WO2021238536A1 - Radio frequency pa mid device, radio frequency transceiving apparatus and communication device - Google Patents

Abstract

A radio frequency PA Mid device configured with a transmitting port (RFIN), a receiving port (RXOUT) and an antenna port (ANT). The radio frequency PA Mid device comprises: a transmitting circuit (210) comprising a power amplifier (211) for receiving a radio frequency signal sent by a radio frequency transceiver and performing power amplification on the radio frequency signal; a receiving circuit (230) comprising a low-noise amplifier (231) for amplifying the received radio frequency signal; a first control unit (240) connected to the control end of the low-noise amplifier (231) and for adjusting the gain coefficient of the low-noise amplifier (231) to reduce the cascade noise coefficient of a receiving link; and a switching circuit (220) for selectively conducting the receiving link where the receiving circuit is located or a transmitting link where the transmitting circuit is located.

Description

射频PA Mid器件、射频收发装置和通信设备Radio frequency PA Mid devices, radio frequency transceiver devices and communication equipment

相关申请的交叉引用Cross-references to related applications

本申请要求于2020年5月26日提交中国专利局、申请号为202010457434X发明名称为“射频PA Mid器件、射频收发装置和通信设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on May 26, 2020 with the application number 202010457434X and the invention titled "Radio Frequency PA Mid Device, Radio Frequency Transceiving Device and Communication Equipment", the entire content of which is incorporated by reference in In this application.

技术领域Technical field

本申请涉及射频技术领域，特别是涉及一种射频PA Mid器件、射频收发装置和通信设备。This application relates to the field of radio frequency technology, and in particular to a radio frequency PA Mid device, radio frequency transceiver and communication equipment.

背景技术Background technique

这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有示例性技术。The statements here only provide background information related to this application, and do not necessarily constitute existing exemplary technologies.

随着技术的发展和进步，5G移动通信技术逐渐开始应用于电子设备。5G移动通信技术通信频率相比于4G移动通信技术的频率更高。一般5G架构设计中定义了PA Mid器件，但是，当将该PA Mid器件应用到射频收发装置中接收射频信号(例如，N41频段的射频信号)时，其射频***接收链路的灵敏度较低。With the development and advancement of technology, 5G mobile communication technology has gradually begun to be applied to electronic devices. The communication frequency of 5G mobile communication technology is higher than that of 4G mobile communication technology. Generally, a PA Mid device is defined in the 5G architecture design. However, when the PA Mid device is applied to a radio frequency transceiver to receive radio frequency signals (for example, radio frequency signals in the N41 frequency band), the sensitivity of the radio system receiving link is low.

发明内容Summary of the invention

根据本申请的各种实施例，提供一种射频PA Mid器件、射频收发装置和通信设备。According to various embodiments of the present application, a radio frequency PA Mid device, radio frequency transceiver device, and communication equipment are provided.

一种射频PA Mid器件，被配置有用于连接射频收发器的发射端口、用于连接射频LNA器件的接收端口和用于连接天线的天线端口，所述射频PA Mid器件包括包括：A radio frequency PA Mid device is configured with a transmitting port used to connect to a radio frequency transceiver, a receiving port used to connect to a radio frequency LNA device, and an antenna port used to connect to an antenna. The radio frequency PA Mid device includes:

发射电路，所述发射电路包括功率放大器，所述功率放大器的输入端与所述发射端口连接，用于接收所述射频收发器发出的射频信号，并对所述射频信号进行功率放大；A transmitting circuit, the transmitting circuit includes a power amplifier, the input end of the power amplifier is connected to the transmitting port, and is used for receiving the radio frequency signal sent by the radio frequency transceiver and power amplifying the radio frequency signal;

接收电路，所述接收电路包括低噪声放大器，所述低噪声放大器的输出端连接至所述接收端口，用于对接收的所述射频信号进行放大处理；A receiving circuit, the receiving circuit includes a low noise amplifier, and an output end of the low noise amplifier is connected to the receiving port for amplifying the received radio frequency signal;

第一控制单元，与所述低噪声放大器的控制端连接，用于调节所述低噪声放大器的增益系数以降低所述接收链路的级联噪声系数；The first control unit is connected to the control terminal of the low noise amplifier, and is used to adjust the gain coefficient of the low noise amplifier to reduce the cascaded noise figure of the receiving link;

开关电路，所述开关电路分别与所述功率放大器的输出端及所述低噪声放大器的输入端、天线端口连接，用于选择导通所述接收电路所在的接收链路或所述发射电路所在的发射链路。A switch circuit, which is connected to the output terminal of the power amplifier, the input terminal of the low noise amplifier, and the antenna port, respectively, and is used to select and turn on the receiving link where the receiving circuit is located or where the transmitting circuit is located Transmission link.

一种射频收发装置，包括：A radio frequency transceiver, including:

如上述的射频PA Mid器件，Such as the above radio frequency PA Mid device,

天线，与所述天线端口连接，用于收发射频信号；An antenna, connected to the antenna port, for sending and receiving radio frequency signals;

射频LNA器件，与所述接收端口连接，用于对所述射频PA Mid器件输出的射频信号进行放大处理；A radio frequency LNA device, connected to the receiving port, and used to amplify the radio frequency signal output by the radio frequency PA Mid device;

射频收发器，分别与所述射频LNA器件、发射端口连接，用于向所述射频PA Mid器件发送所述射频信号，还用于接收经所述射频LNA器件放大处理的射频信号以实现对所述射频信号的收发控制。The radio frequency transceiver is respectively connected to the radio frequency LNA device and the transmitting port, and is used to send the radio frequency signal to the radio frequency PA Mid device, and is also used to receive the radio frequency signal amplified and processed by the radio frequency LNA device to realize the communication The transceiver control of the radio frequency signal.

一种通信设备，包括如上述的射频收发装置。A communication device includes the above-mentioned radio frequency transceiver device.

上述射频PA Mid器件、射频收发装置和通信设备，当在射频PA Mid器件中的开关电路和接收端口之间设置低噪声放大器后，可以使得该射频收发装置接收射频信号的接收链路的噪声系数降低，进而可以提升射频收发装置的灵敏度。The above radio frequency PA Mid device, radio frequency transceiver device and communication equipment, when the low noise amplifier is installed between the switch circuit and the receiving port in the radio frequency PA Mid device, the noise figure of the receiving link of the radio frequency transceiver device receiving the radio frequency signal can be made By reducing, the sensitivity of the radio frequency transceiver can be improved.

本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其他特征、 目的和优点将从说明书、附图以及权利要求书变得明显。The details of one or more embodiments of the present application are set forth in the following drawings and description. Other features, objectives and advantages of this application will become apparent from the description, drawings and claims.

附图说明Description of the drawings

为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

图1为一个实施例中射频收发装置的结构框图之一；FIG. 1 is one of the structural block diagrams of the radio frequency transceiver device in an embodiment;

图2为一个实施例中射频PA Mid器件的结构框图之一；Figure 2 is one of the structural block diagrams of a radio frequency PA Mid device in an embodiment;

图3为一个实施例中射频PA Mid器件的结构框图之二；Fig. 3 is a second structural block diagram of a radio frequency PA Mid device in an embodiment;

图4为一个实施例中射频PA Mid器件的结构框图之三；Fig. 4 is the third structural block diagram of a radio frequency PA Mid device in an embodiment;

图5a为一个实施例中射频PA Mid器件的引脚示意图；Fig. 5a is a schematic diagram of pins of a radio frequency PA Mid device in an embodiment;

图5b为一个实施例中射频PA Mid器件的封装结构示意图；Fig. 5b is a schematic diagram of a package structure of a radio frequency PA Mid device in an embodiment;

图6为一个实施例中射频收发装置的结构框图之二；Figure 6 is a second structural block diagram of the radio frequency transceiver device in an embodiment;

图7为一个实施例中功射频收发装置的结构框图之三；FIG. 7 is the third structural block diagram of the power radio frequency transceiver device in an embodiment;

图8为一个实施例中射频PA Mid器件的结构框图之四；Fig. 8 is a fourth structural block diagram of a radio frequency PA Mid device in an embodiment;

图9为一个实施例中功射频收发装置的结构框图之四。Fig. 9 is a fourth structural block diagram of the radio frequency transceiver device in an embodiment.

具体实施方式Detailed ways

为了便于理解本申请，为使本申请的上述目的、特征和优点能够更加明显易懂，下面结合附图对本申请的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本申请，附图中给出了本申请的较佳实施方式。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施方式。相反地，提供这些实施方式的目的是使对本申请的公开内容理解的更加透彻全面。本申请能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本申请内涵的情况下做类似改进，因此本申请不受下面公开的具体实施例的限制。In order to facilitate the understanding of this application and to make the above objectives, features and advantages of this application more comprehensible, specific implementations of this application will be described in detail below with reference to the accompanying drawings. In the following description, many specific details are explained in order to fully understand the application, and the preferred embodiments of the application are shown in the accompanying drawings. However, this application can be implemented in many different forms and is not limited to the implementation described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of this application more thorough and comprehensive. This application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of this application. Therefore, this application is not limited by the specific embodiments disclosed below.

此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。在本申请的描述中，“若干”的含义是至少一个，例如一个，两个等，除非另有明确具体的限定。In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless specifically defined otherwise. In the description of this application, "several" means at least one, such as one, two, etc., unless otherwise specifically defined.

本申请实施例涉及的射频收发装置可以应用到具有无线通信功能的通信设备，其通信设备可以为手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其他处理设备，以及各种形式的用户设备(User Equipment，UE)(例如，手机)，移动台(Mobile Station，MS)等等。为方便描述，上面提到的设备统称为通信设备。网络设备可以包括基站、接入点等。The radio frequency transceiver device involved in the embodiments of the present application can be applied to a communication device with wireless communication function. The communication device can be a handheld device, a vehicle-mounted device, a wearable device, a computing device, or other processing device connected to a wireless modem, as well as various In the form of User Equipment (UE) (for example, mobile phone), mobile station (Mobile Station, MS), and so on. For ease of description, the devices mentioned above are collectively referred to as communication devices. Network equipment may include base stations, access points, and so on.

如图1所示，本申请实施例中的射频收发装置10，包括天线100、射频PA Mid(Power Amplifier Modules including Duplexers，双工器模块的功率放大器模块)器件200、射频LNA(Low Noise Amplifier)器件300和射频收发器400。其中，在该射频PA Mid器件200的内部接收链路中，在接收端口RXOUT与开关电路220之间增加了低噪声放大器231，通过调节低噪声放大器231的增益系数以提高射频信号的接收链路的增益进而降低接收链路的级联噪声系数，进而可以提高该射频收发装置10的灵敏度。As shown in FIG. 1, the radio frequency transceiver device 10 in the embodiment of the present application includes an antenna 100, a radio frequency PA Mid (Power Amplifier Modules including Duplexers, a power amplifier module of a duplexer module) device 200, and a radio frequency LNA (Low Noise Amplifier) The device 300 and the radio frequency transceiver 400. Among them, in the internal receiving link of the radio frequency PA Mid device 200, a low noise amplifier 231 is added between the receiving port RXOUT and the switch circuit 220, and the gain coefficient of the low noise amplifier 231 is adjusted to improve the receiving link of the radio frequency signal. The gain of λ in turn reduces the cascaded noise figure of the receiving link, thereby improving the sensitivity of the radio frequency transceiver device 10.

灵敏度是指射频收发装置10(也可作为接收机)在满足一定误码率性能下，接收机能够接收到的最小输入信号电平。通信协议3GPP规定，在测试灵敏度指标时，要求比特误码率(Bit Error Rate，BER)必须低于5％，即吞吐量高于95％；在上述条件下，测得的 最小输入电平信号即为接收机的灵敏度。Sensitivity refers to the minimum input signal level that the radio frequency transceiver device 10 (which can also be used as a receiver) meets a certain bit error rate performance, the receiver can receive. The communication protocol 3GPP stipulates that when testing the sensitivity index, the Bit Error Rate (BER) must be lower than 5%, that is, the throughput is higher than 95%; under the above conditions, the measured minimum input level signal That is the sensitivity of the receiver.

灵敏度可以通过理论公式计算得出，具体如公式1所示：Sensitivity can be calculated by theoretical formula, as shown in formula 1:

Sensitivity＝-174+10lgBW+NF       (公式1)Sensitivity=-174+10lgBW+NF (Formula 1)

式中，BW是指接收机的工作频段带宽(Bandwidth)，单位是Hz；NF是指接收机的噪声系数(Noise Figure)，单位是dB。根据公式(1)，当获取工作频段带宽BW、接收机的噪声系数NF时，就可以从理论上计算接收机的灵敏度性能。In the formula, BW refers to the bandwidth of the receiver's operating frequency band (Bandwidth), in Hz; NF refers to the noise figure of the receiver (Noise Figure), in dB. According to formula (1), when the working frequency band bandwidth BW and the noise figure NF of the receiver are obtained, the sensitivity performance of the receiver can be calculated theoretically.

此外，由于接收机是由多个级联的器件构成的，其级联噪声系数的计算公式如公式(2)所示：In addition, since the receiver is composed of multiple cascaded devices, the calculation formula for the cascaded noise figure is shown in formula (2):

NF＝N1+(N2-1)/G1+(N3-1)/G1*G2+(N4-1)/G1*G2*G3+…    (公式2)NF=N1+(N2-1)/G1+(N3-1)/G1*G2+(N4-1)/G1*G2*G3+... (Formula 2)

式中，N1至N4分别代表第一级至第四级的噪声系数，G1至G3分别代表第一级至第三级的增益，通过公式(2)可以计算出整个接收链路最终的级联噪声。同时也可以看出级联噪声系数主要是由N1、N2和G1决定的，特别是N1直接累加到整机级联的噪声系数上；因此，降低N1是降低整机噪声系数最有效的手段。In the formula, N1 to N4 represent the noise figure of the first stage to the fourth stage respectively, and G1 to G3 represent the gain of the first stage to the third stage respectively. The final cascade of the entire receiving link can be calculated by formula (2) noise. At the same time, it can be seen that the cascaded noise figure is mainly determined by N1, N2 and G1, especially N1 is directly added to the cascaded noise figure of the whole machine; therefore, reducing N1 is the most effective means to reduce the noise figure of the whole machine.

在其中一个实施例中，射频PA Mid器件200可以对射频收发器400发出的预设频段的射频信号进行功率放大后，经天线100发射出去，同时，也可以经天线100接收预设频段的射频信号，并对接收的射频信号进行低噪声放大处理后，输出给射频收器进行处理以实现对射频信号的收发控制。In one of the embodiments, the radio frequency PA Mid device 200 can amplify the power of the radio frequency signal of the preset frequency band sent by the radio frequency transceiver 400, and then transmit it through the antenna 100. At the same time, it can also receive the radio frequency of the preset frequency band through the antenna 100. After performing low-noise amplification processing on the received radio frequency signal, it is output to the radio frequency receiver for processing in order to realize the control of the transceiver of the radio frequency signal.

如图2所示，在其中一个实施例中，射频PA Mid器件200被配置有用于连接所述射频收发器400的发射端口RFIN、用于连接所述天线100的天线端口ANT和用于连接射频LNA器件300的接收端口RXOUT。As shown in FIG. 2, in one of the embodiments, the radio frequency PA Mid device 200 is configured with a transmitting port RFIN for connecting to the radio frequency transceiver 400, an antenna port ANT for connecting to the antenna 100, and an antenna port ANT for connecting to radio frequency. The receiving port RXOUT of the LNA device 300.

其中，射频PA Mid器件200包括发射电路210、开关电路220接收电路230和第一控制单元240。其中，发射电路210包括功率放大器211，所述功率放大器211的输入端与所述发射端口RFIN连接，用于接收所述射频收发器400发出的射频信号，并对所述射频信号进行功率放大。示例性的，该功率放大器211可以理解为射频功率放大器211，能够对预设频段的射频信号进行功率放大处理。The radio frequency PA Mid device 200 includes a transmitting circuit 210, a switch circuit 220, a receiving circuit 230, and a first control unit 240. Wherein, the transmitting circuit 210 includes a power amplifier 211, and the input end of the power amplifier 211 is connected to the transmitting port RFIN, and is used to receive the radio frequency signal sent by the radio frequency transceiver 400, and to perform power amplification on the radio frequency signal. Exemplarily, the power amplifier 211 may be understood as a radio frequency power amplifier 211, which can perform power amplifying processing on radio frequency signals of a preset frequency band.

接收电路230，包括低噪声放大器231，所述低噪声放大器231分别与开关电路220、接收端口RXOUT连接，用于对接收的所述射频信号进行放大处理。The receiving circuit 230 includes a low noise amplifier 231, which is respectively connected to the switch circuit 220 and the receiving port RXOUT, and is used for amplifying the received radio frequency signal.

第一控制单元240，与所述低噪声放大器231的控制端连接，用于调节所述低噪声放大器231的增益系数以提高接收电路230所在接收链路的增益进而降低接收链路的级联噪声系数。The first control unit 240 is connected to the control terminal of the low noise amplifier 231, and is used to adjust the gain coefficient of the low noise amplifier 231 to increase the gain of the receiving link where the receiving circuit 230 is located, thereby reducing the cascaded noise of the receiving link coefficient.

开关电路220，分别与所述功率放大器221的输出端、天线端口ANT、低噪声放大器231的输入端连接，用于选择导通所述接收电路220所在的接收链路或所述发射电路230所在的发射链路。也即，开关电路220选择导通功率放大器221与天线端口ANT之间的通路时，就可对应导通发射链路，以实现对射频信号的发射控制。当开关电路220选择导通低噪声放大器231与天线端口ANT之间的通路时，就可对应导通接收链路，以实现对射频信号的接收控制。The switch circuit 220 is respectively connected to the output terminal of the power amplifier 221, the antenna port ANT, and the input terminal of the low noise amplifier 231, and is used to select and turn on the receiving link where the receiving circuit 220 is located or where the transmitting circuit 230 is located. Transmission link. That is, when the switch circuit 220 selects to turn on the path between the power amplifier 221 and the antenna port ANT, it can turn on the transmission link correspondingly, so as to realize the transmission control of the radio frequency signal. When the switch circuit 220 selects to turn on the path between the low noise amplifier 231 and the antenna port ANT, the receiving link can be turned on correspondingly, so as to realize the receiving control of the radio frequency signal.

在其中一个实施例中，该射频信号可以为5G信号，该5G信号的频段可以为N41频段、N77频段、N78频段、N79频段。具体地，N41的工作频段为496MHz-2690MHz，N77的工作频段为3.3GHz-4.2GHz，N78的工作频段为3.3GHz-3.8GHz，N79的工作频段为4.4GHz-5.0GHz。需要说明的是，N77的工作频段覆盖N78的工作频段。也即该射频PA Mid器件200能够支持N77频段的射频信号的收发时，也可以对应支持对N78频段的射频信号的收发。In one of the embodiments, the radio frequency signal may be a 5G signal, and the frequency band of the 5G signal may be the N41 frequency band, the N77 frequency band, the N78 frequency band, and the N79 frequency band. Specifically, the working frequency band of N41 is 496MHz-2690MHz, the working frequency band of N77 is 3.3GHz-4.2GHz, the working frequency band of N78 is 3.3GHz-3.8GHz, and the working frequency band of N79 is 4.4GHz-5.0GHz. It should be noted that the working frequency band of N77 covers the working frequency band of N78. That is, when the radio frequency PA Mid device 200 can support the transmission and reception of radio frequency signals in the N77 frequency band, it can also correspondingly support the transmission and reception of radio frequency signals in the N78 frequency band.

以射频信号为N41频段的5G信号为例进行说明，当在射频收发装置10中设置该射频PA Mid器件200，在该射频PA Mid器件200的接收链路中设置了低噪声放大器231，通过第一控制单元240可调节该低噪声放大器231的增益系数，可以降低射频收发装置10 整个接收链路的级联噪声系数，进而可以提升该射频收发装置10的灵敏度。Take the 5G signal of the N41 frequency band as an example for description. When the radio frequency PA Mid device 200 is set in the radio frequency transceiver 10, the low noise amplifier 231 is set in the receiving link of the radio frequency PA Mid device 200, and the radio frequency PA Mid device 200 is provided with a low noise amplifier 231. A control unit 240 can adjust the gain coefficient of the low noise amplifier 231, which can reduce the cascaded noise figure of the entire receiving link of the radio frequency transceiver device 10, thereby improving the sensitivity of the radio frequency transceiver device 10.

在其中一个实施例中，射频PA Mid器件200中的开关电路220可包括一个射频SPDT开关。示例性的，射频SPDT的一端与天线端口ANT连接，射频SPDT的一端与功率放大器211的输入端连接，射频SPDT的一端与低噪声放大器231的输出端连接，可用于选择导通所述接收电路230所在的接收链路或所述发射电路210所在的发射链路。In one of the embodiments, the switch circuit 220 in the radio frequency PA Mid device 200 may include a radio frequency SPDT switch. Exemplarily, one end of the radio frequency SPDT is connected to the antenna port ANT, one end of the radio frequency SPDT is connected to the input end of the power amplifier 211, and one end of the radio frequency SPDT is connected to the output end of the low noise amplifier 231, which can be used to selectively turn on the receiving circuit The receiving link where 230 is located or the transmitting link where the transmitting circuit 210 is located.

本申请实施例中，当控制射频SPDT开关的一端与功率放大器211的输出端导通连接时，可是导通该功率放大器211所在的发射链路以使天线100发射经功率放大处理的射频信号；当控制射频SPDT开关的一端与低噪声放大器231的输入端导通连接时，可是导通该低噪声放大器231所在的接收链路以使该射频收发装置10来处理天线100接收的射频信号。In the embodiment of the present application, when one end of the control radio frequency SPDT switch is electrically connected to the output end of the power amplifier 211, the transmission link where the power amplifier 211 is located is turned on so that the antenna 100 transmits the radio frequency signal processed by power amplification; When one end of the control radio frequency SPDT switch is connected to the input end of the low noise amplifier 231, the receiving link where the low noise amplifier 231 is located is turned on so that the radio frequency transceiver 10 can process the radio frequency signal received by the antenna 100.

可选的，开关电路220还可以为电子开关管、移动产业处理器(Mobile Industry Processor Interface，MIPI)接口和/或通用输入/输出(General-purpose input/output，GPIO)接口。其对应的控制单元可为MIPI控制单元和/或GPIO控制单元。示例性的，当需要导通接收链路或发射链路时，MIPI控制单元可以对应输出时钟和数据信号至与功率放大器211、低噪声放大器231连接的对应引脚。GPIO控制单元可对应输出高电平信号至与功率放大器211、低噪声放大器231连接的对应引脚。Optionally, the switch circuit 220 may also be an electronic switch tube, a mobile industry processor (MIPI) interface and/or a general-purpose input/output (GPIO) interface. The corresponding control unit can be a MIPI control unit and/or a GPIO control unit. Exemplarily, when the receiving link or the transmitting link needs to be turned on, the MIPI control unit may correspondingly output clock and data signals to corresponding pins connected to the power amplifier 211 and the low noise amplifier 231. The GPIO control unit can correspondingly output high-level signals to corresponding pins connected to the power amplifier 211 and the low noise amplifier 231.

需要说明的是，在本申请实施例中，对开关电路220的具体形式不做进一步的限定。It should be noted that, in the embodiment of the present application, the specific form of the switch circuit 220 is not further limited.

在其中一个实施例中，射频PA Mid器件200的第一控制单元240与所述低噪声放大器231连接，用于调节所述低噪声放大器231的增益系数。In one of the embodiments, the first control unit 240 of the radio frequency PA Mid device 200 is connected to the low noise amplifier 231 for adjusting the gain coefficient of the low noise amplifier 231.

示例性的，该第一控制单元240可以为移动行业处理器接口(Mobile Industry Processor Interface，MIPI)—射频前端控制接口(RF Front End Control Interface，RFFE)控制单元，当第一控制单元240为MIPI-RFFE控制单元时，其射频PA Mid器件200还被配置有时脉讯号的输入引脚CLK、单/双向数据讯号的输入或双向引脚SDATAS、电源引脚VDD、参考电压引脚VIO等等。Exemplarily, the first control unit 240 may be a Mobile Industry Processor Interface (MIPI)—RF Front End Control Interface (RFFE) control unit. When the first control unit 240 is MIPI -When the RFFE control unit is used, the radio frequency PA Mid device 200 is also configured with a pulse signal input pin CLK, a single/bidirectional data signal input or bidirectional pin SDATAS, a power supply pin VDD, a reference voltage pin VIO, and so on.

