CN220821918U - Vehicle-mounted Internet of things 5G full-band antenna - Google Patents
Vehicle-mounted Internet of things 5G full-band antenna Download PDFInfo
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- CN220821918U CN220821918U CN202322182990.2U CN202322182990U CN220821918U CN 220821918 U CN220821918 U CN 220821918U CN 202322182990 U CN202322182990 U CN 202322182990U CN 220821918 U CN220821918 U CN 220821918U
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- 230000003071 parasitic effect Effects 0.000 claims abstract description 20
- 210000001787 dendrite Anatomy 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The utility model discloses a vehicle-mounted Internet of things 5G full-band antenna, which comprises a circuit board and an antenna structure, wherein the antenna structure comprises a first L-shaped branch, a right-angle trapezoid branch, a stepped branch and a second L-shaped branch which are sequentially connected, the first L-shaped branch is parallel to the stepped branch, the right-angle trapezoid branch is perpendicular to the first L-shaped branch and the stepped branch respectively, and the stepped branch is coplanar with the second L-shaped branch; at least one side of the circuit board is provided with a clearance area, the clearance area is provided with a feed point and a parasitic branch knot, the feed point is connected and conducted with the first L-shaped branch knot, and the parasitic branch knot is close to the feed point. By using the ladder structure and the right trapezoid structure, the continuity of impedance is ensured, and under the condition that a matching circuit is not needed, the antenna can realize good return loss performance in a wider frequency band, thereby being beneficial to simplifying the antenna structure; parasitic branches are arranged on the circuit board, so that the antenna obtains high-frequency performance, and finally the antenna achieves full-band coverage of 617MHz-960MHz, 1710MHz-2690MHz and 3300MHz-5000 MHz.
Description
Technical Field
The utility model relates to the technical field of antennas, in particular to a vehicle-mounted Internet of things 5G full-band antenna.
Background
Along with the continuous development of mobile communication technology, the demands of the vehicle-mounted internet of things and wireless communication functions on automobiles are increasing, and the number of corresponding antennas is also increasing, so that higher demands are put on miniaturization and multifrequency of the antennas.
How to realize the coverage of the 5G full frequency band in a limited space is always a research and development hot spot of practitioners, and the prior art generally uses a large number of lumped elements to enable the antenna to realize the coverage of the 5G full frequency band, and the lumped elements have loss, which certainly reduces the efficiency of the antenna, so that the performance of the antenna is poor.
Disclosure of utility model
The technical problems solved by the utility model are as follows: the 5G full-band antenna of the high-performance vehicle-mounted Internet of things is provided.
In order to solve the technical problems, the utility model adopts the following technical scheme: the vehicle-mounted Internet of things 5G full-band antenna comprises a circuit board and an antenna structure, wherein the antenna structure comprises a first L-shaped branch, a right-angle trapezoid branch, a stepped branch and a second L-shaped branch which are sequentially connected, the first L-shaped branch is parallel to the stepped branch, the right-angle trapezoid branch is perpendicular to the first L-shaped branch and the stepped branch respectively, and the stepped branch is coplanar with the second L-shaped branch; the circuit board is characterized in that a clearance area is formed in at least one side of the circuit board, a feed point and a parasitic branch knot are arranged in the clearance area, the feed point is connected and conducted with the first L-shaped branch knot, and the parasitic branch knot is close to the feed point.
In an embodiment, the first L-shaped branch includes a first branch and a second branch that are vertically connected, the first branch and the second branch are respectively rectangular, a length direction of the first branch is perpendicular to a length direction of the second branch, and one end of the first branch, which is far away from the second branch, is connected with the feeding point.
In one embodiment, the length of the first branch is 9.6mm and the width is 6mm; the length of the second branch is 13.5mm, and the width is 3mm.
In an embodiment, the parasitic dendrite is rectangular, and a length direction of the parasitic dendrite is consistent with a length direction of the first dendrite.
In one embodiment, the length of the parasitic dendrite is 7mm and the width is 2mm.
In an embodiment, the upper bottom edge of the right trapezoid branch is connected to the short side edge of the first branch.
