Abstract: A Bluetooth earphone includes an antenna and a circuit board. The circuit board includes a first grounding branch and a second grounding branch. The first grounding branch is connected in series to a first switch, and the second grounding branch is connected in series to a second switch. When the first switch is on, the first grounding branch serves as a current return path of the antenna. When the second switch is on, the second grounding branch serves as a current return path of the antenna. By controlling the on or off state of the first switch and the second switch, the Bluetooth earphone can switch ground structures of the antenna and select different current return paths for the antenna, to switch radiation patterns of the antenna.

Abstract: A wireless earphone, including an earbud part, an earbud stem part, and an antenna unit disposed in the earbud part and the earbud stem part. The antenna unit includes: a first antenna radiator having a first end fed by a first feeding unit and a second antenna radiator having a second end fed by a second feeding unit, where the second end and the first end are disposed at intervals; and a third antenna radiator having a first ground point and a third end. At least a part of the third antenna radiator is located in the earbud part. One of the first and second antenna radiators is located in the earbud part, and the other is located in the earbud stem part; or at least a part of the first and second antenna radiators both are located in the earbud stem part.

Abstract: An antenna structure includes a first radiator, a first feed unit, and a second feed unit. The first radiator includes a first feed point and a second feed point. The first feed unit feeds the antenna structure at the first feed point, and the second feed unit feeds the antenna structure at the second feed point. The first feed point is disposed in a central region. The second feed point is disposed between the central region and an end of the first radiator.

Abstract: In an embodiment a wireless earphone includes an earbud portion having a speaker module, a stalk portion having a battery, wherein the earbud portion is connected to one end of the stalk portion, a circuit board and a first antenna being a slot antenna, wherein the circuit board extends from the earbud portion to an end of the stalk portion away from the earbud portion, wherein the circuit board is connected to the speaker module and the battery, wherein the circuit board comprises a reference ground, the reference ground extending from one end of the circuit board to another end of the circuit board, and wherein a slot is disposed on the reference ground forming a radiator of the slot antenna, the slot being located in the stalk portion and extending along a length direction of the stalk portion.

Abstract: A Bluetooth earphone includes an antenna and a circuit board. The circuit board includes a first grounding branch and a second grounding branch. The first grounding branch is connected in series to a first switch, and the second grounding branch is connected in series to a second switch. When the first switch is on, the first grounding branch serves as a current return path of the antenna. When the second switch is on, the second grounding branch serves as a current return path of the antenna. By controlling the on or off state of the first switch and the second switch, the Bluetooth earphone can switch ground structures of the antenna and select different current return paths for the antenna, to switch radiation patterns of the antenna.

Abstract: The communication method includes: obtaining a received signal strength indicator RSSI; comparing the obtained RSSI with a predetermined value; determining a Bluetooth transmission link based on a comparison result, where the Bluetooth transmission link includes a first transmission link and a second transmission link, where the first transmission link is a transmission link of an internal power amplifier of a Bluetooth module, and the second transmission link is a transmission link of a combination of the internal power amplifier of the Bluetooth module and an external power amplifier of the Bluetooth module; and transmitting a Bluetooth signal based on the determined Bluetooth transmission link. According to the present invention, the RSSI value of the Bluetooth device is detected, the detected RSSI value is compared with the predetermined value, and the transmission link of the Bluetooth device is determined based on the comparison result.

Abstract: A wireless terminal is disclosed. The wireless terminal includes a first antenna, a second antenna, a printed circuit board, a bracket, and a resonator. The first antenna is located at one side of the printed circuit board. The second antenna is located at another side of the printed circuit board. The printed circuit board functions as a metal ground of the first antenna and the second antenna. The resonator is located on the bracket. A ground point of the resonator is located on the printed circuit board. A clearance exists between the resonator and the printed circuit board.

Abstract: The communication method includes: obtaining a received signal strength indicator RSSI; comparing the obtained RSSI with a predetermined value; determining a Bluetooth transmission link based on a comparison result, where the Bluetooth transmission link includes a first transmission link and a second transmission link, where the first transmission link is a transmission link of an internal power amplifier of a Bluetooth module, and the second transmission link is a transmission link of a combination of the internal power amplifier of the Bluetooth module and an external power amplifier of the Bluetooth module; and transmitting a Bluetooth signal based on the determined Bluetooth transmission link. According to the present invention, the RSSI value of the Bluetooth device is detected, the detected RSSI value is compared with the predetermined value, and the transmission link of the Bluetooth device is determined based on the comparison result.

Abstract: A wireless terminal is disclosed. The wireless terminal includes a first antenna, a second antenna, a printed circuit board, a bracket, and a resonator, where the first antenna is located at one side of the printed circuit board, the second antenna is located at another side of the printed circuit board, the printed circuit board functions as a metal ground of the first antenna and the second antenna, the resonator is located on the bracket, a ground point of the resonator is located on the printed circuit board, and a clearance exists between the resonator and the printed circuit board, the bracket is plastic bracket.

Abstract: A wireless terminal is disclosed. The wireless terminal includes a first antenna, a second antenna, a printed circuit board, a bracket, and a resonator, where the first antenna is located at one side of the printed circuit board, the second antenna is located at another side of the printed circuit board, the printed circuit board functions as a metal ground of the first antenna and the second antenna, the resonator is located on the bracket, a ground point of the resonator is located on the printed circuit board, and a clearance exists between the resonator and the printed circuit board, the bracket is plastic bracket.

Abstract: Embodiments of the present disclosure relate to methods and terminals for improving GPS performance. One example method includes detecting a placement state of the terminal and opening a receiving channel corresponding to the placement state. The receiving channel can be used to receive signals sent by K satellites. A signal receiving channel corresponding to the terminal is selected according to the state of the terminal.

Abstract: A wireless terminal is disclosed. The wireless terminal includes a first antenna, a second antenna, a printed circuit board, a bracket, and a resonator, where the first antenna is located at one side of the printed circuit board, the second antenna is located at another side of the printed circuit board, the printed circuit board functions as a metal ground of the first antenna and the second antenna, the resonator is located on the bracket, a ground point of the resonator is located on the printed circuit board, and a clearance exists between the resonator and the printed circuit board, the bracket is plastic bracket.

Abstract: A wireless terminal is disclosed. The wireless terminal includes a first antenna, a second antenna, a printed circuit board, a bracket, and a resonator, where the first antenna is located at one side of the printed circuit board, the second antenna is located at another side of the printed circuit board, the printed circuit board functions as a metal ground of the first antenna and the second antenna, the resonator is located on the bracket, a ground point of the resonator is located on the printed circuit board, and a clearance exists between the resonator and the printed circuit board. Not only does the wireless terminal improve isolation between multiple antennas, but also the resonator can better radiate energy of the antennas because a clearance exists between the resonator and the PCB.

Abstract: The present invention discloses an antenna and pertains to the field of communications technologies. The antenna includes: a printed circuit board, a first antenna feeding structure, a first antenna loading structure, and a first filter, where the first antenna feeding structure has a grounding pin and a feeding pin, the grounding pin and the feeding pin are separately connected to the printed circuit board, and the first antenna loading structure and a partial structure of the first antenna feeding structure form a coupling structure; and the first antenna loading structure is connected to the first filter, the first filter is connected to the printed circuit board, and the first filter is configured to cut off a low-frequency current. A low-frequency current is cut off by using a filter, so as to implement selective filtering for an antenna loading structure and extend operating bandwidth of the antenna.

Abstract: A method and an apparatus are provided for improving a communication rate, which are used in a terminal working in a multiple-input multiple-output (MIMO) state. The method includes: obtaining strength of a first signal received in a first path connected to a first antenna and strength of a second signal received in a second path connected to a second antenna; and adjusting the first path or/and the second path according to a difference between the strength of the first signal and the strength of the second signal, so as to reduce an unbalance degree between the first path and the second path, thereby improving the communication rate. By adopting the present invention, improvement of a rate of an antenna may be achieved by adjusting a balance between the first and second paths.

Abstract: A wireless terminal is disclosed. The wireless terminal includes a first antenna, a second antenna, a printed circuit board, a bracket, and a resonator, where the first antenna is located at one side of the printed circuit board, the second antenna is located at another side of the printed circuit board, the printed circuit board functions as a metal ground of the first antenna and the second antenna, the resonator is located on the bracket, a ground point of the resonator is located on the printed circuit board, and a clearance exists between the resonator and the printed circuit board. Not only does the wireless terminal improve isolation between multiple antennas, but also the resonator can better radiate energy of the antennas because a clearance exists between the resonator and the PCB.

Abstract: A method and an apparatus are provided for improving a communication rate, which are used in a terminal working in a multiple-input multiple-output (MIMO) state. The method includes: obtaining strength of a first signal received in a first path connected to a first antenna and strength of a second signal received in a second path connected to a second antenna; and adjusting the first path or/and the second path according to a difference between the strength of the first signal and the strength of the second signal, so as to reduce an unbalance degree between the first path and the second path, thereby improving the communication rate. By adopting the present invention, improvement of a rate of an antenna may be achieved by adjusting a balance between the first and second paths.