An electronic device according to an embodiment of the present invention comprises a first conductive plate; and a second conductive plate which extends from the first conductive plate at a first angle to the first conductive plate, wherein the first conductive plate and the second conductive plate comprise a conductive member which forms a cavity opened in a first direction perpendicular to the first conductive plate; a first radiation unit which is disposed apart from the first conductive plate by a first distance in a first direction; a second radiation unit which is disposed apart from the first conductive plate by a second distance in a second direction opposite to the first direction; at least one wireless communication circuit which feeds electricity to the first radiation unit and the second radiation unit; and a processor which is electrically connected with the wireless communication circuit, the processor can be set to cause the wireless communication circuit to receive a signal of a first frequency having a directivity in the first direction on the basis of the cavity formed by the first radiation unit and the conductive member, and to receive a second frequency signal on the basis of the coupling of the second radiation unit and at least a portion of the conductive member. In addition, various embodiments understood from the specification may be possible.

An electronic device according to an embodiment of the present invention comprises a first conductive plate; and a second conductive plate which extends from the first conductive plate at a first angle to the first conductive plate, wherein the first conductive plate and the second conductive plate comprise a conductive member which forms a cavity opened in a first direction perpendicular to the first conductive plate; a first radiation unit which is disposed apart from the first conductive plate by a first distance in a first direction; a second radiation unit which is disposed apart from the first conductive plate by a second distance in a second direction opposite to the first direction; at least one wireless communication circuit which feeds electricity to the first radiation unit and the second radiation unit; and a processor which is electrically connected with the wireless communication circuit, the processor can be set to cause the wireless communication circuit to receive a signal of a first frequency having a directivity in the first direction on the basis of the cavity formed by the first radiation unit and the conductive member, and to receive a second frequency signal on the basis of the coupling of the second radiation unit and at least a portion of the conductive member. In addition, various embodiments understood from the specification may be possible.

An antenna structure includes a housing, a first feed source, and a second feed source. The first feed source is electrically coupled to a first radiating portion of the housing and adapted to provide an electric current to the first radiating portion. The second feed source is electrically coupled to one of a second radiating portion or a third radiating portion of the housing. The other one of the second radiating portion or the third radiating portion is electrically coupled to the first radiating portion.

An antenna structure includes a housing, a first feed source, and a second feed source. The first feed source is electrically coupled to a first radiating portion of the housing and adapted to provide an electric current to the first radiating portion. The second feed source is electrically coupled to one of a second radiating portion or a third radiating portion of the housing. The other one of the second radiating portion or the third radiating portion is electrically coupled to the first radiating portion.

Provided is a PCB antenna, including PCB substrate, first and second radiating portions, the first radiating portion includes first radiator, second and third radiators extending therefrom to form feeding groove; the second radiating portion includes fourth radiator, fifth and sixth radiators extending therefrom, seventh radiator, eighth and ninth radiators extending therefrom, and tenth and eleventh radiators symmetrically arranged, the fifth radiator extends to the feeding groove; the sixth radiator extends in opposite direction of the fifth radiator; the seventh radiator extends in the direction of the sixth radiator and forms second slot therewith; the eighth radiator extends in opposite direction of the seventh radiator; third slot is formed between the tenth radiator and the second radiator, fourth slot is formed between the eleventh radiator and the third radiator. The PCB antenna provided can enhance medium and high frequency resonance and provide full-band omnidirectional antenna design under 4G demand.

Provided is a PCB antenna, including PCB substrate, first and second radiating portions, the first radiating portion includes first radiator, second and third radiators extending therefrom to form feeding groove; the second radiating portion includes fourth radiator, fifth and sixth radiators extending therefrom, seventh radiator, eighth and ninth radiators extending therefrom, and tenth and eleventh radiators symmetrically arranged, the fifth radiator extends to the feeding groove; the sixth radiator extends in opposite direction of the fifth radiator; the seventh radiator extends in the direction of the sixth radiator and forms second slot therewith; the eighth radiator extends in opposite direction of the seventh radiator; third slot is formed between the tenth radiator and the second radiator, fourth slot is formed between the eleventh radiator and the third radiator. The PCB antenna provided can enhance medium and high frequency resonance and provide full-band omnidirectional antenna design under 4G demand.

A system for generating a three dimension (3D) imaging of an object, the system comprising: an electromagnetic transducer array such as an RF (radio- frequency) antenna array surrounding the object said array comprising: a plurality of electromagnetic transducers; a transmitter unit for applying RF signals to said electromagnetic transducer array; and a receiver unit for receiving a plurality of RF signals affected by said object from said electromagnetic transducers array; a Radio Frequency Signals Measurement Unit (RFSMU) configured to receive and measure said plurality of plurality of affected RF signals and provide RF data of the object; and at least one processing unit, configured to process said RF data to identify the dielectric properties of said object and construct a 3D image of said object.

An electronic device includes a housing including a first plate, a second plate opposite to the first plate, and a side member surrounding a space between the first plate and the second plate, and including at least part of a conductive material, a flexible printed circuit board (FPCB) attached on an inner surface of the housing, a first antenna element which is included in the FPCB and in which a slot is formed, and a first radio frequency integrated circuit (RFIC) for the first antenna element. An opening is formed in the side member or the second plate of the housing. The FPCB is attached the inner surface of the housing such that at least part in which the slot of the first antenna element is formed is exposed through the opening. At least part of the opening is filled with an insulating material.

A microstrip to waveguide transition comprising a waveguide module and a section of printed circuit board (PCB). The waveguide module comprises a waveguide aperture and a repetitive structure, the waveguide aperture being arranged extending through the module for attaching a waveguide to an external side of the module, the repetitive structure comprising a plurality of protruding elements arranged to surround the waveguide aperture on an internal side of the module and to define a passage into the waveguide aperture on the internal side, wherein the repetitive structure is configured to attenuate electromagnetic signal propagation in a frequency band past the repetitive structure while allowing propagation via the passage, the transition further comprising a PCB with a patch antenna connected to a transmission line and arranged to face the passage into the waveguide aperture.

An antenna apparatus includes a feeding antenna inside an electronic device and one or more antenna elements, such as a floating metal antenna, disposed on a rear cover of the electronic device. The floating metal antenna and a feeding antenna inside the electronic device may form a coupling antenna structure. The feeding antenna may be an antenna fastened on an antenna support (which may be referred to as a support antenna). The feeding antenna may alternatively be a slot antenna formed by slitting on a metal middle frame of the electronic device. The antenna apparatus may be implemented in limited design space, thereby effectively saving antenna design space inside the electronic device. The antenna apparatus may generate excitation of a plurality of resonance modes, so that antenna bandwidth and radiation characteristics can be improved.