In an embodiment, the stepped branch includes a third branch, a fourth branch, a fifth branch and a sixth branch which are connected in parallel in sequence, the third branch, the fourth branch, the fifth branch and the sixth branch are all rectangular, the length of the third branch is greater than that of the fourth branch, the length of the fourth branch is greater than that of the fifth branch, the length of the fifth branch is greater than that of the sixth branch, and the lower bottom edge of the right-angle trapezoid branch is connected with the long side edge of the third branch.
In one embodiment, the third branch has a length of 29.67mm and a width of 3mm; the length of the fourth branch is 17.37mm, and the width of the fourth branch is 5.2mm; the length of the fifth branch is 12.37mm, and the width of the fifth branch is 5mm; the length of the sixth branch is 4.37mm, and the width of the sixth branch is 3.8mm.
In an embodiment, the second L-shaped branch includes a seventh branch and an eighth branch that are vertically connected, where the seventh branch and the eighth branch are respectively rectangular, a length direction of the seventh branch is perpendicular to a length direction of the eighth branch, a long side of the seventh branch is connected to a long side of the sixth branch, and the eighth branch is located on a side of the seventh branch close to the sixth branch.
In one embodiment, the seventh branch has a length of 51.24mm and a width of 3mm; the length of the eighth branch knot is 6mm, and the width of the eighth branch knot is 3mm.
The utility model has the beneficial effects that: the antenna structure ensures the continuity of impedance by using the ladder structure and the right trapezoid structure, and realizes good return loss performance of the antenna in a wider frequency band without using a matching circuit, thereby being beneficial to simplifying the antenna structure; and the parasitic branches are arranged on the circuit board, so that the antenna obtains high-frequency performance, and finally the antenna realizes full-band coverage of 617MHz-960MHz, 1710MHz-2690MHz and 3300MHz-5000 MHz. In the vehicle-mounted Internet of things 5G full-band antenna, the antenna structure can be formed through an LDS process, and can also be made of metal sheets, so that the diversity of the vehicle-mounted Internet of things 5G full-band antenna is enriched.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a vehicle-mounted internet of things 5G full-band antenna according to an embodiment of the present utility model;
Fig. 2 is a schematic structural diagram of an antenna structure in a vehicle-mounted internet of things 5G full-band antenna according to an embodiment of the present utility model;
Fig. 3 is an S11 graph of a vehicle-mounted internet of things 5G full-band antenna according to an embodiment of the present utility model;
fig. 4 is an efficiency graph of a vehicle-mounted internet of things 5G full-band antenna according to an embodiment of the present utility model.
Reference numerals illustrate:
1. a circuit board; 11. a clearance area; 12. a feeding point;
2. a first L-shaped stub; 21. a first branch; 22. a second branch;
3. Right trapezoid branches;
4. Stepped branches; 41. a third branch; 42. a fourth branch; 43. fifth branch; 44. a sixth branch;
5. a second L-shaped branch; 51. seventh branch; 52. eighth branch;
6. parasitic knots.
Detailed Description
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, in the embodiment of the present utility model, directional indications such as up, down, left, right, front, and rear … … are referred to merely for explaining a relative positional relationship, a movement condition, and the like between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
In addition, if the meaning of "and/or" is presented throughout this document to include three parallel schemes, taking "and/or" as an example, including a scheme, or a scheme that is satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
Referring to fig. 1 to 4, a first embodiment of the present utility model is as follows: as shown in fig. 1 and fig. 2, the vehicle-mounted internet of things 5G full-band antenna can be placed in a vehicle-mounted antenna box, and a shell of the vehicle-mounted antenna box can be made of polycarbonate materials or other materials.
The vehicle-mounted Internet of things 5G full-band antenna comprises a circuit board 1 and an antenna structure, wherein the antenna structure comprises a first L-shaped branch 2, a right-angle trapezoid branch 3, a stepped branch 4 and a second L-shaped branch 5 which are sequentially connected, the first L-shaped branch 2 is parallel to the stepped branch 4, the right-angle trapezoid branch 3 is perpendicular to the first L-shaped branch 2 and the stepped branch 4 respectively, the stepped branch 4 is coplanar with the second L-shaped branch 5, and the first L-shaped branch 2 and the stepped branch 4 are positioned on two sides of the right-angle trapezoid branch 3 respectively; at least one side of the circuit board 1 is provided with a clearance area 11, the clearance area 11 is provided with a feed point 12 and a parasitic branch 6, the feed point 12 is connected and conducted with the first L-shaped branch 2, the parasitic branch 6 is close to the feed point 12, in this embodiment, two sides of the circuit board 1 are respectively provided with a clearance area 11 with the width of 10mm, the feed point 12 is located in one of the clearance areas 11, and preferably, the feed point 12 is close to the end part of the clearance area 11.
