CN214068894U - High cross polarization ratio patch antenna and communication base station - Google Patents
High cross polarization ratio patch antenna and communication base station Download PDFInfo
- Publication number
- CN214068894U CN214068894U CN202120180869.4U CN202120180869U CN214068894U CN 214068894 U CN214068894 U CN 214068894U CN 202120180869 U CN202120180869 U CN 202120180869U CN 214068894 U CN214068894 U CN 214068894U
- Authority
- CN
- China
- Prior art keywords
- patch antenna
- main
- convex structure
- substrate
- 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.)
- Active
Links
Images
Landscapes
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The application discloses high cross polarization ratio patch antenna and communication base station, patch antenna includes: the radiation device comprises a substrate, a metal reflection surface, a main radiation surface and a parasitic radiation surface; the main radiating surface is arranged on the upper surface of the substrate and provided with a main radiating sheet and a feed port; one end of the main radiating surface is provided with a convex structure, the convex structure is in a convex shape, the convex direction of the convex structure is the direction of the feed port and is parallel to the feed port, and both sides of the convex structure are connected with the feed port; the metal reflecting surface is positioned on the lower surface of the substrate and is integrally formed by laser etching or selective electroplating technology; the parasitic radiation surface comprises a parasitic radiation piece which is arranged right above the main radiation piece in parallel, and the parasitic radiation piece is fixed on the substrate through a support column. Adopt aforementioned structure, set up protruding type structure through at main radiation piece, improve the polarization purity of main radiation face, and then improve patch antenna's cross polarization ratio, in addition, this application structure adopts two feed points, makes patch antenna winding displacement simple.
Description
Technical Field
The application relates to the technical field of mobile communication base stations, in particular to a patch antenna with a high cross polarization ratio and a communication base station.
Background
Most of traditional communication base station antennas utilize +/-45-degree crossed dipole antennas as oscillators, and the oscillators have the advantages of wide frequency, high isolation, high cross polarization ratio and the like. However, in order to ensure good reflection characteristics of the dipole antenna, the height of the front of the dipole antenna from the ground is usually required to be kept at a distance of about a quarter wavelength. And the reduction of the height of the antenna array is a great trend in the technology age of the 5G communication base station. Therefore, in the severe restriction requirement of the 5G communication base station on the height of the antenna array, the element type of the dipole antenna is not dominant in reducing the height of the antenna array.
In the design aiming at the low-profile oscillator, the patch antenna belongs to a better choice, the height of the oscillator can be greatly reduced by the patch antenna, and the requirement of a 5G communication base station can be met. Therefore, more and more 5G communication base stations employ patch antennas. However, the patch antenna has a problem of low cross polarization ratio, and the cross polarization ratio is an important index for measuring the antenna radiation performance and the coverage effect, and specifically refers to a ratio of a main polarization component to a cross polarization component of the antenna, which represents the polarization purity of the base station antenna, so that the low cross polarization ratio will affect the network coverage effect and the uplink communication quality. In order to improve the cross polarization ratio of the patch antenna, the polarization purity is conventionally improved by using a four-probe differential feeding method, for example, two pairs of probes are arranged in equal amplitude and opposite phase (i.e., 180 degrees out of phase) to achieve the effect of improving the polarization purity, thereby improving the cross polarization ratio of the patch antenna.
SUMMERY OF THE UTILITY MODEL
The application provides a high cross polarization ratio patch antenna and a communication base station so as to obtain the patch antenna with the high cross polarization ratio and simple wire arrangement.
