CN106684557B - Antenna module and electronic equipment - Google Patents
Antenna module and electronic equipment Download PDFInfo
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- CN106684557B CN106684557B CN201510763023.2A CN201510763023A CN106684557B CN 106684557 B CN106684557 B CN 106684557B CN 201510763023 A CN201510763023 A CN 201510763023A CN 106684557 B CN106684557 B CN 106684557B
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- earthed circuit
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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
- 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
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- Waveguide Aerials (AREA)
- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The disclosure discloses a kind of antenna module and electronic equipment, belongs to field of antenna.The antenna module includes: antenna body, at least feed circuit and at least two-way earthed circuit all the way；At least feed circuit is connected by corresponding feeding point with antenna body all the way；At least two-way earthed circuit passes through corresponding grounding point respectively and is connected with antenna body.The disclosure solves the antenna provided in the related technology and only covers full frequency band by the antenna of single form, leads to the problem that antenna performance is bad；Reach and signal radiation is carried out using various forms of antennas for different frequency ranges, to improve the effect of antenna radiation performance.
Description
Technical field
This disclosure relates to field of antenna, in particular to a kind of antenna module and electronic equipment.
Background technique
With the continuous development of electronic equipment manufacture craft, more and more electronic equipments have used metal back cover, phase
Compared with traditional back plastic cover, metal back cover is more beautiful and sense of touch more preferably.
In order to reduce influence of the metal back cover to aerial signal, the relevant technologies by carrying out processing of cracking to metal back cover,
Segmented metal back cover is formed, and carries out the radiation of signal using the bottom metal back-cover after segmentation as antenna.But related skill
The antenna provided in art only covers full frequency band by the antenna of single form, causes antenna performance bad.
Summary of the invention
Full frequency band is only covered by the antenna of single form in order to solve the antenna provided in the related technology, leads to antenna
The bad problem of performance, the disclosure provide a kind of antenna module and electronic equipment.The technical solution is as follows:
According to the first aspect of the embodiments of the present disclosure, a kind of antenna module is provided, which includes:
Antenna body, at least feed circuit and at least two-way earthed circuit all the way；
At least feed circuit is connected by corresponding feeding point with antenna body all the way；
At least two-way earthed circuit passes through corresponding grounding point respectively and is connected with antenna body.
Optionally, at least two-way earthed circuit is used to provide at least two ground connection modes, the ground connection under every kind of ground connection mode
Circuit and antenna body and feed circuit form a kind of antenna of predetermined form；
The antenna of predetermined form includes loop aerial, inverted F shaped antenna or unipole antenna.
Optionally, including feed circuit, the first earthed circuit and the second earthed circuit all the way, the first ground connection in antenna module
Circuit is connected by the first grounding point with antenna body, and the second earthed circuit is connected by the second grounding point with antenna body；
It include first switch circuit in first earthed circuit, first switch circuit is for controlling the first earthed circuit and first
On off operating mode between grounding point；It include second switch circuit in second earthed circuit, second switch circuit is for controlling second
On off operating mode between earthed circuit and the second grounding point；
When first switch circuit is in an off state, and second switch circuit is in the conductive state, antenna body, feed
Circuit and the second earthed circuit form loop aerial；
When first switch circuit is in the conductive state, and second switch circuit is in an off state, antenna body, feed
Circuit and the first earthed circuit form inverted F shaped antenna.
Optionally, loop aerial is the antenna for supporting the first frequency range, and the first frequency range is the frequency range that frequency is less than threshold value；Inverted f
Type antenna is the antenna for supporting the second frequency range, and the second frequency range is the frequency range that frequency is greater than threshold value.
It optionally, further include the first inductance in the second earthed circuit, the first inductance includes at least two inductance values；
First inductance is used for when forming loop aerial, and the frequency of the first frequency range is adjusted by switching inductance value, wherein the
It is in inversely prroportional relationship between the frequency and inductance value of one frequency range.
It optionally, further include third earthed circuit in antenna module, third earthed circuit passes through third grounding point and antenna
Ontology is connected；
Third earthed circuit is used for when forming loop aerial, is eliminated and is located above antenna body with the second earthed circuit
Interference of the metal to antenna body；
Third earthed circuit is also used to when forming inverted F shaped antenna, is eliminated and is located on antenna body with the first earthed circuit
Interference of the metal of side to antenna body.
Optionally, including feed circuit, the first earthed circuit and the second earthed circuit all the way, the first ground connection in antenna module
Circuit is connected by the first grounding point with antenna body, and the second earthed circuit is connected by the second grounding point with antenna body；
It include first switch circuit in first earthed circuit, first switch circuit is for controlling the first earthed circuit and first
On off operating mode between grounding point；It include the second inductance in second earthed circuit, the second inductance is greater than for screening frequencies
The frequency range of threshold value；
When first switch circuit is in an off state, and the frequency of feed circuit output signal is less than threshold value, antenna sheet
Body, feed circuit and the second earthed circuit form loop aerial；
When first switch circuit is in the conductive state, and the frequency of feed circuit output signal is greater than threshold value, antenna sheet
Body, feed circuit and the first earthed circuit form inverted F shaped antenna.
It optionally, further include the third inductance of earth in feed circuit, third inductance includes at least two inductance values；
Third inductance is used for when forming loop aerial, and the frequency of the first frequency range is adjusted by switching inductance value, wherein the
One frequency range is the frequency range that loop aerial is supported, is in inversely prroportional relationship between the frequency and inductance value of the first frequency range.
It optionally, include the first feed circuit, the second feed circuit, the first earthed circuit and the second ground connection in antenna module
Circuit, the first feed circuit are connected by the first feeding point with antenna body, and the second feed circuit passes through the second feeding point and day
Line ontology is connected, and the first earthed circuit is connected by the first grounding point with antenna body, and the second earthed circuit passes through the second ground connection
Point is connected with antenna body；
It include first switch circuit in first earthed circuit, first switch circuit is for controlling the first earthed circuit and first
On off operating mode between grounding point；It include second switch circuit in second earthed circuit, second switch circuit is for controlling second
On off operating mode between earthed circuit and the second grounding point；
When first switch circuit is in the conductive state, and second switch circuit is in an off state, antenna body, first
Feed circuit and the first earthed circuit form loop aerial；
When first switch circuit is in an off state, and second switch circuit is in the conductive state, antenna body, second
Feed circuit and the second earthed circuit form inverted F shaped antenna.
Optionally, include the first suppression circuit in the first feed circuit, include the second suppression circuit in the second feed circuit；
Wherein, the signal that the first suppression circuit is used to that the second feed circuit to be inhibited to export, the second suppression circuit is for inhibiting
The signal of first feed circuit output.
According to the second aspect of an embodiment of the present disclosure, a kind of electronic equipment is provided, which includes such as first aspect
The antenna module.
Optionally, the back-cover of electronic equipment is segmented metal back cover, and antenna body is the bottom of segmented metal back cover
Metal back cover.
The technical scheme provided by this disclosed embodiment can include the following benefits:
By the way that at least two grounding points are arranged on antenna body, and pass through the grounding point and at least two-way earthed circuit phase
Even；The antenna provided in the related technology is provided, full frequency band is only covered by the antenna of single form, leads to antenna performance not
Good problem；Reach and signal radiation is carried out using various forms of antennas for different frequency ranges, to improve aerial radiation
The effect of performance.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
It is open.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and consistent with the instructions for explaining the principles of this disclosure.
Fig. 1 is the structural schematic diagram of the antenna module shown in one exemplary embodiment of the disclosure；
Fig. 2A is the structural schematic diagram of the antenna module shown in another exemplary embodiment of the disclosure；
Fig. 2 B is the schematic diagram for the inverted F shaped antenna that the antenna module shown in Fig. 2A is formed；
Fig. 2 C is the schematic diagram for the loop aerial that the antenna module shown in Fig. 2A is formed；
Fig. 2 D is schematic diagram of the metal across seam；
Fig. 2 E is that the antenna module shown in Fig. 2A adds the structural schematic diagram after additional grounding point；
Fig. 3 A is the structural schematic diagram of the antenna module shown in disclosure further exemplary embodiment；
Fig. 3 B is the schematic diagram for the loop aerial that the antenna module shown in Fig. 3 A is formed；
Fig. 3 C is the schematic diagram for the inverted F shaped antenna that the antenna module shown in Fig. 3 A is formed；
Fig. 4 A is the structural schematic diagram of the antenna module shown in another exemplary embodiment of the disclosure；
Fig. 4 B is the schematic diagram for the loop aerial that the antenna module shown in Fig. 4 A is formed；
Fig. 4 C is the schematic diagram for the inverted F shaped antenna that the antenna module shown in Fig. 4 A is formed；
Fig. 5 is the structural schematic diagram for the electronic equipment that one exemplary embodiment of the disclosure provides.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The consistent example of some aspects be described in detail in claims, the disclosure.
Referring to FIG. 1, it illustrates the structural representations of the antenna module 100 shown in one exemplary embodiment of the disclosure
Figure.The antenna module 100 includes: antenna body 110, at least feed circuit 120 and at least two-way earthed circuit 130 all the way.
At least feed circuit 120 is connected by corresponding feeding point 111 with antenna body 110 all the way；
At least two-way earthed circuit 130 is connected by corresponding grounding point 112 with antenna body 110 respectively.
In Fig. 1, at least two-way earthed circuit 130 includes: the first earthed circuit 131 and the second earthed circuit 132, grounding point
112 include: grounding point 112A and grounding point 112B.
Wherein the first earthed circuit 131 is connected by grounding point 112A with antenna body 110, and the second earthed circuit 132 is logical
Grounding point 112B is crossed to be connected with antenna body 110.
At least earthed circuit of the two-way earthed circuit 130 for providing at least two ground connection modes, under every kind of ground connection mode
130 form a kind of antenna of predetermined form with antenna body 110 and feed circuit 120, and the antenna of the predetermined form includes ring
Shape antenna, inverted F shaped antenna or unipole antenna；The ground connection mode can refer to that earthed circuit short circuit grounding, earthed circuit pass through capacitor
By inductance ground connection etc., the disclosure is defined not to this for ground connection, earthed circuit.
Wherein, at least two ground connection modes can refer to the combination of at least respective ground state of two-way earthed circuit.For example,
As shown in Figure 1, when the first earthed circuit 131 is in the conductive state under switching circuit control, (i.e. the first earthed circuit 131 is connect
Ground), and the second earthed circuit 132 switching circuit control under be in an off state (i.e. the second earthed circuit 132 is earth-free) when,
Then at least two-way earthed circuit 130 is in the first ground connection mode, earthed circuit 131 and antenna body 110 and feed circuit 120
Form inverted F shaped antenna；When the first earthed circuit 131 is in an off state (i.e. the first earthed circuit 131 under switching circuit control
It is earth-free), and the second earthed circuit 132 is under switching circuit control (i.e. the second earthed circuit 132 ground connection) in the conductive state
When, then at least two-way earthed circuit 130 is in the second ground connection mode, earthed circuit 132 and antenna body 110 and feed circuit
120 form loop aerial.In other possible embodiments, when the first earthed circuit 131 is under switching circuit control
Off-state, and when the second earthed circuit 132 is in an off state under switching circuit control, feed circuit 120 and antenna sheet
Body 110 can form unipole antenna, and the present embodiment is not limited thereto.
It should be noted that in Fig. 1 by include in antenna module 100 all the way for feed circuit and two-way earthed circuit into
Row exemplary illustration, but the embodiment of the present disclosure does not constitute restriction to the number of feed circuit, and the number of feed circuit can be one
It is more than road；The embodiment of the present disclosure does not also constitute restriction to the number of earthed circuit, and the number of earthed circuit can be two-way or more,
The disclosure is not constituted and is limited.
In conclusion antenna module provided in this embodiment, by the way that at least two grounding points are arranged on antenna body, and
It is connected by the grounding point at least two-way earthed circuit；The antenna provided in the related technology is provided and only passes through single form
Antenna covers full frequency band, leads to the problem that antenna performance is bad；Reach for different frequency ranges using various forms of days
Line carries out signal radiation, to improve the effect of antenna radiation performance.
Fig. 2A is please referred to, it illustrates the structures of the antenna module 200 shown in another exemplary embodiment of the disclosure to show
It is intended to.The antenna module 200 includes: antenna body 210, feed circuit 220, the first earthed circuit 231 and the second earthed circuit
232。
First earthed circuit 231 is connected by the first grounding point 211 with antenna body 210.It is wrapped in first earthed circuit 231
First switch circuit 231A is included, first switch circuit 231A is for controlling between the first earthed circuit 231 and the first grounding point 211
On off operating mode.When first switch circuit 231A is in an off state, the first earthed circuit 231 and the first grounding point 211 it
Separated, i.e., the first grounding point 211 is unearthed；When first switch circuit 231A is in the conductive state, the first earthed circuit 231
It is connected between the first grounding point 211, i.e. the first grounding point 211 ground connection.
Second earthed circuit 232 is connected by the second grounding point 212 with antenna body 210.It is wrapped in second earthed circuit 232
Second switch circuit 232A is included, second switch circuit 232A is for controlling between the second earthed circuit 232 and the second grounding point 212
On off operating mode.When second switch circuit 232A is in an off state, the second earthed circuit 232 and the second grounding point 212 it
Separated, i.e., the second grounding point 212 is unearthed；When second switch circuit 232A is in the conductive state, the second earthed circuit 232
It is connected between the second grounding point 212, i.e. the second grounding point 212 ground connection.
Feed circuit 220 is connected by feeding point 213 with antenna body 210, further includes being used in the feed circuit 220
Carry out the match circuit 221 of impedance matching.
When first switch circuit 231A is in the conductive state, and second switch circuit 232A is in an off state, such as scheme
Shown in 2B, antenna body 210, feed circuit 220 and the first earthed circuit 231 form inverted F shaped antenna.Wherein, inverted F shaped antenna is
Support the antenna of the second frequency range, the second frequency range is the frequency range that frequency is greater than threshold value, for example, second frequency range can be 1700MHz
To 2700MHz.I.e. in high frequency, antenna body, feed circuit and the first earthed circuit carry out high frequency in the form of inverted F shaped antenna
Signal radiation.
When first switch circuit 231A is in an off state, and second switch circuit 232A is in the conductive state, such as scheme
Shown in 2C, antenna body 210, feed circuit 220 and the second earthed circuit 232 form loop aerial.Wherein, loop aerial is branch
The antenna of the first frequency range is held, the first frequency range is the frequency range that frequency is less than threshold value, for example, first frequency range can be for 700MHz extremely
900MHz.I.e. in low frequency, antenna body, feed circuit and the second earthed circuit carry out low frequency signal in the form of loop aerial
Radiation.
It should be noted that when first switch circuit 231A is in an off state, and second switch circuit 232A is in disconnected
When open state, antenna body 210 and feed circuit 220 can also form unipole antenna, and the disclosure is defined not to this.
In order to use less state that can cover entire low-frequency range, in a kind of possible embodiment, such as Fig. 2A or
It further include the first inductance 232B in the second earthed circuit 232 shown in Fig. 2 C.First inductance 232B includes at least two inductance values,
That is the second earthed circuit 232 is grounded by the way of loading a variable inductance.It should be noted that in other possible realization sides
In formula, the first inductance 232B may alternatively be other equivalence elements such as capacitor, and the disclosure is not to being defined.
As shown in Figure 2 C, when forming loop aerial, the inductance value by switching the first inductance 232B be can be realized to the
The adjusting of the frequency of one frequency range, wherein be in inversely prroportional relationship, i.e. the first inductance 232B between the frequency and inductance value of the first frequency range
Inductance value it is bigger, the frequency of low frequency state is lower.In a kind of possible embodiment, pass through the first inductance 232B's of switching
Two kinds of inductance values, to realize that two kinds of low frequency states, the loop aerial can cover the low-frequency range of 700MHz to 900MHz.Compared to
Different low frequency bandwidth is modulated by tunable technology, meets different low frequency bandwidth by adjusting the inductance value of inductance, it is real
Existing complexity is substantially reduced, and can reduce development cost.
In conclusion antenna module provided in this embodiment, by the way that at least two grounding points are arranged on antenna body, and
It is connected by the grounding point at least two-way earthed circuit；The antenna provided in the related technology is provided and only passes through single form
Antenna covers full frequency band, leads to the problem that antenna performance is bad；Reach for different frequency ranges using various forms of days
Line carries out signal radiation, to improve the effect of antenna radiation performance.
In the present embodiment, in low frequency, loop aerial is formed by antenna body, feed circuit and the second earthed circuit,
Signal is radiated；In high frequency, inverted F shaped antenna is formed by antenna body, feed circuit and the first earthed circuit, to letter
It number is radiated, entire frequency range is covered using different antenna forms to realize, compared to the antenna for using single form, day
It can linearly be greatly improved.
In the present embodiment, by loading an inductance in the second earthed circuit, and the inductance value of the inductance is adjusted to obtain
Different low frequency states is obtained, entire low-frequency range, and the corresponding bandwidth of every kind of state can be covered using less state by realizing
It is wider, be conducive to the carrier wave polymerization in broadband.
As shown in Figure 2 D, when the antenna module is used for the electronic equipment with segmented metal back cover, the antenna module
In antenna body can be segmented metal back cover bottom metal back-cover 240.Since segmented metal back cover is at place of cracking
(i.e. cracking between bottom metal back-cover 240 and adjacent metal back-cover 250) signal radiation is strong, when in the presence of such as FPC
(Flexible Printed Circuit, flexible circuit board), USB (Universal Serial Bus, universal serial bus)
Or the metal spans of physical button one kind this when cracking, the radiance of antenna will be severely impacted (especially for high frequency
Signal).In order to reduce metal spans influence caused by signal, in a kind of possible embodiment, as shown in Figure 2 E, antenna
It further include third earthed circuit 233 in component 200, third earthed circuit 233 passes through third grounding point 214 and antenna body 210
It is connected.
Third earthed circuit 233 is also used to when forming inverted F shaped antenna, is eliminated with the first earthed circuit 231 and is located at antenna
Interference of the metal of 210 top of ontology to antenna body 210.
As shown in Figure 2 E, when antenna body 220, the first earthed circuit 231 and feed circuit 220 formation inverted F shaped antenna, and
When third grounding point 233 is connected by grounding point 214 with antenna body 210, when there are metals to be located at 210 top of antenna body
When (i.e. leap in Fig. 2 D is cracked), under the action of the first earthed circuit 231 and third grounding point 233, metal is across seam to day
The influence of the radiance of line ontology 220 will be reduced or even eliminated.It should be noted that the embodiment of the present disclosure is not to
The link position of three earthed circuits and antenna body is defined, and multiple third ground connection electricity can be set in the antenna module
Road, so that preferably solve metal influences caused by antenna performance across seam.
In the present embodiment, by the way that additional earthed circuit is arranged in antenna module, when so that there are metals across seam situation,
Influence of the metal across seam to the radiance of antenna body will be reduced or even eliminated, and ensure that the stabilization of antenna module work
Property.
As shown in Figure 3A, it illustrates the structures of the antenna module 300 shown in disclosure further exemplary embodiment to show
It is intended to.The antenna module 300 includes: antenna body 310, feed circuit 320, the first earthed circuit 331 and the second earthed circuit
332。
First earthed circuit 331 is connected by the first grounding point 311 with antenna body 310.It is wrapped in first earthed circuit 331
First switch circuit 331A is included, first switch circuit 331A is for controlling between the first earthed circuit 331 and the first grounding point 311
On off operating mode.When first switch circuit 331A is in an off state, the first earthed circuit 331 and the first grounding point 311 it
Separated, i.e., the first grounding point 311 is unearthed；When first switch circuit 331A is in the conductive state, the first earthed circuit 331
It is connected between the first grounding point 311, i.e. the first grounding point 311 ground connection.
Second earthed circuit 332 is connected by the second grounding point 312 with antenna body 310.It is wrapped in second earthed circuit 332
Include the frequency range that the second inductance 332A, the second inductance 332A is greater than threshold value for screening frequencies.As a kind of possible embodiment,
Second inductance 332A can be the biggish inductance of inductance value, so that the second inductance 332A opens a way to high frequency, to low frequency channel.Than
Such as, the second inductance 332A can be the inductance that inductance value is 10nH.It should be noted that in other possible implementations,
Second inductance 332A may alternatively be other equivalence elements such as capacitor, switch, and the disclosure is not to being defined.
Feed circuit 320 is connected by feeding point 313 with antenna body 310.
When first switch circuit 331A is in an off state, and the frequency of 320 output signal of feed circuit is less than threshold value,
Since the second inductance 332A in the second earthed circuit 332 is to low frequency channel, at this point, antenna body 310 passes through the second grounding point
312 ground connection.As shown in Figure 3B, antenna body 310, feed circuit 320 and the second earthed circuit 332 form loop aerial, wherein
Loop aerial is the antenna of low-frequency range.I.e. in low frequency, antenna body 310, feed circuit 320 and the second earthed circuit 332 with
The form of loop aerial carries out low frequency signal radiation.
When first switch circuit 331A is in the conductive state, and the frequency of 320 output signal of feed circuit is greater than threshold value,
Since the second inductance 332A in the second earthed circuit 332 opens a way to high frequency, at this point, antenna body 310 passes through the first grounding point
311 ground connection.As shown in Figure 3 C, antenna body 310, feed circuit 320 and the first earthed circuit 331 form inverted F shaped antenna,
In, inverted F shaped antenna is the antenna for supporting low-frequency range.I.e. in high frequency, antenna body 310, feed circuit 320 and the first ground connection electricity
Road 331 carries out low frequency signal radiation in the form of inverted F shaped antenna.
In order to use less state that can cover entire low-frequency range, as shown in Figure 3A, in the feed circuit 320, also wrap
A matching conditioned circuit 321 is included, which is used to carry out the switching of antenna match and different low frequency states.
In a kind of possible embodiment, as shown in Figure 3B, in the matching conditioned circuit 321, including it to be used for antenna
The third inductance 321B of the match circuit 321A and earth matched.Wherein, third inductance 321B includes at least two inductance values,
And the on off operating mode of third inductance 321B can be controlled by switch, in high frequency, switch control third inductance 321B is disconnected
Ground connection, in low frequency, switch control third inductance 321B ground connection, and the inductance value by adjusting third inductance 321B, it realizes not
With the switching of low frequency state.
When antenna body 310, feed circuit 320 and the second earthed circuit 332 form loop aerial, by switching third
The inductance value of inductance 321B is the frequency of adjustable first frequency range, wherein the first frequency range is the low-frequency range that loop aerial is supported, the
It is in inversely prroportional relationship between the frequency and inductance value of one frequency range, i.e. the inductance value of third inductance 321B is bigger, the frequency of low frequency state
Rate is lower.
It should be noted that the present embodiment only by match in conditioned circuit 321 comprising earth controllable impedance for
It is illustrated, in other possible embodiments, matching conditioned circuit 321 can also pass through other elements and connection side
Formula, realizes the switching of different low frequency states, and the disclosure is defined not to this.
In conclusion antenna module provided in this embodiment, by the way that at least two grounding points are arranged on antenna body, and
It is connected by the grounding point at least two-way earthed circuit；The antenna provided in the related technology is provided and only passes through single form
Antenna covers full frequency band, leads to the problem that antenna performance is bad；Reach for different frequency ranges using various forms of days
Line carries out signal radiation, to improve the effect of antenna radiation performance.
In the present embodiment, by loading an inductance in feed circuit, and the inductance value of the inductance is adjusted to obtain not
Same low frequency state, entire low-frequency range, and the corresponding broader bandwidth of every kind of state can be covered using less state by realizing,
Be conducive to the carrier wave polymerization in broadband.
It should be noted that when cracking there are metal spans, it is similar with Fig. 2 E illustrated embodiment, it can be by day
Increase additional grounding point on line ontology to eliminate metal across seam influence caused by signal, details are not described herein for the present embodiment.
As shown in Figure 4 A, it illustrates the structures of the antenna module 400 shown in another exemplary embodiment of the disclosure to show
It is intended to.The antenna module 400 includes: antenna body 410, the first feed circuit 421, the second feed circuit 422, first ground connection electricity
Road 431 and the second earthed circuit 432.
First feed circuit 421 is connected by the first feeding point 411 with antenna body 410, and the second feed circuit 422 passes through
Second feeding point 412 is connected with antenna body 410.
First earthed circuit 431 is connected by the first grounding point 413 with antenna body 410.It is wrapped in first earthed circuit 431
First switch circuit 431A is included, first switch circuit 431A is for controlling between the first earthed circuit 431 and the first grounding point 413
On off operating mode.
Second earthed circuit 432 is connected by the second grounding point 414 with antenna body 410.It is wrapped in second earthed circuit 432
Second switch circuit 432A is included, second switch circuit 432A is for controlling between the second earthed circuit 432 and the second grounding point 414
On off operating mode.
When first switch circuit 431A is in the conductive state, and second switch circuit 432A is in an off state, such as scheme
Shown in 4B, antenna body 410, the first feed circuit 421 and the first earthed circuit 431 form loop aerial, wherein the annular day
Line supports low-band signal radiation.
It should be noted that in order to use less state that can cover entire low-frequency range, in a kind of possible embodiment party
It include also a variable inductance 431B in the first earthed circuit 431 as shown in Fig. 4 A or 4B in formula, when forming loop aerial,
It can be by the inductance value of adjusting variable inductance 431B, to realize different low frequency states.In addition, variable inductance 431B can be by
Equivalence replacement replaces with the other elements such as capacitor, and the disclosure is not to being defined.
When first switch circuit 431A is in an off state, and second switch circuit 432A is in the conductive state, such as scheme
Shown in 4C, antenna body 410, the second feed circuit 422 and the second earthed circuit 432 form inverted F shaped antenna, wherein this is reversed F-typed
Antenna supports high frequency band signal radiation.
It should be noted that when first switch circuit 431A and second switch circuit 432A are in off-state, day
Line ontology 410 and the first feed circuit 421, or, antenna body 410 and the second feed circuit 422 are capable of forming unipole antenna, this
It is open to be defined not to this.
In addition, due to there are two way feed circuit, interfering with each other between each line feed circuit output signal in order to prevent,
It include the first suppression circuit 421A in the first feed circuit 421 as shown in Figure 4 A in a kind of possible embodiment, second
It include the second suppression circuit 422A in feed circuit 422.
Wherein, the signal that the first suppression circuit 421A is used to that the second feed circuit 422 to be inhibited to export, the second suppression circuit
The signal that 422A is used to that the first feed circuit 421 to be inhibited to export.
In conclusion antenna module provided in this embodiment, by the way that at least two grounding points are arranged on antenna body, and
It is connected by the grounding point at least two-way earthed circuit；The antenna provided in the related technology is provided and only passes through single form
Antenna covers full frequency band, leads to the problem that antenna performance is bad；Reach for different frequency ranges using various forms of days
Line carries out signal radiation, to improve the effect of antenna radiation performance.
It should be noted that when cracking there are metal spans, it is similar with Fig. 2 E illustrated embodiment, it can be by day
Increase additional grounding point on line ontology to eliminate metal across seam influence caused by signal, details are not described herein for the present embodiment.
As shown in figure 5, it illustrates the structural schematic diagrams of the electronic equipment shown in one exemplary embodiment of the disclosure.This
Embodiment is illustrated so that the metal back cover of the electronic equipment includes any of the above-described antenna module for implementing to exemplify as an example.
As shown in figure 5, the back-cover of electronic equipment is segmented metal back cover, which includes two sections, point
It Wei not top metal back-cover 510 and bottom metal back-cover 520.The antenna body for including in antenna module provided by the above embodiment
As bottom metal back-cover 520.Feeding point 521, the first grounding point 522 and the second ground connection are provided in bottom metal back-cover 520
Point 523.
Feeding point 521 passes through feeder line and electronic equipment internal PCB (Printed Circuit Board, printed circuit board)
Feed end be connected, the first grounding point 522 and the second grounding point 523 can be connected with the ground terminal of electronic equipment internal PCB,
It can be connected with top metal back-cover 510 and (be equivalent to ground connection), the disclosure is defined not to this.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (10)
1. a kind of antenna module, which is characterized in that the antenna module includes:
Antenna body, at least feed circuit and at least two-way earthed circuit all the way；It is described that at least feed circuit includes all the way all the way
The feed circuit；At least two-way earthed circuit includes the first earthed circuit, the second earthed circuit and third earthed circuit；
First earthed circuit is connected by the first grounding point with the antenna body, and second earthed circuit passes through second
Grounding point is connected with the antenna body；The third earthed circuit is connected by third grounding point with the antenna body；One
Feed circuit described in road is connected by corresponding feeding point with the antenna body；
It include first switch circuit in first earthed circuit, the first switch circuit is for controlling the first ground connection electricity
On off operating mode between road and first grounding point；In second earthed circuit include second switch circuit, described second
Switching circuit is used to control the on off operating mode between second earthed circuit and second grounding point；
When the first switch circuit is in an off state, and the second switch circuit is in the conductive state, the antenna
Ontology, the feed circuit and second earthed circuit form loop aerial；
When the first switch circuit is in the conductive state, and the second switch circuit is in an off state, the antenna
Ontology, the feed circuit and first earthed circuit form inverted F shaped antenna；
The third earthed circuit is used for when forming the loop aerial, is eliminated with second earthed circuit and is located at the day
Interference of the metal to the antenna body above line ontology；
The third earthed circuit is also used to when forming the inverted F shaped antenna, is eliminated with first earthed circuit and is located at institute
State interference of the metal to the antenna body above antenna body.
2. antenna module according to claim 1, which is characterized in that at least two-way earthed circuit is for providing at least
Two kinds of ground connection modes, the earthed circuit and the antenna body and the feed circuit under every kind of ground connection mode form one
The antenna of kind predetermined form；
The antenna of the predetermined form includes the loop aerial, the inverted F shaped antenna or unipole antenna.
3. antenna module according to claim 1, which is characterized in that
The loop aerial is the antenna for supporting the first frequency range, and first frequency range is the frequency range that frequency is less than threshold value；The inverted f
Type antenna is the antenna for supporting the second frequency range, and second frequency range is the frequency range that frequency is greater than the threshold value.
4. antenna module according to claim 3, which is characterized in that further include the first electricity in second earthed circuit
Sense, first inductance include at least two inductance values；
First inductance is used for when forming the loop aerial, adjusts first frequency range by switching the inductance value
Frequency, wherein be in inversely prroportional relationship between the frequency and the inductance value of first frequency range.
5. antenna module according to claim 1 or 2, which is characterized in that include the feedback all the way in the antenna module
Circuit, the first earthed circuit and the second earthed circuit, first earthed circuit pass through the first grounding point and the antenna sheet
Body is connected, and second earthed circuit is connected by the second grounding point with the antenna body；
It include first switch circuit in first earthed circuit, the first switch circuit is for controlling the first ground connection electricity
On off operating mode between road and first grounding point；It include the second inductance, second inductance in second earthed circuit
It is greater than the frequency range of threshold value for screening frequencies；
When the first switch circuit is in an off state, and the frequency of the feed circuit output signal is less than the threshold value
When, the antenna body, the feed circuit and second earthed circuit form loop aerial；
When the first switch circuit is in the conductive state, and the frequency of the feed circuit output signal is greater than the threshold value
When, the antenna body, the feed circuit and first earthed circuit form inverted F shaped antenna.
6. antenna module according to claim 5, which is characterized in that further include the of earth in the feed circuit
Three inductance, the third inductance include at least two inductance values；
The third inductance is used for when forming the loop aerial, and the frequency of the first frequency range is adjusted by switching the inductance value
Rate, wherein first frequency range is the frequency range that the loop aerial is supported, the frequency and the inductance value of first frequency range it
Between be in inversely prroportional relationship.
7. antenna module according to claim 1 or 2, which is characterized in that include the first feed electricity in the antenna module
Road, the second feed circuit, the first earthed circuit and the second earthed circuit, first feed circuit pass through the first feeding point and institute
It states antenna body to be connected, second feed circuit is connected by the second feeding point with the antenna body, first ground connection
Circuit is connected by the first grounding point with the antenna body, and second earthed circuit passes through the second grounding point and the antenna
Ontology is connected；
It include first switch circuit in first earthed circuit, the first switch circuit is for controlling the first ground connection electricity
On off operating mode between road and first grounding point；In second earthed circuit include second switch circuit, described second
Switching circuit is used to control the on off operating mode between second earthed circuit and second grounding point；
When the first switch circuit is in the conductive state, and the second switch circuit is in an off state, the antenna
Ontology, first feed circuit and first earthed circuit form loop aerial；
When the first switch circuit is in an off state, and the second switch circuit is in the conductive state, the antenna
Ontology, second feed circuit and second earthed circuit form inverted F shaped antenna.
8. antenna module according to claim 7, which is characterized in that include the first inhibition electricity in first feed circuit
Road includes the second suppression circuit in second feed circuit；
Wherein, first suppression circuit is used to inhibit the signal of the second feed circuit output, second suppression circuit
For inhibiting the signal of the first feed circuit output.
9. a kind of electronic equipment, which is characterized in that the electronic equipment includes antenna sets as described in any of the claims 1 to 8
Part.
10. electronic equipment according to claim 9, which is characterized in that the back-cover of the electronic equipment is segmented metal
Back-cover, the antenna body are the bottom metal back-covers of the segmented metal back cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510763023.2A CN106684557B (en) | 2015-11-10 | 2015-11-10 | Antenna module and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510763023.2A CN106684557B (en) | 2015-11-10 | 2015-11-10 | Antenna module and electronic equipment |
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| CN106684557A CN106684557A (en) | 2017-05-17 |
| CN106684557B true CN106684557B (en) | 2019-11-15 |
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| CN201510763023.2A Active CN106684557B (en) | 2015-11-10 | 2015-11-10 | Antenna module and electronic equipment |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898879B (en) * | 2015-12-21 | 2020-11-27 | 小米科技有限责任公司 | Antenna assembly and electronic equipment |
| CN107196042B (en) * | 2017-05-27 | 2020-02-07 | 北京小米移动软件有限公司 | Antenna module, terminal and electronic equipment |
| CN107658575A (en) * | 2017-09-18 | 2018-02-02 | 青岛海信移动通信技术股份有限公司 | A kind of antenna assembly and mobile terminal for mobile terminal |
| CN108183331B (en) * | 2017-12-14 | 2020-12-01 | Oppo广东移动通信有限公司 | Antenna tuning circuit, antenna device and mobile terminal |
| CN108336482A (en) * | 2018-01-25 | 2018-07-27 | 维沃移动通信有限公司 | A kind of antenna module, electronic equipment and antenna allocation method |
| CN108376830A (en) * | 2018-02-08 | 2018-08-07 | 广东欧珀移动通信有限公司 | The antenna assembly and electronic equipment of electronic equipment |
| CN108565561B (en) * | 2018-04-16 | 2021-04-02 | Oppo广东移动通信有限公司 | Antenna assembly and electronic equipment |
| CN109586030B (en) * | 2018-12-25 | 2021-06-29 | 维沃移动通信有限公司 | Mobile terminal and antenna control method |
| KR20220108184A (en) * | 2019-12-23 | 2022-08-02 | 후아웨이 테크놀러지 컴퍼니 리미티드 | printed antenna |
| CN111029732A (en) * | 2019-12-31 | 2020-04-17 | 上海摩勤智能技术有限公司 | Antenna device and handheld communication equipment |
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| JP5414827B2 (en) * | 2012-03-30 | 2014-02-12 | 株式会社東芝 | ANTENNA DEVICE AND ELECTRONIC DEVICE HAVING THE ANTENNA DEVICE |
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| CN106684557A (en) | 2017-05-17 |
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