In this embodiment, the supporting material of the antenna structure is a steel sheet, and in the vehicle-mounted antenna box, the stepped branch 4 and/or the second L-shaped branch 5 are fixed on the inner surface of the housing. In other embodiments, the antenna structure may be an LDS line, and in this case, a support structure for carrying the LDS line is disposed in the vehicle-mounted antenna box, or a partial area of the housing is used as a carrier of the LDS line.
Specifically, the first L-shaped branch 2 includes a first branch 21 and a second branch 22 that are vertically connected, where the first branch 21 and the second branch 22 are respectively rectangular, the length direction of the first branch 21 is perpendicular to the length direction of the second branch 22, and one end of the first branch 21 far from the second branch 22 is connected to the feeding point 12; the parasitic branch 6 is rectangular, and the length direction of the parasitic branch 6 is consistent with the length direction of the first branch 21.
The upper bottom edge of the right trapezoid branch 3 is connected with the short side edge of the first branch 21.
The stepped branch 4 comprises a third branch 41, a fourth branch 42, a fifth branch 43 and a sixth branch 44 which are sequentially connected in parallel, the third branch 41, the fourth branch 42, the fifth branch 43 and the sixth branch 44 are all rectangular, the length of the third branch 41 is greater than that of the fourth branch 42, the length of the fourth branch 42 is greater than that of the fifth branch 43, the length of the fifth branch 43 is greater than that of the sixth branch 44, and the lower bottom edge of the right-angle trapezoid branch 3 is connected with the long side edge of the third branch 41.
The second L-shaped branch 5 includes a seventh branch 51 and an eighth branch 52 that are vertically connected, the seventh branch 51 and the eighth branch 52 are respectively rectangular, the length direction of the seventh branch 51 is perpendicular to the length direction of the eighth branch 52, a long side edge of the seventh branch 51 is connected to a long side edge of the sixth branch 44, and the eighth branch 52 is located at a side of the seventh branch 51 close to the sixth branch 44.
One end surfaces of the third branch 41, the fourth branch 42, the fifth branch 43, the sixth branch 44 and the seventh branch 51 are coplanar.
In this embodiment, the length of the first branch 21 is 9.6mm, and the width is 6mm; the length of the second branch 22 is 13.5mm, and the width is 3mm; the length of the parasitic branch 6 is 7mm, and the width is 2mm; the length of the third branch 41 is 29.67mm, and the width is 3mm; the length of the fourth branch 42 is 17.37mm, and the width is 5.2mm; the length of the fifth branch 43 is 12.37mm, and the width is 5mm; the length of the sixth branch 44 is 4.37mm, and the width is 3.8mm; the length of the seventh branch 51 is 51.24mm, and the width is 3mm; the eighth stub 52 has a length of 6mm and a width of 3mm.
Fig. 3 is an S11 graph of a vehicle-mounted internet of things 5G full-band antenna of the embodiment; as can be seen from fig. 3, in the frequency bands 617MHz-960 MHz MHz, 1710MHz-2690MHz and 3300MHz-5000 MHz, the reference level of the full-band antenna of the vehicle-mounted internet of things 5G in this embodiment is below-6 dB, which meets the requirement of service performance.
Fig. 4 is an efficiency graph of the vehicle-mounted internet of things 5G full-band antenna of the embodiment; as can be seen from fig. 4, the antenna efficiency of the vehicle-mounted internet of things 5G full-band antenna of the embodiment is above-1.5, the antenna efficiency of the 617MHz-960 MHz frequency band is above-1 dB, and the antenna efficiency of the 1710MHz-2690MHz frequency band and the 3300MHz-5000 MHz frequency band are above-1 dB, so that the vehicle-mounted internet of things 5G full-band antenna of the embodiment achieves high performance.