其中，本申请中射频PA Mid器件200中低噪声放大器231为增益可调节的放大器件。低噪声放大器231具有8个增益等级，具体设置如表1所示。Among them, the low noise amplifier 231 in the radio frequency PA Mid device 200 in this application is an amplifier device with adjustable gain. The low noise amplifier 231 has 8 gain levels, and the specific settings are shown in Table 1.

表1 低噪声放大器增益等级Table 1 Low noise amplifier gain level

增益等级Gain level	G7G7	G6G6	G5G5	G4G4	G3G3	G2G2	G1G1	G0G0
增益值(dB)Gain value (dB)	1717	1515	1313	1111	99	77	55	33

当射频PA Mid器件200中的低噪声放大器231的增益可调节时，第二控制单元250可以根据天线100接收的射频信号的功率值来调节其低噪声放大器231的增益等级。示例性的，当天线100接收的射频信号的功率值过高时，可以适当降低低噪声放大器231的增益等级。示例性，考虑到带内阻塞场景，大干扰信号可能造成带内阻塞，基于现有的数据预算带内阻塞，具体数值如表2所示，干扰信号为-44dBm时，得出射频收发器400的输入功率为-19.3dBm，接近最大输入功率，此时，可调节低噪声放大器231的增益等级，避免其射频信号的功率接近或大于射频收发器400的最大输入功率，对射频收发器400造成损害。When the gain of the low noise amplifier 231 in the radio frequency PA Mid device 200 is adjustable, the second control unit 250 can adjust the gain level of the low noise amplifier 231 according to the power value of the radio frequency signal received by the antenna 100. Exemplarily, when the power value of the radio frequency signal received by the antenna 100 is too high, the gain level of the low noise amplifier 231 can be appropriately reduced. For example, considering the in-band blocking scenario, large interference signals may cause in-band blocking. Based on the existing data budget in-band blocking, the specific values are shown in Table 2. When the interference signal is -44dBm, the radio frequency transceiver 400 is obtained. The input power is -19.3dBm, which is close to the maximum input power. At this time, the gain level of the low noise amplifier 231 can be adjusted to prevent the power of the RF signal from being close to or greater than the maximum input power of the RF transceiver 400, causing damage to the RF transceiver 400. damage.

表2 接收链路阻塞预算分析Table 2 Analysis of receiving link congestion budget

如图2所示，在其中一个实施例中，射频PA Mid器件200还包括第二控制单元250。其中，第二控制单元250分别与所述开关电路220、功率放大器211连接，用于控制所述开关电路220的通断，还用于控制所述功率放大器211的工作状态。As shown in FIG. 2, in one of the embodiments, the radio frequency PA Mid device 200 further includes a second control unit 250. Wherein, the second control unit 250 is respectively connected to the switch circuit 220 and the power amplifier 211, and is used to control the on and off of the switch circuit 220, and is also used to control the working state of the power amplifier 211.

其中，第二控制单元250与第一控制单元240的类型相同，可以为MIPI-RFFE控制单元，其符合RFFE总线的控制协议。Wherein, the second control unit 250 is of the same type as the first control unit 240, and may be a MIPI-RFFE control unit, which complies with the control protocol of the RFFE bus.

需要说明的是，在本申请实施例中，可以根据开关电路220的控制逻辑与第一控制单元240、第二控制单元250的控制逻辑相匹配，在本申请实施例中，对开关电路220、第一控制单元240、第二控制单元250的具体类型不做进一步的限定。It should be noted that in the embodiment of the present application, the control logic of the switch circuit 220 can be matched with the control logic of the first control unit 240 and the second control unit 250. In the embodiment of the present application, the control logic of the switch circuit 220, The specific types of the first control unit 240 and the second control unit 250 are not further limited.

如图3所示，在其中一个实施例中，射频PA Mid器件200还包括第一滤波器223。其中，第一滤波器223与所述开关电路220的控制端连接，用于对所述射频信号进行滤波处理。第一滤波器223可以将功率放大器211放大后的射频信号进行滤波处理，第一滤波器223仅允许预设频段(例如，N41频段)的射频信号通过。As shown in FIG. 3, in one of the embodiments, the radio frequency PA Mid device 200 further includes a first filter 223. Wherein, the first filter 223 is connected to the control terminal of the switch circuit 220 and is used for filtering the radio frequency signal. The first filter 223 may perform filtering processing on the radio frequency signal amplified by the power amplifier 211, and the first filter 223 only allows the radio frequency signal of a preset frequency band (for example, the N41 frequency band) to pass.

在其中一个实施例中，第一滤波器223可以为带通滤波器。其中，该带通滤波器的***损耗约为2.5dB。In one of the embodiments, the first filter 223 may be a band pass filter. Among them, the insertion loss of the band-pass filter is about 2.5dB.

在其中一个实施例中，射频PA Mid器件200被配置有耦合输出端口CPLOUT，射频PA Mid器件200还包括耦合单元241和耦合开关243。耦合单元241用于耦合发射通路中的射频信号，以能够实现对射频信号耦合输出，其输出的耦合信号可用于测量该射频信号的前向耦合功率和反向耦合功率。具体地，耦合单元241包括输入端a、输出端b、第一耦合端c和第二耦合端d。同时，耦合单元241还包括在输入端a和输出端b之间延伸的主线、以及在第一耦合端c和第二耦合之间延伸的副线。In one of the embodiments, the radio frequency PA Mid device 200 is configured with a coupling output port CPLOUT, and the radio frequency PA Mid device 200 further includes a coupling unit 241 and a coupling switch 243. The coupling unit 241 is used for coupling the radio frequency signal in the transmission path to realize coupling output of the radio frequency signal, and the output coupling signal can be used to measure the forward coupling power and the reverse coupling power of the radio frequency signal. Specifically, the coupling unit 241 includes an input terminal a, an output terminal b, a first coupling terminal c, and a second coupling terminal d. At the same time, the coupling unit 241 also includes a main line extending between the input terminal a and the output terminal b, and a secondary line extending between the first coupling terminal c and the second coupling.

其中，耦合单元241的输入端a与第一滤波器223连接，耦合单元341的输出端b与天线端口ANT连接，第一耦合端c用于对输入端a接收的射频信号进行耦合并输出前向耦合信号；第二耦合端d，用于对输出端b接收的射频信号的反射信号进行耦合并输出反向耦合信号。其中，基于第一耦合端c输出的前向耦合信号，可以检测该射频信号的前向功率信息；基于第二耦合端d输出的反向耦合信号，可以对应检测该射频信号的反向功率信息，并将该检测模式定义为反向功率检测模式。The input terminal a of the coupling unit 241 is connected to the first filter 223, the output terminal b of the coupling unit 341 is connected to the antenna port ANT, and the first coupling terminal c is used to couple the radio frequency signal received by the input terminal a and output it. The second coupling terminal d is used to couple the reflected signal of the radio frequency signal received by the output terminal b and output a reverse coupling signal. Among them, based on the forward coupling signal output by the first coupling end c, the forward power information of the radio frequency signal can be detected; based on the reverse coupling signal output by the second coupling end d, the reverse power information of the radio frequency signal can be correspondingly detected , And define the detection mode as the reverse power detection mode.

耦合开关243分别与第一耦合端c、第二耦合端d和耦合输出端口CPLOUT连接，用于选择性的导通第一耦合端c与耦合输出端口CPLOUT的第一耦合通路以实现对该射频信号前向功率的检测，并将该检测模式定义为反向功率检测模式，或，导通第二耦合端d与耦合输出端口CPLOUT的第二耦合通路以实现对该射频信号反向功率的检测，并将该检测模式定义为反向功率检测模式。也即，该耦合开关243用于在前向功率检测模式和反向功率检测模式之间进行切换。具体的，耦合单元341包括两个反向串联的定向耦合器。The coupling switch 243 is respectively connected to the first coupling end c, the second coupling end d, and the coupling output port CPLOUT, and is used to selectively turn on the first coupling path between the first coupling end c and the coupling output port CPLOUT to realize the radio frequency Signal forward power detection, and define the detection mode as a reverse power detection mode, or turn on the second coupling path between the second coupling end d and the coupling output port CPLOUT to realize the detection of the reverse power of the radio frequency signal , And define the detection mode as the reverse power detection mode. That is, the coupling switch 243 is used to switch between the forward power detection mode and the reverse power detection mode. Specifically, the coupling unit 341 includes two directional couplers connected in reverse series.

本实施例中，射频PA Mid器件200仅设置一个耦合输出端口CPLOUT，由于多个频段的射频信号并不是同时发射的，一个耦合输出端口CPLOUT也可以满足通信需求，而且还减少射频PA Mid器件30内部的射频走线复杂度，同时也可以提高射频PA Mid器件30各走线的隔离度性能。In this embodiment, the radio frequency PA Mid device 200 only has one coupling output port CPLOUT. Since the radio frequency signals of multiple frequency bands are not transmitted at the same time, one coupling output port CPLOUT can also meet the communication needs, and it also reduces the radio frequency PA Mid device 30 The complexity of the internal RF routing can also improve the isolation performance of each routing of the RF PA Mid device 30.

如图4所示，在其中一个实施例中，射频PA Mid器件200被配置有耦合输出端口CPLIN，所述射频PA Mid器件200还包括：切换开关245，分别与所述耦合开关243、耦合输入端口CPLIN、耦合输出端口CPLOUT连接。具体的，切换开关245可以为射频SPDT开关，该射频SPDT开关的单端子与耦合输入端口CPLIN连接，射频SPDT开关的两个选择端分别对应与耦合输出端口CPLOUT、耦合开关243连接。切换开关245用于选择导通该 耦合单元241输出耦合信号的第一耦合通道和导通所述外部耦合信号的第二耦合通道。As shown in FIG. 4, in one of the embodiments, the radio frequency PA Mid device 200 is configured with a coupling output port CPLIN, and the radio frequency PA Mid device 200 further includes a switch 245, which is respectively coupled to the coupling switch 243 and the coupling input port. The port CPLIN and the coupling output port CPLOUT are connected. Specifically, the switch 245 may be a radio frequency SPDT switch, the single terminal of the radio frequency SPDT switch is connected to the coupling input port CPLIN, and the two selection ends of the radio frequency SPDT switch are respectively connected to the coupling output port CPLOUT and the coupling switch 243 respectively. The switch 245 is used to select the first coupling channel through which the coupling unit 241 outputs the coupling signal and the second coupling channel through which the external coupling signal is turned on.

本申请实施例中，通过设置在射频PA Mid器件200中配置一耦合输入端口CPLIN，可以经其他射频PA Mid器件输出的耦合信号，经耦合输入端口CPLIN输入，再由耦合输出端口CPLOUT输出，可以缩短其他射频PA Mid器件的耦合传输的射频走线长度，减小了射频收发装置10布局的复杂度，同时还减少射频收发装置10占用PCB的面积，降低了成本。In the embodiment of this application, by configuring a coupling input port CPLIN in the radio frequency PA Mid device 200, the coupling signal output by other radio frequency PA Mid devices can be input via the coupling input port CPLIN, and then output via the coupling output port CPLOUT. Shortening the length of the RF traces for coupling transmission of other RF PA Mid devices reduces the complexity of the layout of the RF transceiver 10, and at the same time reduces the PCB area occupied by the RF transceiver 10 and reduces the cost.

在其中一个实施例中，射频PA Mid器件200包括开关电路220、第一滤波器223、低噪声放大器231以及射频走线，其接收链路的信号流向为：射频信号从天线端口ANT进入，经第一滤波器223、开关电路221、低噪声放大器231后，到接收端口RXOUT。其发射链路的信号流向为：射频信号从接收端口RFIN端口进入、功率放大器211、开关电路221、第一滤波器223后，到天线端口ANT。In one of the embodiments, the radio frequency PA Mid device 200 includes a switch circuit 220, a first filter 223, a low noise amplifier 231, and radio frequency traces. The signal flow direction of the receiving link is: the radio frequency signal enters from the antenna port ANT and passes through After the first filter 223, the switch circuit 221, and the low noise amplifier 231, to the receiving port RXOUT. The signal flow direction of the transmission link is: the radio frequency signal enters from the receiving port RFIN port, after the power amplifier 211, the switch circuit 221, and the first filter 223, to the antenna port ANT.

