WO2022028303A1 - 射频电路和电子设备 - Google Patents
射频电路和电子设备 Download PDFInfo
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- WO2022028303A1 WO2022028303A1 PCT/CN2021/109234 CN2021109234W WO2022028303A1 WO 2022028303 A1 WO2022028303 A1 WO 2022028303A1 CN 2021109234 W CN2021109234 W CN 2021109234W WO 2022028303 A1 WO2022028303 A1 WO 2022028303A1
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- 230000006855 networking Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- the present application belongs to the field of communication technologies, and specifically relates to a radio frequency circuit and an electronic device.
- the radio frequency circuits of electronic devices such as mobile phones and tablets need to be compatible with different standards. Therefore, the radio frequency circuits of electronic devices generally have at least two different paths, for example, one path is used for Internet communication, and the other Channels are used for voice calls.
- one path is used for Internet communication
- the other Channels are used for voice calls.
- the performance of each path can be affected compared to when a single path is operating.
- the purpose of the embodiments of the present application is to provide a radio frequency circuit and an electronic device, which can solve the problem that the performance of each channel is affected when multiple channels work simultaneously in the radio frequency circuit.
- an embodiment of the present application provides a radio frequency circuit, including a radio frequency transceiver, a combiner, a first channel, a second channel, and a first antenna unit;
- the radio frequency transceiver includes a first transmit port and a second transmit port; the combiner has a first input end, a second input end and an output end; the first transmit port communicates with the the first input end of the combiner is connected, the second transmit port is connected to the second input end of the combiner through the second channel, and the output end of the combiner is connected to the first antenna unit connect;
- the isolation degree between the first input terminal and the second input terminal is greater than or equal to the frequency band isolation degree between the first channel and the second channel.
- an embodiment of the present application provides an electronic device, including the radio frequency circuit described in the first aspect.
- the radio frequency circuit in the embodiment of the present application can realize simultaneous operation of multiple channels, and the performance of each channel will not be affected.
- FIG. 1 is a schematic structural diagram of a radio frequency circuit provided by an embodiment of the present application.
- FIG. 2 is one of the schematic diagrams of the working principles of the radio frequency circuit provided by the embodiment of the present application.
- FIG. 3 is the second schematic diagram of the working principle of the radio frequency circuit provided by the embodiment of the present application.
- first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between “first”, “second”, etc.
- the objects are usually of one type, and the number of objects is not limited.
- the first object may be one or more than one.
- “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
- a radio frequency circuit includes a radio frequency transceiver 1, a combiner 2, a first path 3, a second path 4 and a first antenna unit 5;
- the radio frequency transceiver 1 includes a first transmit port 11 and a second transmit port 12; the combiner 2 has a first input end 21, a second input end 22 and an output end 23; The first input end 21 of the combiner 2 is connected, the second transmit port 12 is connected to the second input end 22 of the combiner 2 through the second channel 4, and the output end 23 of the combiner 2 is connected to the first antenna unit 5;
- the isolation degree between the first input terminal 21 and the second input terminal 22 is greater than or equal to the frequency band isolation degree between the first channel 3 and the second channel 4 .
- the radio frequency transceiver 1 may also be referred to as a radio frequency chip (wafer transceiver, WTR).
- WTR radio frequency chip
- the combiner 2 can be a three-port device, one end (ie the first input end 21 ) is connected to the first channel 3 , one end (ie the second input end 22 ) is connected to the second channel 4 , and the common end (ie the output end 23 ) is connected to the antenna (ie the first antenna unit 5).
- the first antenna unit 5 may include two antenna interfaces (Antenna hardware interface, ANT), namely ANT1 and ANT2.
- ANT antenna hardware interface
- a double pole double throw switch (Double Pole Double Throw, DPDT) can also be set in the radio frequency circuit, and the output end 23 of the combiner 2 can be connected to the above-mentioned ANT1 and ANT2 through the DPDT.