In a first aspect, an embodiment of the present application provides a patch antenna with a high cross-polarization ratio, including: the radiation device comprises a substrate, a metal reflection surface, a main radiation surface and a parasitic radiation surface;
the main radiating surface is arranged on the upper surface of the substrate and provided with a main radiating sheet and a feed port;
the main radiation surface is formed on the upper surface of the substrate in a copper-clad, laser etching or selective electroplating mode;
one end of the main radiating surface is provided with a convex structure, the convex structure is in a convex shape, the convex direction of the convex structure is the direction of the feed port and is parallel to the feed port, and two sides of the convex structure are both connected with the feed port;
the metal reflecting surface is positioned on the lower surface of the substrate and is integrally formed by laser etching or selective electroplating technology, so that the metal reflecting surface and the main radiating sheet on the upper surface of the substrate finally form a microstrip antenna for radiating electromagnetic waves outwards;
the parasitic radiation surface comprises a parasitic radiation piece, the parasitic radiation piece is arranged right above the main radiation piece in parallel, and the parasitic radiation piece is fixed on the substrate through a support column.
With reference to the first aspect, in one implementation manner, the high cross-polarization ratio patch antenna further includes: a partition wall;
the isolation walls are metal isolation walls, the isolation walls are vertically arranged on two sides of the base plate, the number of the isolation walls is two, and the two isolation walls are arranged in parallel.
With reference to the first aspect, in one implementation manner, the other end of the main radiation piece, which is opposite to the convex structure, is provided with a trapezoidal structure, and the main radiation piece is of an integrally formed structure.
With reference to the first aspect, in one implementation manner, a gap is provided between the convex structure and the feed port, the length of the feed port is greater than the protruding length of the convex structure, and an outer edge of the feed port is flush with an outer edge of the convex structure; wherein, the outer edge of the feeding port is a side far away from the convex structure.
With reference to the first aspect, in one implementation manner, the substrate is made of modified plastic.
With reference to the first aspect, in one implementation manner, the support columns are four plastic support columns, and the parasitic radiation piece is fixed to the four plastic support columns by using a metal sheet.
With reference to the first aspect, in an implementation manner, there is further provided between the substrate and the main radiation surface: the multiple patch antennas with high cross polarization ratio are connected through transmission lines to form a multi-element antenna array.
With reference to the first aspect, in one implementation manner, the main radiation piece is smaller than the parasitic radiation piece, and the main radiation piece and the parasitic radiation piece are placed opposite to each other.
In a second aspect, an embodiment of the present application provides a communication base station, where the base station includes a patch antenna with a high cross-polarization ratio as described in any one of the implementation manners of the first aspect.
The application discloses high cross polarization ratio patch antenna and communication base station, patch antenna includes: the radiation device comprises a substrate, a main radiation surface, a metal reflection surface and a parasitic radiation surface; the main radiation surface is arranged on the upper surface of the substrate and is formed on the upper surface of the substrate in a copper-clad, laser etching or selective electroplating mode; the main radiation surface is provided with a main radiation sheet and a feed port; one end of the main radiating surface is provided with a convex structure, the convex structure is in a convex shape, the convex direction of the convex structure is the direction of the feed port and is parallel to the feed port, and two sides of the convex structure are both connected with the feed port; the metal reflecting surface is positioned on the lower surface of the substrate and is integrally formed by laser etching or selective electroplating technology, so that the metal reflecting surface and the main radiating sheet on the upper surface of the substrate finally form a microstrip antenna for radiating electromagnetic waves outwards; the parasitic radiation surface comprises a parasitic radiation piece, the parasitic radiation piece is arranged above the main radiation piece in parallel, and the parasitic radiation piece is fixed on the substrate through a support column. By adopting the structure, the convex structure is arranged on the main radiating sheet, so that the current distribution is concentrated to the single feed port, the polarization purity of the main radiating surface is improved, and the cross polarization ratio of the patch antenna is further improved.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of an overall structure of a patch antenna with a high cross-polarization ratio according to an embodiment of the present application;
fig. 2 is a top view of a patch antenna with a high cross-polarization ratio according to an embodiment of the present application;
FIG. 3 is a graph of a current distribution of a main radiator in an embodiment provided by an embodiment of the present application;
fig. 4 is a radiation pattern of a prior art patch antenna element;
fig. 5 is a high cross-polarization ratio patch antenna radiation pattern disclosed in an embodiment of the present application.
