There is provided an antenna coupler device, comprising a housing comprising a first housing portion and a second housing portion, the housing extending from a housing first end to a housing second end along a central axis, defining a chamber; coils positioned in a stationary position in proximity of the first housing portion and distant from the second housing portion; a ferrite rod moveable along the central axis within the first and second housing portions; and a ferrite moving and adjusting mechanism for moving and adjusting a position the ferrite rod within the first and second housing portions for tuning a radio communication frequency based on a position of the ferrite rod within the first and second housing portions.

Disclosed is an electronic device. The electronic device according to an embodiment includes an antenna element configured to receive a signal in at least one frequency band of a first frequency band and a second frequency band, a signal distributor electrically connected with the antenna element, and including a first filter corresponding to the first frequency band and a second filter corresponding to the second frequency band, a matching circuit electrically connectable with the second filter, a transceiver electrically connected with the signal distributor, a switch connecting the second filter with the matching circuit or the transceiver, and a processor electrically connected with the transceiver. Moreover, various embodiments found through the present disclosure are possible.

Disclosed is an electronic device. The electronic device according to an embodiment includes an antenna element configured to receive a signal in at least one frequency band of a first frequency band and a second frequency band, a signal distributor electrically connected with the antenna element, and including a first filter corresponding to the first frequency band and a second filter corresponding to the second frequency band, a matching circuit electrically connectable with the second filter, a transceiver electrically connected with the signal distributor, a switch connecting the second filter with the matching circuit or the transceiver, and a processor electrically connected with the transceiver. Moreover, various embodiments found through the present disclosure are possible.

An antenna device includes first and second radiating elements, a first coil coupled to the first radiating element or a feeding circuit, a second coil coupled to the second radiating element and coupled to the first coil via an electromagnetic field, and an inductor. The first and second radiating elements are coupled to each other via an electric field. The harmonic resonant frequency of a resonance circuit defined by a transformer defined by the first coil and the second coil, the inductor, and the second radiating element exists within a communication frequency range. The harmonic resonant frequency is a (2n+1)th harmonic frequency, where n is an integer equal to or greater than 1.

An antenna includes a radiator, where the radiator includes three parts separated by a gap, an end of a second part proximate to a first part is a first end, and an end of the second part proximate to a third part is a second end, a medium-high frequency feeder, electrically coupled to the radiator at a first coupling point, a low frequency feeder electrically coupled to the radiator, a first ground cable electrically coupled to the radiator at a second coupling point, where an adjustable component for controlling conduction of the first ground cable is disposed on the first ground cable, a length from the second coupling point to an end that is in the first end and the second end and that is further from the first coupling point is a quarter of a wavelength corresponding to a resonance frequency.

An antenna apparatus includes a first antenna that is arranged within a predetermined area on a dielectric substrate and receives a radio wave in a first frequency band, a second antenna that is arranged in a position within the predetermined area different from the first antenna and receives a radio wave in a second frequency band, and a third antenna that is arranged in a position within the predetermined area different from the first antenna and different from the second antenna and receives a radio wave in a third frequency band. An area of the predetermined area is smaller than a sum of a minimum rectangular area including the first antenna, a minimum rectangular area including the second antenna and a minimum rectangular area including the third antenna.

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.

An apparatus and associated method are provided involving a housing having a periphery configured to operate as a second antenna, a third antenna, and a fourth antenna. The periphery includes a top wall having a first slot formed therein, a first side wall having a second slot formed therein, and a second side wall having a third slot formed therein. The top wall is arranged between the first side wall and the second side wall, and a top portion of the periphery is defined between the second slot and the third slot. The top portion is divided into a first top side portion and a second top side portion via the first slot. Further, the first top side portion operates as the second antenna, and the second top side portion operates as both the third antenna and the fourth antenna.

The described system refers to a Sharkfin wireless device comprising a radiating structure, a feeding system and an external port, the radiating structure comprising at least a radiation booster, a ground plane layer and a conductive element that connects at least one the radiation booster to the ground plane layer. The radiating system arrangement features reduced dimensions and multiband operation including low-frequency bands like LTE700.

The described system refers to a Sharkfin wireless device comprising a radiating structure, a feeding system and an external port, the radiating structure comprising at least a radiation booster, a ground plane layer and a conductive element that connects at least one the radiation booster to the ground plane layer. The radiating system arrangement features reduced dimensions and multiband operation including low-frequency bands like LTE700.