其中，以开关电路221为射频SPDT开关、第一滤波器223为带通滤波器为例进行说明。射频SPDT开关可参考开关RF1630，带通滤波器可参考SAFFB2G59AA1F0A器件，具体的***损耗值如图3表所示。Herein, the switch circuit 221 is a radio frequency SPDT switch and the first filter 223 is a band pass filter as an example for description. RF SPDT switch can refer to switch RF1630, band pass filter can refer to SAFFB2G59AA1F0A device, the specific insertion loss value is shown in the table in Figure 3.

表3 射频PA Mid器件内部接收链路***损耗Table 3 Insertion loss of receiving link inside radio frequency PA Mid device

器件Device	开关电路(dB)Switching circuit (dB)	第一滤波器(dB)First filter (dB)	射频走线损耗(dB)RF trace loss (dB)
指标index	0.50.5	2.52.5	0.50.5

在其中一个实施例中，该射频PA Mid器件200中，用于连接相邻两个器件之间的射频走线的总***损耗可记为0.5dB。In one of the embodiments, in the radio frequency PA Mid device 200, the total insertion loss of the radio frequency trace used to connect two adjacent devices can be recorded as 0.5 dB.

在本申请实施例中，射频PA Mid器件200中的各个器件均可集成封装在同一封装模组中。也即，发射电路210、开关电路220、接收电路230、第一滤波器223、第一控制单元240、第二控制单元250均集成封装在同一模组中，以构成一个封装芯片。In the embodiment of the present application, each device in the radio frequency PA Mid device 200 can be integrated and packaged in the same package module. That is, the transmitting circuit 210, the switching circuit 220, the receiving circuit 230, the first filter 223, the first control unit 240, and the second control unit 250 are all integrated and packaged in the same module to form a packaged chip.

具体的，该封装芯片可配置多个引脚，示例性的，如图5a所示，多个引脚可包括天线端口引脚、发射端口引脚、接收端口引脚、接地引脚、复位使能输入引脚、RFFE总线时钟输入引脚、RFFE总线数据输入/输出引脚、耦合输出引脚等等。其中，天线端口引脚与天线端口ANT对应，发射端口引脚与发射端口RFIN对应、接收端口引脚与接收端口RXOUT对应等等。Specifically, the packaged chip may be configured with multiple pins. Illustratively, as shown in FIG. 5a, the multiple pins may include antenna port pins, transmitting port pins, receiving port pins, ground pins, and reset pins. Can input pins, RFFE bus clock input pins, RFFE bus data input/output pins, coupled output pins, etc. Among them, the antenna port pin corresponds to the antenna port ANT, the transmitting port pin corresponds to the transmitting port RFIN, the receiving port pin corresponds to the receiving port RXOUT, and so on.

射频PA Mid器件200这一封装芯片的封装规格如图5b所示。该封装芯片的引脚数量可达30，该封装芯片在第一方向上的长度尺寸为5毫米、在第二方向上的宽度尺寸为3毫米，其相邻两个引脚之间的间距为0.4毫米，每个引脚的宽度尺寸和长度尺寸分别为0.25毫米、0.2毫米。The packaging specification of the packaged chip of the radio frequency PA Mid device 200 is shown in Figure 5b. The number of pins of the packaged chip can reach 30, the length of the packaged chip in the first direction is 5 mm, the width in the second direction is 3 mm, and the distance between two adjacent pins is 0.4 mm, and the width and length dimensions of each pin are 0.25 mm and 0.2 mm respectively.

在本申请实施例中，将射频PA Mid器件200中的各个器件封装在同一芯片中，可以提高集成度、减小各器件所占用的空间，便于器件的小型化。In the embodiment of the present application, each device in the radio frequency PA Mid device 200 is packaged in the same chip, which can improve integration, reduce the space occupied by each device, and facilitate the miniaturization of the device.

在本申请实施例中，可在射频收发装置10中的射频PA Mid器件200中增设低噪声放大器231，当射频PA Mid器件200中的开关电路220导通该接收电路230所在的接收链路时，其射频收发装置10接收该射频信号的流向为：In the embodiment of the present application, a low-noise amplifier 231 may be added to the radio frequency PA Mid device 200 in the radio frequency transceiving device 10, when the switch circuit 220 in the radio frequency PA Mid device 200 turns on the receiving link where the receiving circuit 230 is located , The flow direction of the radio frequency signal received by the radio frequency transceiver 10 is:

接收链路的信号流向：射频信号通过天线100进入，射频信号经射频走线流至射频PA Mid器件200的天线端口ANT；射频信号在由第一滤波器223至开关电路220，切换至接收电路230，经低噪声放大器231至接收端口RXOUT；射频信号从射频PA Mid器件200经射频走线到输入至射频LNA器件300；再由射频LNA器件300的MHB2端口进入，经射频LNA器件300的输出端口输出到射频收发器400。The signal flow direction of the receiving link: the radio frequency signal enters through the antenna 100, and the radio frequency signal flows to the antenna port ANT of the radio frequency PA Mid device 200 through the radio frequency trace; the radio frequency signal flows from the first filter 223 to the switch circuit 220, and then switches to the receiving circuit 230, through the low noise amplifier 231 to the receiving port RXOUT; the radio frequency signal from the radio frequency PA Mid device 200 through the radio frequency routing to input to the radio frequency LNA device 300; then enters the radio frequency LNA device 300 through the MHB2 port of the radio frequency LNA device 300 output The port outputs to the radio frequency transceiver 400.

结合前文的灵敏度计算公式(2)，当工作频段带宽确定时，该射频收发装置10的接收链路的噪声系数直接影响着射频收发装置10的灵敏度指标。在本申请中，射频收发装置10接收链路的噪声系数的等级共有六级，分别如下：Combined with the sensitivity calculation formula (2) above, when the bandwidth of the working frequency band is determined, the noise figure of the receiving link of the radio frequency transceiver 10 directly affects the sensitivity index of the radio frequency transceiver 10. In this application, there are six levels of noise figure of the receiving link of the radio frequency transceiver device 10, which are as follows:

第一等级：天线100到射频PA Mid器件200天线端口ANT之间的链路的无源损耗。示例性的无源损耗可包括滤波单元、射频开关等无源器件以及走线的损耗，天线100与射频PA Mid器件200天线端口ANT之间的链路在2.49～2.69GHz频段(N41)的无源损耗在2.55～2.8dB。The first level: the passive loss of the link between the antenna 100 and the antenna port ANT of the radio frequency PA Mid device 200. Exemplary passive loss may include the loss of passive components such as filter units, radio frequency switches, and wiring. The link between the antenna 100 and the radio frequency PA Mid device 200 antenna port ANT is in the 2.49-2.69 GHz frequency band (N41). The source loss is 2.55～2.8dB.

第二等级：射频PA Mid器件200内部接收链路的***损耗。The second level: the insertion loss of the internal receiving link of the radio frequency PA Mid device 200.

第三等级：射频PA Mid器件200与射频LNA器件300之间连接的走线，***损耗约2.5dB；The third level: the wiring between the radio frequency PA Mid device 200 and the radio frequency LNA device 300, the insertion loss is about 2.5dB;

第四等级：射频LNA器件300内部接收链路的噪声系数为1.2dB，如表4所示。The fourth level: The noise figure of the internal receiving link of the radio frequency LNA device 300 is 1.2dB, as shown in Table 4.

表4 射频LNA器件内部低噪声放大器参数信息Table 4 Parameter information of low noise amplifier inside RF LNA device

器件Device	增益(dB)Gain (dB)	噪声系数(dB)Noise figure (dB)
指标index	1717	1.21.2

第五等级：射频LNA器件300与射频收发器400之间连接的走线，***损耗约1dB；The fifth level: the wiring between the radio frequency LNA device 300 and the radio frequency transceiver 400, the insertion loss is about 1dB;

第六等级：射频收发器400的噪声系数是10dB。The sixth level: The noise figure of the radio frequency transceiver 400 is 10dB.

相比与传统的射频收发装置10的接收链路，在本申请实施例中，在射频PA Mid器件200中的开关电路221和接收端口RXOUT中设置了低噪声放大器231。根据噪声系数级联公式(2)，可计算获取传统的射频收发器400、本申请射频收发器400的接收链路的级联噪声系数。Compared with the receiving link of the traditional radio frequency transceiver device 10, in the embodiment of the present application, a low noise amplifier 231 is provided in the switch circuit 221 and the receiving port RXOUT of the radio frequency PA Mid device 200. According to the noise figure cascade formula (2), the cascaded noise figure of the receiving link of the traditional radio frequency transceiver 400 and the radio frequency transceiver 400 of the present application can be calculated and obtained.

传统方案：Traditional solution:

本申请方案：The application plan:

需要说明的是，在计算级联噪声系数时，其无源器件的无源损耗就是其噪声系数，射频走线的损耗就是其噪声系数。其中，L _无源损耗表示天线100到射频PA Mid器件200插损，L _{射频PA Mid器件插损1}表示射频PA Mid器件200(开关电路221+第一滤波器223)插损；L _{射频走线1损耗}表示射频PA Mid器件200与射频LNA器件300间的射频走线1的损耗，N _{射频LNA器件}表示射频LNA器件300的低噪声系数；N _{射频走线2+射频收发器}表示射频收发器400与射频LNA器件300间的射频走线2和射频收发器400的损耗。 It should be noted that when calculating the cascaded noise figure, the passive loss of the passive device is its noise figure, and the loss of the RF trace is its noise figure. Among them, L _{passive loss} means the insertion loss of antenna 100 to RF PA Mid device 200, L _{RF PA Mid device insertion loss 1} means RF PA Mid device 200 (switching circuit 221 + first filter 223) insertion loss; L _{RF wiring 1 Loss} indicates the loss of RF trace 1 between RF PA Mid device 200 and RF LNA device 300, N _{RF LNA device} indicates the low noise figure of RF LNA device 300; N _{RF trace 2+RF transceiver} indicates RF transceiver 400 The loss of the RF trace 2 and the RF transceiver 400 between the RF LNA device 300 and the RF LNA device 300.

式中，传统方案中接收链路的级联噪声系数与本实施例中接收链路的级联噪声系数公式中的前两项相同，其中，级联公式的第一项可以理解为天线100到射频PA Mid器件200的***损耗，级联公式的第二项可以理解为射频PA Mid器件200中开关、滤波器及射频走线的***损耗。级联公式的第三项，传统方案的公式中直接叠加了射频走线1的损耗值， 高达2.5dB，而本实施例中增加了射频PA Mid器件200中低噪声放大器231的噪声系数为1.2dB；级联公式的第四项，传统方案的公式中直接叠加了射频LNA器件300的噪声系数为1.2dB；而本实施例中增加了

约为0dB；级联公式的第五项和第六项，传统方案引入的噪声为0.1dB，本申请引入的噪声为0.4dB和0.2dB，其中，由于本申请射频走线1的增益低为-2.5dB，使引入的噪声系数较传统方案偏大。 In the formula, the cascaded noise figure of the receiving link in the traditional scheme is the same as the first two items in the cascaded noise figure formula of the receiving link in this embodiment, and the first term of the cascading formula can be understood as the antenna 100 to 100 For the insertion loss of the radio frequency PA Mid device 200, the second term of the cascade formula can be understood as the insertion loss of the switches, filters and radio frequency traces in the radio frequency PA Mid device 200. The third term of the cascading formula is that the loss value of the RF trace 1 is directly superimposed in the formula of the traditional scheme, which is as high as 2.5dB. In this embodiment, the noise figure of the low noise amplifier 231 in the RF PA Mid device 200 is 1.2. dB; the fourth term of the cascade formula, the formula of the traditional scheme directly superimposes the noise figure of the radio frequency LNA device 300 to be 1.2dB; and this embodiment adds

About 0dB; in the fifth and sixth terms of the cascade formula, the noise introduced by the traditional solution is 0.1dB, and the noise introduced by this application is 0.4dB and 0.2dB. Among them, because the gain of the RF trace 1 in this application is low, -2.5dB, which makes the introduced noise figure larger than the traditional scheme.

通过以上级联公式的计算和分析，可以得出以下结论：射频收发装置10接收链路中的噪声系数主要由级联公式的前四项决定，当在射频PA Mid器件200中的开关电路220和接收端口RXOUT之间设置低噪声放大器231后，就会降低该射频收发装置10的噪声系数，可以使得该射频收发装置10的接收链路的噪声系数降低2dB。Through the calculation and analysis of the above cascade formula, the following conclusions can be drawn: the noise figure in the receiving link of the radio frequency transceiver 10 is mainly determined by the first four terms of the cascade formula. When the switching circuit 220 in the radio frequency PA Mid device 200 After the low noise amplifier 231 is installed between the receiving port RXOUT and the receiving port RXOUT, the noise figure of the radio frequency transceiving device 10 will be reduced, which can reduce the noise figure of the receiving link of the radio frequency transceiving device 10 by 2 dB.

