CN217239739U - Antenna radiator, antenna module and electronic equipment - Google Patents
Antenna radiator, antenna module and electronic equipment Download PDFInfo
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- CN217239739U CN217239739U CN202220206534.XU CN202220206534U CN217239739U CN 217239739 U CN217239739 U CN 217239739U CN 202220206534 U CN202220206534 U CN 202220206534U CN 217239739 U CN217239739 U CN 217239739U
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Abstract
The embodiment of the utility model discloses an antenna radiator, antenna module and electronic equipment, this antenna radiator includes main radiation portion, first auxiliary radiation portion and second auxiliary radiation portion; the main radiation part is provided with a feed part; first auxiliary radiation portion and second auxiliary radiation portion set up around main radiation portion, and first auxiliary radiation portion, second auxiliary radiation portion and main radiation portion are equipped with the interval between two liang, and first auxiliary radiation portion and second auxiliary radiation portion are asymmetric structure. The antenna radiator enables the frequency of the antenna radiator to be within the range of 5GHz-10GHz through the asymmetric coplanar waveguide formed by the first auxiliary radiation part and the second auxiliary radiation part, so that the requirement of multi-band use of a UWB antenna is met, the applicability and the use flexibility of the UWB antenna are improved, the antenna has good matching impedance through optimizing the sizes of the first auxiliary radiation part and the second auxiliary radiation part, and the performance of the antenna is improved.
Description
Technical Field
The utility model relates to a wireless communication field particularly relates to an antenna radiation body, antenna module and electronic equipment.
Background
Under the background of the era of rapid development of everything interconnection, the acquisition and application of position information become more and more important. Compared with outdoor positioning, the indoor positioning working environment is more complex and fine, and the technology is more diverse. Compared with the traditional WIFI positioning, Bluetooth positioning and other technologies, the UWB positioning technology has the advantages of high transmission rate, strong multipath resolution, high precision, high positioning precision and the like, so that the UWB positioning technology is widely applied, and the UWB antenna is widely applied as the core part of the UWB positioning technology. However, the bandwidth of the existing UWB antenna is narrow, so that the existing UWB antenna can only work in a single frequency band, which results in that the use requirement of multiple frequency bands cannot be met, and the applicability of the UWB antenna is reduced.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides an antenna radiation body, antenna module and electronic equipment to solve current UWB antenna and can not satisfy the user demand of multifrequency section, reduced the problem of UWB antenna's suitability.
In a first aspect, an embodiment of the present invention provides an antenna radiator, including a main radiation portion, a first auxiliary radiation portion, and a second auxiliary radiation portion; the main radiation part is provided with a feed part;
the first auxiliary radiation part and the second auxiliary radiation part are arranged around the main radiation part, intervals are arranged between the first auxiliary radiation part, the second auxiliary radiation part and the main radiation part, and the first auxiliary radiation part and the second auxiliary radiation part are of asymmetric structures.
Optionally, the main radiating part is polygonal.
Optionally, the main radiating part is rectangular.
Optionally, a notch is formed in one side of the first auxiliary radiation part, which is close to the main radiation part, and the main radiation part is located in the notch.
Optionally, the first auxiliary radiation part includes a first auxiliary radiation section, one end of the first auxiliary radiation section is provided with a second auxiliary radiation section, and the other end of the first auxiliary radiation section is provided with a third auxiliary radiation section;
the first auxiliary radiation section, the second auxiliary radiation section and the third auxiliary radiation section enclose the notch.
Optionally, the first auxiliary radiating section is parallel to the first side of the main radiating part; the second auxiliary radiation section is parallel to a second side of the main radiation part; the third auxiliary radiation section is parallel to a third edge of the main radiation part; wherein the first edge is perpendicular to the second edge and the third edge, respectively.
Optionally, the second auxiliary radiating part includes a fourth auxiliary radiating section, and the fourth auxiliary radiating section is parallel to the third side.
Optionally, the fourth auxiliary radiating section is rectangular.
Optionally, the feeding portion is located in a space between the third auxiliary radiating section and a fourth auxiliary radiating section.
In a second aspect, the embodiment of the present invention provides an antenna assembly, including substrate, radio frequency joint and foretell antenna radiator, the antenna radiator is located a surface of substrate, first auxiliary radiation portion and second auxiliary radiation portion of antenna radiator all with the outer conductor of radio frequency joint is connected, the feed portion of antenna radiator passes through the inner core of radio frequency joint is connected.
