WO2015117433A1 - 一种射频装置 - Google Patents

一种射频装置 Download PDF

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Publication number
WO2015117433A1
WO2015117433A1 PCT/CN2014/090396 CN2014090396W WO2015117433A1 WO 2015117433 A1 WO2015117433 A1 WO 2015117433A1 CN 2014090396 W CN2014090396 W CN 2014090396W WO 2015117433 A1 WO2015117433 A1 WO 2015117433A1
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signal
transmission module
module
frequency band
radio frequency
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PCT/CN2014/090396
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English (en)
French (fr)
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王文礼
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中兴通讯股份有限公司
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Publication of WO2015117433A1 publication Critical patent/WO2015117433A1/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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band

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  • the present invention relates to the field of communications technologies, and in particular, to a radio frequency device.
  • the invention provides a radio frequency device to at least solve the technical problem of high difficulty and complexity of the radio frequency front end design in the related art.
  • the present invention provides a radio frequency device, including: a radio frequency chip, a first antenna switch module, a high frequency band signal transmission module, a medium frequency band signal transmission module, and a low frequency band signal transmission module;
  • the radio frequency chip determines whether the frequency of the to-be-transmitted signal in the current communication system belongs to a high frequency band, a medium frequency band, or a low frequency band, and sends the to-be-sent signal to the high-band signal transmission module and the medium-frequency signal transmission according to the determination result. And a corresponding transmission module in the module and the low-band signal transmission module, and receiving a signal transmitted by the transmission module;
  • the high-band signal transmission module, the mid-band signal transmission module, and the low-band signal transmission module each include: an isolation transmission module configured to transmit and receive isolated signals and support a wide frequency band;
  • the radio frequency chip sends the to-be-sent signal to the isolated transmission module in the corresponding transmission module according to the judgment result;
  • the high frequency band signal transmission module, the medium frequency band signal transmission module, and the low frequency band signal transmission module further comprise: a power amplification module;
  • the power amplification module in the corresponding transmission module performs power amplification processing on the to-be-transmitted signal sent by the radio frequency chip, and transmits the processed signal to be transmitted to the isolation in the transmission module. Transmission module.
  • the high frequency band signal transmission module, the medium frequency band signal transmission module, and the low frequency band signal transmission module further include a first filtering module
  • the first filtering module in the corresponding transmission module receives the signal received by the first antenna switch module before the isolated transmission module transmits the signal received by the first antenna switch module to the radio frequency chip The signal is filtered.
  • the first filtering module includes a filter module.
  • the isolated transmission module comprises a circulator.
  • the current communication system includes: a TDD system and/or an FDD system.
  • the radio frequency device further includes: a second antenna switch module, a high frequency band signal line, a medium frequency band signal line, and a low frequency band signal line; the second antenna switch module receives the signal through the second antenna, and passes the The high frequency signal line, the medium frequency signal line, and the corresponding signal line of the low frequency signal line are transmitted to the radio frequency chip.
  • the high frequency signal line, the intermediate frequency signal line, and the low frequency signal line are all provided with a second filtering module, and the second filtering module filters the signal transmitted by the second switching module, and The filtered signal is transmitted to the radio frequency chip.
  • the high-band signal transmission module supports a frequency band 750M-950M for transmitting a signal
  • the frequency band of the medium-band signal transmission module supports a transmission signal is 1.7G-2.2G
  • the low-band signal transmission module supports transmission of a signal.
  • the frequency band is 2.3G-2.7G.
  • the invention provides a radio frequency device, has a simple structure, simplifies the radio frequency front end, and is convenient to implement, and solves the technical problem of high difficulty and complexity of the traditional radio frequency front end design.
  • the radio frequency device of the present invention comprises: a radio frequency chip, a first antenna switch module, a high frequency band signal transmission module, a medium frequency band signal transmission module and a low frequency band signal transmission module; the radio frequency chip determines that the frequency of the signal to be transmitted in the current communication system is high.