目前业内5G NR射频收发机性能指标参考泰尔协议，5G NR N41、N78、N79灵敏度的性能指标要求如表5所示。At present, the performance indicators of 5G NR radio frequency transceivers in the industry refer to the Thiel protocol, and the performance indicator requirements of 5G NR N41, N78, and N79 sensitivity are shown in Table 5.

表5 泰尔协议灵敏度指标要求Table 5 The sensitivity index requirements of the Thiel protocol

频段Frequency band	N41N41	N78N78	N79N79
灵敏度(dBm)Sensitivity (dBm)	-86.7-86.7	-86.3-86.3	-86.8-86.8

基于传统技术方案，其射频PA Mid器件200中未引入低噪声放大器231时，可以针对5G NR N41的灵敏度指标进行测试，具体的测试数据如表6所示。Based on the traditional technical solution, when the low noise amplifier 231 is not introduced in the radio frequency PA Mid device 200, the sensitivity index of 5G NR N41 can be tested. The specific test data is shown in Table 6.

表6 5G NR N41灵敏度测试数据Table 6 5G NR N41 sensitivity test data

信道channel	PRXPRX	DRXDRX	PRX MIMOPRX MIMO	DRX MIMODRX MIMO	四通道合路Four-channel combination
509202509202	-83-83	-85.5-85.5	-84-84	-86-86	-88-88
518598518598	-82.5-82.5	-85.5-85.5	-84-84	-86-86	-87.5-87.5
528000528000	-82-82	-85-85	-83.5-83.5	-85-85	-87-87

由此可见，传统方案中，5G NR N41的灵敏度性能是不达标的。It can be seen that in the traditional solution, the sensitivity performance of 5G NR N41 is not up to standard.

本申请实施例中，当在射频PA Mid器件200中的开关电路221和接收端口RXOUT之间设置低噪声放大器231后，就会降低该射频收发装置10的噪声系数。针对本申请所提供的射频收发装置10的接收链路进行预算分析，如表7所示，得出的灵敏度理论数值为-85.9dBm/100MHz；与原方案的-83.9dBm/100MHz相比，性能提升了2dB。In the embodiment of the present application, when the low noise amplifier 231 is provided between the switch circuit 221 in the radio frequency PA Mid device 200 and the receiving port RXOUT, the noise figure of the radio frequency transceiver 10 will be reduced. According to the budget analysis of the receiving link of the radio frequency transceiver 10 provided in the present application, as shown in Table 7, the theoretical sensitivity value obtained is -85.9dBm/100MHz; compared with the original solution of -83.9dBm/100MHz, the performance Improved by 2dB.

表7 本申请射频收发装置的接收链路灵敏度预算Table 7 Receive link sensitivity budget of the RF transceiver device of this application

本申请实施例中，从射频PA Mid器件200内部的架构入手，在射频PA Mid器件200的开关电路220的接收链路上，增加低噪声放大器231，通过提高接收链路的增益以达到降低接收链路的级联噪声系数，进而可以提升射频收发装置10的灵敏度。In the embodiment of this application, starting from the internal architecture of the radio frequency PA Mid device 200, a low noise amplifier 231 is added to the receiving link of the switch circuit 220 of the radio frequency PA Mid device 200, and the gain of the receiving link is increased to reduce the reception. The cascaded noise figure of the link can further improve the sensitivity of the radio frequency transceiver 10.

目前，在5G网络中会采用两种组网方式：独立组网(Standalone，SA)和非独立组网(Non-standalone，NSA)。两者对技术要求和实现方式有不同的需求，以NSA模式为例，需满足如下技术条件：Currently, two networking methods are used in 5G networks: standalone (SA) and non-standalone (NSA). The two have different requirements for technical requirements and implementation methods. Taking the NSA model as an example, the following technical conditions must be met:

其一，长期演进(Long Term Evolution，LTE)与5G新空口(New Radio，NR)基于双连接的方式进行通信，即LTE频段与NR频段能够同时工作。First, Long Term Evolution (LTE) and 5G New Radio (NR) communicate based on dual connectivity, that is, the LTE frequency band and the NR frequency band can work simultaneously.

这里，在LTE独立工作时，也可以支持双天线100或多天线100切换以及支持下行接收的4*4MIMO的能力。MIMO技术指在发射端口RFIN和接收端口RXOUT分别使用多个发射天线100和接收天线100，充分利用空间资源，通过多个天线100实现多发多收，在不增加频谱资源和天线100发射功率的情况下，可以成倍的提高***信道容量，显示出明显的优势、被视为下一代移动通信的核心技术。Here, when LTE works independently, it can also support dual-antenna 100 or multi-antenna 100 switching and the ability to support 4*4 MIMO for downlink reception. MIMO technology refers to the use of multiple transmitting antennas 100 and receiving antennas 100 at the transmitting port RFIN and receiving port RXOUT respectively, making full use of space resources, and achieving multiple transmissions and multiple receptions through multiple antennas 100 without increasing the spectrum resources and the transmission power of the antenna 100 Under this situation, the system channel capacity can be doubled, showing obvious advantages and being regarded as the core technology of next-generation mobile communication.

通信和基站可以构成2*2MIMO或者4*4MIMO，以4*4MIMO为例，接收通路天线端口ANT的配置如表8所示。The communication and base station can form 2*2MIMO or 4*4MIMO. Taking 4*4MIMO as an example, the configuration of the antenna port ANT of the receiving path is shown in Table 8.

表8 接收天线端口ANT配置Table 8 Receiving antenna port ANT configuration

通道aisle	Channel0Channel0	Channel1Channel1	Channel2Channel2	Channel3Channel3
天线端口ANTAntenna port ANT	PRXPRX	DRXDRX	PRX MIMOPRX MIMO	DRX MIMODRX MIMO

需要说明的是，在泰尔协议测试接收性能时，也是将4个接收链路全部连接到仪表。4个通道构成MIMO的下行，全部接收上行基站发出的信号，提高接收机的性能。It should be noted that when testing the receiving performance of the Tyre protocol, all 4 receiving links are also connected to the meter. The 4 channels form the downlink of MIMO, and all receive the signals sent by the uplink base station to improve the performance of the receiver.

其二，5G NR频段需要支持1发4收(1T4R)的信道探测参考信号(Sounding ReferenceSignal，SRS)天线100轮流发射技术。Second, the 5G NR frequency band needs to support the 1T4R (1T4R) channel sounding reference signal (Sounding Reference Signal, SRS) antenna 100 alternate transmission technology.

请继续参考图1，在其中一个实施例中，射频收发装置10，包括天线200、射频PA Mid器件200、射频LNA器件300和射频收发器400。Please continue to refer to FIG. 1, in one of the embodiments, the radio frequency transceiver device 10 includes an antenna 200, a radio frequency PA Mid device 200, a radio frequency LNA device 300, and a radio frequency transceiver 400.

在其中一个实施例中，天线100与射频PA Mid器件200的天线端口ANT连接，用于收发射频信号。其中，天线100可以为能够支持5G NR频段的天线100。示例性的，天线100可以使用任何合适类型的天线形成。例如，天线100可以包括由以下天线结构形成的具有谐振元件的天线：阵列天线结构、环形天线结构、贴片天线结构、缝隙天线结构、螺旋形天线结构、带状天线、单极天线、偶极天线中的至少一种等。不同类型的天线可以用于不同的频段和频段组合。在射频收发装置10中可以存在多个天线100。例如，可包括多个5G天线100。这些天线100可以为定向天线，也可以为非定向天线等。在本申请实施例中，对天线100的类型不做进一步的限定。In one of the embodiments, the antenna 100 is connected to the antenna port ANT of the radio frequency PA Mid device 200 for transmitting and receiving radio frequency signals. Wherein, the antenna 100 may be an antenna 100 capable of supporting the 5G NR frequency band. Exemplarily, the antenna 100 may be formed using any suitable type of antenna. For example, the antenna 100 may include an antenna with resonant elements formed by the following antenna structures: array antenna structure, loop antenna structure, patch antenna structure, slot antenna structure, helical antenna structure, strip antenna, monopole antenna, dipole At least one of the antennas, etc. Different types of antennas can be used in different frequency bands and frequency band combinations. There may be multiple antennas 100 in the radio frequency transceiver 10. For example, multiple 5G antennas 100 may be included. These antennas 100 may be directional antennas or non-directional antennas. In the embodiment of the present application, the type of the antenna 100 is not further limited.

低放模块射频LNA器件300，与所述接收端口RXOUT连接，用于对所述功放前端模组射频PA Mid器件200输出的射频信号进行放大处理。其中，该低放模块射频LNA器件300可包括多个能够对不同频段的射频信号进行放大处理的低噪声放大器(图中未示)。其中，射频LNA器件300中至少包括能够对N41频段的射频信号进行低噪声放大处理的低噪声放大器。The low amplifier module radio frequency LNA device 300 is connected to the receiving port RXOUT, and is used to amplify the radio frequency signal output by the power amplifier front-end module radio frequency PA Mid device 200. Wherein, the low-level module radio frequency LNA device 300 may include multiple low-noise amplifiers (not shown in the figure) capable of amplifying radio frequency signals of different frequency bands. Wherein, the radio frequency LNA device 300 includes at least a low noise amplifier capable of performing low noise amplification processing on radio frequency signals in the N41 frequency band.

射频收发器400，分别与所述低放模块射频LNA器件300、发射端口RFIN连接，用于向所述功放前端模组射频PA Mid器件200发送所述射频信号，还用于接收经射频LNA器件300放大处理的射频信号。示例性的，射频收发器400可以包括发射器(诸如发射器TX)和接收器(诸如接收器RX)，或者可以仅包含接收器(例如，接收器RX)或者仅包含发射器(例如，发射器TX)。示例性的，射频收发器400可用于实现中频信号和基带信号之间的变频处理，或/和，用于实现中频信号与高频信号的变频处理等等。The radio frequency transceiver 400 is respectively connected to the low-level module radio frequency LNA device 300 and the transmitting port RFIN, and is used to send the radio frequency signal to the power amplifier front-end module radio frequency PA Mid device 200, and is also used to receive the radio frequency LNA device 300 amplifies the processed radio frequency signal. Exemplarily, the radio frequency transceiver 400 may include a transmitter (such as a transmitter TX) and a receiver (such as a receiver RX), or may include only a receiver (such as a receiver RX) or only a transmitter (such as a transmitter).器TX). Exemplarily, the radio frequency transceiver 400 may be used to implement frequency conversion processing between an intermediate frequency signal and a baseband signal, or/and, to implement frequency conversion processing between an intermediate frequency signal and a high frequency signal, and so on.

如图6所示，在其中一个实施例中，所述射频PA Mid器件200的数量为两个，分别为第一射频PA Mid器件210、第二射频PA Mid器件220；所述射频LNA器件的数量为两个，分别为第一射频LNA器件310、第二射频LNA器件300；所述天线的数量为四个，分别为第一天线Ant0、第二天线Ant1、第三天线Ant2和第四天线Ant3；所述射频收发装置10还包括第一开关模块510和第二开关模块520。As shown in FIG. 6, in one of the embodiments, the number of the radio frequency PA Mid device 200 is two, which are the first radio frequency PA Mid device 210 and the second radio frequency PA Mid device 220; The number is two, namely the first radio frequency LNA device 310 and the second radio frequency LNA device 300; the number of antennas is four, respectively, the first antenna Ant0, the second antenna Ant1, the third antenna Ant2, and the fourth antenna Ant3; The radio frequency transceiver 10 also includes a first switch module 510 and a second switch module 520.

其中，所述第一射频PA Mid器件210分别与射频收发器400、第一射频LNA器件310、第一开关模块510的第一端连接，所述第一开关模块510的第二端分别与所述第一天线Ant0、第二天线Ant1、第二开关模块520的第一端连接，第一开关模块510的第一端还与 所述第二射频LNA器件300连接；所述第二射频PA Mid器件220分别与射频收发器400、第二射频LNA器件300、第二开关模块520的第一端连接，所述第三天线Ant2、第四天线Ant3分别与所述第二开关模块520的第二端连接，所述第二开关模块520的第一端还与所述第二射频LNA器件300连接。Wherein, the first radio frequency PA Mid device 210 is respectively connected to the first end of the radio frequency transceiver 400, the first radio frequency LNA device 310, and the first switch module 510, and the second end of the first switch module 510 is respectively connected to the first end of the first switch module 510. The first antenna Ant0, the second antenna Ant1, and the first end of the second switch module 520 are connected, and the first end of the first switch module 510 is also connected to the second radio frequency LNA device 300; the second radio frequency PA Mid The device 220 is respectively connected to the first end of the radio frequency transceiver 400, the second radio frequency LNA device 300, and the second switch module 520. The third antenna Ant2 and the fourth antenna Ant3 are respectively connected to the second end of the second switch module 520. The first end of the second switch module 520 is also connected to the second radio frequency LNA device 300.

在其中一个实施例中，第一开关模块510和第二开关模块520均可以采用多路选择开关，例如3P3T开关、多个电子开关管构成的电子开关组等。In one of the embodiments, both the first switch module 510 and the second switch module 520 may use multiple selection switches, such as a 3P3T switch, an electronic switch group composed of multiple electronic switch tubes, and the like.

以第一开关模块510和第二开关模块520为3P3T开关为例进行说明。其中，第一开关模块510包括三个第一端和三个第二端。示例性的，第一开关模块510的一个第一端与第一射频PA Mid器件210连接，第一开关模块510的另一第一端与第二射频LNA器件300连接，第一开关模块510的一第二端与第一天线Ant0连接，第一开关模块510的另一第二端与第二开关模块520的一第一端连接，第一开关模块510的又一第二端与第二天线Ant1连接。Take the first switch module 510 and the second switch module 520 as 3P3T switches as an example for description. Wherein, the first switch module 510 includes three first ends and three second ends. Exemplarily, one first end of the first switch module 510 is connected to the first radio frequency PA Mid device 210, the other first end of the first switch module 510 is connected to the second radio frequency LNA device 300, and the first switch module 510 A second end is connected to the first antenna Ant0, the other second end of the first switch module 510 is connected to a first end of the second switch module 520, and the other second end of the first switch module 510 is connected to the second antenna Ant1 connection.

第二开关模块520的另一第一端与第一射频PA Mid器件210连接，第二开关模块520的又一第一端与第二射频PA Mid器件220连接，第二开关模块520的一第二端与第三天线Ant2连接，第二开关模块520的另一第二端与第四天线Ant3连接。The other first end of the second switch module 520 is connected to the first radio frequency PA Mid device 210, the other first end of the second switch module 520 is connected to the second radio frequency PA Mid device 220, and the first end of the second switch module 520 is connected to the second radio frequency PA Mid device 220. The two ends are connected to the third antenna Ant2, and the other second end of the second switch module 520 is connected to the fourth antenna Ant3.

在本申请实施例中，对第一开关模块510和第二开关模块520的具体类型不做进一步的限定。In the embodiment of the present application, the specific types of the first switch module 510 and the second switch module 520 are not further limited.

本申请实施例中，可以通过控制第一开关模块510和第二开关模块520，来选择切换射频收发装置10不同的接收链路和发射链路以使四支天线100同时接收射频信号，并同时还能控制一条发射链路发射射频信号。或，可以通过控制第一开关模块510和第二开关模块520，来选择切换射频收发装置10不同的接收链路和发射链路以使四支天线100同时接收射频信号，并同时还能控制两条发射链路发射射频信号。或，通过控制第一开关模块510和第二开关模块520，选择切换射频收发装置10不同的发射链路以使四支天线100依次发射射频信号以支持通过探测参考信号SRS在发射天线100间轮发发送4端口SRS的功能，还可以支持所述4根天线同时接收数据的功能。In the embodiment of the present application, the first switch module 510 and the second switch module 520 can be controlled to select and switch different receiving links and transmitting links of the radio frequency transceiver 10 so that the four antennas 100 can receive radio frequency signals at the same time. It can also control a transmitting link to transmit radio frequency signals. Or, by controlling the first switch module 510 and the second switch module 520, different receiving links and transmitting links of the radio frequency transceiver 10 can be selected to switch so that the four antennas 100 can receive radio frequency signals at the same time, and at the same time can control two A transmission link transmits radio frequency signals. Or, by controlling the first switch module 510 and the second switch module 520, the different transmission links of the radio frequency transceiver 10 are selected to switch so that the four antennas 100 sequentially transmit radio frequency signals to support the sounding reference signal SRS between the transmitting antennas 100. The function of transmitting 4-port SRS can also support the function of receiving data at the same time by the 4 antennas.

表9 收发链路路详细路径配置表Table 9 Detailed path configuration table of the transceiver link

To	N41N41
TXO&PRXTXO&PRX	路径1->路径5Path 1->path 5
DRXDRX	路径2->路径7Path 2 -> Path 7
TX1&MIMO PRXTX1&MIMO PRX	路径4->路径8Path 4->path 8
MIMO DRXMIMO DRX	路径3->路径9Path 3->path 9

表9中，TXO&PRX表示主发射链路和主集接收链路，DRX表示分集接收链路，TX1&MIMO PRX示辅助发射链路和MIMO主集接收链路,MIMO DRX表示MIMO分集接收链路。In Table 9, TXO&PRX refers to the main transmission link and the main set receiving link, DRX refers to the diversity reception link, TX1&MIMO PRX refers to the auxiliary transmission link and the MIMO main set receiving link, and MIMO DRX refers to the MIMO diversity reception link.

表10 发射链路路径配置表Table 10 Transmission link path configuration table

To	N41N41
Channel0Channel0	路径1->路径5Path 1->path 5
Channel1Channel1	路径1->路径7Path 1->path 7
Channel2Channel2	路径1->路径6->路径8Path 1->path 6->path 8
Channel3Channel3	路径1->路径6->路径9Path 1->path 6->path 9

表9中，Channel0、Channel1、Channel2、Channel3分别为天线100轮流发射的发射链路。In Table 9, Channel0, Channel1, Channel2, and Channel3 are the transmission links that the antenna 100 transmits in turn.

本申请实施例中的射频收发装置10可以实现通信设备在频分复用FDD制式中的支持通过探测参考信号SRS在4根天线间轮流发送，以实现IT4R的SRS功能，还可以支持所述4根天线同时接收数据的功能。The radio frequency transceiver 10 in the embodiment of the present application can realize the support of the communication equipment in the frequency division multiplexing FDD system. The sounding reference signal SRS is transmitted in turn among the 4 antennas to realize the SRS function of IT4R. It can also support the 4 The function of receiving data at the same time with one antenna.

如图7所示，在其中一个实施例中，射频收发装置10还包括：第一滤波单元610和 第二滤波单元620。其中，第一滤波单元610分别与所述第一射频PA Mid器件210的天线端口ANT、所述第一开关模块510的第一端，用于对所述第一天线Ant0接收的射频信号进行滤波处理；第二滤波单元620，分别与所述第二射频PA Mid器件220的天线端口ANT、所述第二开关模块520的第一端连接，用于对所述第二天线Ant1接收的射频信号进行滤波处理。As shown in FIG. 7, in one of the embodiments, the radio frequency transceiver device 10 further includes: a first filtering unit 610 and a second filtering unit 620. Wherein, the first filtering unit 610 is used for filtering the radio frequency signal received by the first antenna Ant0, respectively, with the antenna port ANT of the first radio frequency PA Mid device 210 and the first end of the first switch module 510 Processing; the second filter unit 620, respectively connected with the antenna port ANT of the second radio frequency PA Mid device 220 and the first end of the second switch module 520, for the radio frequency signal received by the second antenna Ant1 Perform filtering processing.

具体的，所述第一滤波单元610和所述第二滤波单元620均为低通滤波器，用于滤除杂散波，其允许预设频段的射频信号通过，以提高射频收发器400接收到的射频信号的精准度，进而提升射频收发装置10的性能。Specifically, the first filtering unit 610 and the second filtering unit 620 are both low-pass filters for filtering spurious waves, which allow radio frequency signals of a preset frequency band to pass, so as to improve the reception of the radio frequency transceiver 400. The accuracy of the received radio frequency signal further improves the performance of the radio frequency transceiver 10.

在其中一个实施例中，射频收发装置10还包括第三滤波单元630和第四滤波单元640。第三滤波单元630，分别与所述第二射频LNA器件300、所述第一开关模块510的第一端，用于对所述第三天线Ant2接收的射频信号进行滤波处理；第四滤波单元640，分别与所述第二射频LNA器件300、所述第二开关模块520的第一端，用于对所述第四天线Ant3接收的射频信号进行滤波处理。In one of the embodiments, the radio frequency transceiver 10 further includes a third filtering unit 630 and a fourth filtering unit 640. The third filter unit 630, respectively, and the first end of the second radio frequency LNA device 300 and the first switch module 510 are used to filter the radio frequency signal received by the third antenna Ant2; the fourth filter unit 640, respectively, and the first end of the second radio frequency LNA device 300 and the second switch module 520 are used to filter the radio frequency signal received by the fourth antenna Ant3.

具体的，所述第三滤波单元630和第四滤波单元640均为低通滤波器，用于滤除杂散波，其允许预设频段的射频信号通过，以提高射频收发器400接收到的射频信号的精准度，进而提升射频收发装置10的性能。Specifically, the third filtering unit 630 and the fourth filtering unit 640 are both low-pass filters for filtering spurious waves, which allow radio frequency signals of a preset frequency band to pass through, so as to improve the radio frequency received by the radio frequency transceiver 400. The accuracy of the radio frequency signal further improves the performance of the radio frequency transceiver 10.

参考图7，示例性的，以PRX接收链路为例，射频信号的流向可以理解为：射频信号通过第一天线Ant0进入，经路径5流向3P3T开关；切换至路径1后，射频信号流经第一滤波单元610至射频PA Mid器件200的天线端口ANT；射频信号经第一滤波器223到开关电路220切换至接收电路210，经低噪声放大器231至接收端口RXOUT；射频信号从接收端口RXOUT流经射频走线1到射频LNA器件300的MHB2端口，经MHB2端口进入，流经射频LNA器件300UT1端口输出，流经射频走线2至射频收发器400。结合表7的理论计算数据，得出如表11所示的RX四通道合路的灵敏度指标。其中，表7中的天线100到射频PA Mid器件200插损可以理解为天线100插座、第一滤波单元610、第一开关模块510及以相邻器件间的射频走线的无源损耗。Referring to Fig. 7 exemplarily, taking the PRX receiving link as an example, the flow of the radio frequency signal can be understood as: the radio frequency signal enters through the first antenna Ant0 and flows to the 3P3T switch via path 5; after switching to path 1, the radio frequency signal flows through The first filter unit 610 is connected to the antenna port ANT of the radio frequency PA Mid device 200; the radio frequency signal is switched to the receiving circuit 210 through the first filter 223 to the switch circuit 220, and then to the receiving port RXOUT through the low noise amplifier 231; the radio frequency signal is from the receiving port RXOUT It flows through the radio frequency trace 1 to the MHB2 port of the radio frequency LNA device 300, enters through the MHB2 port, flows through the radio frequency LNA device 300UT1 port and outputs, and flows through the radio frequency trace 2 to the radio frequency transceiver 400. Combined with the theoretical calculation data in Table 7, the sensitivity index of the RX four-channel combination shown in Table 11 is obtained. The insertion loss of the antenna 100 to the radio frequency PA Mid device 200 in Table 7 can be understood as the passive loss of the antenna 100 socket, the first filter unit 610, the first switch module 510, and the radio frequency wiring between adjacent devices.

表11 本申请5G NR N41灵敏度测试数据Table 11 5G NR N41 sensitivity test data of this application

信道channel	PRXPRX	DRXDRX	PRX MIMOPRX MIMO	DRX MIMODRX MIMO	四通道合路Four-channel combination
509202509202	-85.9-85.9	-85.5-85.5	-85.9-85.9	-86-86	-90-90
518598518598	-85.9-85.9	-85.5-85.5	-85.9-85.9	-86-86	-90-90
528000528000	-85.9-85.9	-85-85	-85.9-85.9	-85-85	-89-89

表11与表5中的数据相比，四通道合路的灵敏度指标整体提升2dB，能够通过泰尔协议的测试用例，解决了RX灵敏度差的问题。Compared with the data in Table 5, the overall sensitivity index of the four-channel combination is improved by 2dB in Table 11, which can pass the test case of the Thiel protocol and solve the problem of poor RX sensitivity.

