Abstract: A fluid level measurement system using a buoyant body includes a guide part installed in a direction perpendicular to the bottom surface of a fluid storage tank, and provided with a space in which a fluid can move therein; a buoyant body inserted into the guide part, and configured to float along the surface of the fluid inside the guide part; and a measurement part coupled to the top end of the guide part, and configured to measure the level of the surface of the fluid inside the fluid storage tank by transmitting a signal toward the buoyant body in the inner space of the guide part and then receiving a signal reflected from the buoyant body.

Abstract: An antenna module disposed inside a conductive cover and performing near field communications includes: a wiring portion having antenna wirings formed on an insulating substrate and having a first surface facing an inner surface of the conductive cover and a second surface opposing the first surface; a first magnetic portion disposed between the first surface of the wiring portion and the conductive cover; and a second magnetic portion disposed on the second surface of the wiring portion, wherein the first magnetic portion and the second magnetic portion are disposed to partially overlap each other or to have edges thereof in vertical correspondence with each other.

Abstract: An antenna module includes a coil part including a second antenna wiring disposed in a spiral shape on an insulating substrate and a first antenna wiring disposed in an internal region of the second antenna wiring; and a magnetic part including a second magnetic part disposed on a second surface of the insulating substrate and a first magnetic part extending from the second magnetic part, penetrating through the internal region of the second antenna wiring, and disposed on a first surface of the insulating substrate.

Abstract: An electronic device including a multi-band antenna, a cover, a substrate, and a conductive border member is disclosed, where the device includes a first feed terminal connected to a circuit of a substrate embedded in the device, a second feed terminal connected to the circuit and insulated from the first feed terminal, a ground disposed on the substrate, a conductive border member continuously disposed along a periphery of the electronic device, a first antenna connected to the first feed terminal and the conductive border member, and the first antenna forming a multiple resonance for covering a first multi-band having a plurality of bands, a second antenna connected to the second feed terminal and the conductive border member and the second antenna forming a multiple resonance for covering a second multi-band, and a bypass conductor to bypass interference signals generated by the first antenna and the second antenna to the ground.

Abstract: An antenna module includes a coil part including a second antenna wiring disposed in a spiral shape on an insulating substrate and a first antenna wiring disposed in an internal region of the second antenna wiring; and a magnetic part including a second magnetic part disposed on a second surface of the insulating substrate and a first magnetic part extending from the second magnetic part, penetrating through the internal region of the second antenna wiring, and disposed on a first surface of the insulating substrate.

Abstract: An antenna module disposed inside a conductive cover and performing near field communications includes: a wiring portion having antenna wirings formed on an insulating substrate and having a first surface facing an inner surface of the conductive cover and a second surface opposing the first surface; a first magnetic portion disposed between the first surface of the wiring portion and the conductive cover; and a second magnetic portion disposed on the second surface of the wiring portion, wherein the first magnetic portion and the second magnetic portion are disposed to partially overlap each other or to have edges thereof in vertical correspondence with each other.

Abstract: A coil module for wireless communications includes: a coil part formed by a molded substrate and having a solenoid shape; and a magnetic member disposed in an insertion hole of the coil part.

Abstract: A multiband antenna includes a conductive connecting member, an external conductor, and a conductor frame. The conductive connecting member is disposed on a non-metallic region of an electronic device. The external conductor is disposed on an external surface of the electronic device from a first connecting terminal connected to an end of the conductive connecting member to first and second path terminals, respectively, located opposite to each other. The conductor frame is connected to the first and second path terminals and a ground of a substrate. The external conductor includes a first external radiation conductor disposed between the first path terminal and the first connecting terminal, and a second external radiation conductor integrally formed with the first external radiation conductor and disposed between the second path terminal and the first connecting terminal.

Abstract: An electronic device includes a board embedded in the electronic device, having a peripheral portion and a conductive region including a ground and a non-conductive region, an external conductor located in the peripheral portion and including a first non-segmented conductor having persistence with respect to performing an antenna function and connected to the ground. The device also includes a first antenna pattern configured to receive a first feed signal that contribute to first resonance for a first communications band, a second antenna pattern configured to receive a second feed signal that contributes to second resonance for a second communications band, and a first shield located between the first antenna pattern and the second antenna pattern that is connected to each of the ground and the first non-segmented conductor.

Abstract: An electronic device including a multi-band antenna, a cover, a substrate, and a conductive border member is disclosed, where the device includes a first feed terminal connected to a circuit of a substrate embedded in the device, a second feed terminal connected to the circuit and insulated from the first feed terminal, a ground disposed on the substrate, a conductive border member continuously disposed along a periphery of the electronic device, a first antenna connected to the first feed terminal and the conductive border member, and the first antenna forming a multiple resonance for covering a first multi-band having a plurality of bands, a second antenna connected to the second feed terminal and the conductive border member and the second antenna forming a multiple resonance for covering a second multi-band, and a bypass conductor to bypass interference signals generated by the first antenna and the second antenna to the ground.

Abstract: An electronic device includes a board embedded in the electronic device, having a peripheral portion and a conductive region including a ground and a non-conductive region, an external conductor located in the peripheral portion and including a first non-segmented conductor having persistence with respect to performing an antenna function and connected to the ground. The device also includes a first antenna pattern configured to receive a first feed signal that contribute to first resonance for a first communications band, a second antenna pattern configured to receive a second feed signal that contributes to second resonance for a second communications band, and a first shield located between the first antenna pattern and the second antenna pattern that is connected to each of the ground and the first non-segmented conductor.

Abstract: An electronic device includes a board, a circuit unit, a feed terminal, a ground, and a conductive border member. The board is embedded within a housing. The circuit unit is disposed on the board, and the feed terminal is connected to the circuit unit. The ground is disposed on the board, and the conductive border member is configured to enclose the housing and includes a first connection terminal connected to the feed terminal, a second connection terminal connected to the ground, a first antenna member configured to provide a first signal path between the first connection terminal and the second connection terminal, and a second antenna member continuously arranged with the first antenna member to form a closed loop and configured to provide a second signal path, different from the first signal path, between the first connection terminal and the second connection terminal.

Abstract: A near field communications (NFC) antenna includes: a first sheet including a magnetic material, the magnetic material including a thickness greater than 0 mm and less than or equal to about 0.05 mm; an antenna pattern disposed above the first sheet; and a second sheet disposed between the antenna pattern and the first sheet, wherein an interval between the antenna pattern and the magnetic material is at least about 0.03 mm.

Abstract: A multiband antenna includes a conductive connecting member, an external conductor, and a conductor frame. The conductive connecting member is disposed on a non-metallic region of an electronic device. The external conductor is disposed on an external surface of the electronic device from a first connecting terminal connected to an end of the conductive connecting member to first and second path terminals, respectively, located opposite to each other. The conductor frame is connected to the first and second path terminals and a ground of a substrate. The external conductor includes a first external radiation conductor disposed between the first path terminal and the first connecting terminal, and a second external radiation conductor integrally formed with the first external radiation conductor and disposed between the second path terminal and the first connecting terminal.