A composite right/left-handed transmission line antenna includes a first radiator, a second radiator, and a capacitive matching circuit, where the first radiator is connected to the second radiator, the connected first radiator and second radiator are of a ring shape, and the matching circuit is connected to a feed-in point of the first radiator or the second radiator.

An electronic device is provided that includes a first antenna element that includes a first portion of a housing, and a second antenna element that include a second portion of the housing that is different from the first portion of the housing. The electronic device also includes a memory that stores feed conditions, each for applying a current to one of the first antenna element and the second antenna element. A tuner of the electronic device is controlled such that a first current flows to one of the first antenna element and the second antenna element, based on a first feed condition of the stored feed conditions, and a processor of the electronic device transmits or receives a signal in a specified frequency band based on an electrical path formed through the tuner.

An antenna module including a first antenna and a second antenna close to the first antenna. The second antenna includes an isolation circuit and a second tuning switch controlling an access state of the isolation circuit. The second tuning switch includes two modes. When the second tuning switch is in a first mode, the isolation circuit accesses to a feeding network of the second antenna. When the second tuning switch is in a second mode, the isolation circuit does not access to the feeding network of the second antenna. Isolation of the first antenna and the second antenna in a preset band in the first mode is superior to that in the second mode.

An antenna structure includes a border frame, a first feed portion, and a second feed portion. The border frame includes an end portion, a first side portion, and a second side portion. The border frame defines a first gap, a second gap, a first slot, and a second slot. The first gap and the second gap are disposed in the end portion. The first slot is disposed in the first side portion. The second slot is disposed in the second side portion. The first gap, the second gap, the first slot, and the second slot divide the border frame into two radiating portions. The first feed portion and the second feed portion are electrically coupled to the two radiating portions and supply current to the two radiating portions respectively.

A system for communicating data over a transmission line is disclosed. In one example implementation, the system may include a transmitter configured to modulate a control signal onto an RF signal using amplitude-shift keying modulation to generate a transmit signal. The system may include a receiver and a transmission line coupling the transmitter to the receiver. The transmitter may be configured to transmit the transmit signal over the transmission line to the receiver, and the receiver may be configured to de-modulate the control signal and extract clock information associated with the transmitter. In some embodiments, the system may include a tuning circuit and a modal antenna, and the tuning circuit may be or include the receiver. The receiver may be configured to adjust a mode of the modal antenna based on the control signal transmitted by the transmitter.

Embodiments of this application provide an antenna resource scheduling method and a device, and relate to the field of antenna technologies, to improve radiation efficiency of an antenna in a sideband area of an operating band band. A main solution is: obtaining, by the device, an operating frequency of an antenna, where the operating frequency is a frequency currently used by the device during communication; determining an operating band based on the operating frequency, where the operating band is a band to which the operating frequency belongs; determining a target impedance parameter based on the operating band and the operating frequency; and adjusting an impedance parameter of an impedance circuit to the target impedance parameter. The embodiments of this application are used for resource scheduling.

Embodiments of this application provide an antenna resource scheduling method and a device, and relate to the field of antenna technologies, to improve radiation efficiency of an antenna in a sideband area of an operating band band. A main solution is: obtaining, by the device, an operating frequency of an antenna, where the operating frequency is a frequency currently used by the device during communication; determining an operating band based on the operating frequency, where the operating band is a band to which the operating frequency belongs; determining a target impedance parameter based on the operating band and the operating frequency; and adjusting an impedance parameter of an impedance circuit to the target impedance parameter. The embodiments of this application are used for resource scheduling.

The present invention provides an antenna system applied to a mobile terminal. The mobile terminal includes a metal bezel, a plastic back shell and a main board. The antenna system includes a metal trace. The metal trace includes a feed section, a radiating section, a first loop unit and a second loop unit. The main board is provided with one feed point connected to both the feed section and the metal bezel, two ground points respectively connected to an end, away from the feed section, of the first loop unit and an end, away from the feed section, of the second loop unit, and a tuning switch connected to the metal bezel.

An electronic device is provided. The electronic device includes a sensor, an antenna, a positioning circuit configured to receive satellite signals through the antenna using a specified frequency band, a resonant frequency adjustment circuit configured to adjust a resonant frequency of the antenna, and a processor, wherein the processor is configured to, identify whether the electronic device is in water using the sensor, when the electronic device is not in water, adjust the resonant frequency to a first frequency band specified according to a first permittivity of air in relation to the specified frequency band using the resonant frequency adjustment circuit, when the electronic device is in water, adjust the resonant frequency of the antenna to a second frequency band specified according to a second permittivity of water in relation to the specified frequency band using the resonant frequency adjustment circuit, receive the satellite signals through the antenna of which the resonant frequency has been adjusted to a frequency band corresponding to one of the first frequency band and the second frequency band using the positioning circuit; and determine a position of the electronic device primarily on the basis of the received satellite signals using the positioning circuit.

An antenna structure includes a border frame, a first feed portion, a second feed portion, and two ground portions. The border frame includes a first gap and a second gap passing through the border frame, thereby defining a first radiating portion and a second radiating portion. The first feed portion is electrically coupled to the first radiating portion to supply an electric current to the first radiating portion. The second feed portion is electrically coupled to the second radiating portion to supply an electric current to the second radiating portion. The two ground portions are disposed between the first feed portion and the second feed portion and separated from each other. The two ground portions are electrically coupled to the first radiating portion or the second radiating portion.