Abstract: Provided are an RF front-end architecture, an antenna device and a communication terminal. The RF front-end architecture comprises a primary RF front-end module and a secondary RF front-end module. The communication terminal optimizes the RF front-end architecture on the internal antenna device, and is able to work in a multi-antenna working mode to realize the receiving and transmission of multiplex RF signals. The architecture is relatively simple in structure, only two RF front-end modules are needed to realize multiplex transmission and multiplex receiving of RF signals, meanwhile, different frequency band signals which need to be accessed can be flexibly controlled and adjusted. Moreover, the low noise amplifiers in the architecture all support the amplification of multi-band frequency signals, which can ensure the realization of 1T4R, 2T4R and other functions in fewer RF front-end modules, ensure the realization of rich function of the architecture, and reduce the area of the architecture.

Abstract: The radio-frequency differential circuit includes an input balun, an output balun, a first differential amplifying circuit, a second differential amplifying circuit, a first linear feedback circuit and a second linear feedback circuit; the first differential amplifying circuit is arranged between a first output end of the input balun and a first input end of the output balun; the second differential amplifying circuit is arranged between a second output end of the input balun and a second input end of the output balun; a first end of the first linear feedback circuit is connected with the input balun, a second end of the first linear feedback circuit is connected with the first differential amplifying circuit; a first end of the second linear feedback circuit is connected with the input balun, and a second end of the second linear feedback circuit is connected with the second differential amplifying circuit.

Abstract: Provided are a PA output matching circuit, a RF front-end module and a wireless device. The circuit is used for connecting with a first PA output and a second PA output of an output stage of a push-pull PA, and comprises a load balun, a first DC blocking circuit, a second DC blocking circuit, a first feed circuit and a second feed circuit; the main coil of the load balun is provided with a first balun input and a second balun input; the first balun input is connected with the first PA output via the first DC blocking circuit, and the first balun input is connected with the first PA output via the first feed circuit; the second balun input is connected with the second PA output via the second DC blocking circuit, and the second balun input is connected with the second PA output via the second feed circuit.

Abstract: The present disclosure discloses a dockless vehicle-based electric fence control method. The method comprises: demarcating and forming, by a backend server, a non-parking area and/or a riding boundary of a vehicle by using a map engine tool, wherein longitude and latitude coordinates at which the non-parking area and/or the riding boundary is located is stored into a database of the backend server; when ride comes to an end, sending, by a mobile terminal or intelligent hardware installed in a ridden vehicle, the parking position coordinates of a current vehicle to the backend server; and receiving, by the backend server, parking position coordinates of the vehicle, comparing the parking position coordinates of the vehicle with the database, determining whether the parking position coordinates of the current vehicle are located in the non-parking area or beyond the riding boundary, and feeding back a determining result to the mobile terminal and/or the intelligent hardware.

Abstract: The present disclosure discloses a dockless vehicle-based electric fence control method. The method comprises: demarcating and forming, by a backend server, a non-parking area and/or a riding boundary of a vehicle by using a map engine tool, wherein longitude and latitude coordinates at which the non-parking area and/or the riding boundary is located is stored into a database of the backend server; when ride comes to an end, sending, by a mobile terminal or intelligent hardware installed in a ridden vehicle, the parking position coordinates of a current vehicle to the backend server; and receiving, by the backend server, parking position coordinates of the vehicle, comparing the parking position coordinates of the vehicle with the database, determining whether the parking position coordinates of the current vehicle are located in the non-parking area or beyond the riding boundary, and feeding back a determining result to the mobile terminal and/or the intelligent hardware.