Wherein, 1-substrate, 11-support column; 2-main radiating surface, 21-main radiating sheet, 211-convex structure, 22-feeding port; 3-parasitic radiating surface, 31-parasitic radiating sheet; 4-a separation wall; 5-metal reflecting plate.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
As can be known from the description of the background art, the cross polarization ratio specifically refers to a ratio of a main polarization component to a cross polarization component of an antenna, and is used to represent polarization purity of the antenna; the larger the cross polarization ratio is, the stronger the orthogonality of the signals obtained from the antenna is, and the smaller the correlation between the two signals is, thereby bringing about good network coverage effect and excellent uplink communication quality. Therefore, finding a method capable of improving the cross-polarization ratio of the patch antenna is of great significance in the technical field of 5G base stations. The embodiment of the application takes a Massive MIMO patch antenna as a research object, the surface current distribution condition of the patch antenna is analyzed through simulation, and then the structural form of a main radiation piece of the patch antenna is optimized, so that the cross polarization ratio characteristic of the antenna is greatly improved, and the patch antenna with the high cross polarization ratio is obtained.
In order to solve the above problems, the present application is based on the design of the patch antenna itself, because two polarizations of the main radiating surface are directly and physically connected, mutual interference is relatively easy, so that the conventional design easily causes the problem of disordered distribution of surface current and further cross polarization ratio, and the like, so that the present application analyzes the current distribution situation on the main radiating patch by means of simulation means on the premise of not changing the basic form of the radiating element, and finds that the electromagnetic wave of the feed signal presents a transmission mode in the feed network, and when the electromagnetic wave enters the main radiating patch from the feed network, the electromagnetic wave is converted from the transmission mode into a radiation mode, so that at the connection point of the feed network and the main radiating patch, the surface electromagnetic wave presents a large sudden change, and further forms a high order mode at the connection point, and finally causes the disordered distribution of the current entering the radiating patch, so that the whole radiation effect of the antenna is deteriorated, it is difficult for each radiation performance index to meet the expected target requirement, so that the design form of the antenna unit is not changed and the additional design and processing difficulty is not increased. The application discloses the following scheme:
referring to fig. 1 and 2, an embodiment of the present application provides a high cross-polarization ratio patch antenna, where fig. 1 is a schematic diagram of an overall structure of the high cross-polarization ratio patch antenna, and fig. 2 is a top cross-sectional view of the high cross-polarization ratio patch antenna, and the high cross-polarization ratio patch antenna includes: a substrate 1, a metal reflecting surface (not shown), a main radiating surface 2 and a parasitic radiating surface 3.
Optionally, the metal reflecting surface is located on the lower surface of the substrate 1, and the metal reflecting surface is integrally formed by laser etching or selective plating technology, so that the metal reflecting surface and the main radiating patch 21 on the upper surface of the substrate 1 finally form a microstrip antenna for radiating electromagnetic waves outwards.
The material of base plate 1 is modified plastics, base plate 1 will be processed with injection moulding technology, base plate 1 includes the plastics barricade, the strengthening rib to and plastic support post 11.
The modified plastic had a relative dielectric constant of 4 and a tangent loss of 0.005. The modified plastic can be added with corresponding filling materials or change the processing technology according to the requirements of the actual environment, so that the performances of the modified plastic in the aspects of flame retardance, strength, impact resistance, toughness and the like are improved, and the modified plastic is suitable for the use environment.
A large metal reflecting plate 5 is further arranged right below the substrate 1, and the metal reflecting plate 5 is used for installing and fixing the antenna body and has the function of reflecting electromagnetic waves, so that the antenna obtains higher radiation gain.
The main radiating surface 2 is arranged on the upper surface of the substrate 1, and the main radiating surface 2 is provided with a main radiating patch 21 and a feed port 22.
The main radiating plate 21 is connected to the two feeding ports 22, and the two feeding ports 22 are disposed at one end of the main radiating plate 21 and are opposite to each other.
