CN216698722U - Built-in antenna of small base station - Google Patents
Built-in antenna of small base station Download PDFInfo
- Publication number
- CN216698722U CN216698722U CN202220192688.8U CN202220192688U CN216698722U CN 216698722 U CN216698722 U CN 216698722U CN 202220192688 U CN202220192688 U CN 202220192688U CN 216698722 U CN216698722 U CN 216698722U
- Authority
- CN
- China
- Prior art keywords
- assembly
- radio frequency
- antenna
- frequency cable
- units
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model provides a built-in antenna of a small base station, which comprises: the antenna comprises at least two radiating units, an antenna cover, T/R assemblies and radio frequency cable assemblies with the same number as the radiating units; the back surfaces of the at least two radiation units are connected with the inner surface of the antenna housing, and the at least two radiation units are arranged in the antenna housing in a rectangular array mode, wherein the polarization direction between every two adjacent radiation units is vertical, and a folding monopole form is adopted in each radiation unit; one end of the radio frequency cable assembly is connected with the corresponding radiation unit, and the other end of the radio frequency cable assembly is connected with the T/R assembly; the T/R assembly is also connected to the inner surface of the radome. In the small base station built-in antenna, the plurality of radiating units are arranged in the antenna housing in a rectangular array mode, and the polarization directions of the adjacent radiating units are vertical, so that the orthogonality and the isolation between the adjacent radiating units are guaranteed. Meanwhile, the radiation units are all in a folding monopole form, and the antenna is guaranteed to have high radiation efficiency.
Description
Technical Field
The utility model relates to the technical field of antennas, in particular to a built-in antenna of a small base station.
Background
In the construction of a 5G mobile communication network in a 700MHz frequency band, the small base station has good market prospect in a covering blind-filling and digital indoor distribution system outside a room. The small base station usually adopts an antenna built-in miniaturization design, adopts a 4T/4R signal mode, and requires that a radiating antenna of each channel has excellent characteristic efficiency, while obtaining excellent MIMO (Multiple Input Multiple Output) performance requires excellent isolation between the antennas. At present, the existing antenna of the 5G mobile communication network small base station usually adopts a matching antenna, which is suitable for the small base station in the middle and high frequency bands, and for the small base station in the low frequency 700MHz frequency band, in order to obtain better antenna efficiency, the matching antenna has a larger height and cannot meet the requirement of the small base station on the low profile, and meanwhile, the isolation between the antenna units is poor due to the current crawling effect of the horizontal plane, and the system requirement cannot be met. Therefore, in view of the 700M band characteristic, how to achieve high antenna efficiency and isolation between antenna units is a key technology of products on the premise of ensuring miniaturization of the internal antenna.
In summary, the conventional small base station antenna cannot realize high efficiency of the antenna and ensure excellent isolation between antenna units on the premise of ensuring miniaturization of the antenna.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a small base station built-in antenna to solve the technical problem that the conventional small base station antenna cannot achieve high antenna efficiency and ensure excellent isolation between antenna units on the premise of ensuring built-in miniaturization.
The utility model provides a built-in antenna of a small base station, which comprises: the antenna comprises at least two radiation units, an antenna housing, T/R assemblies and radio frequency cable assemblies, wherein the number of the radio frequency cable assemblies is the same as that of the radiation units;
the back surfaces of at least two radiation units are connected with the inner surface of the antenna housing, and the at least two radiation units are arranged in the antenna housing in a rectangular array mode, wherein the polarization direction between every two adjacent radiation units is vertical, and a folding monopole form is adopted in each radiation unit;
one end of the radio frequency cable assembly is connected with the corresponding radiation unit, and the other end of the radio frequency cable assembly is connected with the T/R assembly;
the T/R assembly is also coupled to an inner surface of the radome.
Furthermore, the radiation unit is a single-sided PCB, foam is arranged on the back of the single-sided PCB, and the foam is connected with the inner surface of the antenna housing through an adhesive tape.
Further, the front side of the single-sided PCB board includes: the device comprises a fold line monopole, a feeder core wire welding point and a feeder shielding welding point.
Further, the radio frequency cable assembly includes: a radio frequency cable connector assembly;
the radio frequency cable connector assembly is used for establishing connection between the T/R assembly corresponding to the radio frequency cable connector assembly and the radiating unit corresponding to the radio frequency cable connector assembly.
Further, the method also comprises the following steps: installing a clamp;
the mounting clip is attached to the back of the T/R assembly.
Further, the structure of the mounting fixture comprises any one of the following structures: pole holding structure or wall hanging structure.
Further, the T/R assembly is connected with the inner surface of the antenna housing through a sealing glue.
Furthermore, one end of the radio frequency cable assembly is connected with the corresponding feeder shielding welding point of the radiating unit, and the other end of the radio frequency cable assembly is connected with the port of the T/R assembly.
