CN215184516U - Antenna structure and electronic device - Google Patents
Antenna structure and electronic device Download PDFInfo
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- CN215184516U CN215184516U CN202121688032.7U CN202121688032U CN215184516U CN 215184516 U CN215184516 U CN 215184516U CN 202121688032 U CN202121688032 U CN 202121688032U CN 215184516 U CN215184516 U CN 215184516U
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Abstract
The application discloses antenna structure and electronic equipment belongs to communication technology field. The first radiation branch knot is provided with a first feed point, and the first feed point is electrically connected with a first feed source; the first feed point and the first end of the first radiation branch node form a first sub-radiation branch node, and the first feed point and the second end of the first radiation branch node form a second sub-radiation branch node; one end of the first circuit is electrically connected with the second end of the first radiation branch knot, and the other end of the first circuit is electrically grounded; the first feed source comprises a WiFi 5.1G frequency band signal and a WiFi 5.8G frequency band signal; the first sub-radiation branch generates a first antenna mode, and the first antenna mode covers a WiFi 5.1G frequency band; the second sub-radiating branch and the first circuit generate a second antenna mode, and the second antenna mode covers a WiFi 5.8G frequency band.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to an antenna structure and electronic equipment.
Background
The conventional PIFA (Planar Inverted-F Antenna) or IFA (Inverted-F Antenna) is generally used as the 5G Antenna of the conventional electronic device, and the conventional PIFA can only generate a single mode by coupling a certain segment of branch, so that the radiation efficiency of the 5G Antenna is not high.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application aims to provide an antenna structure and electronic equipment, and the problem that the radiation efficiency of a 5G antenna is not high can be solved.
In a first aspect, an embodiment of the present application provides an antenna structure, where the method includes:
the first radiation branch knot is provided with a first feed point, and the first feed point is electrically connected with a first feed source; the first feed point and the first end of the first radiation branch node form a first sub-radiation branch node, and the first feed point and the second end of the first radiation branch node form a second sub-radiation branch node;
one end of the first circuit is electrically connected with the second end of the first radiation branch knot, and the other end of the first circuit is electrically grounded;
the first feed source comprises a WiFi 5.1G frequency band signal and a WiFi 5.8G frequency band signal;
the first sub-radiation branch generates a first antenna mode, and the first antenna mode covers a WiFi 5.1G frequency band;
the second sub-radiating branch and the first circuit generate a second antenna mode, and the second antenna mode covers a WiFi 5.8G frequency band.
In a second aspect, an embodiment of the present application provides an electronic device, which includes the antenna structure described in the first aspect.
The antenna structure and the electronic equipment that this application embodiment provided, through first sub-radiation minor matters, sub-radiation minor matters of second and first circuit, so that wiFi 5.1G frequency channel signal produces first antenna mode through first sub-radiation minor matters, wiFi 5.8G frequency channel signal produces the second antenna mode through sub-radiation minor matters of second and first circuit, can ensure to cover wiFi 5.1G frequency channel and wiFi 5.8G frequency channel, thereby realize the bandwidth and expand, 5G antenna's radiant efficiency has been improved.
Drawings
Fig. 1 is one of schematic diagrams of an antenna structure provided according to an embodiment of the present application;
fig. 2 is a second schematic diagram of an antenna structure according to an embodiment of the present application;
fig. 3 is a third schematic diagram of an antenna structure according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The antenna structure and the electronic device provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Fig. 1 is a schematic diagram of an antenna structure according to an embodiment of the present application. Referring to fig. 1, an embodiment of the present application provides an antenna structure, which may include:
a first radiation branch BC, where the first radiation branch BC is provided with a first feed point a, and the first feed point is electrically connected to the first feed source 110; the first feed point a and a first end of the first radiation branch BC form a first sub-radiation branch AB, and the first feed point a and a second end of the first radiation branch BC form a second sub-radiation branch AC;
a first circuit 120, one end of the first circuit 120 is electrically connected to the second end of the first radiating branch BC, and the other end of the first circuit 120 is electrically grounded;
the first feed source 110 includes WiFi 5.1G frequency band signals and WiFi 5.8G frequency band signals;
the first sub-radiation branch AB generates a first antenna mode, and the first antenna mode covers a WiFi 5.1G frequency band;
the second sub-radiating branch AC and the first circuit 120 generate a second antenna mode, which covers the WiFi 5.8G frequency band.
