CN112272030B

CN112272030B - Radio frequency front end module, radio frequency assembly and electronic equipment

Info

Publication number: CN112272030B
Application number: CN202011153720.3A
Authority: CN
Inventors: 张亭; 仝林
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2022-07-08
Anticipated expiration: 2040-10-26
Also published as: CN112272030A; WO2022089013A1

Abstract

The utility model relates to an electronic equipment technical field specifically is about a radio frequency front end module and radio frequency subassembly, electronic equipment, and the radio frequency front end module includes: the phase shifting unit is electrically connected with the antenna port and used for adjusting the phases of a plurality of signals flowing through the antenna port; the multiplexer unit is connected with the phase shifting unit and used for receiving the uplink signal of the first frequency band and the downlink signal of the second frequency band; the receiving unit is connected with the phase shifting unit and used for receiving a third frequency band downlink signal; the output unit is connected with the multiplexer unit and the receiving unit respectively, and is used for amplifying and outputting the second frequency band downlink signal and the third frequency band downlink signal. The external multiplexer is prevented from being hung in the radio frequency front end module, and the space on the mainboard of the electronic equipment can be saved.

Description

Radio frequency front end module, radio frequency assembly and electronic equipment

Technical Field

The present disclosure relates to the technical field of electronic devices, and in particular, to a radio frequency front end module, a radio frequency assembly, and an electronic device.

Background

With the development and progress of the technology, the 5G communication technology is gradually widely applied. One currently common Sub-3G endec combined frequency band is B1, B3, and N7, where B1 and B3 are 4G LTE supported frequency bands and N7 is 5G NR supported frequency band. In order to support communication in B1, B3 and N7 frequency bands, multiple antennas and multiple radio frequency front end modules are generally provided in electronic devices. Each antenna may correspond to a radio frequency front end module, and an antenna connected to a radio frequency module of the plurality of radio frequency front end modules is used for transmitting signals of a B1 frequency band and receiving signals of B3 and N7 frequency bands. In order to realize the function, a hexaplexer is usually required to be externally hung on the radio frequency front end module, and the externally hung hexaplexer occupies a piece distributing space on the mainboard.

It is noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure and therefore may include information that does not constitute prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

An object of the present disclosure is to provide a radio frequency front end module, a radio frequency module, and an electronic device, so as to save space on a motherboard of the electronic device to at least a certain extent.

According to a first aspect of the present disclosure, there is provided a radio frequency front end module, comprising:

an antenna port for connecting an antenna;

a phase shift unit electrically connected to the antenna port for adjusting phases of a plurality of signals flowing through the antenna port;

the multiplexer unit is connected with the phase shifting unit and used for receiving the uplink signal of the first frequency band and the downlink signal of the second frequency band;

the receiving unit is connected with the phase shifting unit and used for receiving a third frequency band downlink signal;

and the output unit is electrically connected with the multiplexer unit and the receiving unit respectively and is used for amplifying and outputting the second frequency band downlink signal and the third frequency band downlink signal.

According to a second aspect of the present disclosure, there is provided a radio frequency assembly comprising:

the radio frequency front end module;

and the first antenna is connected with an antenna port in the radio frequency front-end module.

According to a third aspect of the present disclosure, there is provided an electronic device comprising the radio frequency assembly described above.

The radio frequency front end module that this disclosed embodiment provided, receive first frequency channel upstream signal and second frequency channel downstream signal through the multiplexer unit, receive the downstream signal of third frequency channel through the receiving element, phase shift unit adjusts the phase place of the signal through the antenna port, thereby avoid each signal mutual interference, thereby realized transmitting first frequency channel upstream signal and receiving second frequency channel downstream signal and third frequency channel downstream signal through an antenna, and avoided hanging at radio frequency front end module multiplexer, can save the space on the mainboard to a certain extent.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The above and other features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 is a schematic diagram of carrier aggregation provided in the related art;

fig. 2 is a schematic diagram of a 5G dependent network provided in the related art;

fig. 3a is a schematic diagram of an LTE dual link provided in the related art;

fig. 3b is a schematic diagram of an LTE-NR dual link provided in the related art;

fig. 4 is a block diagram of a first rf front end module according to an exemplary embodiment of the present disclosure;

fig. 5 is a block diagram of a second rf front-end module according to an exemplary embodiment of the present disclosure;

fig. 6 is a block diagram of a third rf front-end module according to an exemplary embodiment of the disclosure;

fig. 7 is a block diagram of a fourth rf front-end module according to an exemplary embodiment of the disclosure;

fig. 8 is a block diagram of a fifth rf front-end module according to an exemplary embodiment of the disclosure;

fig. 9 is a block diagram of a radio frequency assembly provided by an exemplary embodiment of the present disclosure;

fig. 10 is a block diagram of another radio frequency assembly provided by an exemplary embodiment of the present disclosure;

fig. 11 is a schematic view of an electronic device provided in an exemplary embodiment of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.

The block diagrams shown in the figures may be functional entities and do not necessarily correspond to physically separate entities. That is, these functional entities may be implemented in the form of software, or in one or more software-hardened modules, or in different networks and/or processor devices and/or microcontroller devices.

The carrier aggregation technology is to aggregate a plurality of carriers with different LTE frequencies (or the same) into a wider spectrum, and also can aggregate discontinuous spectrum fragments together, thereby achieving the effect of improving the bandwidth. Five-carrier aggregation is to aggregate five carriers (which may be the same or different). Carrier aggregation may improve data rates and network performance in the uplink, downlink, or both. Carrier aggregation can also enable aggregation of Frequency Division Duplex (FDD) and Time Division Duplex (TDD) as well as licensed and unlicensed carrier spectrum. In an FDD communication link, separate frequency bands are used for transmission and reception. In a TDD communication link, uplink and downlink are separated by allocating different time slots in the same frequency band.

