CN109273854A - Electronic equipment - Google Patents
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- CN109273854A CN109273854A CN201811165586.1A CN201811165586A CN109273854A CN 109273854 A CN109273854 A CN 109273854A CN 201811165586 A CN201811165586 A CN 201811165586A CN 109273854 A CN109273854 A CN 109273854A
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- antenna
- circuit
- electronic equipment
- frequency range
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Classifications
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- 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
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
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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
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- 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
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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- 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
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
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- 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
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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Abstract
Present disclose provides a kind of electronic equipment.The electronic equipment includes at least one antenna, the corresponding communication system of the frequency range different from least two and matching network circuit.At least one antenna includes first antenna, and the working frequency range of the first antenna covers described at least two different frequency ranges, and the first antenna is used for so that the electronic equipment supports the 5th third generation mobile communication network.The matching network circuit is for working in the first antenna so that the electronic equipment supports initial impedance when the first working frequency range of the 5th third generation mobile communication network to carry out impedance matching, so that the output impedance of the matching network circuit reaches normal impedance.
Description
Technical field
This disclosure relates to a kind of electronic equipment.
Background technique
It is whole in communication as the standard and commercialization process of the 5th third generation mobile communication network 5G-NR (New Radio) accelerates
It is imperative using work antenna progress the 5th third generation mobile communication network communication of the 5th third generation mobile communication network of support on end.Especially
It is that current phone is shielded comprehensively under pandemic background of the design of all-metal, and antenna headroom subtracts on communication terminals
Small, this causes to propose the Combined design of 5G-NR and traditional 4G, 3G, and/or 2G antenna on communication terminals more tight
Severe requirement.
Summary of the invention
Present disclose provides a kind of electronic equipment.The electronic equipment includes: at least one antenna, at least one antenna
Including first antenna, the working frequency range of the first antenna covers at least two different frequency ranges, and the first antenna is for making
It obtains the electronic equipment and supports the 5th third generation mobile communication network；The corresponding communication system of the frequency range different from described at least two；
And matching network circuit, the matching network circuit is for working in the first antenna so that the electronic equipment branch
Initial impedance when holding the first working frequency range of the 5th third generation mobile communication network carries out impedance matching, so that the matching network is electric
The output impedance on road reaches normal impedance.
In accordance with an embodiment of the present disclosure, the first antenna is so that the electronic equipment supports the 5th third-generation mobile communication net
An antenna therein in four antennas corresponding to network；Or at least one antenna is located at the metal of the electronic equipment
On shell, the metal shell includes metal edge frame or metal back cover；Or the electronic equipment is made to support for the 5th generation moved
Four antennas corresponding to dynamic communication network are located on the metal shell of the electronic equipment, and the metal shell is metal edge frame
Or metal back cover, the first antenna belong to four antennas.
In accordance with an embodiment of the present disclosure, the working frequency range of the first antenna further includes at least one second frequency range, wherein
The first antenna supports first frequency range and at least one described second frequency range simultaneously.
In accordance with an embodiment of the present disclosure, at least one described second frequency range includes global position system GPS signal of communication, nothing
Frequency where at least one of line local area network wifi 2.4G signal of communication and WLAN wifi 5.0G signal of communication
Section；And the matching network circuit is initial when being also used to work in the first antenna at least one described second frequency range
Impedance carries out impedance matching, so that the output impedance of the matching network circuit reaches normal impedance.
In accordance with an embodiment of the present disclosure, the matching network circuit includes at least two branches, and each branch is first gone here and there
Join one and hinder logical sub-circuit, then impedance matching sub-circuit of connecting: the logical sub-circuit of resistance is described for allowing or hindering
First frequency range and at least one described one of frequency range of the second frequency range or the corresponding communication signal transmissions of band segment are logical
It crosses；And.The impedance matching sub-circuit is used to hinder together with logical sub-circuit with described, and the output impedance of the branch is matched to
Normal impedance.
In accordance with an embodiment of the present disclosure, the logical sub-circuit of the resistance includes rejector circuit, rejector circuit's packet
Include the LC resonance circuit for being connected on the branch road.
In accordance with an embodiment of the present disclosure, at least two branch includes the first branch and second branch.Described first
It includes GPS rejector circuit that sub-circuit is led in resistance in road, for blocking GPS communication signal to be transmitted through the first branch.
It includes wifi 2.4G rejector circuit that sub-circuit is led in resistance in the second branch, for blocking wifi 2.4G to be transmitted through
The second branch.
