CN107634766A - Radio circuit, antenna assembly and electronic equipment - Google Patents
Radio circuit, antenna assembly and electronic equipment Download PDFInfo
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- CN107634766A CN107634766A CN201710745040.2A CN201710745040A CN107634766A CN 107634766 A CN107634766 A CN 107634766A CN 201710745040 A CN201710745040 A CN 201710745040A CN 107634766 A CN107634766 A CN 107634766A
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Abstract
The embodiment of the present application provides a kind of radio circuit, antenna assembly and electronic equipment.Radio circuit includes RF transceiver, the first power amplifier, antenna and notch component, and the RF transceiver, the first power amplifier, antenna are sequentially connected, the notch component and this day line parallel；First power amplifier is used to carry out power amplification to the radiofrequency signal of the global system for mobile communications frequency range of RF transceiver transmitting, and by the radio signal transmission after power amplification to the antenna；The notch component includes switch and notch circuit, and the switch is connected with the notch circuit, and the switch is used to control the notch circuit to enter working condition or exit working condition, the notch circuit ground；When the switch closes, the notch circuit carries out notch processing to the radiofrequency signal of the global system for mobile communications frequency range after power amplification, to suppress the harmonic signal of radiofrequency signal.The harmonic wave that the radio circuit that the embodiment of the present application provides can reduce radio circuit is spuious.
Description
Technical field
The application is related to communication technical field, more particularly to a kind of radio circuit, antenna assembly and electronic equipment.
Background technology
With the continuous development of the communication technology, the radio communication frequency range that terminal can use is more and more.The whole world is mobile logical
The radio frequency band of letter system (Global System for Mobile Communication, GSM) is the most frequently used communication frequency
One of section.GSM frequency ranges include this four frequency ranges of GSM850/900/1800/1900.However, the radiofrequency signal of GSM frequency ranges exist it is humorous
Ripple is spuious.
The content of the invention
The embodiment of the present application provides a kind of radio circuit, antenna assembly and electronic equipment, can reduce the humorous of radio circuit
Ripple is spuious.
The embodiment of the present application provides a kind of radio circuit, including RF transceiver, the first power amplifier, antenna and limit
Ripple component, the RF transceiver, the first power amplifier, antenna are sequentially connected, the notch component and the day line parallel；
First power amplifier is used for penetrating to the global system for mobile communications frequency range of RF transceiver transmitting
Frequency signal carries out power amplification, and by the radio signal transmission after power amplification to the antenna；
The notch component includes switch and notch circuit, and the switch is connected with the notch circuit, the switch
For controlling the notch circuit to enter working condition or exiting working condition, the notch circuit ground；
When the switch is closed, the notch circuit is to the global system for mobile communications frequency range after power amplification
Radiofrequency signal carries out notch processing, to suppress the harmonic signal of radiofrequency signal.
The embodiment of the present application also provides a kind of antenna assembly, including above-mentioned radio circuit.
The embodiment of the present application also provides a kind of electronic equipment, including housing and circuit board, and the circuit board is arranged on described
Enclosure interior, radio circuit is provided with the circuit board, the radio circuit is above-mentioned radio circuit.
The radio circuit that the embodiment of the present application provides, can be penetrated using notch circuit to global system for mobile communications frequency range
Frequency signal carries out notch processing, so as to reduce the spuious of the harmonic signal of radiofrequency signal.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the present application, make required in being described below to embodiment
Accompanying drawing is briefly described.It should be evident that drawings in the following description are only some embodiments of the present application, for
For those skilled in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the structural representation for the electronic equipment that the embodiment of the present application provides.
Fig. 2 is the first structural representation for the radio circuit that the embodiment of the present application provides.
Fig. 3 is second of structural representation of the radio circuit that the embodiment of the present application provides.
Fig. 4 is the third structural representation for the radio circuit that the embodiment of the present application provides.
Fig. 5 is the 4th kind of structural representation of the radio circuit that the embodiment of the present application provides.
Fig. 6 is the 5th kind of structural representation of the radio circuit that the embodiment of the present application provides.
Fig. 7 is the first structural representation for the notch component that the embodiment of the present application provides.
Fig. 8 is second of structural representation of the notch component that the embodiment of the present application provides.
Fig. 9 is the third structural representation for the notch component that the embodiment of the present application provides.
Figure 10 is the 6th kind of structural representation of the radio circuit that the embodiment of the present application provides.
Figure 11 is the circuit diagram for the radio circuit that the embodiment of the present application provides.
Figure 12 is another structural representation for the electronic equipment that the embodiment of the present application provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation describes.Obviously, described embodiment is only some embodiments of the present application, rather than whole embodiments.It is based on
Embodiment in the application, the every other implementation that those skilled in the art are obtained under the premise of creative work is not made
Example, belong to the scope of the application protection.
