CN107317112A - A kind of antenna circuit and mobile terminal - Google Patents
A kind of antenna circuit and mobile terminal Download PDFInfo
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- CN107317112A CN107317112A CN201710482078.5A CN201710482078A CN107317112A CN 107317112 A CN107317112 A CN 107317112A CN 201710482078 A CN201710482078 A CN 201710482078A CN 107317112 A CN107317112 A CN 107317112A
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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
- H01Q5/328—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 between a radiating element and ground
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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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Abstract
The invention provides a kind of antenna circuit and mobile terminal, it is related to mobile terminal antenna technical field.The antenna circuit, including：Antenna element；The frequency range switching circuit being connected with the antenna element, and the frequency range switching circuit is connected to the switching circuit tie point of the antenna element；The frequency range switching circuit realizes the carrier aggregation of low frequency and medium-high frequency.Frequency range switching circuit is set by the switching circuit tie point in antenna element, the carrier aggregation of low frequency and medium-high frequency is realized using the frequency range switching circuit so that there can be the state of low frequency and medium-high frequency simultaneously in synchronization, improve the performance of antenna circuit.
Description
Technical field
The present invention relates to antenna technical field, more particularly to a kind of antenna circuit and mobile terminal.
Background technology
In order to lift the speed of surfing the Internet of mobile terminal, many CA (carrier aggregation) technologies are popularized, such as China Mobile
B39+B41 " intermediate frequency+high frequency " CA combinations, the telecom operators for also having China in the recent period have also been proposed low frequency (0.7~0.96Ghz)
Some frequency range such as B5, with reference to intermediate frequency (1.71~2.17G) such as B1 and B3, constitute " low frequency+intermediate frequency " CA combination.Future, electricity
Operator is believed it is also possible to releasing " low frequency+high frequency " CA combinations.Many CA technical requirements mobile terminal antennas can support this simultaneously
A little frequency ranges, rather than timesharing support before, this brings very big challenge to mobile terminal antenna.
In recent years, integral type all-metal profile is (such as outside the integrated metallic profiles of three-stage, U-shaped gap integration metal
Shape) mobile terminal obtained the favor in market, but this outward appearance also brings very big challenge to antenna, because this outward appearance
Intermediate frequency and high frequency the beamwidth of antenna it is often very narrow.How to realize many CA antennas is the difficulties in industry.
The mobile terminal of integral type all-metal profile, is as shown in Figure 1 the integrated all-metal profile in U-shaped gap, such as Fig. 2 institutes
The integrated all-metal profile of three-stage is shown as, center metal battery cover profile is illustrated in figure 3；Existing antenna scheme such as Fig. 4
It is shown, including：Antenna element 40, the A points of antenna element are the end of antenna element 40, the C points (i.e. distributing point) of antenna element
Connect antenna-matching circuit 41, one end connection antenna feed 42 of antenna-matching circuit 41；The B points of antenna element (switch electricity
Road tie point) connection low frequency/medium-high frequency switching circuit 43, the D electrical connection tuning circuits 44 of antenna element 40, the E of antenna element
Electrical ground；Wherein, (low frequency is 0.7~0.96G, middle height for the switching of low frequency/completion low frequency of medium-high frequency switching circuit 43 and medium-high frequency
Frequency is 1.71~2.69G), implement, have a switch inside it, disconnect, turned on during medium-high frequency during low frequency.Tuning circuit
44 realize tuning in low-frequency range or the tuning in the range of medium-high frequency (1.71~2.69G), have inside it and throw out hilted broadsword more
Close, each switching branches are connected with the devices such as inductance or electric capacity.By switching, low frequency can be achieved to being grounded in different switching branches
Tuning or medium-high frequency tuning, to cover different frequency range demands.For example, when the inside of low frequency/medium-high frequency switching circuit
When switching off, into low frequency tuning state；As shown in figure 5, the conducting covering B12 of switching branches 1 (0.7~0.746G), branch road 2
Conducting covering B5 (0.824~0.894G), the conducting covering B8 of branch road 3 (0.88~0.96G)；When low frequency/medium-high frequency switching circuit
Internal switch conducting when, into medium-high frequency tuning state；Such as the conducting covering B3+B1 of branch road 4 (1.71~2.17G), branch road 5 is led
Logical covering B40+B41 (2.3~2.69G).In general, in the terminal, antenna element A-C length about 5~25mm, A-B
Length about 10~25mm, A-E about 35~55mm, D-E length about 5~25mm.
The mobile terminal antenna of all-metal profile, common antenna scheme two (using Molopole unipole antennas) is such as Fig. 6
It is shown, including：Antenna-matching circuit 61 is connected with antenna element 60, antenna element 60, one end of antenna-matching circuit 61 connects
Connect antenna feed 62；Tuning circuit 63 and low frequency/medium-high frequency switching circuit 64 have been also respectively connected with antenna element 60.Wherein,
Low frequency/medium-high frequency switching circuit 64 complete low frequency and medium-high frequency switching (low frequency is 0.7~0.96G, medium-high frequency is 1.71~
2.69G), implement, have a switch inside it, disconnect, turned on during medium-high frequency during low frequency.Tuning circuit 63 realizes low frequency
In the range of tuning in the range of tuning or medium-high frequency (1.71~2.69G), have a single pole multiple throw inside it, each switch
Branch road is connected with the devices such as inductance or electric capacity.By switching different switching branches to be grounded, can be achieved low frequency tuning or
The tuning of medium-high frequency, to cover different frequency range demands.In general, in the terminal, antenna element 11-12 length about 5
~25mm, 13-14 length about 0~20mm, 11-14 about 30~45mm, 14-15 about 0~20mm.
Either antenna scheme one or antenna scheme two, its drawback are that low frequency and medium-high frequency can not exist simultaneously,
I.e. either synchronization is low frequency, or it is medium-high frequency.The CA states of low frequency+medium-high frequency, especially low frequency+intermediate frequency can not be realized
CA be most difficult to realize.
The content of the invention
The embodiment of the present invention provides a kind of antenna circuit and mobile terminal, low to solve antenna circuit of the prior art
Frequency and medium-high frequency can not exist simultaneously, and synchronization can only be with the presence of a kind of state, it is impossible to realize low frequency and the carrier wave of medium-high frequency
The problem of polymerization.
In a first aspect, the embodiment of the present invention provides a kind of antenna circuit, including：
Antenna element；
The frequency range switching circuit being connected with the antenna element, and the frequency range switching circuit is connected to the antenna element
Switching circuit tie point；
The frequency range switching circuit realizes the carrier aggregation of low frequency and medium-high frequency.
Second aspect, the embodiment of the present invention also provides a kind of mobile terminal, including above-mentioned antenna circuit.
So, in the embodiment of the present invention, by setting frequency range switching circuit, profit in the switching circuit tie point of antenna element
The carrier aggregation of low frequency and medium-high frequency is realized with the frequency range switching circuit so that there can be low frequency simultaneously with synchronization
The state of high frequency, improves the performance of antenna circuit.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed for description of the embodiment of the present invention
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention,
For those of ordinary skill in the art, without having to pay creative labor, it can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 represents the mobile terminal structure schematic diagram of the integrated all-metal profile in U-shaped gap；
Fig. 2 represents the mobile terminal structure schematic diagram of the integrated all-metal profile of three-stage；
Fig. 3 represents the mobile terminal structure schematic diagram of center metal battery cover profile；
Fig. 4 represents one of composition schematic diagram of antenna structure；
Fig. 5 represents the composition schematic diagram of tuning circuit；
Fig. 6 represents the two of the composition schematic diagram of antenna structure；
Fig. 7 represents one of structural representation of antenna circuit of the embodiment of the present invention；
Fig. 8 represents the two of the structural representation of the antenna circuit of the embodiment of the present invention；
Fig. 9 represents the three of the structural representation of the antenna circuit of the embodiment of the present invention；
Figure 10 is many CA of low frequency B5+ intermediate frequency B1+ intermediate frequencies B3 antenna efficiency comparison diagram；
Figure 11 is many CA of B13+B40 antenna efficiency comparison diagram；
Figure 12 is the B8 of non-CA states antenna efficiency comparison diagram；
Figure 13 is the B5 of non-CA states antenna efficiency comparison diagram；
Figure 14 represents the four of the structural representation of the antenna circuit of the embodiment of the present invention；
Figure 15 represents the structural representation of the mobile terminal of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Into ground description, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in fig. 7, one embodiment of the invention provides a kind of antenna circuit, including：
Antenna element 710；
The frequency range switching circuit 720 being connected with the antenna element 710, and the frequency range switching circuit 720 is connected to institute
State the switching circuit tie point B of antenna element 710；
The frequency range switching circuit 720 realizes the carrier aggregation of low frequency and medium-high frequency.
Alternatively, the first constituted mode of the frequency range switching circuit 720 is：
The frequency range switching circuit 720, including：
High-pass filtering circuit, one end of the high-pass filtering circuit and the switching circuit tie point of the antenna element 710
Connection, the other end ground connection of the high-pass filtering circuit；
Wherein, the high-pass filtering circuit is used for the carrier aggregation for realizing low frequency and medium-high frequency.
Specifically, as shown in figure 8, the high-pass filtering circuit mainly includes：
First inductance 721, the first electric capacity 722 and the second inductance 723；
Wherein, the first end of first inductance 721 is connected with the first end of first electric capacity 722, and described
With the of second inductance 723 at the tie point that the first end of one inductance 721 is connected with the first end of first electric capacity 722
One end is connected；Second end of first inductance 721 is connected with the second end of first electric capacity 722, and in the described first electricity
It is grounded at the tie point that second end of sense 721 is connected with the second end of first electric capacity 722；The of second inductance 723
Two ends are connected with the switching circuit tie point B of the antenna element 710.
It should be noted that in such a implementation, in the first inductance 721, the first electric capacity 722 and the second inductance 723
At least one of be adjustable device, i.e., inductance be controllable impedance, electric capacity is tunable capacitor；In specific application, typically only need by
Electric capacity (the first i.e. above-mentioned electric capacity 722) is arranged to tunable capacitor, the different capacitance of different frequency range correspondences, such as B5
When (824~894M), capacitance C=3pf；During B8 (880~960M), capacitance C=2.4pf；During B12 (699~746M), electricity
Capacitance C=4.3pf.I.e. by the resonant frequency for the antiresonant circuit for adjusting the first inductance 721 and the first electric capacity 722 so that
High resistant characteristic is presented in corresponding low-frequency range.In order to further improve intermediate frequency characteristics, by inductance (the second i.e. above-mentioned electricity of series connection
Such as 723) sense is also changed to controllable impedance, during B3 (1.71~1.88G), inductance value L=4.7nH；During B1 (1.92~2.17G),
Inductance value L=3.9nH.
Alternatively, second of constituted mode of the frequency range switching circuit 720 is：
The frequency range switching circuit 720, including：
High-pass filtering circuit, one end of the high-pass filtering circuit and the switching circuit tie point of the antenna element 710
Connection, the other end ground connection of the high-pass filtering circuit；
Wherein, the high-pass filtering circuit is used for the carrier aggregation for realizing low frequency and medium-high frequency；
Switching switch；
The first end of the switching switch is connected with the switching circuit tie point of the antenna element, the switching switch
Second end is connected with one end of the high-pass filtering circuit.
Specifically, as shown in figure 9, the main composition of the frequency range switching circuit 720 under such a constituted mode is：
First inductance 721, the first electric capacity 722, the second inductance 723 and switching switch 724；
Wherein, the first end of first inductance 721 is connected with the first end of first electric capacity 722, and described
With the of second inductance 723 at the tie point that the first end of one inductance 721 is connected with the first end of first electric capacity 722
One end is connected；Second end of first inductance 721 is connected with the second end of first electric capacity 722, and in the described first electricity
It is grounded at the tie point that second end of sense 721 is connected with the second end of first electric capacity 722；The of second inductance 723
Two ends are connected with the switching circuit tie point of the antenna element 710；The first end and the antenna list of the switching switch 724
The switching circuit tie point connection of member 710, the second end and the second end of second inductance 723 of the switching switch 724 connect
Connect.
Foregoing circuit is in use, when low frequency+medium-high frequency CA states, switching switch 724 is turned on；High-pass filtering circuit exists
Open circuit is presented in a certain frequency range (such as B5) of low frequency, it is achieved thereby that low frequency, while ensure that medium-high frequency is still turned on, high frequency signal
By influenceing very little.When non-CA low frequency state, switching switch 724 disconnects, so as to eliminate high-pass filtering circuit because arrowband
The low-frequency effects that characteristic is brought.When non-CA medium-high frequency state, switching switch 724 is turned on, and high-pass filtering circuit is now equivalent
In medium-high frequency conducting, high frequency signal is by influenceing very little.
In addition, this frequency range switching circuit 720 has special requirement：Conducting is presented in medium-high frequency, and open circuit is presented in low frequency.Common
High-pass filtering circuit characteristic is：Medium-high frequency is turned on, but low frequency is shorted to ground.
Devised in the present embodiment a kind of new circuit structure, i.e. the first inductance 721, the first electric capacity 722 constitute it is in parallel humorous
Shaken circuit, and resonant frequency range can be (0.7~0.96G), realizes the characteristic of low frequency open circuit, and medium-high frequency is now equivalent to
Electric capacity, then series resonant circuit is constituted with the second inductance 723, resonant frequency range can be (1.71~2.69G), so as to realize
The characteristic of medium-high frequency short circuit.
It should be noted that in this kind of implementation, each part is nonadjustable in high-pass filtering circuit, that is, is used
Fixed value；(wherein, the inductance value of the first inductance 721 is represented each part with L1, the electricity of the first electric capacity 722 in high-pass filtering circuit
Capacitance represents that the inductance value of the second inductance 723 is represented with L2 with C1) value can have multiple combinations, for example：Combine 1 (L1=
18nH, C1=1.8pf, L2=5.6nH), 2 (L1=12nH, C1=2.7pf, L2=4.7nH) are combined, 3 (L1=are combined
8.2nH, C1=3.9pf, L2=3.9nH).Combination 1 has more preferable low frequency performance, but medium-high frequency poor performance, and combination 3 has
More preferable medium-high frequency performance, but low frequency performance is not good enough, and by attempting, optimum value is combination 2.Such as table 1, (table 1 represents combination 1,2,3
The equivalent inductance value or capacitance for each frequency commonly used respectively in mobile terminal) shown in, exist respectively for combination 1, combination 2 and combination 3
The equivalent inductance value or capacitance of the conventional each frequency of mobile terminal.Understand, this circuit has frequency response narrow-band characteristic, example
Such as, in the range of 0.824~0.88Ghz, inductance value is very big, can be considered open circuit.But 0.7~0.824G inductance value is with frequency
Reduction is gradually reduced, and can not be gradually considered as complete open circuit, still be had a certain impact；0.88~0.96G capacitance with frequencies
Increase is stepped up, and can not be considered as complete open circuit, still be had a certain impact.In addition, medium-high frequency part (1.71~2.69G)
Inductance value between 0.3~3.4nH, medium-high frequency is had a certain impact with the increase of frequency.
