CN220172368U - Antenna and electronic equipment - Google Patents
Antenna and electronic equipment Download PDFInfo
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- CN220172368U CN220172368U CN202321664437.6U CN202321664437U CN220172368U CN 220172368 U CN220172368 U CN 220172368U CN 202321664437 U CN202321664437 U CN 202321664437U CN 220172368 U CN220172368 U CN 220172368U
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- 239000000758 substrate Substances 0.000 claims abstract description 84
- 230000008878 coupling Effects 0.000 claims abstract description 60
- 238000010168 coupling process Methods 0.000 claims abstract description 60
- 238000005859 coupling reaction Methods 0.000 claims abstract description 60
- 230000005684 electric field Effects 0.000 claims abstract description 12
- 230000005284 excitation Effects 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 239000011889 copper foil Substances 0.000 claims description 11
- 238000013461 design Methods 0.000 abstract description 17
- 230000005855 radiation Effects 0.000 description 9
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model provides an antenna and electronic equipment, wherein the antenna comprises a dielectric substrate and an antenna body, and the antenna body comprises an antenna radiator and a coupling branch; the antenna body is arranged in a form of a circle around the edge of the dielectric substrate; the antenna radiator comprises a high-frequency radiator and a low-frequency radiator, one end of the high-frequency radiator is positioned at the edge of the dielectric substrate, and the other end of the high-frequency radiator extends towards the center of a side plate surface of the dielectric substrate, which is provided with a feed point; at least part of the low-frequency radiator protrudes towards the center of the dielectric substrate; one end of the coupling branch is positioned at the edge of the medium substrate, and the other end extends towards the center of the medium substrate; the coupling branches are used for electric field coupling with the antenna radiator to excite resonance with a set frequency when the feed point feeds excitation. The utility model realizes the miniaturization design of the antenna, the structural forms of the antenna radiator and the coupling branches fully utilize the space, the integral structural size of the antenna is reduced, the design of the light and thin electronic equipment is further adapted, and the performance of the antenna is ensured.
Description
Technical Field
The present utility model relates to the field of antenna technologies, and in particular, to an antenna and an electronic device.
Background
With the development of notebook computer communication technology, the product design is more pursued to the design of all-metal & frivolous casing, from this the design space that reserves for notebook computer WLAN antenna is tightening, leads to notebook computer's WLAN antenna's work headroom environment to worsen, and then causes throughput (T-PUT) and radiation efficiency performance of antenna to reduce.
The antenna of the traditional notebook computer is generally designed by adopting a PCB process antenna with the dimensions of 25mm in length, 10mm in width and 0.8mm in thickness, and has large size and high cost.
Disclosure of Invention
An objective of the embodiments of the present utility model is to provide an antenna and an electronic device, which are used for solving the problem of performance degradation of the conventional antenna caused by the light and thin design of the product in the prior art.
The embodiment of the utility model adopts the following technical scheme: an antenna applied to electronic equipment is characterized by comprising a dielectric substrate and an antenna body, wherein the antenna body comprises an antenna radiator and a coupling branch;
a feeding point is arranged on one side plate surface of the dielectric substrate;
the antenna body is arranged on a side plate surface of the dielectric substrate, which is provided with the feed point, the antenna body is arranged in a structure form of encircling the edge of the dielectric substrate, and a notch is arranged at the position corresponding to the feed point;
the antenna radiator comprises a high-frequency radiator and a low-frequency radiator, one end of the high-frequency radiator is positioned at the edge of the dielectric substrate, and the other end of the high-frequency radiator extends towards the center of a side plate surface of the dielectric substrate, which is provided with the feed point; at least part of the low-frequency radiator protrudes towards the center of a side plate surface of the dielectric substrate with the feed point;
one end of the coupling branch is positioned at the edge of the medium substrate, and the other end of the coupling branch extends to the center of a side plate surface of the medium substrate with the feed point; the coupling branch is used for electric field coupling with the antenna radiator so as to excite resonance with set frequency when the feed point feeds in excitation.
In some embodiments, the width of the high frequency radiator is greater than the width of the low frequency radiator, and the high frequency radiator is electric field coupled with the coupling branch to excite resonance at a first set frequency when the feed point feeds excitation.