Currently, each user can allocate up to five subcarriers in 100MHz bandwidth, that is, each subcarrier can have a bandwidth of up to 20 MHz. As shown in fig. 1, 5 subcarriers are transmitted by the base station 01, received by the antennas at the same time, synthesized by the CA data pipe 02, and transmitted to the terminal 03. Common downlink CA combined frequency bands include: b1+ B3, B1+ B7, B2+ B7, B1+ B3+ B5, B1+ B3+ B7, B1+ B3+ B40, B1+ B3+ B41, and the like.

The newly released 5G NSA (non-independent networking) standard of 3GPP adopts LTE and 5G NR new air interface dual connectivity (endec). As shown in fig. 2, the 4G core network 05 is used with 4G as an anchor point for the control plane, 4G base station 04(eNB) as a master station, and 5G base station 06(gNB) as a slave station. The C-plane is responsible for processing control signals, i.e. managing call connections, and the U-plane is responsible for processing voice signals, i.e. managing call contents. In the NSA mode, the 5G network can be connected again only by connecting the 4G network through the C-plane, that is, the 5G network cannot be connected separately until the 4G network is connected.

In LTE dual connectivity, an RRC protocol is established between the primary station and the terminal, i.e. RRC messages are only transmitted between the primary station and the terminal. However, the master station and the slave station each perform Radio Resource Management (RRM), and the RRM functions are interactively coordinated between the master station and the slave station through an X2 interface, for example, the slave station interacts with the master station through an X2 interface after allocating resources, and then the master station transmits an RRC message including the slave station resource configuration to the terminal. That is, as shown in fig. 3(a), the terminal 03 can only see the RRC message from the primary station 01 only and can only reply to the primary station 01.

In the LTE-NR dual connection, not only the master station and the slave station each perform RRM, but also the RRC protocol is independently established between the master station and the slave station and the terminal. That is, as shown in fig. 3(b), the slave 07 no longer performs RRM interaction coordination with the master 01 through the X2 interface, but directly transmits from the slave to the terminal 03 through an RRC message. In addition, the independent RRC connection also means that the primary station 01 and the secondary station 07 can independently set RRC measurements. Currently, some commonly used endec composite frequency bands typically include three different frequency bands.

An exemplary embodiment of the present disclosure first provides a radio frequency front end module, as shown in fig. 4, the radio frequency front end module 100 includes: an antenna port 120, a multiplexer unit 130, a receiving unit 140, a phase shifting unit 150 and an output unit 160, wherein the antenna port 120 is used for connecting an antenna; the multiplexer unit 130 is connected to the phase shifting unit 150, and the multiplexer unit 130 is configured to receive the first frequency band uplink signal and the second frequency band downlink signal; the receiving unit 140 is electrically connected to the phase shifting unit 150, and the receiving unit 140 is configured to receive a third frequency band downlink signal; the output unit 160 is electrically connected to the multiplexer unit 130 and the receiving unit 140, respectively, and the output unit 160 is configured to amplify and output the second band downlink signal and the third band downlink signal. The first frequency band, the second frequency band and the third frequency band are different.

In the radio frequency front end module 100 provided by the embodiment of the present disclosure, the radio frequency front end module 100 may be used for 5G communication, the multiplexer unit 130 is used to receive the uplink signal of the first frequency band and the downlink signal of the second frequency band, the receiving unit 140 is used to receive the downlink signal of the third frequency band, and the phase shifting unit 150 is used to adjust the phase of the signal passing through the antenna port 120, so as to avoid mutual interference of the signals, thereby implementing transmission of the uplink signal of the first frequency band and reception of the downlink signal of the second frequency band and the downlink signal of the third frequency band through one antenna, avoiding externally hanging a multiplexer on the radio frequency front end module, and being capable of saving the space on the motherboard to a certain extent.

Further, the rf front-end module 100 provided in the embodiment of the present disclosure further includes: the package housing 110, the package housing 110 has a carrying portion, and the antenna port 120, the phase shifting unit 150, the multiplexer unit 130, the receiving unit 140 and the output unit 160 are disposed on the carrying portion.

As shown in fig. 5, the rf front-end module 100 according to the embodiment of the disclosure may further include an output switch unit 170, where the output switch unit 170 is disposed between the receiving unit 140 and the output unit 160, and the output switch unit 170 is configured to control the receiving unit 140 to transmit a signal to the output unit 160.

As shown in fig. 6, the radio frequency front end module provided in the embodiment of the present disclosure may further include a power amplifying unit 180 and a first switch unit 190, where the power amplifying unit 180 is disposed in the bearing portion, and the power amplifying unit 180 is configured to amplify the first frequency band uplink signal and the second frequency band uplink signal; the first switch unit 190 is disposed in the carrying portion, an input end of the first switch unit 190 is connected to the power amplifying unit 180, and output ends of the first switch unit 190 are respectively connected to the multiplexer unit 130, and are configured to transmit the first frequency band uplink signal and the second frequency band uplink signal to the multiplexer unit 130.

As shown in fig. 7, the rf front-end module provided in the embodiment of the present disclosure may further include a second switch unit 1010, where the second switch unit 1010 is disposed in the carrying portion, the second switch unit 1010 is connected to the phase shift unit 150, the multiplexer unit 130 and the antenna port 120, and the second switch unit 1010 may be conducted in multiple paths, so as to implement multiple signal interaction between the phase shift unit 150 and the antenna port 120.

