CN117833946A

CN117833946A - PA Mid device, LFEM device, radio frequency system and communication equipment

Info

Publication number: CN117833946A
Application number: CN202311873812.2A
Authority: CN
Inventors: 王国龙
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2023-12-29
Filing date: 2023-12-29
Publication date: 2024-04-05

Abstract

The application provides a PA Mid device, an LFEM device, a radio frequency system and communication equipment, wherein the PA Mid device comprises a radio frequency transmitting port and a first radio frequency receiving port which are used for being electrically connected with a radio frequency transceiver, a first electric connection port which is used for being electrically connected with an external filter component, and a first antenna port which is used for being electrically connected with an antenna component; the transmitting module of the PA Mid device is electrically connected with the radio frequency transmitting port and the first electric connecting port of the first part, the first switch circuit is electrically connected with the first antenna port and the first electric connecting port of the second part, and the first receiving module is electrically connected with the first radio frequency receiving port and the first electric connecting port of the third part. Based on the above, the production difficulty of the PA Mid device is greatly reduced.

Description

PA Mid device, LFEM device, radio frequency system and communication equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a PA Mid device, an LFEM device, a radio frequency system, and a communications device.

Background

The radio frequency system is used for realizing the transmission and the reception of the wireless signals and is used for carrying out the processes of power amplification, filtering, switching and the like on the radio frequency signals.

At present, the production difficulty of the related art radio frequency system and the related PA Mid device and LFEM device is relatively high, so that a scheme for providing the radio frequency system, the PA Mid device and the LFEM device with relatively low production difficulty is needed.

Disclosure of Invention

The application provides a PA Mid device, an LFEM device, a radio frequency system and communication equipment, wherein the production difficulty of the PA Mid device and the LFEM device is low.

In a first aspect, the present application provides a radio PA Mid device, including a radio frequency transmitting port and a first radio frequency receiving port for electrically connecting a radio frequency transceiver, a first electrical connection port for electrically connecting an external filter assembly, and a first antenna port for electrically connecting to an antenna assembly; the PA Mid device further includes:

the transmitting module is electrically connected with the radio frequency transmitting port and the first electric connecting port of the first part, and is used for amplifying radio frequency transmitting signals, and the first electric connecting port of the first part is also used for electrically connecting the first end of the external filter assembly;

the first switch circuit is electrically connected with the first antenna port and the first electric connection port of the second part, and the first electric connection port of the second part is also used for electrically connecting the second end of the external filter component; and

The first receiving module is electrically connected with the first radio frequency receiving port and the first electric connection port of the third part, the first receiving module is used for amplifying radio frequency receiving signals, and the first electric connection port of the third part is used for electrically connecting the third end of the external filter component.

In a second aspect, the present application further provides an LFEM device, including a second rf receiving port for being electrically connected to an rf transceiver, a second electrical connection port for being electrically connected to an external filter assembly, and a third antenna port for being electrically connected to an antenna assembly; the LFEM device further comprises:

the second receiving module is electrically connected with the second radio frequency receiving port and a second electric connection port of the first part, and is used for amplifying radio frequency receiving signals, and the second electric connection port of the first part is also used for being electrically connected with one end of the external filter component; and

The second switch circuit is electrically connected with the third antenna port and the second electric connection port of the second part, the second electric connection port of the second part is also used for electrically connecting the other end of the external filter assembly, and the second switch circuit is used for realizing electric connection with the second receiving module through the external filter assembly.

In a third aspect, the present application further provides a radio frequency system, including an external filtering component and an antenna component; the radio frequency system further comprises:

the PA Mid device is electrically connected with the external filter component and the antenna component respectively; and/or the number of the groups of groups,

and the LFEM device is electrically connected with the external filter component and the antenna component respectively.

In a fourth aspect, the present application also provides a communication device comprising a radio frequency system as described above.

According to the PA Mid device, the LFEM device, the radio frequency system and the communication equipment, the transmitting module and the first receiving module of the PA Mid device are electrically connected with the first switch circuit through the external filter assembly, the PA Mid device can amplify a radio frequency transmitting signal, and the performance of the radio frequency signal can be guaranteed; the second receiving module of the LFEM device is electrically connected with the second switching circuit through the external filtering component, and the EFM device can amplify the radio frequency receiving signals, so that the PA Mid device and the LFEM device have better radio frequency signal processing performance. Meanwhile, as the filter component has a technical barrier, part manufacturers are not easy to produce filter devices with excellent performances, the PA Mid device and the LFEM device of the invention do not comprise the filter component, the external filter component is independent of the PA Mid device and the LFEM device, the production difficulty of the PA Mid device and the LFEM device is greatly reduced, and the industrial production of the PA Mid device and the LFEM device is facilitated.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the invention and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a first configuration of a communication device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a radio frequency system according to an embodiment of the present application.

Fig. 3 is a schematic diagram of a first structure of a PA Mid device according to an embodiment of the present application.

Fig. 4 is a schematic diagram of a first electrical connection of the PA Mid device shown in fig. 3.

Fig. 5 is a schematic diagram of a second electrical connection of the PA Mid device shown in fig. 3.

Fig. 6 is a schematic diagram of a third electrical connection of the PA Mid device shown in fig. 3.

Fig. 7 is a fourth electrical connection schematic of the PA Mid device shown in fig. 3.

Fig. 8 is a fifth electrical connection schematic of the PA Mid device shown in fig. 3.

Fig. 9 is a schematic diagram of a second structure of a PA Mid device according to an embodiment of the present application.

Fig. 10 is a schematic diagram of a third structure of a PA Mid device according to an embodiment of the present application.

Fig. 11 is a schematic diagram of a fourth structure of a PA Mid device according to an embodiment of the present application.

Fig. 12 is a schematic diagram of a fifth structure of a PA Mid device according to an embodiment of the present application.

Fig. 13 is a sixth structural schematic diagram of a PA Mid device according to an embodiment of the present application.

Fig. 14 is a seventh structural schematic diagram of a PA Mid device provided in an embodiment of the present application.

Fig. 15 is a schematic diagram of a first structure of an LFEM device according to an embodiment of the present application.

Fig. 16 is a schematic diagram of a first electrical connection of the LFEM device shown in fig. 15.

Fig. 17 is a schematic diagram of a second electrical connection of the LFEM device shown in fig. 15.

Fig. 18 is a schematic diagram of a second structure of an LFEM device according to an embodiment of the present application.

Fig. 19 is a schematic diagram of a third structure of an LFEM device according to an embodiment of the present application.

Fig. 20 is a schematic diagram of a fourth structure of an LFEM device according to an embodiment of the present application.

Fig. 21 is a schematic diagram of a second structure of a radio frequency system according to an embodiment of the present application.

Fig. 22 is a schematic diagram of a third structure of a radio frequency system according to an embodiment of the present application.

Fig. 23 is a schematic diagram of a fourth structure of a radio frequency system according to an embodiment of the present application.

Fig. 24 is a schematic diagram of a second configuration of a communication device according to an embodiment of the present application.

Fig. 25 is a schematic diagram of a third configuration of a communication device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to fig. 1 to 25 in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The embodiment of the application provides a power amplification Module (PA Module integrated with Duplexer, abbreviated as PA Mid device) of an integrated duplexer, a low-noise amplification radio frequency Front End Module (LNA Front-End Module, abbreviated as LFEM device), a radio frequency system and communication equipment. The PA Mid device is mainly used for transmitting and receiving radio frequency signals, and the LFEM device is mainly used for diversity receiving of radio frequency signals. Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram of a first structure of a communication device 10 provided in an embodiment of the present application, and fig. 2 is a schematic diagram of a first structure of a radio frequency system 12 provided in an embodiment of the present application, where the communication device includes a radio frequency system 12, and the radio frequency system 12 includes an external filter assembly 200, an antenna assembly 400, a radio frequency transceiver 500, and a radio frequency device 600.

The radio frequency Transceiver 500 (transmitter) is used for providing radio frequency signals or for receiving radio frequency signals. The antenna assembly 400 includes one or more antennas capable of transmitting radio frequency signals to free space or receiving electromagnetic wave signals from free space. The external filter assembly 200 is a device or module having filtering performance, for example, the external filter assembly 200 may include a duplexer, a multiplexer, a filter, and the like. The rf device 600 is configured to amplify the rf signal, and the rf device 600 is electrically connected to the external filter assembly 200, the rf transceiver 500, and the antenna assembly 400, respectively. As shown in fig. 2, the rf device 600 includes an rf port 610 electrically connected to the rf transceiver 500, an electrical connection port 620 electrically connected to the external filter assembly 200, and an antenna port 630 electrically connected to the antenna assembly 400, and the rf device 600 may further include an rf processing circuit 640 and a switch circuit 650, wherein one end of the rf processing circuit 640 is electrically connected to the rf port 610, one end of the rf processing circuit 640 is electrically connected to a portion of the electrical connection port 620, one end of the external filter assembly is electrically connected to a portion of the electrical connection port 620, the other end is electrically connected to another portion of the electrical connection port 620, one end of the switch circuit 650 is electrically connected to another portion of the electrical connection port 620, and the other end of the switch circuit 650 is electrically connected to the antenna port 630, so that the rf transceiver 500, the rf device 600, the external filter assembly 200, and the antenna assembly 400 may form an rf link.

It is understood that the radio frequency system 12 may be divided into a transmit link (TX link) and a receive link (RX link). In the TX link, the digital signal is converted into a continuous analog signal that is easy to be transmitted through the baseband chip, then the rf transceiver 500 can modulate the analog signal into an rf signal that is not easy to be interfered, then the rf device 600 of the rf system 12 and the external filter assembly 200 are used to implement processes such as power amplification, filtering, switching of the rf signal, and finally the rf signal is transmitted to the free space through the antenna. In the RX link, the antenna receives the radio frequency signal transmitted in the free space, selects the required frequency and channel through the radio frequency device 600 and the external filter assembly 200, filters and amplifies the received radio frequency signal, and finally inputs the filtered radio frequency signal into the radio frequency transceiver 500 and the modem to obtain a digital signal.

It will be appreciated that the communication device 10 may implement wireless communication functions under the influence of the radio frequency system 12. For example, the communication device 10 may transmit wireless fidelity (Wireless Fidelity, abbreviated Wi-Fi) signals, positioning signals (e.g., GPS signals, beidou signals), third Generation mobile communication technology (3 th-Generation, abbreviated 3G) signals, fourth Generation mobile communication technology (4 th-Generation, abbreviated 4G) signals, long term evolution mobile communication (Long Term Evolution, abbreviated LTE) signals, fifth Generation mobile communication technology (5 th-Generation, abbreviated 5G) signals, near field communication (Near field communication, abbreviated NFC) signals, ultra Wide Band (UWB) signals, bluetooth signals, and the like.

It is understood that the radio frequency device 600 may include at least one of the PA Mid device 100, LFEM device 300. That is, radio frequency system 12 may include one or more PA Mid devices 100, or include one or more LFEM devices 300, or include both one or more PA Mid devices 100 and one or more LFEM devices 300. PA Mid device 100 and LFEM device 300 are described below, respectively.

Referring to fig. 1 and fig. 2 in combination with fig. 3 and fig. 4, fig. 3 is a schematic structural diagram of a first type of PA Mid device 100 according to an embodiment of the present application, and fig. 4 is a schematic electrical connection diagram of the first type of PA Mid device 100 shown in fig. 3. PA Mid device 100 includes a radio frequency transmit port 111, a first radio frequency receive port 112, a first antenna port 120, a transmit module 131, a first receive module 132, a first switch circuit 140, and a first electrical connection port 150.

The radio frequency ports 610 of the previous embodiments may include a radio frequency transmit port 111 and a first radio frequency receive port 112. The rf transmitting port 111 is electrically connected to the rf transceiver 500, so as to receive the rf signal transmitted by the rf transceiver 500; the first rf receiving port 112 is also electrically connected to the rf transceiver 500 to transmit rf signals to the rf transceiver 500. The antenna port 630 of the foregoing embodiment may include the first antenna port 120, where the first antenna port 120 may be electrically connected to the antenna assembly 400 to transmit radio frequency signals to the antenna assembly 400 or to receive radio frequency signals transmitted by the antenna assembly 400. The rf processing circuit 640 in the foregoing embodiment includes a transmitting module 131 and a first receiving module 132, where one end of the transmitting module 131 is electrically connected to the rf transmitting port 111, and the other end of the transmitting module 131 is electrically connected to a first electrical connection port (e.g. the first electrical connection port 150 a) of the first portion, and the first electrical connection port 150a of the first portion is further electrically connected to the first end of the external filter assembly 200. The switch circuit 650 of the foregoing embodiment includes the first switch circuit 140, one end of the first switch circuit 140 is electrically connected to a first electrical connection port (e.g. the first electrical connection port 150 b) of a second portion, the other end of the first switch circuit 140 is electrically connected to the first antenna port 120, and the first electrical connection port 150b of the second portion is further electrically connected to the second end of the external filter component 200. Meanwhile, one end of the first receiving module 132 is electrically connected to the first rf receiving port 112, the other end of the first receiving module 132 is electrically connected to a first electrical connection port 150 (e.g., a first electrical connection port 150 c) of a third portion, and the first electrical connection port 150c of the third portion is electrically connected to a third end of the external filter assembly 200, and the first receiving module 132 can also be electrically connected to the first switch circuit 140 through the external filter assembly 200. The rf transmitting port 111, the transmitting module 131, the external filtering component 200, the first switch circuit 140, the first antenna port 120, and the antenna component 400 may form an rf transmitting path (TX link) of an rf signal. The first rf receiving port 112, the first receiving module 132, the external filter assembly 200, the first switch circuit 140, the first antenna port 120, and the antenna assembly 400 may form an rf receiving path (RX link/PRX link) for an rf signal. The transmitting module 131 is configured to amplify the rf transmitting signal, the first receiving module 132 may amplify the rf receiving signal, and the external filtering component 200 may filter and reduce noise of the rf transmitting signal and the rf receiving signal.

It will be appreciated that, as shown in fig. 3 and 4, the number of rf transmit ports 111 on the PA Mid device 100 is at least one, and the number of first rf receive ports 112 is also at least one. Generally, the PA Mid device 100 may be provided with a plurality of rf transmit ports 111 and a plurality of first rf receive ports 112, so as to be disposed in one-to-one correspondence with a plurality of rf ports of the rf transceiver 500. Similarly, the number of the first antenna ports 120 on the PA Mid device 100 is at least one, for example, the antenna assembly 400 may include two antennas, three antennas, and four antennas, and accordingly, the PA Mid device 100 may be provided with two, three, and four first antenna ports 120, where the plurality of first antenna ports 120 may correspond to the plurality of antennas one by one, and the PA Mid device 100 may select the corresponding first antenna ports 120 and antennas to transmit and receive radio frequency signals.

It will be appreciated that, as shown in fig. 3 and 4, the transmitting module 131 or the first receiving module 132 may form a plurality (two or more) of processing paths, the first switch circuit 140 may correspondingly form a plurality of selection paths, and accordingly, the external filter assembly 200 may also include a plurality of filter devices to form a plurality of filter paths. At this time, a processing path may be electrically connected to a selection path through a filtering path to form a signal path for transmitting or receiving radio frequency signals. Of course, when the PA Mid device 100 is of a relatively simple structure, the PA Mid device 100 may also form one of the signal paths described above.

It is understood that in some embodiments, the PA Mid device 100 may further include other antenna ports (e.g., the second antenna port 160), and the transmitting module 131 and the first receiving module 132 may be directly electrically connected to the second antenna port 160, so that the transmitting module 131 and the first receiving module 132 may be electrically connected to the antennas electrically connected to the second antenna port 160 without passing through the first switch circuit 140 (and/or the external filter assembly 200).

It will be appreciated that in the embodiment of the present application, as shown in fig. 3 and 4, the external filter assembly 200 may be independent of the PA Mid device 100. In other words, the external filter assembly 200 and the PA Mid device 100 are mutually independent device modules, the PA Mid device 100 does not include the external filter assembly 200, and the external filter assembly 200 is not packaged inside the PA Mid device 100, and at this time, the PA Mid device 100 has a simpler structure and is easier for industrial production.

The transmitting module 131 and the first receiving module 132 of the PA Mid device 100 in this embodiment are electrically connected with the first switch circuit 140 through the external filter component 200, the PA Mid device 100 can form a path for transmitting and receiving radio frequency signals, the PA Mid device 100 can integrate a transceiver function, the integration level of the PA Mid device 100 is higher, and the PA Mid device 100 is more beneficial to realizing a miniaturized design. Meanwhile, due to the technical barriers of the filtering component, part of manufacturers are not easy to produce the filtering device with excellent performance, the PA Mid device 100 in the embodiment of the present application includes the transmitting module 131, the first receiving module 132 and the first switch circuit 140, but does not include the external filtering component 200, and the external filtering component 200 is independent of the PA Mid device 100. In addition, when the PA Mid device 100 of the present application reserves the first electrical connection port 150 electrically connected to the external filter assembly 200, the modularized PA Mid device 100 may be electrically connected to the modularized external filter assembly 200, which is more beneficial to industrial production of the radio frequency system 12.

Referring to fig. 5, fig. 5 is a schematic diagram illustrating a second electrical connection of the PA Mid device shown in fig. 3. The rf transmitting port 111 of the PA Mid device 100 includes a first sub-transmitting port 1111, the external filter assembly 200 includes a first duplexer 211, a first end of the first duplexer 211 may be electrically connected to the first electrical connection port 150a of the first portion, a second end of the first duplexer 211 may be electrically connected to the first electrical connection port 150b of the second portion to achieve electrical connection with the first switch circuit 140, and a third end of the first duplexer 211 may be electrically connected to the first electrical connection port 150c of the third portion to achieve electrical connection with the first receiving module 132. The antenna assembly 400 may include a first antenna 400a, and the first antenna port 120 may be electrically connected to the first antenna 400 a. The transmitting module 131 of the PA Mid device 100 includes a first transmitting power amplifier 1311 and a first switching element 1312, where an input end of the first transmitting power amplifier 1311 is electrically connected to the first sub-transmitting port 1111, an output end of the first transmitting power amplifier 1311 is electrically connected to a first common end of the first switching element 1312, and a first switching end of the first switching element 1312 is electrically connected to the first electrical connection port 150a of the first portion. The first switching element 1312 may electrically connect the first common terminal to the first switching terminal, and the first sub-transmit port 1111, the first transmit power amplifier 1311, the first switching element 1312, the first duplexer 211, the first switching circuit 140, and the antenna assembly 400 (e.g., the first antenna 400 a) may form a TX link such that the first transmit power amplifier 1311 receives and amplifies the first radio frequency signal.

It is understood that the external filter assembly 200 may include a plurality of first diplexers 211, and the plurality of first diplexers 211 may filter and isolate radio frequency signals with different frequencies. At this time, the number of first switching ends of the first switching element 1312 may be equal to or greater than the number of first diplexers 211, so that one first switching end may be electrically connected with a second end of one first diplexer 211. It will be appreciated that, correspondingly, the first switch circuit 140 may also include a portion of the switch ports equal to or greater than the number of the first diplexers 211, such that one of the switch ports of the portion of the first switch circuit 140 is electrically connected to the second end of one of the first diplexers 211, for example, as shown in fig. 5, the first switch circuit 140 may include a single pole, multiple throw switch.

Referring to fig. 6, fig. 6 is a schematic diagram illustrating a third electrical connection of the PA Mid device 100 shown in fig. 3. The rf transmitting port 111 of the PA Mid device 100 further includes a second sub-transmitting port 1112, the duplexer of the external filtering assembly 200 further includes a second duplexer 212, a first end of the second duplexer 212 may be electrically connected to the first electrical connection port 150a of the first portion, a second end of the second duplexer 212 may be electrically connected to the first electrical connection port 150b of the second portion to electrically connect with the first switch circuit 140, and a third end of the second duplexer 212 may be electrically connected to the first electrical connection port 150c of the third portion to electrically connect with the first receiving module 132. The transmitting module 131 of the PA Mid device 100 further includes a second transmitting power amplifier 1313, an input end of the second transmitting power amplifier 1313 is electrically connected to the second sub-transmitting port 1112, an output end of the second transmitting power amplifier 1313 is electrically connected to the second common end of the first switching element 1312, and the first switching element 1312 further includes a second switching end, which is electrically connected to the first electrical connection port 150a of the first portion to be electrically connected to the first end of the second diplexer 212. The first switching element 1312 may also turn on the second common port and the second switching port, the second sub-transmit port 1112, the second transmit power amplifier 1313, the first switching element 1312, the second diplexer 212, the first switching circuit 140, and the antenna assembly 400 (e.g., the first antenna 400 a) to form a TX link for the second transmit power amplifier 1313 to receive and amplify the second radio frequency signal.

It is understood that the first radio frequency signal may be different from the second radio frequency signal. For example, the first radio frequency signal may be a 4G or 5G low frequency signal, and the second radio frequency signal may be a 2G low frequency signal; at this time, the first sub-transmitting port 1111 may be a 4G low frequency transmitting port or a 5G low frequency transmitting port, and the second sub-transmitting port 1112 is a 2G low frequency transmitting port; the first power amplifier can amplify 4G or 5G low-frequency signals, and the second power amplifier can amplify 2G low-frequency signals; the first diplexer 211 may handle 4G or 5G low frequency signals and the second diplexer 212 may handle 2G low frequency signals. For another example, the first rf signal may be a 4G or 5G intermediate frequency signal, the second rf signal may be a 2G high frequency signal, at this time, the first sub-transmitting port 1111 is a 4G or 5G intermediate frequency transmitting port, the second sub-transmitting port 1112 is a 2G high frequency transmitting port, the first power amplifier may amplify the 4G or 5G intermediate frequency signal, the second power amplifier may amplify the 2G high frequency transmitting port, the first duplexer 211 may perform isolation filtering on the 4G or 5G intermediate frequency signal, and the second duplexer 212 may perform isolation filtering on the 2G high frequency signal. Of course, the first rf signal and the second rf signal may be other signals, and the first power amplifier, the second power amplifier, the first duplexer 211, and the second duplexer 212 may be adaptively configured, which will not be described in detail herein.

It is understood that the external filter assembly 200 may include a plurality of second diplexers 212, and the plurality of second diplexers 212 may filter and isolate rf signals of different frequencies. At this time, the number of second switching terminals of the first switching element 1312, the number of switching ports of another portion of the first switching circuit 140, and the number of pre-matched first electrical connection ports 150 on the PA Mid device 100 may also be adaptively set, so that one second diplexer 212 may be electrically connected between one second switching terminal and one switching terminal of the first switching circuit 140.

It is understood that when the transmitting module 131 includes both the first transmitting power amplifier 1311 and the second transmitting power amplifier 1313, the first switching element 1312 may be a double-pole multi-throw switch or a multi-pole multi-throw switch, and the first switching element 1312 may adaptively set a plurality of first switching terminals and a plurality of second switching terminals according to the types and numbers of the first radio frequency signals and the second radio frequency signals processed by the PA Mid device 100. Of course, the first switching element 1312 may be a switching network or a switching array, which is not limited in the embodiment of the present application.

The transmitting module 131 of the embodiment of the present application includes a first transmitting power amplifier 1311, a second transmitting power amplifier 1313 and a first switching element 1312, and the transmitting module 131 may form more paths to transmit signals with different frequencies. In addition, when the first transmit power amplifier 1311 and the second transmit power amplifier 1313 process the 2G signal and the 4G signal (or the 5G signal), respectively, the PA Mid device 100 of the present application may implement the 4G (or 5G) function and the GSM function.