The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. Vehicle-mounted Internet of things 5G full-band antenna is characterized in that: the antenna structure comprises a first L-shaped branch, a right-angle trapezoid branch, a stepped branch and a second L-shaped branch which are sequentially connected, wherein the first L-shaped branch is parallel to the stepped branch, the right-angle trapezoid branch is perpendicular to the first L-shaped branch and the stepped branch respectively, and the stepped branch is coplanar with the second L-shaped branch; the circuit board is characterized in that a clearance area is formed in at least one side of the circuit board, a feed point and a parasitic branch knot are arranged in the clearance area, the feed point is connected and conducted with the first L-shaped branch knot, and the parasitic branch knot is close to the feed point.
2. The vehicle-mounted internet of things 5G full band antenna of claim 1, wherein: the first L-shaped branch comprises a first branch and a second branch which are vertically connected, the first branch and the second branch are respectively rectangular, the length direction of the first branch is vertical to the length direction of the second branch, and one end, far away from the second branch, of the first branch is connected with the feed point.
3. The vehicle-mounted internet of things 5G full band antenna of claim 2, wherein: the length of the first branch is 9.6mm, and the width of the first branch is 6mm; the length of the second branch is 13.5mm, and the width is 3mm.
4. The vehicle-mounted internet of things 5G full band antenna of claim 2, wherein: the parasitic dendrite is rectangular, and the length direction of the parasitic dendrite is consistent with the length direction of the first dendrite.
5. The vehicle-mounted internet of things 5G full band antenna of claim 4, wherein: the length of the parasitic branch is 7mm, and the width is 2mm.
6. The vehicle-mounted internet of things 5G full band antenna of claim 2, wherein: the upper bottom edge of the right trapezoid branch knot is connected with the short side edge of the first branch knot.
7. The vehicle-mounted internet of things 5G full band antenna of claim 1, wherein: the stepped branch comprises a third branch, a fourth branch, a fifth branch and a sixth branch which are connected in parallel in sequence, wherein the third branch, the fourth branch, the fifth branch and the sixth branch are all rectangular, the length of the third branch is greater than that of the fourth branch, the length of the fourth branch is greater than that of the fifth branch, the length of the fifth branch is greater than that of the sixth branch, and the lower bottom edge of the right-angle trapezoid branch is connected with the long side edge of the third branch.
8. The vehicle-mounted internet of things 5G full band antenna of claim 7, wherein: the length of the third branch is 29.67mm, and the width of the third branch is 3mm; the length of the fourth branch is 17.37mm, and the width of the fourth branch is 5.2mm; the length of the fifth branch is 12.37mm, and the width of the fifth branch is 5mm; the length of the sixth branch is 4.37mm, and the width of the sixth branch is 3.8mm.
9. The vehicle-mounted internet of things 5G full band antenna of claim 7, wherein: the second L-shaped branch comprises a seventh branch and an eighth branch which are vertically connected, the seventh branch and the eighth branch are respectively rectangular, the length direction of the seventh branch is vertical to the length direction of the eighth branch, a long side edge of the seventh branch is connected with a long side edge of the sixth branch, and the eighth branch is positioned on one side of the seventh branch, which is close to the sixth branch.
10. The vehicle-mounted internet of things 5G full band antenna of claim 9, wherein: the length of the seventh branch knot is 51.24mm, and the width of the seventh branch knot is 3mm; the length of the eighth branch knot is 6mm, and the width of the eighth branch knot is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322182990.2U CN220821918U (en) | 2023-08-14 | 2023-08-14 | Vehicle-mounted Internet of things 5G full-band antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322182990.2U CN220821918U (en) | 2023-08-14 | 2023-08-14 | Vehicle-mounted Internet of things 5G full-band antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220821918U true CN220821918U (en) | 2024-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322182990.2U Active CN220821918U (en) | 2023-08-14 | 2023-08-14 | Vehicle-mounted Internet of things 5G full-band antenna |
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| Country | Link |
|---|---|
| CN (1) | CN220821918U (en) |
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- 2023-08-14 CN CN202322182990.2U patent/CN220821918U/en active Active
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