CN112636003B - Array antenna and mounting plate device thereof - Google Patents
Array antenna and mounting plate device thereof Download PDFInfo
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- CN112636003B CN112636003B CN202011555760.0A CN202011555760A CN112636003B CN 112636003 B CN112636003 B CN 112636003B CN 202011555760 A CN202011555760 A CN 202011555760A CN 112636003 B CN112636003 B CN 112636003B
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- 230000005855 radiation Effects 0.000 claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
- H01Q15/18—Reflecting surfaces; Equivalent structures comprising plurality of mutually inclined plane surfaces, e.g. corner reflector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—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
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
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- 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
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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- 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
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention relates to an array antenna and a mounting plate device thereof. The reflecting plate is provided with a bearing surface, and an installation area for installing the low-frequency radiation unit and the high-frequency radiation unit is formed on the bearing surface; the reflectors are distributed on two sides of the mounting area, each reflector is provided with a reflecting inclined plane, and the reflecting inclined planes are obliquely arranged relative to the bearing surface. Electromagnetic wave signals emitted by the high-frequency radiation unit and the low-frequency radiation unit radiate outwards, and when the electromagnetic wave signals hit the radome, part of the electromagnetic wave signals are reflected towards the reflecting plate. Due to the existence of the reflecting inclined plane, the partially reflected electromagnetic wave signal is reflected towards the inclined direction after being reflected again, so that the superposition of the reflected electromagnetic wave signal and the electromagnetic wave signal emitted by the high-frequency radiation unit in a certain angle range right in front of the high-frequency radiation unit is avoided. Therefore, the abnormal ripple effect generated by the directional pattern of the high-frequency radiation unit can be effectively avoided, and the antenna performance is improved.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to an array antenna and a mounting plate device thereof.
Background
With the large-scale commercial use of the 5G mobile communication system, a phenomenon in which a plurality of communication systems, such as 5G and 4G coexist, occurs in most of the base stations. The base station antenna composed of the independent 4G multi-frequency antenna and the independent 5G antenna has a series of problems of large volume, difficult debugging and the like, so that the nested array antenna formed by combining the 4G antenna and the 5G antenna is generated.
The conventional 5G antenna consists of a radome, a reflecting plate, a 5G antenna subarray, a spacer, a back calibration network circuit and the like. In an array antenna fused with a 4G antenna and a 5G antenna, a 4G radiating element needs to be embedded into a 5G antenna subarray. In this way, the fused array antenna is widened and the radome is higher than that of the traditional 5G antenna. Eventually, these variations can create a malformed ripple effect on the pattern of the 5G antenna sub-array, resulting in poor performance of the array antenna.
Disclosure of Invention
In view of the above, it is necessary to provide an array antenna and a mounting board device thereof that can improve antenna performance.
The mounting plate device comprises a reflecting plate and a reflector arranged on the reflecting plate, wherein the reflecting plate is provided with a bearing surface, and a mounting area for mounting a low-frequency radiation unit and a high-frequency radiation unit is formed on the bearing surface; the reflectors are distributed on two sides of the mounting area in a first direction, each reflector is provided with a reflecting inclined surface extending along a second direction perpendicular to the first direction, and the reflecting inclined surfaces are obliquely arranged relative to the bearing surface.
In one embodiment, the included angle between the reflecting inclined plane and the bearing surface is 30 degrees to 45 degrees.
In one embodiment, the reflector is formed with a plurality of slits extending through the reflective bevel.
In one embodiment, the plurality of slits are distributed on the reflecting inclined plane along the second direction, each slit is in a U shape, and openings of two adjacent slits are opposite in direction and are sleeved with each other.
In one embodiment, the length of each slit is smaller than a quarter wavelength of the center frequency point of the high frequency radiating element.
In one embodiment, the sum of the lengths of the plurality of slits is equal to one half wavelength of the center frequency point of the low frequency radiating element.
In one embodiment, the reflector comprises a supporting plate parallel to the bearing surface and a sloping plate arranged on the supporting plate and inclined relative to the supporting plate, and the reflecting sloping surface is formed on the surface of the sloping plate.
In one embodiment, each of the reflectors has one of the reflective slopes, and the width of the reflective slope is equal to a quarter wavelength of a center frequency point of the high frequency radiating element.
In one embodiment, each of the reflectors includes three reflective slopes disposed in parallel and at intervals, and the widths of the three reflective slopes are equal to a quarter wavelength of a start frequency point, a center frequency point, and an intercept frequency point of the high-frequency radiating unit, respectively.