- the radio frequency circuit usually includes a low frequency band (Low Band, LB or L-band) channel, an intermediate frequency band (Middle Band, MB or M-band) channel and a high frequency band (High Band, HB) channel or H-band) channel. Therefore, in addition to the above-mentioned first via 3 and second via 4 , the radio frequency circuit may further include a third via 6 .
- the radio frequency transceiver 1 may further include a third transmission port 13, the third transmission port 13 may be connected to the third channel 6, and the radio frequency circuit may also be provided with a second antenna unit (not shown in the figure) connected to the third channel 6. out).
- the first channel 3 and the second channel 4 can be set as the intermediate frequency band channel and the high frequency band channel respectively, that is, the first channel 3 is the intermediate frequency band channel.
- Band channel the second channel 4 is a high frequency band channel
- the third channel 6 can be set as a low frequency band channel.
- the isolation between the first input end 21 and the second input end 22 of the combiner 2 is greater than or equal to the frequency band isolation between the first channel 3 and the second channel 4, the first channel 3 and the second channel
- the RF signals of the channel 4 can all pass through the combiner 2 without affecting each other.
- the combiner 2 can exhibit low-pass characteristics.
- the combiner 2 can exhibit band-pass characteristics.
- the first channel 3 and the second channel 4 are turned on at the same time. Because the combiner 2 has a high degree of isolation, the two do not affect each other, so that the At the same time, voice calls and Internet access can be realized, which can improve the user experience.
- the isolation between the first input end 21 and the second input end 22 of the combiner 2 may be greater than or equal to 15dB.
- the third channel 6 and the first channel 3 are connected in parallel to the first input end 21 of the combiner 2, so that the third channel 6 can also be connected to the combiner 2 through the combiner 2.
- the first antenna element 5 is connected without the need to separately provide the second antenna element for the third passage 6 .
- the radio frequency circuit further includes a third channel 6 and a first switch 7; the third transmit port 13 of the radio frequency transceiver 1 is connected to the third channel 6, and the multiple input ends of the first switch 7 are respectively connected to the first switch 7.
- the channel 3 is connected to the third channel 6, the output end of the first switch 7 is connected to the first input end 21 of the combiner 2, and the first switch 7 is used to control the combiner 2 to conduct the first channel 3 or Conducted with the third via 6 .
- the combiner 2 can be an LMH combiner.
- One end of the combiner 2 is connected to a low-mid-band (LM-band) channel (ie, the first channel 3 or the third channel 6 ), and one end of the combiner 2 is connected to the H-band.
- the channel ie the second channel 4
- the combiner 2 exhibits a low-pass characteristic
- the combiner 2 exhibits a band-pass characteristic.
- the first channel 3 and the third channel 6 are jointly connected to the combiner 2 through the first switch 7, so that not only the first channel 3 and the second channel 4 can work simultaneously, but also the third channel 6 It works simultaneously with the second channel 4, thereby further improving the working performance of the radio frequency circuit.
- the radio frequency circuit further includes a first coupler 8, the input end of the first coupler 8 is connected to the first channel 3, and the first output end of the first coupler 8 is connected to the first input end 21 of the combiner 2.
- the second output end of the first coupler 8 ie, the CPL_LM port in FIG. 1
- the radio frequency transceiver 1 is connected to the radio frequency transceiver 1 .
- the working performance of the first channel 3 can be improved, thereby improving the working performance of the radio frequency circuit.
- the first channel 3 and the third channel 6 can be jointly connected through the first switch 7 .
- Connected to the first coupler 8 and then connected to the combiner 2 through the first coupler 8 .
- the radio frequency circuit further includes a second coupler 9, the input end of the second coupler 9 is connected to the second channel 4, and the first output end of the second coupler 9 is connected to the second input end 22 of the combiner 2.
- the second output end of the second coupler 9 ie, the CPL_H port in FIG. 1
- the radio frequency transceiver 1 is connected to the radio frequency transceiver 1 .
- the working performance of the second channel 4 can be improved, thereby improving the working performance of the radio frequency circuit.
- first coupler 8 and the second coupler 9 not only have the above-mentioned input terminal and output terminal, but also have a port for connecting the load, which will not be described in detail.
- the first path 3 includes a second switch 31, a third switch (not shown in the figure), a first branch 33 and a second branch 34;
- the input end of the second switch 31 is connected to the first transmit port 11 , the output end of the second switch 31 is connected to the input ends of the first branch 33 and the second branch 34 respectively, and the input ends of the third switch are respectively It is connected to the output terminals of the first branch 33 and the second branch 34, the output terminal of the third switch is connected to the first input terminal 21 of the combiner 2, and the second switch 31 and the third switch are used to control The combiner 2 conducts with one of the first branch 33 and the second branch 34 .
- the second path 4 includes a fourth switch 41 , a fifth switch 42 , a third branch 43 and a fourth branch 44 ;
- the input terminal of the fourth switch 41 is connected to the second transmitting port 12 , the output terminal of the fourth switch 41 is connected to the input terminals of the third branch 43 and the fourth branch 44 respectively, and the input terminal of the fifth switch 42 are respectively connected to the output ends of the third branch 43 and the fourth branch 44, the output end of the fifth switch 42 is connected to the second input end 22 of the combiner 2, the fourth switch 41 and the fifth switch 42 It is used to control the conduction between the combiner 2 and one of the third branch 43 and the fourth branch 44 .
- the third switch can be replaced by the first switch 7 .
- the third passage 6 includes a sixth switch 61, a fifth branch 62 and a sixth branch 63;
- the input end of the sixth switch 61 is connected to the third transmitting port 13, the output end of the sixth switch 61 is connected to the input ends of the fifth branch 62 and the sixth branch 63 respectively, and the first switch 7 includes four Input terminals, the two input terminals of the first switch 7 are respectively connected to the output terminals of the fifth branch 62 and the sixth branch 63, and the other two input terminals of the first switch 7 are respectively connected to the first branch 33 and the output terminal of the sixth branch 63.
- the output end of the second branch 34 is connected, and the first switch 7 is used to control the combiner 2 and one of the first branch 33 , the second branch 34 , the fifth branch 62 and the sixth branch 63 The road is turned on.
- the above is an implementation manner in which two branches are arranged in each channel.
- the number of branches arranged in each channel is not limited to two, and may be more, which is not limited in this embodiment of the present application.
- the multiple branches in the above-mentioned channels correspond to different frequency bands respectively.
- the two branches in the first channel 3 can be B1 and B3 respectively
- the two branches in the second channel 4 can be respectively As B7 and B41
- the two branches in the third passage 6 may be B5 and B8, respectively.
- the radio frequency circuit can take into account various frequency bands, so that the working performance of the radio frequency circuit can be improved.
- the power amplifiers in the first channel 3 can be MB power amplifiers (ie, LTE intermediate frequency power amplifiers).
- the power amplifier in the second channel 4 may be an HB power amplifier (ie LTE high frequency power amplifier), and the power amplifier in the third channel 6 may be an LB power amplifier (LTE low frequency power amplifier).
- the first channel 3 is a 4G MB channel
- the second path 4 is a 4G HB path or a 5G new air interface NR path, or the second path 4 is a path shared by 4G HB and 5G NR.
- the second path 4 is a path shared by 4G HB and an independent networking (Standalone, SA).
- SA independent networking
- the above-mentioned second path 4 may be, for example, a path shared by the 4G HB path and the SAN41 path.
- the second channel 4 can be a channel shared by the 4G HB channel and the SAN41TX2 channel.
- the radio frequency circuit can also set the fourth channel 10, that is, the SAN41TX1 channel.
- the radio frequency circuit further includes a third antenna unit, and the third antenna unit may include two antenna ports, namely ANT3 and ANT4 shown in FIG. 1 , the radio frequency transceiver 1 further includes a fourth transmit port 14 , and the fourth channel One end of 10 is connected to the fourth transmitting port 14, and the other end is connected to the third antenna unit.
- the other end of the fourth channel 10 can be connected to the above-mentioned ANT3 and ANT4 through the DPDT.
- the fourth channel 10 may also be provided with devices such as a power amplifier (ie, an N41 power amplifier), a switch, a filter or a duplexer, and the comparison will not be described in detail.
- the first channel 3 is a 4G MB channel
- the second channel 4 is a channel shared by SAN41 TX2 and 4G HB
- the third channel 6 is a 4G LB channel
- the fourth channel 10 is a SAN41TX1 channel.
- the 4G B3 channel is opened to realize 1T2R communication
- the SAN41 TX2 channel and the SAN41 TX1 channel are opened to realize 2T4R communication;
- SA N41 and 4G B3 work at the same time. Due to the high isolation of combiner 2, the two do not affect each other. SA N41 maintains 2T4R and does not need to be switched to 1T2R. It can realize 4G voice communication without reducing the 5G throughput rate. , which can improve the user experience.
- 4G B3 and 4G B41 are both turned on at the same time as follows:
- the 4G B3 channel is opened to realize 1T2R communication
- the 4G B41 channel is opened to realize 1T2R communication
- 4G B41 and 4G B3 transmit at the same time to achieve uplink CA, and simultaneously receive to achieve downlink CA. Due to the high isolation of combiner 2, the mutual influence between the two channels of 4G B41 and 4G B3 is negligible, providing uplink CA and In the downlink CA function, compared with the single channel opening, the CA radio frequency performance will not deteriorate, or in other words, the receiving sensitivity will not decrease.
- the radio frequency circuit in the embodiment of the present application can realize simultaneous operation of multiple channels, and the performance of each channel will not be affected.
- An embodiment of the present application further provides an electronic device, where the electronic device includes any one of the radio frequency circuits in the foregoing embodiments.
- the electronic device in this embodiment of the present application may be a mobile electronic device or a non-mobile electronic device.
- the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (personal digital assistant).
- assistant, PDA personal digital assistant
- non-mobile electronic devices can be servers, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (television, TV), teller machine or self-service machine, etc., this application Examples are not specifically limited.
- the electronic device in this embodiment of the present application may be an apparatus having an operating system.
- the operating system may be an Android (Android) operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
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Abstract
本申请公开了一种射频电路和电子设备。其中，射频电路包括射频收发器、合路器、第一通路、第二通路和第一天线单元；射频收发器包括第一发射端口和第二发射端口；合路器具有第一输入端、第二输入端和输出端；第一发射端口通过第一通路与合路器的第一输入端连接，第二发射端口通过第二通路与合路器的第二输入端连接，合路器的输出端与第一天线单元连接；第一输入端与第二输入端之间的隔离度大于或等于第一通路与第二通路之间的频段隔离度。
Description
相关申请的交叉引用
本申请主张在2020年08月04日在中国提交的中国专利申请号No.202010773013.8的优先权，其全部内容通过引用包含于此。
本申请属于通信技术领域，具体涉及一种射频电路和电子设备。
随着通信技术的发展，手机、平板等电子设备的射频电路需要兼容不同的制式，因此，电子设备的射频电路一般具有至少两个不同的通路，例如，一个通路用于进行上网通信，另一个通路用于进行语音通话。然而，当至少两个不同的通路同时工作时，相比单一通路工作时，各通路的性能会受到影响。
发明内容
本申请实施例的目的是提供一种射频电路和电子设备，能够解决射频电路中多通路同时工作时各通路性能受影响的问题。
为了解决上述技术问题，本申请是这样实现的：
第一方面，本申请实施例提供了一种射频电路，包括射频收发器、合路器、第一通路、第二通路和第一天线单元；
所述射频收发器包括第一发射端口和第二发射端口；所述合路器具有第一输入端、第二输入端和输出端；所述第一发射端口通过所述第一通路与所述合路器的第一输入端连接，所述第二发射端口通过所述第二通路与所述合路器的第二输入端连接，所述合路器的输出端与所述第一天线单元连接；
所述第一输入端与所述第二输入端之间的隔离度大于或等于所述第一通路与所述第二通路之间的频段隔离度。
第二方面，本申请实施例提供了一种电子设备，包括第一方面所述的射 频电路。
在本申请实施例中，通过在射频电路中设置合路器，由于合路器的隔离度大于或等于第一通路与第二通路之间的频段隔离度，这样，两通路的射频信号能够同时通过合路器而不会相互影响。可见，本申请实施例中的射频电路能够实现多通路同时工作，且各通路的性能均不会受到影响。
图1是本申请实施例提供的射频电路的结构示意图；
图2是本申请实施例提供的射频电路的工作原理示意图之一；
图3是本申请实施例提供的射频电路的工作原理示意图之二。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”一般表示前后关联对象是一种“或”的关系。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的射频电路和电子设备进行详细地说明。
如图1所示，一种射频电路，包括射频收发器1、合路器2、第一通路3、第二通路4和第一天线单元5；
射频收发器1包括第一发射端口11和第二发射端口12；合路器2具有第一输入端21、第二输入端22和输出端23；第一发射端口11通过第一通路 3与合路器2的第一输入端21连接，第二发射端口12通过第二通路4与合路器2的第二输入端22连接，合路器2的输出端23与第一天线单元5连接；
第一输入端21与第二输入端22之间的隔离度大于或等于第一通路3与第二通路4之间的频段隔离度。
射频收发器1又可称为射频芯片(wafer transceiver，WTR)。
合路器2可以为三端口器件，一端(即第一输入端21)接第一通路3，一端(即第二输入端22)接第二通路4，公共端(即输出端23)接天线(即第一天线单元5)。
第一天线单元5可以包括两个天线接口(Antenna hardware interface，ANT)，即ANT1和ANT2。
射频电路中还可以设置双刀双掷开关(Double Pole Double Throw，DPDT)，合路器2的输出端23可以通过DPDT与上述ANT1和ANT2连接。
为了提高射频电路的频率覆盖范围，射频电路中通常包括低频波段(Low Band，LB或L-band)通路、中频波段(Middle Band，MB或M-band)通路和高频波段(High Band，HB或H-band)通路。因此，射频电路除了包括上述第一通路3和第二通路4，还可包括第三通路6。相应的，射频收发器1还可以包括第三发射端口13，第三发射端口13可以与第三通路6连接，射频电路还可以设置与第三通路6连接的第二天线单元(图中未示出)。
考虑到中频波段通路和高频波段通路在通信性能上的高可靠性，可以将第一通路3和第二通路4分别设置为中频波段通路和高频波段通路，即，第一通路3为中频波段通路，第二通路4为高频波段通路，可以将第三通路6设置为低频波段通路。
由于合路器2的第一输入端21与第二输入端22之间的隔离度大于或等于第一通路3与第二通路4之间的频段隔离度，因此，第一通路3和第二通路4的射频信号均能够通过合路器2而不会相互影响。具体的，在第一通路3为中频波段通路，第二通路4为高频波段通路的情况下，对于第一通路3到第一天线单元5，合路器2可表现为低通特性，对于第二通路4到第一天线单元5，合路器2可表现为带通特性。以第一通路3进行语音通话，第二通路4进行上网为例，第一通路3和第二通路4同时打开，由于合路器2具 有很高的隔离度，两者互不影响，从而能够同时实现语音通话和上网，进而能够改善用户体验。
作为举例，合路器2的第一输入端21与第二输入端22之间的隔离度可以大于或等于15dB。
为了简化射频电路的整体结构，可以考虑将第三通路6与第一通路3并联并共同连接至合路器2的第一输入端21，这样，第三通路6也可通过合路器2与第一天线单元5连接，而无需单独为第三通路6设置第二天线单元。
为了实现上述方案，以下提供具体的实施方式。
可选的，射频电路还包括第三通路6和第一切换开关7；射频收发器1的第三发射端口13与第三通路6连接，第一切换开关7的多个输入端分别与第一通路3和第三通路6连接，第一切换开关7的输出端与合路器2的第一输入端21连接，第一切换开关7用于控制合路器2与第一通路3导通或者与第三通路6导通。
该实施方式中，合路器2可采用LMH合路器，合路器2的一端接低中频段(LM-band)通路(即第一通路3或第三通路6)，一端接H-band通路(即第二通路4)，公共端接第一天线单元5。对于LM-band通路到第一天线单元5，合路器2表现为低通特性，对于H-band通路到第一天线单元5，合路器2表现为带通特性。
该实施方式中，第一通路3和第三通路6通过第一切换开关7共同连接至合路器2，这样，不仅第一通路3可以与第二通路4同时工作，第三通路6也可以与第二通路4同时工作，从而进一步提高了射频电路的工作性能。
可选的，射频电路还包括第一耦合器8，第一耦合器8的输入端与第一通路3连接，第一耦合器8的第一输出端与合路器2的第一输入端21连接，第一耦合器8的第二输出端(即图1中的CPL_LM端口)与射频收发器1连接。
该实施方式中，通过设置第一耦合器8，能够提高第一通路3的工作性能，从而提高射频电路的工作性能。
进一步的，对于第一通路3和第三通路6通过第一切换开关7共同连接至合路器2的实施方式而言，第一通路3和第三通路6可通过第一切换开关 7先共同连接至第一耦合器8，再通过第一耦合器8连接至合路器2。这样，无需为第三通路6单独设置耦合器，从而进一步简化了射频电路的整体结构。
可选的，射频电路还包括第二耦合器9，第二耦合器9的输入端与第二通路4连接，第二耦合器9的第一输出端与合路器2的第二输入端22连接，第二耦合器9的第二输出端(即图1中的CPL_H端口)与射频收发器1连接。
该实施方式中，通过设置第二耦合器9，能够提高第二通路4的工作性能，从而提高射频电路的工作性能。
需要说明的是，上述第一耦合器8和第二耦合器9除了具有上述输入端和输出端之外，还具有一连接负载的端口，对此不作具体说明。
可选的，第一通路3包括第二切换开关31、第三切换开关(图中未示出)、第一支路33和第二支路34；
第二切换开关31的输入端与第一发射端口11连接，第二切换开关31的输出端分别与第一支路33和第二支路34的输入端连接，第三切换开关的输入端分别与第一支路33和第二支路34的输出端连接，第三切换开关的输出端与合路器2的第一输入端21连接，第二切换开关31和第三切换开关用于控制合路器2与第一支路33和第二支路34中的一支路导通。
可选的，第二通路4包括第四切换开关41、第五切换开关42、第三支路43和第四支路44；
第四切换开关41的输入端与第二发射端口12连接，第四切换开关41的输出端分别与第三支路43和第四支路44的输入端连接，第五切换开关42的输入端分别与第三支路43和第四支路44的输出端连接，第五切换开关42的输出端与合路器2的第二输入端22连接，第四切换开关41和第五切换开关42用于控制合路器2与第三支路43和第四支路44中的一支路导通。
进一步的，对于第一通路3和第三通路6通过第一切换开关7共同连接至合路器2的实施方式而言，第三切换开关可以由第一切换开关7代替。
可选的，第三通路6包括第六切换开关61、第五支路62和第六支路63；
第六切换开关61的输入端与第三发射端口13连接，第六切换开关61的输出端分别与第五支路62和第六支路63的输入端连接，第一切换开关7包括四个输入端，第一切换开关7的两个输入端分别与第五支路62和第六支路 63的输出端连接，第一切换开关7的另两个输入端分别与第一支路33和第二支路34的输出端连接，第一切换开关7用于控制合路器2与第一支路33、第二支路34、第五支路62和第六支路63中的一支路导通。
以上为各通路中设置两条支路的实施方式，各通路中设置的支路数量并不限于两条，还可以更多，本申请实施例对此不作限定。
上述各通路中的多条支路分别对应不同的频段(band)，作为示例，第一通路3中的两条支路可以分别为B1和B3，第二通路4中的两条支路可以分别为B7和B41，第三通路6中的两条支路可以分别为B5和B8。
通过上述在各通路中设置多条支路，能够使射频电路兼顾多种频段，从而能够提高射频电路的工作性能。
需要说明的是，上述各通路除了以上设置之外，还可以设置功率放大器、滤波器或双工器等器件，例如，第一通路3中的功率放大器可以为MB功放(即LTE中频功率放大器)，第二通路4中的功率放大器可以为HB功放(即LTE高频功率放大器)，第三通路6中的功率放大器可以为LB功放(LTE低频功率放大器)。
可选的，第一通路3为4G MB通路；
第二通路4为4G HB通路或5G新空口NR通路，或者，第二通路4为4G HB和5G NR共用的通路。
可选的，第二通路4为4G HB和独立组网(Standalone，SA)共用的通路。
上述第二通路4例如可以是4G HB通路和SA N41通路共用的通路。
当射频电路中设置有SA N41TX1通路和SA N41TX2通路时，第二通路4可以是4G HB通路和SA N41 TX2通路共用的通路。这样，射频电路还可以设置第四通路10，即SA N41TX1通路。相应的，射频电路还包括第三天线单元，该第三天线单元可包括两个天线端口，即图1中示出的ANT3和ANT4，射频收发器1还包括第四发射端口14，第四通路10的一端与第四发射端口14连接，另一端与第三天线单元连接。进一步的，第四通路10的另一端可通过DPDT与上述ANT3和ANT4连接。此外，第四通路10也可以设置功率放大器(即N41功放)、开关、滤波器或双工器等器件，对比不作 具体说明。
为了更好地理解本申请实施例，以下以SA N41 2T4R和4G LM-band同时通信的射频架构为例，提供两个具体示例。如图2所示，第一通路3为4G MB通路，第二通路4为SA N41 TX2和4G HB共用的通路，第三通路6为4G LB通路，第四通路10为SA N41TX1通路。
示例一：
如图2所示，以SA N41 2T4R上网，4G B3通话为例，两者同时打开的情况如下：
4G B3通路打开，实现1T2R通信；
SA N41 TX2通路和SA N41 TX1通路打开，实现2T4R通信；
SA N41和4G B3同时工作，由于合路器2具有很高的隔离度，两者互不影响，SA N41保持2T4R，不用切换为1T2R，能够在5G吞吐率不下降的情况下实现4G语音通信，能够改善用户体验。
如图3所示，以4G LM+H band下行CA(Carrier Aggregation，载波聚合)和上行CA功能实现为例，4G B3和4G B41两者同时打开的情况如下：
4G B3通路打开，实现1T2R通信；
4G B41通路打开，实现1T2R通信；
4G B41和4G B3同时发射实现上行CA，同时接收实现下行CA，由于合路器2具有很高的隔离度，4G B41和4G B3两条通路之间的相互影响可忽略不计，提供上行CA和下行CA功能，相比单一通路打开，CA射频性能不会出现恶化，或者说，接收灵敏度不会下降。
需要说明的是，本申请实施例中的多种可选的实施方式，彼此可以相互结合实现，也可以单独实现，对此本申请不作限定。
在本申请实施例中，通过在射频电路中设置合路器，由于合路器的隔离度大于或等于第一通路与第二通路之间的频段隔离度，这样，两通路的射频信号能够同时通过合路器而不会相互影响。可见，本申请实施例中的射频电路能够实现多通路同时工作，且各通路的性能均不会受到影响。
本申请实施例还提供一种电子设备，该电子设备包括上述实施例中的任一种射频电路。
本申请实施例中的电子设备可以是移动电子设备，也可以为非移动电子设备。示例性的，移动电子设备可以为手机、平板电脑、笔记本电脑、掌上电脑、车载电子设备、可穿戴设备、超级移动个人计算机(ultra-mobile personal computer，UMPC)、上网本或者个人数字助理(personal digital assistant，PDA)等，非移动电子设备可以为服务器、网络附属存储器(Network Attached Storage，NAS)、个人计算机(personal computer，PC)、电视机(television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。
本申请实施例中的电子设备可以为具有操作系统的装置。该操作系统可以为安卓(Android)操作系统，可以为iOS操作系统，还可以为其他可能的操作系统，本申请实施例不作具体限定。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施例的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。
Claims (10)
- 一种射频电路，包括射频收发器、合路器、第一通路、第二通路和第一天线单元；所述射频收发器包括第一发射端口和第二发射端口；所述合路器具有第一输入端、第二输入端和输出端；所述第一发射端口通过所述第一通路与所述合路器的第一输入端连接，所述第二发射端口通过所述第二通路与所述合路器的第二输入端连接，所述合路器的输出端与所述第一天线单元连接；所述第一输入端与所述第二输入端之间的隔离度大于或等于所述第一通路与所述第二通路之间的频段隔离度。
- 根据权利要求1所述的射频电路，还包括第三通路和第一切换开关；所述射频收发器还包括第三发射端口，所述第三发射端口与所述第三通路连接，所述第一切换开关的多个输入端分别与所述第一通路和所述第三通路连接，所述第一切换开关的输出端与所述合路器的第一输入端连接，所述第一切换开关用于控制所述合路器与所述第一通路导通或者与所述第三通路导通。
- 根据权利要求1或2所述的射频电路，其中，所述第一通路为中频波段MB通路，所述第二通路为高频波段HB通路。
- 根据权利要求3所述的射频电路，其中，所述第一通路为4G MB通路；所述第二通路为4G HB通路或5G新空口NR通路，或者，所述第二通路为4G HB和5G NR共用的通路。
- 根据权利要求4所述的射频电路，其中，所述第二通路为4G HB和独立组网SA共用的通路。
- 根据权利要求2所述的射频电路，其中，所述第三通路为低频波段LB通路。
- 根据权利要求1或2所述的射频电路，还包括第一耦合器，所述第一耦合器的输入端与所述第一通路连接，所述第一耦合器的第一输出端与所述合路器的第一输入端连接，所述第一耦合器的第二输出端与所述射频收发器连接。
- 根据权利要求1所述的射频电路，还包括第二耦合器，所述第二耦合器的输入端与所述第二通路连接，所述第二耦合器的第一输出端与所述合路器的第二输入端连接，所述第二耦合器的第二输出端与所述射频收发器连接。
- 根据权利要求1所述的射频电路，其中，所述第一通路包括第二切换开关、第三切换开关、第一支路和第二支路；所述第二切换开关的输入端与所述第一发射端口连接，所述第二切换开关的输出端分别与所述第一支路和所述第二支路的输入端连接，所述第三切换开关的输入端分别与所述第一支路和所述第二支路的输出端连接，所述第三切换开关的输出端与所述合路器的第一输入端连接，所述第二切换开关和所述第三切换开关用于控制所述合路器与所述第一支路和所述第二支路中的一支路导通。
- 一种电子设备，包括权利要求1至9中任一项所述的射频电路。
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