Abstract: An antenna module according to an embodiment of the present disclosure includes a main board, a ground area formed in a rectangular shape on at least a portion of a main board, a pair of power feeding units formed at edge portions of the ground area while being spaced apart from each other, and a pair of monopole antennas electrically connected to the power feeding units, respectively, and disposed on the ground area while protruding from the ground area. The monopole antennas may be configured to be asymmetric about the feeding unit.

Abstract: An antenna module according to an embodiment of the present disclosure includes a ground area formed in a rectangular shape on at least a portion of a main board, a pair of power feeding units formed at two of edge portions of the rectangular ground area while being spaced apart from each other, and a pair of monopole antennas electrically connected to the power feeding units, respectively, and disposed on the ground area. An antenna module is provided in a vehicle and transmits/receives a communication signal to provide a communication service.

Abstract: A ferrite sheet includes acicular ferrite powder, and has a uniaxially-oriented magnetic direction. The ferrite sheet is capable of remarkably increasing magnetic permeability and saturation magnetization, and accordingly is capable of remarkably improving the power efficiency of an electronic device by minimizing magnetic field leakage when being applied to a shielding sheet.

Abstract: A wireless video bridge for removing electromagnetic radiation noise includes an interface and a shielding part configured to remove a harmonic signal generated in relation to the interface when the wireless video bridge is operating.

Abstract: A wireless security camera system includes a security camera, a first communication module which receives, from the security camera, images captured by the security camera, and includes antennas for transmitting, through a wireless network, the captured images received, a second communication module including antennas for receiving the captured image to be transmitted through the antennas, and a storage unit for storing the captured image received by the second communication module, wherein the captured images are transmitted and received between the plurality of antennas of the first communication module and the plurality of antennas of the second communication module in a multi-input, multi-output (MIMO) manner, and the first communication module and the second communication module perform beamforming to the plurality of antennas toward the direction of the other party when transmitting the captured images to transmit and receive.

Abstract: One or more example embodiments of the present disclosure provide a positive active material, a rechargeable lithium battery including the same, and a method of preparing the same. The positive active material includes a lithium-containing composite oxide; and a sulfur-containing inorganic lithium compound, wherein the sulfur-containing inorganic lithium compound forms a coating layer on a surface of the lithium-containing composite oxide. The coating layer may reduce an amount of residual lithium and gas present on the surface of the lithium-containing composite oxide, thereby improving the stability of the battery and improving the cycle-life characteristics.

Abstract: An embedded antenna includes a power transfer pad connected to a circuit inside a portable terminal having a metal exterior, and a first radiation unit which is connected to the power transfer pad so as to radiate a signal of a first passband, and a second radiation unit which is connected to the metal exterior so as to radiate a signal of a second passband.

Abstract: A composite ferrite magnetic field shielding sheet is divided into at least two regions. The at least two regions have different properties by adjusting raw ferrite particles suitable for forming at least two functional coil patterns from among wireless power charging (WPC), near field wireless communication (NFC), and magnetic security transmission (MST) coil patterns.

Abstract: An antenna module includes a magnetic body portion made of a ferrite sheet, a first pattern portion directly formed on one surface of the magnetic body portion and including a first pattern and a first plating layer stacked thereon, a second pattern portion directly formed on the other surface of the magnetic body portion and including a second pattern and a second plating layer stacked thereon, and a via hole formed through the magnetic body portion and having a connection member for electrically connecting the first pattern portion and the second pattern portion formed therein. The first pattern portion and the second pattern portion are formed directly on the magnetic body portion without a substrate portion. Thus, the thickness is reduced by the amount of the thickness of the substrate portion.

Abstract: A composite ferrite magnetic field shielding sheet is divided into at least two regions. The at least two regions have different properties by adjusting raw ferrite particles suitable for forming at least two functional coil patterns from among wireless power charging (WPC), near field wireless communication (NFC), and magnetic security transmission (MST) coil patterns.

Abstract: A wireless security camera system includes a security camera, a first communication module which receives, from the security camera, images captured by the security camera, and includes antennas for transmitting, through a wireless network, the captured images received, a second communication module including antennas for receiving the captured image to be transmitted through the antennas, and a storage unit for storing the captured image received by the second communication module, wherein the captured images are transmitted and received between the plurality of antennas of the first communication module and the plurality of antennas of the second communication module in a multi-input, multi-output (MIMO) manner, and the first communication module and the second communication module perform beamforming to the plurality of antennas toward the direction of the other party when transmitting the captured images to transmit and receive.

Abstract: An antenna module includes a magnetic body portion made of a ferrite sheet, a first pattern portion directly formed on one surface of the magnetic body portion and including a first pattern and a first plating layer stacked thereon, a second pattern portion directly formed on the other surface of the magnetic body portion and including a second pattern and a second plating layer stacked thereon, and a via hole formed through the magnetic body portion and having a connection member for electrically connecting the first pattern portion and the second pattern portion formed therein. The first pattern portion and the second pattern portion are formed directly on the magnetic body portion without a substrate portion. Thus, the thickness is reduced by the amount of the thickness of the substrate portion.

Abstract: A ferrite sheet includes acicular ferrite powder, and has a uniaxially-oriented magnetic direction. The ferrite sheet is capable of remarkably increasing magnetic permeability and saturation magnetization, and accordingly is capable of remarkably improving the power efficiency of an electronic device by minimizing magnetic field leakage when being applied to a shielding sheet.

Abstract: A transmission type antenna includes a transmission type structure for transmitting and radiating an incident radio wave, a power feeding body for radiating the radio wave to the transmission type structure or receiving the incident radio wave, a drive shaft for moving or tilting the power feeding body, a body for providing a moving path of the power feeding body through the drive shaft, and a control unit, connected through the drive shaft to the power feeding body, for controlling the movement and tilt of the drive shaft to thereby determine the tilling direction of the power feeding body.

Abstract: An antenna using a length-adjustable slit includes a power supply line connected to a ground pad and a power supply pad for receiving a power supply signal from a PCB, the ground pad being connected to a case, a radiator formed on the case, the radiator including at least one slit having a dielectric embedded in the slit, and a plurality of switching terminals for controlling the resonant frequency of the slit.

Abstract: A transmission type antenna includes a transmission type structure for transmitting and radiating an incident radio wave, a power feeding body for radiating the radio wave to the transmission type structure or receiving the incident radio wave, a drive shaft for moving or tilting the power feeding body, a body for providing a moving path of the power feeding body through the drive shaft, and a control unit, connected through the drive shaft to the power feeding body, for controlling the movement and tilt of the drive shaft to thereby determine the tilling direction of the power feeding body.

Abstract: An embedded antenna includes a power transfer pad connected to a circuit inside a portable terminal having a metal exterior, and a first radiation unit which is connected to the power transfer pad so as to radiate a signal of a first passband, and a second radiation unit which is connected to the metal exterior so as to radiate a signal of a second passband.

Abstract: An antenna using a length-adjustable slit includes a power supply line connected to a ground pad and a power supply pad for receiving a power supply signal from a PCB, the ground pad being connected to a case, a radiator formed on the case, the radiator including at least one slit having a dielectric embedded in the slit, and a plurality of switching terminals for controlling the resonant frequency of the slit.