CN216251102U - Dual-band small base station antenna - Google Patents
Dual-band small base station antenna Download PDFInfo
- Publication number
- CN216251102U CN216251102U CN202123074479.8U CN202123074479U CN216251102U CN 216251102 U CN216251102 U CN 216251102U CN 202123074479 U CN202123074479 U CN 202123074479U CN 216251102 U CN216251102 U CN 216251102U
- Authority
- CN
- China
- Prior art keywords
- base station
- dual
- small base
- station antenna
- radiating
- 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.)
- Expired - Fee Related
Links
- 230000003071 parasitic effect Effects 0.000 claims abstract description 39
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 3
- 230000005855 radiation Effects 0.000 abstract description 20
- 238000013461 design Methods 0.000 abstract description 4
- LAXBNTIAOJWAOP-UHFFFAOYSA-N 2-chlorobiphenyl Chemical compound ClC1=CC=CC=C1C1=CC=CC=C1 LAXBNTIAOJWAOP-UHFFFAOYSA-N 0.000 description 6
- 101710149812 Pyruvate carboxylase 1 Proteins 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Landscapes
- Support Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
The utility model discloses a dual-band small base station antenna which comprises an antenna shell, a circuit board accommodated in the antenna shell, a radiation unit and a parasitic unit, wherein the radiation unit and the parasitic unit are arranged on the circuit board at intervals in the horizontal direction, the upper surfaces of the radiation unit and the parasitic unit are positioned on the same horizontal plane, and the radiation unit and the parasitic unit are mutually coupled and have the same current direction. The design of the dual-band small base station antenna of the utility model enables the volume of the antenna to be reduced, the structure to be simple, the assembly to be convenient and the antenna to have good performance.
Description
Technical Field
The utility model relates to the technical field of antennas, in particular to a structure of a dual-band small base station antenna.
Background
The 5G communication technology has a faster propagation rate but a narrower coverage than the 4G communication technology. Although the traditional macro base station antenna has the advantages of high gain, large coverage area, more service users and the like, the traditional macro base station antenna cannot be applied to all 5G application scenarios. Small Cell (Small Cell) has been widely used in dense user areas and indoor environments as a supplement to macro base station signal coverage. The method has the advantages of low transmitting power, small volume, convenience in installation and the like, can share the network load of a macro base station, improves the channel capacity, solves the blind spot problem of signal coverage, and becomes one of the mainstream modes of indoor 5G signal deployment at present.
The antenna, the radio frequency processing element and the baseband processing unit are integrated in a small space of the current 5G small base station, so that the installation is very convenient, but due to the particularity of a use scene, the appearance of the base station needs to be small enough, which causes great trouble to the design of the antenna. Obviously, the conventional base station antenna cannot be applied to a 5G small base station due to its large size, and especially for a dual-frequency antenna, the dual-frequency antenna generally covers a lower frequency and needs a larger size. Therefore, how to design a dual-band antenna inside a small base station is one of the problems that needs to be solved at present, not only to meet the miniaturization requirement, but also to meet the communication performance requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a dual-band small base station antenna.
In order to achieve the purpose, the utility model provides the following technical scheme: a dual-band small base station antenna comprises an antenna shell, a circuit board contained in the antenna shell, a radiation unit and a parasitic unit, wherein the radiation unit and the parasitic unit are installed on the circuit board and are arranged at intervals in the horizontal direction, the upper surfaces of the radiation unit and the parasitic unit are located on the same horizontal plane, and the radiation unit and the parasitic unit are mutually coupled and have the same current direction.
Preferably, the radiation unit includes a main radiation surface, a mounting surface vertically bent from the main radiation surface, and a feeding pin and a feeding foot extending from a lower edge of the mounting surface.
Preferably, the feeding pins and the feeding feet are arranged at intervals, the circuit board is provided with a feeding pad and a feeding ground pad, the feeding pins are electrically connected with the feeding pad, and the feeding feet are electrically connected with the feeding ground pad.
