CN211295370U - Indoor small base station antenna - Google Patents
Indoor small base station antenna Download PDFInfo
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- CN211295370U CN211295370U CN201922248519.2U CN201922248519U CN211295370U CN 211295370 U CN211295370 U CN 211295370U CN 201922248519 U CN201922248519 U CN 201922248519U CN 211295370 U CN211295370 U CN 211295370U
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- small base
- pcb board
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- station antenna
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Abstract
The utility model discloses an indoor little basic station antenna, including the PCB board, support and irradiator, the support is fixed on the top surface of PCB board, the irradiator is fixed on the support, the bottom surface of PCB board is equipped with stratum and first feed district, the top surface of PCB board is equipped with the first microstrip line that switches on with first feed district, be equipped with second feed district on the first microstrip line, the top surface of PCB board still is equipped with the first ground connection district that switches on with the stratum, the irradiator includes the first stabilizer blade of being connected with second feed district electricity and the second stabilizer blade of being connected with first ground connection district electricity. The indoor small base station antenna has small volume, good reliability, simple structure, easy processing and low manufacturing cost; the impedance change and the antenna performance of the whole antenna system can be changed by adjusting the size, the width and the length of the first microstrip line, so that the antenna performance is easier to adjust; the indoor small base station antenna can be widely applied to indoor small base station mobile terminal equipment, and is beneficial to application promotion of indoor digital intelligent equipment.
Description
Technical Field
The utility model relates to a base station antenna technical field especially relates to an indoor little base station antenna.
Background
At present, we have already taken the 4G era that high-speed data services are in the forefront and application experience is king, and how to create ubiquitous high-quality mobile broadband networks is the key point for operators to improve user experience and obtain differentiated competitive advantages. In order to get a head start in the 4G era, operators begin to piece together LTE network deployment speed, piece together peak experience, piece together capacity capability, wherein the quality of indoor coverage is the key in the era key that the operators make a break over 4G.
As one of the most original indoor coverage modes, a method of directly driving signals into the indoor space through an outdoor macro base station is difficult to continue in the LTE era, and more LTE is deployed in a high frequency band, so that attenuation influence of obstacles such as glass, brick walls, cement and the like on macro base station signals is more serious, if the outdoor macro base station is used for indoor coverage, the number of macro base stations and the networking cost are greatly increased, and meanwhile, good experience of users is difficult to ensure. The indoor small base station can solve the problems of indoor network coverage and capacity in different scenes, and provides performance gain and better mobile broadband user experience. However, in the prior art, the indoor small base station antenna often has the problems of complex structure and difficult adjustment of antenna performance.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: provided is an indoor small base station antenna whose antenna performance can be easily adjusted.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides an indoor little basic station antenna, includes PCB board, support and irradiator, the support is fixed on the top surface of PCB board, the irradiator is fixed on the support, the bottom surface of PCB board is equipped with stratum and first feed district, the top surface of PCB board be equipped with the first microstrip line that first feed district switched on, be equipped with second feed district on the first microstrip line, the top surface of PCB board still be equipped with the first ground connection district that the stratum switched on, the irradiator include with the second feed district electric first stabilizer blade of connecting and with the second stabilizer blade of first ground connection district electricity.
Furthermore, the top surface of the PCB is also provided with a second microstrip line conducted with the first grounding area, and the first grounding area is conducted with the ground layer through the second microstrip line.
Furthermore, still be equipped with the mounting hole on the PCB board, the top surface of PCB board still has the encircleing the second ground connection district that the mounting hole set up, the second ground connection district with the stratum switches on.
Further, the top surface of the PCB board is further provided with a third ground area conducted with the ground layer, and the radiator further comprises a third support leg electrically connected with the third ground area.
Furthermore, the first microstrip line includes a first extension portion, a second extension portion, a third extension portion, a fourth extension portion, and a fifth extension portion that are connected in sequence, the second extension portion is perpendicular to the first extension portion and the third extension portion, the fourth extension portion is parallel to the second extension portion, the fifth extension portion is arranged in a collinear manner with the first extension portion, the first feed area is conducted with the first microstrip line through a first metalized hole, the first metalized hole is located at a junction of the first extension portion and the second extension portion, and the second feed area is located at a junction of the fourth extension portion and the fifth extension portion.
Further, the first grounding region is disposed in line with the first extension.
Further, the first feeding region is disposed corresponding to a lower portion of the bracket.
Furthermore, the radiator is a stainless steel spring sheet or an FPC board.
