CN108900217A - Tuning circuit, radio circuit and electronic equipment - Google Patents
Tuning circuit, radio circuit and electronic equipment Download PDFInfo
- Publication number
- CN108900217A CN108900217A CN201810759353.8A CN201810759353A CN108900217A CN 108900217 A CN108900217 A CN 108900217A CN 201810759353 A CN201810759353 A CN 201810759353A CN 108900217 A CN108900217 A CN 108900217A
- Authority
- CN
- China
- Prior art keywords
- switch
- variable capacitance
- output end
- tuning circuit
- input terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Transceivers (AREA)
Abstract
The embodiment of the present application provides a kind of tuning circuit, radio circuit and electronic equipment, the tuning circuit：Variable capacitance, including an input terminal and an output end, the input terminal of the variable capacitance are used for connecting signal source, and the output end of the variable capacitance is for connecting antenna radiator；First switch is connect with the input, output end of the variable capacitance；Second switch, the input terminal connect and ground with the variable capacitance；Third switch, the output end connect and ground with the variable capacitance；4th switch, the output end connect and ground with the variable capacitance.The tuning circuit can be according to the capacitance and first switch, second switch, third switch of variable capacitance, the state of the 4th switch come the radiofrequency signal of tuning operation different frequency, so as to improve the diversity of electronic equipment communications band.
Description
Technical field
This application involves field of communication technology, in particular to a kind of tuning circuit, radio circuit and electronic equipment.
Background technique
With the development of communication technology, the communications band that the electronic equipments such as smart phone can be supported is more and more.
For example, LTE (Long Term Evolution, long term evolution) signal of communication may include frequency 700MHz to 2700MHz it
Between radiofrequency signal.
The radiofrequency signal that electronic equipment can be supported can be divided into low frequency signal, intermediate-freuqncy signal and high-frequency signal.Wherein, low
Frequency signal, intermediate-freuqncy signal and high-frequency signal respectively include multiple sub-band signals again.Each sub-band signals require to pass through
Antenna is emitted to the external world.
Currently, the frequency resource of each Communications Market in the whole world is different.The common carrier of different zones possesses difference
Communication spectrum distribution, therefore also there is the communication requirement of a variety of different frequency range radiofrequency signals.However, current electronic device energy
The communications band lack of diversity being enough tuned out, is unable to satisfy the demand.
Summary of the invention
The embodiment of the present application provides a kind of tuning circuit, radio circuit and electronic equipment, and electronic equipment communication can be improved
The diversity of frequency range.
The embodiment of the present application provides a kind of tuning circuit, including：
The input terminal of variable capacitance, including an input terminal and an output end, the variable capacitance is used for connecting signal source, institute
The output end of variable capacitance is stated for connecting antenna radiator；
First switch is connect with the input, output end of the variable capacitance；
Second switch, the input terminal connect and ground with the variable capacitance；
Third switch, the output end connect and ground with the variable capacitance；
4th switch, the output end connect and ground with the variable capacitance.
The embodiment of the present application also provides a kind of radio circuit, including signal source, tuning circuit and antenna radiator, described
Signal source, the tuning circuit, the antenna radiator are sequentially connected；
The signal source is for generating radiofrequency signal；
For the tuning circuit for being tuned to the radiofrequency signal, the tuning circuit is above-mentioned tuning circuit；
The antenna radiator is for the emission of radio frequency signals after tuning to the external world.
The embodiment of the present application also provides a kind of electronic equipment, including shell and the radio frequency electrical that the enclosure interior is arranged in
Road, the radio circuit are above-mentioned radio circuit.
Tuning circuit provided by the embodiments of the present application, can be according to the capacitance and first switch of variable capacitance, second
Switch, third switch, the 4th state switched carry out the radiofrequency signal of tuning operation different frequency, so as to improve electronic equipment
The diversity of communications band.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described.It should be evident that the drawings in the following description are only some examples of the present application, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the first structural schematic diagram of electronic equipment provided by the embodiments of the present application.
Fig. 2 is second of structural schematic diagram of electronic equipment provided by the embodiments of the present application.
Fig. 3 is the decomposition diagram of electronic equipment shown in Fig. 1.