The following will describe each part of the rf front-end module provided in the embodiments of the present disclosure in detail:

as shown in fig. 8, the power amplifying unit 180 may include a power amplifier 181, a transmission signal pin is disposed on the package housing 110, the power amplifier 181 may be connected to the transmission signal pin, and the transmission signal pin may be connected to the radio frequency circuit, so as to transmit the first frequency band uplink signal or the second frequency band uplink signal to the power amplifier 181, and amplify the first frequency band uplink signal or the second frequency band uplink signal transmitted to the power amplifier 181 through the power amplifier 181.

The first frequency band uplink signal and the second frequency band uplink signal share the power amplifier 181, so that the number of the power amplifiers 181 on the radio frequency front end module can be reduced, a bare chip is saved on a wafer, the cost of the radio frequency front end module is reduced, and the cost of electronic equipment is reduced.

The first switching unit 190 may include a single-pole four-throw switch 191, and a common terminal of the single-pole four-throw switch 191 is connected to an output terminal of the power amplifier 181. The first throw terminal and the second throw terminal of the single-pole four-throw switch 191 may be connected to the multiplexer unit 130. The third throw terminal of the spdt 191 may be connected to a test pin disposed on the package housing 110, through which a signal amplified and outputted by the power amplifier is transmitted to an external test circuit for testing the signal of the power amplifier 181. The fourth throw terminal of the spdt switch 191 may be connected to a transmission pin disposed on the package housing 110, and is configured to transmit the fourth frequency band uplink signal to the fourth frequency band transmission antenna through the transmission pin, and at this time, the power amplifier 181 may receive the fourth frequency band uplink signal.

When in the test mode, the common terminal and the third throw terminal of the spdt 191 are turned on to transmit the signal output from the power amplifier 181 to the test pin. When the power amplifier 181 is in the operating mode, when the first frequency band uplink signal is input, the common terminal and the first throw terminal of the spdt switch 191 are turned on, so as to transmit the first frequency band uplink signal to the multiplexer unit 130. When the power amplifier 181 inputs the uplink signal of the second frequency band, the common terminal of the spdt 191 and the second throw terminal are turned on, so as to transmit the uplink signal of the second frequency band to the multiplexer unit 130. When the power amplifier 181 inputs the uplink signal of the fourth frequency band, the common terminal of the spdt 191 and the fourth throw terminal are turned on to transmit the uplink signal of the fourth frequency band to the transmit pin.

In practical applications, the first switch unit 190 may also include other switches, for example, the first switch unit 190 may include a single-pole double-throw switch, in which case, the common terminal of the single-pole double-throw switch is connected to the power amplifier 181, and the first throw terminal and the second throw terminal of the single-pole double-throw switch are connected to the multiplexer unit 130, so as to transmit the first frequency band signal and the second frequency band signal to the multiplexer unit 130, respectively. Or the first switching unit 190 may include a plurality of switches, which are disposed between the power amplifier 181 and the multiplexer unit 130, and when receiving the corresponding signal, the corresponding switches are turned on. For example, when the first switch is used to transmit the first band signal, the first switch of the power amplifier 181 outputs the first band signal, and is turned on, and when the second switch is used to transmit the second band signal, the second switch of the power amplifier 181 outputs the second band signal, and is turned on.

The multiplexer unit 130 may include a quadplexer 131, the quadplexer 131 includes a first end and a second end, the first end of the quadplexer 131 is connected to the phase shifting unit 150, the second end of the quadplexer 131 includes a first sub-end, a second sub-end, a third sub-end and a fourth sub-end, the first sub-end is connected to the output module, the first sub-end is configured to transmit the first frequency band downlink signal to the output unit 160, the second sub-end receives the first frequency band uplink signal and transmits the first frequency band uplink signal to the first end, the third sub-end receives the second frequency band uplink signal and transmits the second frequency band uplink signal to the first end, the fourth sub-end is connected to the output module, and the fourth sub-end is configured to transmit the second frequency band downlink signal to the output unit 160.

The first sub-terminal and the second sub-terminal of the quadplexer 131 are connected to the output unit 160, the second sub-terminal of the quadplexer 131 is connected to the first throw terminal of the spdt 191 to receive the uplink signal of the first frequency band, and the third sub-terminal of the quadplexer 131 is connected to the second throw terminal of the spdt 191 to receive the uplink signal of the second frequency band.

For example, the first frequency band may be a B1 frequency band, and the second frequency band may be a B3 frequency band, that is, the quadplexer 131 is configured to receive and transmit signals of a B1 frequency band and signals of a B3 frequency band. Of course, in practical applications, the first frequency band and the second frequency band may be other frequency bands, and the embodiment of the disclosure is not limited thereto.

In the embodiment of the present disclosure, by using the quadruplex 131 to realize the transceiving of the radio frequency signals of the first frequency band and the second frequency band, the problem of large insertion loss of the quadruplex in the related art can be solved, so that the insertion loss of the radio frequency front end module is reduced, and the cost of the radio frequency front end module can be reduced by using the quadruplex 131.

In a possible implementation manner of the present disclosure, the receiving unit 140 may be configured to receive a third frequency band downlink signal, the receiving unit 140 may include a first filter 141, the first filter 141 is electrically connected to the phase shifting unit 150 and the output unit 160, the first filter 141 is configured to receive the third frequency band downlink signal transmitted by the antenna port 120, and the first filter 141 performs a filtering process on the third frequency band downlink signal.

Among them, the third frequency band may be any one of N7, N40, and N41, that is, the first filter 141 may be configured to be able to receive one of N7, N40, and N41. The antenna to which the corresponding antenna port 120 is connected is also capable of receiving the downlink signal of one of N7, N40, and N41. Of course, in practical applications, the third frequency band may also be other frequency bands, and the embodiment of the disclosure is not limited thereto.

In another possible embodiment of the present disclosure, the receiving unit 140 may be configured to receive a third band downlink signal, a fourth band downlink signal, a fifth band downlink signal, and a sixth band downlink signal. The receiving unit 140 may include a first filter 141, a second filter 142, a third filter 143, and a fourth filter 144.

The first filter 141 is electrically connected to the phase shifting unit 150 and the output unit 160, and the first filter 141 is configured to receive the third frequency band downlink signal transmitted by the phase shifting unit 150, filter the third frequency band downlink signal, and transmit the third frequency band downlink signal to the output unit 160. The second filter 142 is electrically connected to the phase shift unit 150 and the output unit 160, and the second filter 142 is configured to receive the downlink signal of the fourth frequency band transmitted by the phase shift unit 150, filter the downlink signal of the fourth frequency band, and transmit the filtered downlink signal of the fourth frequency band to the output unit 160; the third filter 143 is electrically connected to the phase shift unit 150 and the output unit 160, and the third filter 143 is configured to receive the fifth frequency band downlink signal transmitted by the phase shift unit 150, and filter the fifth frequency band downlink signal and transmit the fifth frequency band downlink signal to the output unit 160; the fourth filter 144 is electrically connected to the phase shifting unit 150 and the output unit 160, and the fourth filter 144 is configured to receive the downlink signal of the sixth frequency band transmitted by the phase shifting unit 150, and filter the downlink signal of the sixth frequency band and transmit the filtered downlink signal to the output unit 160.

Of course, in practical applications, the combination of the first filter 141, the second filter 142, the third filter 143 and the fourth filter 144 may be replaced by a quadplexer, in which case, the input end of the quadplexer may be connected to the phase shifting unit 150, and the output end of the quadplexer may be electrically connected to the output unit 160. Or the combination of the first filter 141, the second filter 142, the third filter 143, and the fourth filter 144 may be replaced with a combination of two duplexers. Or a combination of the first filter 141, the second filter 142, the third filter 143, and the fourth filter 144 may be replaced by a combination of a duplexer and two filters, and the like, which is not particularly limited in this embodiment of the disclosure.

Illustratively, the first frequency band is B1, the second frequency band is B3, the third frequency band is B7, the fourth frequency band is B25, the fifth frequency band is B40, and the sixth frequency band is B66. Or the first frequency band is B1, the second frequency band is B3, the third frequency band is B7, the fourth frequency band is B25, the fifth frequency band is B41, and the sixth frequency band is B66. Of course, in practical applications, the first frequency band, the second frequency band, the third frequency band, the fourth frequency band, the fifth frequency band, and the sixth frequency band may be other frequency bands, and the embodiment of the disclosure is not limited thereto.

The phase shift unit 150 may include a plurality of phase shifters 151, a phase shifter 151 may be disposed between the quadplexer 131 and the second switch unit 1010, the phase shifter 151 is connected to the second switch unit 1010 and a first end of the quadplexer 131, a signal received by the antenna port 120 is tuned by the phase shifter 151, and the first band downlink signal and the second band downlink signal are transmitted to the quadplexer 131. A phase shifter 151 is disposed between the first filter 141 and the second switch unit 1010, a signal received by the antenna port 120 is tuned by the phase shifter 151, and a downlink signal in the third frequency band is transmitted to the first filter 141. A phase shifter 151 is disposed between the second filter 142 and the second switch unit 1010, and the signal received by the antenna port 120 is tuned by the phase shifter 151, and the fourth frequency band downlink signal is transmitted to the second filter 142. A phase shifter 151 is disposed between the third filter 143 and the second switch unit 1010, and the signal received by the antenna port 120 is tuned by the phase shifter 151, and the fifth frequency band downlink signal is transmitted to the third filter 143. A phase shifter 151 is disposed between the fourth filter 144 and the second switch unit 1010, and the signal received by the antenna port 120 is tuned by the phase shifter 151, and the sixth frequency band downlink signal is transmitted to the fourth filter 144.

The second switch unit 1010 may be a multi-way switch, and the multi-way switch may include an input end and a plurality of output ends, the input end of the multi-way switch is connected to the antenna port 120, and the output ends of the multi-way switch are respectively connected to one phase shifter 151. The plurality of paths in the second switching unit 1010 may be simultaneously turned on or the plurality of paths in the second switching unit 1010 may be partially turned on.

Further, the second switch unit 1010 has a test output terminal among a plurality of output terminals, and the test output terminal may be connected to an antenna test pin disposed on the package housing 110, and transmit the downlink signal of the antenna to an external test device through the antenna test pin.

For example, the second switching unit 1010 may include a plurality of MOS transistors, first ends of the MOS transistors may be connected to the antenna port 120, second ends of the MOS transistors are respectively connected to the phase shifters 151 and the antenna test pins, and control ends of the MOS transistors are respectively connected to the conduction control signals. Each MOS transistor is turned on according to a signal received by the control terminal, so as to transmit a signal received by the antenna to the corresponding phase shifter 151 or the antenna test pin.

A coupler 1020 may be disposed between the second switch unit 1010 and the antenna port 120, or the coupler 1020 may also be disposed between the antenna port 120 and the antenna, that is, the antenna coupler 1020 may be disposed outside the radio frequency front end module, which is not specifically limited in this embodiment of the disclosure.

The output unit 160 includes: a first low noise amplifier 161, a second low noise amplifier 162, a third low noise amplifier 163, and a fourth low noise amplifier 164. The first low noise amplifier 161 is connected to the multiplexer unit 130 and the fourth filter 144, and the first low noise amplifier 161 is configured to amplify and output the first band downlink signal and the fourth band downlink signal. The second low noise amplifier 162 is electrically connected to the multiplexer unit 130 and the second filter 142, and the second low noise amplifier 162 is configured to amplify and output the second band downlink signal and the third band downlink signal. The third low noise amplifier 163 is connected to the first filter 141, and the third low noise amplifier 163 amplifies and outputs the third band downlink signal. The fourth low noise amplifier 164 is electrically connected to the third filter 143, and the fourth low noise amplifier 164 is configured to amplify and output the fifth frequency band downlink signal.

The first low noise amplifier 161 is connected to the first sub-end of the quadrupler 131 and the fourth filter 144, and the first low noise amplifier 161 is configured to receive the first frequency band downlink signal and the sixth frequency band downlink signal, amplify the first frequency band downlink signal, and output the amplified first frequency band downlink signal. The second low noise amplifier 162 is connected to the fourth sub-terminal of the quadrupler 131 and the second filter 142, and the second low noise amplifier 162 is configured to receive the second frequency band downlink signal and the third frequency band downlink signal, amplify the second frequency band downlink signal and the third frequency band downlink signal, and output the amplified signals.

The output unit 160 provided by the embodiment of the present disclosure may further include a plurality of short-circuit switches, and the plurality of short-circuit switches are respectively connected in parallel to a low noise amplifier. For example, the output unit 160 may further include a first short switch 165, a second short switch 166, a third short switch 167, and a fourth short switch 168. The first short switch 165 is connected in parallel to the first low noise amplifier, the second short switch 166 is connected in parallel to the second low noise amplifier, the third short switch 167 is connected in parallel to the third low noise amplifier, and the fourth short switch 168 is connected in parallel to the fourth low noise amplifier 164.

The short-circuit switch can comprise an MOS (metal oxide semiconductor) tube, the first section and the second end of the MOS tube are respectively connected to the two ends of the corresponding low-noise amplifier, and the control end of the MOS tube can be connected with a short-circuit control signal. A short control pin may be disposed on the package body 110, and a control terminal of the MOS transistor is connected to the short control pin.

It should be noted that the MOS transistors in the embodiments of the present disclosure each have a first terminal, a second terminal, and a control terminal. The first end can be a source electrode of the MOS tube, the second end can be a drain electrode of the MOS tube, and the control end can be a grid electrode of the MOS tube; or the first terminal may be a drain of the MOS transistor, the second terminal may be a source of the MOS transistor, and the control terminal may be a gate of the MOS transistor. The MOS transistor provided in the embodiment of the present disclosure may be an N-type or a P-type, and may be an enhancement type or a depletion type, and the like, which is not specifically limited in the embodiment of the present disclosure.

The output unit 160 may further include a multiplexer 169, a plurality of inputs of the multiplexer 169 may be electrically connected to the first low noise amplifier 161, the second low noise amplifier 162, the third low noise amplifier 163, and the fourth low noise amplifier 164, respectively, and an output of the multiplexer 169 may be connected to a plurality of output pins, respectively, for selectively outputting signals,

the output switch unit 170 may include a first single-pole-three-throw switch 171, a second single-pole-three-throw switch 172, a third single-pole-three-throw switch 173, and a fourth single-pole-three-throw switch 174. The common terminal of the first single-pole triple-throw switch 171 is connected to the first low noise amplifier 161, the first throw terminal of the first single-pole triple-throw switch 171 may be connected to the sixth frequency band auxiliary interface disposed in the package housing 110, the second throw terminal may be connected to the first sub-terminal of the quadplexer 131, and the third throw terminal may be connected to the fourth filter 144. When the common terminal and the first throw terminal of the first single-pole three-throw switch 171 are conducted, a signal of the sixth frequency band auxiliary interface is transmitted to the first low noise amplifier, when the common terminal and the second throw terminal of the first single-pole three-throw switch 171 are conducted, a first frequency band downlink signal is transmitted to the first low noise amplifier, and when the common terminal and the third throw terminal of the first single-pole three-throw switch 171 are conducted, a sixth frequency band downlink signal is transmitted to the first low noise amplifier.

A common terminal of the second single-pole-three-throw switch 172 is connected to the second low noise amplifier 162, a first throw terminal of the second single-pole-three-throw switch 172 may be connected to a third band auxiliary interface disposed in the package housing 110, a second throw terminal may be connected to a fourth sub-terminal of the quadplexer 131, and a third throw terminal may be connected to the second filter 142. When the common terminal and the first throw terminal of the second single-pole three-throw switch 172 are turned on, the signal of the third band auxiliary interface is transmitted to the second low noise amplifier, when the common terminal and the second throw terminal of the second single-pole three-throw switch 172 are turned on, the downlink signal of the second band is transmitted to the second low noise amplifier, and when the common terminal and the third throw terminal of the second single-pole three-throw switch 172 are turned on, the downlink signal of the fourth band is transmitted to the second low noise amplifier.

The common terminal of the third single-pole-three-throw switch 173 is connected to the third low noise amplifier 163, the first throw terminal of the third single-pole-three-throw switch 173 may be connected to the third band auxiliary interface disposed in the package housing 110, the second throw terminal may be connected to the first filter 141, and the third throw terminal may be connected to the downstream signal of another band (e.g., B41) in a standby manner. When the common terminal and the first throw terminal of the third single-pole-three-throw switch 173 are turned on, the signal of the third band auxiliary interface is transmitted to the third low noise amplifier, when the common terminal and the second throw terminal of the third single-pole-three-throw switch 173 are turned on, the downlink signal of the third band is transmitted to the third low noise amplifier, and when the common terminal and the third throw terminal of the first single-pole-three-throw switch 171 are turned on, the standby signal is transmitted to the third low noise amplifier.

The common terminal of the fourth single-pole-three-throw switch 174 is connected to the fourth low noise amplifier 164, the first throw terminal of the fourth single-pole-three-throw switch 174 may be connected to an auxiliary interface disposed at a standby frequency band (e.g., B30) of the package housing 110, the second throw terminal may be connected to the third filter 143, and the third throw terminal may be left idle for standby. When the common terminal of the first single-pole triple-throw switch 173 and the second throw terminal are conducted, the downlink signal of the fifth frequency band is transmitted to the fourth low-noise amplifier, and when the common terminal of the first single-pole triple-throw switch 171 and the third throw terminal are conducted, the fourth low-noise amplifier is idle.

The package housing 110 may include a carrier and a package layer, a wafer is disposed on the carrier, and the multiplexer unit 130, the receiving unit 140, the phase shifting unit 150, the output unit 160, the first switch unit 190, the second switch unit 1010, the output switch unit 170, the power amplifier 181, and other devices may be disposed on the wafer. In the embodiment of the disclosure, the various pins may be connection pads or connection interfaces, and the various pins may be disposed on the carrier board, and the various pins may be connected to corresponding devices on the wafer through the via holes and the wires.

The rf front-end module according to the embodiment of the present disclosure receives the first frequency band uplink signal and the second frequency band downlink signal through the multiplexer disposed in the package housing 110, receives the third frequency band downlink signal through the receiving unit 140, and the phase shifting unit 150 adjusts the phase of the signal passing through the antenna port 120, thereby avoiding mutual interference of the signals, achieving transmission of the first frequency band uplink signal and reception of the second frequency band downlink signal and the third frequency band downlink signal through one antenna, avoiding externally hanging the multiplexer on the rf front-end module, and saving the space on the motherboard to a certain extent.

In addition, in the embodiment of the present disclosure, the first frequency band uplink signal and the second frequency band uplink signal share the power amplifier 181, so that the number of the power amplifiers 181 on the radio frequency front end module can be reduced, thereby saving one bare chip on a wafer, facilitating reduction of the cost of the radio frequency front end module, and reducing the cost of the electronic device. Through adopting quadruplex ware 131 to realize the receiving and dispatching of first frequency channel and second frequency channel radio frequency signal, can solve the big problem of sextuple ware insertion loss among the correlation technique to reduce the insertion loss of radio frequency front end module, and can reduce the cost of radio frequency front end module through adopting quadruplex ware 131.

It should be noted that, in the drawings of the exemplary embodiment of the present disclosure, the first frequency band uplink signal is tx (bx), the first frequency band downlink signal is rx (bx), the second frequency band uplink signal is tx (by), the second frequency band downlink signal is rx (by), the third frequency band downlink signal is rx (bz), the fourth frequency band downlink signal is rx (bm), the fifth frequency band downlink signal is rx (bn), the sixth frequency band downlink signal is rx (bj), the third frequency band auxiliary pin aux (bz), the fourth frequency band auxiliary pin aux (bm), the fifth frequency band auxiliary pin aux (bn), and the sixth frequency band auxiliary pin aux (bj). The frequency band identifiers B and N are not distinguished in the drawing, and since the frequencies of the corresponding frequency bands are consistent, B (lte) and N (nr) can be interchanged. Of course, the above symbols are only used as labels, and the embodiments of the present disclosure are not limited thereto.

The exemplary embodiments of the present disclosure also provide a radio frequency assembly 1000, as shown in fig. 9, the radio frequency assembly includes: the rf front end module 100 and the first antenna 200 described above. The radio frequency front end module includes: an antenna port 120, a multiplexer unit 130, a receiving unit 140, a phase shifting unit 150, and an output unit 160; the antenna port 120 is for connection to a second antenna 400200; the multiplexer unit 130 is disposed in the carrying portion, and the multiplexer unit 130 is configured to receive the first frequency band uplink signal and the second frequency band downlink signal; the receiving unit 140 is configured to receive a third frequency band downlink signal; the phase shift unit 150 is respectively connected to the multiplexer unit 130, the receiving unit 140 and the antenna port 120, and the phase shift unit 150 is configured to adjust phases of a plurality of signals flowing through the antenna port 120; the output unit 160 is respectively connected to the multiplexer unit 130 and the receiving unit 140, and the output unit 160 is configured to amplify and output the second band downlink signal and the third band downlink signal. The first frequency band, the second frequency band and the third frequency band are different. The first antenna 200 is connected to the antenna port 120 in the rf front-end module.

Further, as shown in fig. 10, the radio frequency assembly 1000 provided by the embodiment of the present disclosure may further include: a second antenna 400, a second rf front-end module 300, a third antenna 600, a third rf front-end module 500, a fourth antenna 800, and a fourth rf front-end module 700. The second antenna 400 is configured to receive the first frequency band downlink signal and the second frequency band downlink signal and transmit a third frequency band uplink signal; the second rf front end module 300 is connected to the second antenna 400; the third antenna 600 is configured to receive a first frequency band downlink signal, a second frequency band downlink signal, and a third frequency band downlink signal; the third rf front-end module 500 is connected to the third antenna 600; the fourth antenna 800 is configured to receive the first frequency band downlink signal, the second frequency band downlink signal, and the third frequency band downlink signal. The fourth rf front-end module 700 is connected to the fourth antenna 800.