The one end of main radiating surface 2 is provided with protruding type structure 211, that is the one end of main radiating fin 21 is provided with protruding type structure 211, the shape of protruding type structure 211 is the type of dogbone, the protruding direction of protruding type structure 211 does feed mouthful 22's direction, and with feed mouthful 22 is parallel, feed mouthful 22 is all connected to the both sides of protruding type structure 211.
The main radiating piece 21 is made in a laser etching and plating mode, and the antenna can have better signal transmitting and receiving capacity due to the laser etching and plating mode.
In this embodiment, the convex structure 211 is a convex structure formed by protruding the middle of one end of the main radiation sheet 21 close to the feeding port 22, the inner angle of the protruding portion is 90 degrees, the protruding portion of the convex structure 211 is parallel to the feeding port 22, the two feeding ports 22 are respectively disposed on two sides of the convex structure 211, that is, a boss structure is added between the two feeding ports to improve current distribution, so as to improve cross polarization ratio of the antenna, and structural design can also be performed by extending a branch section or a slot through the feeding port, so that the current balance on the surface of the antenna is finally achieved.
The convex structure 211 can modify the path through which the surface current of the main radiating surface 2 flows (i.e. the current flows in the direction of ± 45 degrees), so that the current distribution is concentrated towards the single feed port 22, the polarization purity of the main radiating surface 2 is improved, and the cross polarization ratio of the patch antenna is further improved; as shown in fig. 3, (a) in fig. 3 is a current distribution diagram of the main radiation surface 2 without the convex structure 211, and (b) in fig. 3 is a current distribution diagram of the main radiation surface 2 with the convex structure 211 added, as can be seen from (a) in fig. 3, the current distribution is quite dispersed and disordered from the view of the current distribution of the main radiation surface 2, which greatly affects the purity of polarization and reduces the cross polarization ratio characteristic; however, from the current distribution of the main radiating surface 2 in the diagram (b) in fig. 3, due to the convex structure 211, the current distribution starts to concentrate toward the single feed port 22, which greatly improves the polarization purity, and therefore, the cross polarization ratio characteristic of the antenna is greatly improved.
Compared with the existing structure, the axial cross polarization ratio of the high-cross polarization ratio patch antenna disclosed by the application is improved by at least more than 10dB, for example, in a 3.8GHz frequency band, the axial cross polarization ratio is 26.02dB, in a 3.7GHz frequency band, the axial cross polarization ratio is 25.22dB, and in a 3.3GHz frequency band, the axial cross polarization ratio is 21.64 dB.
The parasitic radiation surface 3 comprises a parasitic radiation sheet 31, the parasitic radiation sheet 31 is arranged in parallel right above the main radiation sheet 21, and the parasitic radiation sheet 31 is fixed on the substrate 1 through a support column 11.
The parasitic radiation surface 3 serves as a parasitic structure of the main radiation surface 2, and the parasitic radiation surface 3 is provided with a parasitic radiation sheet 31, which mainly plays a role in increasing the bandwidth of the antenna. The parasitic radiation piece 31 has a square structure. The parasitic radiation piece 31 is arranged in parallel right above the main radiation piece 21 through a support column 11.
Further, if the number of the patch antennas with high cross polarization ratio is multiple, the multiple patch antennas with high cross polarization ratio are connected through transmission lines to form a multi-element antenna array.
In this embodiment, since the structure of the present application adopts two-point feeding, there is no differential feeding of four probes, so compared with the prior art, the patch antenna of the present application has a simple flat cable.
The high cross polarization ratio patch antenna belongs to a double-layer structure, namely, the first layer on the upper surface of the substrate 1 is a feed port and a main radiation surface 2 layer, the second layer (namely, the top layer) is a parasitic structure of the main radiation surface 2, better radiation directivity is obtained through electromagnetic coupling, and meanwhile, the bandwidth characteristic of an antenna unit can also be improved. According to the antenna, the convex structure 211 is added to the first-layer main radiating surface 2, namely, the convex structure is added to the feeding ports of the two polarizations of the main radiating plate 21, so that the path (namely, the direction of +/-45 degrees) through which the surface current of the main radiating surface 2 flows is corrected, the current distribution of the antenna tends to be more uniform, and the cross polarization ratio of the patch antenna is improved.