In the description of the present application, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
Describe the application and simplify to describe, rather than indicate or imply that signified device or element must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore it is not intended that limitation to the application.In addition, term " first ", " second " are only used for
Purpose is described, and it is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.
Thus, " first " is defined, the feature of " second " can be expressed or implicitly includes one or more feature.
In the description of the present application, " multiple " are meant that two or more, unless otherwise specifically defined.
, it is necessary to illustrate in the description of the present application, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection or can mutually communicate；Can be joined directly together, can also be by between intermediary
Connect connected, can be connection or the interaction relationship of two elements of two element internals.For the ordinary skill of this area
For personnel, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
In this application, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Sign is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the application.In order to
Simplify disclosure herein, hereinafter the part and setting of specific examples are described.Certainly, they are only example, 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, between itself not indicating discussed various embodiments and/or setting
Relation.In addition, this application provides various specific techniques and material examples, 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 the equipment such as smart mobile phone, tablet personal computer.
With reference to figure 1, electronic equipment 100 includes cover plate 101, display screen 102, circuit board 103 and housing 104.
Wherein, cover plate 101 is installed on display screen 102, to cover display screen 102.Cover plate 101 can be transparent glass cover
Plate.In certain embodiments, cover plate 101 can be with glass cover-plates made of material such as sapphires.
Display screen 102 is arranged on housing 104, to form the display surface of electronic equipment 100.Display screen 102 can include
Viewing area 102A and non-display area 102B.Viewing area 102A is used for the information such as display image, text.Non-display area
102B not display informations.Non-display area 102B bottom can set the functional units such as fingerprint module, touch-control circuit.
Circuit board 103 is arranged on inside housing 104.Circuit board 103 can be the mainboard of electronic equipment 100.Circuit board 103
On can be integrated with the functional units such as camera, proximity transducer and processor.Meanwhile display screen 102 can be electrically connected to
Circuit board 103.
In certain embodiments, radio frequency (RF, Radio Frequency) circuit is provided with circuit board 103.Radio circuit
Wireless network and the network equipment (for example, server, base station etc.) or other electronic equipments (for example, smart mobile phone etc.) can be passed through
Communication, with the information transmit-receive completed and between the network equipment or other electronic equipments.
In certain embodiments, as shown in Fig. 2 radio circuit 200 can include RF transceiver 21, the first power amplification
Device 22, antenna 23 and notch component 24.Wherein, RF transceiver 21, the first power amplifier 22 and antenna 23 connect successively
Connect, notch component 24 is in parallel with antenna 23.
RF transceiver 21 is used to launch radiofrequency signal (upward signal), and receives radiofrequency signal (downstream signal).
First power amplifier 22 can be used for receiving global system for mobile communications (the following letter that RF transceiver 21 is launched
Claim GSM) frequency range radiofrequency signal, and to GSM signals carry out power amplification, and by Jing Guo power amplification GSM signals transmission
To antenna 23.
In one embodiment, the first power amplifier can be RF Amplifier Module TXM (Tx-Rx Front-End
Module)。
Antenna 23 is used to the upward signal that RF transceiver 21 is sent being transmitted into the external world, or receives radio frequency letter from the external world
Number, and the downstream signal received is sent to RF transceiver 21.
Notch component 24 can include switch 241 and notch circuit 242.Switch 241 is connected with notch circuit 242.Open
241 are closed to be used to control notch circuit 242 to enter working condition or exit working condition.Notch circuit 242 is grounded.Notch circuit
242 can be the circuit for being decayed to the signal of specific frequency.
That is, it is that notch circuit 242 exports to the first power amplifier 22, by power amplification when switching 241 closure
GSM radiofrequency signals carry out notch processing, so as to suppress the harmonic signal of GSM signals.
When notch processing need not be carried out to radiofrequency signal, switch 241 can be disconnected, now notch circuit 242 does not rise
Effect.
In certain embodiments, as shown in figure 3, radio circuit 200 can also include control circuit 25.Wherein, control electricity
Road 25 is connected with notch component 24.Control circuit 25 can also be connected with the processor in electronic equipment 100, with according to processor
Instruction control notch component 24 state.
In certain embodiments, as shown in figure 4, radio circuit 200 can also include the second power amplifier 26 and filter
Ripple unit 27.The input 261 of second power amplifier 26 is connected with the output end 211 of RF transceiver 21, and the second power is put
The big output end 262 of device 26 is connected with the input 271 of filter unit 27.
Second power amplifier 26 is used for radiofrequency signal (such as the CDMA/ to the non-GSM frequency ranges of RF transceiver transmitting
The radiofrequency signal of TD-SCDMA/WCDMA/LTE frequency ranges) carry out power amplification.
The input 221 of the power amplifier 22 of output end 272 and first of filter unit 27 connects.Filter unit 27 is used for
The radiofrequency signal of non-GSM frequency ranges exported to the second power amplifier, by power amplification is filtered.
First power amplifier 22 is used for the radiofrequency signal of the non-GSM frequency ranges export, after filtering of filter unit 27
It is sent to antenna 23.
That is, the radiofrequency signal of the non-GSM frequency ranges exported for filter unit 27, what the first power amplifier 22 played is to incite somebody to action
The radiofrequency signal of these non-GSM frequency ranges is sent to the effect of antenna 23, without carrying out power amplification to it.
In one embodiment, the second power amplifier 26 can be multimode multi-frequency power amplifier (Multimode
Multiband Power Amplifier, MMPA).
Referring to Fig. 5, in one embodiment, RF transceiver can include emission port a1 and a2.First power
Amplifier 22 can include the first low frequency port c1 and the first high frequency port c2.Wherein, emission port a1 can be used for launching GSM
The low frequency radio frequency signal of frequency range, the first low frequency port c1 are used for the low frequency radio frequency for receiving the GSM frequency ranges of the transmitting of RF transceiver 21
Signal.For example, the low frequency signal of GSM frequency ranges can be the radiofrequency signal of GSM850MHz or GSM900MHz band.Emission port
A2 can be used for the high frequency radio signals for launching GSM frequency ranges, and the first high frequency port c2 is sent out for receiving the RF transceiver 21
The high frequency radio signals for the GSM frequency ranges penetrated.For example, the high-frequency signal of GSM frequency ranges can be GSM1800MHz or GSM1900MHz
The radiofrequency signal of frequency range.
Referring to Fig. 6, in one embodiment, RF transceiver 21 can also include emission port b1, b2, b3, the
Two power amplifiers 26 can include the second low frequency port d1, intermediate frequency port d2 and the second high frequency port d3.
Wherein, emission port b1 is used for the low frequency radio frequency signal for launching non-GSM frequency ranges, and the second low frequency port d1 is used to receive
The low frequency radio frequency signal for the non-GSM frequency ranges that RF transceiver 21 is launched.
Emission port b2 is used for the intermediate frequency radiofrequency signal for launching non-GSM frequency ranges, and intermediate frequency port d2 is used to receive radio-frequency receiving-transmitting
The intermediate frequency radiofrequency signal for the non-GSM frequency ranges that device 21 is launched.
Emission port b3 is used for the high frequency radio signals for launching non-GSM frequency ranges, and the second high frequency port d3 is used to receive radio frequency
The high frequency radio signals for the non-GSM frequency ranges that transceiver 21 is launched.
It should be noted that above-mentioned high frequency radio signals, intermediate frequency radiofrequency signal, low frequency radio frequency signal are relative concept,
Absolute frequency range is had no to distinguish.
Wherein, b1 is low frequencies port, for launch non-GSM frequency ranges low frequency radio frequency signal (for example, band17,
The radiofrequency signal of the frequency ranges such as band20).B2 is intermediate frequency emission port, for launching the intermediate frequency radiofrequency signal (example of non-GSM frequency ranges
Such as, the radiofrequency signal of the frequency range such as band4, band39).B3 is high-frequency emission port, for launching the high-frequency radio frequency of non-GSM frequency ranges
Signal (for example, radiofrequency signal of the frequency range such as band40, band41).
It should be noted that above-described embodiment is only said so that RF transceiver 21 includes 5 radio-frequency transmissions ports as an example
It is bright.In some other embodiment, the radio-frequency transmissions port and radio frequency reception port of other quantity can also be included.
Filter unit 27 is used for that RF transceiver 21 is launched and non-after the amplification of the second power amplifier 26
The upward signal of GSM frequency ranges is filtered, and filtered upward signal is sent into antenna 23.In some embodiments,
Filter unit 27 can be duplexer or wave filter, or existing duplexer has wave filter again.
For example, the quantity of filter unit 27 can be multiple, and it is duplexer.The input of these duplexers and defeated
Going out end, the output end with the second power amplifier 26, the input of the first power amplifier 22 are connected respectively.
Or the quantity of filter unit 27 can be multiple, and it is wave filter.The input of these wave filters and defeated
Going out end, the output end with the second power amplifier 26, the input of the first power amplifier 22 are connected respectively.
Or the quantity of filter unit 27 can be multiple, wherein existing duplexer, also there is wave filter.These duplexers
With the input of the input and output end of the wave filter output end with the second power amplifier 26, the first power amplifier 22 respectively
End connection.
In one embodiment, the first power amplifier 22 and the connection of antenna 23 form path.
Referring to Fig. 7, the switch 241 in filtering unit 24 can be single-pole single-throw switch (SPST).The input of single-pole single-throw switch (SPST)
End and output end can be connected respectively to the first power amplifier 22 and the connection of antenna 23 forms path, notch circuit 242 connects.
Notch circuit 242 can include inductance and electric capacity, and be in series by inductance and electric capacity.Notch circuit 242 is grounded.
In another embodiment, notch circuit 242 can include multiple notch branch roads, and each notch branch road can be by
Inductance and electric capacity are in series, and each notch branch road is used for the harmonic signal for suppressing a specific radio frequency band, each notch branch
Road is grounded.
And it can be single pole multiple throw to switch 241.The fixing end of single pole multiple throw may be coupled to the first power and put
Big device 22 and antenna 23 connection forms path, the gating end then connection corresponding with multiple notch branch roads of single pole multiple throw.I.e., often
One gating end is all connected with a notch branch road.
For example, as shown in figure 8, so that switch 241 is single-pole double-throw switch (SPDT) as an example.Notch circuit 242 can include two limits
Ripple branch road.For example, the two notch branch roads are respectively x1 and x2.Notch branch road x1 and x2 are in series by inductance and electric capacity,
And notch branch road x1 and x2 are grounded.
In some embodiments, the parameter of notch branch road x1 and x2 inductance and electric capacity can be different, so that notch
Branch road x1 and x2 can be suppressed for the harmonic signal of the GSM signals of different frequency range respectively, so as to reduce these GSM frequency ranges
Harmonic wave it is spuious.
In another embodiment, notch circuit 242 can include multiple notch branch roads, and each notch branch road can be by
Inductance and electric capacity are in series, and each notch branch road is used for the harmonic signal for suppressing a specific radio frequency band, each notch branch
Road is grounded.
And multiple sub switchs can be included by switching 241, the both ends of each sub switch respectively with the first power amplifier 22 and
The connection of antenna 23 forms path, notch branch road connection.
For example, as shown in figure 9, so that switch 241 includes three sub switchs as an example.These three sub switchs be respectively k1, k2 and
k3.Notch circuit 242 can include three notch branch roads.For example, these three notch branch roads are respectively x3, x4 and x5.Notch branch
X3, x4 and x5 are in series by inductance and electric capacity on road, and notch branch road x3, x4 and x5 are grounded.
Wherein, sub switch k1 both ends are connected to form path, notch branch with the first power amplifier 22 and antenna 23 respectively
Road x3 connections, sub switch k2 both ends are connected to form path, notch branch road x4 with the first power amplifier 22 and antenna 23 respectively
Connection, sub switch k3 both ends are connected to form path, the x5 connections of notch branch road respectively with the first power amplifier 22 and antenna 23.
In some embodiments, the parameter of notch branch road x3, x4 and x5 inductance and electric capacity can be different, so that limit
Ripple branch road x3, x4 and x5 can be suppressed for the harmonic signal of the GSM signals of different frequency range respectively, so as to reduce these
The harmonic wave of GSM frequency ranges is spuious.
Referring to Fig. 10, radio circuit 200 can include RF transceiver 21, the first power amplifier 22, antenna 23, limit
Ripple component 24, the second power amplifier 26 and filter unit 27.
Wherein, RF transceiver 21, the first power amplifier 22, antenna 23 are sequentially connected.
Notch component 24 is in parallel with antenna 23.
RF transceiver 21, the second power amplifier 26, filter unit 27, the first power amplifier 22 are sequentially connected.
RF transceiver includes emission port a1, a2, b1, b2, b3.Wherein, emission port a1 is used to launch GSM frequency ranges
Low frequency radio frequency signal.Emission port a2 is used for the high frequency radio signals for launching GSM frequency ranges.Emission port b1 is used to launch non-GSM
The low frequency radio frequency signal of frequency range.Emission port b2 is used for the intermediate frequency radiofrequency signal for launching non-GSM frequency ranges.Emission port b3 is used to send out
Penetrate the high frequency radio signals of non-GSM frequency ranges.
First power amplifier 22 includes the first low frequency port c1 and the first high frequency port c2.Wherein, the first low frequency port
C1 can be used for the low frequency radio frequency signal for receiving the GSM frequency ranges that RF transceiver 21 is launched.First high frequency port c2 can be used for
Receive the high frequency radio signals for the GSM frequency ranges that RF transceiver 21 is launched.
Second power amplifier 26 can include the second low frequency port d1, intermediate frequency port d2 and the second high frequency port d3.Its
In, the second low frequency port d1 is used for the low frequency radio frequency signal for receiving the non-GSM frequency ranges of the transmitting of RF transceiver 21.Intermediate frequency port d2
For the intermediate frequency radiofrequency signal for the non-GSM frequency ranges for receiving the transmitting of RF transceiver 21.Second high frequency port d3 is used to receive radio frequency
The high frequency radio signals for the non-GSM frequency ranges that transceiver 21 is launched.
That is, formed with for launching GSM frequency range radiofrequency signals between the power amplifier 22 of RF transceiver 21 and first
The first path.The shape between RF transceiver 21, the second power amplifier 26, filter unit 27, the first power amplifier 22
Into the alternate path having for launching non-GSM frequency ranges radiofrequency signal.Above-mentioned first path and alternate path are arranged in parallel.
Notch component 24 includes switch 241 and notch circuit 242.Wherein, switch 241 is single-pole double-throw switch (SPDT).Notch electricity
Road 242 includes two notch branch roads.The two notch branch roads are respectively x1 and x2.Notch branch road x1 and x2 are by inductance and electric capacity
It is in series, and notch branch road x1 and x2 are grounded.
Notch branch road x1 and x2 inductance and the parameter of electric capacity can be different, so that notch branch road x1 and x2 can distinguish
Suppressed for the harmonic signal of the GSM signals of different frequency range, it is spuious so as to reduce the harmonic wave of these GSM frequency ranges.For example, limit
Ripple branch road x1 can be the notch circuit for suppressing the triple-frequency harmonics of GSM900MHz band, and notch branch road x2 can be used
In the notch circuit for the second harmonic for suppressing GSM1800MHz band.
It should be noted that in one embodiment, penetrating for the GSM frequency ranges that RF transceiver is launched can be measured in advance
Harmonic wave is spuious than more serious frequency range and its corresponding overtone order in frequency signal.For example, measure in advance in radio circuit
The spuious most serious of harmonic wave of the triple-frequency harmonics of GSM900MHz band, then when designing notch circuit for radio circuit, it is possible to
Numerical value by the parameter setting of inductance in notch circuit and electric capacity into the triple-frequency harmonics for suppressing GSM900MHz band, so as to
The harmonic wave for suppressing the triple-frequency harmonics of GSM900MHz band is spuious.
When RF transceiver 21 passes through the low frequency radio frequency signal of emission port a1 transmitting GSM frequency ranges, such as GSM900MHz frequencies
During the radiofrequency signal of section, the first low frequency port c1 of the first power amplifier 22 can receive penetrating for the GSM900MHz band
Frequency signal, and power amplification is carried out to the radiofrequency signal, and the radiofrequency signal Jing Guo power amplification is sent to antenna 23.Together
When, switch 241 is closed to k4 output ports, so that notch branch road x1 can be sent to antenna 23 to the first power amplifier 22
The radiofrequency signal of GSM900MHz band carry out notch processing, the harmonic wave for suppressing the harmonic signal of GSM900MHz band is miscellaneous
Dissipate, that is, realize that the harmonic wave for the low frequency radio frequency signal for reducing GSM frequency ranges is spuious.
When RF transceiver 21 passes through the high frequency radio signals of emission port a2 transmitting GSM frequency ranges, such as GSM1800MHz
During the radiofrequency signal of frequency range, the first high frequency port c2 of the first power amplifier 22 can receive the GSM1800MHz band
Radiofrequency signal, and power amplification is carried out to the radiofrequency signal, and the radiofrequency signal Jing Guo power amplification is sent to antenna 23.
Meanwhile switch 241 can be closed to k5 output ports, so that notch branch road x2 is sent to antenna to the first power amplifier 22
The radiofrequency signal of 23 GSM1800MHz band carries out notch processing, suppress GSM1800MHz band second harmonic signal it is humorous
Ripple is spuious, that is, realizes that the harmonic wave for the high frequency radio signals for reducing GSM frequency ranges is spuious.
It should be noted that because notch branch road x1 is the notch electricity spuious for suppressing the harmonic wave of GSM900MHz band
Road, and notch branch road x2 is the notch circuit spuious for suppressing the harmonic wave of GSM1800MHz band, thus notch branch road x1 and
X2 can not carry out notch processing to GSM850MHz or the harmonic signal of the radiofrequency signal of GSM1900MHz band.That is, radio frequency is worked as
The radiofrequency signal that transceiver 21 is launched for GSM850MHz or GSM1900MHz band signal when, switch 241 may be at disconnecting
State.
When RF transceiver 21 launches the radiofrequency signal of non-GSM frequency ranges, such as RF transceiver 21 passes through emission port b1
When launching the low frequency radio frequency signal of LTE standard frequency ranges, the second low frequency port d1 of the second power amplifier 26 can receive this
The low frequency radio frequency signal of LTE standard frequency ranges, and power amplification is carried out to the low frequency radio frequency signal of the LTE standard frequency ranges, and will
The low frequency radio frequency signal of LTE standard frequency ranges by amplification is sent to filter unit 27.Filter unit 27 is to the LTE by amplification
The low frequency radio frequency signal of standard frequency range is filtered processing, and is sent to the first power amplifier 22.First power amplifier 22
The low frequency radio frequency signal of LTE standard frequency ranges after filtering is sent to antenna 23.Meanwhile switch 241 is off, from
And notch component 24 is set not impacted to the low frequency radio frequency signal of LTE standard frequency ranges.
When RF transceiver 21 launches the radiofrequency signal of non-GSM frequency ranges, such as RF transceiver 21 passes through emission port b2
When launching the intermediate frequency radiofrequency signal of LTE standard frequency ranges, the intermediate frequency port d2 of the second power amplifier 26 can receive the LTE systems
The intermediate frequency radiofrequency signal of formula frequency range, and power amplification is carried out to the intermediate frequency radiofrequency signal of the LTE standard frequency ranges, and will pass through and put
The intermediate frequency radiofrequency signal of big LTE standard frequency ranges is sent to filter unit 27.Filter unit 27 is to the LTE standards frequency by amplification
The intermediate frequency radiofrequency signal of section is filtered processing, and is sent to the first power amplifier 22.First power amplifier 22 will pass through
The intermediate frequency radiofrequency signal of the LTE standard frequency ranges of filtering is sent to antenna 23.Meanwhile switch 241 is off, so that limit
Ripple component 24 will not impact to the intermediate frequency radiofrequency signal of LTE standard frequency ranges.
When RF transceiver 21 launches the radiofrequency signal of non-GSM frequency ranges, such as RF transceiver 21 passes through emission port b3
When launching the high frequency radio signals of LTE standard frequency ranges, the high frequency port d3 of the second power amplifier 26 can receive the LTE systems
The high frequency radio signals of formula frequency range, and power amplification is carried out to the high frequency radio signals of the LTE standard frequency ranges, and will pass through and put
The high frequency radio signals of big LTE standard frequency ranges are sent to filter unit 27.Filter unit 27 is to the LTE standards frequency by amplification
The high frequency radio signals of section are filtered processing, and are sent to the first power amplifier 22.First power amplifier 22 will pass through
The high frequency radio signals of the LTE standard frequency ranges of filtering are sent to antenna 23.Meanwhile switch 241 is off, so that limit
Ripple component 24 will not impact to the high frequency radio signals of LTE standard frequency ranges.
Figure 11 is referred to, in one embodiment, the first power amplifier 22 can be RF Amplifier Module TXM.
Can a hilted broadsword list in parallel on the path of the path for the arrival antenna that the ANT pins (antenna leads) of RF Amplifier Module are drawn
The notch circuit that throw switch S, the single-pole single-throw switch (SPST) S RF2 pins connection one are made up of inductance L1 and electric capacity C1.Notch electricity
Road is grounded.The harmonic wave that the notch circuit can be used for suppressing the harmonic signal of GSM frequency ranges is spuious.Single-pole single-throw switch (SPST) S can be with
By enabled pin EN and controlling switch CTL come the closed and disconnected of controlling switch.I.e., when the switch s is closed, notch circuit can be with
The harmonic wave for suppressing the harmonic signal of GSM frequency ranges is spuious.
In one embodiment, such as in advance the spuious than more serious of the triple-frequency harmonics of GSM900MHz band is measured, that
It can go to set using such as simulation software such as Advanced Design System (Automation Device Specification, ADS)
Inductance L1 and electric capacity C1 parameter value is counted, the notch circuit that inductance L1 and electric capacity C1 is formed is made GSM900MHz band
Triple-frequency harmonics has maximum attenuation at harmonic wave point.That is, inductance L1 and electric capacity C1 design parameter value can be multiple, and
It is not only one, as long as the notch circuit of inductance L1 and electric capacity C1 compositions can make the triple-frequency harmonics of GSM900MHz band exist
There is maximum attenuation at harmonic wave point.
With continued reference to Fig. 1.Wherein, housing 104 is used for the exterior contour for forming electronic equipment 100.The material of housing 104 can
Think plastics or metal.Housing 104 can be integrally formed.
With reference to figure 12, Figure 12 is another structural representation for the electronic equipment 100 that the embodiment of the present application provides.Electronic equipment
100 include antenna assembly 10, memory 20, display unit 30, power supply 40 and processor 50.Those skilled in the art can manage
Solve, the structure of the electronic equipment 100 shown in Figure 12 does not form the restriction to electronic equipment 100.Electronic equipment 100 can wrap
Include than illustrating more or less parts, either combine some parts or different parts arrangement.
Wherein, antenna assembly 10 includes the radio circuit 200 described in any of the above-described embodiment.Antenna assembly 10 can be with
Communicated by wireless network with the network equipment (for example, server) or other electronic equipments (for example, smart mobile phone), completion and net
Information transmit-receive between network equipment or other electronic equipments.
Memory 20 can be used for storage application program and data.Include in the application program that memory 20 stores executable
Program code.Application program can form various functions module.Processor 50 is stored in the application journey of memory 20 by operation
Sequence, so as to perform various function application and data processing.
Display unit 30 can be used for display by user is input to the information of electronic equipment 100 or is supplied to user information with
And the various graphical user interface of electronic equipment 100.These graphical user interface can by figure, text, icon, video and its
It is combined to form.Display unit 30 may include display panel.
The all parts that power supply 40 is used for electron equipment 100 are powered.In certain embodiments, power supply 40 can pass through electricity
Management system and processor 50 are logically contiguous, so as to realize management charging, electric discharge and power consumption pipe by power-supply management system
The functions such as reason.
Processor 50 is the control centre of electronic equipment 100.Processor 50 is entirely electric using various interfaces and connection
The various pieces of sub- equipment 100, by running or performing the application program being stored in memory 20, and call and be stored in
Data in reservoir 20, the various functions and processing data of electronic equipment 100 are performed, so as to carry out entirety to electronic equipment 100
Monitoring.
In addition, electronic equipment 100 can also include camera module, bluetooth module etc., will not be repeated here.
Radio frequency switching circuit chip, radio circuit, antenna assembly and the electronic equipment provided above the embodiment of the present application
It is described in detail, specific case used herein is set forth to the principle and embodiment of the application, and the above is real
The explanation for applying example is only intended to help and understands the application.Meanwhile for those skilled in the art, according to the thought of the application,
There will be changes in specific embodiments and applications, in summary, this specification content should not be construed as to this
The limitation of application.
Claims (10)
- A kind of 1. radio circuit, it is characterised in that including RF transceiver, the first power amplifier, antenna and notch component, The RF transceiver, the first power amplifier, antenna are sequentially connected, the notch component and the day line parallel；First power amplifier is used to believe the radio frequency of the global system for mobile communications frequency range of RF transceiver transmitting Number power amplification is carried out, and by the radio signal transmission after power amplification to the antenna；The notch component includes switch and notch circuit, and the switch is connected with the notch circuit, and described switch is used for Control the notch circuit to enter working condition or exit working condition, the notch circuit ground；When the switch is closed, radio frequency of the notch circuit to the global system for mobile communications frequency range after power amplification Signal carries out notch processing, to suppress the harmonic signal of radiofrequency signal.
- 2. radio circuit according to claim 1, it is characterised in that first power amplifier connects with the antenna Path is formed, the switch is single-pole single-throw switch (SPST), and the notch circuit includes inductance and electric capacity, the inductance and the electric capacity Series connection, the both ends of the single-pole single-throw switch (SPST) are respectively connecting to the path and the notch circuit.
- 3. radio circuit according to claim 1, it is characterised in that first power amplifier connects with the antenna Path is formed, the notch circuit includes multiple notch branch roads, and each the notch branch route inductance and electric capacity are in series, used In the harmonic signal for suppressing a radio frequency band, each notch grounding, the switch is single pole multiple throw, the list The fixing end of knife multithrow switch is connected on the path, the gating end of the single pole multiple throw and multiple notch branch roads Corresponding connection.
- 4. radio circuit according to claim 1, it is characterised in that first power amplifier connects with the antenna Path is formed, the notch circuit includes multiple notch branch roads, and each the notch branch route inductance and electric capacity are in series, used Include multiple sub switchs, Mei Yisuo in the harmonic signal for suppressing a radio frequency band, each notch grounding, the switch The both ends for stating sub switch are connected with the path and a notch branch road respectively.
- 5. radio circuit according to claim 1, it is characterised in that the radio circuit also includes the second power amplification Device, filter unit, the input of second power amplifier are connected with the output end of the RF transceiver, second work( The output end of rate amplifier is connected with the input of the filter unit, and second power amplifier is used to receive the radio frequency Send out device transmitting non-global system for mobile communications frequency range radiofrequency signal carry out power amplification, the output end of the filter unit and The input connection of first power amplifier, first power amplifier are used for the signal for exporting the filter unit Transmit to the antenna.
- 6. radio circuit according to claim 5, it is characterised in that second power amplifier is multimode multi-frequency power Amplifier.
- 7. radio circuit according to claim 1, it is characterised in that first power amplifier includes the first low frequency end Mouth and the first high frequency port, the first low frequency port are used for the global system for mobile communications for receiving the RF transceiver transmitting The low frequency signal of frequency range, the first high frequency port are used for the global system for mobile communications frequency for receiving the RF transceiver transmitting The high-frequency signal of section.
- 8. radio circuit according to claim 5, it is characterised in that second power amplifier includes the second low frequency end Mouth, intermediate frequency port and the second high frequency port, the second low frequency port are used for the non-whole world for receiving the RF transceiver transmitting The low frequency signal of GSM frequency range, the non-whole world that the intermediate frequency port is used to receive the RF transceiver transmitting are mobile The intermediate-freuqncy signal of communication system frequency range, the non-whole world that the second high frequency port is used to receive the RF transceiver transmitting are mobile The high-frequency signal of communication system frequency range.
- 9. a kind of antenna assembly, it is characterised in that the antenna assembly includes the radio frequency electrical described in any one of claim 1 to 8 Road.
- 10. a kind of electronic equipment, it is characterised in that the electronic equipment includes housing and circuit board, and the circuit board is arranged on The enclosure interior, radio circuit is provided with the circuit board, and the radio circuit is described in any one of claim 1 to 8 Radio circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710745040.2A CN107634766A (en) | 2017-08-25 | 2017-08-25 | Radio circuit, antenna assembly and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710745040.2A CN107634766A (en) | 2017-08-25 | 2017-08-25 | Radio circuit, antenna assembly and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107634766A true CN107634766A (en) | 2018-01-26 |
Family
ID=61101613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710745040.2A Pending CN107634766A (en) | 2017-08-25 | 2017-08-25 | Radio circuit, antenna assembly and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107634766A (en) |
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| CN108377139A (en) * | 2018-01-30 | 2018-08-07 | 广东欧珀移动通信有限公司 | Electronic device |
| CN108418592A (en) * | 2018-01-30 | 2018-08-17 | 广东欧珀移动通信有限公司 | Control the method and relevant device of radiation dispersion |
| CN108462500A (en) * | 2018-03-28 | 2018-08-28 | 努比亚技术有限公司 | A kind of method, apparatus, terminal and readable storage medium storing program for executing reducing radiation dispersion |
| CN109039369A (en) * | 2018-08-16 | 2018-12-18 | Oppo（重庆）智能科技有限公司 | Radio circuit and electronic equipment |
| CN109660267A (en) * | 2018-12-10 | 2019-04-19 | 维沃移动通信有限公司 | A kind of antenna system and mobile terminal |
| WO2019179304A1 (en) * | 2018-03-20 | 2019-09-26 | Huawei Technologies Co., Ltd. | Tunable filter |
| CN111082814A (en) * | 2019-12-13 | 2020-04-28 | 惠州Tcl移动通信有限公司 | Method and device for downlink signal transmission in dual-connection architecture, and terminal |
| CN111181590A (en) * | 2020-01-07 | 2020-05-19 | 维沃移动通信有限公司 | Radio frequency control circuit and electronic equipment |
| CN111464204A (en) * | 2020-03-04 | 2020-07-28 | 深圳市广和通无线股份有限公司 | Radio frequency circuit and antenna tuning circuit |
| CN112490633A (en) * | 2020-11-25 | 2021-03-12 | 深圳市锐尔觅移动通信有限公司 | Functional module and electronic device |
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| CN108418592A (en) * | 2018-01-30 | 2018-08-17 | 广东欧珀移动通信有限公司 | Control the method and relevant device of radiation dispersion |
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| CN108418592B (en) * | 2018-01-30 | 2020-05-08 | Oppo广东移动通信有限公司 | Method for controlling radiation stray and related equipment |
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| WO2019179304A1 (en) * | 2018-03-20 | 2019-09-26 | Huawei Technologies Co., Ltd. | Tunable filter |
| US11923830B2 (en) | 2018-03-20 | 2024-03-05 | Huawei Technologies Co., Ltd. | Tunable filter |
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| CN109039369A (en) * | 2018-08-16 | 2018-12-18 | Oppo（重庆）智能科技有限公司 | Radio circuit and electronic equipment |
| CN109660267A (en) * | 2018-12-10 | 2019-04-19 | 维沃移动通信有限公司 | A kind of antenna system and mobile terminal |
| CN111082814A (en) * | 2019-12-13 | 2020-04-28 | 惠州Tcl移动通信有限公司 | Method and device for downlink signal transmission in dual-connection architecture, and terminal |
| CN111181590A (en) * | 2020-01-07 | 2020-05-19 | 维沃移动通信有限公司 | Radio frequency control circuit and electronic equipment |
| CN111464204A (en) * | 2020-03-04 | 2020-07-28 | 深圳市广和通无线股份有限公司 | Radio frequency circuit and antenna tuning circuit |
| CN112490633A (en) * | 2020-11-25 | 2021-03-12 | 深圳市锐尔觅移动通信有限公司 | Functional module and electronic device |
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Application publication date: 20180126 |