Further, the polarization direction includes: a vertical polarization direction and a horizontal polarization direction.
Further, the number of at least two of the radiation units is 4.
In the embodiment of the utility model, the built-in antenna of the small base station comprises: the antenna comprises at least two radiating units, an antenna cover, T/R assemblies and radio frequency cable assemblies with the same number as the radiating units; the back surfaces of the at least two radiation units are connected with the inner surface of the antenna housing, and the at least two radiation units are arranged in the antenna housing in a rectangular array mode, wherein the polarization direction between every two adjacent radiation units is vertical, and a folding monopole form is adopted in each radiation unit; one end of the radio frequency cable assembly is connected with the corresponding radiation unit, and the other end of the radio frequency cable assembly is connected with the T/R assembly; the T/R assembly is also connected to the inner surface of the radome. According to the small base station built-in antenna disclosed by the utility model, the plurality of radiating units are arranged in the antenna housing in the form of the rectangular array, and the orthogonality of the adjacent radiating units is ensured and the isolation between the radiating units is improved by changing the polarization directions of the adjacent radiating units. Meanwhile, each radiation unit of the utility model adopts a folding monopole form, thereby ensuring that the antenna has higher radiation efficiency, and effectively solving the technical problems that the high efficiency of the antenna and the excellent isolation among the antenna units can not be realized on the premise of ensuring the miniaturization of the built-in small base station antenna in the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of an internal antenna of a small base station according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a rectangular array of radiating elements according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an internal structure of a radiation unit according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an rf cable connector assembly according to an embodiment of the present invention.
Icon: 11-a radiating element; 12-a radome; 13-T/R module; 14-a radio frequency cable assembly; 111-foam cotton; 112-a litz-wire monopole; 113-feeder core wire solder joints; 114-feed shield pads; 141-radio frequency cable connector assembly.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For the convenience of understanding the present embodiment, a detailed description will be first given of an antenna built in a small base station disclosed in the present embodiment.
Fig. 1 is a schematic structural diagram of an internal antenna of a small base station in this embodiment, and fig. 2 is a schematic structural diagram of a rectangular array of radiating elements in this embodiment, as shown in fig. 1 and fig. 2, the internal antenna of a small base station includes: at least two radiating units 11, an antenna cover 12, T/R assemblies 13 and radio frequency cable assemblies 14 with the same number as the radiating units 11;
the back surfaces of the at least two radiation units 11 are connected with the inner surface of the radome 12, and the at least two radiation units 11 are arranged in the radome 12 in a rectangular array, wherein the polarization direction between two adjacent radiation units 11 is vertical, and a folding monopole form is adopted in each radiation unit 11;
one end of the radio frequency cable assembly 14 is connected with the corresponding radiation unit 11, and the other end of the radio frequency cable assembly 14 is connected with the T/R assembly 13;
the T/R assembly 13 is also attached to the inner surface of the radome 12.
Specifically, the antenna of the small base station of the current 5G mobile communication network generally adopts a matching antenna, which is suitable for the small base station of the middle and high frequency bands, and for the small base station of the low frequency 700MHz frequency band, the antenna can not meet the requirement of the low profile, and simultaneously, the current crawling effect of the horizontal plane also makes the isolation between the antenna units poor, and can not meet the application requirement of the small base station of the low frequency 700MHz frequency band. Therefore, referring to fig. 2 (only one radiating element and one radio frequency cable assembly are labeled in fig. 2, and other structures that are the same as the labeled positions are also respectively a radiating element and a radio frequency cable assembly), in the embodiment of the present invention, a plurality of radiating elements 11 are placed on the inner surface of the radome 12 in a rectangular array layout manner, and meanwhile, the radiating elements 11 in the rectangular array need to ensure that the polarization directions of adjacent radiating elements 11 are perpendicular, so that the orthogonality of adjacent radiating elements 11 is effectively ensured, and the requirements of good MIMO performance on orthogonality and isolation of the built-in antenna of the small base station can be met.
In addition, each radiation unit 11 is internally provided with a folding monopole form, so that the design requirement of miniaturization of the antenna unit is met, the resonance requirement of low frequency 700MHz of the small base station is met, and the built-in antenna of the small base station has high radiation efficiency. Meanwhile, as shown in fig. 2, each radiating element 11 is correspondingly connected to a radio frequency cable assembly 14, and the other end of the radio frequency cable assembly 14 is correspondingly connected to a port of a T/R assembly 13 of the small base station internal antenna, where the T/R assembly 13 is located below the matrix array of the plurality of radiating elements 11 and is connected to the inner surface of the radome 12.
