CN107231167A - The electronic equipment of radio circuit - Google Patents

Abstract

The disclosure relates to a radio frequency circuit and electronic equipment. The radio frequency circuit includes: an antenna switch module, a quadruplexer, a power amplifier and a transceiver. The quadruplexer operates in three frequency bands, and the quadruplexer includes two transmit filters and two A receiving filter, the first transmitting filter is used to filter the two frequency bands of the three frequency bands, and the second transmitting filter is used to filter the two frequency bands except the two frequency bands of the three frequency bands. Filter the remaining frequency band of the three frequency bands, the first receiving filter is used to filter the two frequency bands of the three frequency bands that have the inclusion relationship of the receiving frequency, and the second filter is used to filter the remaining one of the three frequency bands except the receiving frequency. The frequency band is filtered. By sharing one filter with two frequency bands having a containment relationship, the electronic device can be operated in three frequency bands through a quadruplexer, which reduces the hardware cost of the electronic device and saves PCB area.

Description

Electronic equipment for radio frequency circuits

technical field

The present disclosure relates to electronic equipment technology, in particular to a radio frequency circuit and electronic equipment.

Background technique

Different countries and different operators support different communication frequency bands. Currently, there are as many as 44 frequency band combinations in the global 4G range, and more than 200 4G+ combinations. In order to make electronic devices (mobile phones, tablet computers, etc.) work in different countries and regions and under different network standards, the more frequency bands and network standards that electronic devices can support, the better. With the advancement of technology, devices are miniaturized and integrated With the trend of globalization, electronic devices can support more and more frequency bands.

The 3GPP protocol stipulates the transmitting and receiving frequencies of each frequency band (band), and requires that the in-band insertion loss be as small as possible and the out-of-band suppression be as large as possible during hardware circuit design. Usually each frequency band has a separate hardware channel. For example, in an FDD system, FDD uses two independent channels for transmission and reception, and FDD transmission and reception work at the same time. In order to prevent adjacent transmitters and receivers from Mutual interference occurs between each frequency band. Usually, each frequency band will use a duplexer to achieve filtering. Its function is to isolate the transmitted signal from the received signal to ensure that both reception and transmission can work normally at the same time.

Contents of the invention

In order to overcome the problems existing in the related art, the present disclosure provides a radio frequency circuit and electronic equipment.

According to a first aspect of an embodiment of the present disclosure, a radio frequency circuit is provided, and the radio frequency circuit includes: an antenna switch module, a quadruplexer, a power amplifier, and a transceiver;

The antenna switch module is connected to the input port of the quadruplexer, which is used to control the radio frequency circuit to switch between different frequency bands;

The quadplexer works in three frequency bands. The quadplexer includes two transmit filters and two receive filters. The first transmit filter and the second transmit filter are connected to the transceiver through the power amplifier. The first receive filter and the The second receive filter is directly connected with the transceiver, the first transmit filter is used to filter the two frequency bands of the transmit frequency in the three frequency bands, and the second transmit filter is used to filter the three frequency bands except the transmit frequency has contain Filter the remaining frequency band outside the two frequency bands of the relationship, the first receiving filter is used to filter the two frequency bands of the receiving frequency in the three frequency bands, and the second receiving filter is used to filter the receiving frequency in the three frequency bands Filter with the remaining frequency band outside the inclusion relationship;

The power amplifier is used to amplify the transmit signal output by the transceiver and send it to the first transmit filter and the second transmit filter;

Transceivers are used to transmit and receive signals.

Optionally, the inclusion relationship of the transmission frequencies includes: the transmission frequencies of the two frequency bands are the same, or the transmission frequency of one frequency band is a subset of the transmission frequencies of the other frequency band;

The inclusion relationship of the receiving frequencies includes: the receiving frequencies of the two frequency bands are the same, or the receiving frequencies of one frequency band are a subset of the receiving frequencies of the other frequency band.

Optionally, the bandwidth of the first transmit filter is the bandwidth of the frequency band with the larger bandwidth of the transmit frequency among the two frequency bands whose transmit frequencies have an inclusion relationship, and the first receive filter is the bandwidth of the frequency band in the two frequency bands whose receive frequencies have an inclusion relationship. The bandwidth of the frequency is larger than the bandwidth.

Optionally, the three frequency bands include: band1, band3 and band4, where the transmit frequency of band1 is 1920MHz-1980MHz, the receive frequency of band1 is 2110MHz-2170MHz, the transmit frequency of band3 is 1710MHz-1785MHz, and the receive frequency of band3 is 1805MHz -1880MHz, the transmit frequency of band4 is 1710MHz-1755MHz, and the receive frequency of band4 is 2110MHz-2155MHz;

The two frequency bands in which the transmitting frequency has an inclusive relationship include: band3 and band4, and the two frequency bands in which the receiving frequency has an inclusive relationship include band1 and band4.

According to a second aspect of an embodiment of the present disclosure, an electronic device is provided, including a radio frequency circuit, and the radio frequency circuit includes: an antenna switch module, a quadruplexer, a power amplifier, and a transceiver;

The antenna switch module is connected to the input port of the quadruplexer, which is used to control the radio frequency circuit to switch between different frequency bands;

The quadplexer works in three frequency bands. The quadplexer includes two transmit filters and two receive filters. The first transmit filter and the second transmit filter are connected to the transceiver through the power amplifier. The first receive filter and the The second receive filter is directly connected with the transceiver, the first transmit filter is used to filter the two frequency bands of the transmit frequency in the three frequency bands, and the second transmit filter is used to filter the three frequency bands except the transmit frequency has contain Filter the remaining frequency band outside the two frequency bands of the relationship, the first receiving filter is used to filter the two frequency bands of the receiving frequency in the three frequency bands, and the second receiving filter is used to filter the receiving frequency in the three frequency bands Filter with the remaining frequency band outside the inclusion relationship;

The power amplifier is used to amplify the transmit signal output by the transceiver and send it to the first transmit filter and the second transmit filter;

Transceivers are used to transmit and receive signals.

Optionally, the inclusion relationship of the transmission frequencies includes: the transmission frequencies of the two frequency bands are the same, or the transmission frequency of one frequency band is a subset of the transmission frequencies of the other frequency band;

The inclusion relationship of the receiving frequencies includes: the receiving frequencies of the two frequency bands are the same, or the receiving frequencies of one frequency band are a subset of the receiving frequencies of the other frequency band.

Optionally, the bandwidth of the first transmit filter is the bandwidth of the frequency band with the larger bandwidth of the transmit frequency among the two frequency bands whose transmit frequencies have an inclusion relationship, and the first receive filter is the bandwidth of the frequency band in the two frequency bands whose receive frequencies have an inclusion relationship. The bandwidth of the frequency is larger than the bandwidth.

Optionally, the three frequency bands include: band1, band3 and band4, where the transmit frequency of band1 is 1920MHz-1980MHz, the receive frequency of band1 is 2110MHz-2170MHz, the transmit frequency of band3 is 1710MHz-1785MHz, and the receive frequency of band3 is 1805MHz -1880MHz, the transmit frequency of band4 is 1710MHz-1755MHz, and the receive frequency of band4 is 2110MHz-2155MHz;

The two frequency bands in which the transmitting frequency has an inclusive relationship include: band3 and band4, and the two frequency bands in which the receiving frequency has an inclusive relationship include band1 and band4.

The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: the radio frequency circuit includes: an antenna switch module, a quadruplexer, a power amplifier and a transceiver, the quadruplexer operates in three frequency bands, and the quadruplexer includes two transmission filter filter and two receiving filters, the first transmitting filter is used to filter the two frequency bands that have the inclusion relationship of the transmission frequency among the three frequency bands, and the second transmission filter is used to filter the two frequency bands that have the inclusion relationship except the transmission frequency among the three frequency bands The remaining frequency band outside the first frequency band is used for filtering, the first receiving filter is used to filter the two frequency bands of the three frequency bands, and the second filter is used to filter the three frequency bands except for the receiving frequency. The remaining frequency band is filtered. Therefore, the electronic device can be operated in three frequency bands through a quadruplexer, which reduces the hardware cost of the electronic device and saves the area of the PCB.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.

Fig. 1 is a structural diagram of a radio frequency circuit according to an exemplary embodiment.

Fig. 2 is a schematic diagram of a radio frequency circuit in the prior art.

Fig. 3 is a schematic diagram of another radio frequency circuit in the prior art.

Fig. 4 is a block diagram of an electronic device according to an exemplary embodiment.

Fig. 5 is a block diagram of an electronic device according to an exemplary embodiment.

detailed description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

Fig. 1 is a structural diagram of a radio frequency circuit shown according to an exemplary embodiment. The radio frequency circuit is used in an electronic device, and the electronic device may be a tablet computer, a mobile phone, etc. As shown in Fig. 1 , the radio frequency circuit includes: Antenna Switch Module (ASM for short) 11 , quadruplexer 12 , power amplifier (Power Amplifier, PA for short) 13 and transceiver (transceiver) 14 .

The antenna switch module 11 is used for the radio frequency front end of the electronic equipment, and the module can realize switching between different frequency bands (dual frequency, triple frequency, quadruple frequency) and different modes (receiving and transmitting) through frequency division and time division. A multiplexer is a general term for devices such as duplexers, triplexers, and quadruplexers. A multiplexer has a single input port and multiple output ports. A multiplexer is a set of non-superimposed filters. These filters In combination, it is ensured that they do not load each other, and that the outputs are highly isolated. The quadruplexer 12 in this embodiment includes one input port and four output ports, two output ports are used for receiving signals, and two output ports are used for transmitting signals. A duplexer consists of two (transmit and receive) filters combined to share a common node (antenna), allowing devices to transmit (Tx) and receive (Rx) at the same time. The quadplexer combines four filters (transmit and receive) and shares one node. The passband loading and isolation goals of the quadplexer are the same as those of the duplexer.

In this embodiment, the antenna switch module 11 is connected to the input port of the quadruplexer 12 for controlling the radio frequency circuit to switch between different frequency bands. The quadplexer 12 works in three frequency bands, the quadplexer 12 includes two transmit filters and two receive filters, the first transmit filter 121 and the second transmit filter 122 are connected to the transceiver 14 through the power amplifier 13, The first receive filter 123 and the second receive filter 124 are directly connected with the transceiver 14, and the first transmit filter 121 is used to filter two frequency bands with a transmission frequency in the three frequency bands, and the second transmit filter 122 is used to filter the remaining one frequency band except the two frequency bands whose transmission frequency has an inclusion relationship among the three frequency bands, and the first receiving filter 123 is used to filter the two frequency bands whose reception frequency has an inclusion relationship among the three frequency bands , the second receiving filter 124 is used to filter the remaining one of the three frequency bands except that the receiving frequency has an inclusion relationship.

The power amplifier 13 is used for amplifying the transmit signal output by the transceiver 14 and then sending it to the first transmit filter 121 and the second transmit filter 122, and the transceiver 14 is used for transmitting and receiving signals.

In this embodiment, the inclusion relationship of the transmission frequencies includes: the transmission frequencies of the two frequency bands are the same, or the transmission frequency of one frequency band is a subset of the transmission frequency of the other frequency band. The inclusion relationship of the receiving frequencies includes: the receiving frequencies of the two frequency bands are the same, or the receiving frequencies of one frequency band are a subset of the receiving frequencies of the other frequency band. For example, three frequency bands include: band1, band3, and band4. Generally, three frequency bands of band1, band3, and band4 are used on mobile phones at the same time. Among them, the transmitting frequency of band1 is 1920MHz-1980MHz, the receiving frequency of band1 is 2110MHz-2170MHz, and the transmitting frequency of band3 The frequency is 1710MHz-1785MHz, the receiving frequency of band3 is 1805MHz-1880MHz, the transmitting frequency of band4 is 1710MHz-1755MHz, and the receiving frequency of band4 is 2110MHz-2155MHz.

By comparison, it can be seen that the transmit frequency of band4 is a subset of the transmit frequency of band3, and the receive frequency of band4 is a subset of the receive frequency of band1, then band4 and band3 can share a transmit filter, and band1 and band4 can share a receive filter ,, RX in the figure means receiving, TX means transmitting, TRX means transmitting and receiving.

It should be emphasized that because electronic devices use different frequency bands in different countries and regions, there are currently more than 40 4G frequency points used worldwide. Therefore, the three frequency bands can also be band1, band3 and band4. For other frequency bands, as long as the transmission frequencies of two frequency bands in the three frequency bands have an inclusion relationship, and the reception frequencies of two frequency points in the three frequency bands have an inclusion relationship, the radio frequency circuit of the present invention can be used.

In this embodiment, the bandwidth of the first transmit filter 121 is the bandwidth of the frequency band with the larger bandwidth of the transmit frequency among the two frequency bands whose transmit frequencies have an inclusion relationship, and the first receive filter 123 is the bandwidth of the two frequency bands whose receive frequencies have an inclusion relationship. The bandwidth of the receiving frequency in the frequency band is larger. For example, when the two frequency bands in which the transmit frequency has an inclusion relationship include: band3 and band4, the bandwidth of the first transmit filter 121 is 1710 MHz-1785 MHz of the transmit frequency of band3. When the two frequency bands in which the receiving frequency has an inclusion relationship include band1 and band4, the bandwidth of the first receiving filter 123 is 2110 MHz-2170 MHz of the receiving frequency of band1.

With the radio frequency circuit of this embodiment, the electronic device only needs one quadruplexer to make the electronic device work in three frequency bands, reducing the hardware cost of the mobile phone and saving the area of the printed circuit board (PCB). Fig. 2 is a schematic diagram of a radio frequency circuit in the prior art. The radio frequency circuit is to realize that electronic equipment can work in band1, band3 and band4. As shown in Fig. 2, the radio frequency circuit includes: an antenna switch module 21, a first dual A duplexer 22, a second duplexer 23, a third duplexer 24, a power amplifier 25 and a transceiver 26, the first duplexer 22 is used to filter the transmit frequency and the receive frequency of band1, and the second duplexer 23 is used to filter the transmission frequency and reception frequency of band3, and the third duplexer 24 is used to filter the transmission frequency and reception frequency of band4. In the figure, RX indicates reception, TX indicates transmission, and TRX indicates transmission and reception.

Fig. 3 is the schematic diagram of another kind of radio frequency circuit in the prior art, and this radio frequency circuit also is to realize that electronic equipment can work in band1, band3 and band4, as shown in Fig. 3, this radio frequency circuit comprises: antenna switch module 31, duplex 32, a quadruplexer 33, a power amplifier 34 and a transceiver 35, the duplexer 32 is used to filter the transmit frequency and receive frequency of band4, and the quadruplexer 33 is used to filter the transmit frequency and receive frequency of band1 and band3 Filtering, RX in the figure means receiving, TX means transmitting, TRX means transmitting and receiving.

By comparing the radio frequency circuits provided in Figure 1, Figure 2, and Figure 3, they also work in three frequency bands band1, band3, and band4. The existing solution shown in Figure 2 requires three duplexers to be implemented. The solution in the prior art requires a duplexer and a quadruplexer, but the solution of the present invention can be realized only by a quadruplexer, which saves hardware equipment and saves PCB area at the same time.

In the embodiment of the present disclosure, the radio frequency circuit includes: an antenna switch module, a quadruplexer, a power amplifier, and a transceiver. The quadruplexer operates in three frequency bands. The quadruplexer includes two transmit filters and two receive filters. A transmit filter is used to filter the two frequency bands of the three frequency bands whose transmit frequencies have an inclusion relationship, and a second transmit filter is used to filter the remaining frequency band of the three frequency bands except for the two frequency bands whose transmit frequencies have an inclusion relationship , the first receiving filter is used to filter the two frequency bands of the three frequency bands having the inclusion relationship of the receiving frequency, and the second filter is used to filter the remaining one of the three frequency bands except the receiving frequency having the inclusion relationship. Therefore, the electronic device can be operated in three frequency bands through a quadruplexer, which reduces the hardware cost of the electronic device and saves the area of the PCB.

Fig. 4 is a block diagram of an electronic device shown according to an exemplary embodiment. As shown in Fig. 4, the electronic device 400 includes a radio frequency circuit 4, and the radio frequency circuit 4 includes: an antenna switch module 41, a quadruplexer 42, a power amplifier 43 and transceiver 44.

The antenna switch module 41 is connected to the input port of the quadruplexer 42 for controlling the radio frequency circuit 4 to switch between different frequency bands.

The quadruplexer 42 works in three frequency bands. The quadruplexer 42 includes two transmit filters and two receive filters. The first transmit filter and the second transmit filter are connected to the transceiver through a power amplifier, and the first receive filter The receiver and the fourth receiving filter are directly connected with the transceiver, the first transmitting filter is used to filter the two frequency bands in which the transmitting frequency has an inclusion relationship among the three frequency bands, and the second transmitting filter is used to filter the three frequency bands except for the transmitting frequency Filter the remaining frequency bands except the two frequency bands that have an inclusion relationship, the first receiving filter is used to filter the two frequency bands that have an inclusion relationship among the receiving frequencies in the three frequency bands, and the second receiving filter is used to filter the three frequency bands except The reception frequency has the remaining one frequency band out of the inclusion relationship for filtering.

The power amplifier 43 is used to amplify the transmission signals output by the first transmission filter and the second transmission filter and then send them to the transceiver 44, and the transceiver 44 is used for transmitting and receiving signals.

Wherein, the inclusion relationship of the transmission frequency includes: the transmission frequency of the two frequency bands is the same, or, the transmission frequency of one frequency band is a subset of the transmission frequency of the other frequency band; the inclusion relationship of the reception frequency includes: the reception frequency of the two frequency bands is the same , or, the reception frequencies of one of the frequency bands are a subset of the reception frequencies of the other frequency band.

Wherein, the bandwidth of the first transmit filter is the bandwidth of the frequency band with the larger bandwidth of the transmit frequency among the two frequency bands whose transmit frequency has an inclusion relationship, and the first receive filter is the bandwidth of the receive frequency in the two frequency bands whose receive frequency has an inclusion relationship. A larger bandwidth.

Optionally, the three frequency bands include: band1, band3 and band4, where the transmit frequency of band1 is 1920MHz-1980MHz, the receive frequency of band1 is 2110MHz-2170MHz, the transmit frequency of band3 is 1710MHz-1785MHz, and the receive frequency of band3 is 1805MHz -1880MHz, the transmit frequency of band4 is 1710MHz-1755MHz, and the receive frequency of band4 is 2110MHz-2155MHz;

Correspondingly, the two frequency bands in which the transmitting frequency has an inclusive relationship include: band3 and band4, and the two frequency bands in which the receiving frequency has an inclusive relationship include band1 and band4.

Fig. 5 is a block diagram of an electronic device according to an exemplary embodiment. For example, the electronic device 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.

5, electronic device 800 may include one or more of the following components: processing component 802, memory 804, power supply component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814 , and the communication component 816.

The processing component 802 generally controls the overall operations of the electronic device 800, such as those associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above method. Additionally, processing component 802 may include one or more modules that facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802 .

The memory 804 is configured to store various types of data to support operations at the device 800 . Examples of such data include instructions for any application or method operating on the electronic device 800, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.

The power supply component 806 provides power to various components of the electronic device 800 . Power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for electronic device 800 .

The multimedia component 808 includes a screen providing an output interface between the electronic device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or swipe action, but also detect duration and pressure associated with the touch or swipe action. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. When the device 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a microphone (MIC), which is configured to receive external audio signals when the electronic device 800 is in operation modes, such as call mode, recording mode and voice recognition mode. Received audio signals may be further stored in memory 804 or sent via communication component 816 . In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.

Sensor assembly 814 includes one or more sensors for providing status assessments of various aspects of electronic device 800 . For example, the sensor component 814 can detect the open/closed state of the device 800, the relative positioning of components, such as the display and the keypad of the electronic device 800, the sensor component 814 can also detect the electronic device 800 or a component of the electronic device 800 Changes in the position of , presence or absence of user contact with the electronic device 800 , orientation or acceleration/deceleration of the electronic device 800 and temperature changes of the electronic device 800 . Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. Sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

The communication component 816 is configured to facilitate wired or wireless communication between the electronic device 800 and other devices. The electronic device 800 can access a wireless network based on communication standards, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wide Band (UWB) technology, Bluetooth (BT) technology and other technologies.

In an exemplary embodiment, electronic device 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic implementation.

In an exemplary embodiment, the communication component 816 includes a radio frequency circuit, and the radio frequency circuit may be the radio frequency circuit shown in FIG. 1 above.

Other embodiments of the invention will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present invention, these modifications, uses or adaptations follow the general principles of the present invention and include common knowledge or conventional technical means in the technical field not disclosed in this disclosure . The specification and examples are to be considered exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It should be understood that the present invention is not limited to the precise constructions which have been described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (8)

1. a kind of radio circuit, it is characterised in that including：Antenna switch module, four work devices, power amplifier and transmitting-receiving Device；

The antenna switch module is connected with the input port of the four works device, for controlling the radio circuit in different frequencies Switch between section；

The four works device is operated in three frequency ranges, and the four works device includes two emission filters and two receiving filters, the One emission filter and the second emission filter are connected by the power amplifier with the transceiver, the first receiving filter Directly it is connected with the second receiving filter with the transceiver, first emission filter is used for being sent out in three frequency ranges Two frequency ranges that radio frequency rate has inclusion relation are filtered, and second emission filter is used for being removed in three frequency ranges There is tranmitting frequency one frequency range of residue outside two frequency ranges of inclusion relation to be filtered, and first receiving filter is used for Two frequency ranges that receives frequency in three frequency ranges has inclusion relation are filtered, second receiving filter is used for One frequency range of residue in three frequency ranges in addition to receives frequency has inclusion relation is filtered；

The power amplifier is used to be sent to the first transmitting filtering after being amplified the transmission signal that transceiver is exported Device and second emission filter；

The transceiver is used to launch and receive signal.

2. radio circuit according to claim 1, it is characterised in that there is the tranmitting frequency inclusion relation to include： The tranmitting frequency of two frequency ranges is identical, or, the tranmitting frequency of one of frequency range is the son of the tranmitting frequency of another frequency range Collection；

There is the receives frequency inclusion relation to include：The receives frequency of two frequency ranges is identical, or, one of frequency range Receives frequency is the subset of the receives frequency of another frequency range.

3. radio circuit according to claim 1 or 2, it is characterised in that the bandwidth of first emission filter There is the bandwidth of the larger frequency range of the bandwidth of tranmitting frequency in two frequency ranges of inclusion relation, described first for the tranmitting frequency Receiving filter is that the receives frequency has the larger bandwidth of the bandwidth of receives frequency in two frequency ranges of inclusion relation.

4. the radio circuit according to any one of claim 1-3, it is characterised in that three frequency ranges include： Band1, band3 and band4, wherein, band1 tranmitting frequency is 1920MHz-1980MHz, band1 reception Frequency is 2110MHz-2170MHz, and band3 tranmitting frequency is 1710MHz-1785MHz, and band3's connects Receipts frequency is 1805MHz-1880MHz, and band4 tranmitting frequency is 1710MHz-1755MHz, band4's Receives frequency is 2110MHz-2155MHz；

Two frequency ranges that the tranmitting frequency has inclusion relation include：Band3 and band4, the receives frequency has bag Two frequency ranges containing relation include band1 and band4.

5. a kind of electronic equipment, it is characterised in that including radio circuit, the radio circuit includes：Antenna switch module, Four work devices, power amplifier and transceiver；

The antenna switch module is connected with the input port of the four works device, for controlling the radio circuit in different frequencies Switch between section；

The four works device is operated in three frequency ranges, and the four works device includes two emission filters and two receiving filters, the One emission filter and the second emission filter are connected by the power amplifier with the transceiver, the first receiving filter Directly it is connected with the second receiving filter with the transceiver, first emission filter is used for being sent out in three frequency ranges Two frequency ranges that radio frequency rate has inclusion relation are filtered, and second emission filter is used for being removed in three frequency ranges There is tranmitting frequency one frequency range of residue outside two frequency ranges of inclusion relation to be filtered, and first receiving filter is used for Two frequency ranges that receives frequency in three frequency ranges has inclusion relation are filtered, second receiving filter is used for One frequency range of residue in three frequency ranges in addition to receives frequency has inclusion relation is filtered；

The power amplifier is used to be sent to the first transmitting filtering after being amplified the transmission signal that transceiver is exported Device and second emission filter；

The transceiver is used to launch and receive signal.

6. electronic equipment according to claim 5, it is characterised in that there is the tranmitting frequency inclusion relation to include： The tranmitting frequency of two frequency ranges is identical, or, the tranmitting frequency of one of frequency range is the son of the tranmitting frequency of another frequency range Collection；

There is the receives frequency inclusion relation to include：The receives frequency of two frequency ranges is identical, or, one of frequency range Receives frequency is the subset of the receives frequency of another frequency range.

7. the electronic equipment according to claim 5 or 6, it is characterised in that the bandwidth of first emission filter There is the bandwidth of the larger frequency range of the bandwidth of tranmitting frequency in two frequency ranges of inclusion relation, described first for the tranmitting frequency Receiving filter is that the receives frequency has the larger bandwidth of the bandwidth of receives frequency in two frequency ranges of inclusion relation.

8. the electronic equipment according to any one of claim 5-7, it is characterised in that three frequency ranges include： Band1, band3 and band4, wherein, band1 tranmitting frequency is 1920MHz-1980MHz, band1 reception Frequency is 2110MHz-2170MHz, and band3 tranmitting frequency is 1710MHz-1785MHz, and band3's connects Receipts frequency is 1805MHz-1880MHz, and band4 tranmitting frequency is 1710MHz-1755MHz, band4's Receives frequency is 2110MHz-2155MHz；

Two frequency ranges that the tranmitting frequency has inclusion relation include：Band3 and band4, the receives frequency has bag Two frequency ranges containing relation include band1 and band4.