The application discloses high cross polarization ratio patch antenna, patch antenna includes: the radiation device comprises a substrate 1, a main radiation surface 2, a metal reflection surface and a parasitic radiation surface 3; the main radiation surface 2 is arranged on the upper surface of the substrate 1, and is formed on the upper surface of the substrate 1 in a copper-clad, laser etching or selective electroplating mode; the main radiating surface 2 is provided with a main radiating sheet 21 and a feed port 22; a convex structure 211 is arranged at one end of the main radiating surface 21, the convex structure 211 is in a convex shape, the convex direction of the convex structure 211 is the direction of the feed port 22 and is parallel to the feed port 22, and both sides of the convex structure 211 are connected with the feed port 22; the metal reflecting surface is positioned on the lower surface of the substrate 1 and is integrally formed by laser etching or selective electroplating technology, so that the metal reflecting surface and the main radiating sheet 21 on the upper surface of the substrate 1 finally form a microstrip antenna for radiating electromagnetic waves outwards; the parasitic radiation surface 3 comprises a parasitic radiation sheet 31, the parasitic radiation sheet 31 is arranged in parallel right above the main radiation sheet 21, and the parasitic radiation sheet 31 is fixed on the substrate 1 through a support column 11. By adopting the structure, the convex structure 211 is arranged on the main radiating sheet 21, so that the current distribution is concentrated to the single feed port 22, the polarization purity of the main radiating surface 2 is improved, the cross polarization ratio of the patch antenna is further improved, the same convex structure 211 can also concentrate the current of the other feed port to the other end, so that the currents of two polarizations can be uniformly distributed, better directivity is obtained, and better polarization purity is finally obtained.
According to the scheme, the structural form of the feed port of the radiating patch is ingeniously changed, so that the higher modes generated due to the current mutation at the feed port are eliminated, and compared with the mode of changing the radiating unit into a complex differential feed or dipole mode and the like, the radiating patch antenna has a simpler design form, the cross polarization ratio of the patch antenna can be greatly improved, and the application of a 5G communication base station is met.
Further, the high cross polarization ratio patch antenna further includes: a partition wall 4;
the partition wall 4 is metal partition wall 4, the perpendicular setting of partition wall 4 is in the both sides of base plate 1, its quantity is two, two partition wall 4 parallel arrangement, partition wall 4 can make its and metal reflecting plate integrated into one piece through the form of in-mould shaping or laser cutting, has increased holistic reliability.
In this embodiment, the metal isolation walls 4 are disposed on two sides of the substrate 1 in pairs, the isolation walls 4 are similar to concave structures, the grooves of the concave structures are deep and almost close to the bottom edges, and the widths of the grooves are greater than the widths of the protruding portions on two sides.
Alternatively, the other end of the main radiation sheet 21 opposite to the convex structure 211 is provided with a trapezoid structure, and the main radiation sheet 21 is an integrally formed structure.
The current shown runs from the oblique side of the trapezoid in the direction of the feed opening 22.
Optionally, a gap is provided between the convex structure 211 and the feed port 22, the length of the feed port 22 is greater than the protruding length of the convex structure 211, and the outer edge of the feed port 22 is flush with the outer edge of the convex structure 211; wherein the outer edge of the feeding port 22 is a side away from the convex structure 211.
Optionally, the supporting columns 11 are four plastic supporting columns 11, and the parasitic radiation piece 31 is fixed at the four plastic supporting columns 11 by using a metal sheet.
The parasitic radiation piece 31 is fixed at the four plastic support columns 11 by a metal sheet hot melting mode.
Optionally, the main radiating plate 21 is flush with the parasitic radiating plate 31 at an end near the feed port 22.
Because the high cross polarization ratio patch antenna of this application utilizes plastics gilding and sheetmetal hot melt technology, therefore the antenna of this application in the aspect of the uniformity, than traditional PCB assembly process, has obvious advantage.
In order to make the beneficial effects of the patch antenna more clear, the embodiment of the present application further discloses an effect comparison between the patch antenna with a high polarization ratio and the patch antenna in the prior art, which is specifically as follows:
referring to fig. 4, fig. 4 is a radiation pattern of a conventional patch antenna unit in the prior art, where the abscissa theta (deg) is an angle and the ordinate Y1 represents normalized levels of main polarization and cross polarization radiation fields, it can be seen that the main polarization pattern of the antenna unit has relatively poor convergence, especially the pattern is locally divergent near the backward region, and the cross polarization component has a relatively high camber component in the axial direction, which is in concert with the current divergence of the pattern (a) in fig. 3, and finally results in a relatively poor cross polarization ratio, especially the axial component is as low as 12dB, which is less than 15dB required in general engineering.
Fig. 5 is a cross polarization ratio radiation pattern of the antenna disclosed in the embodiment of the present application, where the abscissa theta (deg) is an angle, and the ordinate Y1 represents the normalized level of the main polarization and cross polarization radiation field, it can be seen that the cross polarization ratio characteristic of the antenna disclosed in the present application is greatly improved compared with that of fig. 4. The lowest point of the axial cross polarization ratio can reach more than 21dB, and compared with the prior art, the axial cross polarization ratio of the antenna unit is improved by about 10 dB. Therefore, the mode of adding the convex structure proposed by the application can greatly improve the cross polarization ratio characteristic by modifying the current path of the main radiation surface. Therefore, the method for improving the cross polarization ratio of the antenna by adding the boss at the feed port of the patch is essentially characterized in that the structural form of the feed port which is easy to generate a higher-order mode is optimized, so that the surface current on the radiation patch is balanced, and the influence of the higher-order mode is eliminated finally.
It can be seen from the above that, the structure improvement of the patch antenna of the present application is very significant to the improvement of the cross polarization ratio characteristic of the antenna. Therefore, the antenna structure is suitable for various double-layer patch antenna structures similar to the antenna structure for example, the problem that the 5G-era low-height patch antenna requires improvement of cross polarization ratio is widely applied, meanwhile, the antenna structure is not limited to a double-layer patch antenna form, can be designed for a single-layer patch antenna, and is designed for direct feed and coupling probe feed. The present application is not particularly limited.
Based on the above-disclosed patch antenna with high cross polarization ratio, the embodiment of the present application further provides a communication base station, where the base station includes the patch antenna with high cross polarization ratio as described in any one of the above implementation manners.
The present application has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to limit the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the presently disclosed embodiments and implementations thereof without departing from the spirit and scope of the present disclosure, and these fall within the scope of the present disclosure. The protection scope of this application is subject to the appended claims.
Claims (9)
1. A high cross-polarization ratio patch antenna, comprising: the radiation device comprises a substrate, a metal reflection surface, a main radiation surface and a parasitic radiation surface;
the main radiating surface is arranged on the upper surface of the substrate and provided with a main radiating sheet and a feed port;
the main radiation surface is formed on the upper surface of the substrate in a copper-clad, laser etching or selective electroplating mode;
one end of the main radiating surface is provided with a convex structure, the convex structure is in a convex shape, the convex direction of the convex structure is the direction of the feed port and is parallel to the feed port, and two sides of the convex structure are both connected with the feed port;
the metal reflecting surface is positioned on the lower surface of the substrate and is integrally formed by laser etching or selective electroplating technology, so that the metal reflecting surface and the main radiating sheet on the upper surface of the substrate finally form a microstrip antenna for radiating electromagnetic waves outwards;
the parasitic radiation surface comprises a parasitic radiation piece, the parasitic radiation piece is arranged right above the main radiation piece in parallel, and the parasitic radiation piece is fixed on the substrate through a support column.
2. The high cross-polarization ratio patch antenna according to claim 1, further comprising: a partition wall;
the isolation walls are metal isolation walls, the isolation walls are vertically arranged on two sides of the base plate, the number of the isolation walls is two, and the two isolation walls are arranged in parallel.
3. The patch antenna of claim 1, wherein the main radiating patch is disposed in a trapezoidal structure at the other end of the convex structure, and the main radiating patch is an integrally formed structure.
4. A patch antenna with high cross-polarization ratio according to claim 1, wherein a gap is provided between the convex structure and the feed port, the length of the feed port is greater than the convex length of the convex structure, and the outer edge of the feed port is flush with the outer edge of the convex structure; wherein, the outer edge of the feeding port is a side far away from the convex structure.
5. The patch antenna of claim 1, wherein the substrate is made of modified plastic.
6. The patch antenna of claim 1, wherein the support posts are four plastic support posts, and the parasitic radiation patch is fixed to the four plastic support posts by a metal foil.
7. The patch antenna with high cross-polarization ratio of claim 1, wherein the plurality of patch antennas with high cross-polarization ratio are connected by transmission lines to form a multi-element antenna array.
8. The patch antenna of claim 1, wherein the main radiating patch is smaller than the parasitic radiating patch, and the main radiating patch is disposed opposite to the parasitic radiating patch.
9. A telecommunications base station, characterized in that the base station comprises a high cross-polarization ratio patch antenna according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120180869.4U CN214068894U (en) | 2021-01-22 | 2021-01-22 | High cross polarization ratio patch antenna and communication base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120180869.4U CN214068894U (en) | 2021-01-22 | 2021-01-22 | High cross polarization ratio patch antenna and communication base station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214068894U true CN214068894U (en) | 2021-08-27 |
Family
ID=77393034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120180869.4U Active CN214068894U (en) | 2021-01-22 | 2021-01-22 | High cross polarization ratio patch antenna and communication base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214068894U (en) |
-
2021
- 2021-01-22 CN CN202120180869.4U patent/CN214068894U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11735807B2 (en) | Antenna module and electronic device | |
| US6747606B2 (en) | Single or dual polarized molded dipole antenna having integrated feed structure | |
| US20140035792A1 (en) | Microstrip-Fed Crossed Dipole Antenna | |
| EP0976171B1 (en) | A method for improving antenna performance parameters and an antenna arrangement | |
| CN108736147A (en) | A kind of ultra wide band Vivaldi circular polarisation phased array antenna units | |
| US20210367323A1 (en) | Patch antenna unit and antenna in package structure | |
| CN106129593A (en) | A kind of all-metal Phased Array Radar Antenna unit of two dimension wide angle scanning | |
| CN110854550A (en) | Antenna array, base station antenna and antenna index improving method | |
| US7705785B2 (en) | Antenna patch arrays integrally formed with a network thereof | |
| CN112952369A (en) | Broadband +/-45-degree dual-polarized millimeter wave end-fire antenna and array thereof | |
| WO2023092469A1 (en) | Antenna device | |
| CN112864600A (en) | High cross polarization ratio patch antenna and communication base station | |
| CN109713440A (en) | A kind of antenna element and array antenna | |
| EP3516738B1 (en) | Antenna device including parabolic-hyperbolic reflector | |
| CN113300124A (en) | Right-hand circularly polarized array antenna based on slot waveguide technology | |
| CN214068894U (en) | High cross polarization ratio patch antenna and communication base station | |
| CN107394391B (en) | Broadband directional diagram diversity patch antenna | |
| CN114069260B (en) | Antenna system and electronic equipment comprising same | |
| CN110739536B (en) | Half-mode Vivaldi antenna and miniaturized large-angle frequency scanning antenna array | |
| CN217334399U (en) | Broadband high-polarization isolation antenna and antenna array | |
| TWI848405B (en) | Base station antenna | |
| CN212626029U (en) | Antenna assembly and router | |
| CN116666977B (en) | Multi-beam dielectric resonator end-fire antenna | |
| CN215418582U (en) | Antenna with a shield | |
| CN217656069U (en) | Dual-frequency antenna, remote controller and unmanned aerial vehicle system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |