CN212648481U - Antenna with parasitic element and mobile communication equipment - Google Patents
Antenna with parasitic element and mobile communication equipment Download PDFInfo
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- CN212648481U CN212648481U CN202021963650.3U CN202021963650U CN212648481U CN 212648481 U CN212648481 U CN 212648481U CN 202021963650 U CN202021963650 U CN 202021963650U CN 212648481 U CN212648481 U CN 212648481U
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Abstract
The utility model provides an antenna and mobile communication equipment with parasitic element, the antenna includes antenna main part and first parasitic element, the antenna main part has feed point and place that mutual interval set up, first parasitic element has first parasitic point, first parasitic point with the feed point sets up side by side, just first parasitic element with minimum distance between the antenna main part is 0.35 mm. The parasitic unit is arranged at the position, close to the feed point, of the antenna main body, and the distance between the parasitic unit and the antenna main body is controlled to be more than 0.35mm, so that the antenna main body and the parasitic unit can be well coupled, and the bandwidth of a high frequency band is expanded; meanwhile, the parasitic unit is utilized to break the original field intensity distribution of the antenna main body and scatter hot spots, thereby playing a role in reducing the SAR value. The problem of current antenna high frequency channel bandwidth narrower and SAR value higher is solved.
Description
Technical Field
The utility model relates to an antenna technology field, in particular to antenna and mobile communication equipment with parasitic element.
Background
With the development of technology, the size of mobile communication equipment is smaller and thinner, and the available space inside the mobile communication equipment is inevitably reduced while the mobile communication equipment product pursues light weight and miniaturization, which has an adverse effect on the characteristics of the antenna and easily causes poor signal transmission and reception of the antenna.
At present, due to space limitation and other condition restrictions, an antenna in mobile communication equipment has reduced characteristics, and particularly, the high-frequency band of the antenna has a narrow bandwidth, which cannot meet the requirement of the mobile communication equipment for communication in a wider frequency band; meanwhile, the SAR value (electromagnetic wave absorption ratio) of the high frequency band of the antenna is also high, which causes that the mobile phone signal is sensitive to the influence of human head and hands. Therefore, there is a need to provide a new mobile communication device antenna to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an antenna and mobile communication equipment with parasitic unit to solve the narrower and higher problem of SAR value of current antenna high frequency bandwidth.
In order to solve the technical problem, the utility model provides an antenna with parasitic element, the antenna includes antenna main part and first parasitic element, the antenna main part has feed point and the place that mutual interval set up, first parasitic element has first parasitic point, first parasitic point with the feed point sets up side by side, just first parasitic element with minimum distance between the antenna main part is 0.35 mm.
Optionally, in the antenna with a parasitic element, the antenna main body is L-shaped, and the feeding point and the location are located inside corners of the antenna main body.
Optionally, in the antenna with the parasitic element, the pin of the feeding point and the pin of the ground point are at 90 ° to each other.
Optionally, in the antenna with the parasitic element, the first parasitic element surrounds an end portion of the antenna body close to the feeding point, so that the first parasitic element is coupled with the surrounded portion of the antenna body.
Optionally, in the antenna with a parasitic element, the antenna further includes a second parasitic element, and at least a portion of the second parasitic element is disposed in parallel with an end of the antenna main body close to the location, so that the second parasitic element is coupled with a portion corresponding to the antenna main body.
Optionally, in the antenna with the parasitic element, the second parasitic element is in a straight shape and is located inside the antenna main body.
Optionally, in the antenna with a parasitic element, the second parasitic element has a second parasitic point, and the second parasitic point is located at a portion of the second parasitic element corresponding to the antenna main body and is away from the antenna main body.
Optionally, in the antenna with a parasitic element, the antenna main body is in a loop shape, and the feeding point is located inside the antenna main body.
Optionally, in the antenna with a parasitic element, an end of the antenna body near the feeding point surrounds the first parasitic element.
In order to solve the above technical problem, the present invention further provides a mobile communication device, including the antenna as described above.