In some embodiments, the antenna body includes a first low frequency radiator, a second low frequency radiator, and a third low frequency radiator;
the first low-frequency radiator is positioned between the high-frequency radiator and the coupling branch, and two ends of the first low-frequency radiator are respectively connected with the high-frequency radiator and the coupling branch;
the second low-frequency radiator is positioned between the coupling branch and the third low-frequency radiator, and two ends of the second low-frequency radiator are respectively connected with one ends of the coupling branch and the third low-frequency radiator;
the other end of the third low-frequency radiator is used as a free end.
In some embodiments, the dielectric substrate is rectangular;
the high frequency radiator and at least a portion of the first low frequency radiator are disposed along a first side of the dielectric substrate;
the coupling branches are arranged along the second edge of the medium substrate;
the second low-frequency radiator is arranged along the third side of the dielectric substrate, and at least part of the second low-frequency radiator protrudes along the center of a side surface of the dielectric substrate, which is provided with the feed point, of the dielectric substrate;
the third low frequency radiator is disposed along a fourth side of the dielectric substrate.
In some embodiments, the plurality of coupling studs is arranged at intervals along the second side of the dielectric substrate.
In some embodiments, the coupling branches are different in length, and the coupling branches of different lengths are used for electric field coupling with the high frequency radiator and the low frequency radiator, respectively.
In some embodiments, the antenna is configured to cover at least the operating frequency bands of WIFI2.4G, WIFI5G, and WIFI 6E.
In some embodiments, the antenna is configured as a rectangular plate structure having a length of 5.5 mm to 5.8 mm, a width of 5.5 mm to 5.8 mm, and a thickness of 0.8 mm.
In some embodiments, the antenna further comprises a ground copper foil, one end of the ground copper foil is connected with the dielectric substrate, and the other end of the ground copper foil is grounded.
The utility model also discloses electronic equipment, which comprises a display end and a system end, wherein the shell of the display end is provided with a clearance area, and the electronic equipment further comprises an antenna arranged in the clearance area according to any one of the above embodiments.
The embodiment of the utility model has the beneficial effects that:
the antenna body is designed to be arranged in a structure form of a circle around the edge of the dielectric substrate, the antenna radiator comprises a high-frequency radiator and a low-frequency radiator, one end of the high-frequency radiator is positioned at the edge of the dielectric substrate, and the other end of the high-frequency radiator extends towards the center of a side plate surface of the dielectric substrate, which is provided with a feed point; at least part of the low-frequency radiator protrudes towards the center of a side plate surface of the dielectric substrate with the feed point; one end of the coupling branch is positioned at the edge of the medium substrate, and the other end extends towards the center of the side plate surface of the medium substrate with the feed point; the coupling branches are used for electric field coupling with the antenna radiator to excite resonance with a set frequency when the feed point feeds excitation. The utility model realizes the miniaturization design of the antenna, the structural forms of the antenna radiator and the coupling branches fully utilize the space, the integral structural size of the antenna is reduced, the design of the light and thin electronic equipment is further adapted, and the performance of the antenna is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings can be obtained according to the drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic structural diagram of an antenna according to the present utility model.
Fig. 2 is a return loss characteristic diagram of the antenna of the present utility model.
Fig. 3 is a radiation efficiency diagram of the antenna of the present utility model.
Reference numerals: the high-frequency antenna comprises a medium substrate 1, a coupling branch, a feeding point 3, a high-frequency radiator 4, a first low-frequency radiator 5, a second low-frequency radiator 6, a third low-frequency radiator 7 and a grounding copper foil 8.
Detailed Description
Various aspects and features of the present utility model are described herein with reference to the accompanying drawings.
It should be understood that various modifications may be made to the embodiments of the application herein. Therefore, the above description should not be taken as limiting, but merely as exemplification of the embodiments. Other modifications within the scope and spirit of the utility model will occur to persons of ordinary skill in the art.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and, together with a general description of the utility model given above, and the detailed description of the embodiments given below, serve to explain the principles of the utility model.
These and other characteristics of the utility model will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It is also to be understood that, although the utility model has been described with reference to some specific examples, a person skilled in the art will certainly be able to achieve many other equivalent forms of the utility model, having the characteristics as set forth in the foregoing summary of the utility model and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present utility model will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present utility model will be described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the utility model, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the utility model in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not intended to be limiting, but merely as a basis for the "summary of the utility model" and as a representative basis for teaching one skilled in the art to variously employ the present utility model in virtually any appropriately detailed structure.
The specification may use the word "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the utility model.
In order to solve the problems in the background technology, the utility model discloses an antenna which is applied to electronic equipment.