In the embodiment of the utility model, the built-in antenna of the small base station comprises: at least two radiating units 11, an antenna cover 12, T/R assemblies 13 and radio frequency cable assemblies 14 with the same number as the radiating units 11; the back surfaces of the at least two radiation units 11 are connected with the inner surface of the radome 12, and the at least two radiation units 11 are arranged in the radome 12 in a rectangular array, wherein the polarization direction between two adjacent radiation units 11 is vertical, and a folding monopole form is adopted in each radiation unit 11; one end of the radio frequency cable assembly 14 is connected with the corresponding radiation unit 11, and the other end of the radio frequency cable assembly 14 is connected with the T/R assembly 13; the T/R assembly 13 is also attached to the inner surface of the radome 12. As can be seen from the above description, in the small base station internal antenna of the present invention, the plurality of radiation units 11 are arranged in the radome 12 in the form of a rectangular array, and the polarization direction of the adjacent radiation units 11 is changed, so that the orthogonality of the adjacent radiation units 11 is ensured, and the isolation between the radiation units 11 is improved. Meanwhile, each radiation unit 11 of the utility model adopts a folding monopole form, thereby ensuring that the antenna has higher radiation efficiency, and effectively solving the technical problems that the high efficiency of the antenna and the excellent isolation among the antenna units can not be realized on the premise of ensuring the miniaturization of the built-in small base station antenna in the prior art.
The above description briefly introduces the structure of the small base station built-in antenna of the present invention, and the details thereof are described in detail below.
In an optional embodiment of the present invention, the radiating element 11 is a single-sided PCB, and a foam pad 111 is disposed on a back surface of the single-sided PCB, and the foam pad 111 is connected to an inner surface of the radome 12 through an adhesive tape.
Specifically, the radiation unit 11 of the small base station built-in antenna of the present invention is made of a single-sided PCB, and the foam 111 is adhered to the back surface of the PCB circuit board, and further the foam 111 is adhered to the inner surface of the radome 12 by a 3M adhesive tape.
In an alternative embodiment of the present invention, referring to fig. 3, the front side of the single-sided PCB board includes: a folded wire monopole 112, a feed core wire solder joint 113, and a feed shield solder joint 114.
Specifically, as shown in fig. 3, the front surface of the single-sided PCB circuit board of each radiation unit 11 includes: the antenna comprises a folded line monopole 112, a feeder core wire welding point 113 and a feeder shielding welding point 114, wherein the shaded area in fig. 3 is the folded line monopole 112, the folded line monopole 112 ensures that the built-in antenna of the small base station has higher radiation efficiency, the size of each radiation unit 11 is reduced, and the design requirement of antenna unit miniaturization is met. Next, the feeder core wire welding point 113 of the radiating element 11 is a welding point for welding the corresponding radio frequency cable assembly 14 to the radiating element 11.
In an alternative embodiment of the present invention, the radio frequency cable assembly 14 includes: a radio frequency cable connector assembly 141; the rf cable connector assembly 141 is used to establish a connection between its corresponding T/R assembly 13 and its corresponding radiating element 11.
Specifically, referring to fig. 4 (only one rf cable connector assembly is labeled in fig. 4, and other structures identical to the rf cable connector assembly are also referred to as rf cable connector assemblies), one end of each rf cable assembly 14 has an rf cable connector assembly 141, and the rf cable connector assembly 141 is used to connect the corresponding radiating unit 11 and the corresponding T/R assembly 13.
In an optional embodiment of the present invention, further comprising: installing a clamp; the mounting clip is attached to the back of the T/R assembly 13.
In addition, the structure of the mounting jig includes any one of: a pole holding structure or a wall hanging structure.
Specifically, the back of the T/R assembly 13 is connected with a mounting fixture of a pole holding structure or a wall hanging structure, which is convenient for mounting the small base station internal antenna in the embodiment in the actual use process. Meanwhile, the installation clamps have different structures, so that the small base station built-in antenna of the embodiment can be suitable for different application scenes.
In an alternative embodiment of the utility model, the T/R assembly 13 is attached to the inner surface of the radome 12 by a sealant.
In an alternative embodiment of the present invention, one end of the rf cable assembly 14 is connected to the corresponding feed shielding pad 114 of the radiating element 11, and the other end of the rf cable assembly 14 is connected to the port of the T/R assembly 13.
Specifically, the rf cable connector assembly 141 in the above embodiment is used to establish a connection between the corresponding T/R assembly 13 and the corresponding radiating element 11, and is mainly implemented by connecting one end of the rf cable assembly 14 to the feeder shielding welding point 114 of the corresponding radiating element 11, and connecting the rf cable connector assembly 141 at the other end to a port of the T/R assembly 13.
In an alternative embodiment of the utility model, the polarization direction comprises: a vertical polarization direction and a horizontal polarization direction.
In addition, the number of the at least two radiation units 11 is 4.
