CN114552173A - Antenna structure and electronic device - Google Patents
Antenna structure and electronic device Download PDFInfo
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- CN114552173A CN114552173A CN202011340119.5A CN202011340119A CN114552173A CN 114552173 A CN114552173 A CN 114552173A CN 202011340119 A CN202011340119 A CN 202011340119A CN 114552173 A CN114552173 A CN 114552173A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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Abstract
The present disclosure relates to an antenna structure and an electronic device. The antenna structure includes: feeding points; the radiator is electrically connected with the feed point and comprises a low-frequency radiator positioned on one side of the feed point and a high-frequency radiator positioned on the other side of the feed point; the parasitic branch knot is positioned on one side, far away from the feed point, of the high-frequency radiator; the low-frequency radiator comprises a first grounding point and a lead, wherein the first grounding point is electrically connected to the low-frequency radiator through the lead, and the connection position of the lead and the low-frequency radiator is arranged close to the feed point relative to the first grounding point.
Description
Technical Field
The present disclosure relates to the field of terminal technologies, and in particular, to an antenna structure and an electronic device.
Background
When a user holds the electronic device for conversation, the antenna is inevitably shielded to a certain extent, so that the conversation effect is poor. In fact, holding the electronic device for conversation is one of the most frequent application scenarios in the process of using the electronic device by the user, and therefore, how to improve the communication effect in the holding scenario is very important for various manufacturers.
Disclosure of Invention
The present disclosure provides an antenna structure and an electronic device to solve the disadvantages of the related art.
According to a first aspect of embodiments of the present disclosure, there is provided an antenna structure, comprising:
feeding points;
the radiator is electrically connected with the feed point and comprises a low-frequency radiator positioned on one side of the feed point and a high-frequency radiator positioned on the other side of the feed point;
the parasitic branch knot is positioned on one side, far away from the feed point, of the high-frequency radiator;
the low-frequency radiator comprises a first grounding point and a lead, wherein the first grounding point is electrically connected to the low-frequency radiator through the lead, and the connection position of the lead and the low-frequency radiator is arranged close to the feed point relative to the first grounding point.
Optionally, the method further includes:
and the second grounding point is electrically connected with the parasitic branch node.
Optionally, the high-frequency radiator is bent relative to the feed point and then extends in the same direction as the low-frequency radiator.
Optionally, the length of the low-frequency radiator is one quarter of the wavelength of the antenna signal radiated by the low-frequency radiator.
Optionally, the length of the high-frequency radiator is one quarter of the wavelength of the antenna signal radiated by the high-frequency radiator.
Optionally, the length of the radiator is three-quarters of the wavelength of the intermediate frequency signal radiated by the electronic device.
According to a second aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including:
the frame comprises a bottom side frame and a frame main body connected with the bottom side frame;
in the antenna structure according to any of the above embodiments, the antenna structure is disposed on the inner surfaces of the bottom side frame and the frame main body, and the feeding point and the first grounding point are located in the middle of the bottom side frame in the width direction of the bottom side frame.
Optionally, the bottom side frame includes a connector opening, the feed point is located on a first side of the connector opening, the first ground point is located on a second side of the connector opening, and the first side and the second side are disposed along a width direction of the frame.
Optionally, the high-frequency radiator is bent and extended toward the first side above the connector opening relative to the feed point; and/or the low frequency radiator extends towards the first side below the connector opening with respect to the feed point;
at least a portion of the antenna slot is located below the connector opening.
Optionally, the antenna structure further includes a second grounding point connected to the parasitic stub, where the second grounding point is located at a corner of the frame.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
according to the embodiment, the radiating body can be separated into the low-frequency radiating body for radiating the low-frequency signal and the high-frequency radiating body for radiating the high-frequency signal in the electronic equipment in the disclosure, the low-frequency signal and the high-frequency signal can be radiated outwards in the middle of the frame, the intermediate-frequency signal can be radiated outwards in the middle of the frame by arranging the parasitic branch knot, so that the good antenna efficiency of the electronic equipment can be kept under the left-hand condition or the right-hand condition, the frequency modulation can be realized without switching of a switching circuit, the antenna structure can be simplified, and the cost is saved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic diagram illustrating an antenna structure according to an exemplary embodiment.
FIG. 2 is a schematic diagram illustrating an electronic device radiating a low frequency signal in accordance with an exemplary embodiment.
FIG. 3 is a schematic diagram illustrating an electronic device radiating high frequency signals in accordance with an exemplary embodiment.
Fig. 4 is a schematic diagram illustrating an electronic device radiating an intermediate frequency signal in accordance with an exemplary embodiment.
Fig. 5 is a schematic structural diagram of an electronic device according to an exemplary embodiment.
