material, so as to improve the anti-interference capability and the environment adaptation capability. In addition, the efficiency of the antenna can be improved by using a medium with high dielectric constant as a radiation and reflection material; the working bandwidth of the antenna is greatly widened through the slots and the radiation patches which are formed by the medium.
The embodiment of the application also provides communication equipment, which comprises the dielectric antenna 10. The communication device may be a cell phone or other type of terminal.
In summary, the embodiment of the application provides a dielectric antenna and a communication device, where the dielectric antenna includes an antenna unit, a dielectric housing, and an excitation line. The antenna unit is composed of a liquid filled in the dielectric housing, and the dielectric constant of the liquid is larger than a first preset value. The antenna unit comprises a first radiation patch, a second radiation patch, a first oscillator wall, a second oscillator wall and a reflecting plate. The first radiation patch is connected with the first oscillator wall, and the second radiation patch is connected with the second oscillator wall. The first vibrator wall and the second vibrator wall are arranged on the reflecting plate in parallel and are positioned on two sides of the excitation gap on the reflecting plate. The first radiation patch and the second radiation patch are positioned on two sides of the gap between the first oscillator wall and the second oscillator wall in the length direction. The excitation line is positioned at one side of the reflecting plate away from the first oscillator wall. In this way, the antenna element wall is excited by exciting the slot to form slot radiation, the antenna element wall is connected with the radiation patch to form double radiation, the two radiation are combined to form total radiation of the antenna, the antenna element wall and the radiation patch correspond to different resonance points, the working bandwidth of the antenna can be effectively widened after the combination, the relative working bandwidth can reach 70%, and the working band of the dielectric antenna is greatly increased; and, since the medium is not added to the existing antenna, the size and weight of the antenna are not increased.
The application is not limited to the alternative embodiments described, but may be modified and varied by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A dielectric antenna is characterized by comprising an antenna unit, a dielectric housing and an excitation line, wherein the antenna unit is composed of liquid filled in the dielectric housing, the dielectric constant of the liquid is larger than a first preset value, the antenna unit comprises a first radiation patch, a second radiation patch, a first oscillator wall, a second oscillator wall and a reflecting plate,
the first radiation patch is connected with the first oscillator wall, and the second radiation patch is connected with the second oscillator wall;
the first oscillator wall and the second oscillator wall are arranged on the reflecting plate in parallel and are positioned at two sides of an excitation gap on the reflecting plate, wherein the first radiation patch and the second radiation patch are positioned at two sides of a gap between the first oscillator wall and the second oscillator wall in the length direction;
the excitation line is positioned at one side of the reflecting plate away from the first oscillator wall.
2. The dielectric antenna of claim 1, wherein the first radiating patch has a first aperture and the second radiating patch has a second aperture,
the first aperture includes a first opening located at an edge of the first radiating patch;
the second aperture includes a second opening located at an edge of the second radiating patch;
the first hole and the second hole are symmetrical with respect to a length direction of the void.
3. The dielectric antenna of claim 2, wherein the first and second holes are flower-shaped slots; and/or, the first opening is arranged on one side of the first radiation patch far away from the gap, and the second opening is arranged on one side of the second radiation patch far away from the gap.
4. A dielectric antenna according to any one of claims 1-3, wherein a first angle formed by the first radiating patch and the first dipole wall is equal to a second angle formed by the second radiating patch and the second dipole wall, the first angle being equal to or greater than 90 degrees; and/or the first oscillator wall and the second oscillator wall are perpendicular to the reflecting plate.
5. A dielectric antenna as set forth in any one of claims 1-3 further comprising a first dielectric plate and a second dielectric plate having dielectric constants less than a second predetermined value, the second predetermined value being less than the first predetermined value,
the first dielectric plate is arranged between the first radiation patch and the reflecting plate;
the second dielectric plate is disposed between the second radiation patch and the reflective plate.