The beneficial effects of the utility model reside in that: the indoor small base station antenna has small volume, good reliability, simple structure, easy processing and low manufacturing cost; the impedance change and the antenna performance of the whole antenna system can be changed by adjusting the size, the width and the length of the first microstrip line, so that the antenna performance is easier to adjust, and the antenna performance easily meets the requirements that the standing wave ratio (VSWR) is less than 2 and the out-of-roundness is less than 7; the indoor small base station antenna can be widely applied to indoor small base station mobile terminal equipment, and is beneficial to application promotion of indoor digital intelligent equipment.
Drawings
Fig. 1 is a schematic structural diagram of an overall structure of an indoor small base station antenna according to a first embodiment of the present invention;
fig. 2 is a front view of a PCB board in an indoor small base station antenna according to a first embodiment of the present invention;
fig. 3 is a rear view of a PCB board in an indoor small base station antenna according to a first embodiment of the present invention;
fig. 4 is a S11 parameter diagram of an indoor small base station antenna according to a first embodiment of the present invention;
fig. 5 is a result diagram of an antenna efficiency test of an indoor small base station antenna according to a first embodiment of the present invention;
fig. 6 is a diagram illustrating a non-circularity test result of an indoor small base station antenna according to a first embodiment of the present invention;
fig. 7 is a schematic structural diagram of an overall structure of an indoor small base station antenna according to a second embodiment of the present invention;
fig. 8 is a schematic structural diagram of a PCB board in an indoor small base station antenna according to an embodiment of the present invention;
fig. 9 is a rear view of a PCB board in an indoor small base station antenna according to a second embodiment of the present invention;
fig. 10 is a S11 parameter diagram of an indoor small base station antenna according to a second embodiment of the present invention;
fig. 11 is a result diagram of the antenna efficiency test of the indoor small base station antenna according to the second embodiment of the present invention;
fig. 12 is a diagram illustrating a non-circularity test result of an indoor small base station antenna according to a second embodiment of the present invention.
Description of reference numerals:
1. a PCB board; 2. a radiator; 21. a first leg; 22. a second leg; 23. a third leg; 3. an earth formation; 4. a first feed region; 5. a first microstrip line; 51. a first extension portion; 52. a second extension portion; 53. a third extension portion; 54. a fourth extension portion; 55. a fifth extension portion; 6. a second feed region; 7. a first ground region; 8. a second microstrip line; 9. mounting holes; 10. a second ground region; 11. and a third ground region.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 12, an indoor small base station antenna includes a PCB 1, a support, and a radiator 2, where the support is fixed on a top surface of the PCB 1, the radiator 2 is fixed on the support, a ground layer 3 and a first feed area 4 are disposed on a bottom surface of the PCB 1, a first microstrip line 5 connected to the first feed area 4 is disposed on the top surface of the PCB 1, a second feed area 6 is disposed on the first microstrip line 5, a first ground area 7 connected to the ground layer 3 is further disposed on the top surface of the PCB 1, and the radiator 2 includes a first support leg 21 electrically connected to the second feed area 6 and a second support leg 22 electrically connected to the first ground area 7.
From the above description, the beneficial effects of the present invention are: the indoor small base station antenna has small volume, good reliability, simple structure, easy processing and low manufacturing cost; the impedance change and the antenna performance of the whole antenna system can be changed by adjusting the size, the width and the length of the first microstrip line 5, so that the antenna performance is easier to adjust, and the antenna performance easily meets the requirements that the standing-wave ratio (VSWR) is less than 2 and the out-of-roundness is less than 7; the indoor small base station antenna can be widely applied to indoor small base station mobile terminal equipment, and is beneficial to application promotion of indoor digital intelligent equipment.
Further, the top surface of the PCB board 1 is further provided with a second microstrip line 8 conducted with the first grounding area 7, and the first grounding area 7 is conducted with the ground layer 3 through the second microstrip line 8.
Further, still be equipped with mounting hole 9 on the PCB board 1, the top surface of PCB board 1 still has the encircleing second ground connection district 10 that mounting hole 9 set up, second ground connection district 10 with stratum 3 switches on.
As is apparent from the above description, the mounting holes 9 are used to mount the conductive fasteners so that the PCB board 1 can be fixed on the exterior member and the conductive fasteners can be grounded through the second grounding regions 10.
Further, the top surface of the PCB 1 is further provided with a third ground area 11 that is conducted with the ground layer 3, and the radiator 2 further includes a third leg 23 electrically connected to the third ground area 11.
Further, the first microstrip line 5 includes a first extension portion 51, a second extension portion 52, a third extension portion 53, a fourth extension portion 54, and a fifth extension portion 55, which are connected in sequence, the second extension portion 52 is perpendicular to the first extension portion 51 and the third extension portion 53, the fourth extension portion 54 is parallel to the second extension portion 52, the fifth extension portion 55 is arranged in a collinear manner with the first extension portion 51, the first feeding region 4 is conducted with the first microstrip line 5 through a first metalized hole, the first metalized hole is located at a junction of the first extension portion 51 and the second extension portion 52, and the second feeding region 6 is located at a junction of the fourth extension portion 54 and the fifth extension portion 55.