  • the first antenna switch module sends a signal to be sent in the corresponding transmission module through a first antenna, and receives a signal through the first antenna, and passes the transmission module
  • the received signal is transmitted to the radio frequency chip
  • the radio frequency device of the invention divides the frequency band in the communication system into high, medium and low frequency bands, and correspondingly adopts high, medium and low frequency band signal transmission modules to transmit signals, and the prior art Compared, it simplifies the design of the RF front-end, reduces the difficulty of RF front-end design and PCB walks. The difficulty to meet the needs of different bands with different formats, is conducive to miniaturization of product design.
  • FIG. 1 is a schematic diagram of a conventional RF front end design
  • FIG. 2 is a schematic structural diagram of a first radio frequency device according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a second radio frequency device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a first radio frequency system according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a third radio frequency device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a fourth radio frequency device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a fifth radio frequency device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a second radio frequency system according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a third radio frequency system according to an embodiment of the present invention.
  • the present embodiment provides a radio frequency device suitable for signal transmission (for example, FDD) in a multi-standard system.
  • the radio frequency device includes: Radio frequency chip, first antenna switch module, high frequency band signal transmission module, medium frequency band signal transmission module and low frequency band signal transmission module;
  • the radio frequency chip determines whether the frequency of the to-be-transmitted signal in the current communication system belongs to a high frequency band, a medium frequency band, or a low frequency band, and sends the to-be-sent signal to the high-band signal transmission module and the medium-frequency signal transmission according to the determination result. And a corresponding transmission module in the module and the low-band signal transmission module, and receiving a signal transmitted by the transmission module;
  • the radio frequency chip first determines which frequency band the frequency of the to-be-transmitted signal belongs to, and then sends the to-be-transmitted signal to the transmission module of the corresponding frequency band signal, and then sends it through the first antenna, and transmits the signal through the corresponding frequency band signal.
  • the signal received by the first antenna is transmitted to the radio frequency chip; the foregoing process implements data communication in the current communication system; in the radio device of the embodiment, the structure of the radio frequency front end is simple and convenient to implement, and the design of the radio frequency front end is reduced compared with the prior art.
  • the difficulty and the difficulty of PCB routing meet the needs of different frequency bands and different standards, which is conducive to the miniaturization of products.
  • the first switch module may be controlled by a software to connect the transmission module. For example, when the frequency of the signal to be transmitted belongs to a high frequency band, the first switch module is controlled to be connected to the high frequency band signal transmission module; similarly, when the signal to be transmitted is Similar control is used when the frequency belongs to the middle and low frequency bands.
  • the frequency band in the existing communication system can be divided into three frequency bands (including the frequency bands under the FDD and TDD standards) L (750M-950M), M (1.7G-2.2G), and H (2.3G-2.7). G), namely high, medium and low frequency bands; the corresponding high-band signal transmission module supports signal transmission in the frequency range of 750M-950M, and the same medium and low-band signal transmission modules support the frequency in 1.7G-2.2G, respectively. Signal transmission in 2.3G-2.7G.
  • the radio frequency device can allocate the ports of the radio frequency chip according to the frequency band characteristics through software, and each of H, M, and L is responsible for one port.
  • the high, medium and low frequency bands include multiple sub-bands, and the transmission and reception signals are mutually leaked in consideration of the support of the frequency band and the shared transmission and reception shared antenna (that is, the transmission signal is sent to the reception path, and the reception signal is sent to the transmission path).
  • the high, medium, and low frequency band signal transmission modules in this embodiment are implemented by an isolated transmission module configured to transmit and receive isolated signals and support a wide frequency band. As shown in FIG.
  • the radio frequency chip sends the to-be-transmitted signal to an isolated transmission module in a corresponding transmission module in a high-middle-low-band signal transmission mode according to the determination result; the first antenna switch module isolates the transmission module The signal to be transmitted is sent through the first antenna Going out, and receiving a signal through the first antenna, and then transmitting the received signal to the radio frequency chip through the isolated transmission module.
  • the isolated transmission module in this embodiment is a circulator.
  • the high-middle-low-band signal transmission module is composed of a circulator; wherein the port 1 of the circulator is connected to the transmitting port of the radio frequency chip, receives the signal to be transmitted, and the port 2 is connected to the first antenna switch module, and the port of the circulator 3 Receive the receiving port of the RF chip.
  • the isolated transmission module is a circulator in this embodiment, since the circulator has a good signal isolation effect, the high, medium and low frequency signal transmission modules can transmit signals in the TDD system.
  • the high, medium and low frequency signal transmission modules can be applied to signal transmission in FDD and/or TDD systems, and the signal transmission in the two systems shares the high, medium and low frequency signal transmission modules; the RF front end does not need to be directed to TDD.
  • the system sets the high, medium and low frequency signal transmission modules, which further simplifies the design of the RF front end and meets the requirements of TDD and FDD.
  • the radio frequency device in this embodiment can set the power amplification module to perform power amplification on the signal to be transmitted, and then send it out; specifically, as shown in FIG. 5, on the basis of FIG. 3, in this embodiment,
  • the high-band signal transmission module, the mid-band signal transmission module, and the low-band signal transmission module each further include: a power amplification module; the corresponding transmission module, the power amplification module transmitting the The signal to be transmitted is subjected to power amplification processing, and the processed signal to be transmitted is transmitted to the isolated transmission module in the transmission module.
  • the radio frequency chip transmits the signal to be transmitted to the middle frequency band signal transmission module, and the power amplification module in the middle frequency band signal transmission module performs power amplification processing on the transmission signal and transmits the isolation to the transmission module.
  • the transmission module, the first antenna switch module sends the to-be-transmitted signal in the isolated transmission module through the first antenna.
  • the radio frequency device of this embodiment may further set a filtering module to filter the received signal.
  • the high, medium and low frequency band signal transmission modules in the radio frequency device of the embodiment further include a first filtering module, and the first filtering module in the corresponding transmission module is isolated.
  • the transmission module performs filtering processing on the signal received by the first antenna switch module before transmitting the signal received by the first antenna switch module to the radio frequency chip.
  • the isolation transmission module in the transmission module sends the received signal to the first filtering module in the transmission module, and the first filtering module filters the received signal. After processing, it is sent to the RF chip.
  • the first filtering module in this embodiment includes a filter module (SAW module).
  • SAW module filter module
  • the radio frequency device of the embodiment may further include a second antenna switch module, a high frequency band signal line, and a middle frequency band. a signal line and a low-band signal line; the second antenna switch module receives a signal through the second antenna, and And transmitting, by the high frequency signal line, the medium frequency signal line, and the low frequency signal line to the radio frequency chip.
  • the radio frequency device in this embodiment may further include a second antenna switch module, a high frequency signal line (RXB H), a medium frequency signal line (RXB M), and a low frequency signal line ( RXB L); the second antenna switch module receives a signal (Div ANT) through the second antenna, and transmits the signal through the high frequency signal line, the medium frequency signal line, and the corresponding signal line in the low frequency signal line
  • the radio frequency chip is provided; in FIG. 8, the high-middle and low-frequency signal transmission module is composed of a circulator, a SAW module, and a power amplifier, and the first antenna switch module transmits and receives signals through a main antenna (Main ANT).
  • the radio frequency device of the embodiment only introduces the signal receiving situation of the two antennas
  • the radio frequency device of the embodiment can also be applied to the receiving situation of multiple antennas, and only needs to increase the switching module and the signals of the high, middle and low frequency bands accordingly.
  • the line is fine.
  • the embodiment may further provide the second filtering on the high frequency signal line, the intermediate frequency signal frequency line, and the low frequency signal line on the basis of the foregoing radio frequency device.
  • a module, the second filtering module performs filtering processing on the signal transmitted by the second switching module, and transmits the filtered signal to the radio frequency chip;
  • the second filtering module in the embodiment may be a filter module Group (SAW module).
  • SAW module filter module Group
  • the radio frequency device of the embodiment is provided with a SAW module on a high-medium-low-band signal transmission line, and a SAW module in a high-medium-low signal transmission module.
  • the signal frequency band supported by the high, medium and low frequency lines in this embodiment is the same as the above high, medium and low frequency transmission module.
  • the radio frequency device provided by the embodiment of the present invention has the following beneficial effects: dividing the frequency band in the communication system into high, medium, and low frequency bands, and correspondingly adopting high, medium, and low frequency band signal transmission modules to transmit signals, and present
  • the design of the RF front-end is simplified, the difficulty of the design of the RF front-end and the difficulty of the PCB routing are reduced, and the requirements of different frequency bands and different standards are satisfied, which is beneficial to the miniaturization design of the product.

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Abstract

本发明公开了一种射频装置。本发明射频装置包括射频芯片、第一天线开关模块、高频段信号传输模块、中频段信号传输模块和低频段信号传输模块；射频芯片判断当前通信制式下待发送信号的频率属于高频段、中频段还是低频段，并根据判断结果将所述待发送信号发送给高频段信号传输模块、中频段信号传输模块和低频段信号传输模块中对应的传输模块，以及接收该传输模块传输的信号；所述第一天线开关模块将所述对应的传输模块中的待发送信号通过第一天线发送出去，以及通过所述第一天线接收信号，并通过该传输模块将接收到的信号传输给所述射频芯片；本发明的装置解决了传统射频前端设计的难度和复杂度较高的技术问题。

Description

一种射频装置 技术领域
本发明涉及通信技术领域，尤其涉及一种射频装置。
背景技术
现阶段随着无线通信***的架构越来越复杂，要求所支持的频段与制式也越来越多，都希望采用一个硬件载体能够实现全球化的需求。由于频段与制式的不一样，会需要庞大的射频前端来实现如此多的频段与制式需求，会给设计者带来巨大的困难，同时也大大的增加了***的复杂度。如图1所示，传统的射频前端在实现FDD(频分双工)的制式下，一个频段对应一个双工器，为了满足多种频段的要求，会增加大量的双工器，使得射频前端相当的繁杂；同时，TDD(时分双工)还存在一些频段与FDD共用，为了区分TDD和FDD，原本可以共用的电路就必须要通过外接的开关来分开实现TDD与FDD。所以，传统射频前端设计的难度和复杂度较高。
发明内容
本发明提供了一种射频装置，以至少解决相关技术中射频前端设计的难度和复杂度较高的技术问题。
为解决上述技术问题，本发明提供一种射频装置，包括：射频芯片、第一天线开关模块、高频段信号传输模块、中频段信号传输模块和低频段信号传输模块；
所述射频芯片判断当前通信制式下待发送信号的频率属于高频段、中频段还是低频段，并根据判断结果将所述待发送信号发送给所述高频段信号传输模块、所述中频段信号传输模块和所述低频段信号传输模块中对应的传输模块，以及接收该传输模块传输的信号；
所述第一天线开关模块将所述对应的传输模块中的待发送信号通过第一天线发送出去，以及通过所述第一天线接收信号，并通过该传输模块将接收到的信号传输给所述射频芯片。
可选地，所述高频段信号传输模块、所述中频段信号传输模块和所述低频段信号传输模块均包括：设置为隔离信号收发并且支持宽频段的隔离传输模块；
所述射频芯片根据判断结果将所述待发送信号发送给所述对应的传输模块中的隔离传输模块；
所述第一天线开关模块将该隔离传输模块中的待发送信号通过所述第一天线发送出去，以及通过所述第一天线接收信号，通过该隔离传输模块将接收到的信号传输给所述射频芯片。
可选地，所述高频段信号传输模块、所述中频段信号传输模块和所述低频段信号传输模块均还包括：功率放大模块；
所述对应的传输模块中的所述功率放大模块对所述射频芯片发送的所述待发送信号进行功率放大处理，并将处理后的所述待发送信号传输给该传输模块中的所述隔离传输模块。
可选地，所述高频段信号传输模块、所述中频段信号传输模块和所述低频段信号传输模块均还包括第一滤波模块；
所述对应的传输模块中的所述第一滤波模块在所述隔离传输模块将所述第一天线开关模块接收到的信号传输给所述射频芯片之前对所述第一天线开关模块接收到的信号进行滤波处理。
可选地，所述第一滤波模块包括滤波器模组。
可选地，所述隔离传输模块包括环形器。
可选地，所述当前通信制式包括：TDD制式和/或FDD制式。
可选地，所述射频装置还包括：第二天线开关模块、高频段信号线路、中频段信号线路和低频段信号线路；所述第二天线开关模块通过第二天线接收信号，并通过所述高频段信号线路、所述中频段信号线路和所述低频段信号线路中对应的信号线路传输给所述射频芯片。
可选地，所述高频段信号线路、中频信号段线路和低频段信号线路均设有第二滤波模块，所述第二滤波模块对所述第二开关模块传输的信号进行滤波处理，并将滤波处理后的信号传输给所述射频芯片。
可选地，所述高频段信号传输模块支持传输信号的频段750M-950M，所述中频段信号传输模块支持传输信号的频段为1.7G-2.2G，所述低频段信号传输模块支持传输信号的频段为2.3G-2.7G。
本发明的有益效果是：
本发明提供了一种射频装置，结构简单、简化了射频前端，实现方便，解决了传统射频前端设计的难度和复杂度较高的技术问题。本发明的射频装置包括：射频芯片、第一天线开关模块、高频段信号传输模块、中频段信号传输模块和低频段信号传输模块；所述射频芯片判断当前通信制式下待发送信号的频率属于高频段、中频段还是低频段，并根据判断结果将所述待发送信号发送给所述高频段信号传输模块、所述中频段信号传输模块和所述低频段信号传输模块中对应的传输模块，以及接收该传输模块传输的信号；所述第一天线开关模块将所述对应的传输模块中的待发送信号通过第一天线发送出去，以及通过所述第一天线接收信号，并通过该传输模块将接收到的信号传输给所述射频芯片；本发明射频装置将通信***中的频段划分为高、中、低频段，并对应采用高、中、低频段信号传输模块来传输信号，与现有技术相比，简化了射频前端的设计，降低了射频前端设计的难度和PCB走线的难度，满足了不同频段与不同制式的需求，有利于产品的微型化设计。
附图说明
图1为现有射频前端设计的示意图；
图2为本发明实施例提供的第一种射频装置的结构示意图；
图3为本发明实施例提供的第二种射频装置的结构示意图；
图4为本发明实施例提供的第一种射频***的结构示意图；
图5为本发明实施例提供的第三种射频装置的结构示意图；
图6为本发明实施例提供的第四种射频装置的结构示意图；
图7为本发明实施例提供的第五种射频装置的结构示意图；
图8为本发明实施例提供的第二种射频***的结构示意图；
图9为本发明实施例提供的第三种射频***的结构示意图。
具体实施方式
下面通过具体实施方式结合附图对本发明作进一步详细说明。
考虑到传统射频前端的设计比较复杂以及难度较高的问题，本实施例提供了一种射频装置，适用于多制式下的信号传输(例如FDD)，如图2所示，该射频装置包括：射频芯片、第一天线开关模块、高频段信号传输模块、中频段信号传输模块和低频段信号传输模块；
所述射频芯片判断当前通信制式下待发送信号的频率属于高频段、中频段还是低频段，并根据判断结果将所述待发送信号发送给所述高频段信号传输模块、所述中频段信号传输模块和所述低频段信号传输模块中对应的传输模块，以及接收该传输模块传输的信号；
所述第一天线开关模块将所述对应的传输模块中的待发送信号通过第一天线发送出去，以及通过所述第一天线接收信号，并通过该传输模块将接收到的信号传输给所述射频芯片。
本实施例射频装置中射频芯片首先判断待发送信号的频率属于哪个频段，然后将待发送信号发送给对应频段信号的传输模块，接着通过第一天线发送出去，以及通过对应频段信号的传输模块将第一天线接收的信号传输给射频芯片；上述过程实现在当前通信制式下的数据通信；本实施例射频装置中射频前端的结构简单实现方便，与现有技术相比，降低了射频前端设计的难度和PCB走线的难度，满足了不同频段与不同制式的需求，有利于产品的微型化设计。
本实施例中第一开关模块可以由软件控制连接的传输模块，例如当待发送信号的频率属于高频段时，控制第一开关模块接通高频段信号传输模块；同理，当待发送信号的频率属于中、低频段时也采用类似的控制。
本实施例中可以将现有通信***中的频段区分为三个频段(包括FDD、TDD制式下的频段)L(750M-950M),M(1.7G-2.2G),H(2.3G-2.7G)，即高、中、低三个频段；对应的高频段信号传输模块支持频率在750M-950M中的信号传输，同理中、低频段信号传输模块分别支持频率在1.7G-2.2G、2.3G-2.7G中的信号传输。本实施例射频装置可以通过软件将射频芯片的端口根据频段特性进行分配，H,M,L各自负责一个端口。
高、中、低三个频段内包括多种子频段，考虑到频段的支持以及在共用收发共用天线的情况下收发信号相互泄露(即发射信号发送到接收路径中，接收信号发送至发送路径中)，如图3所示，本实施例中高、中、低频段信号传输模块由设置为隔离信号收发并且支持宽频段的隔离传输模块实现。如图3所示，所述射频芯片根据判断结果将所述待发送信号发送给高中低频段信号传输模中对应的传输模块中的隔离传输模块；所述第一天线开关模块将该隔离传输模块中的待发送信号通过所述第一天线发送 出去，以及通过所述第一天线接收信号，然后通过该隔离传输模块将接收到的信号传输给所述射频芯片。
优先地，本实施例中隔离传输模块为环形器。如图4所示，高中低频段信号传输模块由环形器构成；其中环形器的端口1接到射频芯片的发送端口，接收待发送信号，端口2与第一天线开关模块连接，环形器的端口3接到射频芯片的接收端口。当本实施例中隔离传输模块为环形器时，由于环形器具有很好的收发信号隔离效果，高、中、低频段信号传输模块可以传输TDD制式下的信号。此时，高、中、低频段信号传输模块可以适用与FDD和/或TDD制式下的信号传输，两个制式下的信号传输共用高、中、低频段信号传输模块；射频前端不需要针对TDD制式在设置高、中、低频段信号传输模块，进一步简化了射频前端的设计，同时满足TDD与FDD的需求。
考虑到信号的传输质量和距离，本实施例射频装置可以设置功率放大模块对待发送信号进行功率放大后发送出去；具体地，如图5所示，在图3的基础上，本实施例中所述高频段信号传输模块、所述中频段信号传输模块和所述低频段信号传输模块均还包括：功率放大模块；上述对应的传输模块中所述功率放大模块对所述射频芯片发送的所述待发送信号进行功率放大处理，并将处理后的所述待发送信号传输给该传输模块中所述隔离传输模块。例如判断当前信号频率属于中频段，所以射频芯片将待发送信号传输给中频段信号传输模块，中频段信号传输模块中的功率放大模块对待发送信号进行功率放大处理后传输给该传输模块中的隔离传输模块，第一天线开关模块将该隔离传输模块中的待发送信号通过第一天线发送出去。
考虑到接收信号中存在干扰信号，本实施例射频装置还可以设置滤波模块对接收的信号进行滤波。如图6所示，在图5的基础上，本实施例射频装置中高、中、低频段信号传输模块均还包括第一滤波模块，上述对应的传输模块中的所述第一滤波模块在隔离传输模块将所述第一天线开关模块接收到的信号传输给所述射频芯片之前对所述第一天线开关模块接收到的信号进行滤波处理。例如对应的传输模块为低频段信号传输模块时，该传输模块中的隔离传输模块将接收到的信号发送给该传输模块中的第一滤波模块，该第一滤波模块对接收到的信号进行滤波处理后发送给射频芯片。
优先地，本实施例中第一滤波模块包括滤波器模组(SAW模组)。
为了使本实施例射频装置适用于多天线的信号接收，如图7所示，在上述射频装置的基础上，本实施例射频装置还可以包括第二天线开关模块、高频段信号线路、中频段信号线路和低频段信号线路；所述第二天线开关模块通过第二天线接收信号，并 通过所述高频段信号线路、所述中频段信号线路和所述低频段信号线路传输给所述射频芯片。
如图8所示，在图6基础上，本实施例中射频装置还可以包括第二天线开关模块、高频段信号线路(RXB H)、中频段信号线路(RXB M)和低频段信号线路(RXB L)；所述第二天线开关模块通过第二天线接收信号(Div ANT)，并通过所述高频段信号线路、所述中频段信号线路和所述低频段信号线路中对应的信号线路传输给所述射频芯片；图8中由环形器、SAW模组、功率放大器构成的高中低频段信号传输模块，第一天线开关模块通过主天线(Main ANT)收发信号。
应当理解的是，虽然本实施例射频装置只介绍了两个天线的信号接收情况，但是本实施例射频装置还可以适用于多个天线的接收情况，只需相应增加开关模块和高中低频段信号线路即可。
优先地，考虑到接收到的信号中存在干扰信号，在上述射频装置的基础上，本实施例还可以在所述高频段信号线路、中频信号频段线路和低频段信号线路均设有第二滤波模块，所述第二滤波模块对所述第二开关模块传输的信号进行滤波处理，并将滤波处理后的信号传输给所述射频芯片；优先地本实施例中第二滤波模块可以滤波器模组(SAW模组)。如图9所示，在图8的基础上，本实施例射频装置在高中低频段信号传输线路上设有SAW模组，在高中低信号传输模块中还设有SAW模组。
本实施例高中低频段线路支持的信号频段与上述高中低频段传输模块相同。
以上内容是结合具体的实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。
工业实用性
如上所述，本发明实施例提供的射频装置具有以下有益效果：将通信***中的频段划分为高、中、低频段，并对应采用高、中、低频段信号传输模块来传输信号，与现有技术相比，简化了射频前端的设计，降低了射频前端设计的难度和PCB走线的难度，满足了不同频段与不同制式的需求，有利于产品的微型化设计。

Claims (10)

  1. 一种射频装置，包括：射频芯片、第一天线开关模块、高频段信号传输模块、中频段信号传输模块和低频段信号传输模块；
    所述射频芯片判断当前通信制式下待发送信号的频率属于高频段、中频段还是低频段，并根据判断结果将所述待发送信号发送给所述高频段信号传输模块、所述中频段信号传输模块和所述低频段信号传输模块中对应的传输模块，以及接收该传输模块传输的信号；
    所述第一天线开关模块将所述对应的传输模块中的待发送信号通过第一天线发送出去，以及通过所述第一天线接收信号，并通过该传输模块将接收到的信号传输给所述射频芯片。
  2. 如权利要求1所述的射频装置，其中，所述高频段信号传输模块、所述中频段信号传输模块和所述低频段信号传输模块均包括：设置为隔离信号收发并且支持宽频段的隔离传输模块；
    所述射频芯片根据判断结果将所述待发送信号发送给所述对应的传输模块中的隔离传输模块；
    所述第一天线开关模块将该隔离传输模块中的待发送信号通过所述第一天线发送出去，以及通过所述第一天线接收信号，通过该隔离传输模块将接收到的信号传输给所述射频芯片。
  3. 如权利要求2所述的射频装置，其中，所述高频段信号传输模块、所述中频段信号传输模块和所述低频段信号传输模块均还包括：功率放大模块；
    所述对应的传输模块中的所述功率放大模块对所述射频芯片发送的所述待发送信号进行功率放大处理，并将处理后的所述待发送信号传输给该传输模块中的所述隔离传输模块。
  4. 如权利要求3所述的射频装置，其中，所述高频段信号传输模块、所述中频段信号传输模块和所述低频段信号传输模块均还包括第一滤波模块；
    所述对应的传输模块中的所述第一滤波模块在所述隔离传输模块将所述第一天线开关模块接收到的信号传输给所述射频芯片之前对所述第一天线开关模块接收到的信号进行滤波处理。
  5. 如权利要求4所述的射频装置，其中，所述第一滤波模块包括滤波器模组。
  6. 如权利要求2至5中任一项所述的射频装置，其中，所述隔离传输模块包括环形器。
  7. 如权利要求6所述的射频装置，其中，所述当前通信制式包括：TDD制式和/或FDD制式。
  8. 如权利要求1至5中任一项所述的射频装置，其中，还包括：第二天线开关模块、高频段信号线路、中频段信号线路和低频段信号线路；所述第二天线开关模块通过第二天线接收信号，并通过所述高频段信号线路、所述中频段信号线路和所述低频段信号线路中对应的信号线路传输给所述射频芯片。
  9. 如权利要求8所述的射频装置，其中，所述高频段信号线路、中频信号段线路和低频段信号线路均设有第二滤波模块，所述第二滤波模块对所述第二开关模块传输的信号进行滤波处理，并将滤波处理后的信号传输给所述射频芯片。
  10. 如权利要求1至5中任一项所述的射频装置，其中，所述高频段信号传输模块支持传输信号的频段750M-950M，所述中频段信号传输模块支持传输信号的频段为1.7G-2.2G，所述低频段信号传输模块支持传输信号的频段为2.3G-2.7G。
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