CN212934850U - Dipole antenna and mobile terminal equipment - Google Patents
Dipole antenna and mobile terminal equipment Download PDFInfo
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- CN212934850U CN212934850U CN202022308996.6U CN202022308996U CN212934850U CN 212934850 U CN212934850 U CN 212934850U CN 202022308996 U CN202022308996 U CN 202022308996U CN 212934850 U CN212934850 U CN 212934850U
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Abstract
The utility model provides a dipole antenna and mobile terminal equipment, wherein the dipole antenna includes the first radiator and the second radiator that are central symmetry distribution, the line of first radiator and the second radiator is the ring-type that has the opening respectively; one side of the first radiator, which is close to the second radiator, is provided with a feed point, and one side of the second radiator, which is close to the first radiator, is provided with a place. The first radiator and the second radiator of the dipole antenna are distributed in a central symmetry mode, so that the dipole antenna can cover the whole bandwidths of 2.4G and 5G; meanwhile, the first radiator and the second radiator are provided with the openings, and the openings are centrosymmetric, so that the omni-directionality of the dipole antenna is improved. The problem of how to improve the omni-directionality of the antenna while widening the bandwidth of the antenna is solved.
Description
Technical Field
The utility model relates to the technical field of antennas, in particular to dipole antenna and mobile terminal equipment.
Background
With the development of mobile communication technology, mobile terminal devices are also developed to be smaller and lighter, so that the space left for antennas in the mobile terminal devices is smaller and smaller, and the functions of the mobile terminal devices can not be realized without departing from the performance of the antennas. Therefore, how to improve the performance of the antenna in a small space is a problem that must be solved by the development of mobile communication technology.
At present, in order to solve the problem of improving the performance of an antenna in a small space, the antenna generally starts from two directions: firstly, the structure of the antenna is changed, such as adopting a PIFA antenna and a MIMO antenna, or utilizing the antenna on the mobile terminal device body as a part of the antenna structure, etc.; and secondly, other structures or components are added, such as a matching circuit, a feed circuit and the like.
However, the existing method is difficult to simultaneously expand the bandwidth of the antenna and improve the omni-directionality of the antenna, so that the radiation performance of the antenna in a certain direction is poor, for example, in the same room, the difference of WiFi signals at the same distance and different positions is large by taking the router as the center of a circle, and the network speeds are inconsistent. Therefore, how to increase the omni-directionality of the antenna while widening the bandwidth of the antenna is an urgent problem to be solved in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dipole antenna and mobile terminal equipment to solve and how to improve the omnidirectional problem of antenna when widening the antenna bandwidth.
In order to solve the above technical problem, the present invention provides a dipole antenna, which includes a first radiator and a second radiator distributed in a central symmetry manner, wherein the routing lines of the first radiator and the second radiator are respectively in a ring shape with an opening; one side of the first radiator, which is close to the second radiator, is provided with a feed point, and one side of the second radiator, which is close to the first radiator, is provided with a place.
Optionally, in the dipole antenna, a distance between the feeding point and the location is 1.5-2.5 mm.
Optionally, the dipole antenna, in which the first radiator and the second radiator each include a first strip, a second strip, a third strip, a fourth strip and a fifth strip connected in sequence, and the first strip and the second strip form an included angle therebetween, the second strip and the third strip form an included angle therebetween, the third strip and the fourth strip form an included angle therebetween, and the fourth strip and the fifth strip form an included angle therebetween.
Optionally, in the dipole antenna, the first strip, the third strip and the fifth strip are disposed parallel to each other, and the second strip and the fourth strip are disposed parallel to each other.
Optionally, in the dipole antenna, an included angle between the first strip and the second strip, an included angle between the second strip and the third strip, an included angle between the third strip and the fourth strip, and an included angle between the fourth strip and the fifth strip are all 90 degrees.
Optionally, in the dipole antenna, the length of the second strip is greater than the length of the fourth strip, the length of the third strip is greater than the length of the first strip, and the length of the first strip is greater than the length of the fifth strip.
Optionally, in the dipole antenna, the fourth strip of the first radiator and the fourth strip of the second radiator are disposed close to each other and in parallel, so that the second strip of the first radiator and the second strip of the second radiator are located outside.
