CN111029729A - Antenna assembly and electronic equipment - Google Patents
Antenna assembly and electronic equipment Download PDFInfo
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- CN111029729A CN111029729A CN201911347521.3A CN201911347521A CN111029729A CN 111029729 A CN111029729 A CN 111029729A CN 201911347521 A CN201911347521 A CN 201911347521A CN 111029729 A CN111029729 A CN 111029729A
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- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
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- 238000010586 diagram Methods 0.000 description 12
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- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
-
- 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
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention provides an antenna assembly and electronic equipment, wherein the antenna assembly comprises an antenna radiator, a metal radiation branch, a tuning unit and a feed point, the antenna radiator is electrically connected with the feed point, two ends of the metal radiation branch are respectively and electrically connected with one end of the tuning unit and the feed point, and the other end of the tuning unit is grounded. According to the antenna assembly provided by the invention, the metal radiation branch section is arranged and can be equivalent to an inductor, so that the capacitor or the inductor with a small resistance value can be selected when the capacitor or the inductor in the lumped element is selected, the resistance value of the lumped element is reduced, the loss in the tuning unit is reduced, the radiation performance of the antenna is improved, the annular antenna is formed by the metal radiation branch section, the antenna radiator and the tuning unit, more resonant frequencies can be excited, a certain top loading effect can be generated on the antenna radiator, and the effect of adjusting resonance is achieved.
Description
Technical Field
The invention relates to the technical field of wireless communication antennas, in particular to an antenna assembly and electronic equipment.
Background
With the continuous increase of frequency bands of electronic devices such as smart phones, the problems of excessive number and large size of internal radio frequency antennas are caused, and how to reduce the number and size of antennas and provide signal receiving performance and bandwidth is a problem in the field of wireless communication.
The existing tunable antenna is to connect a tuning unit between an antenna radiator and a feed point or a feed point, wherein the tuning unit includes a tuning circuit and a tuning switch, each tuning circuit is usually provided with lumped elements with different inductance values, and different tuning circuits are switched by the tuning switch to realize different matching impedances, thereby completing the tunable range of the antenna.
However, the larger the inductance value of the lumped element in such a tuning circuit, the larger the resistance of the lumped element, and the larger the resistance, the larger the loss of the lumped element, thereby causing the radiation performance of the antenna to be degraded during the tuning process.
Disclosure of Invention
The invention provides an antenna assembly and an electronic device, which can reduce the resistance of a tuning unit in the using process, thereby improving the radiation performance of the antenna.
To achieve the above object, a first aspect of the present invention provides an antenna assembly comprising: the antenna comprises an antenna radiator, a metal radiation branch, a tuning unit and a feed point;
the antenna radiator is electrically connected with the feed point;
two ends of the metal radiation branch are respectively and electrically connected with one end of the tuning unit and the feed point, and the other end of the tuning unit is grounded.
As an alternative, the present invention provides an antenna assembly, wherein the tuning unit includes at least two tuning circuits connected in parallel, one end of each tuning circuit connected in parallel is electrically connected to the metal radiating branch, and the other end of each tuning circuit connected in parallel is grounded.
As an alternative, the present invention provides an antenna assembly, wherein the tuning circuit comprises a tuning switch and at least one lumped element, one end of the lumped element is grounded, the other end of the lumped element is connected to one end of the tuning switch, and the other end of the tuning switch is electrically connected to the metal radiating branch.
As an alternative, the present invention provides an antenna assembly in which the resistance of the metal radiating branches is smaller than the resistance of lumped elements in the tuning unit.
As an optional mode, in the antenna assembly provided by the present invention, the lumped element is a capacitor with an adjustable capacitance value or an inductor with an adjustable inductance value, or the lumped element is a capacitor with a fixed capacitance value or an inductor with a fixed inductance value.
As an optional mode, the antenna assembly provided by the present invention further includes a capacitor, one end of the capacitor is electrically connected to the antenna radiator, and the other end of the capacitor is grounded.
As an optional mode, the working frequency band of the antenna radiator of the antenna assembly provided by the invention is 617-960 MHz; the working frequency range of the metal radiation branch is 1710-2170 MHz and 2300-2700 MHz;
or the working frequency band of the antenna radiator is 617-960 MHz and 1710-2170 MHz; the working frequency band of the metal radiation branch knot is 2300-2700 MHz;
or the working frequency band of the antenna radiator is 617-960 MHz and 2300-2700 MHz; the working frequency range of the metal radiation branch is 1710-2170 MHz.
As an optional mode, the antenna assembly provided by the present invention, the metal radiation branch and the antenna radiator are made of copper, gold, aluminum or an aluminum alloy.
In a second aspect, the present invention further provides an electronic device, including a circuit board and at least one antenna assembly as described above, where the circuit board is provided with a feeding point and a feeding source electrically connected to the feeding point, and the feeding source feeds a high-frequency current to the antenna assembly through the feeding point.
As an optional mode, in the electronic device provided by the present invention, the antenna assembly is a multi-frequency antenna, and the operating frequency band of the multi-frequency antenna is at least two of a low frequency band, an intermediate frequency band, and a high frequency band.
The antenna assembly comprises an antenna radiator, a metal radiation branch, a tuning unit and a feed point, wherein the antenna radiator is electrically connected with the feed point, two ends of the metal radiation branch are respectively electrically connected with one end of the tuning unit and the feed point, and the other end of the tuning unit is grounded. Through setting up the metal radiation minor matters, this metal radiation minor matters can be equivalent to the inductance, like this, the electric capacity or the inductance of resistance value decimal can be selected to electric capacity or inductance in the lumped element when selecting, thereby make the resistance value of lumped element reduce, then loss among the tuning unit reduces, thereby make the radiation performance of antenna promote, and through the metal radiation minor matters, antenna radiator and tuning unit form loop antenna, can stimulate out more resonant frequency, can also produce certain top loading effect to the antenna radiator, thereby play the effect of adjustment resonance.
The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.
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 first structural schematic diagram of an antenna assembly according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a second structure of an antenna assembly according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a current path of an antenna assembly according to an embodiment of the present invention;
FIG. 4 is a first schematic diagram of a resonant frequency of an antenna assembly provided by an embodiment of the present invention;
FIG. 5 is a second schematic diagram of a resonant frequency of an antenna assembly provided by an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Description of reference numerals:
10-an antenna assembly;
101-an antenna radiator;
102-metal radiating branches;
103-a tuning unit;
104-a feeding point;
105-capacitance;
20-circuit board.
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.
With the continuous increase of frequency bands of electronic devices such as smart phones, the problems of excessive number and large size of internal radio frequency antennas are caused, and how to reduce the number and size of antennas and provide signal receiving performance and bandwidth is a problem in the field of wireless communication. The existing tunable antenna is to connect a tuning unit between an antenna radiator and a feed point or a feed point, wherein the tuning unit includes a tuning circuit and a tuning switch, each tuning circuit is usually provided with lumped elements with different inductance values, and different tuning circuits are switched by the tuning switch to realize different matching impedances, thereby completing the tunable range of the antenna. However, the larger the inductance value of the lumped element in such a tuning circuit, the larger the loss resistance introduced, and the larger the loss resistance, the lower the radiation performance of the antenna during tuning.
In order to solve the above problems, the present invention provides an antenna assembly and an electronic device, where the antenna assembly includes an antenna radiator, a metal radiation branch, a tuning unit, and a feed point, the antenna radiator is electrically connected to the feed point, two ends of the metal radiation branch are respectively electrically connected to one end of the tuning unit and the feed point, and the other end of the tuning unit is grounded. Through setting up the metal radiation minor matters, this metal radiation minor matters can be equivalent to the inductance, like this, the electric capacity or the inductance of resistance value decimal can be selected to electric capacity or inductance in the lumped element when selecting, thereby make the resistance value of lumped element reduce, then loss among the tuning unit reduces, thereby make the radiation performance of antenna promote, and through the metal radiation minor matters, antenna radiator and tuning unit form loop antenna, can stimulate out more resonant frequency, can also produce certain top loading effect to the antenna radiator, thereby play the effect of adjustment resonance.
Example one
Fig. 1 is a first structural schematic diagram of an antenna assembly according to an embodiment of the present invention; fig. 2 is a schematic diagram of a second structure of an antenna assembly according to an embodiment of the present invention; FIG. 3 is a schematic diagram of a current path of an antenna assembly according to an embodiment of the present invention; FIG. 4 is a first schematic diagram of a resonant frequency of an antenna assembly provided by an embodiment of the present invention; fig. 5 is a second schematic diagram of a resonant frequency of an antenna assembly according to an embodiment of the present invention.
Referring to fig. 1 to 5, an embodiment of the present invention provides an antenna assembly 10, including an antenna radiator 101, a metal radiation branch 102, a tuning unit 103, and a feeding point 104;
the antenna radiator 101 is electrically connected with the feed point 104;
two ends of the metal radiating branch 102 are electrically connected with one end of the tuning unit 103 and the feeding point 104, respectively, and the other end of the tuning unit 103 is grounded.
Specifically, the greater the inductance value, the greater the number of turns of the coil, the greater the resistance introduced, and therefore, in order to avoid an increase in resistance introduced by an increase in inductance value in each tuning circuit in the tuning unit 103, resulting in a reduced radiation performance of the antenna radiator 101 during tuning of the tuning unit 103, in this embodiment, the metal radiation branch 102 is arranged between the antenna radiator 101 and the tuning unit 103, so that the metal radiation branch 102 can be equivalent to an inductor, the metal radiation branch 102 can be arranged as a conductor with a certain length in a rectangular shape or the like, the resistance is small, so that the inductance value in the tuning circuit in the tuning unit 103 can be reduced by the equivalent of the metal radiation branch 102 as an inductor, the resistance of components in the tuning circuit is reduced, thereby reducing the loss of components and further improving the radiation performance of the antenna radiator 101.
The metal radiation branch 102 may be a conductor made of a conductive material such as copper, aluminum, copper-aluminum alloy, etc., and may be a rectangular metal strip, a metal sheet, or a metal radiation branch 102 having a certain length and any other structural shape, which is not limited in this embodiment.
Specifically, a first current path (e.g., a thick solid line with an arrow in fig. 3) may be formed by electrically connecting the antenna radiator 101 and the feeding point 104, wherein a resonant frequency of the first current path may be tuned by the tuning unit 103 and the metal radiation branch 102, and a length of the first current path may be a quarter of a guided wave wavelength of the resonant frequency of the first current path, or may be three quarters of the guided wave wavelength.
Specifically, both ends of the metal radiating branch 102 are electrically connected to one end of the tuning unit 103 and the feeding point 104, respectively, and the other end of the tuning unit 103 is grounded, so as to form a second loop antenna current path (e.g., a dashed path in fig. 3), where the length of the second loop antenna current path is usually one-half of the guided wave wavelength of the resonant frequency corresponding to the second loop antenna current path, and the tuning circuit with different inductance values in the tuning unit 103 is turned on, so that, as shown in fig. 5, the resonant frequency corresponding to the first current path is shifted left and right along with the change of the inductance value, and the resonant frequency corresponding to the second loop antenna current path is also shifted left and right along with the change of the inductance value, so as to excite more resonant frequencies at the location, and thus the communication operating band of the antenna radiator 101 can be.
Furthermore, in the radiation process of the antenna radiator 101, all metal parts attached to the antenna radiator 101 participate in radiation, and therefore, by arranging the metal radiation branch 102 between the antenna radiator 101 and the tuning unit 103, the metal radiation branch 102 can be equivalent to the antenna radiator 101, so that the distance between the antenna radiator 101 and the ground is reduced, a certain top loading effect can be generated on the original antenna radiator 101, and the effect of adjusting resonance is achieved.
The antenna assembly provided by the embodiment of the invention comprises an antenna radiator, a metal radiation branch, a tuning unit and a feed point, wherein the antenna radiator is electrically connected with the feed point, two ends of the metal radiation branch are respectively and electrically connected with one end of the tuning unit and the feed point, and the other end of the tuning unit is grounded. Through setting up the metal radiation minor matters, this metal radiation minor matters can be equivalent to the inductance, like this, the electric capacity or the inductance of resistance value decimal can be selected to electric capacity or inductance in the lumped element when selecting, thereby make the resistance value of lumped element reduce, then loss among the tuning unit reduces, thereby make the radiation performance of antenna promote, and through the metal radiation minor matters, antenna radiator and tuning unit form loop antenna, can stimulate out more resonant frequency, can also produce certain top loading effect to the antenna radiator, thereby play the effect of adjustment resonance.
Optionally, the tuning unit 103 includes at least two parallel tuning circuits, one end of each parallel tuning circuit is electrically connected to the metal radiating branch 102, and the other end of each parallel tuning circuit is grounded.
Specifically, different tuning circuits have different inductance values and different corresponding impedance values matched with the antenna radiator 101, so that the frequency band ranges of the antenna radiators 101 corresponding to the tuning circuits may be different. For example, when the tuning unit 103 includes two tuning circuits connected in parallel, one of the tuning circuits tunes to the low frequency band of the antenna radiator 101, and the other tuning circuit tunes to the high frequency band of the antenna, and the high frequency band and the low frequency band are independent of each other, so that the frequency ranges of the two tuning circuits are different.
Optionally, the tuning circuit includes a tuning switch and at least one lumped element, one end of the lumped element is grounded, the other end of the lumped element is connected to one end of the tuning switch, and the other end of the tuning switch is electrically connected to the metal radiation branch 102.
Specifically, in this embodiment, whether the tuning circuit is open or closed may be realized by opening and closing a tuning switch, where the lumped element may be a capacitor or an inductor, and when the tuning switch is closed, the resonant frequency corresponding to the antenna radiator 101 is tuned according to the matching impedance of the lumped element in the tuning circuit and the antenna radiator 101.
It should be noted that, a capacitor, or an inductor, or multiple capacitors connected in series, or multiple inductors connected in series, or multiple capacitors connected in parallel, or multiple inductors connected in parallel, or at least one capacitor and at least one inductor connected in series, or at least one group of capacitors and inductors connected in series and in parallel may be provided in the tuning circuit, which is not limited in this embodiment.
Optionally, the resistance of metal radiating branch 102 is smaller than the resistance of the lumped element in tuning unit 103.
Specifically, the smaller the resistance in the metal radiation branch 102 and the lumped element is, the smaller the influence on the radiation performance of the antenna radiator 101 is, and therefore, in order to improve the radiation performance of the antenna radiator 101, the metal radiation branch 102 is connected between the antenna radiator 101 and the tuning unit 103, so that the metal radiation branch 102 is equivalent to an inductor, and the resistance of the metal radiation branch 102 is smaller than the resistance of the tuning unit 103, and thus, the influence on the radiation performance of the antenna radiator 101 caused by too large resistance in the tuning unit 103 can be avoided, and the radiation performance of the antenna radiator 101 can be ensured to meet the use requirement of the antenna.
In one embodiment, the lumped element is a capacitor with adjustable capacitance or an inductor with adjustable inductance, or the lumped element is a capacitor with fixed capacitance or an inductor with fixed inductance. In this embodiment, since the metal radiation branch 102 is provided, the metal radiation branch 102 may be equivalent to an inductor, and thus, when a capacitor or an inductor in the lumped element is selected, a capacitor or an inductor with a small resistance value may be selected, so that the resistance value of the lumped element is reduced, the loss of the tuned circuit is reduced, and the radiation efficiency of the system is improved.
In an implementation manner, tuning can be performed for different frequency band ranges of the antenna radiator 101 through the tunable capacitance or the tunable inductance, and the tuning requirements of the antenna radiator 101 for different frequency band ranges can be met under the condition that fewer lumped elements are used.
In another implementation manner, the lumped element may also be a capacitor with a fixed capacitance value or an inductor with a fixed inductance value, and by setting a plurality of inductors with different capacitance values or different inductance values in the tuning circuit, when the antenna radiator 101 needs to be tuned to a required frequency band, different tuning circuits can be connected by closing and opening the tuning switch, so as to meet the tuning requirement of the antenna radiator 101 for the frequency band range.
In some embodiments, a capacitor 105 or an inductor (not shown) is further included, one end of the capacitor 105 or the inductor is electrically connected to the antenna radiator 101, and the other end of the capacitor 105 or the inductor is grounded.
Specifically, in order to further tune the frequency band of the antenna radiator 101, so that the tuning frequency of the antenna radiator 101 is more, one end of the capacitor 105 or the inductor is electrically connected to the antenna radiator 101 by setting the capacitor 105 or the inductor, and the other end of the capacitor 105 or the inductor is grounded, so that the tuning frequency of the antenna radiator 101 is increased, where the capacitor may be a capacitor with an adjustable capacitance value or a capacitor with a fixed capacitance value, and the inductor may be an inductor with an adjustable inductance value or an inductor with a fixed inductance value, which is not limited in this embodiment.
Optionally, the working frequency band of the antenna radiator 101 is 617-960 MHz; the working frequency range of the metal radiation branch 102 is 1710-2170 MHz and 2300-2700 MHz; or the working frequency band of the antenna radiator 101 is 617-960 MHz and 1710-2170 MHz; the working frequency band of the metal radiation branch 102 is 2300-2700 MHz; or the working frequency band of the antenna radiator 101 is 617-960 MHz and 2300-2700 MHz; the working frequency band of the metal radiation branch 102 is 1710-2170 MHz. Wherein, 617 ~ 960MHz is the low frequency, 1710 ~ 2170MHz is the intermediate frequency, 2300 ~ 2700MHz is the high frequency, makes this antenna module can cover three frequency channels of low high, middle high like this, and this antenna module can regard as main antenna, or also can regard as diversity antenna. Certainly, the antenna module that this embodiment provided can also regard as the WIFI antenna of 2.4GHz and the WIFI antenna of 5GHz, or this antenna module can regard as bluetooth antenna and GPS antenna. Alternatively, with the development of 5G technology, the antenna assembly can also be used as a 5G antenna. For example, the antenna radiator 101 is electrically connected to the feeding point 104 and serves as a first current path, a frequency band covered by a resonant frequency corresponding to the first current path is a low frequency (the low frequency may be represented by f 1), two ends of the metal radiating branch 102 are electrically connected to the feeding point 104 and one end of the tuning unit 103 respectively, and the other end of the tuning unit 103 is grounded, so as to serve as a second current path, and a frequency band covered by a resonant frequency corresponding to the second current path is a high frequency (the high frequency may be represented by f 2).
Optionally, the antenna radiator 101 and the metal radiation branch 102 may be made of a conductive metal material, for example, a material such as copper, gold, aluminum, or an aluminum alloy, and certainly, the material of the metal radiation branch 102 may also be made of other conductive metal materials such as stainless steel, as long as the conductivity is good and the resistance is small, wherein the metal radiation branch 102 may be integrally formed by casting, or may be processed by stamping, cutting, and the like, which is not limited in this embodiment.
The antenna assembly provided by the embodiment of the invention comprises an antenna radiator, a metal radiation branch, a tuning unit and a feed point, wherein the antenna radiator is electrically connected with the feed point, two ends of the metal radiation branch 102 are respectively electrically connected with one end of the tuning unit and the feed point, and the other end of the tuning unit is grounded. Through setting up the metal radiation minor matters, this metal radiation minor matters can be equivalent to the inductance, like this, the electric capacity or the inductance of resistance value decimal can be selected to electric capacity or inductance in the lumped element when selecting, thereby make the resistance value of lumped element reduce, then loss among the tuning unit reduces, thereby make the radiation performance of antenna promote, and through the metal radiation minor matters, antenna radiator and tuning unit form loop antenna, can stimulate out more resonant frequency, can also produce certain top loading effect to former radiator antenna, thereby play the effect of adjustment resonance.
Example two
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
As shown in fig. 6, the present invention also provides an electronic device including a circuit board 20 and at least one antenna assembly 10 in the above embodiments, the circuit board 20 is provided with a feeding point 104 and a feeding source (not shown) electrically connected to the feeding point 104, and the feeding source feeds a high-frequency current to the antenna assembly 10 through the feeding point 104. The feed source may be a radio frequency module disposed on the circuit board, and the radio frequency module is electrically connected to the feeding point 104 through a feeding line.
In general, when there are a plurality of antennas in the electronic device, the circuit board 20 is provided with a plurality of feeding points 104, the antenna radiator 101 corresponding to each antenna is electrically connected to the feeding points 104, the feed feeds a high-frequency current to the antenna radiator 101 through the feeding points 104, and the high-frequency current is radiated outward on the antenna radiator 101 through electromagnetic waves, thereby implementing a wireless communication function of the electronic device.
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.
Optionally, the circuit board 20 may be a printed circuit board, and the upper surface of the printed circuit board may have a metal coating or a metal spring, and the circuit board 20 is connected to a component that needs to be electrically connected to the circuit board 20 through the metal coating or the metal spring. A feed point (i.e., a grounding point) is provided on the circuit board 20, and one end of the tuning unit 103 is in contact with the feed point to realize grounding, and the circuit board 20 serves as a reference ground of the antenna assembly and participates in radiation.
In this embodiment, the antenna assembly may be a multi-frequency antenna, and the working frequency bands of the multi-frequency antenna may be at least two of a low frequency band (700 + 960MHz), an intermediate frequency band (1710 + 2200MHz), and a high frequency band (2300 + 2700MHz), for example, the working frequency bands of the multi-frequency antenna may be a low frequency band and a high frequency band, or the working frequency bands of the multi-frequency antenna may be a low frequency band and an intermediate frequency band, or the working frequency bands of the multi-frequency antenna may also be a low frequency band, an intermediate frequency band, and a high frequency band. Of course, in this embodiment, the antenna assembly may also be a single-frequency antenna, for example, the operating frequencies of the antenna radiator 101 and the metal radiation branch 102 are both a high-frequency band or a low-frequency band.
The embodiment of the invention provides electronic equipment, which comprises a circuit board and at least one antenna assembly, wherein the circuit board is provided with a feeding point, and the antenna assembly is electrically connected with the feeding point, wherein the antenna assembly comprises an antenna radiation body, a metal radiation branch, a tuning unit and the feeding point, the antenna radiation body is electrically connected with the feeding point, two ends of the metal radiation branch are respectively and electrically connected with one end of the tuning unit and the feeding point, and the other end of the tuning unit is grounded. Through setting up the metal radiation minor matters, this metal radiation minor matters can be equivalent to the inductance, like this, the electric capacity or the inductance of resistance value decimal can be selected to electric capacity or inductance in the lumped element when selecting, thereby make the resistance value of lumped element reduce, then loss among the tuning unit reduces, thereby make the radiation performance of antenna promote, and through the metal radiation minor matters, antenna radiator and tuning unit form loop antenna, can stimulate out more resonant frequency, can also produce certain top loading effect to former radiator antenna, thereby play the effect of adjustment resonance.
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 (10)
1. An antenna assembly, comprising an antenna radiator, a metal radiation branch, a tuning unit and a feed point;
the antenna radiator is electrically connected with the feed point;
two ends of the metal radiation branch are respectively electrically connected with one end of the tuning unit and the feed point, and the other end of the tuning unit is grounded.
2. The antenna assembly of claim 1, wherein the tuning unit comprises at least two parallel tuning circuits, each parallel tuning circuit having one end electrically connected to the metal radiating stub and another end grounded.
3. The antenna assembly of claim 2, wherein the tuning circuit comprises a tuning switch and at least one lumped element, one end of the lumped element being connected to ground, the other end of the lumped element being connected to one end of the tuning switch, the other end of the tuning switch being electrically connected to the metal radiating stub.
4. An antenna assembly according to claim 3, characterized in that the resistance of the metal radiating stub is smaller than the resistance of the lumped element in the tuning unit.
5. The antenna assembly of claim 3, wherein the lumped element is a capacitance with adjustable capacitance or an inductance with adjustable inductance, or a capacitance with fixed capacitance or an inductance with fixed inductance.
6. The antenna assembly of any one of claims 1-5, further comprising a capacitor or an inductor, one end of the capacitor or the inductor being electrically connected to the antenna radiator, the other end of the capacitor or the inductor being grounded.
7. The antenna assembly according to any one of claims 1-5, characterized in that the operating band of the antenna radiator is 617-960 MHz; the working frequency range of the metal radiation branch is 1710-2170 MHz and 2300-2700 MHz;
or the working frequency band of the antenna radiator is 617-960 MHz and 1710-2170 MHz; the working frequency band of the metal radiation branch knot is 2300-2700 MHz;
or the working frequency band of the antenna radiator is 617-960 MHz and 2300-2700 MHz; the working frequency range of the metal radiation branch is 1710-2170 MHz.
8. The antenna assembly according to any one of claims 1-5, characterized in that the material of the metal radiating stub and the antenna radiator is copper, gold, aluminum or an aluminum alloy.
9. An electronic device, comprising a circuit board and at least one antenna assembly according to any one of claims 1 to 8, wherein the circuit board is provided with a feeding point and a feed source electrically connected to the feeding point, and wherein the feed source feeds a high-frequency current to the antenna assembly through the feeding point.
10. The electronic device of claim 9, wherein the antenna assembly is a multi-frequency antenna having at least two of a low frequency band, a medium frequency band, and a high frequency band.
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| CN201911347521.3A CN111029729A (en) | 2019-12-24 | 2019-12-24 | Antenna assembly and electronic equipment |
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| CN201911347521.3A CN111029729A (en) | 2019-12-24 | 2019-12-24 | Antenna assembly and electronic equipment |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070249313A1 (en) * | 2006-04-19 | 2007-10-25 | Yokowo Co., Ltd. | Multi-band antenna |
| WO2011024280A1 (en) * | 2009-08-27 | 2011-03-03 | 株式会社 東芝 | Antenna device and communication device |
| WO2012169186A1 (en) * | 2011-06-08 | 2012-12-13 | パナソニック株式会社 | Antenna device |
| CN104916921A (en) * | 2015-05-06 | 2015-09-16 | 深圳市万普拉斯科技有限公司 | Wireless communication equipment and antenna device thereof |
| WO2016033756A1 (en) * | 2014-09-03 | 2016-03-10 | 华为技术有限公司 | Composite right/left-handed transmission line antenna |
| CN105576352A (en) * | 2015-06-30 | 2016-05-11 | 宇龙计算机通信科技(深圳)有限公司 | Antenna and terminal |
| CN206271890U (en) * | 2016-11-09 | 2017-06-20 | 广东欧珀移动通信有限公司 | Antenna device and mobile terminal |
| CN106972254A (en) * | 2016-09-22 | 2017-07-21 | 瑞声科技(新加坡)有限公司 | Mobile terminal |
| CN107394404A (en) * | 2017-08-16 | 2017-11-24 | 维沃移动通信有限公司 | A kind of antenna structure and mobile terminal |
| CN208093735U (en) * | 2018-03-13 | 2018-11-13 | 广东欧珀移动通信有限公司 | Antenna module and electronic equipment |
| CN208299054U (en) * | 2018-06-28 | 2018-12-28 | 珠海市魅族科技有限公司 | Antenna and mobile terminal |
| CN105917527B (en) * | 2014-09-25 | 2019-05-10 | 华为技术有限公司 | Multi-band antennas and communication terminals |
-
2019
- 2019-12-24 CN CN201911347521.3A patent/CN111029729A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070249313A1 (en) * | 2006-04-19 | 2007-10-25 | Yokowo Co., Ltd. | Multi-band antenna |
| WO2011024280A1 (en) * | 2009-08-27 | 2011-03-03 | 株式会社 東芝 | Antenna device and communication device |
| WO2012169186A1 (en) * | 2011-06-08 | 2012-12-13 | パナソニック株式会社 | Antenna device |
| WO2016033756A1 (en) * | 2014-09-03 | 2016-03-10 | 华为技术有限公司 | Composite right/left-handed transmission line antenna |
| CN105917527B (en) * | 2014-09-25 | 2019-05-10 | 华为技术有限公司 | Multi-band antennas and communication terminals |
| CN104916921A (en) * | 2015-05-06 | 2015-09-16 | 深圳市万普拉斯科技有限公司 | Wireless communication equipment and antenna device thereof |
| CN105576352A (en) * | 2015-06-30 | 2016-05-11 | 宇龙计算机通信科技(深圳)有限公司 | Antenna and terminal |
| CN106972254A (en) * | 2016-09-22 | 2017-07-21 | 瑞声科技(新加坡)有限公司 | Mobile terminal |
| CN206271890U (en) * | 2016-11-09 | 2017-06-20 | 广东欧珀移动通信有限公司 | Antenna device and mobile terminal |
| CN107394404A (en) * | 2017-08-16 | 2017-11-24 | 维沃移动通信有限公司 | A kind of antenna structure and mobile terminal |
| CN208093735U (en) * | 2018-03-13 | 2018-11-13 | 广东欧珀移动通信有限公司 | Antenna module and electronic equipment |
| CN208299054U (en) * | 2018-06-28 | 2018-12-28 | 珠海市魅族科技有限公司 | Antenna and mobile terminal |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111490335A (en) * | 2020-04-30 | 2020-08-04 | 海信集团有限公司 | Planar antenna and electronic equipment |
| CN111834745A (en) * | 2020-07-29 | 2020-10-27 | Oppo广东移动通信有限公司 | An antenna device and electronic equipment |
| CN114122712A (en) * | 2020-08-28 | 2022-03-01 | 华为技术有限公司 | Antenna structure and electronic equipment |
| CN112201958A (en) * | 2020-09-18 | 2021-01-08 | Oppo广东移动通信有限公司 | Multi-frequency antenna, antenna assembly and customer premises equipment |
| CN112201958B (en) * | 2020-09-18 | 2023-08-15 | Oppo广东移动通信有限公司 | Multi-frequency antenna, antenna assembly and customer premises equipment |
| CN112216977A (en) * | 2020-09-29 | 2021-01-12 | 昆山亿趣信息技术研究院有限公司 | Mobile phone antenna and mobile phone |
| CN112490624A (en) * | 2020-11-23 | 2021-03-12 | 昆山睿翔讯通通信技术有限公司 | WiFi antenna and mobile terminal |
| CN112490624B (en) * | 2020-11-23 | 2024-01-09 | 昆山睿翔讯通通信技术有限公司 | WiFi antenna and mobile terminal |
| CN112531321A (en) * | 2020-11-27 | 2021-03-19 | 捷开通讯(深圳)有限公司 | Antenna assembly and mobile terminal |
| CN112531321B (en) * | 2020-11-27 | 2022-05-06 | 捷开通讯(深圳)有限公司 | Antenna assembly and mobile terminal |
| WO2022110316A1 (en) * | 2020-11-27 | 2022-06-02 | 捷开通讯(深圳)有限公司 | Antenna assembly and mobile terminal |
| CN112615140A (en) * | 2020-12-08 | 2021-04-06 | 广东湾区智能终端工业设计研究院有限公司 | Antenna structure and mobile terminal |
| CN112615140B (en) * | 2020-12-08 | 2024-01-30 | 广东湾区智能终端工业设计研究院有限公司 | Antenna structure and mobile terminal |
| CN112768875B (en) * | 2020-12-25 | 2023-07-25 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN112768875A (en) * | 2020-12-25 | 2021-05-07 | Oppo广东移动通信有限公司 | Electronic device |
| CN113258268A (en) * | 2021-04-12 | 2021-08-13 | 荣耀终端有限公司 | Antenna device and electronic apparatus |
| CN115411503A (en) * | 2021-05-27 | 2022-11-29 | Oppo广东移动通信有限公司 | Antenna devices and electronic equipment |
| CN115411503B (en) * | 2021-05-27 | 2024-03-08 | Oppo广东移动通信有限公司 | Antenna devices and electronic equipment |
| WO2023273493A1 (en) * | 2021-07-02 | 2023-01-05 | 深圳市锐尔觅移动通信有限公司 | Antenna apparatus and electronic device |
| WO2024098959A1 (en) * | 2022-11-11 | 2024-05-16 | Oppo广东移动通信有限公司 | Antenna apparatus and electronic device |
| CN119340647A (en) * | 2023-07-19 | 2025-01-21 | 北京骑胜科技有限公司 | Bluetooth antennas, positioning devices and vehicles |
| CN117559126A (en) * | 2024-01-11 | 2024-02-13 | 成都瑞迪威科技有限公司 | Multi-frequency adjustable radiator and multi-frequency multi-mode monopole antenna with its own electrical size |
| CN117559126B (en) * | 2024-01-11 | 2024-03-29 | 成都瑞迪威科技有限公司 | Self-electric-size multi-frequency adjustable radiator and multi-frequency multi-mode monopole antenna |
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Application publication date: 20200417 |