The antenna structure provided in the embodiments of the present application may be applied to electronic devices, such as mobile phones, tablet computers, notebook computers, palm computers, vehicle-mounted electronic devices, wearable devices, ultra-mobile personal computers (UMPCs), netbooks, or Personal Digital Assistants (PDAs), which are capable of transmitting and receiving electromagnetic wave signals.
The following describes a technical solution of the present application in detail by taking a mobile phone as an example of an electronic device implementing an antenna structure provided in an embodiment of the present application.
Optionally, the first radiation branch BC includes a first sub-radiation branch AB and a second sub-radiation branch AC, an intersection of the first sub-radiation branch AB and the second sub-radiation branch AC is a first feeding point a, and the first feeding point a is electrically connected to the first feed source 110. The first feed 110 comprises WiFi 5.1G band signals and WiFi 5.8G band signals.
The first radiation branch BC may be an integrally formed device, or may be a device formed by separately forming the first sub-radiation branch AB and the second sub-radiation branch AC, respectively and then assembling them. The lengths of the first sub-radiating branch AB and the second sub-radiating branch AC can be adjusted individually or simultaneously according to actual use conditions.
Optionally, the first feed source 110 feeds a WiFi 5.1G frequency band signal to the first sub-radiation branch AB through the first feed point a, so that the first sub-radiation branch AB radiates an electromagnetic wave signal, that is, generates a first antenna mode; the first feed source 110 feeds WiFi 5.8G frequency band signals to the second sub-radiating branch AC through the first feed point a, so that the second sub-radiating branch AC and the first circuit 120 radiate electromagnetic wave signals, i.e. generate a second antenna mode.
Optionally, the working frequency bands covered by the embodiment of the present application are not limited to the WiFi 5.1G frequency band and the WiFi 5.8G frequency band.
The antenna structure that this application embodiment provided, through first sub-radiation minor matters, sub-radiation minor matters of second and first circuit, so that wiFi 5.1G frequency channel signal produces first antenna mode through first sub-radiation minor matters, wiFi 5.8G frequency channel signal produces the second antenna mode through sub-radiation minor matters of second and first circuit, can ensure to cover wiFi 5.1G frequency channel and wiFi 5.8G frequency channel, thereby realize the bandwidth and expand, the radiation efficiency of 5G antenna has been improved.
Fig. 2 is a second schematic diagram of an antenna structure according to an embodiment of the present application. Referring to fig. 2, an embodiment of the present application provides an antenna structure, which may include:
second radiation branch C1E1Said second radiation branch C1E1At least partially opposite the first radiating branch AB.
Optionally, the first feed source 110 feeds a WiFi 5.1G frequency band signal to the first sub-radiation branch AB through the first feed point a, so that the first sub-radiation branch AB radiates an electromagnetic wave signal, and a coupling segment is provided to perform energy coupling with the first sub-radiation branch AB, where the coupling segment may be the second radiation branch C1E1. Due to the second radiation branch C1E1There is a radiation space, the first sub-radiation branch AB mayTo pass through the second radiation branch C1E1The electromagnetic wave energy is radiated out. Wherein E is1Is a ground point.
Optionally, the first sub-branch AB passes through the second branch C1E1Energy coupling may be performed to generate a first antenna mode to cover the WiFi 5.1G frequency band.
Optionally, a second radiation branch C1E1A gap is arranged between the first sub-radiation branch AB and the second sub-radiation branch C1E1Energy coupling is performed with the first sub-radiating branch AB.
Optionally, the shape, size and width of the gap are not specifically limited by the present application. For example: the gap can be a parallel coupling gap and can be arranged on the second radiation branch C1E1And the relative position of the first sub-radiating branch AB may be a partial relative position or a full relative position.
The antenna structure that this application embodiment provided, through the second radiation minor matters as coupling antenna, can realize radiating the electromagnetic wave energy of wiFi 5.1G frequency channel signal high-efficiently, improved the radiation ability and the radiant efficiency of 5G antenna, promoted the performance of 5G antenna by a wide margin.
In one embodiment, the antenna structure further comprises:
third radiation branch B1D1Said third radiation branch B1D1At least part of the second sub-radiation branch AC is arranged opposite to the second sub-radiation branch AC; the third radiation branch B1D1Is provided with a second feeding point A1Said second feeding point A1Electrically connecting the second feed 210;
wherein the second feed 210 comprises at least one of:
n41 frequency band signal, N78 frequency band signal, N79 frequency band signal.