在其中一个实施例中，可以将前述实施例中射频PA Mid器件200内的第一滤波器223从开关电路220的后端前移到接收电路230和发射电路210中。具体的，如图8所示，发射电路210还包括第二滤波器213，分别与所述功率放大器211的输出端、开关电路220连接；所述接收电路230还包括第三滤波器233，分别与所述低噪声放大器231的输出端、接收端口RXOUT连接。第二滤波器213，与功率放大器211的输出端连接，用于对所述射频信号进行滤波处理。In one of the embodiments, the first filter 223 in the radio frequency PA Mid device 200 in the foregoing embodiment may be moved forward from the rear end of the switch circuit 220 to the receiving circuit 230 and the transmitting circuit 210. Specifically, as shown in FIG. 8, the transmitting circuit 210 further includes a second filter 213, which is respectively connected to the output terminal of the power amplifier 211 and the switch circuit 220; the receiving circuit 230 further includes a third filter 233, respectively It is connected to the output terminal of the low noise amplifier 231 and the receiving port RXOUT. The second filter 213 is connected to the output end of the power amplifier 211 and is used for filtering the radio frequency signal.

第三滤波器233与低噪声放大器231的输出端连接，用于将功率放大器211放大后的射频信号进行滤波处理，第二滤波器213、第三滤波器233仅允许预设频段(例如，N41频段)的射频信号通过。The third filter 233 is connected to the output end of the low noise amplifier 231 for filtering the radio frequency signal amplified by the power amplifier 211. The second filter 213 and the third filter 233 only allow a preset frequency band (for example, N41 Frequency band) the radio frequency signal passes through.

在其中一个实施例中，第二滤波器213、第三滤波器233可以为带通滤波器。其中，该带通滤波器的***损耗约为2.5dB。In one of the embodiments, the second filter 213 and the third filter 233 may be band-pass filters. Among them, the insertion loss of the band-pass filter is about 2.5dB.

如图9所示，射频收发装置9包括了如图8所示的射频PA Mid器件200。如图9所示的射频收发装置10也可以支持通过探测参考信号SRS在发射天线100间轮发发送4端 口SRS的功能，还可以支持所述4根天线100同时接收数据的功能。As shown in FIG. 9, the radio frequency transceiver device 9 includes the radio frequency PA Mid device 200 shown in FIG. 8. The radio frequency transceiver 10 shown in FIG. 9 may also support the function of transmitting 4-port SRS in turn between the transmitting antennas 100 through the sounding reference signal SRS, and may also support the function of simultaneously receiving data by the four antennas 100.

以PRX接收链路为例，射频信号的流向可以理解为：射频信号通过第一天线ANT0进入，经路径5流向3P3T开关；切换至路径1后，射频信号流经第一滤波单元610至射频PA Mid器件200的天线端口ANT；射频信号经开关电路220切换至接收电路220，经低噪声放大器231、第一滤波器233至接收端口RXOUT；射频信号从接收端口RXOUT流经射频走线1到射频LNA器件300的MHB2端口，经MHB2端口进入，流经射频LNA器件300输出，流经射频走线2至射频收发器400。Taking the PRX receiving link as an example, the flow of the radio frequency signal can be understood as: the radio frequency signal enters through the first antenna ANT0 and flows to the 3P3T switch via path 5; after switching to path 1, the radio frequency signal flows through the first filter unit 610 to the radio frequency PA Antenna port ANT of Mid device 200; RF signal is switched to receiving circuit 220 via switch circuit 220, and then to receiving port RXOUT via low noise amplifier 231 and first filter 233; RF signal flows from receiving port RXOUT through RF trace 1 to RF The MHB2 port of the LNA device 300 enters through the MHB2 port, flows through the radio frequency LNA device 300 to output, and flows through the radio frequency trace 2 to the radio frequency transceiver 400.

根据噪声系数级联公式(2)，可以对应获取本实施例中射频收发装置10中接收链路的级联噪声系数：According to the noise figure cascade formula (2), the cascaded noise figure of the receiving link in the radio frequency transceiver device 10 in this embodiment can be obtained correspondingly:

式中，传统方案中接收链路的级联噪声系数与本实施例中接收链路的级联噪声系数公式中的第一项相同，其中，级联公式的第一项可以理解为天线100到射频PA Mid器件200的***损耗，级联公式的第二项，传统方案的公式中直接叠加了射频PA Mid器件内部的***损耗3.5dB，而本实施例中增加了N41射频PA Mid器件200的开关电路220的***损耗0.5dB。级联公式的第三项，传统方案的公式中直接叠加了射频走线1的损耗值，高达2.5dB，而本实例中增加了射频PA Mid器件200中低噪声放大器231的噪声系数为1.2dB；级联公式的第四项，传统方案的公式中直接叠加了射频LNA器件300的噪声系数为1.2dB；而本实施例中增加了

约为0.1dB；级联公式的第五项和第六项，传统方案引入的噪声为0.1dB，本申请引入的噪声为1.4dB，其中，由于本实施例中，第二滤波器213的增益为-2.5dB，射频走线1的增益低为-2.5dB，会使引入的噪声系数较传统方案偏大。 In the formula, the cascaded noise figure of the receiving link in the traditional scheme is the same as the first term in the cascaded noise figure formula of the receiving link in this embodiment, where the first term of the cascading formula can be understood as the antenna 100 to 100 The insertion loss of the radio frequency PA Mid device 200 is the second term of the cascading formula. The formula of the traditional scheme directly superimposes the insertion loss of the radio frequency PA Mid device of 3.5 dB. In this embodiment, the N41 radio frequency PA Mid device 200 is added. The insertion loss of the switching circuit 220 is 0.5 dB. The third term of the cascading formula, the formula of the traditional scheme directly superimposes the loss value of the RF trace 1, which is as high as 2.5dB. In this example, the noise figure of the low noise amplifier 231 in the RF PA Mid device 200 is 1.2dB. ; The fourth item of the cascade formula, the formula of the traditional scheme directly superimposes the noise figure of the radio frequency LNA device 300 to be 1.2dB; and this embodiment adds

About 0.1dB; in the fifth and sixth terms of the cascade formula, the noise introduced by the traditional scheme is 0.1dB, and the noise introduced by this application is 1.4dB. Among them, due to the gain of the second filter 213 in this embodiment, It is -2.5dB, and the gain of RF trace 1 is -2.5dB, which will cause the introduced noise figure to be larger than that of the traditional scheme.

通过以上级联公式的计算和分析，可以得出以下结论：射频收发装置10接收链路中的噪声系数主要由级联公式的前四项决定，当在射频PA Mid器件200中的接收电路230中设置低噪声放大器231，并将第二滤波器213和第三滤波器233分别前置到发射电路210和接收电路230中后，就会降低该射频收发装置10的噪声系数，可以使得该射频收发装置10的接收链路的噪声系数降低3.8dB。Through the calculation and analysis of the above cascading formula, the following conclusions can be drawn: the noise figure in the receiving link of the radio frequency transceiver 10 is mainly determined by the first four items of the cascading formula. When the receiving circuit 230 in the radio frequency PA Mid device 200 After the low noise amplifier 231 is set in the middle, and the second filter 213 and the third filter 233 are respectively pre-installed in the transmitting circuit 210 and the receiving circuit 230, the noise figure of the radio frequency transceiver 10 will be reduced, which can make the radio frequency The noise figure of the receiving link of the transceiver 10 is reduced by 3.8 dB.

基于本实施例提供的射频PA Mid器件200以及各级联部分的数据，可以对本实施例中提供的射频收发装置10的接收链路进行灵敏度预算分析，如表12所示，得出的灵敏度理论数值为-87.7dBm/100MHz，与传统方案的-83.9dBm/100MHz相比，性能提升了3.8dB。Based on the radio frequency PA Mid device 200 provided in this embodiment and the data of each level of the connection part, the sensitivity budget analysis of the receiving link of the radio frequency transceiver device 10 provided in this embodiment can be performed, as shown in Table 12, the resulting sensitivity theory The value is -87.7dBm/100MHz. Compared with the traditional scheme of -83.9dBm/100MHz, the performance is improved by 3.8dB.

表12 射频收发装置10接收链路预算Table 12 RF transceiver device 10 receiving link budget

以表7中的DRX和DRX MIMO测试数据为基础，结合理论计算的PRX和PRX MIMO数据，得出如表13所示的RX四通道合路的灵敏度指标。Based on the DRX and DRX MIMO test data in Table 7, combined with the theoretically calculated PRX and PRX MIMO data, the sensitivity index of the RX four-channel combination shown in Table 13 is obtained.

表13 扩展方案5G NR N41灵敏度测试数据Table 13 Sensitivity test data of 5G NR N41 for the extended solution

信道channel	PRXPRX	DRXDRX	PRX MIMOPRX MIMO	DRX MIMODRX MIMO	四通道合路Four-channel combination
509202509202	-87.7-87.7	-85.5-85.5	-87.7-87.7	-86-86	-92-92
518598518598	-87.7-87.7	-85.5-85.5	-87.7-87.7	-86-86	-92-92
528000528000	-87.7-87.7	-85-85	-87.7-87.7	-85-85	-91-91

与表7中的数据相比，四通道合路的灵敏度指标整体提升4dB，通过数据对比分析可以得出，本实施例提供的射频PA Mid器件200可以大幅度提升灵敏度指标。Compared with the data in Table 7, the overall sensitivity index of the four-channel combination is increased by 4dB. Through data comparison and analysis, it can be concluded that the radio frequency PA Mid device 200 provided in this embodiment can greatly improve the sensitivity index.

在本实施例中，第三滤波器233可以设置在低噪声放大器231的输入端，也可以设置在低噪声放大器231的输出端。当第三滤波器233设置在低噪声放大器231的输出端时，可以有效滤波低噪声放大器231产生的非线性杂散波，例如，二次谐波和三次谐波等，进而可以有效提升该射频收发装置10的性能。In this embodiment, the third filter 233 may be set at the input end of the low noise amplifier 231, or may be set at the output end of the low noise amplifier 231. When the third filter 233 is arranged at the output end of the low noise amplifier 231, it can effectively filter the nonlinear spurious waves generated by the low noise amplifier 231, such as the second harmonic and the third harmonic, etc., thereby effectively improving the radio frequency. The performance of the transceiver 10.

本申请实施例还提供一种通信设备，该通信设备上设置有上述任一实施例中的射频收发装置10，通过在通信设备上设置该射频收发装置10，可以提升通信设备的接收射频信号的灵敏度，继而提升通信设备的无线通信性能。An embodiment of the present application also provides a communication device. The communication device is provided with the radio frequency transceiver 10 in any of the above embodiments. By setting the radio frequency transceiver 10 on the communication device, the communication equipment’s ability to receive radio frequency signals can be improved. Sensitivity, which in turn improves the wireless communication performance of the communication device.

以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation manners of the present application, and the descriptions are relatively specific and detailed, but they should not be understood as limiting the scope of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can be made, and these all fall within the protection scope of this application. Therefore, the scope of protection of the patent of this application shall be subject to the appended claims.