Referring to fig. 7 and 8, fig. 7 is a fourth electrical connection schematic diagram of the PA Mid device 100 shown in fig. 3, and fig. 8 is a fifth electrical connection schematic diagram of the PA Mid device shown in fig. 3. The rf transmitting port 111 of the PA Mid device 100 further includes a third sub-transmitting port 1113, the duplexer of the external filtering component 200 further includes a third duplexer 213, a first end of the third duplexer 213 may be electrically connected to the first electrical connection port 150a of the first portion, a second end of the third duplexer 213 may be electrically connected to the first electrical connection port 150b of the second portion to achieve electrical connection with the first switch circuit 140, and a third end of the third duplexer 213 may be electrically connected to the first electrical connection port 150c of the third portion to achieve electrical connection with the first receiving module 132. The transmitting module 131 of the PA Mid device 100 further includes a third transmitting power amplifier 1314 and a second switching element 1315, an input terminal of the third transmitting power amplifier 1314 is electrically connected to the third sub-transmitting port 1113, a common terminal of the second switching element 1315 is electrically connected to an output terminal of the third transmitting power amplifier 1314, and a switching terminal of the second switching element 1315 is electrically connected to the first electrical connection port 150a of the first portion to be electrically connected to the first terminal of the third duplexer 213. The second switching element 1315 is configured to turn on the common terminal and the switching terminal (of the second switching element 1315), and at this time, the third sub-transmitting port 1113, the third transmitting power amplifier 1314, the second switching element 1315, the third duplexer 213, the first switching circuit 140 and the antenna assembly 400 (e.g., the first antenna 400 a) form a TX link, so that the third transmitting power amplifier 1314 can receive and amplify a third radio frequency signal, where the third radio frequency signal is different from the first radio frequency signal and the second radio frequency signal.

It is understood that the external filter assembly 200 may include a plurality of third diplexers 213, and the plurality of third diplexers 213 may process third radio frequency signals with different frequencies. At this time, the number of switching ports of the second switching element 1315, the number of switching ports of the further portion of the first switching circuit 140 (the switching ports of the first switching circuit 140 may be divided into a first switching port group electrically connected to the first transmit power amplifier 1311, a second switching port group electrically connected to the second transmit power amplifier 1314, and a third switching port group electrically connected to the third transmit power amplifier 1314), and the number of the first electrical connection ports 150 matched on the PA Mid device 100 may also be adaptively set, so that one third duplexer 213 may be electrically connected between one switching port of the second switching element 1315 and one switching port of the first switching circuit 140.

It will be appreciated that, as shown in fig. 7, the PA Mid device 100 (or the transmitting module) may include both a first transmitting power amplifier 1311 and a third transmitting power amplifier 1314, where the two transmitting power amplifiers are independent of each other and output different radio frequency signals through matched switching elements. For example, the first radio frequency signal may be an intermediate frequency signal (e.g., a 4G or 5G intermediate frequency signal) and the second radio frequency signal may be a high frequency signal (e.g., a 4G or 5G high frequency signal). At this time, the first sub-transmitting port 1111 may be an intermediate frequency transmitting port, the first transmitting power amplifier 1311 may amplify the intermediate frequency signal, and the first duplexer 211 may perform isolation filtering on the intermediate frequency signal; the second sub-transmission port 1112 may be a high-frequency transmission port, the second transmission power amplifier 1313 may amplify the high-frequency signal, and the second duplexer 212 may perform isolation filtering on the high-frequency signal.

It is understood that PA Mid device 100 (or transmit module) may also include a first transmit power amplifier 1311, a second transmit power amplifier 1313, and a third transmit power amplifier 1314, as shown in fig. 8. At this time, the first transmit power amplifier 1311 and the second transmit power amplifier 1313 may be electrically connected to the same first switching element 1312, and the third transmit power amplifier 1314 may be electrically connected to the second switching element 1315. The first radio frequency signal may be an intermediate frequency signal (e.g. a 4G or 5G intermediate frequency signal), the second radio frequency signal may be a 2G high frequency signal, and the third radio frequency signal may be a high frequency signal (e.g. a 4G or 5G high frequency signal); at this time, the first sub-transmitting port 1111 may be an intermediate frequency transmitting port, the first transmitting power amplifier 1311 may amplify an intermediate frequency signal, and the first duplexer 211 may process the intermediate frequency signal; the second sub-transmitting port 1112 is a 2G high frequency transmitting port, the second transmitting power amplifier 1313 can amplify the 2G high frequency signal, and the second duplexer 212 can process the 2G high frequency signal; the third sub-transmission port 1113 is a high-frequency transmission port, the third transmission power amplifier 1314 may process the high-frequency signal, and the third duplexer 213 may process the high-frequency signal.

The transmitting module 131 in this embodiment at least includes a first transmitting power amplifier 1311 and a third transmitting power amplifier 1314, radio frequency links formed by the two transmitting power amplifiers are independent, and the PA Mid device 100 has small interference when receiving and transmitting the first radio frequency signal and the third radio frequency signal, so that the communication quality of the first radio frequency signal and the third radio frequency signal can be ensured.

Referring to fig. 5 to 8 again, the first rf receiving port 112 of the pa Mid device 100 includes a first sub-receiving port 1121, and the first receiving module 132 includes a first receiving power amplifier 1321 and a third switching element 1322.

The output end of the first receiving power amplifier 1321 is electrically connected to the first sub-receiving port 1121, the input end of the first receiving power amplifier 1321 is electrically connected to the common end of the third switching element 1322, the switching end of the third switching element 1322 is electrically connected to the first electrical connection port 150c of the third portion, so that the switching end of the third switching element 1322 can be electrically connected to the third end of the external filtering component 200 (e.g., at least one of the first duplexer 211, the second duplexer 212, and the third duplexer 213), the third switching element 1322 can be turned on (the third switching element 1322) and the switching end, and the first receiving sub-port 1121, the first receiving power amplifier 1321, the third switching element 1322, the external filtering component 200 (duplexer), the first switching circuit 140, and the antenna component 400 (e.g., the first antenna 400 a) can form a PRX (i.e., RX) link, so that the first receiving power amplifier 1321 receives and processes the radio frequency signal in a main receiving (PRX) mode.

It is to be understood that the third switching element 1322 may be a single-pole multi-throw switch, and the third switching element 1322 may include a plurality of switching ends to be electrically connected to the third ends of at least one type of the first duplexer 211 for processing the first rf signal, the second duplexer 212 for processing the second rf signal, and the third duplexer 213 for processing the third rf signal, so that, under the switching of the third switching element 1322, the first receiving power amplifier 1321 can switch and receive at least one of the first rf signal, the second rf signal, and the third rf signal in a main set receiving manner for amplifying. For example, the first receiving power amplifier 1321 may receive the low frequency radio frequency signal in a main set receiving manner through the third switching element 1322. The third switching element 1322 in the embodiment of the present application may be a plurality of single pole single throw switches, or may be a switching network, which is not limited in the embodiment of the present application.

It can be understood that in the PA Mid device 100 of the embodiment of the present application, the transmitting power amplifier is connected to the first end of the duplexer, the receiving power amplifier is connected to the third end of the duplexer, and the first end of the duplexer may be a radio frequency signal input end to transmit the transmitting signal, and the third end of the duplexer may be a radio frequency signal output end to transmit the receiving signal, because the first end and the third end of the duplexer form two paths; under the effect of the internal structure of the duplexer, two paths formed by the first end and the third end of the duplexer are mutually isolated, and the interference between the transmitting signal and the receiving signal is small, so that the PA Mid device 100 has better receiving and transmitting signal processing performance.

It is to be appreciated that the first receive power amplifier 1321 of the present application may be, but is not limited to, a low noise power amplifier (Low Noise Amplifier, LNA for short). In some embodiments, the first receiving module 132 of the present application may include a combination of a first receiving power amplifier 1321 and a third switching element 1322. Of course, in other embodiments, the first receiving module 132 may also include a plurality of first receiving power amplifiers 1321 and a plurality of third switching elements 1322 to form a plurality of combinations. The specific structure of the first receiving module 132 is not limited in the embodiment of the present application.

Referring again to fig. 5-8, the antenna assembly 400 may include a second antenna 400b, and the pa Mid device 100 may further include a second antenna port 160, where the second antenna port 160 may be electrically connected to the second antenna 400 b. The first radio frequency receive port 112 may also include a second sub-receive port 1122. The first receiving module 132 of the PA Mid device 100 may further include a second receiving power amplifier 1323 and a fourth switching element 1324.

The output end of the second receiving power amplifier 1323 is electrically connected to the second sub-receiving port 1122, the input end of the second receiving power amplifier 1323 is electrically connected to the common end of the fourth switching element 1324, and the switching end of the fourth switching element 1324 is electrically connected to the second antenna port 160 to achieve electrical connection with the second antenna 400 b. The fourth switching element 1324 is configured to turn on the Input terminal and the switching terminal, and the second sub-receiving port 1122, the second receiving power amplifier 1323, the fourth switching element 1324, and the second antenna 400b may form a main set receiving link of Multiple-Input Multiple-Output (MIMO), so that the second receiving power amplifier 1323 receives the radio frequency signal in a manner of MIMO main set reception (MIMO PRX) and performs a large processing on the radio frequency received signal.

It is to be appreciated that fourth switching element 1324 can be a single pole, multi-throw switch, a plurality of single pole, single throw switches, a switching network, or the like. The fourth switching element 1324 may include a plurality of switching ends, each of which may form a transmission path with the second antenna 400b to transmit a radio frequency signal of a certain frequency band, and the second receiving power amplifier 1323 may process a radio frequency signal of any frequency, for example, the received signals of the first radio frequency signal, the second radio frequency signal, and the third radio frequency signal in the foregoing embodiments, under the switching of the fourth switching element 1324.

It is appreciated that the number of second sub-receiving ports 1122 on the PA Mid device 100 is equal to or less than the number of switching terminals of the fourth switching element 1324, for example, one second sub-receiving port 1122 may be provided on the PA Mid device 100 to be electrically connected with an output terminal of one second receiving power amplifier 1323.

It is appreciated that in some embodiments, the first receiving module 132 of the present application may include a combination of a second receiving power amplifier 1323 and a fourth switching element 1324. Of course, in other embodiments, the first receiving module 132 may also include a plurality of second receiving power amplifiers 1323 and a plurality of fourth switching elements 1324 to form a plurality of combinations.

It is understood that, as shown in fig. 6 and 8, when the first receiving module 132 includes the first receiving power amplifier 1321, the third switching element 1322, the second receiving power amplifier 1323, and the fourth switching element 1324 at the same time, the first receiving module 132 may further include a multi-pole multi-throw switch. For example, as shown in fig. 6, the first receiving module 132 may include a double pole double throw switch; alternatively, as shown in fig. 7 and 8, the first receiving module 132 may include a four pole, four throw switch. One common terminal of the multiple-pole multiple-throw switch is electrically connected to the first receiving power amplifier 1321, the other common terminal is electrically connected to the second receiving power amplifier 1323, and one switching terminal of the multiple-pole multiple-throw switch is electrically connected to the first receiving sub-port 1121, and the other switching terminal is electrically connected to the second receiving sub-port 1122. The multi-pole multi-throw switch is used for conducting the electrical connection between at least one common terminal and one switching terminal, so that the whole PA Mid device 100 can realize the main set reception or the MIMO main set reception of radio frequency signals, or simultaneously realize the main set reception and the MIMO main set reception of radio frequency signals.

Referring again to fig. 5 to 8, the first receiving module 132 of the pa Mid device 100 may further include a third receiving power amplifier 1325 and a fifth switching element 1326.

One switching end of the fifth switching element 1326 is electrically connected to the first electrical connection port 150c of the third portion to achieve electrical connection with a third end of a duplexer (e.g., at least one of the first duplexer 211, the second duplexer 212, and the third duplexer 213) and the other switching end of the fifth switching element 1326 is electrically connected to the second antenna port 160 to achieve electrical connection with the second antenna 400 b. The input end of the third receiving power amplifier 1325 is electrically connected to the common end of the fifth switching element 1326, and the output end of the third receiving power amplifier 1325 is electrically connected to the first rf receiving port 112 (the first rf receiving port 112 may be the first sub-receiving port 1121 and the second sub-receiving port 1122). The fifth switching element 1326 may turn on the common terminal and a switching terminal, so that the third receiving power amplifier 1325 receives a radio frequency signal in a main set receiving manner and amplifies the radio frequency received signal; the fifth switching element 1326 may also switch on the common terminal and the other switching terminal, so that the third receiving power amplifier 1325 receives the other radio frequency signal in the MIMO main set receiving manner and amplifies the other radio frequency received signal; thus, the third reception power amplifier 1325 can process the PRX signal or process the PRX signal of MIMO under the switching action of the fifth switching element 1326.

It is understood that the first receiving module 132 may include a combination of one third receiving power amplifier 1325 and one fifth switching element 1326, or may also include a plurality of third receiving power amplifiers 1325 and a plurality of fifth switching elements 1326 to form a plurality of combinations.

It can be understood that the PA Mid device 100 may include a combination formed by the third receiving power amplifier 1325 and the fifth switching element 1326, or may also include at least one combination of a combination formed by the second receiving power amplifier 1323 and the fourth switching element 1324 and a combination formed by the first receiving power amplifier 1321 and the third switching element 1322, so that the first receiving module 132 of the PA Mid device 100 in the embodiment of the present application may form a plurality of receiving paths with different functions and different receptions, thereby enriching the application scenarios of the PA Mid device 100.

In the above embodiment, the PA Mid device 100 in the embodiment of the present application includes the transmitting module 131 and the first receiving module 132, where the PA Mid device 100 integrates the transmitting and receiving functions, and the PA Mid device 100 has a higher integration level and better performance; meanwhile, the external filter assembly 200 is independent of the PA Mid device 100, so that the technical barrier difficulty is reduced, the production difficulty of the PA Mid device 100 is greatly reduced, and the large-scale production of the PA Mid device 100 is facilitated.

The PA Mid device 100 of the present application is described below as a low frequency PA Mid device (LB PA Mid device) as an example. Referring to fig. 9 to 11, fig. 9 is a schematic diagram of a second structure of a PA Mid device 100 provided in an embodiment of the present application, fig. 10 is a schematic diagram of a third structure of the PA Mid device 100 provided in an embodiment of the present application, and fig. 11 is a schematic diagram of a fourth structure of the PA Mid device 100 provided in an embodiment of the present application. The antenna assembly 400 includes a first antenna 400a and a second antenna 400b, the first antenna 400a may be a main set transmitting and main set receiving antenna and the second antenna 400b may be a main set receiving antenna of MIMO. The external filter assembly 200 includes a low frequency signal duplexer, a first end of the low frequency signal duplexer may be electrically connected to the first electrical connection port 150a of the first portion, a second end of the low frequency signal duplexer may be electrically connected to the first electrical connection port 150b of the second portion to electrically connect to the first switch circuit 140, and a third end of the low frequency signal duplexer may be electrically connected to the first electrical connection port 150c of the third portion. The first switch circuit 140 is electrically connected to the first antenna 400a through the first antenna port 120. The radio frequency transmit ports 111 comprise low frequency transmit ports and the first radio frequency receive ports 112 comprise low frequency main set radio frequency receive ports and low frequency MIMO main set radio frequency receive ports. The transmitting module 131 includes a low frequency signal power amplifier 101 and a low frequency transmitting switch 104, and the first receiving module 132 includes a low frequency main set signal receiving power amplifier 102, a low frequency MIMO main set signal receiving power amplifier 103, a first low frequency receiving switch 105 and a second low frequency receiving switch 106.

It can be understood that one end of the low-frequency signal power amplifier 101 is electrically connected to the low-frequency transmitting port, and the other end of the low-frequency signal power amplifier 101 is electrically connected to the first electrical connecting port 150a of the first portion through the low-frequency transmitting switch 104, so as to be electrically connected to the first end of the low-frequency signal duplexer. Thus, the low frequency transmit port, the low frequency signal power amplifier 101, the low frequency transmit switch 104, the low frequency signal diplexer, the first switch circuit 140, the first antenna port 120, and the antenna assembly 400, e.g., the first antenna 400a, may form an LB TX link to enable transmission of low frequency signals. The low-frequency signal power amplifier 101 may be, but is not limited to, the first transmit power amplifier 1311 of the foregoing embodiment, and the low-frequency transmit switch 104 may be, but is not limited to, the first switch element 1312 of the foregoing embodiment.

It can be understood that one end of the low-frequency main set signal receiving power amplifier 102 is electrically connected to the low-frequency main set rf receiving port, and the other end of the low-frequency main set signal receiving power amplifier 102 is electrically connected to the first electrical connecting port 150c of the third portion through the first low-frequency receiving switch 105 so as to be electrically connected to the third end of the low-frequency signal duplexer; thus, the low frequency main set radio frequency receive port, the low frequency main set signal receive power amplifier 102, the first low frequency receive switch 105, the diplexer, the first switch circuit 140, the first antenna port 120, and the antenna assembly 400, e.g., the first antenna 400a, may form an LB PRX link to enable main set reception of low frequency signals. The low-frequency main set signal receiving power amplifier 102 may be, but is not limited to, the first receiving power amplifier 1321 of the foregoing embodiment, and the first low-frequency receiving switch 105 may be, but is not limited to, the third switching element 1322 of the foregoing embodiment.

It can be appreciated that one end of the low-frequency MIMO main set signal receiving power amplifier 103 is electrically connected to the low-frequency MIMO main set radio frequency receiving port, and the other end of the low-frequency MIMO main set radio frequency receiving port can be electrically connected to the second antenna port 160 through the second low-frequency receiving switch 106 to be electrically connected to the second antenna 400b, so that the low-frequency MIMO main set radio frequency receiving port, the low-frequency MIMO main set signal receiving power amplifier 103, the second low-frequency receiving switch 106 and the antenna assembly 400, for example, the second antenna 400b can form an LB PRX MIMO link to implement MIMO main set reception of the low-frequency signal. The low frequency MIMO main set signal receiving power amplifier 103 may be, but is not limited to, the second receiving power amplifier 1323 of the foregoing embodiment, and the second low frequency receiving switch 106 may be, but is not limited to, the fourth switching element 1324 of the foregoing embodiment.

It will be appreciated that, as shown in fig. 9 and 10, the rf transmission port 111 further includes a 2G low frequency transmission port; the external filter assembly 200 further includes a 2G low frequency signal duplexer, wherein a first end of the 2G low frequency signal duplexer may be electrically connected to the first electrical connection port 150a of the first portion, a second end of the 2G low frequency signal duplexer may be electrically connected to the first electrical connection port 150b of the second portion to electrically connect with the first switch circuit 140, and a third end of the 2G low frequency signal duplexer may be electrically connected to the first electrical connection port 150c of the third portion. The transmitting module 131 further includes a 2G low frequency signal power amplifier 107, one end of the 2G low frequency signal power amplifier 107 is electrically connected to the 2G low frequency transmitting port, and the other end of the 2G low frequency signal power amplifier 107 is electrically connected to the first electrical connecting port 150a of the first portion through the low frequency transmitting switch 104 to be electrically connected to the second end of the 2G low frequency signal duplexer, so that the 2G low frequency transmitting port, the 2G low frequency signal power amplifier 107, the low frequency transmitting switch 104, the 2G low frequency signal duplexer, the first switch circuit 140 and the antenna assembly 400, for example, the first antenna 400a, can form a 2G LB TX link to realize the transmission of the 2G low frequency signal. Wherein the 2G low frequency signal diplexer may be, but is not limited to, the second transmit power amplifier 1313 of the previous embodiment and the low frequency transmit switch 104 may be, but is not limited to, the first switching element 1312 of the previous embodiment.

It is to be appreciated that in some embodiments, the 2G low frequency signal power amplifier 107 and the low frequency signal power amplifier 101 may be connected to the same low frequency transmit switch 104, and the low frequency transmit switch 104 may be, but is not limited to being, a double pole, multiple throw switch. In the present embodiment, the first switch circuit 140 may include, but is not limited to, a single pole, multiple throw switch, such that the LB signal or the 2G LB signal may be transmitted to the free space through the first antenna 400 a.

It can be appreciated that, in the embodiment of the present application, a plurality of first electrical connection ports 150 may be disposed on the PA Mid device 100, where a portion of the first electrical connection ports 150 may implement electrical connection between the low-frequency signal duplexer and the low-frequency transmit switch 104 and the first switch circuit 140, a portion of the first electrical connection ports 150 may implement electrical connection between the first low-frequency receive switch 105 and the third end of the 2G low-frequency signal duplexer and the third end of the low-frequency signal duplexer, and a portion of the first electrical connection ports 150 may implement electrical connection between the second low-frequency receive switch 106 and the second antenna 400 b. Specific structure can be seen in the accompanying drawings.

It can be appreciated that the PA Mid device 100 shown in fig. 10 reduces the number of switching branches compared to the PA Mid device 100 shown in fig. 9, resulting in a simpler structure; the PA Mid device 100 shown in fig. 11 not only reduces the number of switching branches, but also saves LB GSM PA structures (saves 2G low frequency transmit ports, 2G low frequency signal power amplifier 107, etc. structures). The PA Mid device 100 shown in fig. 9 may be applied to regions such as north america, the PA Mid device 100 shown in fig. 10 may be applied to regions such as europe, and the PA Mid device 100 shown in fig. 11 may be applied to regions such as china.

The following description will take the PA Mid device 100 of the present application as an example of a medium-high frequency PA Mid device (MHB PA Mid device 100). Referring to fig. 12 to 14, fig. 12 is a schematic view of a fifth structure of a PA Mid device 100 provided in an embodiment of the present application, fig. 13 is a schematic view of a sixth structure of the PA Mid device 100 provided in an embodiment of the present application, and fig. 14 is a schematic view of a seventh structure of the PA Mid device 100 provided in an embodiment of the present application.

The antenna assembly 400 includes a first antenna 400a and a second antenna 400b, the pa Mid device 100 further includes a second antenna port 160 for electrically connecting to the antenna assembly, the first antenna 400a may be a (medium-high-low frequency) main set transmitting and main set receiving antenna, and the second antenna 400b may be a medium-high-low frequency MIMO main set receiving antenna. The external filter assembly 200 includes an intermediate frequency signal duplexer and a high frequency signal duplexer, wherein a first end of the intermediate frequency signal duplexer and a first end of the high frequency signal duplexer can be electrically connected to the first electrical connection port 150a of the first portion, a second end of the intermediate frequency signal duplexer and a second end of the high frequency signal duplexer can be electrically connected to the first electrical connection port 150b of the second portion to electrically connect with the first switch circuit 140, and a third end of the intermediate frequency signal duplexer and a third end of the high frequency signal duplexer can be electrically connected to the first electrical connection port 150c of the third portion. The radio frequency transmitting port 111 includes an intermediate frequency transmitting port, a high frequency transmitting port, and a medium-high frequency radio frequency receiving port. The transmitting module 131 includes an intermediate frequency signal power amplifier 201, a high frequency signal power amplifier 202, an intermediate frequency transmitting switch 204, and a high frequency transmitting switch 205; the first receiving module 132 includes a medium-high frequency receiving power amplifier 203 and a changeover switch 206.

It can be understood that one end of the intermediate frequency signal power amplifier 201 is electrically connected to the intermediate frequency transmitting port, and the other end of the intermediate frequency signal power amplifier 201 is electrically connected to the first electrical connecting port 150a of the first portion through the intermediate frequency transmitting switch 204, so as to achieve electrical connection with the first end of the intermediate frequency duplexer. Thus, the intermediate frequency transmit port, the intermediate frequency signal power amplifier 201, the intermediate frequency transmit switch 204, the intermediate frequency diplexer, the first switch circuit 140, the first antenna port 120, and the antenna assembly 400, e.g., the first antenna 400a, may form an MB TX link to enable transmission of MB signals (intermediate frequency signals). The intermediate frequency signal power amplifier 201 may be, but is not limited to, the first transmit power amplifier 1311 of the foregoing embodiment, and the intermediate frequency transmit switch 204 may be, but is not limited to, the first switch element 1312 of the foregoing embodiment.

It can be appreciated that one end of the high frequency signal power amplifier 202 is electrically connected to the high frequency transmitting port, and the other end of the high frequency signal power amplifier 202 is electrically connected to the first electrical connecting port 150a of the first portion through the high frequency transmitting switch 205, so as to achieve electrical connection with the first end of the high frequency duplexer. Thus, the high frequency transmission port, the high frequency signal power amplifier 202, the high frequency transmission switch 205, the high frequency duplexer, the first switch circuit 140, the first antenna port 120, and the antenna assembly 400 such as the first antenna 400a may form an HB TX link to achieve transmission of HB signals (high frequency signals). The high-frequency signal power amplifier 202 may be, but is not limited to, the third transmit power amplifier 1314 of the foregoing embodiment, and the high-frequency transmit switch 205 may be, but is not limited to, the second switching element 1315 of the foregoing embodiment.

It can be appreciated that one end of the mid-high frequency receiving power amplifier 203 is electrically connected to the mid-high frequency radio frequency receiving port, one end of the mid-high frequency receiving power amplifier 203 is electrically connected to the first electrical connection port 150c of the third portion through the switch 206 to electrically connect to the third end of the if duplexer and the third end of the hf duplexer, and/or one end of the mid-high frequency receiving power amplifier 203 is electrically connected to the second antenna port 160 through the switch 206 to electrically connect to the second antenna 400 b. One end of the intermediate-high frequency receiving power amplifier 203 is electrically connected to the third end of the intermediate-frequency duplexer through the switch 206, and at this time, the intermediate-high frequency receiving port, the intermediate-high frequency receiving power amplifier 203, the switch 206, the intermediate-frequency duplexer, the first switch circuit 140, the first antenna port 120 and the first antenna 400a may form an MB PRX link, so as to implement main set receiving of intermediate-frequency signals. One end of the mid-high frequency receiving power amplifier 203 is electrically connected to the third end of the high frequency duplexer through the switch 206, and at this time, the mid-high frequency receiving port, the mid-high frequency receiving power amplifier 203, the switch 206, the high frequency duplexer, the first switch circuit 140, the first antenna port 120 and the first antenna 400a may form an HB PRX link to implement main set receiving of the high frequency signal. One end of the mid-high frequency receiving power amplifier 203 is electrically connected to the second antenna 400b through the switch 206, and at this time, the mid-high frequency receiving port, the mid-high frequency receiving power amplifier 203, the switch 206 and the second antenna 400b may form a MIMO link of PRX of MHB signals, so as to implement main set receiving of MIMO of the mid-high frequency signals.

It is understood that the mid-high frequency receiving power amplifier 203 may be, but is not limited to, at least one of the first receiving power amplifier 1321, the second receiving power amplifier 1323, and the third receiving power amplifier 1325 of the foregoing embodiments; accordingly, the changeover switch 206 may be, but is not limited to, at least one of the third switching element 1322, the fourth switching element 1324, and the fifth switching element 1326 in the foregoing embodiments.

It will be appreciated that PA Mid device 100 may include at least three Mid-high frequency receive power amplifiers 203 such that at least one Mid-high frequency receive power amplifier 203 may be electrically connected to a third terminal of the intermediate frequency diplexer, at least one other Mid-high frequency receive power amplifier 203 may be electrically connected to a third terminal of the high frequency diplexer, and at least one further Mid-high frequency receive power amplifier 203 may be electrically connected to second antenna 400b.

It will be appreciated that, as can be seen in fig. 12 and 13, the rf transmit port 111 may also comprise a 2G high frequency transmit port; the external filter assembly 200 further includes a 2G high frequency signal duplexer, wherein a first end of the 2G high frequency signal duplexer may be electrically connected to the first electrical connection port 150a of the first portion, a second end of the 2G high frequency signal duplexer may be electrically connected to the first electrical connection port 150b of the second portion to electrically connect with the first switch circuit 140, and a third end of the 2G high frequency signal duplexer may be electrically connected to the first electrical connection port 150c of the third portion. The transmitting module 131 further includes a 2G high frequency signal power amplifier 207, one end of the 2G high frequency signal power amplifier 207 is electrically connected to the 2G high frequency transmitting port, and the other end of the 2G high frequency signal power amplifier 207 is electrically connected to the first electrical connecting port 150a of the first portion through a switching element, such as the intermediate frequency transmitting switch 204, so as to be electrically connected to the first end of the 2G high frequency signal duplexer, so that the 2G high frequency transmitting port, the 2G high frequency signal power amplifier 207, the intermediate frequency transmitting switch 204, the 2G high frequency signal duplexer, the first switching circuit 140 and the antenna assembly 400, such as the first antenna 400a, may form a 2G HB TX link to implement the transmission of the 2G high frequency signal. The 2G high frequency signal power amplifier 207 may be, but is not limited to, the second transmit power amplifier 1313 of the foregoing embodiment, and the intermediate frequency transmit switch 204 may be, but is not limited to, the first switching element 1312 of the foregoing embodiment.

In some embodiments, the 2G high frequency signal power amplifier 207 and the intermediate frequency signal power amplifier 201 may be connected to the same intermediate frequency transmit switch 204, and the intermediate frequency transmit switch 204 may be, but is not limited to, a double pole, multiple throw switch. In the present embodiment, the first switch circuit 140 may include, but is not limited to, a single pole, multi throw switch such that the MB signal or the 2G HB signal may be transmitted to the free space through the first antenna 400 a.

It is understood that in the embodiment of the present application, the PA Mid device 100 may be provided with a plurality of first electrical connection ports 150, where a portion of the first electrical connection ports 150 may implement electrical connection between the intermediate frequency transmit switch 204, the high frequency transmit switch 205, and the first switch circuit 140, and a portion of the first electrical connection ports 150 may implement electrical connection between the switch 206 and the second antenna 400 b. Specific structure can be seen in the accompanying drawings.

It will be appreciated that in some embodiments, multiple first antenna ports 120 may also be provided on the MHB PA Mid device 100 to electrically connect with the first antenna 400a, the second antenna 400b, and the third antenna 400 c. The first switch circuit 140 may be electrically connected to the plurality of first antenna ports 120 through, but not limited to, a multiple pole multiple throw switch. In some embodiments, a coupling module and a coupling port may also be provided on MHB PA Mid device 100, which are not described in detail herein.

It can be appreciated that, compared to the PA Mid device 100 shown in fig. 12, the PA Mid device 100 shown in fig. 13 has 2 amplifier modules reduced, the number of switch branches is reduced, and the structure is simpler; the PA Mid device 100 shown in fig. 14 not only reduces the number of amplifier modules and switch branches, but also saves HB GSM PA architecture. The PA Mid device 100 shown in fig. 12 may be applied to regions such as north america, the PA Mid device 100 shown in fig. 13 may be applied to regions such as europe, and the PA Mid device 100 shown in fig. 14 may be applied to regions such as china.

Based on the above-mentioned structure of the PA Mid device 100, the following describes the structure of the LFEM device 300 according to the embodiment of the present application, and compared with the PA Mid device 100, the LFEM device 300 does not include a transmitting module, and the LFEM device 300 mainly implements diversity reception of radio frequency signals. Referring to fig. 15 and fig. 16, fig. 15 is a schematic diagram of a first structure of an LFEM device 300 according to an embodiment of the present invention, and fig. 16 is a schematic diagram of a first electrical connection of the LFEM device 300 shown in fig. 15. The LFEM device 300 includes a second rf receiving port 312 electrically connected to the rf transceiver 500, a second electrical connection port 350 electrically connected to the external filter assembly 200, and a third antenna port 320 electrically connected to the antenna assembly 400, and the antenna assembly 400 may include a third antenna 400c. LFEM device 300 also includes a second receiving module 331 and a second switching circuit 340.

The second receiving module 331 is electrically connected to the second rf receiving port 312 and the first portion of the second electrical connection port 350a, where the second receiving module 331 is configured to amplify an rf receiving signal, and the first portion of the second electrical connection port 350a is further configured to be electrically connected to one end of the external filter assembly 200. The second switch circuit 340 is electrically connected to the third antenna port 320 and the second electrical connection port 350b of the second portion, and the second electrical connection port 350b of the second portion is further configured to be electrically connected to the other end of the external filter assembly 200, and the second switch circuit 340 is configured to be electrically connected to the second receiving module 331 through the external filter assembly 200. The third antenna port 320 is further configured to be electrically connected to an antenna assembly 400, such as a third antenna 400c. At this time, the second rf receiving port 312, the second receiving module 331, the external filtering assembly 200, the second switching circuit 340, and the antenna assembly 400, for example, the third antenna 400c may form a diversity receiving path (DRX) for receiving the rf signal, and the third antenna 400c may be a diversity receiving antenna for receiving the rf signal.

It is understood that the external filter assembly 200 may include a filter, and two ends of the filter may be electrically connected to the third antenna port 320a of the first portion and the third antenna port 320b of the second portion, respectively. The filter can be a filter circuit consisting of a capacitor, an inductor and a resistor, and can effectively filter the frequency point of the specific frequency or the frequency outside the frequency point to obtain a signal of the specific frequency or eliminate a signal of the characteristic frequency. The filter of the embodiment of the application can be, but is not limited to, a surface wave filter (surface acoustic wave, SAW for short), a bulk acoustic wave filter with resonant cavity (Bulk Acoustic Wave Filter, BAW for short). Because of the technical barriers of the filter, some manufacturers are not easy to produce a filter with excellent performance. According to the scheme, the external filter assembly 200 is independent of the LFEM device 300, so that the production difficulty of the LFEM device 300 can be reduced.

The second receiving module 331 of the LFEM device 300 in the embodiment of the present application is electrically connected to the second switching circuit 340 through the external filtering component 200 to form a path for receiving a radio frequency signal, where the LFEM device 300 has a certain integration level; meanwhile, the external filter assembly 200 is independent of the scheme of the LFEM device 300, so that the production difficulty of the LFEM device 300 is greatly reduced, and the industrial production of the LFEM device 300 is facilitated. In addition, when the LFEM device 300 of the present application reserves the second electrical connection port 350 electrically connected to the external filter assembly 200, the modularized LFEM device 300 may be electrically connected to the modularized external filter assembly 200, which is more beneficial to industrial production of the radio frequency system 12.

Referring to fig. 15 and 16 in combination with fig. 17, fig. 17 is a schematic diagram of a second electrical connection of the LFEM device 300 shown in fig. 15. The second rf receiving port 312 includes a third sub-receiving port 3121, the filter includes a first filter 214, and one end of the first filter 214 is electrically connected to the second switch circuit 340 through a second electrical connection port 350b of the second portion; the second receiving module 331 includes a fourth receiving power amplifier 3311 and a sixth switching element 3312.

The output end of the fourth receiving power amplifier 3311 is electrically connected to the third sub-receiving port 3121, the input end of the fourth receiving power amplifier 3311 is electrically connected to the common end of the sixth switching element 3312, the switching end of the sixth switching element 3312 is electrically connected to the second electrical connection port 350a of the first portion to be electrically connected to the other end of the first filter 214, and the third sub-receiving port 3121, the fourth receiving power amplifier 3311, the sixth switching element 3312, the first filter 214, the second switching circuit 340, the third antenna port 320 and the third antenna assembly 400, for example, the three antenna 400c form a diversity receiving path (DRX) for receiving radio frequency signals. The sixth switching element 3312 is configured to turn on the common terminal and the switching terminal of the sixth switching element (sixth switching element 3312), so that the fourth receiving power amplifier 3311 receives the radio frequency signal in a Diversity Reception (DRX) mode and amplifies the radio frequency received signal.

It is appreciated that the sixth switching element 3312 may include one or more switching terminals to be electrically connected to the one or more first filters 214, respectively, and the one or more first filters 214 may correspond to one or more ports of the second switching circuit 340 to form one or more radio frequency signal receiving paths, and that the diversity receiving and transmitting paths (DRX) may implement transmission of different radio frequency signals under the switching of the sixth switching element 3312 and the second switching circuit 340.

Referring to fig. 17 again, in other embodiments, the LFEM device 300 further includes a fourth antenna port 360 electrically connected to the antenna assembly 400, the antenna assembly 400 may further include a fourth antenna 400d, and the first rf receiving port 112 further includes a fourth sub-receiving port 3122. The second receiving module 331 further includes a fifth receiving power amplifier 3313 and a seventh switching element 3314.

