Abstract: Provided are a radio frequency (RF) system, an impedance tuning method, and an electronic device. The RF system includes a first RF path, a second RF path, a first power detector, and a processor. The first RF path includes a first coupler and a first antenna radiator. The second RF path includes a second antenna radiator. The first power detector is electrically connected with the first coupler, and used to obtain, through the first coupler, a first coupled power received by the first antenna radiator from the second antenna radiator when the second antenna radiator transmits an antenna signal. The processor is configured to obtain a first voltage standing wave ratio (VSWR) based on the first coupled power, and generate, when the first VSWR is outside a preset VSWR range, a first impedance adjustment instruction used to make the first VSWR fall within the preset VSWR range.

Abstract: An electrical connector assembly is provided and includes an insulative outer housing and a terminal module fixed to the insulative outer housing. The insulative outer housing includes a main body and two locking portions which are respectively provided at two sides of the main body, the two locking portions are used to lock the main body on a substrate. A front end of the main body is formed with a receiving cavity which extends along a longitudinal direction. The terminal module is provided in the rear of the receiving cavity, the terminal module includes a plurality of conductive terminals and a module housing which is used to fix the plurality of conductive terminals. The plurality of conductive terminals protrude into the receiving cavity and are arranged as two rows up and down. A stopping portion extends in the middle of the receiving cavity of the main body along a transverse direction, two ends of the stopping portion are respectively connected to two inner side walls of the receiving cavity.

Abstract: The present application relates to a radio frequency system and a communication device. The radio frequency system may include: a transceiver circuit; a receiving circuit; a first coupling circuit, configured to support coupling of a transmit signal on a transceiver path and coupling of a reflected signal of the transmit signal, and output a first forward coupled signal and a first backward coupled signal; a second coupling circuit, configured to selectively turn on the receiving path and the coupling path, support coupling of the first forward coupled signal and coupling of the reflected signal, and output a second forward coupled signal and a second backward coupled signal; and, a processing circuit, configured to determine second impedance information of the receiving path according to the second forward coupled signal and the second backward coupled signal.

Abstract: Provided are a RF front-end device, a RF system and an electronic device. The RF front-end device is configured with an antenna terminal, a control terminal for receiving multiple control signals, and multiple input terminals for receiving multiple RF signals. The RF front-end device includes: a first switch unit having multiple first terminals connected to the multiple input terminals respectively; a power amplification unit, having an input terminal connected to a second terminal of the first switch unit, and an output terminal connected to the antenna terminal; and a control unit connected to the control terminal and the power amplification unit, and configured to control, based on a received target control signal, the power amplification unit to perform power amplification processing on a received target RF signal. The target control signal is one of the multiple control signals, and frequency bands of the multiple RF signals are different.

Abstract: Provided are a communication device and a communication control method. The communication device includes a radio frequency transceiver, multiple radio frequency modules, a radio frequency power supply, and an electric power supply. When the communication device supports a standalone mode, the radio frequency power supply outputs a radio frequency voltage to individual radio frequency modules ready for transmission that are conductively connected to one transmission channel group. When the communication device supports a combined mode of frequency bands of different transmission channel groups, the radio frequency power supply outputs the radio frequency voltage to a radio frequency module ready for transmission that are conductively connected to one transmission channel group, and the electric power supply outputs a power supply voltage to other radio frequency modules ready for transmission that are conductively connected to another transmission channel group.

Abstract: A radio frequency system and an electronic device. The radio frequency system includes a radio frequency transceiver module, a radio frequency front-end module, at least one antenna radiator, and at least one first low-noise amplification module. The radio frequency front-end module includes at least one transmission path and at least one reception path. An end of the transmission path is electrically connected to the radio frequency transceiver module, and an end of the reception path is electrically connected to the radio frequency transceiver module. The first low-noise amplification module is connected between the antenna radiator and the reception path. When the first low-noise amplification module is in a first working state, the first low-noise amplification module is conductive between the antenna radiator and the reception path, and when the first low-noise amplification module is in a first bypass state, it is short-circuited between the antenna radiator and the reception path.

Abstract: Provided is a RF system and an electronic device. The RF system includes first and second RF transceiver modules, first and second switch units, a first front-end circuit, first and second filters, and first and second antenna radiators. The first and second RF transceiver modules are respectively configured for transmission and receipt a first network signal of a first frequency band and a second network signal of a second frequency band. Two selection terminals of the first switch unit are electrically connected to the first and second RF transceiver modules respectively. The first front-end circuit is electrically connected between the first switch unit and the first filter, and between the first switch unit and the second filter. The first antenna radiator is electrically connected to the other terminal of the first filter. The second antenna radiator is electrically connected to the other terminal of the second filter.

Abstract: The invention provides a surface treatment method for a magnesium alloy hub. The process includes: cleaning a to-be-treated surface of the magnesium alloy hub; blackening the cleaned to-be-treated surface; and laser cladding the blackened to-be-treated surface, wherein a laser cladding mode is a synchronous powder feeding mode, and a coating material is chromium. According to the surface treatment method for the magnesium alloy hub, air holes can be avoided.

Abstract: An electrical connector is provided and includes: a first insulative housing, a front end of the first insulative housing is provided with a first mating cavity; a plurality of first conductive terminals which are arranged in the first mating cavity; a plurality of wires which are correspondingly connected to rear ends of the plurality of first conductive terminals; a protect housing which is provided to a rear end of the first insulative housing; a ribbon sealing member which wraps on an outer peripheral of the plurality of wires to seal gaps between respective adjacent wires; wherein, one end of the ribbon sealing member is sealed in the protect housing, the other end of the ribbon sealing member extends outwardly to be exposed out from the protect housing.