As can be seen from the above description, the first microstrip line 5 is substantially n-shaped, which is beneficial to further improving the medium-low frequency performance of the indoor small base station antenna.
Further, the first grounding region 7 is disposed in line with the first extension 51.
Further, the first feeding area 4 is arranged corresponding to the lower part of the bracket.
As can be seen from the above description, the arrangement can make full use of the space of the PCB board 1, and reduce the overall size of the PCB board 1, thereby making the indoor small base station antenna more compact.
Further, the radiator 2 is a stainless steel spring plate or an FPC board.
Example one
Referring to fig. 1 to 6, a first embodiment of the present invention is: referring to fig. 1 to 3, an indoor small base station antenna includes a PCB 1, a support, and a radiator 2, where the support is fixed on a top surface of the PCB 1, the radiator 2 is fixed on the support, a ground layer 3 and a first feed area 4 are disposed on a bottom surface of the PCB 1, a first microstrip line 5 connected to the first feed area 4 is disposed on the top surface of the PCB 1, a second feed area 6 is disposed on the first microstrip line 5, a first ground area 7 connected to the ground layer 3 is further disposed on the top surface of the PCB 1, and the radiator 2 includes a first support leg 21 electrically connected to the second feed area 6 and a second support leg 22 electrically connected to the first ground area 7. Optionally, the radiator 2 is a stainless steel spring plate or an FPC board. The base material of the PCB 1 is FR4(═ 4.3, ═ 0.024).
In this embodiment, the first microstrip line 5 includes a first extending portion 51, a second extending portion 52, a third extending portion 53, a fourth extending portion 54, and a fifth extending portion 55, which are connected in sequence, the second extending portion 52 is perpendicular to the first extending portion 51 and the third extending portion 53, the fourth extending portion 54 is parallel to the second extending portion 52, the fifth extending portion 55 is disposed in a collinear manner with the first extending portion 51, the first feeding region 4 is conducted with the first microstrip line 5 through a first metalized hole, the first metalized hole is located at a junction between the first extending portion 51 and the second extending portion 52, the second feeding region 6 is located at a junction between the fourth extending portion 54 and the fifth extending portion 55, and the first grounding region 7 is disposed in a collinear manner with the first extending portion 51. Optionally, the top surface of the PCB 1 is further provided with a second microstrip line 8 conducted with the first grounding region 7, the first grounding region 7 is conducted with the ground layer 3 through the second microstrip line 8, and the impedance change and the antenna performance of the whole antenna system can be adjusted by adjusting the length, the width and the size of the second microstrip line 8.
Still be equipped with mounting hole 9 on the PCB board 1, the top surface of PCB board 1 still has the encircleing second ground connection district 10 that mounting hole 9 set up, second ground connection district 10 with stratum 3 switches on.
Optionally, the first feeding area 4 is arranged corresponding to the lower part of the support.
The applicant has made an indoor small base station antenna sample according to the content of this embodiment, fig. 4 is a graph of S11 parameter of the sample, fig. 5 is a graph of the antenna efficiency test result of the sample, and fig. 6 is a graph of the out-of-roundness test result of the sample. As can be seen from fig. 4 to 6, the indoor small cell base station antenna of the present embodiment can cover 1710Mhz-1880Mhz frequency bands well, and satisfies the standing wave ratio (VSWR) < 2 and the out-of-roundness < 7.
Example two
Referring to fig. 7 to 12, a second embodiment of the present invention is: referring to fig. 7 to 9, an indoor small cell antenna includes a PCB 1, a support, and a radiator 2, where the support is fixed on a top surface of the PCB 1, the radiator 2 is fixed on the support, a ground layer 3 and a first feed area 4 are disposed on a bottom surface of the PCB 1, a first microstrip line 5 connected to the first feed area 4 is disposed on the top surface of the PCB 1, a second feed area 6 is disposed on the first microstrip line 5, a first ground area 7 connected to the ground layer 3 is further disposed on the top surface of the PCB 1, and the radiator 2 includes a first support leg 21 electrically connected to the second feed area 6 and a second support leg 22 electrically connected to the first ground area 7. Optionally, the radiator 2 is a stainless steel spring plate or an FPC board. The base material of the PCB 1 is FR4(═ 4.3, ═ 0.024).
Further, a mounting hole 9 is further formed in the PCB 1, a second grounding area 10 surrounding the mounting hole 9 is further formed in the top surface of the PCB 1, and the second grounding area 10 is conducted with the ground layer 3; the top surface of the PCB board 1 is further provided with a second microstrip line 8 conducted with the first grounding area 7, and the first grounding area 7 is conducted with the ground layer 3 through the second microstrip line 8. In detail, the second microstrip line 8 is conductively connected to at least one second ground region 10.
The top surface of the PCB board 1 is further provided with a third grounding area 11 conducted with the ground layer 3, and the radiator 2 further comprises a third support leg 23 electrically connected with the third grounding area 11.
Optionally, the first feeding area 4 is arranged corresponding to the lower part of the support.
The applicant has made an indoor small base station antenna sample according to the content of this embodiment, fig. 10 is a graph of S11 parameter of the sample, fig. 11 is a graph of the antenna efficiency test result of the sample, and fig. 12 is a graph of the out-of-roundness test result of the sample. As can be seen from fig. 10 to 12, the indoor small base station antenna of the present embodiment can cover the 2300Mhz to 2400 Mhz frequency bands well, and satisfies the standing wave ratio (VSWR) < 2 and the out-of-roundness < 7.
To sum up, the indoor small base station antenna provided by the utility model has the advantages of small volume, good reliability, simple structure, easy processing and low manufacturing cost; the impedance change and the antenna performance of the whole antenna system can be changed by adjusting the size, the width and the length of the first microstrip line, so that the antenna performance is easier to adjust, and the antenna performance easily meets the requirements that the standing wave ratio (VSWR) is less than 2 and the out-of-roundness is less than 7; the indoor small base station antenna can be widely applied to indoor small base station mobile terminal equipment, and is beneficial to application promotion of indoor digital intelligent equipment.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (8)
1. An indoor small base station antenna, characterized by: including PCB board, support and irradiator, the support is fixed on the top surface of PCB board, the irradiator is fixed on the support, the bottom surface of PCB board is equipped with stratum and first feed district, the top surface of PCB board be equipped with the first microstrip line that first feed district switched on, be equipped with second feed district on the first microstrip line, the top surface of PCB board still be equipped with the first ground connection district that the stratum switched on, the irradiator include with first stabilizer blade that second feed district electricity is connected and with the second stabilizer blade that first ground connection district electricity is connected.
2. An indoor small base station antenna according to claim 1, characterized in that: the top surface of the PCB is also provided with a second microstrip line conducted with the first grounding area, and the first grounding area is conducted with the ground layer through the second microstrip line.
3. An indoor small base station antenna according to claim 1, characterized in that: still be equipped with the mounting hole on the PCB board, the top surface of PCB board still has and encircles the second ground connection district that the mounting hole set up, the second ground connection district with the stratum switches on.
4. An indoor small base station antenna according to claim 1, characterized in that: the top surface of PCB board still be equipped with the third ground connection district that the stratum switches on, the irradiator still include with the third stabilizer blade of third ground connection district electricity connection.
5. An indoor small base station antenna according to claim 1, characterized in that: the first microstrip line comprises a first extension part, a second extension part, a third extension part, a fourth extension part and a fifth extension part which are sequentially connected, the second extension part is respectively perpendicular to the first extension part and the third extension part, the fourth extension part is parallel to the second extension part, the fifth extension part and the first extension part are arranged in a collinear mode, the first feed area is conducted with the first microstrip line through a first metalized hole, the first metalized hole is located at the junction of the first extension part and the second extension part, and the second feed area is located at the junction of the fourth extension part and the fifth extension part.
6. An indoor small base station antenna according to claim 5, characterized in that: the first ground region is disposed co-linearly with the first extension.
7. An indoor small base station antenna according to claim 1, characterized in that: the first feeding region is disposed corresponding to a lower side of the bracket.
8. An indoor small base station antenna according to claim 1, characterized in that: the radiator is a stainless steel elastic sheet or an FPC board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922248519.2U CN211295370U (en) | 2019-12-16 | 2019-12-16 | Indoor small base station antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922248519.2U CN211295370U (en) | 2019-12-16 | 2019-12-16 | Indoor small base station antenna |
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| Publication Number | Publication Date |
|---|---|
| CN211295370U true CN211295370U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922248519.2U Active CN211295370U (en) | 2019-12-16 | 2019-12-16 | Indoor small base station antenna |
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| CN (1) | CN211295370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112290194A (en) * | 2020-09-17 | 2021-01-29 | 深圳市信维通信股份有限公司 | Integrated small base station antenna |
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2019
- 2019-12-16 CN CN201922248519.2U patent/CN211295370U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112290194A (en) * | 2020-09-17 | 2021-01-29 | 深圳市信维通信股份有限公司 | Integrated small base station antenna |
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