An antenna device includes first and second radiating elements, a first coil coupled to the first radiating element or a feeding circuit, and a second coil coupled to the second radiating element and coupled to the first coil via an electromagnetic field. The first and second radiating elements are coupled to each other via an electric field. At a resonant frequency defined by the antenna coupling element and the second radiating element, the absolute value of the phase difference between a current flowing into the second radiating element due to the electromagnetic field of the first coil and the second coil and a current flowing into the second radiating element due to the electric field is equal to or less than about 90 degrees.

The present disclosure relates to an antenna structure and an electronic device. The antenna structure includes: a metal frame body; a first antenna branch coupled to one side edge of the metal frame body; a second antenna branch coupled to the other side edge of the metal frame body; an antenna gap defined by the first antenna branch and the second antenna branch after the first antenna branch and the second antenna branch both extend towards a middle portion of the metal frame body, an extension length of the first antenna branch being greater than an extension length of the second antenna branch; and a feed point with one end coupled to a ground point and the other end coupled to the first antenna branch.

The present disclosure relates to an antenna structure and an electronic device. The antenna structure includes: a metal frame body; a first antenna branch coupled to one side edge of the metal frame body; a second antenna branch coupled to the other side edge of the metal frame body; an antenna gap defined by the first antenna branch and the second antenna branch after the first antenna branch and the second antenna branch both extend towards a middle portion of the metal frame body, an extension length of the first antenna branch being greater than an extension length of the second antenna branch; and a feed point with one end coupled to a ground point and the other end coupled to the first antenna branch.

Communication device with configurable antenna interface and method for configuring an antenna interface. One implementation of the communication device includes an RF transceiver, a threaded coaxial antenna connector, a first RF terminal, a second RF terminal, an RF signal conduit, and an interface circuit. The threaded coaxial antenna connector includes inner and outer terminals. The RF signal conduit includes a first structure that couples the first RF terminal to the inner terminal of the threaded coaxial antenna connector. The RF signal conduit further includes a second structure that couples the second RF terminal to the outer terminal of the threaded coaxial antenna connector. The interface circuit is configured to set an SMA antenna interface mode by coupling the RF transceiver to the first RF terminal. The interface circuit is also configured to set a ferrule antenna interface mode by coupling the RF transceiver to the second RF terminal.

A method and apparatus for implementing host-centric antenna control. An apparatus may include a plurality of antennas for wireless transmission and reception, a wireless modem for processing a signal for wireless transmission and reception via the antennas, a processor (host), and an antenna tuner circuitry. The processor is configured to run an antenna tuner software module configured to generate a control signal to configure at least one antenna. The antenna tuner circuitry is configured to switch or tune the at least one antenna based on the control signal. The apparatus may include at least one sensor coupled to the processor. The antenna tuner software module may be configured to generate the control signal based on inputs from the at least one sensor. The antenna tuner software module may be configured to receive RF parameters from the wireless modem and generate the control signal based on the RF parameters.

A conductor pattern of an antenna device is provided in a notch and includes a common conductor, a first conductor, and a second conductor. A power supply unit is disposed at a connection portion between a conductor plate and the conductor pattern. Each of the first conductor and the second conductor is connected to the power supply unit with the common conductor interposed therebetween. The power supply unit is positioned at a position at which a distance to an opening end is shorter than a distance to a closed end at a side end. A first partial conductor of the first conductor is positioned between the second conductor and a side end. A length of the first conductor in a direction along the side end is longer than a length of the second conductor in the direction along the side end.

A conductor pattern of an antenna device is provided in a notch and includes a common conductor, a first conductor, and a second conductor. A power supply unit is disposed at a connection portion between a conductor plate and the conductor pattern. Each of the first conductor and the second conductor is connected to the power supply unit with the common conductor interposed therebetween. The power supply unit is positioned at a position at which a distance to an opening end is shorter than a distance to a closed end at a side end. A first partial conductor of the first conductor is positioned between the second conductor and a side end. A length of the first conductor in a direction along the side end is longer than a length of the second conductor in the direction along the side end.

A phased-array antenna system includes: an array of discrete antenna modules disposed conformally with an exterior surface of a platform; a digital distribution system comprising a digital communications medium to convey digital signals to and/or from respective input/output ports of the antenna modules; and a controller system to supply and/or receive the digital signals to/from the antenna modules via the digital distribution system. The controller system controls relative phases of the digital signals to enable the antenna elements to form a directive antenna beam pattern. Each antenna module includes: an antenna element to emit and/or absorb RF signals; an input/output port to send and/or receive digital signals; an electronics unit including an A/D and/or D/A converter to provide an interface between the antenna element and the input/output port; and a housing in which the antenna element and electronics unit are packaged.

The present invention relates to an interphone device for use in ships, the interphone device comprising: an input/output unit to which a voice is input or from which a voice is output; a transmission/reception circuit unit which receives the voice from the input/output unit and provides a first signal obtained by encoding and modulating the received voice; and an antenna which is attached to the metal hull of the ship, forms an electromagnetic field in the metal hull, and carries the first signal received from the transmission/reception circuit unit by the electromagnetic field, so as to propagate the first signal.

The present invention relates to an interphone device for use in ships, the interphone device comprising: an input/output unit to which a voice is input or from which a voice is output; a transmission/reception circuit unit which receives the voice from the input/output unit and provides a first signal obtained by encoding and modulating the received voice; and an antenna which is attached to the metal hull of the ship, forms an electromagnetic field in the metal hull, and carries the first signal received from the transmission/reception circuit unit by the electromagnetic field, so as to propagate the first signal.