Optionally, in the dipole antenna, the feeding point is located at a connection between the fourth strip and the fifth strip of the first radiator, and the location is located at a connection between the fourth strip and the fifth strip of the second radiator.
In order to solve the above technical problem, the utility model provides a mobile terminal equipment is still provided, mobile terminal equipment includes at least one as above arbitrary dipole antenna.
Optionally, in the mobile terminal device, the mobile terminal device includes two dipole antennas as described above, and the two dipole antennas are disposed perpendicular to each other and have their centers coinciding with each other.
The utility model provides a dipole antenna and mobile terminal equipment, wherein the dipole antenna includes the first radiator and the second radiator that are central symmetry distribution, the line of first radiator and the second radiator is the ring-type that has the opening respectively; one side of the first radiator, which is close to the second radiator, is provided with a feed point, and one side of the second radiator, which is close to the first radiator, is provided with a place. The first radiator and the second radiator of the dipole antenna are distributed in a central symmetry mode, so that the dipole antenna can cover the whole bandwidths of 2.4G and 5G; meanwhile, the first radiator and the second radiator are provided with the openings, and the openings are centrosymmetric, so that the omni-directionality of the dipole antenna is improved. The problem of how to improve the omni-directionality of the antenna while widening the bandwidth of the antenna is solved.
Drawings
Fig. 1 is a schematic structural diagram of a dipole antenna provided in this embodiment;
wherein the reference numerals are as follows:
100-a first radiator; 110-a first tape strip; 120-a second tape strip; 130-a third strip; 140-a fourth tape strip; 150-a fifth tape strip; 160-feeding point;
200-a second radiator; 210-a first tape strip; 220-a second tape strip; 230-a third strip; 240-fourth tape strip; 250-a fifth tape strip; 260-location.
Detailed Description
The dipole antenna and the mobile terminal device provided by the present invention are further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.
It should be noted that "first", "second", and the like in the description and claims of the present invention and the accompanying drawings are used for distinguishing similar objects so as to describe embodiments of the present invention, and are not intended to describe a specific order or sequence, and it should be understood that structures so used may be interchanged where appropriate. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present embodiment provides a dipole antenna, as shown in fig. 1, the dipole antenna includes a first radiator 100 and a second radiator 200 that are distributed in a central symmetry manner, and the traces of the first radiator 100 and the second radiator 200 are respectively in a ring shape with an opening; a feeding point 160 is disposed at a side of the first radiator 100 close to the second radiator 200, and a location 260 is disposed at a side of the second radiator 200 close to the first radiator 100.
In the dipole antenna provided by this embodiment, the first radiator 100 and the second radiator 200 of the dipole antenna are distributed in a central symmetry manner, so that the dipole antenna can cover the whole bandwidths of 2.4G (2.4 GHz-2.5 GHz) and 5G (5.15 GHz-5.85 GHz); meanwhile, the first radiator 100 and the second radiator 200 have an opening, and the opening is also centrosymmetric, so that the omni-directionality of the dipole antenna is improved. The problem of how to improve the omni-directionality of the antenna while widening the bandwidth of the antenna is solved.
Preferably, in this embodiment, the distance between the feeding point 160 and the location 260 is 1.5-2.5 mm. Within this range, the first radiator 100 and the second radiator 200 can be coupled with each other with a high coupling efficiency, thereby improving the radiation performance of the dipole antenna.
Referring to fig. 1, in the present embodiment, each of the first radiator 100 and the second radiator 200 includes a first stripe 110/210, a second stripe 120/220, a third stripe 130/230, a fourth stripe 140/240, and a fifth stripe 150/250, which are connected in sequence, and an included angle is formed between the first stripe 110/210 and the second stripe 120/220, an included angle is formed between the second stripe 120/220 and the third stripe 130/230, an included angle is formed between the third stripe 130/230 and the fourth stripe 140/240, and an included angle is formed between the fourth stripe 140/240 and the fifth stripe 150/250.
Because the traces of first strap 110/210, second strap 120/220, third strap 130/230, fourth strap 140/240, and fifth strap 150/250 are all straight, only by forming angles at the junctions therebetween such that first strap 110/210, second strap 120/220, third strap 130/230, fourth strap 140/240, and fifth strap 150/250 form a surrounding loop with an opening therebetween.