FIG. 6 is a partially expanded schematic view of an electronic device shown in accordance with an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
Fig. 1 is a schematic structural diagram illustrating an antenna structure 100 according to an exemplary embodiment, where the antenna structure 100 may include a feed point 1, a radiator 2, a parasitic branch 3, a first ground point 4, a conductive line 5, and a second ground point 7, as shown in fig. 1 and 2. The radiator 2 is electrically connected to the feed point 1, so that the radiator 2 can be separated by the feed point 1 into a low-frequency radiator 21 located on one side of the feed point 1 and a high-frequency radiator 22 located on the other side of the feed point 1, and the relationship between the one side and the other side of the feed point 1 in circuit connection does not relate to physical orientation. The parasitic branch 3 may be disposed on a side of the high frequency radiator 22 away from the feed point 1, and radiates an antenna signal by coupling with the high frequency radiator 22, the second ground point 7 may be electrically connected to the parasitic branch 3, the first ground point 4 may be electrically connected to the low frequency radiator 21 by a conductive wire 5, and the conductive wire 5 may extend along a length direction of the low frequency radiator 21, and a connection position of the conductive wire 5 and the low frequency radiator 21 is closer to the feed point 1 than the first ground point 4, so that the antenna signal from the low frequency radiator 21 may flow toward the feed point first and then turn back to the first ground point 4 by the conductive wire 5, thereby forming the antenna slot 6.
As shown in fig. 1, based on the structure of the antenna structure 100, the low frequency radiator 21 is located on the left side of the whole antenna structure 100, and passes through the antenna slot 6 between the low frequency radiator 21 and the conducting wire 5, as shown in fig. 2, the strong current of the low frequency can be concentrated on the area of the low frequency radiator 21 close to the middle of the antenna structure 100, that is, when the user holds the electronic device equipped with the antenna structure 10 with either the left hand or the right hand to communicate or receive voice information close to the ear, since the radiation of the low frequency signal mainly depends on the area of the low frequency radiator 21 located in the middle, the influence of the hand holding on the low frequency signal transmission can be reduced.
Similarly, as shown in fig. 3, since the parasitic branch 3 is further disposed on the side of the high-frequency radiator 22 away from the feed point 1, based on the overall structure of the antenna structure 100, the high-frequency radiator 22 is close to the middle region of the antenna structure 100 relative to the parasitic branch 3, so that when the electronic device is held by a hand, the influence of the hand holding on the high-frequency signal transmission can be reduced. As shown in fig. 4, by providing the parasitic branch 3 on the side of the high-frequency radiator 22 away from the feed point 1, the electrical signal on the high-frequency radiator 22 can be coupled to the parasitic branch 3, and the frequency of the antenna signal generated by the high-frequency radiator 22 can be lowered through the parasitic branch 3, so as to realize radiation of the intermediate-frequency signal, thereby reducing the influence of hand holding on the transmission of the intermediate-frequency signal.
According to the embodiment, in the electronic device, the radiator 2 can be separated into the low-frequency radiator 21 for radiating the low-frequency signal and the high-frequency radiator 22 for radiating the high-frequency signal, the low-frequency signal and the high-frequency signal can be radiated outwards in the middle of the frame 8, the intermediate-frequency signal can be radiated outwards in the middle of the frame 8 by arranging the parasitic branch 3, so that the good antenna efficiency of the electronic device can be kept under the left-hand condition or the right-hand condition, the frequency modulation is realized without adopting switching of a switch circuit, the antenna structure can be simplified, and the cost is saved.
Still as shown in fig. 1, the high-frequency radiator 22 may extend in the same direction as the low-frequency radiator 21 after being bent with respect to the feed point 1, so that the position of the parasitic branch 3 may be provided on the right side of the physical position of the feed point 1, and the high-frequency radiator 22 may extend toward the middle of the antenna structure 100, and compared with a scheme in which the high-frequency radiator 22 and the low-frequency radiator 21 extend in different directions, on one hand, the width of the whole antenna structure 100 may be shortened, so as to facilitate subsequent configuration into an electronic device, and on the other hand, the high-frequency radiator 22 may be advantageously configured in the middle of the antenna structure 100, so as to reduce the radiation influence of the left-handed or right-handed situation on the antenna signal. Wherein the length of the low frequency radiator 21 is about one quarter of the wavelength of the antenna signal radiated by the low frequency radiator 21, wherein the frequency of the antenna signal of the low frequency may be about 900 MHz; the length of the high frequency radiator 22 is one quarter of the wavelength of the antenna signal radiated by the high frequency radiator 22, wherein the high frequency antenna signal may be about 2700 MHz; the total length of the radiator 2 is three quarters of the wavelength of the intermediate frequency signal radiated by the electronic device 200, and the frequency of the antenna signal of the intermediate frequency may be about 1800MHz, for example.
Based on the technical scheme of the present disclosure, an electronic device 200 as shown in fig. 5 is further provided, and fig. 6 is a partially expanded view of fig. 5. The electronic device 200 may include the antenna structure 100 and the bezel 8, the bezel 8 may include a bottom side bezel 81 and a bezel main body 82 connected to the bottom side bezel 81, the antenna structure 100 may be disposed on inner surfaces of the bottom side bezel 81 and the bezel main body 82, and the feed point 1 and the first ground point 4 are both located in a middle portion of the bottom side bezel 81 in a width direction of the bottom side bezel 81. Thus, the antenna signal can radiate outward from the middle of the bottom side frame 81, reducing the influence of the hand holding. The second grounding point 7 may be located at a corner of the bezel 8, or the electronic device 200 may further comprise a motor arranged close to the parasitic stub 3, and the second grounding point 8 may be arranged close to the motor.
In an embodiment of the present disclosure, the bottom side bezel 81 may include a connector opening 811, the connector opening 811 may include a USB connector interface, the feed point 2 may be located on a first side of the connector opening 811, and the first ground point 4 is located on a second side of the connector opening 811, the first and second sides may be disposed along a width direction of the bottom side bezel 81. In this way, the layout of the low frequency radiator 21 and the high frequency radiator 22 can be facilitated by arranging the feed point 1 and the first ground point 4 on opposite sides of the connector opening 811, for example, as shown in fig. 6, the high frequency radiator 22 can extend above the connector opening 811 toward the first side with respect to the feed point 1, whereby since the connector opening 811 is usually arranged in the middle of the bottom-side bezel 81, arranging the high frequency radiator 22 to extend toward the first side on the basis of the second side can ensure that the high frequency radiator 22 is located in the middle of the bottom-side bezel 81; while the low frequency radiator 21 may extend below the connector opening 811 towards the first side with respect to the feed point 1, at least a part of the antenna slot 6 may be located below the connector opening 811, whereby it may be ensured that a part of the low frequency radiator is located in the middle of the bottom side frame 81, so that a low frequency signal may be radiated in an area of the low frequency radiator 21 located in the middle of the bottom side frame 81 by the action of the antenna slot 6.
Based on the embodiment of the technical solution of the present disclosure, the situation of obtaining the antenna signal of the electronic device 200 within the radiation frequency band is shown in table 1:
TABLE 1
Wherein, BAND is a frequency BAND, CHANNEL is a CHANNEL, condition is a conductivity, FS is a radiation efficiency of the electronic device in a free space, BHHR is a radiation efficiency of the electronic device under a right-hand condition, BHHL is a radiation efficiency of the electronic device under a left-hand condition, VDF SPEC is a requirement of an international operator, GAP1 is a difference between requirements of the electronic device under the left-hand condition and the international operator, and GAP2 is a difference between requirements of the electronic device under the right-hand condition and the international operator. As shown in table 1, the radiation efficiency of the electronic device 200 in the left-hand case and the right-hand case is substantially equal to that in the free space, and the requirements of the international operator can be substantially satisfied, which meets the requirements of the practical application.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. An antenna structure, comprising:
feeding points;
the radiator is electrically connected with the feed point and comprises a low-frequency radiator positioned on one side of the feed point and a high-frequency radiator positioned on the other side of the feed point;
the parasitic branch knot is positioned on one side, far away from the feed point, of the high-frequency radiator;
the low-frequency radiator comprises a first grounding point and a lead, wherein the first grounding point is electrically connected to the low-frequency radiator through the lead, and the connection position of the lead and the low-frequency radiator is arranged close to the feed point relative to the first grounding point.
2. The antenna structure according to claim 1, further comprising:
and the second grounding point is electrically connected with the parasitic branch node.
3. The antenna structure of claim 1, wherein the high frequency radiator is bent with respect to the feed point to extend in the same direction as the low frequency radiator.
4. The antenna structure of claim 1, characterized in that the length of the low frequency radiator is one quarter of the antenna signal wavelength radiated by the low frequency radiator.
5. The antenna structure according to claim 1, characterized in that the length of the high frequency radiator is a quarter of the wavelength of the antenna signal radiated by the high frequency radiator.
6. The antenna structure according to claim 1, characterized in that the length of the radiator is three quarters of the wavelength of the intermediate frequency signals radiated by the antenna structure.
7. An electronic device, comprising:
the frame comprises a bottom side frame and a frame main body connected with the bottom side frame;
the antenna structure according to any one of claims 1 to 6, wherein the antenna structure is provided on inner surfaces of the bottom side bezel and the bezel main body, and the feeding point and the first ground point are located in a middle portion of the bottom side bezel in a width direction of the bottom side bezel.
8. The electronic device of claim 7, wherein the bottom side bezel includes a connector opening, wherein the feed point is located on a first side of the connector opening, wherein the first ground point is located on a second side of the connector opening, and wherein the first side and the second side are disposed along a width of the bezel.
9. The electronic device of claim 8, wherein the high frequency radiator extends bent over the connector opening toward the first side with respect to the feed point; and/or the low frequency radiator extends towards the first side below the connector opening with respect to the feed point;
at least a portion of the antenna slot is located below the connector opening.
10. The electronic device of claim 7, wherein the antenna structure further comprises a second ground point connected to the parasitic stub, the second ground point located at a corner of the bezel.
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| CN202011340119.5A CN114552173B (en) | 2020-11-25 | 2020-11-25 | Antenna structure and electronic equipment |
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| CN202011340119.5A CN114552173B (en) | 2020-11-25 | 2020-11-25 | Antenna structure and electronic equipment |
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