An array antenna, comprising:
a mounting plate arrangement as claimed in any one of the preceding preferred embodiments; and
The high-frequency radiating units and the low-frequency radiating units are arranged in the installation area, and the low-frequency radiating units are embedded between the high-frequency radiating units.
In the array antenna and the mounting plate device thereof, electromagnetic wave signals emitted by the high-frequency radiating unit and the low-frequency radiating unit radiate outwards, and when the antenna housing is touched, part of the electromagnetic wave signals can be reflected towards the reflecting plate. Due to the existence of the reflecting inclined plane, the partially reflected electromagnetic wave signal is reflected towards the inclined direction after being reflected again, so that the superposition of the reflected electromagnetic wave signal and the electromagnetic wave signal emitted by the high-frequency radiation unit in a certain angle range right in front of the high-frequency radiation unit is avoided. Therefore, the abnormal ripple effect generated by the directional pattern of the high-frequency radiation unit can be effectively avoided, and the antenna performance is improved.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an array antenna according to a preferred embodiment of the present invention;
fig. 2 is a cross-sectional view of the array antenna of fig. 1 along a first direction;
FIG. 3 is a top view of a reflector in one embodiment of the invention;
FIG. 4 is a cross-sectional view of the reflector of FIG. 3 taken along a first direction;
FIG. 5 is a cross-sectional view of a reflector along a first direction in another embodiment of the invention;
FIG. 6 is a schematic diagram of a high frequency radiating element pattern of the array antenna of FIG. 1;
Fig. 7 is a schematic diagram of a high frequency radiating element pattern in a conventional array antenna.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1, the present invention provides an array antenna 10 and a mounting board device 100. The array antenna 10 includes a mounting board device 100, a high-frequency radiating unit 200, and a low-frequency radiating unit 300.
The mounting board device 100 is used for mounting and carrying the high-frequency radiating unit 200 and the low-frequency radiating unit 300, and in this embodiment, the high-frequency radiating unit 200 is used for the 5G communication band, and the low-frequency radiating unit 300 is used for the 4G communication band. The high-frequency radiating units 200 are plural and generally arranged in an array, and the low-frequency radiating units 300 are embedded between the high-frequency radiating units 200. In this embodiment, 3 high-frequency radiating elements 200 form a 5G antenna subarray, and a total of 32 5G antenna subarrays are provided on the mounting board device 100 in a total of 4 rows and 8 columns.
To prevent interference between the plurality of 5G antenna sub-arrays, two adjacent 5G antenna sub-arrays are separated by a spacer 400. The spacer 400 is mainly used for constraining the directional diagram of the 5G antenna subarray and realizing homopolar and heteropolar coupling indexes of the 5G antenna subarray.
In addition, to achieve normal signal transceiving, the array antenna 10 further includes a calibration network (not shown) disposed on the back side of the mounting board device 100. The calibration network is arranged with 32 or 64 connectors, and is electrically connected with the 5G antenna subarrays through the feeding needle, so that the 5G antenna subarrays are fed.
Referring to fig. 2, a mounting board device 100 according to a preferred embodiment of the invention includes a reflective plate 110 and a reflector 120.
The reflection plate 110 may be a metal plate or a surface-metallized dielectric plate capable of reflecting electromagnetic wave signals. The reflector 110 is generally elongated to match the desired shape of the array antenna 10. The reflective plate 110 includes a bottom plate 111 and side plates 112 vertically disposed at edges of opposite sides of the bottom plate 111, and the bottom plate 111 and the side plates 112 are integrally formed. The base plate 111 is generally rectangular in shape so as to enable the outer profile of the array antenna 10 to be regular and facilitate layout.
The reflecting plate 110 has a bearing surface 113. Specifically, the bearing surface 113 is disposed on the surface of the bottom plate 111. Further, the mounting area for mounting the low frequency radiating unit 300 and the high frequency radiating unit 200 is formed on the carrying surface 113.
The reflector 120 is provided to the reflection plate 110. Specifically, the reflector 120 may be connected to the reflecting plate 110 by welding, fastening, or the like, or the reflecting plate 110 may be integrally formed. Wherein the reflectors 120 are distributed at both sides of the mounting area in the first direction. That is, there are at least two reflectors 120. Also, each reflector 120 has a reflection slope 121 extending in the second direction. The second direction is perpendicular to the first direction, and as shown in fig. 2, the first direction refers to the horizontal direction, and the second direction refers to the direction perpendicular to the plane of the drawing.
Moreover, the reflecting inclined surface 121 is disposed obliquely with respect to the carrying surface 113. That is, the reflective bevel 121 is not parallel to the bearing surface 113, nor perpendicular to the bearing surface 113.
When the array antenna 10 is operated, the high frequency radiation unit 200 and the low frequency radiation radiate electromagnetic wave signals emitted by the excitation of the high frequency current and radiate outwards. When the radome is hit, a part of the electromagnetic wave signal is reflected and incident toward the reflection plate 110. In addition, some of the electromagnetic wave signals reflected are directed perpendicularly to the surface of the reflection plate 110. If the electromagnetic wave signal is reflected by the reflection plate 110, the propagation direction thereof is turned 180 degrees, so that a reflection line is formed between the radome and the reflection plate 110.
In the conventional array antenna, the reflected electromagnetic wave signals directly up and down are overlapped with the electromagnetic wave signals emitted from the high frequency radiating unit 200 within a certain angle range right in front of the high frequency radiating unit 200, so that the pattern of the high frequency radiating unit 200 generates waves within a certain range (in a direction of ±30°, generally), and when the wave amplitude exceeds 3dB, the gain and the direction of the synthesized pattern are directly affected, resulting in poor antenna performance.
As shown in fig. 7, the horizontal plane front square wave pattern of the high frequency pattern of the conventional array antenna is very obvious, and the level value difference is greater than 3d B, resulting in a lobe width of only 39.8 degrees.
In the array antenna 10 of the present embodiment, due to the reflective inclined surface 121, the electromagnetic wave signal incident to the reflective plate 110 is blocked by the reflective inclined surface 121 and is emitted obliquely after being reflected by the reflective inclined surface 121, so that the formation of a reflective line of direct upward and downward directions between the radome and the reflective plate 110 is avoided, and further, the superposition of the reflected electromagnetic wave signal and the electromagnetic wave signal emitted from the high-frequency radiation unit 200 in a certain angle range right in front of the high-frequency radiation unit 200 is avoided. In this way, the directional pattern of the high frequency radiating element 200 is effectively prevented from generating a malformed ripple effect, thereby improving the antenna performance.
As shown in fig. 6, the horizontal plane of the pattern of the 5G antenna subarray in the array antenna 10 is entirely smooth and free from moire, and the lobe width reaches 105 degrees.
In this embodiment, the angle between the reflective inclined surface 121 and the bearing surface 113 is 30 to 45 degrees. Since the superposition of the high-frequency electromagnetic wave signal generally occurs within a range of ±30° in front of the radiation face of the high-frequency radiation unit 200, and the angle between the reflection inclined surface 121 and the bearing surface 113 is set to 30 degrees to 45 degrees, the reflected high-frequency electromagnetic wave signal can be just avoided from the above range. Thus, the performance improvement for the array antenna 10 is more pronounced.
Referring to fig. 3 to 5, in the present embodiment, the reflector 120 includes a support plate 122 and an inclined plate 123. Wherein the support plate 122 is parallel to the bearing surface 113, the inclined plate 123 is disposed on the support plate 122 and is inclined relative to the inclined plate 123, and the reflecting inclined surface 121 is formed on the surface of the inclined plate 123.
Specifically, the support plate 122 and the inclined plate 123 are generally elongated plate structures, and may be integrally formed. The swash plate 123 may be a metal plate or a dielectric plate with a metalized surface. When in installation, the supporting plate 122 is attached to the bearing surface 113. In this way, the angle between the inclined plate 123 and the supporting plate 122 is equal to the angle between the reflecting inclined surface 121 and the supporting surface 121. Therefore, the reflector 120 may be mounted to the reflecting plate 110 after the angle between the inclined plate 123 and the supporting plate 122 is adjusted to a desired angle, so that the assembly of the array antenna 10 is more convenient.
Each reflector 120 may include one or more reflective slopes 121. As shown in fig. 3, in one embodiment, each reflector 120 has one reflecting slope 121, and the width of the reflecting slope 121 is equal to a quarter wavelength of the center frequency point of the high frequency radiating element 200.
Specifically, the reflector 120 may be provided with a sloping plate 123, thereby forming a reflecting slope 121. The width refers to the dimension of the reflection inclined surface 121 in the direction perpendicular to the second direction. Since the high-frequency electromagnetic wave signal is obliquely reflected by only one reflection slope 121, the structure of the reflector 120 is simple. Moreover, the width of the radiation inclined plane 121 is equal to one quarter of the wavelength of the center frequency point of the high-frequency radiation unit 200, so that most electromagnetic wave signals emitted by the high-frequency radiation unit 200 can be smoothly reflected by the reflection inclined plane 121, and the requirement of improving the antenna performance can be met.
In another embodiment, as shown in fig. 5, each reflector 120 includes three parallel reflective slopes 121 arranged at intervals, and the widths of the three reflective slopes 121 are equal to the starting frequency point, the center frequency point and a quarter wavelength of the cut-off frequency point of the high-frequency radiating unit 200, respectively.
Specifically, three inclined plates 123 may be disposed on the reflector 120, thereby obtaining three reflecting inclined planes 121. The reflection inclined planes 121 with different widths can have a better reflection effect on electromagnetic wave signals with different frequency points. The above difference exists due to the widths of the three reflection slopes 121. Therefore, the three reflection inclined planes 121 cooperate to achieve better reflection effects on the electromagnetic wave signals of the initial frequency point, the central frequency point and the cut-off frequency point of the high-frequency radiation unit 200, so that the improvement effect on the directional diagram ripple of the high-frequency radiation unit 200 is better.
Referring again to fig. 3, in order to improve the directional diagram of the high frequency radiating element 200 and reduce the influence on the directional diagram of the low frequency radiating element 300, in the present embodiment, the reflector 120 is formed with a plurality of slits penetrating the reflecting slope 121.
The wavelength of the high-frequency electromagnetic wave signal is shorter, the diffraction phenomenon is less obvious, and therefore the diffraction performance is poor; the low-frequency electromagnetic wave signal has longer wavelength and more obvious diffraction phenomenon, so the diffraction performance is better. The slit 1211 is provided so that the reflection slope 121 can allow the low-frequency electromagnetic wave signal to pass therethrough while blocking the high-frequency electromagnetic wave signal. The high frequency electromagnetic wave signal emitted from the high frequency radiating unit 200 is reflected by the reflecting slope 121, and the low frequency electromagnetic wave signal emitted from the low frequency radiating unit 300 smoothly passes through the reflecting slope 121 and is reflected by the reflecting plate 100. Accordingly, the slit 1211 is provided such that the low frequency electromagnetic wave signal has a wave-transparent effect, and the reflector 120 has less influence on the pattern of the low frequency radiating element 300.
In this embodiment, a plurality of slits 1211 are distributed on the reflective inclined surface 121 along the second direction, each slit 1211 is U-shaped, and the openings of two adjacent slits 1211 are opposite in direction and are sleeved with each other.
The slit 1211 is U-shaped, meaning that the slit 1211 extends along a U-shaped path, having two branches, and an opening of the slit 1211 is formed between the two branches. The two slits 1211 are nested with each other, meaning that one branch of one slit 1211 is inserted into the opening of the other slit 1211. In this way, the distribution density of the plurality of slits 1211 on the reflection inclined surface 121 is larger, and the wave-transmitting effect for the low-frequency electromagnetic wave signal is more obvious.
The reflecting slope 121 shown in fig. 3 has 14U-shaped slits 1211 therein, wherein 7 slits 1211 are opened downward and the other 7 slits 1211 are opened upward. It should be noted that in other embodiments, the slit 1211 may take other shapes. Such as elongated, continuous S-shaped, etc.
Further, in the present embodiment, the length of each slit 1211 is smaller than a quarter wavelength of the center frequency point of the high-frequency radiating unit 200.
The length of the slit 1211 refers to the dimension in the extending direction thereof. For example, for a U-shaped slit 1211, the length thereof refers to the length in the U-shaped direction. By this arrangement, the high-frequency electromagnetic wave signal emitted from the high-frequency radiating unit 200 can not generate diffraction effect on the reflection inclined plane 121, and the blocking effect on the high-frequency electromagnetic wave signal is better.
Further, in the present embodiment, the sum of the lengths of the plurality of slits 1211 is equal to one half wavelength of the center frequency point of the low frequency radiating unit 300.
The sum of the lengths refers to the sum of the lengths of all the slits 1211 on the reflection slope 121. For example, if the reflecting inclined surface 121 shown in fig. 3 has 14 slits 1211, the sum of the lengths is the sum of the lengths of the 14 slits 1211. By this arrangement, the reflection inclined plane 121 has better wave-transmitting effect on the low-frequency electromagnetic wave signal emitted by the low-frequency radiation unit 300, and the influence on the directional diagram of the low-frequency radiation unit 300 is further reduced.
The array antenna 10 and the mounting board device 100 thereof, the electromagnetic wave signals emitted from the high frequency radiating unit 200 and the low frequency radiating unit 300 radiate outwards, and when the antenna housing is touched, part of the electromagnetic wave signals are reflected towards the reflecting plate 110. Due to the reflective inclined surface 121, the partially reflected electromagnetic wave signal is reflected obliquely after being reflected again, so that the superposition of the reflected electromagnetic wave signal and the electromagnetic wave signal emitted by the high-frequency radiation unit 200 in a certain angle range right in front of the high-frequency radiation unit 200 is avoided. In this way, the directional pattern of the high-frequency radiating element 200 can be effectively prevented from generating a malformed ripple effect, thereby improving the antenna performance of the array antenna 10.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. The mounting plate device is characterized by comprising a reflecting plate and a reflector arranged on the reflecting plate, wherein the reflecting plate is provided with a bearing surface, and a mounting area for mounting a low-frequency radiation unit and a high-frequency radiation unit is formed on the bearing surface; the reflectors are distributed on two sides of the mounting area in a first direction, each reflector is provided with a reflecting inclined surface extending along a second direction perpendicular to the first direction, and the reflecting inclined surfaces are obliquely arranged relative to the bearing surface; the reflector is provided with a plurality of gaps penetrating through the reflecting inclined plane, the plurality of gaps are distributed on the reflecting inclined plane along the second direction, each gap is U-shaped, and openings of two adjacent gaps are opposite in direction and are sleeved with each other.
2. The mounting plate arrangement of claim 1, wherein the angle between the reflective bevel and the bearing surface is 30 degrees to 45 degrees.
3. The mounting plate assembly of claim 1, wherein the reflector plate includes a bottom plate and side plates disposed perpendicularly to edges of opposite sides of the bottom plate, the bottom plate being integrally formed with the side plates.
4. The mounting plate arrangement of claim 1, wherein the reflective plate is a metal plate or a surface metallized dielectric plate.
5. The mounting plate arrangement of claim 1, wherein the length of each slot is less than a quarter wavelength of the center frequency point of the high frequency radiating element.
6. The mounting plate arrangement of claim 5, wherein the sum of the lengths of the plurality of slots is equal to one-half wavelength of the center frequency point of the low frequency radiating element.
7. The mounting plate device according to claim 1, wherein the reflector includes a support plate parallel to the bearing surface and a sloping plate provided to the support plate and arranged obliquely with respect to the support plate, the reflecting sloping surface being formed on a surface of the sloping plate.
8. The mounting plate arrangement of any one of claims 1 to 7, wherein each of the reflectors has one of the reflective slopes and the reflective slope has a width equal to a quarter wavelength of a center frequency point of the high frequency radiating element.
9. The mounting plate arrangement of any one of claims 1 to 7, wherein each of the reflectors comprises three reflective slopes arranged in parallel and at intervals, and the widths of the three reflective slopes are equal to a quarter wavelength of a start frequency point, a center frequency point, and a cut-off frequency point of the high frequency radiating element, respectively.
10. An array antenna, comprising:
a mounting plate arrangement as claimed in any one of claims 1 to 9; and
The high-frequency radiating units and the low-frequency radiating units are arranged in the installation area, and the low-frequency radiating units are embedded between the high-frequency radiating units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011555760.0A CN112636003B (en) | 2020-12-24 | 2020-12-24 | Array antenna and mounting plate device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011555760.0A CN112636003B (en) | 2020-12-24 | 2020-12-24 | Array antenna and mounting plate device thereof |
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| CN112636003A CN112636003A (en) | 2021-04-09 |
| CN112636003B true CN112636003B (en) | 2024-06-25 |
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| CN202011555760.0A Active CN112636003B (en) | 2020-12-24 | 2020-12-24 | Array antenna and mounting plate device thereof |
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| CN113839205B (en) * | 2021-09-22 | 2024-06-18 | 广东电网有限责任公司广州供电局 | Power transformer, power detection device and partial discharge signal monitoring antenna |
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| CN214044010U (en) * | 2020-12-24 | 2021-08-24 | 京信通信技术(广州)有限公司 | Array antenna and mounting plate device thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE19722742C2 (en) * | 1997-05-30 | 2002-07-18 | Kathrein Werke Kg | Dual polarized antenna arrangement |
| SE512439C2 (en) * | 1998-06-26 | 2000-03-20 | Allgon Ab | Dual band antenna |
| CN105390818A (en) * | 2015-10-30 | 2016-03-09 | 四川九洲电器集团有限责任公司 | Radiation device |
| KR102489141B1 (en) * | 2016-07-13 | 2023-01-13 | 엘지이노텍 주식회사 | Apparatus for wireless communication |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214044010U (en) * | 2020-12-24 | 2021-08-24 | 京信通信技术(广州)有限公司 | Array antenna and mounting plate device thereof |
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| Publication number | Publication date |
|---|---|
| CN112636003A (en) | 2021-04-09 |
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