As shown in fig. 1, the antenna comprises a dielectric substrate 1 and an antenna body arranged on the dielectric substrate 1, wherein the antenna body comprises an antenna radiator and a coupling branch 2.
The feeding point 3 is arranged on one side plate surface of the dielectric substrate 1, the dielectric substrate 1 can be a rectangular plate, and the feeding point 3 can be arranged at one corner of the rectangular plate. The feed point 3 is used as a connection point of the antenna body and the cable and is used for signal transmission of the antenna body and the cable.
The antenna body is arranged on one side plate surface of the dielectric substrate 1 with the feed point 3, and the antenna body is arranged in a form of a circle around the edge of the dielectric substrate 1 so as to fully utilize the structural space of the dielectric substrate 1. The antenna body is provided with a notch at the position corresponding to the feed point 3, namely one end of the antenna body can be arranged along the edges of each side of the dielectric substrate 1 from the corner position of the rectangular dielectric substrate 1 corresponding to the feed point 3 to the position of the other end of the antenna body corresponding to the feed point 3 on the dielectric substrate 1, but the two ends of the antenna body are not contacted, and the notch is arranged between the two ends.
The antenna radiator comprises a high-frequency radiator 4 and a low-frequency radiator, wherein the high-frequency radiator 4 corresponds to a high-frequency working frequency band of the electronic equipment, and the low-frequency radiator corresponds to a low-frequency working frequency band of the electronic equipment. Specifically, one end of the high-frequency radiator 4 is located at the edge of the dielectric substrate 1, and the other end extends toward the center of the side plate surface of the dielectric substrate 1 having the feeding point 3; at least part of the low-frequency radiator protrudes toward the center of the side plate surface of the dielectric substrate 1 having the feeding point 3; the medium substrate 1 is fully utilized to realize the miniaturization design of the antenna, the overall structural size of the antenna is reduced, the design of the light and thin electronic equipment is further adapted, and meanwhile, the performance of the antenna can be ensured.
One end of the coupling branch 2 is positioned at the edge of the dielectric substrate 1, and the other end extends towards the center of the side plate surface of the dielectric substrate 1 with the feed point 3. The coupling branch 2 is used for electric field coupling with an antenna radiator so as to excite resonance with a set frequency when the feed point 3 feeds in excitation; for example, the high-frequency radiator 4 radiates resonance at a high frequency and the low-frequency radiator radiates resonance at a low frequency.
The antenna body is designed to be arranged in a structure form of a circle around the edge of the dielectric substrate 1, the antenna radiator comprises a high-frequency radiator 4 and a low-frequency radiator, one end of the high-frequency radiator 4 is positioned at the edge of the dielectric substrate 1, and the other end extends towards the center of a side plate surface of the dielectric substrate 1 with a feed point 3; at least part of the low-frequency radiator protrudes towards the center of the side plate surface of the dielectric substrate 1 with the feed point 3; one end of the coupling branch 2 is positioned at the edge of the dielectric substrate 1, and the other end extends towards the center of a side plate surface of the dielectric substrate 1 with the feed point 3; the coupling branch 2 is used for electric field coupling with the antenna radiator to excite resonance at a set frequency when the feed point 3 feeds excitation. The utility model realizes the miniaturization design of the antenna, the structural forms of the antenna radiator and the coupling branch 2 fully utilize the space, the integral structural size of the antenna is reduced, the design of the light and thin electronic equipment is further adapted, and the performance of the antenna is ensured.
In some embodiments, the width of the high frequency radiator 4 is greater than the width of the low frequency radiator, and the high frequency radiator 4 is electric field coupled with the coupling stub 2 to excite resonance at a first set frequency when the feed point 3 feeds excitation. That is, in order to excite resonance at the first set frequency when the feeding point 3 feeds excitation, the width of the high-frequency radiator 4 is designed to be larger than that of the low-frequency radiator, and the specific width can be correspondingly set according to the first set frequency. The first set frequency is here greater than the resonance of the corresponding frequency excited by the low-frequency radiator when the feed point 3 feeds the excitation, for example the first set frequency is 5.15GHZ-7.2GHZ. The first setting frequency may be set according to a design requirement of the electronic device.
In some embodiments, the antenna body comprises a first low frequency radiator 5, a second low frequency radiator 6 and a third low frequency radiator 7. The peripheral long branch wiring is used as a WLAN low-frequency radiation unit (such as the frequency is 2.4 GHZ-2.5 GHZ).