Optionally, the first feed source 110 feeds a WiFi 5.8G frequency band signal to the second sub-radiating branch AC through the first feed point a, so that the second sub-radiating branch AC and the first circuit 120 radiate an electromagnetic wave signal, and a coupling segment and a second circuit are provided at the same timeThe two radiating branches AC are coupled with energy, and the coupling section can be a third radiating branch B1D1. Due to the third radiation branch B1D1There is a radiation space through which the second sub-radiation branch AC can pass through the third radiation branch B1D1The electromagnetic wave energy is radiated out. Wherein D is1Is a ground point.
Optionally, the second sub-branch AC passes through the third branch B1D1Energy coupling may be performed to generate a second antenna mode to cover the WiFi 5.8G band.
Optionally, a third radiation branch B1D1A gap is arranged between the second sub radiation branch AC and the third radiation branch B1D1And energy coupling is carried out with the second sub radiation branch AC.
Optionally, the shape, size and width of the gap are not specifically limited by the present application. For example: the gap can be a parallel coupling gap and can be arranged on the third radiation branch B1D1And the relative position of the second sub-radiation branch AC may be a partial relative position or a full relative position.
The antenna structure that this application embodiment provided, through the third radiation minor matters as coupling antenna, can realize radiating the electromagnetic wave energy of wiFi 5.8G frequency channel signal high-efficiently, improved the radiation ability and the radiant efficiency of 5G antenna, promoted the performance of 5G antenna by a wide margin.
In one embodiment, in a case that the equivalent capacitance of the first circuit 120 is within a first capacitance range, the second sub-radiating stub AC mode electrical length is loaded below the N41 frequency band;
in the case that the equivalent inductance of the first circuit 120 is within a first inductance range, the second sub-radiating stub AC mode electrical length is loaded below the N41 frequency band;
under the condition that the first circuit 120 and the first radiation branch BC are equivalent to a resonant circuit, loading a resonant frequency band of the resonant circuit to a target frequency band;
the target frequency band is a frequency band outside a WiFi 5.1G frequency band and a WiFi 5.8G frequency band.
Optionally, when the first feed source 110 feeds the WiFi 5.8G frequency band signal to the second sub-radiating branch AC through the first feed point a, the first circuit 120 may be equivalent to a capacitor or a resistor, and the equivalent capacitor may be located in a range of the first capacitor or the equivalent inductor is located in a range of the first inductor, and at this time, the first circuit 120 may be grounded.
For example: the first capacitance range is set to 5pF to 10pF, and the first inductance range is set to 0nH to 10 nH. The equivalent capacitance is in the first capacitance range, that is, the first circuit 120 may be equivalent to a large capacitance, and the equivalent inductance is in the first inductance range, that is, the first circuit 120 may be equivalent to a small inductance. The first capacitance range and the first inductance range described above are merely examples, and the present application is not particularly limited.
Optionally, in a case where the first circuit 120 is equivalent to a large capacitance, the second sub-radiating stub AC mode electrical length is loaded below the N41 frequency band. For example: the second sub-radiation branch AC modal electrical length is loaded to the 1G frequency band, because the second sub-radiation branch AC and the third radiation branch B1D1Is not matched, the second sub-radiating branch AC and the third radiating branch B1D1There will be energy reflections in between, and the energy of the second feed 210 will rarely enter the first feed 110.
Optionally, in a case where the first circuit 120 is equivalent to a small inductance, the second sub-radiating stub AC mode electrical length is loaded below the N41 frequency band. The second sub-radiation branch AC modal electrical length is loaded to the 2G frequency band, because the second sub-radiation branch AC and the third radiation branch B1D1Is not matched, the energy of the second feed 210 will rarely enter the first feed 110.
Alternatively, the first circuit 120 may be equivalent to a capacitor, the first radiation stub BC may be equivalent to an inductor, and the first radiation stub BC and the first circuit 120 may be equivalent to a resonant circuit together, so that a resonant frequency band of the resonant circuit is loaded to a frequency band outside the WiFi 5.1G frequency band and the WiFi 5.8G frequency band, for example: an N41 band, an N78 band, or an N79 band. Loading to N41 frequency band and N78 frequency band in resonance frequency bandOr N79 band, a resonant circuit equivalent to the first radiating branch BC and the first circuit 120, and a third radiating branch B1D1Resonates at different frequency bands, thereby reducing the resonant circuit and the third radiation branch B1D1Are coupled with each other.
The antenna structure that this application embodiment provided is through being equivalent to first circuit for different components for the energy of second feed will get into first feed very seldom or reduce the mutual coupling between the equivalent resonant circuit of first radiation minor matters and first circuit and the third radiation minor matters, thereby improves the isolation between first feed and the second feed effectively.
In one embodiment, in a case where the equivalent inductance of the first circuit 120 is within a first inductance range, the antenna structure further includes:
and one end of the high-pass filter circuit is electrically connected with the first feed point A, and the other end of the high-pass filter circuit is electrically connected with the first feed source 110.
Optionally, a high pass filter circuit is added at the first feed 110 to prevent energy from the first feed 110 from entering the second feed 210.
The antenna structure that this application embodiment provided further guarantees the unable second feed that reachs of electromagnetic energy of first feed through high pass filter circuit to realize the high isolation between the dual antenna.
In one embodiment, in the case that the first circuit 120 and the first radiating branch BC are equivalent to a resonant circuit, the first circuit 120 is equivalent to a narrow band pass filter.
Optionally, the narrow band pass filter may comprise a tuning circuit, which may comprise at least one of: one or more adjustable capacitances, one or more adjustable inductances, and combinations of one or more capacitances and inductances. The resonance frequency of the antenna is adjusted by adjusting the capacitance or inductance. In the actual adjusting process, the resonant frequency of the antenna can be adjusted by adjusting the capacitance of the adjustable capacitor, the inductance of the adjustable inductor or adjusting the capacitance and the inductance at the same time, so as to realize narrow-band design.
Optionally, the narrow band pass filter may block electromagnetic energy of the first feed 110 from entering the second feed 210.
The antenna structure that this application embodiment provided through design narrowband band pass filter, can further promote the isolation of first feed and second feed.
Fig. 3 is a third schematic diagram of an antenna structure according to an embodiment of the present application. Referring to fig. 3, an embodiment of the present application provides an antenna structure, which may further include:
a second circuit 310, wherein one end of the second circuit 310 is electrically connected to the first end of the first radiating branch BC, and the other end of the second circuit 310 is grounded;
the first sub-radiating branch AB and the second circuit 310 generate a third antenna mode, and the third antenna mode covers a WiFi 5.1G frequency band;
the second sub-radiating branch AC and the first circuit 120 generate a fourth antenna mode, and the fourth antenna mode covers a WiFi 5.8G frequency band.
Optionally, the first feed source 110 feeds a WiFi 5.1G frequency band signal to the first sub-radiation branch AB through the first feed point a, so that the first sub-radiation branch AB and the second circuit 310 radiate an electromagnetic wave signal, that is, a third antenna mode is generated; the first feed source 110 feeds a WiFi 5.8G frequency band signal to the second sub-radiation branch AC through the first feed point a, so that the second sub-radiation branch AC and the first circuit 120 radiate an electromagnetic wave signal, i.e., a fourth antenna mode is generated.
The antenna structure that this application embodiment provided, through first sub-radiation minor matters, the sub-radiation minor matters of second, first circuit and second circuit, so that wiFi 5.1G frequency channel signal produces the third antenna mode through first sub-radiation minor matters and second circuit, wiFi 5.8G frequency channel signal produces the fourth antenna mode through second sub-radiation minor matters and first circuit, can ensure to cover wiFi 5.1G frequency channel and wiFi 5.8G frequency channel, thereby realize the bandwidth extension, the radiation efficiency of 5G antenna has been improved.
In one embodiment, in a case that the equivalent capacitance of the second circuit 310 is within a second capacitance range, the first sub-radiating branch AB mode electrical length is loaded below the N41 frequency band;
under the condition that the equivalent inductance of the second circuit 310 is within a second inductance range, the first sub-radiating branch AB mode electrical length is loaded below the N41 frequency band;
under the condition that the second circuit 310 and the first sub-radiating branch AB are equivalent to a resonant circuit, the resonant frequency band of the resonant circuit is loaded to the target frequency band.
Optionally, a second radiation branch C1E1And a third radiation branch B1D1A fracture is arranged between the two. In the foregoing embodiment, there is also an energy transmission path that is: the electromagnetic energy of the second feed source 210 passes through the fracture and the second radiation branch C1E1Performing energy coupling, the second radiation branch C1E1And then energy coupling with the first sub-radiating branch AB and finally entering the first feed source 110, so that the optimal isolation cannot be realized. Therefore, in the present embodiment, the antenna structure is added with the second circuit 310.
Optionally, when the first feed source 110 feeds a WiFi 5.8G frequency band signal to the second sub-radiating branch AC through the first feed point a, the second circuit 310 may be equivalent to a capacitor or an inductor, and the equivalent capacitor is located in a second capacitor range or the equivalent inductor is located in a second inductor range, at this time, the second circuit 310 may be grounded.
For example: the second capacitance range is set to 5pF to 10pF, and the second inductance range is set to 0nH to 10 nH. The equivalent capacitance is in the second capacitance range, i.e. the second circuit 310 may be equivalent to a large capacitance, and the equivalent inductance is in the second inductance range, i.e. the second circuit 310 may be equivalent to a small inductance. The second capacitance range and the second inductance range described above are merely examples, and the present application is not particularly limited.
Optionally, in the case that the second circuit 310 is equivalent to a large capacitor, the first sub-radiating stub AB mode electrical length is loaded below the N41 frequency band. For example: the first sub-radiation branch AB modal electrical length is loaded to the 1G frequency band, because the first sub-radiation branch AB and the second radiation branch ABBranch knot C1E1Is not matched, the first sub-radiation branch AB and the second radiation branch C1E1There will be energy reflections in between, and the energy of the second feed 210 will rarely enter the first feed 110.
Optionally, in the case that the second circuit 310 is equivalent to a small inductor, the first sub-radiating branch AB mode electrical length is loaded below the N41 frequency band. The first sub-radiation branch AB modal electrical length is loaded to the 2G frequency band, because the first sub-radiation branch AB and the second radiation branch C1E1Is not matched, the energy of the second feed 210 will rarely enter the first feed 110.
Alternatively, the second circuit 310 may be equivalent to a capacitor, the first sub-radiating branch AB may be equivalent to an inductor, and the first sub-radiating branch AB and the second circuit 310 may be equivalent to a resonant circuit together, so that a resonant frequency band of the resonant circuit is loaded to a frequency band outside the WiFi 5.1G frequency band and the WiFi 5.8G frequency band, for example: an N41 band, an N78 band, or an N79 band. Under the condition that the resonant frequency band is loaded to the N41 frequency band, the N78 frequency band or the N79 frequency band, the equivalent resonant circuit of the first sub-radiating branch AB and the second circuit 310 and the equivalent second radiating branch C1E1Resonates at different frequency bands, thereby reducing the resonant circuit and the second radiation branch C1E1Are coupled with each other.
Optionally, the antenna structure comprises a first circuit 120 and a second circuit 310. The operation of the first circuit 120 is the same as that of the first circuit 120 in the antenna structure provided according to the embodiment of the present application, and is not described herein again.
According to the antenna structure provided by the embodiment of the application, the second circuit is equivalent to different elements, so that the energy of the second feed source rarely enters the first feed source or the mutual coupling between the equivalent resonant circuit of the first sub-radiation branch and the second circuit and the second radiation branch is reduced, and the isolation between the first feed source and the second feed source is effectively improved; and the electromagnetic energy between the first feed source and the second feed source is completely isolated through the first circuit and the second circuit, so that high isolation between the first feed source and the second feed source is realized.
In one embodiment, in case the second circuit 310 and the first radiating branch AB are equivalent to a resonant circuit, the second circuit 310 is equivalent to a narrow band pass filter.
Optionally, the narrow band pass filter may comprise a tuning circuit, which may comprise at least one of: one or more adjustable capacitances, one or more adjustable inductances, and combinations of one or more capacitances and inductances. The resonance frequency of the antenna is adjusted by adjusting the capacitance or inductance. In the actual adjusting process, the resonant frequency of the antenna can be adjusted by adjusting the capacitance of the adjustable capacitor, the inductance of the adjustable inductor or adjusting the capacitance and the inductance at the same time, so as to realize narrow-band design.
Optionally, the narrow band pass filter may block electromagnetic energy of the first feed 110 from entering the second feed 210.
The antenna structure that this application embodiment provided through design narrowband band pass filter, can further promote the isolation of first feed and second feed.
An embodiment of the present application provides an electronic device, where the electronic device includes the antenna structure described in any of the above embodiments, and includes, for example:
the first radiation branch knot is provided with a first feed point, and the first feed point is electrically connected with a first feed source; the first feed point and the first end of the first radiation branch node form a first sub-radiation branch node, and the first feed point and the second end of the first radiation branch node form a second sub-radiation branch node;
one end of the first circuit is electrically connected with the second end of the first radiation branch knot, and the other end of the first circuit is electrically grounded;
the first feed source comprises a WiFi 5.1G frequency band signal and a WiFi 5.8G frequency band signal;
the WiFi 5.1G frequency band signal generates a first antenna mode through the first sub-radiation branch;
the WiFi 5.8G frequency band signal generates a second antenna mode through the second sub-radiating branch and the first circuit.
The electronic equipment that this application embodiment provided, through first sub-radiation minor matters, sub-radiation minor matters of second and first circuit, so that wiFi 5.1G frequency channel signal produces first antenna mode through first sub-radiation minor matters, wiFi 5.8G frequency channel signal produces the second antenna mode through sub-radiation minor matters of second and first circuit, can ensure to cover wiFi 5.1G frequency channel and wiFi 5.8G frequency channel, thereby realize the bandwidth and expand, the radiation efficiency of 5G antenna has been improved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An antenna structure, comprising:
the first radiation branch knot is provided with a first feed point, and the first feed point is electrically connected with a first feed source; the first feed point and the first end of the first radiation branch node form a first sub-radiation branch node, and the first feed point and the second end of the first radiation branch node form a second sub-radiation branch node;
one end of the first circuit is electrically connected with the second end of the first radiation branch knot, and the other end of the first circuit is electrically grounded;
the first feed source comprises a WiFi 5.1G frequency band signal and a WiFi 5.8G frequency band signal;
the first sub-radiation branch generates a first antenna mode, and the first antenna mode covers a WiFi 5.1G frequency band;
the second sub-radiating branch and the first circuit generate a second antenna mode, and the second antenna mode covers a WiFi 5.8G frequency band.
2. The antenna structure according to claim 1, further comprising:
and at least part of the second radiation branch is opposite to the first sub-radiation branch.
3. The antenna structure according to claim 1, further comprising:
a third radiation branch, at least part of the third radiation branch is arranged opposite to the second sub-radiation branch; the third radiation branch node is provided with a second feed point, and the second feed point is electrically connected with a second feed source;
wherein the second feed comprises at least one of:
n41 frequency band signal, N78 frequency band signal, N79 frequency band signal.
4. The antenna structure according to claim 1,
under the condition that the equivalent capacitance of the first circuit is within a first capacitance range, the modal electrical length of the second sub-radiation branch node is loaded below an N41 frequency band;
under the condition that the equivalent inductance of the first circuit is within a first inductance range, the modal electrical length of the second sub-radiating branch is loaded below the N41 frequency band;
under the condition that the first circuit and the first radiation branch are equivalent to a resonant circuit, loading the resonant frequency band of the resonant circuit to a target frequency band;
the target frequency band is a frequency band outside a WiFi 5.1G frequency band and a WiFi 5.8G frequency band.
5. The antenna structure of claim 4, wherein in a case where the equivalent inductance of the first circuit is within a first inductance range, the antenna structure further comprises:
and one end of the high-pass filter circuit is electrically connected with the first feed point, and the other end of the high-pass filter circuit is electrically connected with the first feed source.
6. The antenna structure according to claim 4, characterized in that in case the first circuit and the first radiating stub are equivalent to a resonant circuit, the first circuit is equivalent to a narrow band pass filter.
7. The antenna structure according to claim 1, further comprising:
one end of the second circuit is electrically connected with the first end of the first radiation branch knot, and the other end of the second circuit is grounded;
the first sub-radiation branch and the second circuit generate a third antenna mode, and the third antenna mode covers a WiFi 5.1G frequency band;
the second sub-radiation branch and the first circuit generate a fourth antenna mode, and the fourth antenna mode covers a WiFi 5.8G frequency band.
8. The antenna structure according to claim 7,
under the condition that the equivalent capacitance of the second circuit is within a second capacitance range, the modal electrical length of the first sub-radiation branch node is loaded below an N41 frequency band;
under the condition that the equivalent inductance of the second circuit is within a second inductance range, the modal electrical length of the first sub-radiating stub is loaded below the N41 frequency band;
and under the condition that the second circuit and the first sub-radiation branch are equivalent to a resonant circuit, loading the resonant frequency band of the resonant circuit to a target frequency band.
9. The antenna structure according to claim 8, characterized in that the second circuit is equivalent to a narrow band pass filter in case the second circuit and the first sub radiating stub are equivalent to a resonant circuit.
10. An electronic device, characterized in that it comprises an antenna structure according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202121688032.7U CN215184516U (en) | 2021-07-23 | 2021-07-23 | Antenna structure and electronic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121688032.7U CN215184516U (en) | 2021-07-23 | 2021-07-23 | Antenna structure and electronic device |
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| CN215184516U true CN215184516U (en) | 2021-12-14 |
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2021
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