CN108880571A - Radio circuit and electronic equipment - Google Patents

Radio circuit and electronic equipment Download PDF

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Publication number
CN108880571A
CN108880571A CN201810497051.8A CN201810497051A CN108880571A CN 108880571 A CN108880571 A CN 108880571A CN 201810497051 A CN201810497051 A CN 201810497051A CN 108880571 A CN108880571 A CN 108880571A
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CN
China
Prior art keywords
filter
receiving
radiofrequency signal
transmission module
frequency range
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Granted
Application number
CN201810497051.8A
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Chinese (zh)
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CN108880571B (en
Inventor
姚坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN201810497051.8A priority Critical patent/CN108880571B/en
Publication of CN108880571A publication Critical patent/CN108880571A/en
Application granted granted Critical
Publication of CN108880571B publication Critical patent/CN108880571B/en
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/005Details 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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/005Details 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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053Details 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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/0057Details 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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/005Details 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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053Details 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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/006Details 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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/38Transceivers, 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
    • H04B1/40Circuits

Abstract

The embodiment of the present application provides a kind of radio circuit and electronic equipment, and the radio circuit includes RF receiving and transmission module, the first filter element, the second filter element, switching switch, RF switch and antenna.In radio circuit provided by the embodiments of the present application, when the first radiofrequency signal of RF receiving and transmission module transmitting-receiving, when including the signal component of identical frequency in the second radiofrequency signal, it is filtered respectively by the filter element in unlike signal access, first radiofrequency signal not only may be implemented, the carrier wave of second radiofrequency signal polymerize, it can also avoid interfering with each other between first radiofrequency signal and the second radiofrequency signal, the non-carrier polymerization of first radiofrequency signal or the second radiofrequency signal also may be implemented simultaneously, the diversity of carrier wave polymerization or non-carrier polymerization is carried out so as to improve electronic equipment to radiofrequency signal.

Description

Radio circuit and electronic equipment
Technical field
This application involves field of communication technology, in particular to a kind of radio circuit and electronic equipment.
Background technique
With the development of communication technology, the communications band that mobile terminal can be supported is more and more.For example, LTE (Long Term Evolution, long term evolution) signal of communication may include frequency in 700MHz to the signal between 2700MHz.
The radiofrequency signal that mobile terminal 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.
Carrier wave polymerization (Carrier Aggregation, abbreviation CA) technology is produced as a result,.It is polymerize by carrier wave, it can be with Multiple sub-band signals are condensed together, to improve network up and down transmission rate.
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 frequency range requirements of combination of different carrier wave polymerizations.However, current carrier wave polymerize energy The frequency range enough being polymerize is single, and lack of diversity is unable to satisfy the demand.
Summary of the invention
The embodiment of the present application provides a kind of radio circuit and electronic equipment, and electronic equipment can be improved and carry out to radiofrequency signal The diversity of carrier wave polymerization and non-carrier polymerization.
The embodiment of the present application provides a kind of radio circuit, including:
RF receiving and transmission module, for receiving and dispatching the first radiofrequency signal and the second radiofrequency signal, the frequency of first radiofrequency signal Rate range includes the first frequency range, and the frequency range of second radiofrequency signal includes the second frequency range;
First filter element is coupled with the RF receiving and transmission module, and first filter element is for filtering out described first The first spurious signal in radiofrequency signal, the frequency range of first spurious signal include second frequency range;
Second filter element is coupled with the RF receiving and transmission module, and second filter element is for filtering out described second The second spurious signal in radiofrequency signal, the frequency range of second spurious signal include first frequency range;
Switching switch, couples with the RF receiving and transmission module, the second filter element respectively, and the switching switch is for selecting Property connect the RF receiving and transmission module or second filter element;
RF switch is coupled with first filter element, switching switch respectively, and the RF switch is for realizing described First radiofrequency signal polymerize with the second radiofrequency signal carrier wave or non-carrier polymerization;
Antenna is coupled with the RF switch.
The embodiment of the present application also provides a kind of electronic equipment, including shell and the circuit board for being mounted on the enclosure interior, Radio circuit is provided on the circuit board, the radio circuit is above-mentioned radio circuit.
In radio circuit provided by the embodiments of the present application, when RF receiving and transmission module transmitting-receiving the first radiofrequency signal, second penetrate When including the signal component of identical frequency in frequency signal, it is filtered respectively by the filter element in unlike signal access, no The carrier wave polymerization that first radiofrequency signal, the second radiofrequency signal only may be implemented, can also avoid first radiofrequency signal It is interfered with each other between the second radiofrequency signal, while the non-load of first radiofrequency signal or the second radiofrequency signal also may be implemented Wave polymerization carries out the diversity of carrier wave polymerization or non-carrier polymerization so as to improve electronic equipment to radiofrequency signal.
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 structural schematic diagram of electronic equipment provided by the embodiments of the present application.
Fig. 2 is another structural schematic diagram of electronic equipment provided by the embodiments of the present application.
Fig. 3 is the decomposition diagram of electronic equipment provided by the embodiments of the present application.
Fig. 4 is the structural schematic diagram of radio circuit provided by the embodiments of the present application.
Fig. 5 is another structural schematic diagram of radio circuit provided by the embodiments of the present application.
Fig. 6 is the another structural schematic diagram of radio circuit provided by the embodiments of the present application.
Schematic diagram of a scenario when Fig. 7 is B7 frequency range emission of radio frequency signals in the embodiment of the present application.
Schematic diagram of a scenario when Fig. 8 is B41 frequency range emission of radio frequency signals in the embodiment of the present application.
Fig. 9 is another structural schematic diagram of radio circuit provided by the embodiments of the present application.
Figure 10 is the structural schematic diagram another again 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, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of It describes the application and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy Fixed orientation construction and operation, therefore should not be understood as the limitation to the application.In addition, term " first ", " second " are only used for Purpose is described, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic. " first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more feature.? In the description of the present application, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present application, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can To be mechanical connection, it is also possible to be electrically connected or can mutually communicate;It can be directly connected, it can also be by between intermediary It connects connected, can be the connection inside two elements or the interaction relationship of two elements.For the ordinary skill of this field For personnel, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
In this application unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower" It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above " Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of First feature horizontal height is less than second feature.
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. can also be wearable device such as electronic watch, electricity The equipment such as sub- glasses, electronic helmet, electronic bracelet, electronics necklace, electronic clothes.
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 is mounted on rear cover 15, to form the display surface of electronic equipment 100.Display screen 11 is as electricity The front housing of sub- equipment 100, the shell of electronic equipment 100 is collectively formed with rear cover 15, for accommodating other electricity of electronic equipment 100 Subcomponent or functional unit.Meanwhile display screen 11 forms the display surface of electronic equipment 100, for showing that image, text etc. are believed Breath.Display screen 11 can be liquid crystal display (Liquid Crystal Display, LCD) or organic light-emitting diode (OLED) display screen The display screen of types such as (Organic Light-Emitting Diode, OLED).
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 frequency (RF, Radio Frequency) circuit is provided on the circuit board 13.Institute State radio circuit can by wireless network and the network equipment (for example, server, base station etc.) or other electronic equipments (for example, Smart phone etc.) communication, with the information transmit-receive completed and between the network equipment or other electronic equipments.
In some embodiments, as shown in figure 4, radio circuit 20 include RF receiving and transmission module 21, the first filter element 22, Second filter element 23, RF switch 24 and antenna 25.
Wherein, RF receiving and transmission module 21 is used for transceiving radio frequency signal.Can be set on RF receiving and transmission module 21 one or Multiple radio-frequency transmissions ports and one or more radio frequency receptions port.Each radio-frequency transmissions port is for emitting a frequency The radiofrequency signal of section, or the radiofrequency signal of a frequency range for transmitting and receiving.Each radio frequency reception port is for receiving The radiofrequency signal of one frequency range.
In the embodiment of the present application, RF receiving and transmission module 21 is for receiving and dispatching the first radiofrequency signal and the second radiofrequency signal.Wherein, The frequency range of first radiofrequency signal includes the first frequency range, and the frequency range of second radiofrequency signal includes the second frequency Section.First frequency range and second frequency range are different frequency range.
It should be noted that frequency division duplex (Frequency can be passed through when RF receiving and transmission module 21 emits radiofrequency signal Division Duplexing, FDD) Mode Launch radiofrequency signal, time division duplex (Time Division can also be passed through Duplexing, TDD) Mode Launch radiofrequency signal.Wherein, under fdd mode, uplink is sent respectively using two independent channels Signal and reception downlink signal, two channels use different frequencies, so as to ensure between uplink signal and downlink signal It does not interfere with each other.Under tdd mode, uplink signal is sent using same channel in different time-gap and receives downlink signal, passes through difference Time slot ensures not interfereing with each other between uplink signal and downlink signal.
In addition it is also necessary to explanation, when RF receiving and transmission module 21 emits radiofrequency signal, frequency range needed for being communicated in addition to transmitting Radiofrequency signal outside, inevitably result from spurious signal.Wherein, spurious signal is not generate product to present communications frequency range The radiofrequency signal of pole effect.The spurious signal may interfere the radiofrequency signal of the other communications bands of electronic equipment.
Therefore, in first radiofrequency signal that RF receiving and transmission module 21 emits, in addition to including penetrating for first frequency range Outside frequency signal, it is also possible to the radiofrequency signal including other frequencies.In second radiofrequency signal that RF receiving and transmission module 21 emits, Other than including the radiofrequency signal of second frequency range, it is also possible to the radiofrequency signal including other frequency ranges.
First filter element 22 is coupled with the RF receiving and transmission module 21.First filter element 22 is for filtering.In this Shen Please be in embodiment, first filter element 22 is used to filter out the first spurious signal in first radiofrequency signal.Wherein, institute The frequency range for stating the first spurious signal includes second frequency range.That is, first filter element 22 can filter out it is described Frequency range is the spurious signal of second frequency range in first radiofrequency signal.
Second filter element 23 is coupled with the RF receiving and transmission module 21.Second filter element 23 is for filtering.In this Shen Please be in embodiment, second filter element 23 is used to filter out the second spurious signal in second radiofrequency signal.Wherein, institute The frequency range for stating the second spurious signal includes first frequency range.That is, second filter element 23 can filter out it is described Frequency range is the spurious signal of first frequency range in second radiofrequency signal.
RF switch 24 is coupled with first filter element 22, the second filter element 23 respectively.The RF switch 24 First filter element 22 and the second filter element 23 can be also turned on.To which institute may be implemented in the RF switch 24 The first radiofrequency signal is stated to polymerize with the second radiofrequency signal carrier wave.
Antenna 25 is coupled with the RF switch.Antenna 25 is used to carry first radiofrequency signal and the second radiofrequency signal Signal after wave polymerization is emitted to the external world, and receives radiofrequency signal from the external world.
To which the RF receiving and transmission module 21, the first filter element 22, RF switch 24, antenna 25 constitute the first signal The transmitting-receiving of first radiofrequency signal may be implemented in access.RF receiving and transmission module 21, the second filter element 23, RF switch 24, Antenna 25 constitutes second signal access, and the transmitting-receiving of second radiofrequency signal may be implemented.
In the embodiment of the present application, when the first radiofrequency signal of RF receiving and transmission module transmitting-receiving, include phase in the second radiofrequency signal It when the signal component of same frequency, is filtered respectively by the filter element in unlike signal access, may be implemented described first The carrier wave polymerization of radiofrequency signal, the second radiofrequency signal carries out carrier wave polymerization so as to improve electronic equipment to radiofrequency signal Diversity.
In some embodiments, as shown in figure 5, the RF receiving and transmission module 21 includes first port 211 and second port 212。
The first port 211 is for receiving and dispatching first radiofrequency signal.Wherein, the first port 211 may include Two subports.When the RF receiving and transmission module 21 receives and dispatches first radiofrequency signal using fdd mode, one of them sub- end Mouth is for emitting first radiofrequency signal, another subport is for receiving first radiofrequency signal.
The second port 212 is for receiving and dispatching second radiofrequency signal.Wherein, the second port 212 also can wrap Include two subports.When the RF receiving and transmission module 21 receives and dispatches second radiofrequency signal using fdd mode, one of son Port is for emitting second radiofrequency signal, another subport is for receiving second radiofrequency signal.
First filter element 22 is coupled with the first port 211 of the RF receiving and transmission module 21.Described first The first radiofrequency signal that filter element 22 emits the first port 211 is filtered.Second filter element 23 and institute The second port 212 for stating RF receiving and transmission module 21 couples.Second filter element 23 emits the second port 212 The second radiofrequency signal be filtered.
In some embodiments, as shown in figure 5, the RF switch 24 includes first input port 241, the second input terminal Mouth 242 and the first output port 243.Wherein, the first input port 241 is coupled with first filter element 22, institute It states the second input port 242 to couple with second filter element 23, first output port 243 and 25 coupling of antenna It closes.The RF switch 24 can be also turned on the first input port 241 and the first output port 243 and described second Input port 242 and the first output port 243, to realize that the carrier wave of first radiofrequency signal and the second radiofrequency signal is poly- It closes.
In some embodiments, first filter element 22 includes the first trapper.Second filter element 23 wraps Include the second trapper.
In some embodiments, the RF receiving and transmission module 21 is penetrated by frequency division duplex (FDD) mode transmitting-receiving described first Frequency signal.Believe that is, the RF receiving and transmission module 21 emits the frequency of first radiofrequency signal and receives first radio frequency Number frequency be different.
Wherein, the frequency range of first radiofrequency signal further includes third frequency range.The highest frequency of the third frequency range Less than the low-limit frequency of first frequency range.That is, the frequency model of the frequency range of the third frequency range and first frequency range It encloses and is not overlapped.
The RF receiving and transmission module 21 by the radiofrequency signal of third frequency range described in frequency division duplex (FDD) Mode Launch and Receive the radiofrequency signal of first frequency range.
In some embodiments, first radiofrequency signal is the radiofrequency signal of B7 (Band 7) frequency range.Described first penetrates The frequency range of frequency signal includes first frequency range and third frequency range.Wherein, the third frequency range include 2500MHz extremely 2570MHz, first frequency range include 2620MHz to 2690MHz.That is, the RF receiving and transmission module 21 emits the first radio frequency When signal, the frequency range of the radiofrequency signal of transmitting includes 2500MHz to 2570MHz.The RF receiving and transmission module 21 receives the When one radiofrequency signal, the frequency range of received radiofrequency signal includes 2620MHz to 2690MHz.
It should be noted that when the RF receiving and transmission module 21 emits the first radiofrequency signal, in the radiofrequency signal of transmitting also It may include the signal of other frequencies, such as be also possible that frequency is greater than the radiofrequency signal of 2570MHz.
In some embodiments, as shown in fig. 6, radio circuit 20 further includes third filter element 26.The third filtering Element 26 is connect with the RF receiving and transmission module 21, the first filter element 22 respectively.At this point, first filter element 22 passes through The realization of third filter element 26 is coupled with the RF receiving and transmission module 21.
Wherein, the third filter element 26 is also used for filtering the first radiofrequency signal that RF receiving and transmission module 21 emits Wave.For example, the third filter element 26 can be used for filtering out first spurious signal in first radiofrequency signal. At this point, being filtered simultaneously to first radiofrequency signal by third filter element 26, the first filter element 22, can be improved The effect of filtering.
In some embodiments, the third filter element 26 is to the described first spuious letter in first radiofrequency signal Number inhibitory effect can achieve 30dBm, first filter element 22 is miscellaneous to described first in first radiofrequency signal The inhibitory effect of scattered signal can achieve 70dBm.To which the third filter element 26, the first filter element 22 filter simultaneously When, it may be implemented to reach 100dBm to the inhibitory effect of first spurious signal in first radiofrequency signal.Wherein, institute The frequency range for stating the first spurious signal includes second frequency range.
In some embodiments, the third filter element 26 includes duplexer.
In some embodiments, the RF receiving and transmission module 21 is penetrated by time division duplex (TDD) mode transmitting-receiving described second Frequency signal.That is, the RF receiving and transmission module 21 emits second radiofrequency signal in different time slots respectively and receives institute State the second radiofrequency signal.
In some embodiments, second radiofrequency signal is the radiofrequency signal of B41 (Band 41) frequency range.It needs to illustrate , the frequency range of B41 frequency range has been redefined in the embodiment of the present application.Wherein, B41 frequency range includes the second frequency range.It is described The frequency range of second frequency range includes 2570MHz to 2620MHz.That is, the RF receiving and transmission module 21 emits the second radio frequency letter Number when frequency range include 2570MHz to 2620MHz, the RF receiving and transmission module 21 receives frequency when the second radiofrequency signal Range also includes 2570MHz to 2620MHz.
It should be noted that when the RF receiving and transmission module 21 emits the second radiofrequency signal, in the radiofrequency signal of transmitting also It may include the signal of other frequencies, such as be also possible that frequency is greater than the radiofrequency signal of 2620MHz.
In some embodiments, as shown in fig. 6, radio circuit 20 further includes the 4th filter element 27.4th filtering Element 27 is connect with the RF receiving and transmission module 21, the second filter element 23 respectively.At this point, second filter element 23 passes through 4th filter element 27 realization is coupled with the RF receiving and transmission module 21.
Wherein, the 4th filter element 27 is also used for filtering the second radiofrequency signal that RF receiving and transmission module 21 emits Wave.For example, the 4th filter element 27 can be used for filtering out second spurious signal in second radiofrequency signal. At this point, being filtered simultaneously to second radiofrequency signal by the 4th filter element 27, the second filter element 23, can be improved The effect of filtering.
In some embodiments, the 4th filter element 27 is to the described second spuious letter in second radiofrequency signal Number inhibitory effect can achieve 30dBm, second filter element 23 to described in second radiofrequency signal and it is miscellaneous The inhibitory effect of scattered signal can achieve 70dBm.To which the 4th filter element 27, the second filter element 23 filter simultaneously When, it may be implemented to reach 100dBm to the inhibitory effect of second spurious signal in second radiofrequency signal.Wherein, institute The frequency range for stating the second spurious signal includes first frequency range.
In some embodiments, the 4th filter element 27 includes filter.
In some embodiments, with reference to Fig. 7, Fig. 8, the first port 211 of RF receiving and transmission module 21 is for receiving and dispatching B7 The radiofrequency signal of frequency range.Wherein, the frequency range for the radiofrequency signal that the first port 211 emits includes 2500MHz- 2570MHz, the frequency range of received radiofrequency signal include 2620MHz-2690MHz.The second port of RF receiving and transmission module 21 212 for receiving and dispatching the radiofrequency signal of B41 frequency range.Wherein, the frequency range of the radiofrequency signal of the transmitting of second port 212 includes 2570MHz-2620MHz, the frequency range of received radiofrequency signal also include 2570MHz-2620MHz.
Wherein, when the first port 211 emits the radiofrequency signal of B7 frequency range, the frequency range packet of the radiofrequency signal of transmitting 2500MHz-2570MHz is included, and includes the spuious letter that frequency range is 2570MHz-2620MHz in the radiofrequency signal emitted Number.When duplexer 26 is filtered, 30dBm can achieve to the inhibitory effect of the spurious signal of 2570MHz-2620MHz.First When trapper 22 is filtered, 70dBm can achieve to the inhibitory effect of the spurious signal of 2570MHz-2620MHz.To most It is emitted in extraneous radiofrequency signal eventually, the signal strength of the spurious signal of 2570MHz-2620MHz is -100dBm or less.This When, the signal strength very little of the spurious signal of 2570MHz-2620MHz will not receive B41 frequency range to the second port 212 Radiofrequency signal interferes, or interferes very little caused by the radiofrequency signal for receiving B41 frequency range.
When the second port 212 emits the radiofrequency signal of B41 frequency range, the frequency range of the radiofrequency signal of transmitting includes 2570MHz-2620MHz, and the spurious signal for being 2620MHz-2690MHz including frequency range in the radiofrequency signal emitted. When filter 27 is filtered, 30dBm can achieve to the inhibitory effect of the spurious signal of 2620MHz-2690MHz.Second falls into When wave device 23 is filtered, 70dBm can achieve to the inhibitory effect of the spurious signal of 2620MHz-2690MHz.To finally It is emitted in extraneous radiofrequency signal, the signal strength of the spurious signal of 2620MHz-2690MHz is -100dBm or less.At this point, The signal strength very little of the spurious signal of 2620MHz-2690MHz, the radio frequency that B7 frequency range will not be received to the first port are believed It number interferes, or interferes very little caused by the radiofrequency signal for receiving B7 frequency range.
Therefore, it in the embodiment of the present application, is wrapped when in the first radiofrequency signal, the second radiofrequency signal of RF receiving and transmission module transmitting-receiving When including the signal component of identical frequency, it is filtered by the filter element in unlike signal access, is not only may be implemented respectively The carrier wave polymerization of first radiofrequency signal, the second radiofrequency signal, while can be penetrated to avoid first radiofrequency signal with second It is interfered with each other between frequency signal, the diversity of carrier wave polymerization is carried out so as to improve electronic equipment to radiofrequency signal.
In some embodiments, as shown in figure 9, radio circuit 20 further includes switching switch 28.Wherein, the switching switch 28 couple with the RF receiving and transmission module 21, the second filter element 23 respectively.The switching switch 28 is for being selectively turned on institute State RF receiving and transmission module 21 or second filter element 23.In the present embodiment, the RF switch 24 is switched with the switching 28 couplings to realize the coupling with second filter element 23, and realize the coupling with RF receiving and transmission module 21.
In the embodiment of the present application, the RF switch 24 can be also turned on first filter element 22 and switching is opened 28 are closed, first filter element 22 can also be only connected, can also only connect the switching switch 28.
When the switching switch 28 connects the second filter element 23, the RF switch 24 is also turned on first filtering When element 22 and switching switch 28, the RF switch 24 realizes that first radiofrequency signal and the second radiofrequency signal carrier wave are poly- It closes.
When 24 connection first filter elements 22 of the RF switch, the RF switch 24 realizes described first The non-carrier polymerization of radiofrequency signal.
Second filter element 23 is disconnected when the switching switch 28 connects the RF receiving and transmission module 21, it is described to penetrate When 24, the switch connection switching switches 28 of frequency, the RF switch 24 realizes the non-carrier poly- of second radiofrequency signal It closes.
In some embodiments, it is described when the RF receiving and transmission module 21 includes first port 211 and second port 212 Switching switch 28 is coupled with the second port 212 of the RF receiving and transmission module 21, as shown in Figure 9.
In some embodiments, the RF switch 24 include first input port 241, the second input port 242 and When the first output port 243, second input port 242 is coupled with the switching switch 28, as shown in Figure 9.
In some embodiments, as shown in figure 9, the switching switch 28 includes third input port 281, the 4th input terminal Mouth 282 and second output terminal mouth 283.Wherein, the third input port 281 is coupled with the RF receiving and transmission module 21.Institute The 4th input port 282 is stated to couple with second filter element 23.The second output terminal mouth 283 and the RF switch 24 Coupling.
Specifically, the third input port 281 is coupled with the second port 212 of the RF receiving and transmission module 21.It is described 4th input port 282 is coupled with second filter element 23.The second output terminal mouth 283 and the RF switch 24 The coupling of second input port 242.
In some embodiments, the switching switch 28 includes single-pole double-throw switch (SPDT).
In some embodiments, as shown in Figure 10, radio circuit 20 further includes the 5th filter element 29.5th filtering Element 29 is connect with the RF receiving and transmission module 21, switching switch 28 respectively.To which the switching switch 28 passes through the described 5th The realization of filter element 29 is coupled with the RF receiving and transmission module 21.
Second radiofrequency signal that 5th filter element 29 is used to receive and dispatch the RF receiving and transmission module 21 carries out Filtering, to filter out the spurious signal in second radiofrequency signal.
In some embodiments, the 5th filter element 29 includes filter.
In the embodiment of the present application, when the first radiofrequency signal of RF receiving and transmission module transmitting-receiving, include phase in the second radiofrequency signal It when the signal component of same frequency, is filtered, not only be may be implemented described by the filter element in unlike signal access respectively The carrier wave polymerization of first radiofrequency signal, the second radiofrequency signal, can also avoid first radiofrequency signal and the second radiofrequency signal Between interfere with each other, while the non-carrier polymerization of first radiofrequency signal or the second radiofrequency signal also may be implemented, so as to The diversity of carrier wave polymerization or non-carrier polymerization is carried out to improve electronic equipment to radiofrequency signal.
Radio circuit provided by the embodiments of the present application and electronic equipment are described in detail above.It is used herein The principle and implementation of this application are described for specific case, and the above embodiments are only used to help understand originally Application.Meanwhile for those skilled in the art, according to the thought of the application, in specific embodiments and applications It will change, in conclusion the contents of this specification should not be construed as limiting the present application.

Claims (15)

1. a kind of radio circuit, which is characterized in that including:
RF receiving and transmission module, for receiving and dispatching the first radiofrequency signal and the second radiofrequency signal, the frequency model of first radiofrequency signal It encloses including the first frequency range, the frequency range of second radiofrequency signal includes the second frequency range;
First filter element is coupled with the RF receiving and transmission module, and first filter element is for filtering out first radio frequency The first spurious signal in signal, the frequency range of first spurious signal include second frequency range;
Second filter element is coupled with the RF receiving and transmission module, and second filter element is for filtering out second radio frequency The second spurious signal in signal, the frequency range of second spurious signal include first frequency range;
Switching switch, couples with the RF receiving and transmission module, the second filter element respectively, and the switching switch connects for selectivity Lead to the RF receiving and transmission module or second filter element;
RF switch is coupled with first filter element, switching switch respectively, and the RF switch is for realizing described first Radiofrequency signal polymerize with the second radiofrequency signal carrier wave or non-carrier polymerization;
Antenna is coupled with the RF switch.
2. radio circuit according to claim 1, which is characterized in that the RF receiving and transmission module includes first port and Two-port netwerk, the first port is for receiving and dispatching first radiofrequency signal, and the second port is for receiving and dispatching second radio frequency Signal;
First filter element is coupled with the first port of the RF receiving and transmission module, second filter element and institute State the second port coupling of RF receiving and transmission module, the second port of the switching switch and the RF receiving and transmission module Coupling.
3. radio circuit according to claim 1, which is characterized in that the RF switch includes first input port, Two input ports and the first output port;
The first input port is coupled with first filter element, and second input port and the switching switch coupling It closes, first output port is coupled with the antenna.
4. radio circuit according to claim 1, which is characterized in that switching switch includes third input port, the Four input ports and second output terminal mouth;
The third input port is coupled with the RF receiving and transmission module, the 4th input port and second filter element Coupling, the second output terminal mouth are coupled with the RF switch.
5. radio circuit according to any one of claims 1 to 4, which is characterized in that first filter element includes the One trapper, second filter element include the second trapper.
6. radio circuit according to any one of claims 1 to 4, which is characterized in that the RF receiving and transmission module passes through frequency Dual-mode is divided to receive and dispatch first radiofrequency signal.
7. radio circuit according to claim 6, which is characterized in that the frequency range of first radiofrequency signal further includes Third frequency range, the RF receiving and transmission module emit the radiofrequency signal of the third frequency range by mode of frequency division duplexing and receive institute State the radiofrequency signal of the first frequency range.
8. radio circuit according to claim 7, which is characterized in that the third frequency range include 2500MHz extremely 2570MHz, first frequency range include 2620MHz to 2690MHz.
9. radio circuit according to claim 6, which is characterized in that it further include third filter element, the third filtering Element is connect with the RF receiving and transmission module, the first filter element respectively.
10. radio circuit according to claim 9, which is characterized in that the third filter element includes duplexer.
11. radio circuit according to any one of claims 1 to 4, which is characterized in that when the RF receiving and transmission module passes through Dual-mode is divided to receive and dispatch second radiofrequency signal.
12. radio circuit according to claim 11, which is characterized in that second frequency range include 2570MHz extremely 2620MHz。
13. radio circuit according to claim 11, which is characterized in that it further include the 4th filter element, the 4th filter Wave element is connect with the RF receiving and transmission module, the second filter element respectively.
14. radio circuit according to claim 11, which is characterized in that it further include the 5th filter element, the 5th filter Wave element is connected with the RF receiving and transmission module, switching switch respectively.
15. a kind of electronic equipment, which is characterized in that including shell and the circuit board for being mounted on the enclosure interior, the circuit Radio circuit is provided on plate, the radio circuit is the described in any item radio circuits of claim 1 to 14.
CN201810497051.8A 2018-05-22 2018-05-22 Radio frequency circuit and electronic equipment Active CN108880571B (en)

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CN111162802A (en) * 2019-12-31 2020-05-15 联想(北京)有限公司 Electronic equipment and signal transmission method

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CN105656610A (en) * 2015-12-30 2016-06-08 宇龙计算机通信科技(深圳)有限公司 Radio frequency circuit and terminal for realizing carrier aggregation
CN107113793A (en) * 2014-10-31 2017-08-29 华为技术有限公司 It polymerize the channel mapping of the wireless forward pass of non-touch
CN107359894A (en) * 2017-06-30 2017-11-17 广东欧珀移动通信有限公司 Radio circuit, antenna assembly and electronic equipment

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CN107113793A (en) * 2014-10-31 2017-08-29 华为技术有限公司 It polymerize the channel mapping of the wireless forward pass of non-touch
CN105162491A (en) * 2015-09-22 2015-12-16 广东欧珀移动通信有限公司 Antenna and control method for radiofrequency signals transmitted by antenna
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