The output end of the fifth receiving power amplifier 3313 is electrically connected to the fourth sub-receiving port 3122, the input end of the fifth receiving power amplifier 3313 is electrically connected to the common end of the seventh switching element 3314, and the switching end of the seventh switching element 3314 is electrically connected to the fourth antenna port 360 to realize the electrical connection with the fourth antenna 400 d. The seventh switching element 3314 may turn on the common terminal and the switching terminal (the seventh switching element 3314), the fourth sub-receiving port 3122, the fifth receiving power amplifier 3313, the seventh switching element 3314 and the fourth antenna 400d may form a MIMO diversity receiving link, and the fifth receiving power amplifier 3313 may receive the radio frequency signal in a MIMO diversity receiving manner (MIMO DRX) and perform an amplifying process.

It is understood that the first receiving module 132 may include a combination of one fifth receiving power amplifier 3313 and one seventh switching element 3314, or may include a combination of a plurality of fifth receiving power amplifiers 3313 and a plurality of seventh switching elements 3314.

The LFEM device 300 according to the embodiment of the present application includes a DRX combination formed by the fourth receiving power amplifier 3311 and the sixth switching element 3312 and a MIMO DRX combination formed by the fifth receiving power amplifier 3313 and the plurality of seventh switching elements 3314, and the LFEM device 300 may integrate multiple receiving modes, and the LFEM device 300 may have a higher integration level.

Referring to fig. 17 again, the filter includes a fourth duplexer 215, a first end of the fourth duplexer 215 may be electrically connected to the second electrical connection port of the first portion, a first end of the fourth duplexer 215 may be electrically connected to the second electrical connection port of the third portion, a second end of the fourth duplexer 215 may be electrically connected to the second electrical connection port of the second portion, and a third end of the fourth duplexer 215 may be electrically connected to the second electrical connection port of the third portion. The second receiving module 331 includes a sixth receiving power amplifier 3315 and an eighth switching element 3316.

The output end of the sixth receiving power amplifier 3315 is electrically connected to the second rf receiving port 312 (e.g., at least one of the third sub-receiving port 3121 and the fourth sub-receiving port 3122 described above, or to other rf receiving ports of the LFEM device 300), the common end of the eighth switching element 3316 is electrically connected to the input end of the sixth receiving power amplifier 3315, and a switching end (may be a plurality of switching ends, where a switching end and another switching end are used only for naming and distinguishing, and not used for limiting the number) of the eighth switching element 3316 is electrically connected to the second electrical connecting port 350a of the first portion to be electrically connected to the first end of the fourth duplexer 215, and the other switching end of the eighth switching element 3316 is electrically connected to the second electrical connecting port 350 of the third portion to be electrically connected to the third end of the fourth duplexer 215.

It is understood that the eighth switching element 3316 is configured to turn on the common terminal and a switching terminal (of the eighth switching element 3316) so that the sixth receiving power amplifier 3315 receives a radio frequency signal in a diversity receiving manner and amplifies the radio frequency received signal. The eighth switching element 3316 is further configured to switch on the common terminal and the other switching terminal, so that the sixth receiving power amplifier 3315 receives the other rf signal in a diversity receiving manner and amplifies the other rf received signal. Thus, the second rf receiving port 312, the sixth receiving power amplifier 3315, the eighth switching element 3316, the external filtering component 200 such as the fourth duplexer 215, the second switching circuit 340, and the antenna component 400 such as the third antenna 400c may form a dual DRX path.

It is appreciated that the sixth receive power amplifier 3315, the eighth switching element 3316, and the fourth duplexer 215 may each include an equal number of elements such that the PA Mid device 100 may form a plurality of DRX path combinations.

In the LFEM device 300 of the embodiment of the present application, under the switching of the eighth switching element 3316, the above DRX path may be switched from receiving a certain radio frequency signal to receiving another radio frequency signal, and the LFEM device 300 of the embodiment of the present application may implement diversity reception of more radio frequency signals.

It should be noted that, the LFEM device 300 according to the embodiment of the present application may include at least one of the DRX combination formed by the fourth receiving power amplifier 3311 and the sixth switching element 3312, the MIMO DRX combination formed by the fifth receiving power amplifier 3313 and the seventh switching element 3314, and the dual radio frequency signal DRX combination formed by the sixth receiving power amplifier 3315 and the eighth switching element 3316, where the LFEM device 300100 has a richer receiving function, and the LFEM device 300 is more suitable for use in a wider field.

It should be noted that, in the LFEM device 300, the LFEM device 300 may further set an idle antenna port and a radio frequency port for standby. The number, structure, etc. of the switching elements may also be adaptively set by the second switching circuit 340 according to the specific structure of the LFEM device 300, so as to implement the related functions of the LFEM device 300. The antenna assembly 400 electrically connected to the LFEM device 300 may include elements such as an antenna radiator, a combiner, and a switch. The structures not described in the specification can be referred to in the drawings, and are not described in detail herein.

The following description will take the LFEM device 300 of the present application as an example of a low-medium-high frequency receiving device (LFEM device). Referring to fig. 18 to 20, fig. 18 is a schematic diagram of a second structure of the LFEM device provided in the embodiment of the present application, fig. 19 is a schematic diagram of a third structure of the LFEM device provided in the embodiment of the present application, and fig. 20 is a schematic diagram of a fourth structure of the LFEM device provided in the embodiment of the present application.

The antenna assembly 400 includes a third antenna 400c and a fourth antenna 400d, wherein the third antenna 400c may be a diversity reception antenna (LMH DRX antenna) for low-medium-high frequency signals, and the fourth antenna 400d may be a diversity reception MIMO antenna (LMH DRX MIMO antenna) for low-medium-high frequency signals. The external filtering component 200 includes a low frequency diversity filter, a low frequency MIMO diversity filter, a medium and high frequency diversity filter, and a medium and high frequency MIMO diversity filter. The second switch circuit 340 is electrically connected to the third antenna 400c through the third antenna port 320. The second rf receiving port 312 includes a low frequency rf receiving port and a medium and high frequency rf receiving port. The second receiving module 331 includes a low frequency diversity signal power amplifier 301, a low frequency MIMO diversity signal power amplifier 302, a mid-high frequency diversity signal power amplifier 303, a mid-high frequency MIMO diversity signal power amplifier 304, a first selection switch 305, a second selection switch 306, a third selection switch 307, and a fourth selection switch 308.

It can be appreciated that one end of the low-frequency diversity signal power amplifier 301 is electrically connected to the low-frequency radio frequency receiving port, the other end of the low-frequency diversity signal power amplifier 301 is electrically connected to the second electrical connection port 350a of the first portion through the first selection switch 305 to electrically connect to one end of the low-frequency diversity filter, and the other end of the low-frequency diversity filter is electrically connected to the second switching circuit 340 through the second electrical connection port 350 of the second portion. Thus, the low frequency radio frequency reception port, the low frequency diversity signal power amplifier 301, the first selection switch 305, the low frequency diversity filter, the second switching circuit 340 and the antenna assembly 400, e.g., the third antenna 400c, may form an LB DRX link to achieve DRX reception of low frequency signals.

It is understood that one end of the low frequency MIMO diversity signal power amplifier 302 is electrically connected to the low frequency rf receiving port, and the other end of the low frequency MIMO diversity signal power amplifier 302 is electrically connected to the fourth antenna port 360 through the second selection switch 306 to achieve electrical connection with the fourth antenna 400 d. Thus, the low frequency radio frequency receiving port, the low frequency MIMO diversity signal power amplifier 302, the second selection switch 306, and the fourth antenna 400d may form a MIMO link of the LB DRX to achieve DRX MIMO reception of the low frequency signals.

It can be understood that one end of the mid-high frequency diversity signal power amplifier 303 is electrically connected to the mid-high frequency radio frequency receiving port, the other end of the mid-high frequency diversity signal power amplifier 303 is electrically connected to the other end of the mid-high frequency diversity filter through the third selection switch 307, and one end of the mid-high frequency diversity filter is electrically connected to the third antenna 400c through the first switch circuit 140. Thus, the mid-high frequency radio frequency reception port, the mid-high frequency diversity signal power amplifier 303, the third selection switch 307, the mid-high frequency diversity filter, the second switching circuit 340 and the antenna assembly 400, e.g., the third antenna 400c, may form an MHB DRX link to achieve DRX reception of mid-high frequency signals.

It can be appreciated that one end of the mid-high frequency MIMO diversity signal power amplifier 304 is electrically connected to the mid-high frequency rf receiving port, and the other end of the mid-high frequency MIMO diversity signal power amplifier 304 is electrically connected to the fourth antenna 400d through the fourth selection switch 308. Thus, the mid-high frequency radio frequency receive port, mid-high frequency MIMO diversity signal power amplifier 304, fourth selection switch 308, and antenna assembly 400, e.g., fourth antenna 400d, may form a MIMO link for MHB DRX to achieve DRX MIMO reception of mid-high frequency signals.

It is understood that the low frequency diversity signal power amplifier 301 and the low frequency MIMO diversity signal power amplifier 302 may be electrically connected to the low frequency radio frequency receiving port through the same switching element, for example, the electrical connection with the low frequency radio frequency receiving port may be achieved through a double pole double throw switch.

It will be appreciated that the LFEM device may include one or more mid-to-high frequency diversity signal power amplifiers 303 and one or more mid-to-high frequency MIMO diversity signal power amplifiers 304, where the plurality of mid-to-high frequency diversity signal power amplifiers 303 and the mid-to-high frequency MIMO diversity signal power amplifiers 304 may be electrically connected to corresponding mid-to-high frequency radio frequency receiving ports through the same switching element.

It will be appreciated that in some embodiments, the second switching circuit 340 of the LFEM device may comprise two switching modules, one of which is compatible with the low frequency diversity signal power amplifier 301, the low frequency MIMO diversity signal power amplifier 302; the other switch module is adapted to the mid-high frequency diversity signal power amplifier 303, the mid-high frequency MIMO diversity signal power amplifier 304.

It can be appreciated that the LFEM device shown in fig. 19 and 20 reduces the number of receiving power amplifier modules and the number of switch branches, compared with the LFEM device shown in fig. 18, and the structure is simpler. The LFEM device shown in fig. 1 may be applied to regions such as north america, the LFEM device shown in fig. 19 may be applied to regions such as europe, and the LFEM device shown in fig. 20 may be applied to regions such as china.

Based on the structures of the PA Mid device 100 and the LFEM device 300 described above, the embodiments of the present application may also combine at least one PA Mid device 100 and at least one LFEM device 300 to form a more functional radio frequency system 12. For example, please refer to fig. 21 to 23, fig. 21 is a second structural schematic diagram of the rf system 12 provided in the embodiment of the present application, and fig. 22 is a third structural schematic diagram of the rf system 12 provided in the embodiment of the present application. Fig. 23 is a schematic diagram of a fourth configuration of the rf system 12 according to an embodiment of the present application. The radio frequency system 12 includes a first PA Mid device 100a, a second PA Mid device 100b, and a first LFEM device 300a, as well as a first external filter assembly 200a that is matched to the first PA Mid device 100a, a second external filter assembly 200b that is matched to the second PA Mid device 100b, and a third external filter assembly 200c that is matched to the first LFEM device 300 a.

In some embodiments, as shown in fig. 21, the first PA Mid device 100a may be an LB PA Mid device suitable for use in north america, the second PA Mid device 100b may be an MHB PA Mid device suitable for use in north america, and the first LFEM device 300a may be an LFEM device suitable for use in north america.

In other embodiments, as shown in fig. 22, the first PA Mid device 100a may be an LB PA Mid device suitable for use in a european region, the second PA Mid device 100b may be an MHB PA Mid device suitable for use in a european region, and the first LFEM device 300a may be an LFEM device suitable for use in a european region.

In still other embodiments, as shown in fig. 23, the first PA Mid device 100a may be an LB PA Mid device suitable for a chinese region, the second PA Mid device 100b may be an MHB PA Mid device suitable for a chinese region, and the first LFEM device 300a may be an LFEM device suitable for a chinese region.

The following describes a Transmission (TX) link, a Primary Reception (PRX) link, a Diversity Reception (DRX) link, a MIMO primary reception (PRX MIMO) link, and a MIMO diversity reception (DRX MIMO) link of the N41 signal, taking the N41 signal (medium-high frequency signal) as an example of the radio frequency system 12 shown in fig. 21.

N41 TX link: outputting a transmission signal from a TXO HB port of a Transceiver device (radio frequency Transceiver 500); entering an MHB PAMid device through a 4G HB RFIN port; amplified by 4G HB PA and then sent to SP6T switch; SP6T switches to contact 5 to HB TX OUT5 port; after N41 Filter filtering, SPDT is switched to contact 1 to TRX13 port; DP15T is switched to contact 1, to ANT1 port output; path03 is passed to Combiner1; after combining, the antenna is output to the port of the ANT1 antenna (first antenna 400 a) via path 01.

N41 PRX link: enter from the ANT1 antenna port, pass through Path01 Path, and reach Combiner1; an ANT1 port input to the MHB PAMid device via Path 03; DP15T is switched to contact 15, and after Filter filtering, SPDT is reached; SPDT switches to contact 2 to LNA AUX3 port; SP3t#2 switches single port to LNA1; amplifying by LNA1, and then switching to a 6P6T switch; 6P6T switches to contact 1 to LNA OUT1 port output; the received signal enters a transducer device through an SDR PRX0 port.

N41 DRX link: enters from the port of the ANT3 antenna (third antenna 400 c) and passes through the Path08 to the Combiner2; after combining, the Path07 is passed to the DP15T switch; DP15T switches to contact 17 to DRX IN port; via Path05 to MHB ANT port of FEM device; SP9T switches to contact 6 to the MHB TRX6 port; after the filtering by the Filter, the Filter is used for filtering, to the LNA AUX HB4 port; SP3t#5 switches single port to LNA6; amplifying by LNA, and then switching to a 6P6T switch; 6P6T switches to contact 4 to LNA OUT MHB4 port output; and the received signal enters a transmitter device through the SDR DRX6 port.

N41 PRX MIMO link: enters from the port of the ANT2 antenna (second antenna 400 b) and passes through the Path09 to the Combiner3; after combining the combiners 3, the combined signals pass through a Path11 Path to reach an SP3T#1 switch; after the filtering by the Filter, the Filter is used for filtering, to the LNA AUX14 port; SP3t#3 switches single port to LNA4; after LNA4 amplification, to a 6P6T switch; 6P6T switches to contact 4 to LNA OUT4 port output; the received signal enters the transmitter device through the SDR PRXE port.

N41 DRX MIMO link: enter from the ANT4 antenna (fourth antenna 400 d) port, pass through Path20, and reach combiners 4; after combining the combiners 4, the combined signals pass through a Path22 Path to an SP3T#2 switch; after the filtering by the Filter, the Filter is used for filtering, to the LNA AUX HB1 port; SP3t#7 switches single port to LNA8; after LNA8 amplification, to a 6P6T switch; 6P6T switches to contact 6 to LNA OUT MHB6 port output; the received signal enters the transducer device through the SDR DRXA port.

The following describes a Transmission (TX) link, a primary set reception (PRX) link, a Diversity Reception (DRX) link, a MIMO primary set reception link, and a MIMO diversity reception link of the N41 signal, taking the N41 signal (medium-high frequency signal) as an example of the radio frequency system 12 shown in fig. 22.

N41 TX link: outputting a transmitting signal from a TXO HB port of the transmitter device; entering an MHB PAMid device through a 4G HB RFIN port; amplified by 4GHB PA, and then switched to SP4 T#3; SP4T#3 switches to contact 2, to the HB TX OUT2 port; after N41 Filter filtering, SPDT is switched to contact 1 to TRX8 port; DP11T is switched to contact 1, and the output is from the ANT1 port; the Path03 is passed through to the Combiner1; and after combining, outputting the antenna to an ANT1 antenna port through a path01 path.

N41 PRX link: enter from the ANT1 antenna port, pass through Path01 Path, and reach Combiner1; an ANT1 port input to the MHB PAMid device via Path 03; DP11T is switched to contact 10, and after Filter filtering, SPDT is reached; SPDT switches to contact 2 to LNA AUX3 port; SP3t#2 switches single port to LNA1; amplifying by LNA1, and switching to a 4P4T switch; 4P4T switches to contact 1 to LNA OUT1 port output; the received signal enters a transducer device through an SDR PRX0 port.

N41 DRX link: enter from the ANT3 antenna port, pass through Path08 Path, and reach Combier 2; after combining, the Path07 is passed to the DP15T switch; DP11T switches to contact 13 to DRX IN port; via Path05 to MHB ANT port of FEM device; SP8T switches to contact 6 to the MHB TRX6 port; after the filtering by the Filter, the Filter is used for filtering, to the LNA AUX HB1 port; SP4t#3 switches single port to LNA5; amplifying by LNA, and then switching to 4P 4T; 4P4T switches to contact 3 to LNA OUT MHB3 port output; and the received signal enters a transmitter device through the SDR DRX4 port.

N41 PRX MIMO link: enter from the ANT2 antenna port, pass through Path09 Path, and reach combiners 3; after combining the combiners 3, the combined signals pass through a Path11 Path to reach an SP3T#1 switch; after the filtering by the Filter, the Filter is used for filtering, to the LNA AUX14 port; SP3t#3 switches single port to LNA4; after LNA4 amplification, to a 4P4T switch; 4P4T switches to contact 4 to LNA OUT4 port output; the received signal enters the transmitter device through the SDR PRXE port.

N41 DRX MIMO link: enter from the ANT4 antenna port, pass through the Path19 Path to the combiners 4; after combining the combiners 4, the combined signals pass through a Path21 Path to an SP3T#2 switch; after the filtering by the Filter, the Filter is used for filtering, to the LNA AUX HB5 port; SP3t#3 switches single port to LNA3; after LNA amplification, to a 4P4T switch; 4P4T switches to contact 1 to LNA OUT MHB1 port output; and the received signal enters a transmitter device through the SDR DRX0 port.

The following describes a Transmission (TX) link, a primary set reception (PRX) link, a Diversity Reception (DRX) link, a MIMO primary set reception link, and a MIMO diversity reception link of the N41 signal, taking the N41 signal (medium-high frequency signal) as an example of the radio frequency system 12 shown in fig. 23.

N41 TX link: outputting a transmitting signal from a TXO HB port of the transmitter device; entering an MHB PAMid device through a 4G HB RFIN port; amplified by 4GHB PA, and then switched to SP4 T#3; SP4T#3 switches to contact 3, to HB TX OUT3 port; after N41 Filter filtering, SPDT is switched to contact 1 to TRX8 port; DP10T is switched to contact 1, and the port output of ANT1 is obtained; the Path03 is passed through to the Combiner1; after combining, outputting the combined signals to an ANT1 antenna port through a path01 path;

n41 PRX link: enter from the ANT1 antenna port, pass through Path01 Path, and reach Combiner1; an ANT1 port input to the MHB PAMid device via Path 03; DP10T is switched to contact 10, and after Filter filtering, SPDT is reached; SPDT switches to contact 2 to LNA AUX3 port; SP3t#2 switches single port to LNA1; amplifying by LNA1, and switching to a 4P4T switch; 4P4T switches to contact 1 to LNA OUT1 port output; the received signal enters a transducer device through an SDR PRX0 port.

N41 DRX link: enter from the ANT3 antenna port, pass through Path08 Path, and reach Combier 2; after combining, the Path07 is passed to the DP10T switch; DP10T switches to contact 12 to DRX IN port; via Path05 to MHB ANT port of FEM device; SP8T switches to contact 6 to the MHB TRX6 port; after the filtering by the Filter, the Filter is used for filtering, to the LNA AUX HB1 port; SP4t#3 switches single port to LNA5; amplifying by LNA5, and switching to 4P 4T; 4P4T switches to contact 3 to LNA OUT MHB3 port output; and the received signal enters a transmitter device through the SDR DRX4 port.

N41 PRX MIMO link: enter from the ANT2 antenna port, pass through Path09 Path, and reach combiners 3; after combining the combiners 3, the combined signals pass through a Path11 Path to an SP3T#2 switch; after the filtering by the Filter, the Filter is used for filtering, to the LNA AUX14 port; SP3t#3 switches single port to LNA4; after LNA4 amplification, to a 4P4T switch; 4P4T switches to contact 4 to LNA OUT4 port output; the received signal enters the transmitter device through the SDR PRXE port.

N41 DRX MIMO link: enter from the ANT4 antenna port, pass through the Path18 Path, and reach the combiners 4; after combining the combiners 4, the combined signals pass through a Path20 Path to an SP3T#2 switch; after the filtering by the Filter, the Filter is used for filtering, to the LNA AUX HB5 port; SP3t#3 switches single port to LNA3; after LNA amplification, to a 4P4T switch; 4P4T switches to contact 1 to LNA OUT MHB1 port output; and the received signal enters a transmitter device through the SDR DRX0 port.

The communication link is described above using the N41 band as an example, and other low frequency signals, high frequency signals, and 2G signals may be referred to as having corresponding communication links, and are not limited thereto.

Based on the structures of the PA Mid device 100, the LFEM device 300 and the radio frequency system 12, the embodiments of the present application provide a new PA Mid device 100 and radio frequency system 12, which can effectively avoid monopoly of built-in filter devices such as SAW filters and BAW filters, and can effectively improve the integration level of the scheme.

Based on the above-mentioned structures of the PA Mid device 100, LFEM device 300 and radio frequency system 12, please refer to fig. 24, fig. 24 is a schematic diagram of a second structure of the communication device 10 according to the embodiment of the present application. The communication device 10 may also include a processor 13 and a memory 14.

Processor 13 may be a control center of communication device 10. The processor 13 connects the various portions of the overall communication device 10 using various interfaces and lines to perform various functions of the communication device 10 and process data by running or executing applications stored in the memory 14 and invoking data stored in the memory 14, thereby monitoring the overall communication device 10.

Memory 14 may be used to store applications and data. The memory 14 stores application programs including executable program code. Applications may constitute various functional modules. The processor 13 executes various functional applications and data processing by running application programs stored in the memory 14.

Referring to fig. 25, fig. 25 is a schematic diagram of a third configuration of a communication device 10 according to an embodiment of the present application. The communication device 10 may be, but not limited to, a smart phone, a tablet computer, a game device, an augmented reality (Augmented Reality, abbreviated as AR) device, an automobile device, a data storage device, an audio playing device, a video playing device, a notebook computer, a desktop computing device, and the like. The communication device 10 of the present embodiment may further include a display 15, a center 16, a circuit board 17, a battery 18, a rear housing 19, and the like.

The display 15 may be used to display information such as images, text, etc. The display 15 may be mounted on the center 16 and connected to the rear cover through the center 16 to form a display surface of the communication device 10. The display 15, as a front housing of the communication device 10, forms together with the rear cover a housing of the communication device 10 for accommodating other electronics of the communication device 10.

The center 16 may provide support for the electronics or electronics in the communication device 10. The middle frame 16 may form a receiving space in which electronic components and electronic devices in the communication apparatus 10 may be mounted and fixed.

The circuit board 17 may be mounted on the center 16. The circuit board 17 may be a motherboard of the communication device 10. One, two or more of microphone, speaker, receiver, earphone interface, universal serial bus interface (USB interface), camera module, distance sensor, environmental sensor, gyroscope, and processor 13 may be integrated on the circuit board 17. It will be appreciated that the rf circuit 100 of the previous embodiment may be disposed on the circuit board 17 to control the rf circuit 100 by the processor 13 on the circuit board 17.

A battery 18 may be mounted to the center 16. Meanwhile, the battery 18 is electrically connected to the circuit board 17 to enable the battery 18 to power the communication device 10. A power management circuit may be provided on the circuit board 17. The power management circuitry is used to distribute the voltage provided by the battery 18 to the various electronic components in the communication device 10.

The rear shell 19 may be connected to the center 16. The rear case 19 is used to seal the electronic components and functional components of the communication device 10 inside the communication device 10 together with the middle frame 16 and the display 15 to form a protective effect for the electronic components and functional components of the communication device 10.

It will be appreciated that PA Mid device 100, external filter assembly 200, LFEM device 300, and radio frequency transceiver 500 may be disposed within communication device 10, and PA Mid device 100, external filter assembly 200, and radio frequency transceiver 500 may be disposed on circuit board 17, but are not limited thereto. The first through fourth antennas 400a through 400d of the antenna assembly 400 may be disposed inside the communication device 10, or at least one antenna may be formed on the middle frame 16 to form a bezel antenna. The specific forming mode of the antenna is not limited in the embodiment of the present application.