The second rf front-end module 300 may be a power amplifier 181 module (LPAMiD, LNA-modem with integrated multiplexer) integrated with a low noise amplifier and a duplexer, the third rf front-end module 500 may be a diversity reception rf front-end module (DRx), and the fourth rf front-end module 700 may be a multiple-input multiple-output main set reception module (PRx MIMO).

The radio frequency module 1000 provided by the embodiment of the present disclosure includes a radio frequency front end module 100, which receives an uplink signal of a first frequency band and a downlink signal of a second frequency band through a multiplexer disposed in a package housing 110, receives a downlink signal of a third frequency band through a receiving unit 140, and adjusts a phase of a signal passing through an antenna port 120 by a phase shifting unit 150, thereby avoiding mutual interference of the signals, achieving transmission of the uplink signal of the first frequency band and reception of the downlink signal of the second frequency band and the downlink signal of the third frequency band through one antenna, avoiding a hexaplexer externally attached to the radio frequency front end module, and being capable of saving a space on a main board to a certain extent.

The exemplary embodiment of the present disclosure also provides an electronic device, as shown in fig. 11, the electronic device is the radio frequency assembly 1000 described above.

The electronic device in the embodiment of the present disclosure may be an electronic device with a wireless communication function, such as a mobile phone, a tablet computer, an electronic reader, a navigator, a vehicle-mounted computer, a notebook computer, a wearable device, and an intelligent appliance. The following describes the electronic device in detail by taking the electronic device as a mobile phone as an example:

the electronic device provided by the embodiment of the present disclosure further includes a display screen 10, a main board 30, a battery 40, and a rear cover 50. Wherein, the display screen 10 is installed on the frame 20 to form a display surface of the terminal device, and the display screen 10 serves as a front shell of the electronic device. The rear cover 50 is adhered to the frame by double-sided adhesive, and the display screen 10, the frame 20 and the rear cover 50 form an accommodating space for accommodating other electronic components or functional modules of the electronic device. Meanwhile, the display screen 10 forms a display surface of the electronic device for displaying information such as images, texts, and the like. The Display screen 10 may be a Liquid Crystal Display (LCD) or an organic light-Emitting Diode (OLED) Display screen.

A glass cover may be provided over the display screen 10. Wherein, the glass cover plate can cover the display screen 10 to protect the display screen 10 and prevent the display screen 10 from being scratched or damaged by water.

The display screen 10 may include a display area 11 and a non-display area 12. The display area 11 performs, among other things, a display function of the display screen 10 for displaying information such as images, text, etc. The non-display area 12 does not display information. The non-display area 12 may be used to set functional modules such as a camera, a receiver, a proximity sensor, and the like. In some embodiments, the non-display area 12 may include at least one area located at upper and lower portions of the display area 11.

The display screen 10 may be a full-face screen. At this time, the display screen 10 may display information in a full screen, so that the electronic apparatus has a large screen occupation ratio. The display screen 10 comprises only the display area 11 and no non-display area. At this moment, functional modules such as camera, proximity sensor among the electronic equipment can hide in display screen 10 below, and electronic equipment's fingerprint identification module can set up the back at electronic equipment.

The bezel 20 may be a hollow frame structure. The material of the frame 20 may include metal or plastic. The main board 30 is installed in the accommodating space. For example, the main board 30 may be mounted on the frame 20 and accommodated in the accommodating space together with the frame 20. The main board 30 is provided with a grounding point to realize grounding of the main board 30. One or more of the functional modules such as a motor, a microphone, a speaker, a receiver, an earphone interface, a universal serial bus interface (USB interface), a camera, a proximity sensor, an ambient light sensor, a gyroscope, and a processor may be integrated on the main board 30. Meanwhile, the display screen 10 may be electrically connected to the main board 30.

The main board 30 is provided with a display control circuit. The display control circuit outputs an electric signal to the display screen 10 to control the display screen 10 to display information.

The battery 40 is mounted inside the receiving space. For example, the battery 40 may be mounted on the frame 20 and be accommodated in the accommodating space together with the frame 20. The battery 40 may be electrically connected to the motherboard 30 to enable the battery 40 to power the electronic device. The main board 30 may be provided with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 40 to the various electronic components in the electronic device.

The rear cover 50 serves to form an outer contour of the electronic apparatus. The rear cover 50 may be integrally formed. In the forming process of the rear cover 50, a rear camera hole, a fingerprint identification module mounting hole and the like can be formed in the rear cover 50.

The first antenna 200, the second antenna 400, the third antenna 600, and the fourth antenna 800 may be disposed on the main board 30, the frame 20, or the rear cover 20 of the electronic device. When the terminal device adopts a metal frame, the first antenna 200, the second antenna 400, the third antenna 600, and the fourth antenna 800 may be metal branches disposed on the metal frame 20. When the terminal device adopts the metal rear cover 50, the first antenna 200, the second antenna 400, the third antenna 600, and the fourth antenna 800 may be metal branches disposed on the metal rear cover 50. When the terminal device adopts a non-metal housing (such as a plastic housing, a glass housing, or a ceramic housing), the first antenna 200, the second antenna 400, the third antenna 600, and the fourth antenna 800 may be disposed inside the terminal device, for example, the first antenna 200, the second antenna 400, the third antenna 600, and the fourth antenna 800 may be disposed on the main board 30 of the terminal device. The rf front-end module 100, the second rf front-end module 300, the third rf front-end module 500 and the fourth rf front-end module 700 may be disposed on the motherboard 30.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is to be limited only by the terms of the appended claims.

Claims

1. The utility model provides a radio frequency front end module which characterized in that, radio frequency front end module is used for realizing the signal communication of at least three different frequency channels under 4G and 5G new empty mouth dual connectivity mode, radio frequency front end module includes:

an antenna port for connecting an antenna;

the second switch unit is connected with the antenna port and can be conducted in multiple paths;

a phase shifting unit including a plurality of phase shifters, the plurality of phase shifters being respectively connected to the second switches, the plurality of phase shifters being configured to adjust phases of a plurality of path signals of the second switch unit so that phases of signals of different frequency bands are different;

the multiplexer unit is connected with the phase shifter to receive the second frequency band downlink signal transmitted by the phase shifter and transmit the first frequency band uplink signal to the second switch unit through the phase shifter;

the receiving unit is connected with the phase shifter to receive the third frequency band downlink signal transmitted by the phase shifter and filter the third frequency band downlink signal;

an output switch unit connected to the receiving unit;

and the output unit is electrically connected with the multiplexer unit and the output switch unit respectively, the output switch unit is used for controlling the receiving unit to transmit signals to the output unit, and the output unit is used for amplifying and outputting the second frequency band downlink signals and the third frequency band downlink signals.

2. The radio frequency front end module of claim 1, wherein the receiving unit comprises:

and the first filter is electrically connected with the phase shifting unit and the output unit and is used for receiving the third frequency band downlink signal transmitted by the phase shifting unit and filtering the third frequency band downlink signal and transmitting the filtered third frequency band downlink signal to the output unit.

3. The radio frequency front end module of claim 2, wherein the first frequency band is B1, the second frequency band is B3, and the third frequency band is any one of N7, N40, and N41.

4. The rf front-end module of claim 2, wherein the output unit comprises:

the first low noise amplifier is electrically connected with the multiplexer unit and is used for amplifying and outputting the first frequency band downlink signal;

the second low noise amplifier is electrically connected with the multiplexer unit and is used for amplifying and outputting the downlink signal of the second frequency band;

and the third low-noise amplifier is electrically connected with the first filter and used for amplifying and outputting the downlink signal of the third frequency band.

5. The rf front-end module of claim 2, wherein the receiving unit is further configured to receive a fourth frequency band downlink signal, a fifth frequency band downlink signal, and a sixth frequency band downlink signal, and the receiving unit further includes:

the second filter is electrically connected with the phase shifting unit and the output unit and is used for receiving the downlink signal of the fourth frequency band transmitted by the phase shifting unit and filtering the downlink signal of the fourth frequency band and transmitting the filtered downlink signal of the fourth frequency band to the output unit;

the third filter is electrically connected with the phase shifting unit and the output unit, and is used for receiving the downlink signal of the fifth frequency band transmitted by the phase shifting unit, filtering the downlink signal of the fifth frequency band, and transmitting the filtered downlink signal of the fifth frequency band to the output unit;

and the fourth filter is electrically connected with the phase shifting unit and the output unit and is used for receiving the downlink signal of the sixth frequency band transmitted by the phase shifting unit and transmitting the downlink signal of the sixth frequency band to the output unit after filtering.

6. The radio frequency front end module of claim 5, wherein the first frequency band is B1, the second frequency band is B3, the third frequency band is B7, the fourth frequency band is B25, the fifth frequency band is B40, and the sixth frequency band is B66.

7. The RF front-end module of claim 1, wherein the multiplexer unit comprises:

the four-station device comprises a first end and a second end, the first end of the four-station device is connected with the phase shifting unit, the second end of the four-station device comprises a first sub-end, a second sub-end, a third sub-end and a fourth sub-end, the first sub-end is electrically connected with the output unit, the first sub-end is used for transmitting a first frequency band downlink signal to the output unit, the second sub-end receives a first frequency band uplink signal and transmits the first frequency band uplink signal to the first end, the third sub-end receives a second frequency band uplink signal and transmits the second frequency band uplink signal to the first end, the fourth sub-end is electrically connected with the output unit, and the fourth sub-end is used for transmitting the second frequency band downlink signal to the output unit.

8. The radio frequency front end module of claim 7, wherein the radio frequency front end module further comprises:

the power amplification unit is used for amplifying the uplink signals of the first frequency band and the uplink signals of the second frequency band;

the input end of the first switch unit is connected with the power amplification unit, the output end of the first switch unit is connected with the second sub-end and the third sub-end of the quadruplex, when the power amplification unit receives a first frequency band uplink signal, the first switch unit transmits the first frequency band uplink signal to the second sub-end of the quadruplex, and when the power amplification unit receives a second frequency band uplink signal, the first switch unit transmits the second frequency band uplink signal to the third sub-end of the quadruplex.

9. The rf front-end module of claim 1, further comprising:

the packaging shell is provided with a bearing part, and the antenna port, the phase shifting unit, the multiplexer unit, the receiving unit and the output unit are arranged on the bearing part.

10. A radio frequency assembly, the radio frequency assembly comprising:

the radio frequency front end module of any of claims 1-9;

11. The radio frequency assembly of claim 10, further comprising:

the second antenna is used for receiving the first frequency band downlink signal and the second frequency band downlink signal and transmitting a third frequency band uplink signal;

the second radio frequency front-end module is connected with the second antenna;

the third antenna is used for receiving the first frequency band downlink signal, the second frequency band downlink signal and the third frequency band downlink signal;

the third radio frequency front end module is connected with the third antenna;

the fourth antenna is used for receiving the first frequency band downlink signal, the second frequency band downlink signal and the third frequency band downlink signal;

and the fourth radio frequency front-end module is connected with the fourth antenna.

12. An electronic device, characterized in that it comprises a radio frequency assembly according to claim 10 or 11.