Specifically, in the present embodiment, the number of the radiation units 11 arranged on the inner surface of the radome 12 in the form of a rectangular array is 4, and the polarization direction between adjacent radiation units 11 is perpendicular, where the polarization direction includes: a vertical polarization direction and a horizontal polarization direction.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of the technical solutions described in the foregoing embodiments or make equivalent substitutions for some or all of the technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A small cell built-in antenna, comprising: the antenna comprises at least two radiating units, an antenna cover, T/R assemblies and radio frequency cable assemblies, wherein the number of the radio frequency cable assemblies is the same as that of the radiating units;
the back surfaces of at least two radiation units are connected with the inner surface of the antenna housing, and the at least two radiation units are arranged in the antenna housing in a rectangular array mode, wherein the polarization direction between every two adjacent radiation units is vertical, and a folding monopole form is adopted in each radiation unit;
one end of the radio frequency cable assembly is connected with the corresponding radiation unit, and the other end of the radio frequency cable assembly is connected with the T/R assembly;
the T/R assembly is also coupled to an inner surface of the radome.
2. The small base station built-in antenna according to claim 1, wherein the radiating element is a single-sided PCB, foam is arranged on the back of the single-sided PCB, and the foam is connected with the inner surface of the radome through an adhesive tape.
3. The small cell site internal antenna according to claim 2, wherein the front side of the single-sided PCB board comprises: the device comprises a fold line monopole, a feeder core wire welding point and a feeder shielding welding point.
4. The small cell site internal antenna according to claim 1, wherein the radio frequency cable assembly comprises: a radio frequency cable joint assembly;
the radio frequency cable connector assembly is used for establishing connection between the T/R assembly corresponding to the radio frequency cable connector assembly and the radiating unit corresponding to the radio frequency cable connector assembly.
5. The small cell site internal antenna according to claim 1, further comprising: installing a clamp;
the mounting clip is attached to the back of the T/R assembly.
6. The small cell site internal antenna according to claim 5, wherein the structure of the mounting jig includes any one of: pole holding structure or wall hanging structure.
7. The small cell site internal antenna according to claim 1, wherein the T/R assembly is attached to the inner surface of the radome by a sealant.
8. The small base station internal antenna according to claim 3, wherein one end of the radio frequency cable assembly is connected to the corresponding feeder shielding welding point of the radiating element, and the other end of the radio frequency cable assembly is connected to a port of the T/R assembly.
9. The small cell site internal antenna according to claim 1, wherein the polarization direction comprises: a vertical polarization direction and a horizontal polarization direction.
10. The small cell site internal antenna according to claim 1, wherein the number of at least two of the radiating elements is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220192688.8U CN216698722U (en) | 2022-01-24 | 2022-01-24 | Built-in antenna of small base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220192688.8U CN216698722U (en) | 2022-01-24 | 2022-01-24 | Built-in antenna of small base station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216698722U true CN216698722U (en) | 2022-06-07 |
Family
ID=81827083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220192688.8U Active CN216698722U (en) | 2022-01-24 | 2022-01-24 | Built-in antenna of small base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216698722U (en) |
-
2022
- 2022-01-24 CN CN202220192688.8U patent/CN216698722U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US12046813B2 (en) | Antenna filter unit, and radio unit | |
| CN102395226B (en) | Active antenna system, base station and communication system | |
| CN109149070B (en) | Surface mounting device and mobile terminal | |
| US9819091B2 (en) | Portable terminal and slot antenna thereof | |
| CN203013922U (en) | Ultra-wideband dual polarization base station antenna radiation unit | |
| US20100109970A1 (en) | Folded antenna structures for portable devices | |
| CN110571535A (en) | Antenna and communication equipment | |
| CN1708877B (en) | Wideband loop antenna | |
| CN202282872U (en) | Active antenna system, base station and communication system | |
| US11316243B2 (en) | Antenna apparatus and electronic device | |
| US20220109228A1 (en) | Antenna device and electronic apparatus | |
| CN216698722U (en) | Built-in antenna of small base station | |
| CN112436270B (en) | Miniaturized multi-frequency antenna and setting method thereof | |
| CN211858898U (en) | Dual-polarization microstrip antenna unit and antenna array | |
| CN209313001U (en) | DTV flat plane antenna | |
| US11329394B2 (en) | Flexible antenna structure and electronic device | |
| CN212303916U (en) | Low-frequency-band small base station antenna | |
| CN112599953B (en) | Bus ring for antenna erection | |
| CN210469881U (en) | PCB board mosaic structure and antenna device | |
| CN113851818A (en) | Single-side feeder ultra-wideband MIMO antenna | |
| CN212908108U (en) | 5G dual-polarized ceiling antenna | |
| CN212366202U (en) | Dual-polarized ceiling antenna | |
| WO2024125369A1 (en) | Antenna, antenna component, and base station | |
| CN219286648U (en) | Antenna structure and special-shaped triple screen complete machine | |
| JP3804884B2 (en) | Solar panel with antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |