CN110994158B - Antenna assembly and electronic equipment - Google Patents
Antenna assembly and electronic equipment Download PDFInfo
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- CN110994158B CN110994158B CN201911370957.4A CN201911370957A CN110994158B CN 110994158 B CN110994158 B CN 110994158B CN 201911370957 A CN201911370957 A CN 201911370957A CN 110994158 B CN110994158 B CN 110994158B
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
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Abstract
The invention provides an antenna assembly and electronic equipment, wherein the antenna assembly comprises an antenna radiator, a first metal radiation branch node, a feed point and a metal floor, the feed point is electrically connected with the antenna radiator and is close to the first end of the antenna radiator, gaps are formed between the first end of the first metal radiation branch node and the second end of the antenna radiator in the first direction and the second direction, the first end of the first metal radiation branch node and the projection part of the second end of the antenna radiator in the second direction are overlapped, a first groove is further formed in the metal floor, the second end of the first metal radiation branch node is electrically connected with the inner bottom wall of the first groove, and a gap is formed between the second end of the first metal radiation branch node and the inner side wall of the first groove. The antenna assembly provided by the invention has the advantages that the resonant frequency of the antenna radiator is increased, the physical size of the antenna radiator is reduced, and the overall structural strength of the antenna assembly is improved.
Description
Technical Field
The invention relates to the technical field of wireless communication antennas, in particular to an antenna assembly and electronic equipment.
Background
The antenna device is an essential component of the wireless communication device, because of the rapid development of wireless technology, the frequency range required to be covered by the wireless communication device is more and more, the miniaturization of the wireless communication device is also more and more required, and the available space of the antenna in the electronic product is limited, so the design difficulty is increased, and at present, most of the wireless communication devices adopt the tunable antenna technology to increase the coverage frequency range of the antenna.
The existing tunable antenna adjusts the antenna resonant frequency by adjusting the routing length of the antenna itself to increase the resonant frequency, or by adding a tuning unit between the antenna and a motherboard, wherein the tuning unit includes a tuning switch and a plurality of series and/or parallel tuning circuits, each tuning circuit is provided with lumped elements with different inductance values, and different tuning circuits are turned on by the tuning switch to realize impedance matched with each resonant frequency of the antenna, thereby completing the tunable range of the antenna.
However, the more resonant frequencies to be covered by the existing tunable antenna, the longer the length of the antenna, the lower the structural strength of the antenna in the limited space of the electronic product, or the greater the loss of the lumped element in the tuning unit, which results in the reduction of the radiation performance of the antenna.
Disclosure of Invention
The invention provides an antenna assembly and electronic equipment, which can effectively increase the resonant frequency of an antenna radiator, reduce the physical size of the antenna radiator and improve the overall structural strength and radiation performance of the antenna assembly.
In order to achieve the above object, in a first aspect, the present invention provides an antenna assembly including an antenna radiator, a first metal radiation branch, and a metal ground;
the metal floor is provided with a feed point, the feed point is electrically connected with the antenna radiator and is close to the first end of the antenna radiator;
the first end of the first metal radiation branch is close to the second end of the antenna radiator, gaps are formed between the first end of the first metal radiation branch and the second end of the antenna radiator in a first direction and a second direction, the first direction is the extending direction of the antenna radiator, the second direction is perpendicular to the first direction, and the projection part of the first end of the first metal radiation branch and the projection part of the second end of the antenna radiator in the second direction are overlapped;
the metal floor is further provided with a first groove, the second end of the first metal radiation branch is electrically connected with the inner bottom wall of the first groove, and a gap is formed between the second end of the first metal radiation branch and the inner side wall of the first groove.
As an alternative, the present invention provides an antenna assembly, wherein the second end of the first metal radiating branch has an extension portion, the extension portion is in electrical contact with the inner bottom wall of the first groove, and a gap is formed between the extension portion and the inner side wall of the first groove.
As an alternative mode, in the antenna assembly provided by the present invention, the first groove is disposed near an outer edge of the metal floor, and a metal floor radiation stub is formed between the outer edge of the metal floor and an inner side wall of the first groove, and a second end of the first metal radiation stub is electrically contacted with one end of the metal floor radiation stub, so that the second end of the first metal radiation stub is electrically connected with an inner bottom wall of the first groove through the metal floor radiation stub.
As an optional mode, in the antenna assembly provided by the present invention, the first groove has an L-shaped or U-shaped structure.