Fig. 4 is the first structural schematic diagram of radio circuit provided by the embodiments of the present application.
Fig. 5 is second of structural schematic diagram of radio circuit provided by the embodiments of the present application.
Fig. 6 is the third structural schematic diagram of radio circuit provided by the embodiments of the present application.
Fig. 7 is the 4th kind of structural schematic diagram of radio circuit provided by the embodiments of the present application.
Fig. 8 is the 5th kind of structural schematic diagram of radio circuit provided by the embodiments of the present application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description.Obviously, described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, those skilled in the art's every other implementation obtained without creative efforts
Example, shall fall in the protection scope of this application.
In the description of the present application, such as term " first ", " second " are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
The feature of term can explicitly or implicitly include one or more feature.It is " more in the description of the present application
It is a " it is meant that two or more, unless otherwise specifically defined.
Following disclosure provides many different embodiments or example is used to realize the different structure of the application.In order to
Simplify disclosure herein, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And purpose does not lie in limitation the application.In addition, the application can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, this application provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
The embodiment of the present application provides a kind of electronic equipment.The electronic equipment can be smart phone, tablet computer etc. and set
It is standby, it can also be game station, AR (Augmented Reality, augmented reality) equipment, automobile, data storage device, audio
Playing device, video play device, notebook, Desktop computing device etc..
In some embodiments, with reference to Fig. 1 and Fig. 3, electronic equipment 100 include display screen 11, center 12, circuit board 13,
Battery 14 and rear cover 15.
Wherein, display screen 11 may be mounted on center 12, and be connected to rear cover 15 by center 12, be set with forming electronics
Standby 100 display surface.Front housing of the display screen 11 as electronic equipment 100, the shell of electronic equipment 100 is collectively formed with rear cover 15
Body, for accommodating other electronic components or functional unit of electronic equipment 100.Meanwhile display screen 11 forms electronic equipment 100
Display surface, for showing the information such as image, text.Display screen 11 can be liquid crystal display (Liquid Crystal
Display, LCD) or the types such as organic light-emitting diode (OLED) display screen (Organic Light-Emitting Diode, OLED)
Display screen.
In some embodiments, glass cover-plate can be set on display screen 11.Wherein, glass cover-plate can cover display
Screen 11, to protect to display screen 11, prevents display screen 11 to be scraped off or by Water Damage.
In some embodiments, as shown in Figure 1, display screen 11 may include display area 111 and non-display area
112.Wherein, display area 111 executes the display function of display screen 11, for showing the information such as image, text.Non-display area
112 can be used for being arranged the functional units such as range sensor, receiver, display screen touch control electrode.In some embodiments, non-aobvious
Show that region 112 may include positioned at least one region of 111 upper and lower part of display area.
In some embodiments, as shown in Fig. 2, display screen 11 can be screen comprehensively.At this point, display screen 11 can be with full frame aobvious
Show information, so that electronic equipment 100 has biggish screen accounting.Display screen 11 only includes display area 111, without including non-aobvious
Show that the area of region or non-display area is smaller.At this point, range sensor, ambient light sensor etc. in electronic equipment 100
Functional unit can be hidden in 11 lower section of display screen, and the fingerprint recognition mould group of electronic equipment 100 can be set in electronic equipment
100 back side.
Center 12 can be lamellar or laminar structure, or hollow frame structure.Wherein, center 12 can
To be housed in the enclosure interior that above-mentioned display screen 11 is formed with rear cover 15.Center 12 is used for as the electronics member in electronic equipment 100
Part or functional unit provide a supporting role, and electronic component, the functional unit in electronic equipment are mounted together.For example, electric
The functional units such as receiver, circuit board, battery in sub- equipment can be installed on center 12 to be fixed.In some realities
It applies in example, the material of center 12 may include metal or plastic cement.
Circuit board 13 is mounted on the enclosure interior of electronic equipment 100.Wherein, circuit board 13 can be electronic equipment 100
Mainboard.It is provided with grounding point on circuit board 13, to realize the ground connection of circuit board 13.Processing circuit is integrated on circuit board 13.Institute
State processing circuit for in electronic equipment 100 application program and data handle.It can also be integrated on circuit board 13
Motor, microphone, loudspeaker, receiver, earphone interface, Universal Serial Bus Interface (USB interface), range sensor, environment
One in the functional units such as optical sensor, gyroscope, it is two or more.Meanwhile display screen 11 can be electrically connected to circuit board
13。
Battery 14 is mounted on the enclosure interior of electronic equipment 100.Wherein, battery 14 can be electrically connected to the circuit board
13, to realize battery 14 for the power supply of electronic equipment 100.Wherein, electric power management circuit can be set on circuit board 13.The electricity
Power management circuits are used for each electronic component being assigned to the voltage that battery 14 provides in electronic equipment 100.
Rear cover 15 is used to form the exterior contour of electronic equipment 100.Rear cover 15 can be integrally formed.In the molding of rear cover 15
In the process, the structures such as rear camera hole, fingerprint recognition mould group mounting hole can be formed on rear cover 15.
In the embodiment of the present application, radio circuit is additionally provided in electronic equipment 100.The radio circuit setting is set in electronics
Standby 100 enclosure interior.The radio circuit receives radiofrequency signal for outwardly emitting radiofrequency signal, and from the external world.Example
Such as, the radio circuit can be used for base station or other electronic equipments transmitting radiofrequency signal, and receive base station or other electricity
The radiofrequency signal that sub- equipment is sent.It is thus possible to realize the communication of electronic equipment Yu base station and other electronic equipments.
With reference to Fig. 4, radio circuit 20 includes signal source 21, tuning circuit 22 and antenna radiator 23.The signal source
21, tuning circuit 22, antenna radiator 23 are sequentially connected.
Wherein, signal source 21 and tuning circuit 22 can be set on the circuit board 13 of electronic equipment 100.Antenna radiator
23 can be set on the center 12 of electronic equipment 100, perhaps also can be set on rear cover 15 or can also set in electronics
Antenna holder is separately provided in standby 100, and antenna radiator 23 is arranged on antenna holder.In addition, the antenna radiator
23 ground connection.
In some embodiments, the quantity of the antenna radiator 23 can be multiple, between mutiple antennas radiator 23
Interval setting.For example, an antenna radiator 23 can respectively be arranged in the upper right corner, the lower left corner, the lower right corner of electronic equipment 100.
Each antenna radiator 23 is grounded.
In some embodiments, it could be formed with metal extension on the center 12 of electronic equipment 100.For example, can be
It is cut into one or more gaps on center 12, forms the metal extension of strip on center 12 by gap.Center 12
The metal extension of upper formation can be used as the antenna radiator 23.
Wherein, the signal source 21 is for generating radiofrequency signal.For example, the signal source 21 may include higher-order of oscillation electricity
Road.The high-frequency oscillating circuits generates radiofrequency signal under the control of the processor of electronic equipment 100.
The radiofrequency signal that the tuning circuit 22 is used to generate the signal source 21 is tuned, with according to actual needs
Form the radiofrequency signal of different frequency.
The antenna radiator 23 is used for the emission of radio frequency signals after the tuning of tuning circuit 22 to the external world.In addition, described
Antenna radiator 23 can also receive radiofrequency signal from the external world, and the processor for being transmitted to electronic equipment 100 is handled.
In some embodiments, as shown in figure 5, tuning circuit 22 is opened including variable capacitance 221, first switch 222, second
Close 223, third switch 224 and the 4th switch 225.
Wherein, the capacitance of variable capacitance 221 can be adjusted according to actual needs.For example, the electricity of variable capacitance 221
Adjustable capacitance is the capacitances such as 0.5pF (pico farad), 1.5pF, 3pF.Variable capacitance 221 includes the output of an input terminal A and one
Hold B.The input terminal A of the variable capacitance 221 is for connecting the signal source 21.The output end B of the variable capacitance 221 is used for
Connect the antenna radiator 23.In addition, the antenna radiator 23 is grounded.
The first switch 222 is connect with the input terminal A of the variable capacitance 221, output end B.That is, described first opens
It is in parallel with the variable capacitance 221 to close 222.The first switch 222 is used to control 221 short circuit of variable capacitance or connects,
Namely the control variable capacitance 221 works or does not work.
The input terminal A connect and ground of the second switch 223 and the variable capacitance 221.Wherein, the second switch
When 223 one end is connect with the input terminal A of the variable capacitance 221, tie point is located at input terminal A and the institute of variable capacitance 221
It states between signal source 21.The other end of the second switch 223 is grounded.
The output end B connect and ground of the third switch 224 and the variable capacitance 221.Wherein, the third switch
When 224 one end is connect with the output end B of the variable capacitance 221, tie point is located at output end B and the institute of variable capacitance 221
It states between antenna radiator 23.The other end of the third switch 224 is grounded.
The output end B connect and ground of 4th switch 225 and the variable capacitance 221.Wherein, the 4th switch
When 225 one end is connect with the output end B of the variable capacitance 221, tie point is located at output end B and the institute of variable capacitance 221
It states between antenna radiator 23.The other end of 4th switch 225 is grounded.
In some embodiments, the first switch 222, second switch 223, third switch 224, the 4th switch 225 are equal
For single-pole single-throw switch (SPST).
In some embodiments, the variable capacitance 221 is switched with the first switch 222, second switch 223, third
224, the 4th switch 225 can be encapsulated as an integrated chip.
To which the tuning circuit 22 can be according to the capacitance and the first switch of the variable capacitance 221
222, second switch 223, third switch 224, the 4th switch 225 state carry out the radiofrequency signal of tuning operation different frequency.
In some embodiments, as shown in fig. 6, tuning circuit 22 further includes the first tuned cell 226, the second tuned cell
227 and third tuned cell 228.
Wherein, first tuned cell 226 is connected on the input of the second switch 223 and the variable capacitance 221
It holds between A.Tie point between first tuned cell 226 and the input terminal A of the variable capacitance 221 is located at variable capacitance
Between 221 input terminal A and the signal source 21.In some embodiments, first tuned cell 226 can be the first electricity
Perhaps the first inductance.Wherein, the capacitance of first capacitor or the inductance value of the first inductance can be chosen according to actual needs.
Second tuned cell 227 be connected on the third switch 224 and the variable capacitance 221 output end B it
Between.Tie point between second tuned cell 227 and the output end B of the variable capacitance 221 is located at variable capacitance 221
Between output end B and the antenna radiator 23.In some embodiments, second tuned cell 227 can be the second electricity
Perhaps the second inductance.Wherein, the capacitance of the second capacitor or the inductance value of the second inductance can be chosen according to actual needs.
The third tuned cell 228 be connected on the 4th switch 225 and the variable capacitance 221 output end B it
Between.Tie point between the third tuned cell 228 and the output end B of the variable capacitance 221 is located at variable capacitance 221
Between output end B and the antenna radiator 23.In some embodiments, the third tuned cell 228 can be third electricity
Perhaps third inductance.Wherein, the capacitance of third capacitor or the inductance value of third inductance can be chosen according to actual needs.
In the tuning circuit 22, electronic equipment can be by controlling the first switch 222, second switch 223, third
The state of switch 224, the 4th switch 225 so that the variable capacitance 221 works or do not work, while can make to tune
One or more capacitors are accessed in circuit 22, perhaps access one or more inductance or access the combination of capacitor and inductance, from
And it can be with the radiofrequency signal of tuning operation different frequency.
In some embodiments, as shown in fig. 7, tuning circuit 22 further includes single pole multiple throw 229.The hilted broadsword is thrown more
The output end B connect and ground of switch 229 and the variable capacitance 221.Wherein, the single pole multiple throw 229 includes multiple
Input terminal and an output end.Output end of the multiple input terminals of the single pole multiple throw 229 with the variable capacitance 221
B connection.The output end of the single pole multiple throw 229 is grounded.The output end of the single pole multiple throw 229 can be connected multiple
Any one in input terminal, or any one input terminal can also be disconnected.
Wherein, it is used between multiple input terminals of the single pole multiple throw 229 and the output end B of the variable capacitance 221
In the connection antenna radiator 23.That is, the antenna radiator 23 is connected to the multiple defeated of the single pole multiple throw 229
Enter between end and the output end B of the variable capacitance 221.
In some embodiments, as shown in figure 8, the single pole multiple throw 229 includes first input end C, the second input
Hold D, third input terminal E, the 4th input terminal F and output end G.Wherein, the output end G ground connection.The output end G can connect
Lead to the first input end C, the second input terminal D, third input terminal E, any one in the 4th input terminal F, or can also be with
Disconnect any one input terminal.
Wherein, the 4th tuned cell is in series between the first input end C and the output end B of the variable capacitance 221
231.The 5th tuned cell 232 is in series between the second input terminal D and the output end B of the variable capacitance 221.Described
The 6th tuned cell 233 is in series between three input terminal E and the output end B of the variable capacitance 221.
When the output end G connects the first input end C, the 4th tuned cell 231 accesses circuit.When described
When output end G connects the second input terminal D, the 5th tuned cell 232 accesses circuit.When the output end G connects institute
When stating third input terminal E, the 6th tuned cell 233 accesses circuit.When the output end G connects the 4th input terminal F
When, additional tuned cell is not accessed in circuit, at this time the ground connection of single pole multiple throw 229 namely the variable capacitance 221
Output end B be grounded by the single pole multiple throw 229.
In some embodiments, the 4th tuned cell 231 can be the 4th capacitor or the 4th inductance.Described 5th adjusts
Humorous element 232 can be the 5th capacitor or the 5th inductance.6th tuned cell 233 can be the 6th capacitor or the 6th electricity
Sense.Wherein, the capacitance of the 4th capacitor or the 4th inductance, the 5th capacitor or the 5th inductance, the 6th capacitor or the 6th inductance
Or inductance value can be chosen according to actual needs.
In some embodiments, as shown in figure 8, radio circuit 20 further includes control circuit 24.The control circuit 24 with
The tuning circuit 22 connects.Wherein, the control circuit 24 can be used for controlling the capacitance of the variable capacitance 221, also
It can be used for controlling the first switch 222, second switch 223, third switch 224, the 4th switch 225 and be switched on or switched off shape
State can be also used for the on-state for controlling the single pole multiple throw 229.
Wherein, when the first switch 222, the second switch 223, the third switch 224, the 4th switch
225 disconnect, and the output end G of the single pole multiple throw 229 connects the first input end C or the second input terminal D or third
When input terminal E, the tuning circuit 22 can be used for exporting the radiofrequency signal of first frequency range.At this point, the variable capacitance 221
It is in running order.4th tuned cell 231 or the 5th tuned cell 232 or the 6th tuned cell 233 access circuit.
In some embodiments, the capacitance of the variable capacitance 221 may be at 0.75pF between 1.5pF.It is described
First frequency range is 700MHz to 900MHz.
When the first switch 222 is connected, the output end G of the single pole multiple throw 229 connects the 4th input terminal
When F, the second switch 223 or the third switch 224 or the 4th switch 225 are connected, the tuning circuit 22 can be used
In the radiofrequency signal of output second frequency range.At this point, the variable capacitance 221 is in off position.First tuning
Element 226 or the second tuned cell 227 or third tuned cell 228 access circuit.
In some embodiments, the second frequency range is 1710MHz to 2170MHz.
When the first switch 222, the second switch 223, the third switch 224, the 4th switch 225, institute
When stating single pole multiple throw 229 and disconnecting, the tuning circuit 22 can be used for exporting the radiofrequency signal of third frequency range.This
When, the variable capacitance 221 is in running order.The tuning circuit 22 is connect by the grounding point realization of antenna radiator 23
Ground.
In some embodiments, the capacitance of the variable capacitance 221 may be at 0.75pF between 1.5pF.It is described
Third frequency range is 2300MHz to 2700MHz.
When the first switch 222, the 4th switch 225, the single pole multiple throw 229 disconnect, described second
When switch 223, the third switch 224 are turned on, the tuning circuit 22 can be used for exporting the radio frequency letter of the 4th frequency range
Number.At this point, the variable capacitance 221 is in running order.First tuned cell 226, the second tuned cell 227 access
Circuit.
In some embodiments, the capacitance of the variable capacitance 221 may be at 2pF between 3pF.4th frequency
Rate range is 1428MHz to 1511MHz.
In the embodiment of the present application, electronic equipment 100 can pass through the capacitor of the variable capacitance 221 in control tuning circuit 22
Value, and control first switch 222, second switch 223, third switch 224, the 4th switch 225, single pole multiple throw 229
The multiplicity of electronic equipment communications band can be improved to control the radiofrequency signal that tuning circuit 22 exports different frequency in state
Property.
Tuning circuit provided by the embodiments of the present application, radio circuit and electronic equipment are described in detail above.This
Specific case is applied in text, and the principle and implementation of this application are described, the explanation of above example is only intended to
Help understands the application.Meanwhile for those skilled in the art, according to the thought of the application, it in specific embodiment and answers
With in range, there will be changes, in conclusion the contents of this specification should not be construed as limiting the present application.
Claims (10)
1. a kind of tuning circuit, which is characterized in that including：
Variable capacitance, including an input terminal and an output end, the input terminal of the variable capacitance are used for connecting signal source, it is described can
The output end that power transformation is held is for connecting antenna radiator；
First switch is connect with the input, output end of the variable capacitance；
Second switch, the input terminal connect and ground with the variable capacitance；
Third switch, the output end connect and ground with the variable capacitance；
4th switch, the output end connect and ground with the variable capacitance.
2. tuning circuit according to claim 1, it is characterised in that：
First capacitor or the first inductance are in series between the second switch and the input terminal of the variable capacitance；
The second capacitor or the second inductance are in series between the third switch and the output end of the variable capacitance；
Third capacitor or third inductance are in series between 4th switch and the output end of the variable capacitance.
3. tuning circuit according to claim 2, which is characterized in that further include：
Single pole multiple throw, including multiple input terminals and an output end, multiple input terminals of the single pole multiple throw are and institute
State variable capacitance output end connection, the single pole multiple throw output end ground connection, the single pole multiple throw it is multiple defeated
Enter between end and the output end of the variable capacitance for connecting the antenna radiator.
4. tuning circuit according to claim 3, which is characterized in that the single pole multiple throw include first input end,
Second input terminal, third input terminal and the 4th input terminal, between the first input end and the output end of the variable capacitance
It is in series with the 4th capacitor or the 4th inductance, the 5th electricity is in series between second input terminal and the output end of the variable capacitance
Perhaps the 5th inductance is in series with the 6th capacitor or the 6th electricity between the third input terminal and the output end of the variable capacitance
Sense.
5. tuning circuit according to claim 4, which is characterized in that when the first switch, second switch, described
Third switch, the 4th switch disconnect, and the output end of the single pole multiple throw connects the first input end or second
When input terminal or third input terminal, the tuning circuit can be used for exporting the radiofrequency signal of first frequency range.
6. tuning circuit according to claim 4, which is characterized in that when the first switch is connected, the hilted broadsword is thrown more
The output end of switch connects the 4th input terminal, the second switch or third switch or the 4th switch connection
When, the tuning circuit can be used for exporting the radiofrequency signal of second frequency range.
7. tuning circuit according to claim 4, which is characterized in that when the first switch, second switch, described
When third switch, the 4th switch, the single pole multiple throw disconnect, the tuning circuit can be used for exporting third frequency
The radiofrequency signal of range.
8. tuning circuit according to claim 4, which is characterized in that when the first switch, it is described 4th switch, it is described
Single pole multiple throw disconnects, and the second switch, third switch be when being turned on, and the tuning circuit can be used for exporting the
The radiofrequency signal of four frequency ranges.
9. a kind of radio circuit, which is characterized in that including signal source, tuning circuit and antenna radiator, the signal source, institute
State tuning circuit, the antenna radiator is sequentially connected；
The signal source is for generating radiofrequency signal；
For the tuning circuit for being tuned to the radiofrequency signal, the tuning circuit is any one of claim 1 to 8 institute
The tuning circuit stated；
The antenna radiator is for the emission of radio frequency signals after tuning to the external world.
10. a kind of electronic equipment, which is characterized in that described to penetrate including shell and the radio circuit that the enclosure interior is arranged in
Frequency circuit is radio circuit as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810759353.8A CN108900217B (en) | 2018-07-11 | 2018-07-11 | Tuning circuit, radio frequency circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810759353.8A CN108900217B (en) | 2018-07-11 | 2018-07-11 | Tuning circuit, radio frequency circuit and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108900217A true CN108900217A (en) | 2018-11-27 |
| CN108900217B CN108900217B (en) | 2021-01-08 |
Family
ID=64348698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810759353.8A Active CN108900217B (en) | 2018-07-11 | 2018-07-11 | Tuning circuit, radio frequency circuit and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108900217B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092295A (en) * | 2019-12-16 | 2020-05-01 | 闻泰通讯股份有限公司 | Antenna, antenna adjusting method, terminal and storage medium |
| CN112134585A (en) * | 2019-06-05 | 2020-12-25 | 康希通信科技（上海）有限公司 | Multi-mode multi-frequency transceiver circuit |
| CN112187377A (en) * | 2020-09-02 | 2021-01-05 | 珠海格力电器股份有限公司 | Antenna frequency modulation system, frequency modulation method, device and medium |
| CN112436848A (en) * | 2020-12-04 | 2021-03-02 | 深圳市锐尔觅移动通信有限公司 | Tuning circuit, radio frequency circuit and electronic equipment |
| CN113497345A (en) * | 2020-03-18 | 2021-10-12 | 北京小米移动软件有限公司 | Antenna structure and electronic device |
| CN113810749A (en) * | 2020-06-12 | 2021-12-17 | 深圳市万普拉斯科技有限公司 | Television tuning device and television |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143100A (en) * | 2011-01-04 | 2011-08-03 | 意法·爱立信半导体（北京）有限公司 | Method and terminal equipment for automatically tuning impedance match of multiband aerial |
| CN102414917A (en) * | 2009-02-23 | 2012-04-11 | 纽帕尔斯有限公司 | Band-selecting antenna |
| US20130069737A1 (en) * | 2011-09-19 | 2013-03-21 | Qualcomm Incorporated | Adaptive tuning of an impedance matching circuit in a wireless device |
| CN103337717A (en) * | 2013-06-25 | 2013-10-02 | 华为技术有限公司 | Antenna impedance matching device, semi-conductor chip and antenna impedance matching method |
| CN103731120A (en) * | 2012-10-12 | 2014-04-16 | 英飞凌科技股份有限公司 | Impedance matching network with improved quality factor and method for matching an impedance |
| CN104103904A (en) * | 2013-04-15 | 2014-10-15 | 广达电脑股份有限公司 | Adjustable multi-frequency antenna |
| CN104716432A (en) * | 2015-03-13 | 2015-06-17 | 昆山睿翔讯通通信技术有限公司 | Frequency-band-switchable antenna with switch |
| CN105161866A (en) * | 2015-08-31 | 2015-12-16 | 宇龙计算机通信科技(深圳)有限公司 | Antenna tuner, multi-band antenna and mobile terminal |
| CN106571788A (en) * | 2016-11-03 | 2017-04-19 | 青岛海信移动通信技术股份有限公司 | Multiband matching circuit, radio frequency circuit, antenna system and mobile terminal |
| CN106921021A (en) * | 2017-03-31 | 2017-07-04 | 维沃移动通信有限公司 | A kind of antenna structure and electronic equipment |
| CN206629036U (en) * | 2014-05-19 | 2017-11-10 | 株式会社村田制作所 | Antenna-matching circuit, antenna-matching circuit module, antenna assembly and radio communication device |
-
2018
- 2018-07-11 CN CN201810759353.8A patent/CN108900217B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102414917A (en) * | 2009-02-23 | 2012-04-11 | 纽帕尔斯有限公司 | Band-selecting antenna |
| CN102143100A (en) * | 2011-01-04 | 2011-08-03 | 意法·爱立信半导体（北京）有限公司 | Method and terminal equipment for automatically tuning impedance match of multiband aerial |
| US20130069737A1 (en) * | 2011-09-19 | 2013-03-21 | Qualcomm Incorporated | Adaptive tuning of an impedance matching circuit in a wireless device |
| CN103731120A (en) * | 2012-10-12 | 2014-04-16 | 英飞凌科技股份有限公司 | Impedance matching network with improved quality factor and method for matching an impedance |
| CN104103904A (en) * | 2013-04-15 | 2014-10-15 | 广达电脑股份有限公司 | Adjustable multi-frequency antenna |
| CN103337717A (en) * | 2013-06-25 | 2013-10-02 | 华为技术有限公司 | Antenna impedance matching device, semi-conductor chip and antenna impedance matching method |
| CN206629036U (en) * | 2014-05-19 | 2017-11-10 | 株式会社村田制作所 | Antenna-matching circuit, antenna-matching circuit module, antenna assembly and radio communication device |
| CN104716432A (en) * | 2015-03-13 | 2015-06-17 | 昆山睿翔讯通通信技术有限公司 | Frequency-band-switchable antenna with switch |
| CN105161866A (en) * | 2015-08-31 | 2015-12-16 | 宇龙计算机通信科技(深圳)有限公司 | Antenna tuner, multi-band antenna and mobile terminal |
| CN106571788A (en) * | 2016-11-03 | 2017-04-19 | 青岛海信移动通信技术股份有限公司 | Multiband matching circuit, radio frequency circuit, antenna system and mobile terminal |
| CN106921021A (en) * | 2017-03-31 | 2017-07-04 | 维沃移动通信有限公司 | A kind of antenna structure and electronic equipment |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112134585A (en) * | 2019-06-05 | 2020-12-25 | 康希通信科技（上海）有限公司 | Multi-mode multi-frequency transceiver circuit |
| CN112134585B (en) * | 2019-06-05 | 2021-08-31 | 康希通信科技（上海）有限公司 | Multi-mode multi-frequency transceiver circuit |
| CN111092295A (en) * | 2019-12-16 | 2020-05-01 | 闻泰通讯股份有限公司 | Antenna, antenna adjusting method, terminal and storage medium |
| CN113497345A (en) * | 2020-03-18 | 2021-10-12 | 北京小米移动软件有限公司 | Antenna structure and electronic device |
| CN113810749A (en) * | 2020-06-12 | 2021-12-17 | 深圳市万普拉斯科技有限公司 | Television tuning device and television |
| CN112187377A (en) * | 2020-09-02 | 2021-01-05 | 珠海格力电器股份有限公司 | Antenna frequency modulation system, frequency modulation method, device and medium |
| CN112436848A (en) * | 2020-12-04 | 2021-03-02 | 深圳市锐尔觅移动通信有限公司 | Tuning circuit, radio frequency circuit and electronic equipment |
| CN112436848B (en) * | 2020-12-04 | 2022-08-05 | 深圳市锐尔觅移动通信有限公司 | Tuning circuit, radio frequency circuit and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108900217B (en) | 2021-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108270082B (en) | Antenna assembly and electronic equipment | |
| CN108900217A (en) | Tuning circuit, radio circuit and electronic equipment | |
| CN108039571B (en) | Middle frame assembly, antenna assembly and electronic equipment | |
| CN108470977B (en) | Antenna assembly, antenna device and electronic equipment | |
| CN108281766A (en) | Antenna assembly and electronic equipment | |
| CN108736134B (en) | Antenna assembly and electronic equipment | |
| CN108321494B (en) | Antenna device and electronic apparatus | |
| CN108281767B (en) | Antenna assembly and electronic equipment | |
| CN108923119A (en) | Electronic equipment | |
| CN208157633U (en) | Antenna module and electronic equipment | |
| CN112736461B (en) | Antenna device and electronic equipment | |
| CN109066066A (en) | Antenna module and electronic equipment | |
| CN112768904B (en) | Antenna radiator, antenna assembly and electronic equipment | |
| CN109346828A (en) | Antenna module and electronic equipment | |
| CN108448228A (en) | Antenna module and electronic equipment | |
| CN108565561B (en) | Antenna assembly and electronic equipment | |
| CN108493577B (en) | Antenna assembly and electronic equipment | |
| CN108365866A (en) | Radio circuit and electronic equipment | |
| CN112103624B (en) | Antenna device and electronic apparatus | |
| WO2023273493A1 (en) | Antenna apparatus and electronic device | |
| CN107995333A (en) | Center, center component and electronic equipment | |
| CN112436848B (en) | Tuning circuit, radio frequency circuit and electronic equipment | |
| CN108880603A (en) | Tuning switch module, antenna module and electronic equipment | |
| CN214378862U (en) | Antenna system and electronic device | |
| CN109004343A (en) | Antenna module and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |