CN219393704U - Antenna and electronic equipment - Google Patents
Antenna and electronic equipment Download PDFInfo
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- CN219393704U CN219393704U CN202320552888.4U CN202320552888U CN219393704U CN 219393704 U CN219393704 U CN 219393704U CN 202320552888 U CN202320552888 U CN 202320552888U CN 219393704 U CN219393704 U CN 219393704U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The utility model provides an antenna and electronic equipment. The antenna comprises: a dielectric substrate, one side of which is provided with a feed point; an antenna radiator arranged on a side plate surface of the dielectric substrate with a feed point; the antenna radiator comprises a radio frequency plate and a grounding plate, and one end of the radio frequency plate is connected with the grounding plate; the radio frequency board is in a plane reverse F shape, and a first gap is formed in the radio frequency board; the parasitic branch is positioned between the radio frequency board and the grounding plate and is connected with the grounding plate. The radio frequency plate part of the antenna radiator is designed to be in a plane inverted F shape, and the parasitic branch is arranged between the radio frequency plate and the grounding plate so as to meet the requirement of miniaturization of the antenna. The first gap is used for increasing the current path of the radio frequency board when the feed point feeds in excitation so as to increase the resonant frequency of the radio frequency board; the parasitic branches are used for electric field coupling with the radio frequency board so as to excite resonance with set frequency when the feed point feeds in excitation; so as to meet the requirements of multiple frequency bands such as high frequency band, low frequency band and the like of the electronic equipment.
Description
Technical Field
The present utility model relates to the field of antennas for electronic devices, and in particular, to an antenna and an electronic device.
Background
The fifth generation mobile communication technology (5G) is based on the fourth generation mobile communication, and is newly added with 5G Sub-6G frequency bands of 3300-3400MHz, 3400-3600MHz and 4800-5000 MHz. For wireless communication systems, antennas are an important device for signal transmission or reception, which is one of the most critical components of the communication system. Related studies of Sub-6G antennas in notebook computers are rarely seen; at present, most of the notebook computer antennas used in the wireless wide area network (Wireless Wide Area Network, WWAN) in the market are still concentrated on the 4G antenna, and the notebook computer WWAN antenna is necessarily covered by the 4G frequency band to the 5G Sub-6G frequency band gradually in the future.
Similarly, wireless local area networks (Wireless Local Area Network, WLAN) are currently increasingly demanded by users as the most widely used communication technology in the present application. On the one hand, along with the pursuit of aesthetic feeling and texture of the notebook computer by users, the notebook computer design of the metal shell is more and more favored by consumers due to the firmness, wear resistance and better use touch, on the other hand, along with the main stream design trend of miniaturization of the notebook computer, the reserved area for the notebook computer antenna design is smaller and smaller, and the notebook computer antenna faces a plurality of challenges. Therefore, how to achieve miniaturization of the antenna and reduce the space occupied by the antenna in the notebook computer, and how to achieve broadband coverage of the antenna of the notebook computer is a problem to be solved.
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 installation problem caused by the influence of the installation space on the size of the antenna structure in the related art and the problem that the small-sized antenna cannot meet the requirement of the electronic product on the coverage of multiple frequency bands such as high frequency band and low frequency band.
The embodiment of the utility model adopts the following technical scheme: an antenna for use in an electronic device, comprising:
a dielectric substrate, one side of which is provided with a feed point;
an antenna radiator arranged on a side plate surface of the dielectric substrate with a feed point; the antenna radiator comprises a radio frequency plate and a grounding plate, and one end of the radio frequency plate is connected with the grounding plate; the radio frequency board is in a plane inverted F shape, a first gap is formed in the radio frequency board, and the first gap is used for increasing a current path of the radio frequency board when the feeding point feeds in excitation so as to increase the resonance frequency of the radio frequency board;
parasitic branches are positioned between the radio frequency board and the grounding board and are connected with the grounding board; the parasitic branches are used for electric field coupling with the radio frequency board so as to excite resonance with set frequency when the feed point feeds excitation.
In some embodiments, the radio frequency board includes a transverse portion and a vertical portion, and the first slit is disposed on the transverse portion and has an extension direction consistent with an extension direction of the transverse portion.
In some embodiments, the parasitic dendrite includes a first part and a second part arranged in parallel along an extension direction of the lateral part, one end of the first part is connected with the ground plate and extends toward the radio frequency plate, and the other end of the first part is connected with a side of the second part near one end of the radio frequency plate.
In some embodiments, a second slit is formed between the first portion and the second portion, the second slit extending in a direction parallel to the direction of extension of the vertical portion.
In some embodiments, the transverse portion is perpendicular to the vertical portion and one end of the vertical portion is connected to one end of the transverse portion and extends toward the ground plate.
In some embodiments, a side of the second portion of the parasitic branch proximate to one end of the lateral portion extends toward the vertical portion; a side of the second portion facing the vertical portion is formed in a stepped shape.
In some embodiments, the dielectric substrate has a thickness of 0.3mm to 0.5mm.
In some embodiments, the resonant frequency of the set frequency band emitted by the antenna covers at least the Sub-6G frequency band of 699-960MHz, 1710-2690MHz, and 3000-5000MHz and the 5150-5850MHz operating in the 5Ghz radio wave band.
In some embodiments, the antenna further comprises a ground copper foil, one end of the ground copper foil is connected with the ground plate, and the other end of the ground copper foil is grounded.
The utility model also provides 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 arranged in the clearance area.
The embodiment of the utility model has the beneficial effects that:
the radio frequency plate part of the antenna radiator is designed to be in a plane inverted F shape, and the parasitic branch is arranged between the radio frequency plate and the grounding plate so as to meet the requirement of miniaturization of the antenna. In addition, a first gap is formed on the radio frequency board and is used for increasing the current path of the radio frequency board when the feed point feeds in excitation so as to increase the resonance frequency of the radio frequency board; meanwhile, a parasitic branch is arranged between the radio frequency board and the grounding board and is used for electric field coupling with the radio frequency board so as to excite resonance with set frequency when the feed point feeds in excitation; so as to meet the requirements of the electronic equipment on the high frequency band, the low frequency band and other multi-frequency bands.
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 graph comparing the simulation data and the measured data of the antenna according to the present utility model to test S11 echo curve.
Fig. 3 is a graph of an antenna efficiency test according to the present utility model.
Fig. 4 is a schematic diagram of another structure of the antenna of the present utility model.
Reference numerals: the antenna comprises a dielectric substrate 1, an antenna radiator 2, a radio frequency board 201, a 2011 transverse part, a 2012 vertical part, a 202 grounding plate, a 3 parasitic branch, a 301 first part, a 302 second part, a 303 second gap, a 4 feeding point, a 5 first gap and a 6 grounding copper foil.
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 art, the utility model provides an antenna, which is applied to electronic equipment.
As shown in fig. 1, an antenna according to an embodiment of the present utility model includes a dielectric substrate 1, an antenna radiator 2, and a parasitic stub 3.
Wherein, a feeding point 4 is arranged on one side plate surface of the dielectric substrate 1.
The antenna radiator 2 is arranged on the same side surface of the dielectric substrate 1, i.e. the antenna radiator 2 is arranged on the side surface of the dielectric substrate 1 with the feeding point 4, so that the antenna radiator 2 and the feeding point 4 are positioned on the same side of the dielectric substrate 1. The antenna radiator 2 comprises a radio frequency board 201 and a grounding plate 202, and one end of the radio frequency board 201 is connected with the grounding plate 202; the radio frequency board 201 is in a planar inverted-F shape, that is, a bent PIFA antenna is adopted, so that the size of the antenna is reduced as much as possible, and the miniaturization of the antenna is realized. In addition, the PIFA antenna has the advantages of small size, light weight, high radiation efficiency and the like. By exciting 617-960MHz resonance with the meander-type PIFA antenna body trace, the sum of the resonance length and the antenna height of the PIFA antenna is the quarter of the operating wavelength of the corresponding frequency. Based on the PIFA antenna, the radio frequency board 201 is provided with the first slot 5, and the first slot 5 is used for increasing the current path of the radio frequency board 201 when the feeding point 4 feeds in excitation, so as to increase the resonant frequency of the radio frequency board 201, and further realize the coverage of the antenna on the high-frequency resonant frequency band.
The parasitic branch 3 is located between the radio frequency board 201 and the ground plate 202, and the parasitic branch 3 is connected to the ground plate 202. The parasitic branch 3 is used for electric field coupling with the radio frequency board 201 to excite resonance at a set frequency when the feed point 4 feeds excitation. The parasitic branch 3 is arranged on the grounding plate 202 of the antenna radiator 2, so that the resonance of the medium-high frequency antenna is excited, and the overall radiation bandwidth of the antenna is effectively widened due to the coupling between the branch in the antenna and the PIFA antenna. Namely, the radio frequency plate 201 and the parasitic branch 3 of the antenna radiator 2 respectively correspond to low-frequency resonance and high-frequency resonance, the coupling effect can excite the frequency between the two, or the low frequency or the high frequency, and finally, the coverage of the antenna to the common communication frequency band and the high-frequency 5G Wi-Fi frequency band is realized. The result of simulation and actual test on the broadband antenna of the electronic equipment provided with the antenna shows that the impedance bandwidth of the antenna is good, the antenna efficiency is basically above-6 dB, and the antenna has certain practical engineering application value. Specifically, as shown in fig. 2, the abscissa represents the frequency, the ordinate represents the S11 return loss corresponding to the frequency, the two curves respectively correspond to the simulated S11 return loss and the actually tested S11 return loss, and the deeper the return loss of S11 is, the better the impedance matching of the representative antenna is, and the two curves are consistent to indicate that the simulation data and the actually measured data of the antenna are relatively consistent. As shown in fig. 3, the abscissa represents the frequency, the ordinate represents the antenna efficiency corresponding to the frequency, and the larger the value of the antenna efficiency is, the better the radiation performance of the antenna is, and it can be seen from the figure that the efficiency of the antenna is higher, that is, the radiation performance of the antenna is better.
The utility model designs the radio frequency board 201 part of the antenna radiator 2 to be in a plane inverted F shape, and arranges the parasitic branch 3 between the radio frequency board 201 and the grounding plate 202 so as to meet the requirement of miniaturization of the antenna. In addition, a first slot 5 is formed on the radio frequency board 201, so as to increase the current path of the radio frequency board 201 when the feeding point 4 feeds in excitation, so as to increase the resonant frequency of the radio frequency board 201; meanwhile, a parasitic branch 3 is arranged between the radio frequency board 201 and the grounding board 202, and the parasitic branch 3 is used for electric field coupling with the radio frequency board 201 so as to excite resonance with a set frequency when the feed point 4 feeds in excitation; so as to meet the requirements of the electronic equipment on the high-frequency band, the low-frequency band and other multi-frequency bands.
In some embodiments, the radio frequency board 201 includes a transverse portion 2011 and a vertical portion 2012, and the first slot 5 is disposed on the transverse portion 2011 and has an extension direction consistent with the extension direction of the transverse portion 2011. The design requirement of the first gap 5 on the size of the radio frequency board 201 is reduced as much as possible while the resonance frequency of the radio frequency board 201 is increased through the first gap 5; that is, the first slit 5 may be opened along the extending direction of the transverse portion 2011 of the rf board 201.
In some embodiments, the transverse portion 2011 and the vertical portion 2012 of the radio frequency board 201 are vertically arranged, and one end of the vertical portion 2012 is connected to one end of the transverse portion 2011, and the other end extends toward the ground plate 202.
The parasitic branch 3 adopts a bent structure form, and for convenience of clear description, the parasitic branch 3 is divided into two parts for description and introduction. Specifically, the parasitic branch 3 includes a first portion 301 and a second portion 302 that are disposed in parallel along an extending direction of the transverse portion 2011, where one end of the first portion 301 is connected to the ground plate 202 and extends toward the radio frequency plate 201 to form the other end of the first portion 301 near the radio frequency plate 201; the other end of the first portion 301 is connected to a side of the second portion 302 near one end of the rf plate 201. The parasitic branch 3 is arranged between the radio frequency board 201 and the grounding plate 202, and is designed into a bent structure, so that the space between the radio frequency board 201 and the grounding plate 202 is utilized as much as possible, and the miniaturization of the antenna is realized.
A second slit 303 is also formed between the first portion 301 and the second portion 302, the extending direction of the second slit 303 being parallel to the extending direction of the vertical portion 2012. That is, the second portion 302 has a block structure, and a side of the second portion 302 of the parasitic branch 3, which is close to one end of the transverse portion 2011, extends toward the vertical portion 2012, so that the second gap 303 is formed between the second portion 302 and the first portion 301, and the parasitic branch 3 forms a bent structure as a whole. The side of the second portion 302 facing the vertical 2012 is formed in a step shape to adapt to the frequency bands of different frequencies that the antenna needs to cover.
The dielectric substrate 1 may be made of an FR-4 material having a dielectric constant of 4.3 and a loss tangent of 0.025, and the thickness of the dielectric substrate 1 is 0.3mm to 0.5mm, preferably 0.4mm. The feeding can be realized by adopting a feeder, and the feeder can adopt a coaxial line with the length of 250mm and the diameter of 1.13 mm.
In some embodiments, the resonant frequencies of the set frequency bands emitted by the antenna at least cover Sub-6G frequency bands of 699-960MHz, 1710-2690MHz and 3000-5000MHz and 5150-5850MHz operating in the 5Ghz radio wave frequency band to meet the requirements of the electronic device for each frequency band in different network modes.
In some embodiments, with reference to fig. 4, the antenna further includes a ground copper foil 6, one end of the ground copper foil 6 is connected to the ground plate 202, and the other end of the ground copper foil 6 is grounded.
The utility model also provides an electronic device, taking the electronic device as a notebook computer as an example, the notebook computer comprises a display end and a system end, a shell of the display end is provided with a clearance area, and the electronic device also comprises the antenna arranged in the clearance area.
For an antenna of a notebook computer, the overall size of the antenna is approximately: 70mm 11.5mm 0.4mm, and the size of the ground copper foil 6 is approximately 60mm 14mm. The compact antenna structure design is realized, and the application requirement of the notebook computer on the broadband and miniaturized antenna can be met. For other types of electronic devices, the overall dimensions of the antenna may be appropriately sized accordingly.
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 for use in an electronic device, comprising:
a dielectric substrate, one side of which is provided with a feed point;
an antenna radiator arranged on a side plate surface of the dielectric substrate with a feed point; the antenna radiator comprises a radio frequency plate and a grounding plate, and one end of the radio frequency plate is connected with the grounding plate; the radio frequency board is in a plane inverted F shape, a first gap is formed in the radio frequency board, and the first gap is used for increasing a current path of the radio frequency board when the feeding point feeds in excitation so as to increase the resonance frequency of the radio frequency board;
parasitic branches are positioned between the radio frequency board and the grounding board and are connected with the grounding board; the parasitic branches are used for electric field coupling with the radio frequency board so as to excite resonance with set frequency when the feed point feeds excitation.
2. The antenna of claim 1, wherein the radio frequency board comprises a transverse portion and a vertical portion, the first slot is disposed on the transverse portion, and an extension direction thereof coincides with an extension direction of the transverse portion.
3. The antenna according to claim 2, wherein the parasitic stub includes a first portion and a second portion disposed in parallel along an extending direction of the transverse portion, one end of the first portion is connected to the ground plate and extends toward the radio frequency plate, and the other end of the first portion is connected to a side of the second portion near one end of the radio frequency plate.
4. An antenna according to claim 3, wherein a second slot is formed between the first and second portions, the second slot extending in a direction parallel to the direction of extension of the vertical portion.
5. An antenna according to claim 3, wherein the transverse portion is perpendicular to the vertical portion and one end of the vertical portion is connected to one end of the transverse portion and extends in a direction towards the ground plane.
6. An antenna according to claim 3, wherein a side of the second portion of the parasitic stub adjacent to one end of the transverse portion extends in the direction of the vertical portion; a side of the second portion facing the vertical portion is formed in a stepped shape.
7. The antenna of claim 1, wherein the dielectric substrate has a thickness of 0.3mm to 0.5mm.
8. The antenna of claim 1, wherein the resonant frequencies of the set frequency bands emitted by the antenna cover at least Sub-6G frequency bands of 699-960MHz, 1710-2690MHz and 3000-5000MHz and 5150-5850MHz operating in the 5Ghz radio wave band.
9. The antenna of claim 1, further comprising a ground copper foil, one end of the ground copper foil being connected to the ground plane, 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 |
|---|---|---|---|
| CN202320552888.4U CN219393704U (en) | 2023-03-16 | 2023-03-16 | Antenna and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320552888.4U CN219393704U (en) | 2023-03-16 | 2023-03-16 | Antenna and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219393704U true CN219393704U (en) | 2023-07-21 |
Family
ID=87197059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320552888.4U Active CN219393704U (en) | 2023-03-16 | 2023-03-16 | Antenna and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219393704U (en) |
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2023
- 2023-03-16 CN CN202320552888.4U patent/CN219393704U/en active Active
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