Table 1
It should be noted that because actual high-pass filtering circuit has obvious narrow-band characteristic, therefore add switching and open
724 are closed, switching switch 724 can improve the bandwidth that high-pass filtering circuit can actually reach.
During below with each part in high-pass filtering circuit from combination 2, the test result to antenna efficiency is described as follows：
As shown in Figure 10, be low frequency B5 (0.824~0.894G)+intermediate frequency B1 (1.92~2.17G)+intermediate frequency B3 (1.71~
1.88G) many CA antenna efficiency comparison diagram, increase high-pass filtering circuit after, generate low frequency B5 efficiency (- 7.8dB~-
12dB, original efficiency is less than -22dB), the efficiency of intermediate frequency 1.71~2.17 is declined slightly, and high frequency efficiency 2.3~2.69G efficiency is carried
Rise.
As shown in figure 11, it is B13 (0.746~0.787G)+B40 (2.3~2.4G) many CA antenna efficiency comparison diagram, increases
Increase after bandpass filter circuit, generate low frequency B13 efficiency (- 7.5dB~-9.5dB, original efficiency is less than -22dB), high frequency
B40 efficiency variance very littles.
As shown in figure 12, be non-CA states B8 (0.88~0.96G) antenna efficiency comparison diagram.Increase high-pass filtering electricity
0.5~1dB of Lu Hou, B8 improved efficiency, because high-pass filtering circuit causes low frequency that open circuit effect is presented, is reduced out
The influence of the parasitic parameter (such as parasitic capacitance) of pass.But, medium-high frequency efficiency is too low, and medium-high frequency is unavailable.
As shown in figure 13, it is the antenna efficiency comparison diagram of non-CA states B5 (0.824~0.894G).Increase high-pass filtering electricity
0.5~1dB of Lu Hou, B5 improved efficiency.Because high-pass filtering circuit causes low frequency that open circuit effect is presented, reduce out
The influence of the parasitic parameter (such as parasitic capacitance) of pass.But, medium-high frequency efficiency is too low, and medium-high frequency is unavailable.
Alternatively, the third constituted mode of the frequency range switching circuit 720 is：
The frequency range switching circuit 720, including：
High-pass filtering circuit, one end of the high-pass filtering circuit and the switching circuit tie point of the antenna element 710
Connection, the other end ground connection of the high-pass filtering circuit；
Wherein, the high-pass filtering circuit is used for the carrier aggregation for realizing low frequency and medium-high frequency.
The high-pass filtering circuit mainly includes：Broad-band phase shifter；
Wherein, the first end of the broad-band phase shifter is connected with the switching circuit tie point of the antenna element 710, described
The second end ground connection of broad-band phase shifter.
It should be noted that carrying out the phase adjustment of low frequency and medium-high frequency using the broad-band phase shifter, high pass filter is reduced
The complexity that wave circuit is realized, it is possible to achieve the carrier aggregation of low frequency and medium-high frequency.
For example, having 90 degree of low frequency phase shift, the broad-band phase shifter product of medium-high frequency phase shift 180 degree in industry at present.Broadband is moved
Phase device is generally used for phase adjustment, but is used for doing high-pass filter here.One end of this broad-band phase shifter need to be only grounded, now
Open circuit is presented in low frequency after 90 degree of phase shift, and medium-high frequency phase shift 180 degree is still shorted to ground.
It should be noted that in several constituted modes of above-mentioned frequency range switching circuit 720, the antenna circuit is wrapped
Include：
Antenna-matching circuit 731；
The first end of the antenna-matching circuit 731 and the distributing point (the C points i.e. in figure) of the antenna element 710 connect
Connect, the second end of the antenna-matching circuit 731 is connected with antenna feed 732；And
The coordination circuits 740 being connected with the antenna element, the coordination circuits 740 are connected to the D points in figure；
The coordination circuits 740 include：Second switch 741, the 4th inductance 742 and the second electric capacity 743；
Wherein, the first end of the 4th inductance 742 is connected with the first end of second electric capacity 743, and described
It is grounded at the tie point that the first end of four inductance 742 is connected with the first end of second electric capacity 743, the second switch 741
First end be connected with the antenna element 710, the second end of the second switch 741 is used for and the 4th inductance 742
Second end connects or is connected with the second end of second electric capacity 743.
It should be noted that in several constituted modes of above-mentioned frequency range switching circuit 720, the antenna circuit is application
Antenna circuit in the mobile terminal of integral type all-metal profile, the A points of the antenna circuit are expressed as the end of antenna element,
E points are grounded.
Alternatively, the 4th kind of constituted mode of the frequency range switching circuit 720 is：
As shown in figure 14, on the basis of second above-mentioned of constituted mode, in addition to：
Medium-high frequency tuning circuit 750；
The medium-high frequency tuning circuit 750 includes：3rd inductance 751 and first switch 752；
Wherein, the first end of the first switch 752 is connected with the first end of the switching switch 724, and described first opens
The second end for closing 752 is connected with the first end of the 3rd inductance 751, the second end and the switching of the 3rd inductance 751
The second end connection of switch 724.
In this case, low frequency tuber function is only retained in coordination circuits.In order to realize many CA, this medium-high frequency tuning electricity
Road also should be by high-pass filtering circuit, and now D and B can be connected to same point, and B to A distance is still 10~25mm
Left and right.
It should be noted that using the mobile terminal of Molopole unipole antenna forms antenna circuit implementation with
It is identical using the realization principle of the implementation of the antenna circuit of the mobile terminal of integral type all-metal profile, herein no longer
Repeat.
It should be noted that the antenna circuit can realize the carrier aggregation of low frequency and medium-high frequency simultaneously so that same
Moment can have the state of low frequency and medium-high frequency simultaneously, improve the performance of antenna circuit.
One embodiment of the invention also provides a kind of mobile terminal, including above-mentioned antenna circuit.
The mobile terminal includes at least one in mobile phone, tablet personal computer, personal digital assistant and vehicle-mounted computer.
It should be noted that being provided with the mobile terminal of the antenna circuit, the communication performance of mobile terminal is improved, is improved
The usage experience of user.
Figure 15 is the structural representation of the mobile terminal of the embodiment of the present invention.Specifically, the mobile terminal in Figure 15 can be with
For mobile phone, tablet personal computer, personal digital assistant (Personal Digital Assistant, PDA) or vehicle-mounted computer etc..
Mobile terminal in Figure 15 includes radio frequency (Radio Frequency, RF) circuit 1510, memory 1520, input
Unit 1530, display unit 1540, processor 1550, voicefrequency circuit 1560, WiFi (Wireless Fidelity) module
1570th, power supply 1580 and battery connector 1590.
Wherein, input block 1530 can be used for the numeral or character information of reception user's input, and produce and mobile whole
The signal input that the user at end is set and function control is relevant.Specifically, in the embodiment of the present invention, the input block 1530 can
With including contact panel 1531.Contact panel 1531, also referred to as touch-screen, collect touch operation of the user on or near it
(such as user uses the operations of any suitable object or annex on contact panel 1531 such as finger, stylus), and according to pre-
The formula first set drives corresponding attachment means.Optionally, contact panel 1531 may include touch detecting apparatus and touch to control
Two parts of device processed.Wherein, touch detecting apparatus detects the touch orientation of user, and detects the signal that touch operation is brought, will
Signal sends touch controller to；Touch controller receives touch information from touch detecting apparatus, and is converted into contact
Coordinate, then give the processor 1550, and the order sent of reception processing device 1550 and can be performed.Furthermore, it is possible to using
The polytypes such as resistance-type, condenser type, infrared ray and surface acoustic wave realize contact panel 1531.Except contact panel 1531,
Input block 1530 can also include other input equipments 1532, and other input equipments 1532 can include but is not limited to secondary or physical bond
One or more in disk, function key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc..
Wherein, display unit 1540 can be used for information and the movement for showing the information inputted by user or being supplied to user
The various menu interfaces of terminal.Display unit 1540 may include display panel 1541, optionally, can use LCD or organic hairs
The forms such as optical diode (Organic Light-Emitting Diode, OLED) configure display panel 1541.
It should be noted that contact panel 1531 can cover display panel 1541, touch display screen is formed, when the touch display screen
Detect after the touch operation on or near it, processor 1550 is sent to determine the type of touch event, with post processing
Device 1550 provides corresponding visual output according to the type of touch event in touch display screen.
Touch display screen includes Application Program Interface viewing area and conventional control viewing area.The Application Program Interface viewing area
And arrangement mode of the conventional control viewing area is not limited, can be arranged above and below, left-right situs etc. can distinguish two and show
Show the arrangement mode in area.The Application Program Interface viewing area is displayed for the interface of application program.Each interface can be with
The interface element such as the icon comprising at least one application program and/or widget desktop controls.The Application Program Interface viewing area
It can also be the empty interface not comprising any content.The conventional control viewing area is used to show the higher control of utilization rate, for example,
Application icons such as settings button, interface numbering, scroll bar, phone directory icon etc..
Wherein processor 1550 is the control centre of mobile terminal, utilizes each of various interfaces and connection whole mobile phone
Individual part, by operation or performs and is stored in software program and/or module in first memory 1521, and calls and be stored in
Data in second memory 1522, perform the various functions and processing data of mobile terminal, so as to be carried out to mobile terminal whole
Body is monitored.Optionally, processor 1550 may include one or more processing units.
It should be noted that radio frequency (Radio Frequency, RF) circuit 1510 includes：Antenna element；
The frequency range switching circuit being connected with the antenna element, and the frequency range switching circuit is connected to the antenna element
Switching circuit tie point；
The frequency range switching circuit realizes the carrier aggregation of low frequency and medium-high frequency.
Specifically, the frequency range switching circuit, including：
High-pass filtering circuit, one end of the high-pass filtering circuit and the switching circuit tie point of the antenna element connect
Connect, the other end ground connection of the high-pass filtering circuit；
Wherein, the high-pass filtering circuit is used for the carrier aggregation for realizing low frequency and medium-high frequency.
Specifically, the high-pass filtering circuit, including：
First inductance, the first electric capacity and the second inductance；
Wherein, the first end of first inductance is connected with the first end of first electric capacity, and in first inductance
The tie point that is connected with the first end of first electric capacity of first end at be connected with the first end of second inductance；Described
Second end of one inductance is connected with the second end of first electric capacity, and at the second end of first inductance and the described first electricity
It is grounded at the tie point for the second end connection held；Second end of second inductance is connected with the switching circuit of the antenna element
Point connection.
Wherein, at least one in first inductance, first electric capacity and second inductance is adjustable device.
Specifically, the frequency range switching circuit, in addition to：
Switching switch；
The first end of the switching switch is connected with the switching circuit tie point of the antenna element, the switching switch
Second end is connected with one end of the high-pass filtering circuit.
Alternatively, radio frequency (Radio Frequency, the RF) circuit 1510 also includes：
Medium-high frequency tuning circuit；
The medium-high frequency tuning circuit includes：3rd inductance and first switch；
Wherein, the first end of the first switch is connected with the first end of the switching switch, and the of the first switch
Two ends are connected with the first end of the 3rd inductance, and the second end of the 3rd inductance and the second end of the switching switch connect
Connect.
Specifically, the high-pass filtering circuit includes：
Broad-band phase shifter；
Wherein, the first end of the broad-band phase shifter is connected with the switching circuit tie point of the antenna element, the width
The second end ground connection with phase shifter.
Specifically, radio frequency (Radio Frequency, the RF) circuit 1510 also includes：
Antenna-matching circuit；
The first end of the antenna-matching circuit is connected with the distributing point of the antenna element, the antenna-matching circuit
Second end is connected with antenna feed.
Specifically, radio frequency (Radio Frequency, the RF) circuit 1510 also includes：
The coordination circuits being connected with the antenna element；
The coordination circuits include：Second switch, the 4th inductance and the second electric capacity；
Wherein, the first end of the 4th inductance is connected with the first end of second electric capacity, and in the 4th inductance
The tie point that is connected with the first end of second electric capacity of first end at be grounded, the first end of the second switch and the day
Line unit is connected, the second end of the second switch be used to be connected with the second end of the 4th inductance or with second electric capacity
The second end connection.
The mobile terminal of the embodiment of the present invention, sets frequency range to switch electricity by the switching circuit tie point in antenna element
Road, the carrier aggregation of low frequency and medium-high frequency is realized using the frequency range switching circuit so that antenna circuit can be same in synchronization
When there is the state of low frequency and medium-high frequency, improve the performance of antenna circuit, and then improve the communication performance of mobile terminal, carry
The high usage experience of user.
Each embodiment in this specification is described by the way of progressive, what each embodiment was stressed be with
Between the difference of other embodiment, each embodiment identical similar part mutually referring to.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can be provided as method, device or calculate
Machine program product.Therefore, the embodiment of the present invention can using complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can use it is one or more wherein include computer can
With in the computer-usable storage medium (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention is with reference to method according to embodiments of the present invention, terminal device (system) and computer program
The flow chart and/or block diagram of product is described.It should be understood that can be by computer program instructions implementation process figure and/or block diagram
In each flow and/or square frame and the flow in flow chart and/or block diagram and/or the combination of square frame.These can be provided
Computer program instructions are set to all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to produce a machine so that held by the processor of computer or other programmable data processing terminal equipments
Capable instruction is produced for realizing in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames
The device for the function of specifying.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing terminal equipments
In the computer-readable memory worked in a specific way so that the instruction being stored in the computer-readable memory produces bag
The manufacture of command device is included, the command device is realized in one flow of flow chart or multiple flows and/or one side of block diagram
The function of being specified in frame or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing terminal equipments so that
Series of operation steps is performed on computer or other programmable terminal equipments to produce computer implemented processing, so that
The instruction performed on computer or other programmable terminal equipments is provided for realizing in one flow of flow chart or multiple flows
And/or specified in one square frame of block diagram or multiple square frames function the step of.
Although having been described for the preferred embodiment of the embodiment of the present invention, those skilled in the art once know base
This creative concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to
Including preferred embodiment and fall into having altered and changing for range of embodiment of the invention.
It should also be noted that, herein, such as first and second or the like relational terms are used merely to one
Entity or operation make a distinction with another entity or operation, and not necessarily require or imply between these entities or operation
There is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to contain
Lid nonexcludability is included, so that process, method, article or terminal device including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include be this process, method, article or
The intrinsic key element of terminal device.In the absence of more restrictions, the key element limited by sentence "including a ...", and
It is not precluded within the process including the key element, method, article or terminal device and also there is other identical element.
Above-described is the preferred embodiment of the present invention, it should be pointed out that come for the ordinary person of the art
Say, some improvements and modifications can also be made under the premise of principle of the present invention is not departed from, and these improvements and modifications also exist
In protection scope of the present invention.
Claims (11)
1. a kind of antenna circuit, it is characterised in that including：
Antenna element；
The frequency range switching circuit being connected with the antenna element, and the frequency range switching circuit is connected to cutting for the antenna element
Change circuit connection point；
The frequency range switching circuit realizes the carrier aggregation of low frequency and medium-high frequency.
2. antenna circuit according to claim 1, it is characterised in that the frequency range switching circuit, including：
High-pass filtering circuit, one end of the high-pass filtering circuit is connected with the switching circuit tie point of the antenna element, institute
State the other end ground connection of high-pass filtering circuit；
Wherein, the high-pass filtering circuit is used for the carrier aggregation for realizing low frequency and medium-high frequency.
3. antenna circuit according to claim 2, it is characterised in that the high-pass filtering circuit, including：
First inductance, the first electric capacity and the second inductance；
Wherein, the first end of first inductance is connected with the first end of first electric capacity, and the of first inductance
First end at the tie point that one end is connected with the first end of first electric capacity with second inductance is connected；First electricity
Second end of sense is connected with the second end of first electric capacity, and at the second end of first inductance and first electric capacity
It is grounded at the tie point of second end connection；Second end of second inductance connects with the switching circuit tie point of the antenna element
Connect.
4. antenna circuit according to claim 3, it is characterised in that first inductance, first electric capacity and described
At least one in second inductance is adjustable device.
5. antenna circuit according to claim 2, it is characterised in that the frequency range switching circuit, in addition to：
Switching switch；
The first end of the switching switch is connected with the switching circuit tie point of the antenna element, and the second of the switching switch
End is connected with one end of the high-pass filtering circuit.
6. antenna circuit according to claim 5, it is characterised in that also include：
Medium-high frequency tuning circuit；
The medium-high frequency tuning circuit includes：3rd inductance and first switch；
Wherein, the first end of the first switch is connected with the first end of the switching switch, the second end of the first switch
It is connected with the first end of the 3rd inductance, the second end of the 3rd inductance is connected with the second end of the switching switch.
7. antenna circuit according to claim 2, it is characterised in that the high-pass filtering circuit includes：
Broad-band phase shifter；
Wherein, the first end of the broad-band phase shifter is connected with the switching circuit tie point of the antenna element, and the broadband is moved
The second end ground connection of phase device.
8. antenna circuit according to claim 1, it is characterised in that also include：
Antenna-matching circuit；
The first end of the antenna-matching circuit is connected with the distributing point of the antenna element, and the second of the antenna-matching circuit
End is connected with antenna feed.
9. antenna circuit according to claim 1, it is characterised in that also include：
The coordination circuits being connected with the antenna element；
The coordination circuits include：Second switch, the 4th inductance and the second electric capacity；
Wherein, the first end of the 4th inductance is connected with the first end of second electric capacity, and the of the 4th inductance
It is grounded at the tie point that one end is connected with the first end of second electric capacity, the first end of the second switch and the antenna list
Member connection, the second end of the second switch is used to be connected with the second end of the 4th inductance or the with second electric capacity
Two ends are connected.
10. a kind of mobile terminal, it is characterised in that including antenna circuit as claimed in any one of claims 1-9 wherein.
11. mobile terminal according to claim 10, it is characterised in that the mobile terminal include mobile phone, tablet personal computer,
At least one of in personal digital assistant and vehicle-mounted computer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710482078.5A CN107317112B (en) | 2017-06-22 | 2017-06-22 | Antenna circuit and mobile terminal |
| PCT/CN2018/087639 WO2018233421A1 (en) | 2017-06-22 | 2018-05-21 | Antenna circuit and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710482078.5A CN107317112B (en) | 2017-06-22 | 2017-06-22 | Antenna circuit and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
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| CN107317112A true CN107317112A (en) | 2017-11-03 |
| CN107317112B CN107317112B (en) | 2020-04-17 |
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| CN201710482078.5A Active CN107317112B (en) | 2017-06-22 | 2017-06-22 | Antenna circuit and mobile terminal |
Country Status (2)
| Country | Link |
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| CN (1) | CN107317112B (en) |
| WO (1) | WO2018233421A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110423A (en) * | 2017-12-14 | 2018-06-01 | 广东欧珀移动通信有限公司 | Antenna tuning circuit, antenna assembly and mobile terminal |
| CN108336509A (en) * | 2018-02-07 | 2018-07-27 | 广东欧珀移动通信有限公司 | Antenna module, electronic equipment and method of controlling antenna |
| CN108336483A (en) * | 2018-02-02 | 2018-07-27 | 广东欧珀移动通信有限公司 | Antenna module, electronic equipment and antenna switching method |
| WO2018233421A1 (en) * | 2017-06-22 | 2018-12-27 | 维沃移动通信有限公司 | Antenna circuit and mobile terminal |
| CN109687111A (en) * | 2018-12-29 | 2019-04-26 | 维沃移动通信有限公司 | A kind of antenna structure and communication terminal |
| CN114006181A (en) * | 2019-02-18 | 2022-02-01 | 荣耀终端有限公司 | Tuning device, antenna device and terminal equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140355497A1 (en) * | 2013-05-29 | 2014-12-04 | Nokia Corporation | Band grouping combinations for tunable umts multi-band filters |
| CN104485512A (en) * | 2014-11-28 | 2015-04-01 | 深圳市信维通信股份有限公司 | LTE (Long Term Evolution) carrier aggregation antenna for portable type equipment with metal framework |
| CN104505589A (en) * | 2014-12-10 | 2015-04-08 | 深圳市信维通信股份有限公司 | LTE (Long Term Evolution) carrier aggregation antenna of portable equipment with full-metal shell |
| CN105897280A (en) * | 2016-04-08 | 2016-08-24 | 广东欧珀移动通信有限公司 | Antenna tuning circuit and mobile terminal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317112B (en) * | 2017-06-22 | 2020-04-17 | 维沃移动通信有限公司 | Antenna circuit and mobile terminal |
-
2017
- 2017-06-22 CN CN201710482078.5A patent/CN107317112B/en active Active
-
2018
- 2018-05-21 WO PCT/CN2018/087639 patent/WO2018233421A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140355497A1 (en) * | 2013-05-29 | 2014-12-04 | Nokia Corporation | Band grouping combinations for tunable umts multi-band filters |
| CN104485512A (en) * | 2014-11-28 | 2015-04-01 | 深圳市信维通信股份有限公司 | LTE (Long Term Evolution) carrier aggregation antenna for portable type equipment with metal framework |
| CN104505589A (en) * | 2014-12-10 | 2015-04-08 | 深圳市信维通信股份有限公司 | LTE (Long Term Evolution) carrier aggregation antenna of portable equipment with full-metal shell |
| CN105897280A (en) * | 2016-04-08 | 2016-08-24 | 广东欧珀移动通信有限公司 | Antenna tuning circuit and mobile terminal |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018233421A1 (en) * | 2017-06-22 | 2018-12-27 | 维沃移动通信有限公司 | Antenna circuit and mobile terminal |
| CN108110423A (en) * | 2017-12-14 | 2018-06-01 | 广东欧珀移动通信有限公司 | Antenna tuning circuit, antenna assembly and mobile terminal |
| WO2019114622A1 (en) * | 2017-12-14 | 2019-06-20 | Oppo广东移动通信有限公司 | Antenna tuning circuit, antena apparatus and mobile terminal |
| CN108110423B (en) * | 2017-12-14 | 2020-03-10 | Oppo广东移动通信有限公司 | Antenna tuning circuit, antenna device and mobile terminal |
| CN108336483A (en) * | 2018-02-02 | 2018-07-27 | 广东欧珀移动通信有限公司 | Antenna module, electronic equipment and antenna switching method |
| CN108336509A (en) * | 2018-02-07 | 2018-07-27 | 广东欧珀移动通信有限公司 | Antenna module, electronic equipment and method of controlling antenna |
| CN109687111A (en) * | 2018-12-29 | 2019-04-26 | 维沃移动通信有限公司 | A kind of antenna structure and communication terminal |
| WO2020135046A1 (en) * | 2018-12-29 | 2020-07-02 | 维沃移动通信有限公司 | Antenna structure and communication terminal |
| CN114006181A (en) * | 2019-02-18 | 2022-02-01 | 荣耀终端有限公司 | Tuning device, antenna device and terminal equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018233421A1 (en) | 2018-12-27 |
| CN107317112B (en) | 2020-04-17 |
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