As an optional mode, the antenna assembly provided by the present invention further includes a feed connector, and both ends of the feed connector are electrically connected to the antenna radiator and the feed point, respectively.
As an optional mode, in the antenna assembly provided by the present invention, a first end of the first metal radiation branch is provided with a first protruding portion, one end of the first protruding portion is connected to the first end of the first metal radiation branch and forms an included angle, the other end of the first protruding portion is provided with a second extending portion, the second extending portion extends toward the antenna radiator, an included angle is formed between the first extending portion and the second extending portion to form an accommodating space with an opening facing the antenna radiator, a second end of the antenna radiator extends into the accommodating space, gaps are formed between the second extending portion and the second end of the antenna radiator in both the first direction and the second direction, and a projection portion of the second extending portion and a projection portion of the antenna radiator in the second direction coincide.
As an optional mode, in the antenna assembly provided by the present invention, the first end of the first metal radiation branch is provided with a third protruding portion protruding toward the antenna radiator, the second end of the antenna radiator is provided with a fourth protruding portion protruding toward the metal radiation branch, the third protruding portion and the fourth protruding portion have a gap in both the first direction and the second direction, and projection portions of the third protruding portion and the fourth protruding portion in the second direction are overlapped.
As an optional mode, in the antenna assembly provided by the present invention, the first end of the first metal radiation branch has a first receiving groove having an opening facing the antenna radiator, the second end of the antenna radiator has a fifth protruding portion protruding toward the first metal radiation branch, and the fifth protruding portion protrudes into the first receiving groove and has a gap with both the inner bottom wall and the side wall of the first receiving groove;
or, the second end of the antenna radiator body is provided with a second accommodating groove with an opening facing the first metal radiation branch, the first end of the first metal radiation branch is provided with a sixth extending part extending out towards the antenna radiator body, and the sixth extending part extends into the second accommodating groove and has a gap with the inner bottom wall and the side wall of the second accommodating groove.
As an optional mode, the antenna assembly provided by the present invention further includes a second metal radiation branch, a first end of the second metal radiation branch is close to the first end of the antenna radiator, a gap is formed between the first end of the second metal radiation branch and the first end of the antenna radiator in the first direction and the second direction, and a projection of the first end of the second metal radiation branch and the first end of the antenna radiator in the second direction partially coincides;
the metal floor is further provided with a second groove, the second end of the second metal radiation branch is electrically connected with the inner bottom wall of the second groove, and a gap is formed between the second end of the second metal radiation branch and the inner side wall of the second groove.
In a second aspect, the present invention further provides an electronic device, including a metal frame and any one of the antenna assemblies described above, where the antenna assembly includes a metal floor, the metal frame is disposed around the metal floor, and a portion of the metal frame is used as an antenna radiator.
The antenna component comprises an antenna radiator, a first metal radiation branch node, a feed point and a metal floor, wherein the feed point is electrically connected with the antenna radiator and is close to the first end of the antenna radiator, the first end of the first metal radiation branch node is close to the second end of the antenna radiator, gaps are respectively arranged between the first end of the first metal radiation branch node and the second end of the antenna radiator in a first direction and a second direction, the first direction is the extending direction of the antenna radiator, the second direction is perpendicular to the first direction, the first end of the first metal radiation branch is superposed with the projection part of the second end of the antenna radiator in the second direction, a first groove is also arranged on the metal floor, the second end of the first metal radiation branch is electrically connected with the inner bottom wall of the first groove, and a gap is formed between the second end of the first metal radiation branch and the inner side wall of the first groove. The resonant frequency of the antenna radiator can be effectively increased, the physical size of the antenna radiator is reduced, and the overall structural strength and radiation performance of the antenna assembly are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a first configuration of an antenna assembly provided by an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a front view of a second configuration of an antenna assembly provided by an embodiment of the present invention;
FIG. 4 is a top view of FIG. 3;
fig. 5 is a front view of a third configuration of an antenna assembly provided by an embodiment of the present invention;
FIG. 6 is a top view of FIG. 5;
fig. 7 is a front view of a fourth configuration of an antenna assembly provided by an embodiment of the present invention;
FIG. 8 is a top view of FIG. 7;
fig. 9 is a schematic view of an overall structure of an antenna assembly according to an embodiment of the present invention;
fig. 10 is a schematic diagram of a resonant frequency of an antenna assembly according to an embodiment of the present invention.
Description of reference numerals:
10-an antenna radiator;
101-a fourth extension;
102-a fifth extension;
103-a second accommodating groove;
20-a first metal radiating branch;
201-a first extension;
202-a second extension;
203-an accommodation space;
204-a third extension;
205-a first receiving tank;
206-a sixth extension;
30-metal floor;
301-a first groove;
302-a second groove;
40-a feed connection;
50-second metal radiating branches.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it should be noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, an indirect connection through intervening media, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, "a plurality" means two or more unless specifically stated otherwise.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example one
Fig. 1 is a front view of a first configuration of an antenna assembly provided by an embodiment of the present invention; FIG. 2 is a top view of FIG. 1; fig. 3 is a front view of a second configuration of an antenna assembly provided by an embodiment of the present invention; FIG. 4 is a top view of FIG. 3; fig. 5 is a front view of a third configuration of an antenna assembly provided by an embodiment of the present invention; FIG. 6 is a top view of FIG. 5; fig. 7 is a front view of a fourth configuration of an antenna assembly provided by an embodiment of the present invention; FIG. 8 is a top view of FIG. 7; fig. 9 is a schematic view of an overall structure of an antenna assembly according to an embodiment of the present invention; fig. 10 is a schematic diagram of a resonant frequency of an antenna assembly according to an embodiment of the present invention.
Referring to fig. 1 to 10, an embodiment of the present invention provides an antenna assembly including an antenna radiator 10, a first metal radiation branch 20, a feed point, and a metal floor 30;
the feeding point is electrically connected with the antenna radiator 10 and is close to the first end of the antenna radiator 10;
the first end of the first metal radiation branch 20 is close to the second end of the antenna radiator 10, gaps are formed between the first end of the first metal radiation branch 20 and the second end of the antenna radiator 10 in a first direction and a second direction, the first direction is the extending direction of the antenna radiator 10, the second direction is perpendicular to the first direction, and the projection parts of the first end of the first metal radiation branch 20 and the second end of the antenna radiator 10 in the second direction are overlapped;
the metal floor 30 is further provided with a first groove 301, the second end of the first metal radiating branch 20 is electrically connected with the inner bottom wall of the first groove 301, and a gap is formed between the second end of the first metal radiating branch 20 and the inner side wall of the first groove 301.
Generally, a feeding point and a feeding source (not shown) electrically connected to the feeding point are disposed on the circuit board, and the feeding source feeds a high-frequency current to the antenna radiator 10 through the feeding point, wherein the feeding source may be a radio frequency module disposed on the circuit board, the radio frequency module is electrically connected to the feeding point through the feeding line, a feeding point is further disposed on the circuit board, and the antenna radiator 10 is grounded through the feeding point.
In this embodiment, by providing the first metal radiation branch 20, the first end of the first metal radiation branch 20 is disposed close to the second end of the antenna radiator 10, and the first end of the first metal radiation branch 20 is not connected to the second end of the antenna radiator 10, that is, the first end of the first metal radiation branch 20 and the second end of the antenna radiator 10 have a gap in both the first direction and the second direction, wherein the first direction is an extending direction of the antenna radiator 10, the second direction is perpendicular to the first direction, and a projection of the first end of the first metal radiation branch 20 and a projection of the second end of the antenna radiator 10 in the second direction are overlapped, that is, a partial overlapping surface exists between the first end of the first metal radiation branch 20 and the second end of the antenna radiator 10, so that a partial overlapping surface formed between the first end of the first metal radiation branch 20 and the second end of the antenna radiator 10 is equivalent to a capacitor, the function of loading the capacitor at the second end of the antenna radiator 10 is achieved, so that the resonant frequency of the antenna radiator 10 is increased, the physical size of the antenna radiator 10 is reduced, and the radiation performance of the antenna radiator 10 is improved.
As shown in fig. 10, the first metal radiation branch 20 may be arranged to generate more resonant frequencies, or may be arranged to generate lower frequencies for the antenna radiator 10, for example, the resonance at 1 point in fig. 10 is mainly generated by the antenna radiator 10, and the resonance at 2 points in fig. 10 is mainly generated by the metal radiation branch, so that the frequency band covered by the antenna radiator 10 may be wider by arranging the first metal radiation branch 20.
Further, a first groove 301 may be further disposed on the metal floor 30, and the second end of the first metal radiation branch 20 is electrically connected to the inner bottom wall of the first groove 301, and a gap is formed between the second end of the first metal radiation branch 20 and the inner side wall of the first groove 301, so that, firstly, the second end of the first metal radiation branch 20 is directly grounded, which may realize a top loading effect on the antenna radiator 10 and play a role in adjusting the resonant frequency; secondly, by adjusting the depth of the second groove 302, the length of the first metal radiating branch 20 is changed correspondingly with the depth of the second groove 302, so as to generate the effect of coupling a parasitic antenna and satisfy the resonant frequency required by the antenna radiator 10. Taking a mobile phone as an example, the metal floor 30 may be a metal middle plate in the mobile phone.
It should be noted that the antenna radiator 10 and the first metal radiation branch 20 may be made of copper, gold, aluminum, or aluminum alloy, or other metal materials with good conductivity.
Optionally, the second end of the first metal radiating branch 20 has an extension portion, the extension portion is in electrical contact with the inner bottom wall of the first groove 301, and a gap is formed between the extension portion and the inner side wall of the first groove 301.
Specifically, the first metal radiating branch 20 and the extension portion may be integrally formed or separately formed, and the second end of the first metal radiating branch 20 and one end of the extension portion are connected into a whole and conducted through welding, clamping and the like, and the other end of the extension portion is in electrical contact with the inner bottom wall of the first groove 301, so that a gap is formed between the extension portion and the inner side wall of the first groove 301, thereby satisfying the resonant frequency required by the antenna radiator 10.
Optionally, the first groove 301 is disposed near an outer edge of the metal floor 30, a radiation branch of the metal floor 30 is formed between the outer edge of the metal floor 30 and an inner side wall of the first groove 301, and a second end of the first metal radiation branch 20 is electrically connected to one end of the radiation branch of the metal floor 30, so that the second end of the first metal radiation branch 20 is electrically connected to an inner bottom wall of the first groove 301 through the radiation branch of the metal floor 30.
Specifically, the first groove 301 may be disposed near an outer edge of the metal floor 30, so that a radiation branch of the metal floor 30 is formed between the outer edge of the metal floor 30 and an inner side wall of the first groove 301, and the second end of the first metal radiation branch 20 is electrically connected to one end of the radiation branch of the metal floor 30, so that the radiation branch of the metal floor 30 is equivalent to an extension of the second end of the first metal radiation branch 20, thereby extending the length of the second end of the first metal radiation branch 20, and the second end of the first metal radiation branch 20 is electrically connected to the inner bottom wall of the first groove 301 through the radiation branch of the metal floor 30, so as to satisfy a resonant frequency required by the antenna radiator 10.
Optionally, the first groove 301 has an L-shaped or U-shaped structure.
As an achievable way, the first groove 301 may be disposed at a corner of the metal floor 30 close to the first metal radiation branch 20, and in order to prevent the antenna radiator 10 and the first metal radiation branch 20 from occupying too much space, an opening of the first groove 301 may be directed toward the first metal radiation branch 20, where the first groove 301 may be L-shaped, and a second end of the first metal radiation branch 20 is electrically connected to an inner bottom wall of the first groove 301, and a second end of the first metal radiation branch 20 and the L-shaped groove together form a U-shaped groove, so that space is saved, a resonant frequency of the antenna radiator 10 is satisfied, and meanwhile, a structural strength of the antenna assembly is also improved.
As another way to realize this, the first groove 301 may also be a U-shaped groove with an opening facing the first metal radiating branch 20, and the second end of the first metal radiating branch 20 is directly electrically connected to the inner bottom wall of the U-shaped groove, so as to satisfy the resonant frequency required by the antenna radiator 10. Of course, the first groove 301 may also be in a regular shape or an irregular shape such as an ellipse, and the opening of the first groove 301 may also face other directions, which is not limited in this embodiment.
Optionally, a feed connector 40 is further included, and two ends of the feed connector 40 are electrically connected to the antenna radiator 10 and the feed point, respectively.
Specifically, the feed connector 40 may be made of a conductive material such as copper, gold, aluminum, or an aluminum alloy, such that one end of the feed connector 40 is electrically connected to the antenna radiator 10, and the other end of the feed connector 40 is electrically connected to the feed point on the metal floor 30, and by providing the feed connector 40, the reliability of the electrical connection between the antenna radiator 10 and the feed point is improved.
Optionally, a first end of the first metal radiation branch 20 is provided with a first protruding portion 201, one end of the first protruding portion 201 is connected with the first end of the first metal radiation branch 20 and forms an included angle, the other end of the first protruding portion 201 is provided with a second protruding portion 202, the second protruding portion 202 extends towards the antenna radiator 10, the first protruding portion 201 and the second protruding portion 202 form an accommodating space 203 with an opening facing the antenna radiator 10, a second end of the antenna radiator 10 extends into the accommodating space 203, gaps are formed between the second protruding portion 202 and the second end of the antenna radiator 10 in the first direction and the second direction, and projection portions of the second protruding portion 202 and the antenna radiator 10 in the second direction are overlapped.
Specifically, in order to increase the resonant frequency of the antenna radiator 10, the overlapping area between the second end of the antenna radiator 10 and the first end of the first metal radiation branch 20 may be increased, so that the more energy is coupled to the first metal radiation branch 20 by the antenna radiator 10, and therefore, the first protruding portion 201 may be disposed at the first end of the first metal radiation branch 20, and an included angle may be formed between the first protruding portion 201 and the first metal radiation branch 20, for example, a right angle may be formed between one end of the first protruding portion 201 and the first end of the first metal radiation branch 20. Meanwhile, the second protruding portion 202 is disposed at the other end of the first protruding portion 201, and the second protruding portion 202 extends toward the antenna radiator 10, so that an included angle is formed between the first protruding portion 201 and the second protruding portion 202, that is, the first protruding portion 201 and the second protruding portion 202 form an accommodating space 203 with an opening facing the antenna radiator 10, the second end of the antenna radiator 10 extends into the accommodating space 203, gaps are formed between the second protruding portion 202 and the second end of the antenna radiator 10 in the first direction and the second direction, and the second protruding portion 202 and the projection of the antenna radiator 10 in the second direction are overlapped to form an overlapping surface, so that the resonant frequency of the antenna radiator 10 is satisfied and the space is saved. The first extending portion 201, the second extending portion 202 and the first metal radiation branch section 20 may be integrally formed, or may be formed by processing respectively, and are connected by welding, clamping or hooking, which is not limited in this embodiment.
Alternatively, the first extension 201 and the second extension 202 may be disposed at the second end of the antenna radiator 10, so that the overlapping surface is formed between the first end of the first metal radiation branch 20 and the second extension 202, thereby satisfying the resonant frequency of the antenna radiator 10.
Optionally, the first end of the first metal radiation branch 20 is provided with a third protruding portion 204 protruding toward the antenna radiator 10, the second end of the antenna radiator 10 is provided with a fourth protruding portion 101 protruding toward the metal radiation branch, gaps are formed between the third protruding portion 204 and the fourth protruding portion 101 in the first direction and the second direction, and projection portions of the third protruding portion 204 and the fourth protruding portion 101 in the second direction are overlapped.
Specifically, the outer edge of the third protrusion 204 may be flush with the outer edge of the first metal radiation branch 20, and the outer edge of the fourth protrusion 101 may be flush with the outer edge of the antenna radiator 10, so that the resonant frequency of the antenna radiator 10 is satisfied, and the space is further saved.
Optionally, the first end of the first metal radiation branch 20 has a first receiving groove 205 with an opening facing the antenna radiator 10, the second end of the antenna radiator 10 is provided with a fifth protruding portion 102 protruding toward the first metal radiation branch 20, the fifth protruding portion 102 protrudes into the first receiving groove 205, and a gap is formed between the fifth protruding portion 102 and the inner bottom wall and the side wall of the first receiving groove 205;
or, the second end of the antenna radiator 10 has the second receiving groove 103 with an opening facing the first metal radiating branch 20, the first end of the first metal radiating branch 20 is provided with a sixth protruding portion 206 protruding toward the antenna radiator 10, and the sixth protruding portion 206 protrudes into the second receiving groove 103 and has a gap with the inner bottom wall and the side wall of the second receiving groove 103.
Specifically, in order to increase the overlapping area between the second end of the antenna radiator 10 and the first metal radiation and improve the effect of loading the capacitor on the second end of the antenna radiator 10, the first end of the first metal radiation branch 20 may be provided with a first accommodating groove 205 with an opening facing the antenna radiator 10, so that the fifth protruding portion 102 protruding from the second end of the antenna radiator 10 extends into the first accommodating groove 205, or the second end of the antenna radiator 10 is provided with a second accommodating groove 103 with an opening facing the first metal radiation branch 20, so that the sixth protruding portion 206 protruding from the first end of the first metal radiation branch 20 extends into the second accommodating groove 103. In this way, the fifth protruding portion 102 and the side wall of the first receiving groove 205 or the sixth protruding portion 206 and the side wall of the second receiving groove 103 have overlapping surfaces, so that the energy coupling of the antenna radiator 10 to the first metal radiating branch 20 is increased, the resonant frequency of the antenna radiator 10 is increased, and the frequency band covered by the antenna radiator 10 is wider.
Optionally, the antenna further includes a second metal radiation branch 50, a first end of the second metal radiation branch 50 is close to the first end of the antenna radiator 10, a gap is formed between the first end of the second metal radiation branch 50 and the first end of the antenna radiator 10 in the first direction and the second direction, and a projection of the first end of the second metal radiation branch 50 and the first end of the antenna radiator 10 in the second direction partially coincides;
the metal floor 30 is further provided with a second groove 302, the second end of the second metal radiating branch 50 is electrically connected with the inner bottom wall of the second groove 302, and a gap is formed between the second end of the second metal radiating branch 50 and the inner side wall of the second groove 302.
In addition to the above embodiments, the second metal radiating branch 50 may be disposed at the first end of the antenna radiator 10, such that the first end of the second metal radiating branch 50 is disposed near the first end of the antenna radiator 10, and the first end of the second metal radiating branch 50 is not connected to the first end of the antenna radiator 10, i.e. the first end of the second metal radiating branch 50 has a gap in the first and second directions with the first end of the antenna radiator 10, and the first end of the second metal radiating branch 50 and the first end of the antenna radiator 10 are partially overlapped in the projection in the second direction, the overlapping surface formed between the first end of the second metal radiating branch 50 and the first end of the antenna radiator 10 may have an effect of loading a capacitor at the first end of the antenna radiator 10, so that the resonance frequency of the antenna radiating element can be adjusted and the coupling of the antenna radiator 10 to the second metal radiating branch 50 can be increased.
Further, by arranging the second groove 302 on the metal floor 30, the second end of the second metal radiation branch 50 is electrically connected to the inner bottom wall of the second groove 302, and a gap is formed between the second end of the second metal radiation branch 50 and the inner side wall of the second groove 302, so that the length of the second metal radiation branch 50 can be effectively increased, the resonant frequency of the antenna radiator 10 is increased, and the top loading effect can be realized on the antenna radiator 10 by directly grounding the second end of the second metal radiation branch 50, thereby playing a role in adjusting the resonant frequency.
Example two
The embodiment of the invention also provides electronic equipment which comprises the metal frame and any one of the antenna assemblies, wherein the antenna assembly comprises a metal floor, the metal frame is arranged around the metal floor in a surrounding mode, and part of the metal frame is used as an antenna radiator.
The structure and the working principle of the antenna assembly have been described in detail in the above embodiments, and are not described in detail herein.
The electronic device provided by the embodiment of the invention comprises an antenna component, wherein the antenna component comprises an antenna radiator, a first metal radiation branch node, a feed point and a metal floor, the feed point is electrically connected with the antenna radiator and is close to the first end of the antenna radiator, the first end of the first metal radiation branch node is close to the second end of the antenna radiator, a gap is formed between the first end of the first metal radiation branch node and the second end of the antenna radiator in a first direction and a second direction, the first direction is the extending direction of the antenna radiator, the second direction is perpendicular to the first direction, the first end of the first metal radiation branch is superposed with the projection part of the second end of the antenna radiator in the second direction, a first groove is also arranged on the metal floor, the second end of the first metal radiation branch is electrically connected with the inner bottom wall of the first groove, and a gap is formed between the second end of the first metal radiation branch and the inner side wall of the first groove. Through setting up first metal radiation minor matters, can effectual increase antenna radiating body's resonant frequency, reduce antenna radiating body's physical dimension, improve the holistic structural strength of antenna module.
In the description herein, references to the description of "one embodiment," "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. An antenna assembly, comprising an antenna radiator, a first metal radiation branch, a feed point, a metal floor and a feed connector;
the feeding point is electrically connected with the antenna radiator and is close to the first end of the antenna radiator;
the first end of the first metal radiation branch is close to the second end of the antenna radiator, gaps are formed between the first end of the first metal radiation branch and the second end of the antenna radiator in a first direction and a second direction, the first direction is the extending direction of the antenna radiator, the second direction is perpendicular to the first direction, and the projection parts of the first end of the first metal radiation branch and the second end of the antenna radiator in the second direction are overlapped;
a first groove is formed in the metal floor, the second end of the first metal radiation branch is electrically connected with the inner bottom wall of the first groove, and a gap is formed between the second end of the first metal radiation branch and the inner side wall of the first groove;
two ends of the feed connecting piece are respectively and electrically connected with the antenna radiator and the feed point;
the first end of the first metal radiation branch is provided with a first accommodating groove with an opening facing the antenna radiator, the second end of the antenna radiator is provided with a fifth extending part extending towards the first metal radiation branch, and the fifth extending part extends into the first accommodating groove and has a gap with the inner bottom wall and the side wall of the first accommodating groove;
or, the second end of antenna radiation body has the opening orientation the second holding tank of first metal radiation branch, the first end of first metal radiation branch is equipped with the orientation the sixth extension that antenna radiation body stretches out, the sixth extension stretch into in the second holding tank and with all there is the clearance between the interior diapire and the lateral wall of second holding tank.
2. The antenna assembly of claim 1, wherein the second end of the first metal radiating stub has an extension in electrical contact with an inner bottom wall of the first groove, the extension forming a gap with an inner side wall of the first groove.
3. The antenna assembly of claim 1, wherein the first groove is disposed near an outer edge of the metal ground plate, and a metal ground radiation stub is formed between the outer edge of the metal ground plate and an inner side wall of the first groove, and a second end of the first metal radiation stub is in electrical contact with one end of the metal ground radiation stub, so that the second end of the first metal radiation stub is electrically connected with an inner bottom wall of the first groove through the metal ground radiation stub.
4. The antenna assembly of any one of claims 1-3, wherein the first groove is an L-shaped or U-shaped structure.
5. The antenna assembly of any one of claims 1-3, wherein a first end of the first metal radiating stub is provided with a first protrusion, one end of the first protrusion is connected to the first end of the first metal radiating stub and forms an included angle, the other end of the first protrusion is provided with a second protrusion, the second protrusion extends toward the antenna radiator, the first protrusion and the second protrusion form an accommodating space that opens toward the antenna radiator, a second end of the antenna radiator extends into the accommodating space, the second protrusion has a gap with a second end of the antenna radiator in both the first direction and the second direction, and a projection of the second protrusion and the antenna radiator in the second direction coincides.
6. The antenna assembly according to any one of claims 1-3, characterized in that the first end of the first metal radiation branch is provided with a third extension projecting towards the antenna radiator, the second end of the antenna radiator is provided with a fourth extension projecting towards the metal radiation branch, the third and fourth extensions having a gap in both the first and second directions, and the projections of the third and fourth extensions in the second direction coincide.
7. The antenna assembly of any one of claims 1-3, further comprising a second metal radiating branch, a first end of the second metal radiating branch being proximate to the first end of the antenna radiator, the first end of the second metal radiating branch having a gap with the first end of the antenna radiator in the first direction and the second direction, and a projection of the first end of the second metal radiating branch and the first end of the antenna radiator in the second direction coinciding;
the metal floor is further provided with a second groove, the second end of the second metal radiation branch is electrically connected with the inner bottom wall of the second groove, and a gap is formed between the second end of the second metal radiation branch and the inner side wall of the second groove.
8. An electronic device, comprising a metal bezel and the antenna assembly of any of claims 1-7, wherein the antenna assembly comprises a metal ground plane, wherein the metal bezel surrounds a perimeter of the metal ground plane, and wherein a portion of the metal bezel is configured as the antenna radiator.
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| CN113540752B (en) * | 2020-04-21 | 2024-03-01 | 北京小米移动软件有限公司 | Terminal equipment |
| CN113972497B (en) * | 2020-07-22 | 2023-02-10 | 华为技术有限公司 | Electronic device |
| CN111969305B (en) * | 2020-09-28 | 2022-12-09 | 西安电子科技大学 | Antenna module and communication equipment |
| CN116918178A (en) * | 2022-01-25 | 2023-10-20 | 华为技术有限公司 | Feed antenna and electronic device |
| CN217544919U (en) * | 2022-04-18 | 2022-10-04 | Oppo广东移动通信有限公司 | Antenna assembly and wearable equipment |
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