The utility model provides an antenna and mobile communication equipment with parasitic element, the antenna includes antenna main part and first parasitic element, the antenna main part has feed point and place that mutual interval set up, first parasitic element has first parasitic point, first parasitic point with the feed point sets up side by side, just first parasitic element with minimum distance between the antenna main part is 0.35 mm. The parasitic unit is arranged at the position, close to the feed point, of the antenna main body, and the distance between the parasitic unit and the antenna main body is controlled to be more than 0.35mm, so that the antenna main body and the parasitic unit can be well coupled, and the bandwidth of a high frequency band is expanded; meanwhile, the parasitic unit is utilized to break the original field intensity distribution of the antenna main body and scatter hot spots, thereby playing a role in reducing the SAR value. The problem of current antenna high frequency channel bandwidth narrower and SAR value higher is solved.
Drawings
Fig. 1 is a schematic structural diagram of an antenna with a parasitic element according to an embodiment;
fig. 2 is a schematic structural diagram of an antenna with a parasitic element according to a second embodiment;
wherein the reference numerals are as follows:
100-an antenna body; 110-a feeding point; 120-a location; 200-a first parasitic element; 210 — a first parasitic point; 300-a second parasitic element; 310-a second parasitic point;
the distance between the S-antenna body and the first parasitic element.
Detailed Description
The antenna and the mobile communication device with parasitic element proposed by the present invention will be further described in detail 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 particular 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 an antenna having a parasitic element, as shown in fig. 1, the antenna includes an antenna main body 100 and a first parasitic element 200, the antenna main body 100 has a feeding point 110 and a ground point 120 which are disposed at an interval, the first parasitic element 200 has a first parasitic point 210, the first parasitic point 210 is disposed side by side with the feeding point 110, and a minimum distance S between the first parasitic element 200 and the antenna main body 100 is 0.35 mm.
It should be noted that, in this embodiment, the point and the other point are arranged "side by side" to mean that the two points are sequentially arranged at intervals along the length direction of the antenna, that is, the "row" is defined along the length direction of the antenna.
In the antenna with the parasitic element provided by this embodiment, the parasitic element 200 is disposed at the position of the antenna main body 100 close to the feeding point 110, and the distance S between the parasitic element 200 and the antenna main body 100 is controlled to be more than 0.35mm, so that the antenna main body 100 and the parasitic element 200 can be well coupled to expand the bandwidth of the high frequency band; meanwhile, the parasitic element 200 is used for breaking the original field intensity distribution of the antenna main body and scattering hot spots, so that the effect of reducing the SAR value is achieved. The problem of current antenna high frequency channel bandwidth narrower and SAR value higher is solved.
The antenna with parasitic element provided by the present invention is further described with two embodiments. It should be noted that the following two embodiments are only used to illustrate the structure of the antenna with parasitic element provided by the present invention, and other antenna design structures should also fall within the scope of the present invention without departing from the spirit of the present invention.
[ EXAMPLES one ]
As shown in fig. 1, the antenna with a parasitic element includes an antenna body 100 and a first parasitic element 200, wherein the antenna body 100 has a feeding point 110 and a ground point 120 which are arranged at a distance from each other, the first parasitic element 200 has a first parasitic point 210, the first parasitic point 210 is arranged side by side with the feeding point 110, and the minimum distance between the first parasitic element 200 and the antenna body 100 is 0.35 mm; the antenna body 100 is in a loop shape, and the feeding point 110 is located inside the antenna body 100.
As can be seen from fig. 1, in the antenna with the parasitic element provided in the present embodiment, the antenna main body 100 may be regarded as a LOOP antenna, and the feeding point 210 is disposed inside the LOOP, and the feeding point 210 is located near one end of the LOOP antenna, and the point 120 is located near the other end of the LOOP antenna.
The inventor finds, through a large number of simulation verifications, that the first parasitic element 200 is disposed inside the LOOP, that is, one end of the antenna main body 100 close to the feeding point 110 surrounds the first parasitic element 200, and meanwhile, the first parasitic point 210 of the first parasitic element 200 is disposed side by side with the feeding point 110, so that the bandwidth of a high frequency band can be effectively expanded. Meanwhile, in order to reduce the SAR value of the high frequency band while widening the bandwidth, the positions of the parasitic units are adjusted, and simulation is performed again, and it is found that when the minimum distance S between the first parasitic unit 200 and the antenna main body 100 is 0.35mm, the effect of reducing the SAR value is most obvious.
In this embodiment, as shown in fig. 1, the first parasitic element 200 is L-shaped, so that the coupling length between the first parasitic element 200 and the antenna main body 100 can be increased, and the coupling efficiency can be effectively improved. Of course, the trace design of the first parasitic element 200 is different in different LOOP type antenna main body 100 trace designs. In practical applications, it is confirmed through simulation how to arrange the first parasitic element 200 to obtain the optimal high-band performance.
In the antenna with the parasitic element provided in the first embodiment, the first parasitic element 200 is disposed inside the LOOP trace of the LOOP-shaped antenna main body 100, and the first parasitic element 200 can be coupled with the antenna main body 100, so as to widen the bandwidth of the high frequency band; meanwhile, by arranging the first parasitic point 210 side by side with the feeding point 110, the bandwidth of the high frequency band is further widened; in addition, by ensuring that the minimum distance between the first parasitic element 200 and the antenna main body 100 is 0.35mm, the SAR value of the high frequency band can be effectively reduced. Therefore, the problems that the high-frequency bandwidth of the existing antenna is narrow and the SAR value is high are solved.
[ example two ]
As shown in fig. 2, the antenna includes an antenna body 100 and a first parasitic element 200, the antenna body 100 has a feeding point 110 and a ground point 120 which are spaced apart from each other, the first parasitic element 200 has a first parasitic point 210, the first parasitic point 210 is arranged side by side with the feeding point 110, and a minimum distance S between the first parasitic element 200 and the antenna body 100 is 0.35 mm.
As shown in fig. 2, in the antenna with the parasitic element provided in this embodiment, the antenna body 100 may be regarded as an L-shaped IFA antenna, and the feeding point 110 and the location point 120 are respectively located inside corners of the antenna body. In particular, the pins of the feeding point 110 and the pins of the location 120 are at 90 ° to each other.
In this embodiment, the first parasitic element 200 surrounds an end portion of the antenna main body 100 close to the feeding point 110, so that the first parasitic element 200 is coupled with the surrounded portion of the antenna main body 100. Since the first parasitic element 200 surrounds the end portion of the antenna body 100 near the feeding point 110, the end of the antenna body 100 is coupled to the first parasitic element 200. Because the signal performance of the tail end of the antenna main body 100 is optimal, and the coupling length between the antenna main body 100 and the first parasitic unit 200 is long, the bandwidth of a high frequency band is effectively widened; meanwhile, the first parasitic point 210 is arranged side by side with the feeding point 110, so that the bandwidth of the high frequency band is further widened; in addition, by ensuring that the minimum distance between the first parasitic element 200 and the antenna main body 100 is 0.35mm, the SAR value of the high frequency band can be effectively reduced. Therefore, the problems that the high-frequency bandwidth of the existing antenna is narrow and the SAR value is high are solved.
Further, in this embodiment, the antenna further includes a second parasitic element 300, as shown in fig. 2, at least a portion of the second parasitic element 300 is disposed in parallel with an end portion of the antenna main body 100 close to the ground point 120, so that the second parasitic element 300 is coupled with a portion corresponding to the antenna main body 100.
After the second parasitic unit 300 is added, the antenna becomes a double parasitic unit antenna, compared with a common antenna or a single parasitic unit antenna, the high-frequency band bandwidth can be wider, the antenna is suitable for being used as a multi-band antenna, and when the antenna environment is poor and the low-frequency band bandwidth is insufficient, the advantages of two standing waves of the parasitic low frequency and the parasitic high frequency of one parasitic unit can be fully utilized to improve the performance of the antenna. Therefore, the antenna with the double parasitic elements can be applied to ultra-thin mobile communication equipment and mobile communication equipment with a metal design of the front shell.
In the antenna with parasitic elements provided in this embodiment, the second parasitic element 300 is in a straight shape and is located inside the antenna main body 100. Thus, two radiation branches are generated on the end part of one side of the antenna close to the place 120, so that signals can be transmitted through the radiation tail end of the antenna main body 100, and signals can be transmitted through the radiation tail end of the second parasitic unit 300, thereby effectively expanding the bandwidth of a high frequency band.
Specifically, the first parasitic element 200 in this embodiment can improve the intermediate frequency 2500/2700MHZ band range, and the second parasitic element 300 can improve the intermediate frequency 1710/1880 band range.
In addition, the second parasitic element 300 has a second parasitic point 310, and the second parasitic point 310 is located at a portion of the second parasitic element 300 corresponding to the antenna main body 100 and is away from the antenna main body 100. That is, the second parasitic point 310 is located inside the antenna, and is on the same side as the radiating point 110, the ground point 120 and the first parasitic point 210, so as to facilitate electrical connection with the circuit board. The area of the circuit main board can be smaller and the circuit main board is positioned at the inner side of the antenna. Through highly integrated circuit mainboard and antenna electric connection, can avoid the signal interference of circuit mainboard to the antenna under the prerequisite that occupies less space.
It should be noted that, in different trace designs of the IFA type antenna main body 100, the trace designs of the first parasitic element 200 and the second parasitic element 300 are also different. In practical applications, it is confirmed through simulation how to arrange the first parasitic element 200 and the second parasitic element 300 to obtain the optimal high-band performance.
The antenna with the parasitic element provided by this embodiment may be a metal antenna, but is preferably an FPC antenna or an LDS antenna, and can be formed on a surface of a support with a complex structure and an uneven surface.
The present embodiment also provides a mobile communication device including the antenna as described above. Mobile communication devices include, but are not limited to, cell phones, smart wearable devices, and the like.
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. An antenna having a parasitic element, the antenna comprising an antenna body and a first parasitic element, the antenna body having a feeding point and a ground point spaced apart from each other, the first parasitic element having a first parasitic point, the first parasitic point being located side by side with the feeding point, and a minimum distance between the first parasitic element and the antenna body being 0.35 mm.
2. The antenna of claim 1, wherein the antenna body is L-shaped, and wherein the feed point and the location are located inside corners of the antenna body.
3. An antenna according to claim 2, wherein the feed point leg and the ground point leg are at 90 ° to each other.
4. The antenna of claim 2, wherein the first parasitic element surrounds an end of the antenna body near the feed point such that the first parasitic element couples with the surrounded portion of the antenna body.
5. The antenna of claim 2, further comprising a second parasitic element, wherein the second parasitic element is at least partially juxtaposed with an end of the antenna body proximate to the location, such that the second parasitic element is coupled to a corresponding portion of the antenna body.
6. The antenna of claim 5, wherein the second parasitic element is in a straight shape and is located inside the antenna body.
7. The antenna of claim 5, wherein the second parasitic element has a second parasitic point, and the second parasitic point is located at a portion of the second parasitic element corresponding to the antenna body and facing away from the antenna body.
8. The antenna of claim 1, wherein the antenna body is in a loop shape, and the feeding point is located inside the antenna body.
9. The antenna of claim 8, wherein an end of the antenna body near the feed point surrounds the first parasitic element.
10. A mobile communication device comprising an antenna according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021963650.3U CN212648481U (en) | 2020-09-10 | 2020-09-10 | Antenna with parasitic element and mobile communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021963650.3U CN212648481U (en) | 2020-09-10 | 2020-09-10 | Antenna with parasitic element and mobile communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212648481U true CN212648481U (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021963650.3U Active CN212648481U (en) | 2020-09-10 | 2020-09-10 | Antenna with parasitic element and mobile communication equipment |
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| Country | Link |
|---|---|
| CN (1) | CN212648481U (en) |
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- 2020-09-10 CN CN202021963650.3U patent/CN212648481U/en active Active
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