It should be noted that, since the first radiator 100 and the second radiator 200 are symmetrical with respect to the center, the lengths, widths, angles and positions of the first strip 110/210, the second strip 120/220, the third strip 130/230, the fourth strip 140/240 and the fifth strip 150/250 are all consistent.
Preferably, the first strap 110/210, the third strap 130/230, and the fifth strap 150/250 are disposed parallel to one another, and the second strap 120/220 and the fourth strap 140/240 are disposed parallel to one another. Because each strip is responsible for realizing different frequency band ranges, signals in different frequency band ranges can obtain more consistent signal strength in all directions, the coupling efficiency between low frequency and high frequency can be ensured to be higher, and the radiation performance of the antenna is improved.
Preferably, in this embodiment, as shown in fig. 1, the angle between the first strap 110/210 and the second strap 120/220, the angle between the second strap 120/220 and the third strap 130/230, the angle between the third strap 130/230 and the fourth strap 140/240, and the angle between the fourth strap 140/240 and the fifth strap 150/250 are all 90 degrees. In this way, the first radiator 100 and the second radiator 200 are rectangular with openings, which not only simplifies the process, but also saves the space occupied by the antenna, and improves the coupling efficiency between high and low frequencies and between the first radiator 100 and the second radiator 200.
Further, in this embodiment, the length of the second strap 120/220 is greater than the length of the fourth strap 140/240, the length of the third strap 130/230 is greater than the length of the first strap 110/210, and the length of the first strap 110/210 is greater than the length of the fifth strap 150/250. As can be seen from fig. 1, this length layout is such that the fifth strip 150/250 is located inside the first radiator 100 or the second radiator 200.
In a specific application, the first stripe 110/210, the second stripe 120/220, the third stripe 130/230 and the fourth stripe 140/240 are responsible for signal transceiving within a 2.4G frequency band, and the fifth stripe 150/250 is responsible for signal transceiving within a 5G frequency band.
Further, the fourth strip 140 of the first radiator 100 and the fourth strip 240 of the second radiator 200 are disposed close to and parallel to each other, so that the second strip 120 of the first radiator 100 and the second strip 220 of the second radiator 200 are located at outer sides. Therefore, the coupling efficiency between the fifth strips 150/250 is improved, and the current intensity distribution of the 2.4G frequency band and the 5G frequency band is balanced, so that the radiation performance of the antenna is improved while the signal omni-directionality is ensured.
In this embodiment, in order to improve the transceiving performance of 2.4G and 5G band signals at the same time, it is preferable that the feeding point 160 is located at a connection between the fourth strip 140 and the fifth strip 150 of the first radiator 100, and the point 260 is located at a connection between the fourth strip 240 and the fifth strip 250 of the second radiator 200. Thus, the current flowing from the feeding point 160 is distributed and flows through the fourth strip 140 and the fifth strip 150 of the first radiator 100 at the same time, so that the 2.4G frequency band and the 5G frequency band can obtain stronger current intensity, and the antenna performance of the two frequency bands is improved; meanwhile, since the fourth strips 140/240 are close to each other, the current flowing from the feeding point 160 can be well coupled between the fourth strips 140/240, so that a stronger current can be induced in the second radiator 200, and an induced current with a stronger current intensity is generated, thereby ensuring the antenna performance of the 2.4G band and the 5G band of the second radiator 200. Therefore, the bandwidth of the 2.4G frequency band and the bandwidth of the 5G frequency band can be ensured while the omni-directional property of the antenna signal is met.
Simulation experiments carried out by using the dipole antenna provided by the embodiment show that the dipole antenna provided by the embodiment has the efficiency of about-3.5 dB in the range of 2.4G frequency band and the efficiency of about-3.7 dB in the range of 5G frequency band, and has better antenna radiation efficiency. In addition, the gain of the dipole antenna provided by the embodiment in the range of 2.4G frequency band and the gain of the dipole antenna provided by the embodiment in the range of 5G frequency band are about 0.5dBi, and it can be seen that the dipole antenna provided by the embodiment has better omni-directionality due to lower gain.
It should be noted that, in the dipole antenna provided in this embodiment, the width of the trace and the size of the antenna need to be adjusted according to actual requirements, and the widths of different strips in the same radiator may be different. The dipole antenna provided by the embodiment can be a metal antenna, an FPC antenna or an LDS antenna because the dipole antenna is planar.
In addition, the present embodiment also provides a mobile terminal device, where the mobile terminal device includes at least one dipole antenna as described above. The mobile terminal equipment can be a mobile phone, a router and the like. By using the dipole antenna provided by the embodiment, the mobile terminal device can provide signals with good omni-directionality, high radiation performance and wide bandwidth so as to meet diversified requirements.
As a specific embodiment, the mobile terminal device may include two dipole antennas as described above, and the two dipole antennas are disposed perpendicular to each other and have their centers coinciding with each other. The two dipole antennas can be identical in size, so that the signal strength and the omni-directionality of the antenna can be further improved.
In summary, in the dipole antenna and the mobile terminal device provided in this embodiment, the dipole antenna includes a first radiator and a second radiator that are distributed in a central symmetry manner, and the routing of the first radiator and the routing of the second radiator are respectively in a ring shape with an opening; one side of the first radiator, which is close to the second radiator, is provided with a feed point, and one side of the second radiator, which is close to the first radiator, is provided with a place. The first radiator and the second radiator of the dipole antenna are distributed in a central symmetry mode, so that the dipole antenna can cover the whole bandwidths of 2.4G and 5G; meanwhile, the first radiator and the second radiator are provided with the openings, and the openings are centrosymmetric, so that the omni-directionality of the dipole antenna is improved. The problem of how to improve the omni-directionality of the antenna while widening the bandwidth of the antenna is solved.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.
Claims (10)
1. A dipole antenna is characterized by comprising a first radiator and a second radiator which are distributed in central symmetry, wherein the routing lines of the first radiator and the second radiator are respectively in a ring shape with an opening; one side of the first radiator, which is close to the second radiator, is provided with a feed point, and one side of the second radiator, which is close to the first radiator, is provided with a place.
2. A dipole antenna according to claim 1, wherein the distance between said feed point and said location is 1.5-2.5 mm.
3. A dipole antenna according to claim 1, wherein said first radiator and said second radiator each comprise a first strip, a second strip, a third strip, a fourth strip and a fifth strip connected in sequence, and wherein said first strip and said second strip form an angle therebetween, said second strip and said third strip form an angle therebetween, said third strip and said fourth strip form an angle therebetween, and said fourth strip and said fifth strip form an angle therebetween.
4. A dipole antenna according to claim 3, wherein said first strip, said third strip and said fifth strip are disposed parallel to each other, and said second strip and said fourth strip are disposed parallel to each other.
5. A dipole antenna according to claim 3, wherein the angle between said first strip and said second strip, the angle between said second strip and said third strip, the angle between said third strip and said fourth strip, and the angle between said fourth strip and said fifth strip are all 90 degrees.
6. A dipole antenna according to claim 3, wherein said second strip has a length greater than a length of said fourth strip, said third strip has a length greater than a length of said first strip, and said first strip has a length greater than a length of said fifth strip.
7. A dipole antenna according to claim 6, wherein said fourth strip of said first radiator and said fourth strip of said second radiator are disposed adjacent and parallel to each other such that said second strip of said first radiator and said second strip of said second radiator are on the outside.
8. A dipole antenna according to claim 3, wherein said feed point is at a junction of said fourth strip and said fifth strip of said first radiator, and said ground point is at a junction of said fourth strip and said fifth strip of said second radiator.
9. A mobile terminal device, characterized in that it comprises at least one dipole antenna according to any of claims 1-8.
10. The mobile terminal device according to claim 9, wherein the mobile terminal device comprises two dipole antennas according to any one of claims 1 to 8, and the two dipole antennas are arranged perpendicular to each other and have coincident centers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022308996.6U CN212934850U (en) | 2020-10-16 | 2020-10-16 | Dipole antenna and mobile terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022308996.6U CN212934850U (en) | 2020-10-16 | 2020-10-16 | Dipole antenna and mobile terminal equipment |
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| Publication Number | Publication Date |
|---|---|
| CN212934850U true CN212934850U (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022308996.6U Active CN212934850U (en) | 2020-10-16 | 2020-10-16 | Dipole antenna and mobile terminal equipment |
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| CN (1) | CN212934850U (en) |
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