Claims (19)

1. 一种射频PA Mid器件，被配置有用于连接射频收发器的发射端口、用于连接射频LNA器件的接收端口和用于连接天线的天线端口，所述射频PA Mid器件包括：A radio frequency PA Mid device is configured with a transmitting port used to connect to a radio frequency transceiver, a receiving port used to connect to a radio frequency LNA device, and an antenna port used to connect to an antenna. The radio frequency PA Mid device includes:

   发射电路，所述发射电路包括功率放大器，所述功率放大器的输入端与所述发射端口连接，用于接收所述射频收发器发出的射频信号，并对所述射频信号进行功率放大；A transmitting circuit, the transmitting circuit includes a power amplifier, the input end of the power amplifier is connected to the transmitting port, and is used for receiving the radio frequency signal sent by the radio frequency transceiver and power amplifying the radio frequency signal;

   接收电路，所述接收电路包括低噪声放大器，所述低噪声放大器的输出端连接至所述接收端口，用于对接收的所述射频信号进行放大处理；A receiving circuit, the receiving circuit includes a low noise amplifier, and an output end of the low noise amplifier is connected to the receiving port for amplifying the received radio frequency signal;

   第一控制单元，与所述低噪声放大器的控制端连接，用于调节所述低噪声放大器的增益系数以降低所述接收链路的级联噪声系数；The first control unit is connected to the control terminal of the low noise amplifier, and is used to adjust the gain coefficient of the low noise amplifier to reduce the cascaded noise figure of the receiving link;

   开关电路，所述开关电路分别与所述功率放大器的输出端及所述低噪声放大器的输入端、天线端口连接，用于选择导通所述接收电路所在的接收链路或所述发射电路所在的发射链路。A switch circuit, which is connected to the output terminal of the power amplifier, the input terminal of the low noise amplifier, and the antenna port, respectively, and is used to select and turn on the receiving link where the receiving circuit is located or where the transmitting circuit is located Transmission link.
2. 根据权利要求1所述的射频PA Mid器件，其特征在于，所述射频PA Mid器件还包括：The radio frequency PA Mid device according to claim 1, wherein the radio frequency PA Mid device further comprises:

   第一滤波器，分别与所述开关电路、天线端口连接，用于对接收的所述射频信号进行滤波处理。The first filter is respectively connected to the switch circuit and the antenna port, and is used for filtering the received radio frequency signal.
3. 根据权利要求1所述的射频PA Mid器件，其特征在于，所述发射电路还包括：The radio frequency PA Mid device according to claim 1, wherein the transmitting circuit further comprises:

   第二滤波器，分别与所述功率放大器的输出端、开关电路的第一端连接，用于对所述发射链路传输的所述射频信号进行滤波处理；The second filter is respectively connected to the output end of the power amplifier and the first end of the switch circuit, and is used for filtering the radio frequency signal transmitted by the transmission link;

   所述接收电路还包括：The receiving circuit further includes:

   第三滤波器，分别与所述低噪声放大器的输出端、接收端口连接，用于对所述接收链路传输的所述射频信号进行滤波处理，并将滤波处理后的所述射频信号经所述接收端口输出。The third filter is respectively connected to the output terminal and the receiving port of the low noise amplifier, and is used for filtering the radio frequency signal transmitted by the receiving link, and passing the filtered radio frequency signal through the radio frequency signal. The output of the receiving port.
4. 根据权利要求1所述的射频PA Mid器件，其特征在于，所述射频PA Mid器件被配置有耦合输出端口，所述射频PA Mid器件还包括：The radio frequency PA Mid device according to claim 1, wherein the radio frequency PA Mid device is configured with a coupling output port, and the radio frequency PA Mid device further comprises:

   耦合单元，包括输入端、输出端、第一耦合端和第二耦合端，其中，所述输入端与所述开关电路的第二端连接，所述输出端与所述天线端口连接，用于对所述射频信号进行耦合以输出前向耦合信号和后向耦合信号；The coupling unit includes an input end, an output end, a first coupling end, and a second coupling end, wherein the input end is connected to the second end of the switch circuit, and the output end is connected to the antenna port for Coupling the radio frequency signal to output a forward coupling signal and a backward coupling signal;

   耦合开关，分别与所述第一耦合端、第二耦合端、耦合输出端连接，用于选择输出所述前向耦合信号或所述后向耦合信号。The coupling switch is respectively connected to the first coupling end, the second coupling end, and the coupling output end, and is used to select and output the forward coupling signal or the backward coupling signal.
5. 根据权利要求4所述的射频PA Mid器件，其特征在于，所述射频PA Mid器件被配置有用于接收外部耦合信号的耦合输入端口，所述射频PA Mid器件还包括：The radio frequency PA Mid device according to claim 4, wherein the radio frequency PA Mid device is configured with a coupling input port for receiving external coupling signals, and the radio frequency PA Mid device further comprises:

   切换开关，分别与所述耦合开关、耦合输入端口、耦合输入端口连接；用于选择导通所述耦合信号的第一耦合通道和导通所述外部耦合信号的第二耦合通道。The switch is connected to the coupling switch, the coupling input port, and the coupling input port respectively; and is used to select the first coupling channel for conducting the coupling signal and the second coupling channel for conducting the external coupling signal.
6. 根据权利要求2所述的射频PA Mid器件，其特征在于，所述第一滤波器为带通滤波器。The radio frequency PA Mid device according to claim 2, wherein the first filter is a band pass filter.
7. 根据权利要求3所述的射频PA Mid器件，其特征在于，所述第二滤波器、第三滤波器均为带通滤波器。The radio frequency PA Mid device according to claim 3, wherein the second filter and the third filter are both band-pass filters.
8. 根据权利要求1所述的射频PA Mid器件，其特征在于，所述射频PA Mid器件还包括：The radio frequency PA Mid device according to claim 1, wherein the radio frequency PA Mid device further comprises:

   第二控制单元，分别与所述开关电路、功率放大器连接，用于控制所述开关电路的通断状态，并控制所述功率放大器的工作状态。The second control unit is respectively connected with the switch circuit and the power amplifier, and is used to control the on-off state of the switch circuit and control the working state of the power amplifier.
9. 根据权利要求1-8任一项所述的射频PA Mid器件，其特征在于，所述发射电路、开关电路、接收电路集成在同一封装芯片中。The radio frequency PA Mid device according to any one of claims 1-8, wherein the transmitting circuit, the switching circuit, and the receiving circuit are integrated in the same package chip.
10. 一种射频收发装置，包括：A radio frequency transceiver, including:

    如权利要求1-9任一项所述的射频PA Mid器件，The radio frequency PA Mid device according to any one of claims 1-9,

    天线，与所述天线端口连接，用于收发射频信号；An antenna, connected to the antenna port, for sending and receiving radio frequency signals;

    射频LNA器件，与所述接收端口连接，用于对所述射频PA Mid器件输出的射频信号进行放大处理；A radio frequency LNA device, connected to the receiving port, and used to amplify the radio frequency signal output by the radio frequency PA Mid device;

    射频收发器，分别与所述射频LNA器件、发射端口连接，用于向所述射频PA Mid器件发送所述射频信号，还用于接收经所述射频LNA器件放大处理的射频信号以实现对所述射频信号的收发控制。The radio frequency transceiver is respectively connected to the radio frequency LNA device and the transmitting port, and is used to send the radio frequency signal to the radio frequency PA Mid device, and is also used to receive the radio frequency signal amplified and processed by the radio frequency LNA device to realize the communication The transceiver control of the radio frequency signal.
11. 根据权利要求10所述的射频收发装置，其特征在于，所述射频PA Mid器件的数量为两个，分别为第一射频PA Mid器件、第二射频PA Mid器件；所述射频LNA器件的数量为两个，分别为第一射频LNA器件、第二射频LNA器件；所述天线的数量为四个，分别为第一天线、第二天线、第三天线和第四天线；所述射频收发装置还包括第一开关模块和第二开关模块，其中，The radio frequency transceiver device according to claim 10, wherein the number of radio frequency PA Mid devices is two, which are respectively a first radio frequency PA Mid device and a second radio frequency PA Mid device; the number of radio frequency LNA devices There are two, respectively, the first radio frequency LNA device and the second radio frequency LNA device; the number of the antennas is four, respectively, the first antenna, the second antenna, the third antenna, and the fourth antenna; the radio frequency transceiving device It also includes a first switch module and a second switch module, wherein,

    所述第一射频PA Mid器件分别与射频收发器、第一射频LNA器件、第一开关模块的第一端连接，所述第一开关模块的第二端分别与所述第一天线、第二天线、第二开关模块的第一端连接，所述第一开关模块的第一端还与所述第二射频LNA器件连接；The first radio frequency PA Mid device is respectively connected to the first end of the radio frequency transceiver, the first radio frequency LNA device, and the first switch module, and the second end of the first switch module is respectively connected to the first antenna and the second end of the first switch module. The antenna is connected to the first end of the second switch module, and the first end of the first switch module is also connected to the second radio frequency LNA device;

    所述第二射频PA Mid器件分别与射频收发器、第二射频LNA器件、第二开关模块的第一端连接，所述第三天线、第四天线分别与所述第二开关模块的第二端连接，所述第二开关模块的第一端还与所述第二射频LNA器件连接以支持四天线的1T4R和2T4R功能。The second radio frequency PA Mid device is respectively connected to the first end of the radio frequency transceiver, the second radio frequency LNA device, and the second switch module, and the third antenna and the fourth antenna are respectively connected to the second end of the second switch module. The first end of the second switch module is also connected to the second radio frequency LNA device to support the four-antenna 1T4R and 2T4R functions.
12. 根据权利要求11所述的射频收发装置，其特征在于，所述第一开关模块的一个第一端与所述第一射频PA Mid器件连接，所述第一开关模块的另一第一端与所述第二射频LNA器件连接，所述第一开关模块的一第二端与所述第一天线连接，所述第一开关模块的另一第二端与所述第二开关模块的一第一端连接，所述第一开关模块的又一第二端与所述第二天线连接；The radio frequency transceiver device according to claim 11, wherein a first end of the first switch module is connected to the first radio frequency PA Mid device, and the other first end of the first switch module is connected to The second radio frequency LNA device is connected, a second end of the first switch module is connected to the first antenna, and the other second end of the first switch module is connected to a first end of the second switch module. One end is connected, and another second end of the first switch module is connected to the second antenna;

    所述第二开关模块的另一第一端与所述第一射频PA Mid器件连接，所述第二开关模块的又一第一端与所述第二射频PA Mid器件连接，所述第二开关模块的一第二端与所述第三天线连接，所述第二开关模块的另一第二端与所述第四天线连接。The other first end of the second switch module is connected to the first radio frequency PA Mid device, and the other first end of the second switch module is connected to the second radio frequency PA Mid device, and the second A second end of the switch module is connected to the third antenna, and the other second end of the second switch module is connected to the fourth antenna.
13. 根据权利要求12所述的射频收发装置，其特征在于，所述第一开关模块和所述第二开关模块均为射频3P3T开关。The radio frequency transceiver device of claim 12, wherein the first switch module and the second switch module are both radio frequency 3P3T switches.
14. 根据权利要求11所述的射频收发装置，其特征在于，所述射频收发装置还包括：The radio frequency transceiving device according to claim 11, wherein the radio frequency transceiving device further comprises:

    第一滤波单元，分别与所述第一射频PA Mid器件的天线端口、所述第一开关模块的第一端连接，用于对所述第一天线接收的射频信号进行滤波处理；The first filtering unit is respectively connected to the antenna port of the first radio frequency PA Mid device and the first end of the first switch module, and is used for filtering the radio frequency signal received by the first antenna;

    第二滤波单元，分别与所述第二射频PA Mid器件的天线端口、所述第二开关模块的第一端连接，用于对所述第三天线接收的射频信号进行滤波处理。The second filtering unit is respectively connected to the antenna port of the second radio frequency PA Mid device and the first end of the second switch module, and is used for filtering the radio frequency signal received by the third antenna.
15. 根据权利要求14所述的射频收发装置，其特征在于，所述射频收发装置还包括：The radio frequency transceiving device according to claim 14, wherein the radio frequency transceiving device further comprises:

    第三滤波单元，分别与所述第一射频LNA器件、所述第一开关模块的第一端连接，用于对所述第二天线接收的射频信号进行滤波处理；The third filtering unit is respectively connected to the first end of the first radio frequency LNA device and the first switch module, and is used for filtering the radio frequency signal received by the second antenna;

    第四滤波单元，分别与所述第二射频LNA器件、所述第二开关模块的第一端连接，用于对所述第四天线接收的射频信号进行滤波处理。The fourth filtering unit is respectively connected to the first end of the second radio frequency LNA device and the second switch module, and is used for filtering the radio frequency signal received by the fourth antenna.
16. 根据权利要求14所述的射频收发装置，其特征在于，所述第一滤波单元和所述第二滤波单元均包括低通滤波器。The radio frequency transceiver device according to claim 14, wherein the first filter unit and the second filter unit both comprise a low-pass filter.
17. 根据权利要求15所述的射频收发装置，其特征在于，所述第三滤波单元和所述第四滤波单元均包括低通滤波器。The radio frequency transceiver device according to claim 15, wherein the third filter unit and the fourth filter unit both comprise a low-pass filter.
18. 根据权利要求10所述的射频收发装置，其特征在于，所述射频信号包括N41频段的5G信号。The radio frequency transceiver device of claim 10, wherein the radio frequency signal comprises a 5G signal in the N41 frequency band.
19. 一种通信设备，包括如权利要求10-18任一项所述的射频收发装置。A communication device, comprising the radio frequency transceiver device according to any one of claims 10-18.

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