Preferably, the parasitic element includes a main body and an extension portion extending horizontally from one side of the main body to the radiating element, and the extension portion extends from one side of the radiating element to the other side.
Preferably, a chamfer is provided on an edge of the main radiating surface of the radiating element opposite to the extension portion of the parasitic element, and the extension portion includes an extension angle extending parallel to the chamfer.
Preferably, the distance between the tangent angle and the extension angle is smaller than the distance between the extension and the radiation unit.
Preferably, the dual-band small base station antenna further comprises a plurality of plastic supports, the radiating unit and the parasitic unit both comprise a plurality of positioning holes, each plastic support comprises a plurality of hot-melting columns, and the hot-melting columns are contained in the corresponding positioning holes.
Preferably, the lower surface of the plastic support and the lower surface of the circuit board are both flush and mounted on the antenna shell, and the lower surface of the plastic support is in full contact with the surface of the shell.
Preferably, the radiating unit and the parasitic unit are both metal elastic pieces.
Preferably, the distance between the radiating element and the parasitic element to the circuit board is 10 mm.
The utility model has the beneficial effects that: the novel design structure of the dual-band small base station antenna realizes the small size, simple structure and convenient assembly of the antenna and has good radio frequency performance.
Drawings
Fig. 1 is a perspective view of a dual-band small base station antenna of the present invention except for the antenna housing.
Fig. 2 is an exploded view of the dual-band small base station antenna of the present invention except the antenna housing.
Fig. 3 is a return loss diagram of the dual-band small cell antenna of the present invention in the operating band.
Fig. 4 is a horizontal plane directional diagram of the antenna working frequency band of the dual-band small base station of the utility model.
Reference numerals:
the antenna comprises an antenna 100, a PCB 1, a first feeding pad 4, a ground feeding pad 2, a second feeding pad 6, a radiating element 7, a main radiating surface 71, a first butting surface 72, a chamfer 73, a first positioning hole 11a, a feeding pin 10, a feeding foot 9, a parasitic element 8, a main body part 81, a second butting part 82, an extending part 83, an extending angle 84, a second positioning hole 11b, a plastic support 12, a bottom part 120, a hot melting column 121 and a positioning part 122.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
As shown in fig. 1 to 2, in order to implement the preferred embodiment of the present invention, a dual-band small base station antenna 100 is disclosed, which includes an antenna housing (not shown), a PCB 1 housed in the antenna housing and mounted on the antenna housing, a radiating element 7 and a parasitic element 8 electrically connected to the PCB 1, and a plastic bracket 12 supporting the radiating element 7 and the parasitic element 8. And the PCB circuit board 1 is coated with copper on two sides, and the thickness is 1.2 mm. The radiating unit 7 and the parasitic unit 8 are arranged on the horizontal plane at intervals, the upper surfaces of the radiating unit 7 and the parasitic unit 8 are located on the same horizontal plane, the radiating unit 7 and the parasitic unit 8 are mutually coupled, the current directions are consistent, extra resonance can be excited, and the low-frequency small base station antenna 100 can cover the whole working frequency band in a bandwidth mode. The radiating unit 7 and the parasitic unit 8 are both made of metal elastic sheets.
The radiation unit 7 comprises a main radiation surface 71, a first butt joint surface 72 bent vertically and downwards from one side edge of the main radiation surface 71, a feed pin 10 and a feed foot 9, wherein the feed pin 10 and the feed foot 9 extend out from the lower edge of the first butt joint surface 72, an n-shaped groove is formed by arranging the feed pin 10 and the feed foot 9 at a certain distance, and an opening of the n-shaped groove is positioned at one end close to the PCB 1. Changing the size of the n-shaped groove can change the current path from the feed pin 10 to the feed foot 9, and adjust the standing wave of the low-frequency small base station antenna 100. The parasitic element 8 includes a main body 81 and a second docking portion 82 that is bent downward from one side of the main body 81. The PCB circuit board 1 is provided with a first feeding pad 4 electrically connected with a feeding pin 10, a ground feeding pad 2 electrically connected with a ground feeding pin 9, a second feeding pad 6 electrically connected with a second butt-joint part 82, and a screw hole 3 for fixing to an antenna shell. The signal is transmitted from the outside of the antenna housing to the first and second ground feeding pads 2 and 6 through the coaxial cable, transmitted to the radiating element 7 and the parasitic element 8 through the feeding pin 10 and the second butt-joint portion 82, and finally radiated from the main radiating surface 71 and the surface of the main body portion 81 of the parasitic element 8.
The parasitic element 8 further includes an extension 83 extending horizontally from one side of the main body 81 to the radiating element 7, and the extension 83 extends from one side to the other side of the radiating element 7. The main radiating surface 71 of the radiating unit 7 is provided with a chamfer 73 on the side opposite to the extension 83 of the parasitic unit 8, and the extension 83 includes an extension angle 84 extending parallel to the chamfer 73. The distance between the tangent angle 73 and the extension angle 84 is smaller than the distance between the extension 83 and the radiation unit 7. The peripheries of the radiation unit 7 and the parasitic unit 8 are irregular rectangles. The shape of the perimeter is designed according to the radio frequency performance requirements.
The antenna 100 further includes an integrally formed plastic bracket 12, a plurality of first positioning holes 11a are formed on the main radiating surface 71 of the radiating element 7, and a plurality of second positioning holes 11b are formed on the main body 81 of the parasitic element 8. The plastic support 12 comprises a bottom 120 and a plurality of heat-melting columns 121 extending upwards from the bottom 120, wherein the end of each heat-melting column 121 is provided with a positioning part 122, and the diameter of each positioning part 122 is smaller than that of the other parts of the heat-melting columns 121. The positioning portions 122 are respectively accommodated in the corresponding first positioning hole 11a and the second positioning hole 11b, and are supported by the plastic bracket 12, so that the relative positions of the radiation unit 7 and the parasitic unit 8 are completely fixed. The bottom of the plastic support 12 is flush with the bottom of the PCB 1, and the bottom of the plastic support 12 is simultaneously in full contact with the surface of the antenna shell, so that the height from the radiation unit 7 and the parasitic unit 8 to the surface of the antenna shell is completely fixed, and the distance from the radiation unit and the parasitic unit to the PCB 1 is 10 mm.
As shown in fig. 3, a return loss diagram of the dual-band small cell antenna 100 of the present invention in the operating band shows that in the entire operating band (824MHz-960MHz,1710MHz-2690MHz), the low frequency S11 is less than-2, and most of the intermediate frequency S11 is less than-5.
As shown in fig. 4, it is a horizontal plane (Theta ═ 90deg) directional diagram of the dual-band small cell base station antenna 100 of the present invention in the operating band.
Therefore, the scope of the present invention should not be limited to the disclosure of the embodiments, but includes various alternatives and modifications without departing from the scope of the present invention, which is defined by the claims of the present patent application.
Claims (10)
1. The utility model provides a dual-band little base station antenna, its includes antenna case, accepts the circuit board in antenna case, the radiating element and the parasitic element that link to each other with the circuit board electrical property, its characterized in that: the radiating unit and the parasitic unit are arranged at intervals in the horizontal direction, the upper surfaces of the radiating unit and the parasitic unit are located on the same horizontal plane, and the radiating unit and the parasitic unit are mutually coupled and have the same current direction.
2. The dual-band small base station antenna according to claim 1, wherein the radiating element comprises a main radiating surface, a first butt-joint surface bent from the main radiating surface, and a feeding pin and a feeding foot extending from a lower edge of the first butt-joint surface.