In accordance with an embodiment of the present disclosure, the impedance matching sub-circuit in the first branch, including the first low-pass filtering electricity
Road.The cutoff frequency of first low-pass filter circuit is higher than the most high frequency of the working frequency range of the wifi 2.4G signal of communication
Rate, lower than the 5th third generation mobile communication network communication signal frequency band low-limit frequency.
In accordance with an embodiment of the present disclosure, first low-pass filter circuit is first series inductance, then by described first
The load of the road output end circuit in parallel with capacitor.
In accordance with an embodiment of the present disclosure, the output termination multi-pass antenna forwarding switch of the second branch.
Detailed description of the invention
In order to which the disclosure and its advantage is more fully understood, referring now to being described below in conjunction with attached drawing, in which:
Fig. 1 diagrammatically illustrates the block diagram of the electronic equipment according to the embodiment of the present disclosure；
Fig. 2 diagrammatically illustrates the structure for being located at the metal edge frame of electronic equipment according to the first antenna of the embodiment of the present disclosure
Schematic diagram；
Fig. 3 is schematically illustrated in initial impedance illustrated example when first antenna on Smith circle diagram works in different frequent points；
Fig. 4 diagrammatically illustrates the circuit structure diagram of the matching network circuit according to one embodiment of the disclosure；
Fig. 5, which is diagrammatically illustrated, to be hindered according to the first antenna of the embodiment of the present disclosure by the matching network circuit of Fig. 4
Antenna return loss simulation result after anti-matching；And
Fig. 6, which is diagrammatically illustrated, to be carried out according to the first antenna of the embodiment of the present disclosure by the matching network circuit of Fig. 4
Antenna system efficiency simulation result after impedance matching.
Specific embodiment
Hereinafter, will be described with reference to the accompanying drawings embodiment of the disclosure.However, it should be understood that these descriptions are only exemplary
, and it is not intended to limit the scope of the present disclosure.In the following detailed description, to elaborate many specific thin convenient for explaining
Section is to provide the comprehensive understanding to the embodiment of the present disclosure.It may be evident, however, that one or more embodiments are not having these specific thin
It can also be carried out in the case where section.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid
Unnecessarily obscure the concept of the disclosure.
Term as used herein is not intended to limit the disclosure just for the sake of description specific embodiment.It uses herein
The terms "include", "comprise" etc. show the presence of the feature, step, operation and/or component, but it is not excluded that in the presence of
Or add other one or more features, step, operation or component.
There are all terms (including technical and scientific term) as used herein those skilled in the art to be generally understood
Meaning, unless otherwise defined.It should be noted that term used herein should be interpreted that with consistent with the context of this specification
Meaning, without that should be explained with idealization or excessively mechanical mode.
It, in general should be according to this using statement as " at least one in A, B and C etc. " is similar to
Field technical staff is generally understood the meaning of the statement to make an explanation (for example, " system at least one in A, B and C "
Should include but is not limited to individually with A, individually with B, individually with C, with A and B, with A and C, have B and C, and/or
System etc. with A, B, C).Using statement as " at least one in A, B or C etc. " is similar to, generally come
Saying be generally understood the meaning of the statement according to those skilled in the art to make an explanation (for example, " having in A, B or C at least
One system " should include but is not limited to individually with A, individually with B, individually with C, with A and B, have A and C, have
B and C, and/or the system with A, B, C etc.).
The embodiment of the present disclosure provides a kind of electronic equipment.The electronic equipment includes at least one antenna and at least two
The corresponding communication system of different frequency ranges and matching network circuit.At least one antenna includes first antenna, this is first day
The working frequency range of line covers above-mentioned at least two different frequency ranges, which is used for so that the electronic equipment supported for the 5th generation
Mobile communications network.The matching network circuit is for working in the first antenna so that the electronic equipment supports that the 5th generation is mobile
Initial impedance when the first working frequency range of communication network carries out impedance matching, so that the output impedance of the matching network circuit reaches
To normal impedance.The 5th third generation mobile communication network can be supported according to the electronic equipment of the embodiment of the present disclosure.Also, due to first
The working frequency range of antenna covers above-mentioned at least two different frequency ranges, and answering for multiband signal of communication may be implemented in first antenna
With, and then the electronic equipment can be made to support to support 4G, 3G, and/or 2G etc. except the 5th third generation mobile communication network
Communication network signal.