The first low-frequency radiator 5 is located between the high-frequency radiator 4 and the coupling branch 2, and two ends of the first low-frequency radiator 5 are respectively connected with the high-frequency radiator 4 and the coupling branch 2. At least one half of the first low-frequency radiator 5 may be arranged along a first side of the rectangular dielectric substrate 1, wherein the high-frequency radiator 4 is also arranged along the first side of the dielectric substrate 1.
The second low frequency radiator 6 is located between the coupling branch 2 and the third low frequency radiator 7, the coupling branch 2 being arranged along the second side of the dielectric substrate 1. Two ends of the second low-frequency radiator 6 are respectively connected with one ends of the coupling branch 2 and the third low-frequency radiator 7. For the rectangular dielectric substrate 1, the second low-frequency radiator 6 is arranged along the third side of the dielectric substrate 1, at least part of the second low-frequency radiator 6 protrudes towards the center of the side plate surface of the dielectric substrate 1 with the feed point 3, so that the low-frequency resonance can be excited when the feed point 3 is fed to excitation, and the space of the middle part of the dielectric substrate 1 is fully utilized.
The third low-frequency radiator 7 is arranged along the fourth side of the rectangular dielectric substrate 1, and the other end of the third low-frequency radiator 7 serves as a free end which may extend toward the center region of the dielectric substrate 1.
The antenna adopts a monopole antenna form, and the design of the miniaturized antenna can be realized by ingenious bending.
In some embodiments, the antenna is configured as a rectangular plate structure having a length of 5.5 millimeters to 5.8 millimeters, a width of 5.5 millimeters to 5.8 millimeters, and a thickness of 0.8 millimeters. That is, the dielectric substrate 1 may employ a rectangular plate having a length of 5.5 mm to 5.8 mm and a width of 5.5 mm to 5.8 mm, and the antenna body is provided on one side plate surface of the rectangular plate such that the thickness of the dielectric substantially integral with the antenna body is 0.8 mm. The antenna is used as a radiation unit, the line length of 1/4 medium wavelength is ensured, the size of the antenna is effectively reduced through the bending arrangement of the antenna body, the normal radiation performance of the antenna is ensured, and the antenna is more suitable for the requirements of electronic equipment on the design of light and thin design. In addition, compared with the traditional antenna structure with the structure size of 25mm in length, 10mm in width and 0.8m in thickness, the structure size of the antenna is reduced by 80%, and the cost of the antenna plate is reduced by more than 70%. The antenna can be made of FR4 material with relatively low price and stable performance, the dielectric constant (relative permittivity) is 4.2, the dielectric loss (dielectric loss tangent) is 0.02, and the material is widely applied to the design of notebook computer antennas and has good stability.
In some embodiments, there are a plurality of coupling studs 2, and the plurality of coupling studs 2 are arranged at intervals along the second side of the dielectric substrate 1. The lengths of the coupling branches 2 can be designed into different lengths, and the coupling branches 2 with different lengths are respectively used for electric field coupling with the high-frequency radiator 4 and the low-frequency radiator, so that electromagnetic oscillation of high frequency and low frequency is enhanced, and the improvement of the width of the working bandwidth is facilitated. In some embodiments, the antenna is configured to cover at least the operating frequency bands of WIFI2.4G, WIFI5G, and WIFI 6E.
Simulation verification is carried out on the antenna by adopting electromagnetic simulation software, and a return loss characteristic result is shown in fig. 2, wherein the abscissa represents Frequency (Frequency/GHz) and the ordinate represents return loss. As can be seen from fig. 2, the Return Loss (Return Loss) performance of the antenna well meets the Specification (SPEC) requirements of the notebook WLAN. Further, fig. 3 shows the radiation efficiency of the antenna, with the abscissa representing the Frequency (Frequency/GHz) and the ordinate representing the radiation efficiency. As shown in fig. 3, the radiation efficiency of the antenna is better than-3.8 dB in the operating frequency band, wherein the operating frequency band comprises 2.4-2.5GHZ &5.15GHZ-7.2GHZ.
In some embodiments, the antenna further comprises a ground copper foil 8, one end of the ground copper foil 8 is connected to the dielectric substrate 1, and the other end of the ground copper foil 8 is grounded. The ground copper foil 8 and the feed point 3 provide an electromagnetic field for the antenna radiation.
The utility model also discloses electronic equipment, which comprises a display end and a system end, wherein the shell of the display end is provided with a clearance area, and the electronic equipment further comprises the antenna in any one of the above embodiments arranged in the clearance area.
While various embodiments of the present utility model have been described in detail, the present utility model is not limited to these specific embodiments, and various modifications and embodiments can be made by those skilled in the art on the basis of the inventive concept, and these modifications and modifications should be included in the scope of the claimed utility model.
Claims (10)
1. An antenna applied to electronic equipment is characterized by comprising a dielectric substrate and an antenna body, wherein the antenna body comprises an antenna radiator and a coupling branch;
a feeding point is arranged on one side plate surface of the dielectric substrate;
the antenna body is arranged on a side plate surface of the dielectric substrate, which is provided with the feed point, the antenna body is arranged in a structure form of encircling the edge of the dielectric substrate, and a notch is arranged at the position corresponding to the feed point;
the antenna radiator comprises a high-frequency radiator and a low-frequency radiator, one end of the high-frequency radiator is positioned at the edge of the dielectric substrate, and the other end of the high-frequency radiator extends towards the center of a side plate surface of the dielectric substrate, which is provided with the feed point; at least part of the low-frequency radiator protrudes towards the center of a side plate surface of the dielectric substrate with the feed point;
one end of the coupling branch is positioned at the edge of the medium substrate, and the other end of the coupling branch extends to the center of a side plate surface of the medium substrate with the feed point; the coupling branch is used for electric field coupling with the antenna radiator so as to excite resonance with set frequency when the feed point feeds in excitation.
2. The antenna of claim 1, wherein the high frequency radiator has a width that is greater than a width of the low frequency radiator, and wherein the high frequency radiator is electric field coupled to the coupling branch to excite resonance at a first set frequency when the feed point is excited.
3. The antenna of claim 1, wherein the antenna body comprises a first low frequency radiator, a second low frequency radiator, and a third low frequency radiator;
the first low-frequency radiator is positioned between the high-frequency radiator and the coupling branch, and two ends of the first low-frequency radiator are respectively connected with the high-frequency radiator and the coupling branch;
the second low-frequency radiator is positioned between the coupling branch and the third low-frequency radiator, and two ends of the second low-frequency radiator are respectively connected with one ends of the coupling branch and the third low-frequency radiator;
the other end of the third low-frequency radiator is used as a free end.
4. The antenna of claim 3, wherein the dielectric substrate is rectangular;
the high frequency radiator and at least a portion of the first low frequency radiator are disposed along a first side of the dielectric substrate;
the coupling branches are arranged along the second edge of the medium substrate;
the second low-frequency radiator is arranged along the third side of the dielectric substrate, and at least part of the second low-frequency radiator protrudes along the center of a side surface of the dielectric substrate, which is provided with the feed point, of the dielectric substrate;
the third low frequency radiator is disposed along a fourth side of the dielectric substrate.
5. The antenna of claim 3, wherein there are a plurality of said coupling stubs, a plurality of said coupling stubs being disposed in spaced relation along a second side of said dielectric substrate.
6. The antenna of claim 5, wherein the coupling stubs are different in length, the coupling stubs of different lengths being for electric field coupling with the high frequency radiator and the low frequency radiator, respectively.
7. An antenna according to claim 3, wherein the antenna is configured to cover at least the operating frequency bands of WIFI2.4G, WIFI5G and WIFI 6E.
8. An antenna according to claim 3, wherein the antenna is configured as a rectangular plate structure having a length of 5.5 mm to 5.8 mm, a width of 5.5 mm to 5.8 mm, and a thickness of 0.8 mm.
9. The antenna of claim 3, further comprising a ground copper foil, one end of the ground copper foil being connected to the dielectric substrate, the other end of the ground copper foil being grounded.
10. An electronic device comprising a display end and a system end, the housing of the display end having a clear space, characterized in that the electronic device further comprises an antenna according to any of claims 1 to 9 arranged in the clear space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321664437.6U CN220172368U (en) | 2023-06-27 | 2023-06-27 | Antenna and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321664437.6U CN220172368U (en) | 2023-06-27 | 2023-06-27 | Antenna and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220172368U true CN220172368U (en) | 2023-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321664437.6U Active CN220172368U (en) | 2023-06-27 | 2023-06-27 | Antenna and electronic equipment |
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| Country | Link |
|---|---|
| CN (1) | CN220172368U (en) |
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- 2023-06-27 CN CN202321664437.6U patent/CN220172368U/en active Active
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