3. The dual-band small base station antenna according to claim 2, wherein the feeding pin is spaced apart from the feeding leg, the circuit board is provided with a feeding pad and a feeding pad, the feeding pin is electrically connected to the feeding pad, and the feeding leg is electrically connected to the feeding pad.
4. The dual-band small base station antenna of claim 2, wherein the parasitic element comprises a main body and an extension extending horizontally from one side of the main body to the radiating element, and the extension extends from one side of the radiating element to the other side of the radiating element.
5. The dual-band small base station antenna of claim 4, wherein an edge of the main radiating plane of the radiating element opposite to the extension of the parasitic element is provided with a chamfer, and the extension comprises an extension angle extending parallel to the chamfer.
6. The dual band small base station antenna of claim 5, wherein a spacing between the cut angle and the extension angle is smaller than a spacing between the extension and the radiating element.
7. The dual-band small base station antenna according to claim 1, further comprising at least one plastic bracket, wherein the radiating element and the parasitic element each comprise a plurality of positioning holes, and wherein the plastic bracket comprises a plurality of heat-fusible pillars received in the corresponding positioning holes.
8. The dual band small base station antenna of claim 7, wherein the lower surface of the plastic bracket is flush with the lower surface of the circuit board and is mounted on the antenna housing, and the lower surface of the plastic bracket is substantially in contact with the surface of the housing.
9. The dual-band small base station antenna of claim 1, wherein the radiating element and the parasitic element are both metal domes.
10. The dual band small base station antenna of claim 1, wherein the radiating element and parasitic element are 10mm from the circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123074479.8U CN216251102U (en) | 2021-12-09 | 2021-12-09 | Dual-band small base station antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123074479.8U CN216251102U (en) | 2021-12-09 | 2021-12-09 | Dual-band small base station antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216251102U true CN216251102U (en) | 2022-04-08 |
Family
ID=80962283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123074479.8U Expired - Fee Related CN216251102U (en) | 2021-12-09 | 2021-12-09 | Dual-band small base station antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216251102U (en) |
-
2021
- 2021-12-09 CN CN202123074479.8U patent/CN216251102U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6373436B1 (en) | Dual strip antenna with periodic mesh pattern | |
| US6184833B1 (en) | Dual strip antenna | |
| CN101147293B (en) | Patch antenna with electromagnetic shield counterpoise | |
| US6414642B2 (en) | Orthogonal slot antenna assembly | |
| TWI538303B (en) | Antenna systems with low passive intermodulation (pim) | |
| CN1605137B (en) | Dual-band internal antenna for dual-band communication device | |
| CN210926326U (en) | Miniaturized ultra-wideband base station antenna unit | |
| US7583986B2 (en) | Actuator module of wireless communication terminals | |
| CN111525234A (en) | Dual-polarized antenna and customer front-end equipment | |
| US7187331B2 (en) | Embedded multiband antennas | |
| CN216251102U (en) | Dual-band small base station antenna | |
| JP2007159089A (en) | Three-dimensional antenna structure | |
| CN212303916U (en) | Low-frequency-band small base station antenna | |
| CN116417786A (en) | Indoor distributed dual-polarized directional wall-mounted antenna with mobile broadband | |
| CN215342987U (en) | Dual-polarized omnidirectional ceiling antenna with ultra-wide band | |
| IL137933A (en) | Substrate antenna | |
| CN113363734A (en) | Massive MIMO array antenna | |
| KR102433334B1 (en) | Antenna System For a Small Cell | |
| CN113851837A (en) | Low-frequency-band small base station antenna | |
| CN213753041U (en) | Dual-polarized omnidirectional antenna | |
| CN216488496U (en) | Antenna assembly | |
| CN216529364U (en) | Ultra-wideband WIFI6E antenna | |
| CN211350925U (en) | Smart television antenna and smart television | |
| CN214203939U (en) | Supporting seat and radiation unit applying same | |
| US20240145893A1 (en) | Radio frequency filters covered by printed circuit boards |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220408 |