Fig. 1 diagrammatically illustrates the block diagram of the electronic equipment 100 according to the embodiment of the present disclosure.
As shown in Figure 1, the electronic equipment 100 includes at least one antenna 110, matching network circuit 120 and communication system
System 130.At least one antenna 110 may include first antenna 111 (for example, the signal for seeing Fig. 2).The work of first antenna 111
Making frequency range covering can be at least two different frequency range.First antenna 111 is used for so that electronic equipment 100 supports that the 5th generation is mobile
Communication network.At least two different frequency ranges are corresponding from first antenna 111 is supported for communication system 130.Matching network electricity
Road 120 is used to work in first antenna 111 so that electronic equipment 100 supports the first work frequency of the 5th third generation mobile communication network
Initial impedance when section carries out impedance matching, so that the output impedance of matching network circuit 120 reaches normal impedance.
Specifically, when electronic equipment 100 is communicated by the 5th third generation mobile communication network, such as pass through the 5th third-generation mobile communication
When network receives signal, it can be at least one antenna 110 and receive the electromagnetic wave transmitted by the 5th third generation mobile communication network, so
After convert electromagnetic waves into electric signal, the electric signal transmission is by matching network circuit 120, output later to work and the 5th generation
The corresponding communication system 130 of working frequency range where the signal of communication of mobile communications network.
According to the electronic equipment 100 of the embodiment of the present disclosure, the 5th third generation mobile communication network can be supported.Also, due to
The working frequency range of one antenna 111 can cover above-mentioned at least two different frequency ranges, and it is logical that multiband may be implemented in first antenna 111
Believe the multiplexing of signal, and then the electronic equipment 100 can be made to support to support except the 5th third generation mobile communication network
The communication network signals such as 4G, 3G, and/or 2G.
In accordance with an embodiment of the present disclosure, which can be laptop, Ipad, smart phone, intelligent hand
Table or intelligent electric appliance etc..This disclosure is not limited.
In accordance with an embodiment of the present disclosure, first antenna 111 may be such that the electronic equipment 100 supports that the 5th generation is mobile logical
An antenna therein in four antennas corresponding to communication network.Alternatively, in accordance with an embodiment of the present disclosure, at least one antenna
110 are located on the metal shell of electronic equipment 100, which includes metal edge frame or metal back cover.Alternatively, according to this
Disclosed embodiment, so that electronic equipment 100 supports four antennas corresponding to the 5th third generation mobile communication network to set positioned at electronics
On standby 100 metal shell, and the metal shell is metal edge frame or metal back cover, wherein first antenna 111 belongs to this
Four antennas.
Fig. 2 diagrammatically illustrates the metal edge frame for being located at electronic equipment 100 according to the first antenna 111 of the embodiment of the present disclosure
Structural schematic diagram.
Fig. 2 illustrates the view at the back side of electronic equipment 100, specially rear cover be opened after partial assembled structural representation
Figure.In the structure of Fig. 2 signal, first antenna 111 is located on the metal edge frame of electronic equipment 100, connects electronics by elastic slice
The mainboard of equipment 100 realizes transmission of the signal of communication between antenna and mainboard.Matching network circuit can be arranged on mainboard
120 and communication system 130 (invisible due to view direction in Fig. 2).
It is appreciated that the metal edge frame that the first antenna 111 illustrated in Fig. 2 is located at electronic equipment 100 is only that the disclosure is more
The one of which of kind embodiment.
In further embodiments, so that electronic equipment 100 supports four days corresponding to the 5th third generation mobile communication network
Line (including the first antenna 111) can be located at the metal edge frame of electronic equipment 100 not in a manner of being similar to Fig. 2 signal
Same region.For example, the metal edge frame of electronic equipment 100 can be divided into multiple metal segments, each metal segments can be correspondingly arranged
A piece antenna.
In further embodiments, it can also be such that electronic equipment 100 is supported corresponding to the 5th third generation mobile communication network
Four antennas in some antennas by be similar to Fig. 2 signal in a manner of be located at electronic equipment 100 metal edge frame on, other portions
Divided antenna is located on the positions such as the metal back cover of electronic equipment 100.
In accordance with an embodiment of the present disclosure, can be realized on the metal shell (for example, metal edge frame) of electronic equipment 100 to
A few antenna.For example, if electronic equipment 100 be comprehensively screen when, the front of electronic equipment 100 does not have metal or without aperture,
If antenna is mounted on mainboard, to will lead to antenna headroom inadequate, and it is required to realize that electronic equipment 100 communicates on metal edge frame
The problem of the antenna headroom deficiency of comprehensive screen equipment can be effectively relieved in antenna function.
In accordance with an embodiment of the present disclosure, the working frequency range of first antenna 111 further includes at least one second frequency range, wherein the
One antenna 111 supports the first frequency range and at least one second frequency range simultaneously.
Specifically, first antenna 111 can also cover frequency range where the signal of communication in addition to the 5th third generation mobile communication network
Except at least one frequency range, so as to realize antenna (or, metal edge frame) multifrequency multiplexing, antenna can be effectively reduced
Quantity and occupied space.For the antenna of multifrequency multiplexing, the matching network circuit of a multiple working frequency range multiplexings can be designed,
Also the space that matching network occupies can be effectively reduced.
In accordance with an embodiment of the present disclosure, at least one second frequency range include global position system GPS signal of communication, it is wireless
Frequency where at least one of local area network wifi 2.4G signal of communication and WLAN wifi 5.0G signal of communication
Section.Initial impedance when matching network circuit 120 is also used to work in first antenna 111 at least one second frequency range carries out
Impedance matching, so that the output impedance of matching network circuit 120 reaches normal impedance.
Fig. 3 is schematically illustrated in initial impedance diagram when first antenna 111 on Smith circle diagram works in different frequent points
Example.
As shown in figure 3, the curve in Smith circle diagram illustrate that first antenna 111 different frequent points antenna it is initial
One example (being only for example) of impedance information, middle impedance includes resistance and reactance.Wherein, antenna impedance=resistance+j electricity
Anti-, j is imaginary unit.
On curve 1,2,3,4 four point of inverted triangle symbol logo correspond to first antenna 111 work in four it is different
Corresponding antenna initial impedance when working frequency range.Coordinate value in figure is divided by the impedance value after 50.What x-axis indicated is electricity
Resistance, such as the point resistance value that coordinate is 1 in x-axis is 50 Ω, the resistance of 0.15 point is 7.5 Ω.Y-axis is round camber line, with x-axis
It is demarcated as positive and negative, what y-axis coordinate indicated is reactance (such as induction reactance or capacitive reactance.) be divided into equal resistance circle in Smith circle diagram and wait electricity
Anti- circle.
As shown in figure 3, according to one embodiment of the disclosure, frequency point of the first antenna 111 in GPS communication signal
When 1.547868GHz, resistance is 4.276968 Ω, and reactance is -54.161882 Ω.First antenna 111 is communicated in wifi 2.4G
When the frequency point 2.44GHz of signal, resistance is 4.124283 Ω, and reactance is -16.923914 Ω.First antenna 111 is moved in the 5th generation
When the frequency point 3.3GHz of dynamic communication signal, resistance is 7.7..479 Ω, and reactance is 11.709389 Ω.First antenna
111 in the frequency point 5GHz of wifi 5.0G signal of communication, and resistance is 94.25802 Ω, and reactance is 36.561574 Ω.
Matching network circuit 120 matches the initial impedance of first antenna 111, and purpose is exactly when first antenna 111
In corresponding frequency point work, the output resistance of matching network circuit 120 reaches normal impedance (for example, 50 Ω, i.e. resistance reach 50
Ω, reactance 0).In accordance with an embodiment of the present disclosure, when first antenna 111 can cover multiple working frequency range, matching network electricity
The initial impedance that road 120 can be used for working in first antenna 111 different operating frequency range matches, so that matching network is electric
The output impedance on road 120 reaches normal impedance.
Impedance matching can be carried out according to Smith circle diagram, the basic principle is that connecting a reactance element on complex load
Device (inductance or capacitor), series connection will be such that the resistance circle such as edge of the impedance point on Smith circle diagram moves, and parallel connection will make Smith
The conductances circle such as corresponding admittance point edge on circle diagram moves.
According to some embodiments of the present disclosure, the working frequency range of first antenna 111 may include four frequency ranges, four frequencies
Section is specially so that electronic equipment 100 supports the first working frequency range and global positioning system of the 5th third generation mobile communication network
Where in GPS communication signal, WLAN wifi 2.4G signal of communication and WLAN wifi 5.0G signal of communication
Three the second working frequency range of frequency range.The matching network circuit 120 is applied not only to work in so that electronics is set first antenna 111
Standby 100 support initial impedance when the first working frequency range of the 5th third generation mobile communication network to carry out impedance matching, are also used to institute
State the frequency range where first antenna 111 works in ball position system GPS signal of communication, WLAN wifi 2.4G communication is believed
The initial impedance of frequency range where in frequency range and WLAN wifi 5.0G signal of communication where number carries out impedance
Match.
In accordance with an embodiment of the present disclosure, which may include at least two branches, and each branch is first gone here and there
Join one and hinders logical sub-circuit, then impedance matching sub-circuit of connecting.The resistance lead to sub-circuit be for allow or hinder this first
At least one one of frequency range of the second frequency range or the corresponding communication signal transmissions of band segment pass through frequency range with this.The resistance
Anti- matching sub-circuit is used to lead to together with sub-circuit with the resistance, and the output impedance of the branch is matched to normal impedance.By this method,
The matching network circuit 120 plays the role of impedance matching and signal of communication frequency dividing simultaneously.Moreover, according to the implementation of the disclosure
Example, for the signal of communication for the multiple working frequency range being multiplexed in first antenna 111, by being divided at least two after being obstructed
It is matched again after branch, the impedance matching of each road can be made to get up more easily and realized.
In accordance with an embodiment of the present disclosure, it includes rejector circuit which, which leads to sub-circuit, which includes string
It is associated in the LC resonance circuit of the branch road.In this way, it is possible in the case where not increasing antenna volume and quantity, only by several
Capacitor and inductor, realize simultaneously position system GPS signal of communication covering the whole world, WLAN wifi 2.4G signal of communication, with
And the four-in-one antenna of WLAN wifi 5.0G signal of communication and the 5th third generation mobile communication network signal of communication.This
A kind of structure of distribution network circuit 120 can refer to the signal of Fig. 4.
Fig. 4 diagrammatically illustrates the circuit structure diagram of the matching network circuit 401 according to one embodiment of the disclosure.Wherein
Distribution network circuit 120 includes the matching network circuit 401.
Label 111,112,113 and 114 in Fig. 4 is corresponding four antennas of the 5th third generation mobile communication network 5G-NR
With the interface of corresponding matching network circuit, wherein 111 correspond to the interface of first antenna 111.5th third generation mobile communication network
Need four antennas, such as first antenna 111 and other antennas 112,113 and 114.This four antennas can cover
The working frequency range of five third generation mobile communication networks, but other frequency ranges that every antenna is multiplexed in this four antennas can have
Institute is different.This four antenna 111,112,113 requires to connect corresponding pair net according to its working frequency range with each in 114
Network circuit.The matching network circuit 401 of first antenna 111 is illustrated in Fig. 4.Other antennas 112,113 and 114 are respectively corresponding
Matching network circuit (not shown) may be the same or different with matching network circuit 401, with specific reference to antenna 112,
The working frequency range respectively covered in 113 and 114 determines.
As shown in figure 4, the matching network circuit 401 includes the first branch and second branch.The first branch includes series connection
Resistance lead to sub-circuit 411 and impedance matching sub-circuit 412.The second branch includes that concatenated hinder leads to sub-circuit 421 and impedance
With sub-circuit 422.
In accordance with an embodiment of the present disclosure, which, which leads to sub-circuit 411, specifically can be GPS rejector circuit 411, for hindering
Disconnected GPS communication signal is transmitted through the first branch.Sub-circuit 421 is led in resistance in the second branch specifically can be wifi 2.4G
Rejector circuit 421, for blocking wifi 2.4G communication signal transmissions to pass through second branch.In this way, GPS signal will not lead to
The first branch is crossed, wifi 2.4G signal of communication will not be transmitted through second branch.In this way, it is possible to realize to first antenna
The first layer frequency dividing of the signal of communication of 111 multiplexings, so that it is simpler to the progress impedance matching of each branch and signal of communication processing,
Facilitate simplified circuit.
Specifically, for example, in wifi 2.4G rejector circuit 421, the center frequency point of barrier isWherein, the f2Centre frequency corresponding to wifi 2.4G signal of communication.The wifi 2.4G band resistance filter
Wave circuit 421 is connected in second branch, so that the branch is the equal of open circuit for wifi 2.4G signal of communication, thus real
Existing second branch realizes the barrier to wifi 2.4G signal of communication.
Inductance L2nWith capacitor C2pProduct L2n·C2pDetermine the center frequency that wifi 2.4G rejector circuit 421 obstructs
Point.It is understood that different inductance L and capacitor C in combination determine different barrier bandwidth, such as L in circuit design
The center frequency point of=3nH, C=6pF and L=3nH, C=2pF, the formation rejector circuit of this two groups of combinations are equal, but obstruct
Bandwidth it is different.This needs goes to adjust according to specific design object.Therefore, inductance L2nWith capacitor C2pSpecific value also need
It to be determined according to the bandwidth that design requirement in practical application obstructs come specific.
In another example for GPS rejector circuit 411, the center frequency point of barrier isWherein f1
Centre frequency corresponding to GPS communication signal.The GPS rejector circuit 411 is connected in the first branch, so that the first branch
Be the equal of open circuit corresponding to GPS communication signal, therefore the barrier to GPS communication signal may be implemented.
In accordance with an embodiment of the present disclosure, the impedance matching sub-circuit 412 in the first branch includes the first low-pass filter circuit
412.The cutoff frequency of first low-pass filter circuit 412 be higher than wifi2.4G signal of communication working frequency range highest frequency,
Lower than the low-limit frequency of the communication signal frequency band of the 5th third generation mobile communication network.
Specifically, it first connects in the first branch GPS rejector circuit 411, the first low-pass filter circuit of then connecting
412.For the signal of communication for four frequency ranges that first antenna 111 is covered, GPS bandreject filtering electricity is first passed through on the first leg
GPS communication signal is fallen in the barrier of road 411, is then again communicated remaining three working frequency range by the first low-pass filter circuit 412
The 5th third generation mobile communication network signal and the higher wifi 5.0G signal of communication of working frequency range in signal, it is only remaining in this way
2. wifi 2.4G reaches the interface connecting with communication system 130 by the first branch.
In accordance with an embodiment of the present disclosure, which is first series inductance, then by the first branch
The load of the output end circuit in parallel with capacitor.Specifically, which is characterized by, and needs first to pass through
Cross series inductance L4n, then could shunt capacitance C3p, among these include two reasons: the first, first parallel connection C3pThen connect L4n?
It is able to achieve low-pass filter, but for high-frequency signal, by C in parallel3p, signal can be importing directly into ground, Signal Fail, because
This must be using the L that first connects4nIt is obstructed, rear parallel connection C3pIsolated port again reduces the influence to high-frequency signal；The second, exist
On Simith circle diagram, impedance position (refer to Fig. 3) of the first antenna 111 when on the corresponding frequency point of wifi 2.4G is determined pair
It carries out impedance matching can only be using series connection L4nC in parallel3pOr parallel connection L4nConnect C3pBoth modes have low-pass filter
Performance is scheme shown in the first low-pass filter circuit 412 in Fig. 4.
For second branch, since wifi 2.4G rejector circuit 421 has obstructed wifi 2.4G signal of communication,
Impedance matching sub-circuit 422 is then mainly used for working in first antenna 111 the corresponding work of GPS, 5G-NR and wifi 5.0G
Impedance when frequency range is matched, together in conjunction with wifi 2.4G rejector circuit 421, by the output impedance of second branch
It is fitted on normal impedance.
Second branch in Fig. 4 can be transmitted through tri- road signal of communication of GPS, 5G-NR and wifi 5.0G, subsequent communications
Signal separator needs that specific requirements is combined to be divided.For example, in accordance with an embodiment of the present disclosure, 1. the output end of second branch may be used
To connect triplexer.Alternatively, being divided into two-way for example, 1. the output end of second branch can also meet diplexer
It connects switch again afterwards and goes switch operating state etc..
The isolation of GPS rejector circuit 411 and wifi 2.4G rejector circuit 421 in matching network circuit 401
It spends very high.This kind of rejector circuit being made of capacitor and inductor can reach the isolation of 30dB or more in practice,
It is exactly the energy isolation of millesimal rank.But the shortcomings that this rejector circuit, is it is also obvious that isolation bandwidth is insufficient.Instead
For crossing, which influences very little, that is, equivalent capacity or equivalent inductance very little to out of band signal, and being conducive to should
The independent design of network.In the example, GPS and wifi 2.4G bandwidth only has 30MHz and 80MHz respectively, and relative bandwidth only has
2% and 3%, it is very suitable to this kind of rejector circuit.
In accordance with an embodiment of the present disclosure, first antenna 111 can be connected to the matching network circuit such as Fig. 4 by elastic slice
401, it is divided via two LC bandstop filters and carries out impedance matching and obtain wifi 2.4G and all the way GPS WiFi all the way
Then 5G and 5G-NR signal of communication is correspondingly connected with communication system 130, electronic equipment 100 is allowed to support wifi simultaneously
The communication of 2.4G, GPS WiFi tetra- frequency ranges of 5G and 5G-NR.
In accordance with an embodiment of the present disclosure, first antenna 111 can be Monopole.In one embodiment, first antenna
111 length about 19mm (being only for example).Specifically, the length of first antenna 111 depends on the specific environment around antenna, needs
Meet relative position in the antenna initial impedance of Fig. 2 signal.
Fig. 5 diagrammatically illustrates the matching network circuit 401 for passing through Fig. 4 according to the first antenna 111 of the embodiment of the present disclosure
Antenna return loss simulation result after carrying out impedance matching.And Fig. 6 is diagrammatically illustrated according to the embodiment of the present disclosure
First antenna 111 carries out the antenna system efficiency simulation result after impedance matching by the matching network circuit 401 of Fig. 4.
It can be seen that the antenna of the first branch (by wifi 2.4G signal of communication) from the return loss simulation result of Fig. 5
Return loss dramatic decrease at frequency point 2.44Ghz；Second branch (passes through the logical of tri- frequency ranges of GPS, 5G-NR and wifi 5.0G
Believe signal) antenna return loss be less than -8 at GPS frequency point, close to -3 at the frequency point of 5G-NR, in wifi 5.0G frequency point
Place is less than -6.
From the point of view of the antenna system efficiency of Fig. 6, first antenna 111 passes through the matching network circuit 401 of Fig. 4, not at four
The system effectiveness of same working frequency points reaches -6dB or more.
It can be seen that seen from the simulation results, first antenna 111 is imitated by 401 return loss of matching network circuit and system
Rate index is able to satisfy requirement of system design.
According to the embodiment of the present disclosure, which can be formed by the simple combination of capacitor and inductor, Ke Yigeng
It is neatly arranged in the mainboard of electronic equipment 100, and can be realized simultaneously signal frequency split and impedance matching dual function.
It is appreciated that the matching network circuit 401 of Fig. 4 signal is only a variety of implementations of disclosure matching network circuit 120
One of example.When being designed to matching network circuit 401, function corresponding to its each section, design preferences need to be met
Degree is the number for first determining branch, followed by sub-circuit structure is led in the resistance of each branch, for impedance matching of each branch
Circuit part can appropriately adjust.For example, in some embodiments, can be combined by different capacitor and inductors makes a branch
By the way that only by GPS communication signal, another branch passes through other three band communication signals.
In addition, the matching network circuit 401 supports first antenna 111 to support that the 5th generation is mobile in electronic equipment 100 in Fig. 4
The frequency range and global position system GPS signal of communication of communication network, WLAN wifi 2.4G signal of communication and wireless
Four band operations such as the frequency range where in local area network wifi 5.0G signal of communication are only a kind of examples.In practice, according to need
Want the working frequency range of first antenna 111 can be more or less, and the working frequency range of first antenna 111 may include the 5th
The frequency range of third generation mobile communication network and any combination of other communication signal frequency bands.Correspondingly, the design of matching network circuit 401
Corresponding adjustment can occur with the multiplexing frequency range of first antenna 111.
Embodiment of the disclosure provides a kind of electronic equipment 100 that can support the 5th generation communication network, and this public affairs
It opens and is used in the electronic equipment 100 of embodiment so that the electronic equipment 100 supports at least one of the 5th third generation mobile communication network
First antenna 111 in antenna 110 can cover at least two different frequency ranges, so as to realize the more of first antenna 111
Frequency is multiplexed.Further, in accordance with an embodiment of the present disclosure, the matching network electricity of impedance matching is carried out with the first antenna 111
Road, impedance when can be used for working in first antenna 111 at least two different frequency range match.The disclosure is implemented
The electronic equipment 100 of example is directed to the high request of the Combined design of current 5G-NR and 4/3/2G antenna, passes through first antenna 111
With the thinking of matching network circuit 120 or 401, the four-in-one antenna of GPS+wifi 2.4G/5G+5G-NR a kind of is designed.It is logical
This mode is crossed, only by increasing several capacitor and inductors, can realize 5G- in the case where not increasing antenna volume and quantity
The four-in-one antenna of NR antenna and GPS wifi 2.4G/5G.
It will be understood by those skilled in the art that the feature recorded in each embodiment and/or claim of the disclosure can
To carry out multiple combinations and/or combination, even if such combination or combination are not expressly recited in the disclosure.Particularly, exist
In the case where not departing from disclosure spirit or teaching, the feature recorded in each embodiment and/or claim of the disclosure can
To carry out multiple combinations and/or combination.All these combinations and/or combination each fall within the scope of the present disclosure.
Although the disclosure, art technology has shown and described referring to the certain exemplary embodiments of the disclosure
Personnel it should be understood that in the case where the spirit and scope of the present disclosure limited without departing substantially from the following claims and their equivalents,
A variety of changes in form and details can be carried out to the disclosure.Therefore, the scope of the present disclosure should not necessarily be limited by above-described embodiment,
But should be not only determined by appended claims, also it is defined by the equivalent of appended claims.
Claims (10)
1. a kind of electronic equipment, comprising:
At least one antenna, at least one antenna includes first antenna, and the working frequency range covering of the first antenna is at least
Two different frequency ranges, the first antenna is used for so that the electronic equipment supports the 5th third generation mobile communication network；
The corresponding communication system of the frequency range different from described at least two；
Matching network circuit, the matching network circuit is for working in the first antenna so that the electronic equipment is supported
Initial impedance when the first working frequency range of the 5th third generation mobile communication network carries out impedance matching, so that the matching network circuit
Output impedance reach normal impedance.
2. electronic equipment according to claim 1, in which:
The first antenna is so that the electronic equipment supports its in four antennas corresponding to the 5th third generation mobile communication network
In an antenna；Or
At least one antenna is located on the metal shell of the electronic equipment, the metal shell include metal edge frame or
Metal back cover；Or
So that the electronic equipment supports four antennas corresponding to the 5th third generation mobile communication network to be located at the electronic equipment
On metal shell, the metal shell is metal edge frame or metal back cover, and the first antenna belongs to four antennas.
3. electronic equipment according to claim 1, the working frequency range of the first antenna further includes at least one second frequency
Section, wherein the first antenna supports first frequency range and at least one described second frequency range simultaneously.
4. electronic equipment according to claim 3, at least one described second frequency range includes global position system GPS communication
At least one of signal, WLAN wifi 2.4G signal of communication and WLAN wifi 5.0G signal of communication
The frequency range at place；And
The matching network circuit is also used to work in the first antenna initial resistance when at least one described second frequency range
Anti- carry out impedance matching, so that the output impedance of the matching network circuit reaches normal impedance.
5. electronic equipment according to claim 4, wherein the matching network circuit includes at least two branches, each
The branch, which is first connected one, hinders logical sub-circuit, then impedance matching sub-circuit of connecting:
It is described to hinder logical sub-circuit for for allowing or hindering first frequency range and at least one described second frequency range therein one
A frequency range or the corresponding communication signal transmissions of band segment pass through；
The impedance matching sub-circuit is used to hinder together with logical sub-circuit with described, and the output impedance of the branch is matched to standard
Impedance.
6. electronic equipment according to claim 5, wherein the logical sub-circuit of resistance includes rejector circuit, the band
Hindering filter circuit includes the LC resonance circuit for being connected on the branch road.
7. electronic equipment according to claim 6, wherein at least two branch includes the first branch and second
Road:
It includes GPS rejector circuit that sub-circuit is led in resistance in the first branch, for blocking GPS communication signal to be transmitted through
The first branch；And
It includes wifi 2.4G rejector circuit that sub-circuit is led in resistance in the second branch, for blocking wifi 2.4G to transmit
Pass through the second branch.
8. electronic equipment according to claim 7, wherein the impedance matching sub-circuit in the first branch includes:
The cutoff frequency of first low-pass filter circuit, first low-pass filter circuit is higher than the wifi 2.4G signal of communication
Working frequency range highest frequency, lower than the 5th third generation mobile communication network communication signal frequency band low-limit frequency.
9. electronic equipment according to claim 8, wherein first low-pass filter circuit is first series inductance, then
By the load of the first branch output end circuit in parallel with capacitor.
10. electronic equipment according to claim 9, wherein the output termination multi-pass antenna forwarding of the second branch is opened
It closes.
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| CN201811165586.1A CN109273854B (en) | 2018-09-30 | 2018-09-30 | Electronic device |
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| CN111725631A (en) * | 2020-06-30 | 2020-09-29 | 无锡睿勤科技有限公司 | Antenna matching circuit |
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| CN109273854B (en) | 2021-06-15 |
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