6. The dielectric antenna of claim 5, further comprising a dielectric lens,
the dielectric lens is arranged on the first radiation patch and the second radiation patch and is used for restraining radiation lobes of the dielectric antenna, wherein the first radiation patch and the second radiation patch are located in a coverage range of the dielectric lens.
7. The dielectric antenna of claim 6, wherein a surface of the dielectric lens distal from the first radiating patch is spherical and a surface proximal to the first radiating patch is planar.
8. The dielectric antenna of claim 6, wherein the antenna element, dielectric housing, first dielectric plate, second dielectric plate, and dielectric lens are all made of an insulating material.
9. A dielectric antenna as claimed in any one of claims 1 to 3, wherein the excitation line is perpendicular to and intersects the excitation slit, the excitation line comprising a first radiating portion and a second radiating portion,
the first radiation part is in a strip shape;
the second radiation part is in a water drop shape;
the first radiating portion is connected with the second radiating portion.
10. A communication device, characterized in that it comprises a dielectric antenna according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310883755.XA CN116632519B (en) | 2023-07-19 | 2023-07-19 | Medium antenna and communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310883755.XA CN116632519B (en) | 2023-07-19 | 2023-07-19 | Medium antenna and communication device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116632519A true CN116632519A (en) | 2023-08-22 |
| CN116632519B CN116632519B (en) | 2023-10-20 |
Family
ID=87617357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310883755.XA Active CN116632519B (en) | 2023-07-19 | 2023-07-19 | Medium antenna and communication device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116632519B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6914581B1 (en) * | 2001-10-31 | 2005-07-05 | Venture Partners | Focused wave antenna |
| CN102025023A (en) * | 2010-12-09 | 2011-04-20 | 广东通宇通讯股份有限公司 | Broadband wide-beam dual-polarized antenna unit |
| WO2013126124A2 (en) * | 2011-12-07 | 2013-08-29 | Utah State University | Reconfigurable antennas utilizing liquid metal elements |
| CN103311639A (en) * | 2012-03-06 | 2013-09-18 | 香港城市大学 | Aesthetic dielectric antenna and method of discretely emitting radiation pattern using same |
| US8994594B1 (en) * | 2013-03-15 | 2015-03-31 | Neptune Technology Group, Inc. | Ring dipole antenna |
| CN104821426A (en) * | 2015-03-26 | 2015-08-05 | 南京邮电大学 | Loop-oscillator combined antenna |
| US20160365638A1 (en) * | 2015-06-12 | 2016-12-15 | City University Of Hong Kong | Waveguide fed and wideband complementary antenna |
| CN107785652A (en) * | 2017-11-20 | 2018-03-09 | 华南理工大学 | A kind of liquid paster antenna |
| US20210175609A1 (en) * | 2019-12-06 | 2021-06-10 | Samsung Electro-Mechanics Co., Ltd. | Chip antenna module array and chip antenna module |
| CN112968271A (en) * | 2020-12-10 | 2021-06-15 | 广东工业大学 | Broadband dual-polarized antenna |
-
2023
- 2023-07-19 CN CN202310883755.XA patent/CN116632519B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6914581B1 (en) * | 2001-10-31 | 2005-07-05 | Venture Partners | Focused wave antenna |
| CN102025023A (en) * | 2010-12-09 | 2011-04-20 | 广东通宇通讯股份有限公司 | Broadband wide-beam dual-polarized antenna unit |
| WO2013126124A2 (en) * | 2011-12-07 | 2013-08-29 | Utah State University | Reconfigurable antennas utilizing liquid metal elements |
| CN103311639A (en) * | 2012-03-06 | 2013-09-18 | 香港城市大学 | Aesthetic dielectric antenna and method of discretely emitting radiation pattern using same |
| US8994594B1 (en) * | 2013-03-15 | 2015-03-31 | Neptune Technology Group, Inc. | Ring dipole antenna |
| CN104821426A (en) * | 2015-03-26 | 2015-08-05 | 南京邮电大学 | Loop-oscillator combined antenna |
| US20160365638A1 (en) * | 2015-06-12 | 2016-12-15 | City University Of Hong Kong | Waveguide fed and wideband complementary antenna |
| CN107785652A (en) * | 2017-11-20 | 2018-03-09 | 华南理工大学 | A kind of liquid paster antenna |
| US20210175609A1 (en) * | 2019-12-06 | 2021-06-10 | Samsung Electro-Mechanics Co., Ltd. | Chip antenna module array and chip antenna module |
| CN112968271A (en) * | 2020-12-10 | 2021-06-15 | 广东工业大学 | Broadband dual-polarized antenna |
Non-Patent Citations (3)
| Title |
|---|
| ABHISHEK DEY ET AL: ""Microfluidically reconfigured wideband frequency-tunable liquid-metal monopole antenna"", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》, vol. 64, no. 6, pages 2572 - 2576 * |
| 于杰等: ""一种层叠液体介质谐振器天线"", 《2022年全国微波毫米波会议论文集（下册）》 * |
| 李明: ""新型天线技术研究进展"", 《航天电子对抗》, vol. 29, no. 1, pages 39 - 41 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116632519B (en) | 2023-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Feng et al. | Dual-wideband dual-polarized metasurface antenna array for the 5G millimeter wave communications based on characteristic mode theory | |
| Emadian et al. | Very small dual band-notched rectangular slot antenna with enhanced impedance bandwidth | |
| Yang et al. | Design of a wide-band L-probe patch antenna for pattern reconfiguration or diversity applications | |
| US7471248B2 (en) | Planar multiband antenna | |
| US7589676B2 (en) | Aperture-coupled antenna | |
| CA2176656C (en) | Broadband circularly polarized dielectric resonator antenna | |
| KR101196250B1 (en) | Dual polarised radiating element for cellular base station antennas | |
| JP2006519545A (en) | Multi-band branch radiator antenna element | |
| US10978812B2 (en) | Single layer shared aperture dual band antenna | |
| Nahar et al. | Survey of various bandwidth enhancement techniques used for 5G antennas | |
| Wang et al. | New dielectric 1-D EBG structure for the design of wideband resonator antennas | |
| Liu et al. | A pattern-reconfigurable filtering patch antenna using embedded resonators and switchable elements | |
| Jagtap et al. | Gain and bandwidth enhancement of circularly polarized MSA using PRS and AMC layers | |
| Hanaoui et al. | Elliptical slot rectangular patch antenna array with dual band behaviour for future 5G wireless communication networks | |
| CN116632519B (en) | Medium antenna and communication device | |
| AbuTarboush et al. | Design of planar inverted-F antennas (PIFA) for multiband wireless applications | |
| Ding et al. | Dual-band circularly polarized dual-slot antenna with a dielectric cover | |
| Jagtap et al. | Low profile, high gain and wideband circularly polarized antennas using hexagonal shape parasitic patches | |
| Hasan et al. | Dual band slotted printed circular patch antenna with superstrate and EBG structure for 5G applications | |
| Karamzadeh et al. | Beam steering fabry perot array antenna for mm-wave application | |
| Ding et al. | A novel loop-like monopole antenna with dual-band circular polarization | |
| Akmal et al. | A Printed Helical Circular Polarization Antenna for GNSS Anti-Attacking System | |
| Venkatachari et al. | A Slot Coupled Parasitic DRA Antenna using EBG wall for high Gain used for radio astronmy and space to earth applications | |
| Li et al. | A Broadband SIW-Fed Rhombic Loop Antenna With Endfire Radiation for Millimeter-Wave Applications | |
| Singhwal et al. | Ultra-wide-band Circularly Polarized Mushroom-shaped Dielectric Resonator Antenna for 5G and sub-6 GHz 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |