WO2022022209A1 - 一种射频电路及通讯终端 - Google Patents

一种射频电路及通讯终端 Download PDF

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Publication number
WO2022022209A1
WO2022022209A1 PCT/CN2021/103640 CN2021103640W WO2022022209A1 WO 2022022209 A1 WO2022022209 A1 WO 2022022209A1 CN 2021103640 W CN2021103640 W CN 2021103640W WO 2022022209 A1 WO2022022209 A1 WO 2022022209A1
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WIPO (PCT)
Prior art keywords
radio frequency
link
antenna
diversity
high frequency
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PCT/CN2021/103640
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English (en)
French (fr)
Inventor
来宝鹏
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中兴通讯股份有限公司
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Publication of WO2022022209A1 publication Critical patent/WO2022022209A1/zh

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • 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
    • H04B1/401—Circuits for selecting or indicating operating mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a radio frequency circuit and a communication terminal.
  • Existing communication terminals usually include an upper antenna and a lower antenna, wherein the upper antenna is usually set in the diversity area of the communication terminal and is used for diversity reception of all frequency band signals, and the lower antenna is usually set in the main collection area of the communication terminal. Configured to transmit and master to receive all band signals.
  • the user holds the communication terminal for use, it is easy to cause interference to the antenna, which reduces the antenna efficiency of signals in some frequency bands.
  • the embodiments of the present application provide a radio frequency circuit and a communication terminal, aiming to at least to a certain extent solve the problem of reducing the antenna efficiency of signals in some frequency bands when the user holds the communication terminal.
  • an embodiment of the present application provides a radio frequency circuit, which is applied to a communication terminal including a main collection area and a diversity area, and the radio frequency circuit includes: a radio frequency transceiver circuit, which is configured to transmit radio frequency signals and receive radio frequency signals; at least A diversity antenna, each of the diversity antennas is set in the diversity area and connected to the radio frequency transceiver circuit through a medium and high frequency bidirectional link, and the medium and high frequency bidirectional link is configured to transmit the high frequency transmitted by the radio frequency transceiver circuit.
  • the signal and/or the intermediate frequency signal is transmitted to the diversity antenna, and the high frequency signal and/or the intermediate frequency signal received by the diversity antenna diversity is transmitted to the radio frequency transceiver circuit; at least one main antenna, each main antenna All are arranged in the main set area and are connected to the radio frequency transceiver circuit through a medium and high frequency receiving link, and the medium and high frequency receiving link is configured to receive the high frequency signal and/or the intermediate frequency signal received by the main set antenna. transmitted to the radio frequency transceiver circuit.
  • an embodiment of the present application provides a communication terminal, where the communication terminal includes the radio frequency circuit described in the first aspect.
  • FIG. 1 is a schematic structural diagram of a communication terminal in an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a circuit structure of a radio frequency circuit provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a circuit structure of a medium and high frequency bidirectional link in an embodiment of the present application
  • FIG. 4 is a schematic diagram of a circuit structure of a medium and high frequency receiving link in an embodiment of the present application
  • FIG. 5 is a schematic diagram of another circuit structure of the radio frequency circuit in the embodiment of the present application.
  • FIG. 6 is a schematic diagram of another circuit structure of the radio frequency circuit in the embodiment of the present application.
  • FIG. 7 is a schematic diagram of a circuit structure of a low-frequency receiving link in an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a circuit structure of a low-frequency bidirectional link in an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another circuit structure of the radio frequency circuit in the embodiment of the present application.
  • FIG. 10 is a schematic block diagram of the structure of a communication terminal provided by an embodiment of the present application.
  • the embodiments of the present application can be applied to a communication terminal, where the communication terminal includes a main area and a diversity area.
  • the main set area refers to the area of the main set circuit and the main set antenna in the communication terminal.
  • the main set antenna is located in the position where there are fewer components. If the antenna is set in the main set area, the clearance area of the antenna will be The diversity area is relatively large; the diversity area refers to the areas such as the diversity circuit and the diversity antenna in the communication terminal, in which there are many components placed where the diversity antenna is located. If the antenna is set in the diversity area, the clearance area of the antenna will be relatively small small.
  • the main area of the communication terminal may be the area located below, and the diversity area may be the area located above.
  • an embodiment of the present application provides a radio frequency circuit, which is applied to a communication terminal including a main area and a diversity area.
  • the radio frequency circuit includes: a radio frequency transceiver circuit 10 , at least one diversity antenna 20 , a plurality of Medium and high frequency bidirectional links 30 , at least one main set of antennas 40 and several medium and high frequency receiving links 50 .
  • each diversity antenna 20 is arranged in the diversity area, and each diversity antenna 20 is connected to the radio frequency transceiver circuit 10 through a medium and high frequency bidirectional link 30, and the medium and high frequency bidirectional link 30 can be configured to transmit the radio frequency transceiver circuit 10
  • the high frequency signal and/or the intermediate frequency signal received by the diversity antenna 20 is transmitted to the diversity antenna 20
  • the high frequency signal and/or the intermediate frequency signal diversity received by the diversity antenna 20 is transmitted to the radio frequency transceiver circuit 10 .
  • FIG. 2 only schematically depicts one diversity antenna 10, and the number of the diversity antennas 10 depends on the communication terminal.
  • the radio frequency circuit may include a diversity antenna 20 and a mid-to-high frequency bidirectional link 30, then the diversity antenna 20 may serve as an antenna for mid-high frequency signal transmission and diversity reception, and the mid-to-high frequency bidirectional link 30 may connect the radio frequency transceiver circuit
  • the high frequency signal and the intermediate frequency signal sent by 10 are transmitted to the diversity antenna 20
  • the high frequency signal and the intermediate frequency signal diversity received by the diversity antenna 20 are transmitted to the radio frequency transceiver circuit 10 .
  • the radio frequency circuit may include two diversity antennas 20 and two medium and high frequency bidirectional links 30, then one of the diversity antennas 20 may be used as an antenna for high frequency signal transmission and diversity reception, and the other diversity antenna 20 may be used as an intermediate frequency signal. Antenna for signal transmission and diversity reception.
  • one of the medium and high frequency bidirectional links 30 can be configured to transmit the high frequency signal sent by the radio frequency transceiver circuit 10 to the diversity antenna 20, and transmit the high frequency signal diversity received by the diversity antenna 20 to the radio frequency transceiver circuit 10, and in addition
  • a mid-high frequency bidirectional link 30 may be configured to transmit IF signals sent by the RF transceiver circuit 10 to the diversity antenna 20 , and to transmit the IF signals diversity received by the diversity antenna 20 to the RF transceiver circuit 10 .
  • each main set antenna 40 is set in the main set area, each main set antenna 40 is connected to the radio frequency transceiver circuit 10 through a medium and high frequency receiving link 50, and the medium and high frequency receiving link 50 can be configured to The high frequency signal and/or the intermediate frequency signal received by the antenna 40 is mainly transmitted to the radio frequency transceiver circuit 10 .
  • FIG. 2 only schematically shows one main antenna 10, and the number of the main antenna 10 depends on the communication terminal.
  • the clearance area of the main antenna 40 is larger than that of the diversity antenna 20, for example, the clearance area of the main antenna 40 are larger than the clearance area of the diversity antenna 20 .
  • the radio frequency circuit may include a main set antenna 40 and a medium and high frequency receiving link 50, then the main set antenna 40 may be used as an antenna for receiving the main set of medium and high frequency signals, and the medium and high frequency receiving link 50 may The high frequency signal and the intermediate frequency signal received by the antenna 40 are transmitted to the radio frequency transceiver circuit 10 .
  • the radio frequency transceiver circuit 10 may be configured to transmit radio frequency signals and receive radio frequency signals.
  • the radio frequency transceiver circuit 10 includes a radio frequency transceiver, a radio frequency transceiver chip, and the like.
  • the inventor found that the impact on the low frequency signal in this scenario is relatively small, that is, the effect on the antenna efficiency of the low frequency signal is small, so the low frequency signal
  • the transmit, diversity receive and main set receive can be set flexibly.
  • the diversity antenna 20 may be used as the antenna for diversity reception of low frequency signals
  • the main antenna 40 may be used as the antenna for low frequency signal transmission and main reception.
  • the embodiment of the present application uses the diversity antenna arranged in the diversity area as the antenna for transmitting and receiving the medium and high frequency signals.
  • the main set antenna arranged in the main set area is used as the antenna for the main set of medium and high frequency signals, thereby reducing the influence on the medium and high frequency transmission signal, and improving the antenna efficiency of the medium and high frequency transmission signal.
  • the mid-high frequency bidirectional link 30 includes a mid-high frequency duplexer 301 , a receive link 302 and a transmit link 303 .
  • the mid-high frequency duplexer 301 is arranged in the diversity area, the mid-high frequency duplexer 301 is connected to the diversity antenna 20, the receiving link 302 and the transmitting link 303, the receiving link 302 is connected to the radio frequency transceiver circuit 10, and the transmitting link 303 passes power
  • the amplifier circuit 304 is connected to the radio frequency transceiver circuit 10 .
  • a duplexer is usually located in the main set area and is configured for the transmission and main set reception of radio frequency signals.
  • the mid-high frequency duplexer 301 is configured for transmitting and diversity receiving of radio frequency signals, so that the diversity antenna 10 can be used as an antenna for transmitting and receiving medium and high frequency signals.
  • the mid-high frequency duplexer 301 is arranged in the diversity area, which can reduce the difficulty of routing and reduce the insertion loss of routing.
  • the mid-high frequency duplexer 301 can be configured to transmit and receive diversity of high-frequency signals and/or intermediate frequency signals
  • the power amplifier circuit 304 can be configured to amplify the power of the radio frequency signal transmitted by the radio frequency transceiver circuit 10
  • the power amplifier circuit 304 Broadband power amplifier devices may be included.
  • the transmit chains of all antennas may share one power amplifier circuit 304 , that is, the transmit chains of each antenna are connected to the radio frequency transceiver circuit 10 through the same power amplifier circuit 304 .
  • the mid-high frequency receive chain 50 includes a mid-high frequency filter 501 .
  • the mid-high frequency filter 501 is disposed in the main collection area, the input end of the mid-high frequency filter 501 is connected to the main collection antenna 40 , and the output end of the mid-high frequency filter 501 is connected to the radio frequency transceiver circuit 10 .
  • filters are typically placed in a diversity region, configured for diversity reception of radio frequency signals.
  • the mid-high frequency filter 501 is configured to receive the main set of radio frequency signals, so that the main set antenna 40 can be used as an antenna for the main set of mid-to-high frequency signals.
  • the medium and high frequency filter 501 is arranged in the main collection area, which can reduce the difficulty of routing and reduce the insertion loss of routing.
  • the radio frequency circuit further includes a low frequency receiving link 60 and a low frequency bidirectional link 70 .
  • one diversity antenna 20 of at least one diversity antenna 20 is connected to the radio frequency transceiver circuit 10 through a low frequency receiving link 60 , and the low frequency receiving link 60 is configured to transmit the low frequency signal diversity received by the corresponding diversity antenna 40 to the radio frequency transceiver circuit 10 .
  • One of the at least one main antenna 40 is connected to the radio frequency transceiver circuit 10 through a low frequency two-way link 70, and the low frequency two-way link 70 is configured to transmit the low frequency signal sent by the radio frequency transceiver circuit 10 to the corresponding main antenna 40 , and transmit the low frequency signal received by the corresponding main antenna 40 to the radio frequency transceiver circuit 10 .
  • a diversity antenna 20 can be used not only as an antenna for medium and high frequency signal transmission and diversity reception, but also as an antenna for low frequency signal diversity reception; at the same time, a main antenna 40 can not only serve as an antenna for medium and high frequency signal diversity reception It can also be used as an antenna for transmitting and receiving the main set of low-frequency signals.
  • a diversity antenna 20 can be used not only as an antenna for medium and high frequency signal transmission and diversity reception, but also as an antenna for low frequency signal diversity reception; at the same time, a main antenna 40 can not only serve as an antenna for medium and high frequency signal diversity reception It can also be used as an antenna for transmitting and receiving the main set of low-frequency signals.
  • one diversity antenna 20 can be used as an antenna for transmitting and receiving medium and high frequency signals, while other diversity antennas 20 are used as an antenna for receiving low frequency signals; at the same time, one main antenna 40 can be used as an antenna for diversity receiving. Antennas for the main set of medium and high frequency signals are received, while the other main set of antennas 40 are used as antennas for low frequency signal transmission and main set of reception.
  • the low frequency receive chain 60 includes a low frequency filter 601 .
  • the input end of the low frequency filter 601 is connected to the corresponding diversity antenna 20 , and the output end of the low frequency filter 601 is connected to the radio frequency transceiver circuit 10 .
  • the low frequency bidirectional link 70 includes a low frequency duplexer 701 , a receive link 702 and a transmit link 703 .
  • the low frequency duplexer 701 is connected to the corresponding main antenna 40 , the receiving link 702 and the transmitting link 703 , the receiving link 702 is connected to the radio frequency transceiver circuit 10 , and the transmit link 703 is connected to the radio frequency transceiver circuit through the power amplifier circuit 704 10.
  • the power amplifying circuit 704 and the above-mentioned power amplifying circuit 304 may be the same power amplifying circuit.
  • the radio frequency circuit further includes several link switches, and the link switches are connected between the antenna and the corresponding link.
  • the link switch controls only one link, eg, the diversity antenna 20 is connected to the mid-high frequency bidirectional link 30 through one link switch, or the main antenna 40 is connected to the mid-high frequency receive link 50 through one link switch.
  • a link switch controls two or more links, eg, diversity antenna 20 is connected through one link switch to mid-high frequency bidirectional link 30, low frequency receive link 60, or main set antenna 40 is connected through one link switch The medium and high frequency receiving link 50 and the low frequency bidirectional link 70 are connected.
  • the radio frequency circuit may include two diversity antennas 20 , which are a first diversity antenna 20 and a second diversity antenna 20 respectively, and the radio frequency circuit may further include two medium and high frequency bidirectional links 30 , They are the first medium and high frequency bidirectional link 30 and the second medium and high frequency bidirectional link 30 respectively.
  • the first diversity antenna 20 is connected to the radio frequency transceiver circuit 10 through a first medium and high frequency bidirectional link 30 , and the first medium and high frequency bidirectional link 30 is configured to transmit the high frequency signal sent by the radio frequency transceiver circuit 10 to the first diversity antenna 20 , and transmit the high frequency signal diversity received by the first diversity antenna 20 to the radio frequency transceiver circuit 10 .
  • the second diversity antenna 20 is connected to the radio frequency transceiver circuit 10 through a second medium and high frequency bidirectional link 30.
  • the second medium and high frequency bidirectional link 30 is configured to transmit the intermediate frequency signal sent by the radio frequency transceiver circuit 10 to the second diversity antenna 20, and to transmit the intermediate frequency signal sent by the radio frequency transceiver circuit 10 to the second diversity antenna 20.
  • the intermediate frequency signal diversity received by the second diversity antenna 20 is transmitted to the radio frequency transceiver circuit 10 .
  • the first diversity antenna 20 is only used as an antenna for high frequency signal transmission and diversity reception, and the structure and placement of the first diversity antenna 20 in the diversity area are specially designed for high frequency signals, and the first medium and high frequency bidirectional link 30 can also be specially configured for high frequency signals.
  • the second diversity antenna 20 is only used as an antenna for intermediate frequency signal transmission and diversity reception, and the structure and placement of the second diversity antenna 20 in the diversity area are specially set for the intermediate frequency signal, while the second medium and high frequency bidirectional The link 30 may also be provided exclusively for intermediate frequency signals.
  • one of the two diversity antennas 20 may be selected as an antenna for low frequency signal diversity reception. As shown in FIG. 9 , for example, if the first diversity antenna 20 is selected, the first diversity antenna 20 also receives the low frequency signal through the link. 60 is connected to the radio frequency transceiver circuit 10 .
  • one main antenna 40 can be set as the antenna for the main reception of high-frequency signals, that is, the main antenna 40 is connected to the radio frequency transceiver through the medium and high frequency receiving link 50 circuit 10.
  • the main antenna 40 can also be used as an antenna for low frequency signal transmission and main reception, so the main antenna 40 can also be connected to the radio frequency transceiver circuit 10 through the low frequency bidirectional link 70 .
  • An embodiment of the present application further provides a communication terminal.
  • the communication terminal includes the above-mentioned radio frequency circuit.
  • the communication terminal includes the above-mentioned radio frequency circuit.
  • a diversity antenna is arranged in a diversity area and is connected to a radio frequency transceiver circuit through a medium and high frequency bidirectional link, and the medium and high frequency bidirectional link is configured to connect the radio frequency transceiver circuit
  • the transmitted high-frequency signal and/or intermediate frequency signal is transmitted to the diversity antenna, and the high-frequency signal and/or intermediate frequency signal received by the diversity antenna diversity is transmitted to the radio frequency transceiver circuit;
  • the main antenna is set in the main area and receives the link through the medium and high frequency
  • the radio frequency transceiver circuit is connected, and the medium and high frequency receiving link is configured to transmit the high frequency signal and/or the intermediate frequency signal received by the main set of antennas to the radio frequency transceiver circuit.
  • the diversity antenna set in the diversity area is used as the antenna for transmitting and receiving the medium and high frequency signals
  • the main set antenna set in the main set area is used as the main set of medium and high frequency signals. Antenna, thereby reducing the impact on the medium and high frequency transmission signal, and improving the antenna efficiency of the medium and high frequency transmission signal.

Abstract

一种射频电路及通讯终端，分集天线（20）设置于分集区域并通过中高频双向链路（30）连接射频收发电路（10），中高频双向链路（30）被配置为将射频收发电路（10）发出的高频信号和/或中频信号传输至分集天线（20）以及将分集天线（20）分集接收的高频信号和/或中频信号传输至射频收发电路（10）；主集天线（40）设置于主集区域并通过中高频接收链路（50）连接射频收发电路（10），中高频接收链路（50）被配置为将主集天线（40）主集接收的高频信号和/或中频信号传输至射频收发电路（10）。

Description

一种射频电路及通讯终端
相关申请的交叉引用
本申请基于申请号为202010754417.2、申请日为2020年7月30日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及通讯技术领域，尤其涉及一种射频电路及通讯终端。
背景技术
现有的通讯终端通常包括一个上天线和一个下天线，其中，上天线通常设置在通讯终端的分集区域，用于分集接收所有的频段信号，下天线通常设置在通讯终端的主集区域，被配置为发射和主集接收所有的频段信号。但这种设计方式，在用户手握通讯终端进行使用时很容易对天线产生干扰，降低部分频段信号的天线效率。
发明内容
基于此，本申请实施例提供了一种射频电路及通讯终端，旨在至少在一定程度上解决当用户手握通讯终端时降低部分频段信号的天线效率的问题。
第一方面，本申请实施例提供了一种射频电路，应用于包括主集区域与分集区域的通讯终端，所述射频电路包括：射频收发电路，被配置为发射射频信号与接收射频信号；至少一个分集天线，各所述分集天线均设置于所述分集区域并通过中高频双向链路连接所述射频收发电路，所述中高频双向链路被配置为将所述射频收发电路发出的高频信号和/或中频信号传输至所述分集天线，以及将所述分集天线分集接收的高频信号和/或中频信号传输至所述射频收发电路；至少一个主集天线，各所述主集天线均设置于所述主集区域并通过中高频接收链路连接所述射频收发电路，所述中高频接收链路被配置为将所述主集天线主集接收的高频信号和/或中频信号传输至所述射频收发电路。
第二方面，本申请实施例提供了一种通讯终端，所述通讯终端包括如第一方面所述的射频电路。
附图说明
图1是本申请实施例中通讯终端的一种结构示意图；
图2是本申请实施例提供的射频电路的一种电路结构示意图；
图3是本申请实施例中的中高频双向链路的一种电路结构示意图；
图4是本申请实施例中的中高频接收链路的一种电路结构示意图；
图5是本申请实施例中的射频电路的另一种电路结构示意图；
图6是本申请实施例中的射频电路的另一种电路结构示意图；
图7是本申请实施例中的低频接收链路的一种电路结构示意图；
图8是本申请实施例中的低频双向链路的一种电路结构示意图；
图9是本申请实施例中的射频电路的另一种电路结构示意图；
图10是本申请实施例提供的一种通讯终端的结构示意性框图。
具体实施方式
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做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。
下面结合附图，对本申请的一些实施方式作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。
本申请实施例可以应用于通讯终端，该通讯终端包括主集区域与分集区域。其中，主集区域指的是通讯终端内部中主集电路与主集天线等区域，其中主集天线所在位置放置元器件较少，若将天线设置于主集区域，则该天线的净空区域将相对较大；而分集区域指的是通讯终端内部中分集电路与分集天线等区域，其中分集天线所在位置放置元器件较多，若将天线设置于分集区域，则该天线的净空区域将相对较小。在一些实施方式中，如图1所示，通讯终端的主集区域可以为位置靠下方的区域，而分集区域可以为位置靠上方的区域。
通常来说用户手握通讯终端时往往是握住通讯终端的下半部分，因此发明人发现，在此场景下会对主集区域的天线造成干扰，从而影响部分频段信号的天线效率，尤其是影响中高频信号发射的天线效率。换言之，用户手握通讯终端时会降低中高频信号发射的天线效率。
基于此，本申请实施例提供了一种射频电路，应用于包括主集区域与分集区域的通讯终端，如图2所示，该射频电路包括：射频收发电路10、至少一个分集天线20、若干中高频双向链路30、至少一个主集天线40与若干中高频接收链路50。
其中，各个分集天线20都设置在分集区域，每一个分集天线20均通过一个中高频双向链路30连接射频收发电路10，并且，中高频双向链路30可以被配置为将射频收发电路10发出的高频信号和/或中频信号传输至分集天线20，以及将分集天线20分集接收的高频信号和/或中频信号传输至射频收发电路10。需要说明的是，图2仅仅只是示意性地画出一个分集天线10而已，而分集天线10的数量取决于通讯终端。
在一些示例中，射频电路可以包括一个分集天线20与一个中高频双向链路30，则分集天线20可以作为中高频信号发射与分集接收的天线，且中高频双向链路30可以将射频收发电路10发出的高频信号与中频信号传输至分集天线20，以及将分集天线20分集接收的高频信号与中频信号传输至射频收发电路10。
在一些示例中，射频电路可以包括两个分集天线20与两个中高频双向链路30，则其中一个分集天线20可以作为高频信号发射与分集接收的天线，另外一个分集天线20可以作为中频信号发射与分集接收的天线。相应的，其中一个中高频双向链路30可以被配置为将射频收发电路10发出的高频信号传输至分集天线20，以及将分集天线20分集接收的高频信号传输至射频收发电路10，另外一个中高频双向链路30可以被配置为将射频收发电路10发出的中频信号传输至分集天线20，以及将分集天线20分集接收的中频信号传输至射频收发电路10。
其中，各个主集天线40都设置在主集区域，每一个主集天线40均通过一个中高频接收链路50连接射频收发电路10，并且，中高频接收链路50可以被配置为将主集天线40主集接收的高频信号和/或中频信号传输至射频收发电路10。需要说明的是，图2仅仅只是示意性地画出一个主集天线10而已，而主集天线10的数量取决于通讯终端。另外可以 理解的是，由于主集天线40设置在主集区域而分集天线20设置在分集区域，因此主集天线40的净空区域要大于分集天线20的净空区域，例如主集天线40的净空区域均大于分集天线20的净空区域。
在一些示例中，射频电路可以包括一个主集天线40和一个中高频接收链路50，则主集天线40可以作为中高频信号主集接收的天线，且中高频接收链路50可以将主集天线40主集接收的高频信号与中频信号传输至射频收发电路10。
其中，射频收发电路10可以被配置为发射射频信号与接收射频信号，在一些实施方式中，射频收发电路10包括射频收发器、射频收发芯片等。
此外，虽然用户手握通讯终端下半部分会降低中高频信号的天线效率，但是发明人发现此场景下对低频信号的影响相对较小，即对低频信号的天线效率影响较小，因此低频信号的发射、分集接收和主集接收可以灵活设置。在一些示例中，可以将分集天线20作为低频信号分集接收的天线，将主集天线40作为低频信号发射和主集接收的天线。
因此由上述论述可知，在用户手握通讯终端时，由于用户通常握住通讯终端的下半部分，因此本申请实施例将设置于分集区域的分集天线作为中高频信号发射与分集接收的天线，且将设置于主集区域的主集天线作为中高频信号主集接收的天线，从而降低了对中高频发射信号的影响，提高了中高频发射信号的天线效率。
在一些实施例中，如图3所示，中高频双向链路30包括中高频双工器301、接收链路302与发射链路303。
其中，中高频双工器301设置于分集区域，中高频双工器301连接分集天线20、接收链路302与发射链路303，接收链路302连接射频收发电路10，发射链路303通过功率放大电路304连接射频收发电路10。
在本领域一些情形中，双工器通常设置在主集区域，被配置为射频信号的发射和主集接收。而本申请实施例将中高频双工器301配置为射频信号的发射和分集接收，从而使得分集天线10可以作为中高频信号发射和分集接收的天线。另外，本申请实施例将中高频双工器301设置在分集区域，可以降低走线难度并减小走线插损。
其中，中高频双工器301可以被配置为高频信号和/或中频信号的发射和分集接收，功率放大电路304可以被配置为放大射频收发电路10发射的射频信号的功率，功率放大电路304可以包括宽频带的功率放大器件。在一些实施方式中，所有天线的发射链路可以共用一个功率放大电路304，即每个天线的发射链路均通过同一个功率放大电路304连接到射频收发电路10。
在一些实施例中，如图4所示，中高频接收链路50包括中高频滤波器501。其中，中高频滤波器501设置于主集区域，中高频滤波器501的输入端连接主集天线40，中高频滤波器501的输出端连接射频收发电路10。
在本领域一些情形中，滤波器通常设置在分集区域，被配置为射频信号的分集接收。而本申请实施例将中高频滤波器501配置为射频信号的主集接收，从而使得主集天线40可以作为中高频信号主集接收的天线。另外，本申请实施例将中高频滤波器501设置在主集区域，可以降低走线难度并减小走线插损。
在一些实施例中，如图5或图6所示，射频电路还包括低频接收链路60与低频双向链路70。
其中，至少一个分集天线20中的一个分集天线20通过低频接收链路60连接射频收 发电路10，低频接收链路60被配置为将对应的分集天线40分集接收的低频信号传输至射频收发电路10。至少一个主集天线40中的一个主集天线40通过低频双向链路70连接射频收发电路10，低频双向链路70被配置为将射频收发电路10发出的低频信号传输至对应的主集天线40，以及将对应的主集天线40主集接收的低频信号传输至射频收发电路10。
由上述论述可知低频信号的发射、主集接收和分集接收可以灵活设置，因此可以选择其中一个分集天线20作为低频信号分集接收的天线，并选择其中一个主集天线40作为低频信号发射和主集接收的天线。在一些实施方式中，如图5所示，一个分集天线20不仅可以作为中高频信号发射和分集接收的天线，还可以作为低频信号分集接收的天线；同时，一个主集天线40不仅可以作为中高频信号主集接收的天线，还可以作为低频信号发射和主集接收的天线。在一些实施方式中，如图6所示，一个分集天线20可以作为中高频信号发射和分集接收的天线，而其他分集天线20作为低频信号分集接收的天线；同时，一个主集天线40可以作为中高频信号主集接收的天线，而其他主集天线40作为低频信号发射和主集接收的天线。
在一些实施例中，如图7所示，低频接收链路60包括低频滤波器601。其中，低频滤波器601的输入端连接对应的分集天线20，低频滤波器601的输出端连接射频收发电路10。
在一些实施例中，如图8所示，低频双向链路70包括低频双工器701、接收链路702与发射链路703。其中，低频双工器701连接对应的主集天线40、接收链路702与发射链路703，接收链路702连接射频收发电路10，发射链路703通过功率放大电路704连接所述射频收发电路10。需要说明的是，功率放大电路704与上述功率放大电路304可以为同一个功率放大电路。
在一些实施例中，射频电路还包括若干个链路开关，链路开关连接于天线与对应的链路之间。在一些示例中，链路开关仅控制一个链路，例如分集天线20通过一个链路开关连接中高频双向链路30，或主集天线40通过一个链路开关连接中高频接收链路50。在一些示例中，链路开关控制两个或多个链路，例如分集天线20通过一个链路开关连接中高频双向链路30、低频接收链路60，或主集天线40通过一个链路开关连接中高频接收链路50、低频双向链路70。
在一些实施例中，如图9所示，射频电路可以包括两个分集天线20，分别为第一分集天线20与第二分集天线20，射频电路还可以包括两个中高频双向链路30，分别为第一中高频双向链路30与第二中高频双向链路30。
其中，第一分集天线20通过第一中高频双向链路30连接射频收发电路10，第一中高频双向链路30被配置为将射频收发电路10发出的高频信号传输至第一分集天线20，以及将第一分集天线20分集接收的高频信号传输至射频收发电路10。第二分集天线20通过第二中高频双向链路30连接射频收发电路10，第二中高频双向链路30被配置为将射频收发电路10发出的中频信号传输至第二分集天线20，以及将第二分集天线20分集接收的中频信号传输至射频收发电路10。
为了进一步提高中高频信号发射的天线效率，因此，第一分集天线20仅作为高频信号发射和分集接收的天线，且第一分集天线20在结构上、在分集区域的放置方式等都专门为高频信号而设置，而第一中高频双向链路30也可以专门为高频信号而设置。类似的，第二分集天线20仅作为中频信号发射和分集接收的天线，且第二分集天线20在结构上、 在分集区域的放置方式等都专门为中频信号而设置，而第二中高频双向链路30也可以专门为中频信号而设置。
在一些实施方式中，可以在两个分集天线20中选择一个作为低频信号分集接收的天线，如图9所示，例如选择第一分集天线20，则第一分集天线20还通过低频接收链路60连接射频收发电路10。
在一些实施方式中，由于主集天线40的净空区域较大，因此可以设置一个主集天线40作为高频信号主集接收的天线，即主集天线40通过中高频接收链路50连接射频收发电路10。此外，该主集天线40还可以作为低频信号发射和主集接收的天线，因此该主集天线40还可以通过低频双向链路70连接射频收发电路10。
本申请实施例还提供了一种通讯终端，如图10所示，该通讯终端包括如上所述的射频电路，具体实施例请参考上述论述。
本申请实施例提供的一种射频电路及通讯终端，在该射频电路中，分集天线设置于分集区域并通过中高频双向链路连接射频收发电路，中高频双向链路被配置为将射频收发电路发出的高频信号和/或中频信号传输至分集天线以及将分集天线分集接收的高频信号和/或中频信号传输至射频收发电路；主集天线设置于主集区域并通过中高频接收链路连接射频收发电路，中高频接收链路被配置为将主集天线主集接收的高频信号和/或中频信号传输至射频收发电路。基于此，在用户手握通讯终端时，由于将设置于分集区域的分集天线作为中高频信号发射与分集接收的天线，且将设置于主集区域的主集天线作为中高频信号主集接收的天线，从而降低了对中高频发射信号的影响，提高了中高频发射信号的天线效率。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (10)

  1. 一种射频电路，应用于包括主集区域与分集区域的通讯终端，所述射频电路包括：
    射频收发电路，被配置为发射射频信号与接收射频信号；
    至少一个分集天线，各所述分集天线均设置于所述分集区域并通过中高频双向链路连接所述射频收发电路，所述中高频双向链路被配置为将所述射频收发电路发出的高频信号和/或中频信号传输至所述分集天线，以及将所述分集天线分集接收的高频信号和/或中频信号传输至所述射频收发电路；
    至少一个主集天线，各所述主集天线均设置于所述主集区域并通过中高频接收链路连接所述射频收发电路，所述中高频接收链路被配置为将所述主集天线主集接收的高频信号和/或中频信号传输至所述射频收发电路。
  2. 根据权利要求1所述的射频电路，其中，所述中高频双向链路包括中高频双工器、接收链路与发射链路；
    所述中高频双工器设置于所述分集区域，所述中高频双工器连接所述分集天线、所述接收链路与所述发射链路，所述接收链路连接所述射频收发电路，所述发射链路通过功率放大电路连接所述射频收发电路。
  3. 根据权利要求1所述的射频电路，其中，所述中高频接收链路包括中高频滤波器；
    所述中高频滤波器设置于所述主集区域，所述中高频滤波器的输入端连接所述主集天线，所述中高频滤波器的输出端连接所述射频收发电路。
  4. 根据权利要求1所述的射频电路，其中，所述射频电路还包括若干链路开关，所述链路开关连接于天线与对应的链路之间。
  5. 根据权利要求1-4中任一项所述的射频电路，其中，所述射频电路还包括低频接收链路与低频双向链路；其中，
    所述至少一个分集天线中的一个分集天线通过所述低频接收链路连接所述射频收发电路，所述低频接收链路被配置为将对应的分集天线分集接收的低频信号传输至所述射频收发电路；
    所述至少一个主集天线中的一个主集天线通过所述低频双向链路连接所述射频收发电路，所述低频双向链路被配置为将所述射频收发电路发出的低频信号传输至对应的主集天线，以及将对应的主集天线主集接收的低频信号传输至所述射频收发电路。
  6. 根据权利要求5所述的射频电路，其中，所述低频接收链路包括低频滤波器；
    所述低频滤波器的输入端连接对应的分集天线，所述低频滤波器的输出端连接所述射频收发电路。
  7. 根据权利要求5所述的射频电路，其中，所述低频双向链路包括低频双工器、接收链路与发射链路；
    所述低频双工器连接对应的主集天线、所述接收链路与所述发射链路，所述接收链路连接所述射频收发电路，所述发射链路通过功率放大电路连接所述射频收发电路。
  8. 根据权利要求1-4任一项所述的射频电路，其中，所述至少一个分集天线包括第一分集天线与第二分集天线，所述若干中高频双向链路包括第一中高频双向链路与第二中高频双向链路；其中，
    所述第一分集天线通过所述第一中高频双向链路连接所述射频收发电路，所述第一中高频双向链路被配置为将所述射频收发电路发出的高频信号传输至所述第一分集天线，以 及将所述第一分集天线分集接收的高频信号传输至所述射频收发电路；
    所述第二分集天线通过所述第二中高频双向链路连接所述射频收发电路，所述第二中高频双向链路被配置为将所述射频收发电路发出的中频信号传输至所述第二分集天线，以及将所述第二分集天线分集接收的中频信号传输至所述射频收发电路。
  9. 根据权利要求1-4任一项所述的射频电路，其中，各所述主集天线的净空区域均大于各所述分集天线的净空区域。
  10. 一种通讯终端，包括如权利要求1-9任一项所述的射频电路。
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