Abstract: Provided are a radio frequency module, a power supply control method, and a communication device. The radio frequency module includes at least two power modules, at least two transmission groups and a power supply control circuit. Each transmission group includes at least two power amplifier modules, each power amplifier module is switchably connected to any one of the at least two power modules, and individual power amplifier modules in a same transmission group are configured to perform power amplification on received radio frequency signals under power supply of a same power module. Working statuses of individual power amplifier modules are acquired by the power supply control circuit, and an abnormal transmission group where an abnormal power amplifier module is located may be determined therefrom, and each normal power amplifier module in the abnormal transmission group is controlled to switch to being connected with a target power module.

Abstract: Provided are a radio frequency assembly and a communication device. The radio frequency assembly includes a plurality of power supply modules, a radio frequency transceiver, and a plurality of radio frequency modules. The radio frequency transceiver includes a first group of transmit channels and a second group of transmit channels, and at least one target radio frequency module among the plurality of radio frequency modules can be switchably connected to any power supply module and any radio frequency channel. Different radio frequency module is configured to support power amplification for radio frequency signals at different frequency bands, two radio frequency modules operating simultaneously among the plurality of radio frequency modules have different target power modules, and the two radio frequency modules operating simultaneously have different target radio frequency channels.

Abstract: A multimode multiband power amplifier (MMPA), a switching method for a MMPA, and a radio frequency front-end (RFFE) device. The MMPA includes: a mid-band (MB) signal transmitting channel, configured to amplify an MB radio-frequency signal input by the radio frequency (RF) Transceiver and output the amplified MB radio-frequency signal, and a low-band (LB) signal transmitting channel, configured to amplify a LB radio-frequency signal input by the RF Transceiver and output the amplified LB radio-frequency signal. The MB signal transmitting channel includes a first switch, and is configured to be connected to a first MB output channel and a second MB output channel of the RF Transceiver through the first switch respectively. The LB signal transmitting channel includes a second switch, and is configured to be connected to a first LB output channel and a second LB output channel of the RF Transceiver through the second switch respectively.

Abstract: A RF module and an electronic device. The RF module includes a RF transceiver module; a first antenna configured to transmit a first transmission signal, and receive a first main reception signal and a second diversity reception signal; a first triplexer connected to the RF transceiver module and the first antenna, and being configured to isolate the first transmission signal, the first main reception signal, and the second diversity reception signal; a second antenna configured to transmit a second transmission signal, receive a second main reception signal and a first diversity reception signal, and a frequency band of the first transmission signal being different from that of the second transmission signal; and a second triplexer connected to the RF transceiver module and the second antenna, and being configured to isolate the second transmission signal, the second main reception signal, and the first diversity reception signal.

Abstract: A radio-frequency system is provided, which includes a radio-frequency transceiver and a radio-frequency transceiving circuit connected to the radio-frequency transceiver. The radio-frequency transceiving circuit includes a first transceiving channel and a second transceiving channel; the first transceiving channel includes a first transceiving module, the first transceiving module is connected to a first antenna; and the second transceiving channel includes a second transceiving module, and the second transceiving module is connected to a second antenna.

Abstract: Provided are a radio frequency front-end module, an antenna system and an electronic device. The radio frequency front-end module includes an antenna switch module connected with a first antenna interface, a first amplifier unit, a second amplifier unit, and a first switch unit. The first amplifier unit is configured to amplify a signal at a first frequency band and transmit the signal to the antenna switch module. The first switch unit is connected with each of a second antenna interface and the antenna switch module. The second amplifier unit is configured to amplify a signal at a second frequency band and transmit the signal to the first switch unit. The first switch unit is configured to transmit the signal at the second frequency band to the second antenna interface or the antenna switch module.

Abstract: The present disclosure relates to a radio frequency assembly and an electronic device. The radio frequency assembly includes: a radio frequency transceiver module, a first antenna, a second antenna, a first duplexer, and a second duplexer; the radio frequency transceiver module is configured to transmit and receive radio frequency signals; the first antenna is configured to transmit a first transmission signal and receive a first primary reception signal; the first duplexer is configured to insulate the first transmission signal from the first primary reception signal; the second antenna is configured to transmit a second transmission signal and receive a second primary reception signal; the second duplexer is configured to insulate the second transmission signal from the second primary reception signal.

Abstract: The invention provides a surface treatment method for a magnesium alloy hub. The process includes: cleaning a to-be-treated surface of the magnesium alloy hub; blackening the cleaned to-be-treated surface; and laser cladding the blackened to-be-treated surface, wherein a laser cladding mode is a synchronous powder feeding mode, and a coating material is chromium. According to the surface treatment method for the magnesium alloy hub, air holes can be avoided.

Abstract: A RF module and an electronic device. The RF module includes a RF transceiver module; a first antenna configured to transmit a first transmission signal, and receive a first main reception signal and a second diversity reception signal; a first triplexer connected to the RF transceiver module and the first antenna, and being configured to isolate the first transmission signal, the first main reception signal, and the second diversity reception signal; a second antenna configured to transmit a second transmission signal, receive a second main reception signal and a first diversity reception signal, and a frequency band of the first transmission signal being different from that of the second transmission signal; and a second triplexer connected to the RF transceiver module and the second antenna, and being configured to isolate the second transmission signal, the second main reception signal, and the first diversity reception signal.