It will be appreciated that the communication device 10 may further include a camera module, a bluetooth module, etc., which will not be described herein.

In the description of the present application, it should be understood that terms such as "first," "second," and the like are used merely to distinguish between similar objects and should not be construed to indicate or imply relative importance or implying any particular order of magnitude of the technical features indicated.

The PA Mid device, LFEM device, radio frequency system and communication device provided in the embodiments of the present application are described in detail above, and specific examples are applied herein to illustrate the principles and embodiments of the present invention, and the description of the above examples is only for aiding in understanding the present invention. Meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present invention, the present description should not be construed as limiting the present invention.

Claims

1. The PA Mid device is characterized by comprising a radio frequency transmitting port and a first radio frequency receiving port which are used for being electrically connected with a radio frequency transceiver, a first electric connection port which is used for being electrically connected with an external filter component, and a first antenna port which is used for being electrically connected with an antenna component; the PA Mid device further includes:

2. The PA Mid device of claim 1, wherein the radio frequency transmit port comprises a first sub-transmit port; the transmitting module includes:

the input end of the first transmission power amplifier is electrically connected with the first sub-transmission port; and

The first common end of the first switching element is electrically connected with the output end of the first transmission power amplifier, and the first switching end of the first switching element is used for being electrically connected with the first electric connection port of the first part; wherein,

the first switching element is used for conducting the first common terminal and the first switching terminal so that the first transmitting power amplifier receives and amplifies a first radio frequency signal.

3. The PA Mid device of claim 2, wherein the radio frequency transmit port further comprises a second sub-transmit port; the transmitting module further includes:

the input end of the second transmitting power amplifier is electrically connected with the second sub-transmitting port, and the output end of the second transmitting power amplifier is electrically connected with the second common end of the first switching element; wherein,

The second switching end of the first switching element is electrically connected with the first electrical connection port of the first part, and the first switching element is used for conducting the second common end and the second switching end so that the second transmitting power amplifier receives and amplifies the second radio frequency signal.

4. The PA Mid device of claim 3, wherein the first radio frequency signal is a 4G or 5G low frequency signal and the second radio frequency signal is a 2G low frequency signal; or,

the first radio frequency signal is a 4G or 5G intermediate frequency signal, and the second radio frequency signal is a 2G high frequency signal.

5. A PA Mid device according to claim 2 or 3, wherein the radio frequency transmit port further comprises a third sub-transmit port, the transmit module further comprising:

the input end of the third transmitting power amplifier is electrically connected with the third sub-transmitting port; and

The common end of the second switching element is electrically connected with the output end of the third transmitting power amplifier, and the switching end of the second switching element is electrically connected with the first electric connection port of the first part; wherein,

the second switching element is used for conducting the common terminal and the switching terminal of the second switching element so that the third transmitting power amplifier receives and amplifies a third radio frequency signal.

6. The PA Mid device of claim 5, wherein when said transmit module includes said first transmit power amplifier, said second transmit power amplifier, and said third transmit power amplifier, said first radio frequency signal is an intermediate frequency signal, said second radio frequency signal is a 2G high frequency signal, and said third radio frequency signal is a high frequency signal;

when the transmitting module comprises the first transmitting power amplifier and the third transmitting power amplifier, the first radio frequency signal is an intermediate frequency signal, and the third radio frequency signal is a high frequency signal.

7. The PA Mid device of claim 1, wherein the first radio frequency receive port comprises a first sub-receive port; the first receiving module includes:

the output end of the first receiving power amplifier is electrically connected with the first sub-receiving port; and

The common end of the third switching element is electrically connected with the input end of the first receiving power amplifier, and the switching end of the third switching element is electrically connected with the first electric connection port of the third part; wherein,

the third switching element is used for conducting the input end and the switching end of the third switching element so that the first receiving power amplifier amplifies the radio frequency receiving signal in a main set receiving mode.

8. The PA Mid device of claim 7, further comprising a second antenna port for electrical connection to an antenna assembly; the radio frequency receiving port comprises a second sub receiving port; the first receiving module further includes:

the output end of the second receiving power amplifier is electrically connected with the second sub-receiving port; and

A common end of the fourth switching element is electrically connected with the input end of the second receiving power amplifier, and a switching end of the fourth switching element is electrically connected with the second antenna port; wherein,

the fourth switching element is used for conducting the input end and the switching end of the fourth switching element so that the second receiving power amplifier amplifies the radio frequency receiving signal in a mode of MIMO main set reception.

9. The PA Mid device of claim 1, 7 or 8, wherein the first receiving module comprises:

the output end of the third receiving power amplifier is electrically connected with the first radio frequency receiving port; and

A common end of the fifth switching element is electrically connected with the input end of the third receiving power amplifier, one switching end of the fifth switching element is electrically connected with the first electric connection port of the third part, and the other switching end of the fifth switching element is electrically connected with the second antenna port;

The fifth switching element is used for conducting the common terminal and a switching terminal thereof so that the third receiving power amplifier amplifies a radio frequency receiving signal in a main set receiving mode;

the fifth switching element is used for conducting the common terminal and the other switching terminal, so that the third receiving power amplifier amplifies the other radio frequency receiving signal in a mode of MIMO main set reception.

10. The PA Mid device of claim 1, further comprising a second antenna port for electrical connection to an antenna assembly; the radio frequency transmitting port comprises a low frequency transmitting port, and the radio frequency receiving port comprises a low frequency main set radio frequency receiving port and a low frequency MIMO main set radio frequency receiving port; the transmitting module includes:

the low-frequency signal power amplifier is electrically connected with the low-frequency emission port at one end, and is electrically connected with the first electrical connection port of the first part at the other end through a low-frequency emission switch;

the first receiving module includes:

the low-frequency main set signal receiving power amplifier is electrically connected with the low-frequency main set radio frequency receiving port at one end, and the other end of the low-frequency main set signal receiving power amplifier is electrically connected with the first electric connecting port of the third part through a first low-frequency receiving switch; and

The low-frequency MIMO main set signal receiving power amplifier is characterized in that one end of the low-frequency MIMO main set signal receiving power amplifier is electrically connected with the low-frequency MIMO main set radio frequency receiving port, and the other end of the low-frequency MIMO main set signal receiving power amplifier is electrically connected with the second antenna port through a second low-frequency receiving switch.

11. The PAMid device of claim 10, wherein said radio frequency transmit port further comprises a 2G low frequency transmit port; the transmitting module further includes:

and one end of the 2G low-frequency signal power amplifier is electrically connected with the 2G low-frequency emission port, and the other end of the 2G low-frequency signal power amplifier is electrically connected with the first electric connection port of the first part through a low-frequency emission switch.

12. The PAMid device of claim 1, further comprising a second antenna port for electrical connection to an antenna assembly; the radio frequency transmitting port comprises an intermediate frequency transmitting port and a high frequency transmitting port, and the radio frequency receiving port comprises a medium and high frequency radio frequency receiving port; the transmitting module includes:

the intermediate frequency signal power amplifier is electrically connected with the intermediate frequency transmitting port at one end, and is electrically connected with the first electric connecting port of the first part at the other end;

The high-frequency signal power amplifier is electrically connected with the high-frequency emission port at one end, and is electrically connected with the first electrical connection port of the first part at the other end through a high-frequency emission switch;

the first receiving module includes:

the middle-high frequency receiving power amplifier is characterized in that one end of the middle-high frequency receiving power amplifier is electrically connected with the middle-high frequency radio frequency receiving port, and the other end of the middle-high frequency receiving power amplifier is electrically connected with at least one of the first electric connecting port and the second antenna port of the third part through a change-over switch.

13. The PA Mid device of claim 12, wherein the radio frequency transmit port further comprises a 2G high frequency transmit port; the transmitting module further includes:

and one end of the 2G high-frequency signal power amplifier is electrically connected with the 2G high-frequency transmitting port, and the other end of the 2G high-frequency signal power amplifier is electrically connected with the first electric connecting port of the first part through the intermediate-frequency transmitting switch.

14. The LFEM device is characterized by comprising a second radio frequency receiving port, a second electric connection port and a third antenna port, wherein the second radio frequency receiving port is used for being electrically connected with a radio frequency transceiver, the second electric connection port is used for being electrically connected with an external filter component, and the third antenna port is used for being electrically connected with an antenna component; the LFEM device further comprises:

15. The LFEM device of claim 14, wherein the second radio frequency receive port comprises a third sub-receive port; the second receiving module includes:

the output end of the fourth receiving power amplifier is electrically connected with the third sub-receiving port; and

A common end of the sixth switching element is electrically connected with the output end of the fourth receiving power amplifier, and a switching end of the sixth switching element is electrically connected with the second electrical connection port of the first part; wherein,

The sixth switching element is used for conducting the common terminal and the switching terminal, so that the fourth receiving power amplifier amplifies the radio frequency receiving signal in a diversity receiving mode.

16. The LFEM device of claim 15, further comprising a fourth antenna port for electrical connection to an antenna assembly; the radio frequency receiving port further comprises a fourth sub receiving port; the second receiving module further includes:

the output end of the fifth receiving power amplifier is electrically connected with the fourth sub-receiving port; and

A common end of the seventh switching element is electrically connected with the input end of the fifth receiving power amplifier, and a switching end of the seventh switching element is electrically connected with the fourth antenna port; wherein,

the seventh switching element is used for conducting the common terminal and the switching terminal, so that the fifth receiving power amplifier amplifies the radio frequency receiving signal in a MIMO diversity receiving mode.

17. The LFEM device of any one of claims 14 to 16, wherein the second receiving module further comprises:

The output end of the sixth receiving power amplifier is electrically connected with the second radio frequency receiving port; and

An eighth switching element, wherein a common end of the eighth switching element is electrically connected with an input end of the sixth receiving power amplifier, one switching end of the eighth switching element is electrically connected with the second electrical connection port of the first portion, another switching end of the eighth switching element is electrically connected with the second electrical connection port of the third portion, and the second electrical connection port of the third portion is used for electrically connecting with another end of the external filter assembly; wherein,

the eighth switching element is used for conducting the common terminal and a switching terminal, so that the sixth receiving power amplifier amplifies a radio frequency receiving signal in a diversity receiving mode;

the eighth switching element is configured to conduct the common terminal and the other switching terminal, so that the sixth receiving power amplifier amplifies the other radio frequency receiving signal in a diversity receiving manner.

18. The LFEM device of claim 14, wherein the second radio frequency receive port comprises a low frequency radio frequency receive port and a medium and high frequency radio frequency receive port; the second receiving module includes:

The low-frequency diversity signal power amplifier is electrically connected with the low-frequency radio frequency receiving port at one end, and is electrically connected with the second electric connecting port of the first part at the other end through a first selection switch;

the low-frequency MIMO diversity signal power amplifier is characterized in that one end of the low-frequency MIMO diversity signal power amplifier is electrically connected with the low-frequency radio frequency receiving port, the other end of the low-frequency MIMO diversity signal power amplifier is electrically connected with a fourth antenna port through a second selection switch, and the fourth antenna port is used for being electrically connected with the antenna assembly;

the middle-high frequency diversity signal power amplifier is electrically connected with the middle-high frequency radio frequency receiving port at one end, and is electrically connected with the second electric connecting port of the first part at the other end through a third selection switch;

the high-frequency MIMO diversity signal power amplifier is characterized in that one end of the high-frequency MIMO diversity signal power amplifier is electrically connected with the high-frequency radio frequency receiving port, and the other end of the high-frequency MIMO diversity signal power amplifier is electrically connected with the fourth antenna port through a fourth selection switch.

19. The radio frequency system is characterized by comprising a radio frequency transceiver, an external filtering component and an antenna component; the radio frequency system further comprises:

the PAMid device of any one of claims 1 to 13, the PAMid device being electrically connected to the radio frequency transceiver, the external filtering component and the antenna component, respectively; and/or the number of the groups of groups,

the LFEM device according to any one of claims 14 to 18, being electrically connected to the radio frequency transceiver, the external filtering component and the antenna component, respectively.

20. A communication device comprising the radio frequency system of claim 19.