In a third aspect, an embodiment of the present invention provides an antenna assembly, including a substrate, a ground plate, a microstrip line, a feed circuit, and the antenna radiator;
the antenna radiator and the ground plate are positioned on the same surface of the substrate, the ground plate is respectively connected with the first auxiliary radiation part and the second auxiliary radiation part of the antenna radiation part, and the main radiation part of the antenna radiation part is connected with the feed circuit through the microstrip line.
Optionally, the ground plate is disposed coplanar with the antenna body, an edge of the ground plate and an edge of the substrate form at least one clearance area, and the antenna body is located in one of the clearance areas.
In a fourth aspect, embodiments of the present invention provide an electronic device, including the above antenna assembly.
According to the embodiment of the utility model provides an antenna radiator, antenna module and electronic equipment, this antenna radiator passes through the asymmetric coplanar waveguide that first auxiliary radiation portion and second auxiliary radiation portion formed, can provide the ultra wide band bandwidth of great frequency range, the frequency that makes antenna radiator is in 5GHz-10 GHz's within range, thereby the demand that the multifrequency section of UWB antenna used has been satisfied, the suitability of UWB antenna and the flexibility of use have been improved, and through the size of optimizing first auxiliary radiation portion and second auxiliary radiation portion, make the antenna have good matching impedance, the performance of antenna has been improved. In addition, first auxiliary radiation portion and second auxiliary radiation portion set up around main radiation portion to make the overall structure of antenna radiation portion compacter, be favorable to the miniaturization and the integration of antenna radiator.
Drawings
The following drawings of the present invention are used herein as part of the embodiments of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles of the invention.
In the drawings:
fig. 1 is a block diagram of an antenna radiator according to an alternative embodiment of the present invention;
fig. 2 is a block diagram of an antenna assembly according to an alternative embodiment of the present invention;
fig. 3 is a block diagram of an antenna assembly according to another alternative embodiment of the present invention;
fig. 4 is a block diagram of an antenna assembly according to yet another alternative embodiment of the present invention;
fig. 5 is a graph of S11 for an antenna assembly according to an alternative embodiment of the present invention;
fig. 6 is a graph of S11 for an antenna assembly according to another alternative embodiment of the present invention;
fig. 7 is a graph of S11 for an antenna assembly according to yet another alternative embodiment of the present invention.
Description of reference numerals:
1-antenna, 101-first auxiliary radiation part, 1011-first auxiliary radiation section, 1012-second auxiliary radiation section, 1013-third auxiliary radiation section, 102-main radiation part, 1021-first edge, 1022-second edge, 1023-third edge, 103-second auxiliary radiation part, 1031-fourth auxiliary radiation section, 104-feed part, 2-substrate, 3-radio frequency joint, 301-inner core, 302-outer conductor, 4-clearance area, 5-grounding plate, 6-microstrip line and 7-feed circuit.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular is intended to include the plural unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art.
In a first aspect, as shown in fig. 1, an embodiment of the present invention provides an antenna radiator, including a main radiation portion 102, a first auxiliary radiation portion 101, and a second auxiliary radiation portion 103; a feed part 104 is arranged on the main radiation part 102; the first auxiliary radiation part 101 and the second auxiliary radiation part 103 are arranged around the main radiation part 102, a gap is arranged between the first auxiliary radiation part 101, the second auxiliary radiation part 103 and the main radiation part 102, and the first auxiliary radiation part 101 and the second auxiliary radiation part 103 are in an asymmetric structure.
The main radiating portion 102, the first auxiliary radiating portion 101, the second auxiliary radiating portion 103, and the feeding portion 104 may be of a patch structure, and specifically, the patch may be made of a conductive material such as silver, aluminum, iron, zinc, or a metal alloy, and preferably, a conductive material with low loss, such as a copper or silver surface, is used. Of course, non-metals such as graphite, composite plastic materials formed by adding conductive materials, etc. may also be used, and the embodiment is not limited.
In this embodiment, the antenna radiator 1 can provide an ultra-wideband bandwidth with a large frequency range through the asymmetric coplanar waveguide formed by the first auxiliary radiation part 101 and the second auxiliary radiation part 103, so that the frequency of the antenna radiator 1 is in the range of 5GHz to 10GHz, thereby meeting the requirement of multi-band use of the UWB antenna, improving the applicability and flexibility of use of the UWB antenna, and enabling the antenna to have good matching impedance and improving the performance of the antenna by optimizing the sizes of the first auxiliary radiation part 101 and the second auxiliary radiation part 103. In addition, the first auxiliary radiating portion 101 and the second auxiliary radiating portion 103 are disposed around the main radiating portion 102, so that the overall structure of the antenna radiating portion is more compact, which is advantageous for miniaturization and integration of the antenna radiator 1.
Specifically, the center frequency of the antenna radiator 1 is adjusted by adjusting the size of the main radiation part 102, the low-band impedance is adjusted by adjusting the size of the first auxiliary radiation part 101, the high-band impedance is adjusted by adjusting the size of the second auxiliary radiation part 103, and the bandwidth of the antenna radiator 1 is also adjusted by adjusting the sizes of the first auxiliary radiation part 101 and the second auxiliary radiation part 103, so that the frequency of the antenna radiator 1 is in the range of 5GHz-10GHz, and the use requirement of the UWB antenna is met.
It is understood that, in order that the specific sizes of the main radiation portion 102, the first auxiliary radiation portion 101 and the second auxiliary radiation portion 103 can be set by the staff according to the actual requirement, the embodiment is not limited strictly.
Further, the main radiating portion 102 is polygonal. In some preferred embodiments, as shown in FIG. 1, the main radiating section 102 is rectangular.
Further, as shown in fig. 1, a notch is formed on a side of the first auxiliary radiating part 101 close to the main radiating part 102, and the main radiating part 102 is partially located in the notch.
The main radiation part 102 is partially located in the notch, so that the arrangement between the first auxiliary radiation part 101 and the main radiation part 102 is more compact, the overall size of the antenna radiation body 1 is reduced, and the area occupied by the antenna main body is reduced.
Specifically, as shown in fig. 1, the first auxiliary radiation part 101 includes a first auxiliary radiation section 1011, one end of the first auxiliary radiation section 1011 is provided with a second auxiliary radiation section 1012, and the other end of the first auxiliary radiation section 1011 is provided with a third auxiliary radiation section 1013; the first auxiliary radiating section 1011, the second auxiliary radiating section 1012 and the third auxiliary radiating section 1013 form a gap.
Specifically, as shown in fig. 1, the first auxiliary radiating section 1011 is parallel to the first edge 1021 of the main radiating part 102; the second auxiliary radiating section 1012 is parallel to the second edge 1022 of the main radiating part 102; the third auxiliary radiating section 1013 is parallel to the third side 1023 of the main radiating part 102; the first edge 1021 is perpendicular to the second edge 1022 and the third edge 1023, respectively.
The first auxiliary radiating section 1011, the second auxiliary radiating section 1012 and the third auxiliary radiating section 1013 are all arranged in parallel with the adjacent side edges, so that the notch shape formed by the auxiliary radiating sections can be matched with the main radiating part 102.
As shown in fig. 1, the second auxiliary radiating part 103 includes a fourth auxiliary radiating section 1031, the fourth auxiliary radiating section 1031 is located outside the third side 1023 of the main radiating part 102, and the fourth auxiliary radiating section 1031 is parallel to the third side 1023. Specifically, the fourth auxiliary radiation section 1031 is rectangular.
In the present embodiment, the second auxiliary radiating portion 103 has a rectangular structure parallel to the third side 1023 of the main radiating portion 102, so that the structure of the second auxiliary spoke portion is simplified, and the second auxiliary radiating portion 103 is more convenient to manufacture.
As shown in fig. 1, the feeding portion 104 is located in the interval between the third auxiliary radiating section 1013 and the fourth auxiliary radiating section 1031.
The power feeding unit 104 is used for connection to the power feeding circuit 7. In this embodiment, the feeding unit 104 is located in the interval between the third auxiliary radiating section 1013 and the fourth auxiliary radiating section 1031, so that the overall structure of the antenna can be more compact, the size of the antenna main body can be smaller, and the miniaturization and integration of the antenna can be easier.
In a second aspect, as shown in fig. 2, an embodiment of the present invention provides an antenna assembly, including a substrate 2, a radio frequency connector 3 and the antenna radiator 1, where the antenna radiator 1 is located on a surface of the substrate 2, a first auxiliary radiation portion 101 and a second auxiliary radiation portion 103 of the antenna radiator 1 are both connected to an outer conductor 302 of the radio frequency connector 3, and a feeding portion 104 of the antenna radiator 1 is connected to an inner core 301 of the radio frequency connector 3.
It should be noted that the antenna radiator 1 according to this embodiment may adopt the antenna radiator 1 according to the foregoing embodiment, and for the specific implementation and the working principle of the antenna radiator 1, reference may be made to corresponding contents in the foregoing embodiment, and details are not described here again.
In this embodiment, the shape of the substrate 2 is not limited, and may be a regular shape, such as a circle, a square, or an irregular shape, such as an irregular polygon. The substrate 2 may be a printed circuit board made of bismaleimide triazine resin or glass fiber reinforced epoxy resin, or may be a flexible sheet substrate 2 made of polyimide. In some preferred implementations, the substrate 2 is an FR4 dielectric substrate 2. The FR4 material has the advantages of stable electrical insulation, good flatness, smooth surface, no pit and standard thickness tolerance, has good electrical characteristics and is less influenced by the environment.
In this embodiment, the antenna assembly may be connected to the feeding circuit 7 and the ground plane 5 through the rf connector 3, that is, the inner core 301 of the rf connector 3 is connected to the feeding circuit 7, and the outer conductor 302 of the rf structure is connected to the ground plane 5, thereby facilitating the use of the antenna assembly. Wherein, the radio frequency joint 3 is a SAM joint.
Specifically, in a possible implementation manner, as shown in fig. 2, the surface of the substrate 2 is square, the side length is 9.4mm, and the thickness of the substrate 2 is 1mm, simulation is performed by using simulation software, as shown in fig. 5, the return loss S11< -10 >, and the bandwidth interval is 5.9GHz-13.3 GHz.
In a third aspect, as shown in fig. 3 and 4, an embodiment of the present invention provides an antenna assembly, including a substrate 2, a ground plate 5, a microstrip line 6, a feed circuit 7, and the antenna radiator 1; the antenna radiator 1 and the ground plate 5 are located on the same surface of the substrate 2, the ground plate 5 is respectively connected with the first auxiliary radiation part 101 and the second auxiliary radiation part 103 of the antenna radiation part, and the main radiation part 102 of the antenna radiation part is connected with the feed circuit 7 through the microstrip line 6.
It should be noted that the antenna radiator 1 according to this embodiment may adopt the antenna radiator 1 according to the foregoing embodiment, and for the specific implementation and the working principle of the antenna radiator 1, reference may be made to corresponding contents in the foregoing embodiment, and details are not described here again.
The substrate 2 may be a printed circuit board made of bismaleimide triazine resin or glass fiber reinforced epoxy resin, or may be a flexible sheet substrate 2 made of polyimide. In some preferred implementations, the substrate 2 is an FR4 dielectric substrate 2. The FR4 material has the advantages of stable electrical insulation, good flatness, smooth surface, no pit and standard thickness tolerance, has good electrical characteristics and is less influenced by the environment.
In this embodiment, the shape of the substrate 2 is not limited, and may be a regular shape, such as a circle, a square, or the like, or an irregular shape, such as an irregular polygon.
Specifically, in one possible implementation manner, as shown in fig. 3, the surface of the substrate 2 is rectangular, the length is 54mm, the width is 17mm, the thickness of the substrate 2 is 1mm, the matching impedance of the microstrip line 6 is 50 Ω, and simulation is performed by using simulation software, as shown in fig. 6, the return loss S11< -10, and the bandwidth interval is 5.2GHz-10.7 GHz.
In another possible implementation manner, as shown in fig. 4, the surface of the substrate 2 is an irregular polygon, the length of the irregular polygon is about 53mm, the width of the irregular polygon is about 34mm, the thickness of the substrate 2 is 1mm, the matching impedance of the microstrip line 6 is 50 Ω, and simulation is performed by using simulation software, as shown in fig. 7, the return loss S11< -10, and the bandwidth interval is 5.4GHz-10 GHz.
Further, the ground plate 5 is disposed coplanar with the antenna body, an edge of the ground plate 5 and an edge of the substrate 2 form at least one clearance 4, and the antenna body is located in one of the clearance 4.
In this embodiment, the shape of the ground plate 5 is not limited, and may be a regular shape, such as a circle, a square, or the like, or an irregular shape, such as an irregular polygon. The clearance 4 is determined by the shapes of the substrate 2 and the ground plate 5, but the specific shapes of the substrate 2 and the ground plate 5 are not limited strictly in this embodiment, that is, the shape of the clearance 4 formed by the substrate 2 and the ground plate 5 may be any shape.
The antenna radiator 1 is disposed in the clearance area 4, so that it is not necessary to additionally provide an area for placing the antenna radiator 1 on the substrate 2, and the size of the substrate 2 is reduced, thereby facilitating miniaturization of the antenna assembly.
In a fourth aspect, embodiments of the present invention provide an electronic device, including the above antenna assembly.
It should be noted that the antenna assembly according to the embodiment may be the antenna assembly according to the embodiment, and for the specific implementation and working principle of the antenna assembly, reference may be made to corresponding contents in the embodiment, and details are not described herein again. The electronic device may be a base station, an electronic tag, or a mobile terminal, and the embodiment is not limited thereto.
The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (13)
1. An antenna radiator is characterized by comprising a main radiation part (102), a first auxiliary radiation part (101) and a second auxiliary radiation part (103); a feed part (104) is arranged on the main radiation part (102);
the first auxiliary radiation part (101) and the second auxiliary radiation part (103) are arranged around the main radiation part (102), intervals are arranged between the first auxiliary radiation part (101), the second auxiliary radiation part (103) and the main radiation part (102), and the first auxiliary radiation part (101) and the second auxiliary radiation part (103) are of asymmetric structures.
2. An antenna radiator according to claim 1, characterized in that the main radiating portion (102) is polygonal.
3. An antenna radiator according to claim 2, characterized in that the main radiating portion (102) is rectangular.
4. An antenna radiator according to claim 3, characterized in that a notch is provided in a side of the first auxiliary radiating part (101) close to the main radiating part (102), and the main radiating part (102) is partially located in the notch.
5. An antenna radiator according to claim 4, characterized in that the first auxiliary radiating portion (101) comprises a first auxiliary radiating section (1011), one end of the first auxiliary radiating section (1011) is provided with a second auxiliary radiating section (1012), and the other end of the first auxiliary radiating section (1011) is provided with a third auxiliary radiating section (1013);
the first auxiliary radiation section (1011), the second auxiliary radiation section (1012) and the third auxiliary radiation section (1013) enclose the gap.
6. An antenna radiator according to claim 5, characterized in that the first auxiliary radiating section (1011) is parallel to the first edge (1021) of the main radiating portion (102); the second auxiliary radiating section (1012) is parallel to a second edge (1022) of the main radiating part (102); the third auxiliary radiation segment (1013) is parallel to a third side (1023) of the main radiation part (102); wherein the first edge (1021) is perpendicular to the second edge (1022) and the third edge (1023), respectively.
7. An antenna radiator according to claim 6, characterized in that the second auxiliary radiating portion (103) comprises a fourth auxiliary radiating segment (1031), the fourth auxiliary radiating segment (1031) being parallel to the third side (1023).
8. An antenna radiator according to claim 7, characterized in that the fourth auxiliary radiating segment (1031) is rectangular.
9. An antenna radiator according to claim 7, characterized in that the feed (104) is located in the space between the third (1013) and fourth (1031) auxiliary radiation segments.
10. An antenna component, characterized by a substrate (2), a radio frequency connector (3) and an antenna radiator (1) according to any of claims 1-9, the antenna radiator (1) being located on a surface of the substrate (2), the first auxiliary radiating portion (101) and the second auxiliary radiating portion (103) of the antenna radiator (1) being connected to an outer conductor (302) of the radio frequency connector (3), the feed portion (104) of the antenna radiator (1) being connected through an inner core (301) of the radio frequency connector (3).
11. An antenna component, characterized by comprising a substrate (2), a ground plane (5), a microstrip line (6), a feed circuit (7) and an antenna radiator (1) according to any of claims 1-9;
the antenna radiator (1) and the grounding plate (5) are located on the same surface of the substrate (2), the grounding plate (5) is respectively connected with a first auxiliary radiation part (101) and a second auxiliary radiation part (103) of the antenna radiation part, and a main radiation part (102) of the antenna radiation part is connected with the feed circuit (7) through the microstrip line (6).
12. An antenna assembly according to claim 11, characterized in that the ground plane (5) is disposed coplanar with the antenna body, the edges of the ground plane (5) and the edges of the substrate (2) forming at least one clearance area (4), the antenna body being located within one of the clearance areas (4).
13. An electronic device, characterized in that it comprises an antenna assembly according to claim 10 or any one of claims 11-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220206534.XU CN217239739U (en) | 2022-01-25 | 2022-01-25 | Antenna radiator, antenna module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220206534.XU CN217239739U (en) | 2022-01-25 | 2022-01-25 | Antenna radiator, antenna module and electronic equipment |
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| Publication Number | Publication Date |
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| CN217239739U true CN217239739U (en) | 2022-08-19 |
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| CN202220206534.XU Active CN217239739U (en) | 2022-01-25 | 2022-01-25 | Antenna radiator, antenna module and electronic equipment |
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| CN (1) | CN217239739U (en) |
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