Abstract: The present invention relates to a phase shifter having low loss in broadband, and a wireless communication device comprising same. The wireless communication device according to one embodiment comprises: a wireless communication module; a first antenna; a first transmission line for allowing the transmission of a signal between the wireless communication module and the first antenna; and a phase shifting element arranged in series on the first transmission line, wherein the phase shifting element is stacked in the vertical direction and can include a plurality of resonant unit elements electrically connected in parallel to one another.

Abstract: A transformer according to one embodiment comprises: a core portion having an upper core and a lower core; and a coil portion disposed in the core portion, wherein: the coil portion includes a first coil wound in a first direction, a second coil wound in a second direction opposite to the first direction, and a third coil including a flat panel shape; the lower core includes a body portion, a first leg portion and a second leg portion protruding from the body portion, and a spacing portion formed between the first leg portion and the second leg portion; the first leg portion includes two first outer legs and a first intermediate leg disposed between the two first outer legs; the second leg portion includes two second outer legs and a second intermediate leg disposed between the two second outer legs; the first coil can be disposed to surround the first intermediate leg; and the second coil can be disposed to surround the second intermediate leg.

Abstract: A transformer according to one embodiment of the present invention comprises: a core unit including an upper core and a lower core; a coil unit of which a portion is disposed in the core unit; and a bobbin unit disposed between the core unit and the coil unit, wherein the coil unit includes a first coil and a second coil of which at least a portion is disposed on the side surface of the first coil, the core unit includes a first outer foot part, a second outer foot part, and an intermediate foot part disposed between the first outer foot part and the second outer foot part, and the shortest distance between the first coil and the second coil can be 0.1 to 0.3 times the shortest distance between the outermost part of the first coil and an adjacent outer foot part from among the first outer foot part and the second outer foot part.

Abstract: The present invention relates to a magnetic core capable of precisely maintaining the size of a gap, and to a magnetic element comprising same. A magnetic core according to one embodiment comprises: an upper core having at least a first outer leg and a second outer leg; a lower core having at least a third outer leg facing the first outer leg and a fourth outer leg facing the second outer leg; outer leg gap parts disposed between the first outer leg and the third outer leg, and between the second outer leg and the fourth outer leg. The outer leg gap parts may comprise: an adhesive; and a plurality of spherical fillers dispersed in the adhesive.

Abstract: An inductor according to an embodiment includes a core unit and a coil unit wherein a first coil unit includes a first upper conductive pattern and a first lower conductive pattern, wherein the second coil unit includes a second upper conductive pattern and a second lower conductive pattern, wherein the coil unit includes a center portion, a first pattern lead-out portion, and a second pattern lead-out portion, and wherein, in the second pattern lead-out portion, the second upper conductive pattern and the second lower conductive pattern overlap each other in a vertical direction such that at least a portion of the second upper conductive pattern and at least a portion of the second lower conductive pattern intersect each other when viewed in a plan view.

Abstract: An inductor includes a first magnetic body having a toroidal shape and having a ferrite; and a second magnetic body configured to be different from the first magnetic body and including a metal ribbon, wherein the second magnetic body includes an outer magnetic body disposed on an outer circumferential surface of the first magnetic body and an inner magnetic body disposed on an inner circumferential surface of the first magnetic body, and each of the outer magnetic body and inner magnetic body is wound in a plurality of layers in a circumferential direction of the first magnetic body.

Abstract: An embodiment discloses a method of manufacturing a rare-earth magnet, the method including: preparing a magnetic sintered body including RE, Fe, and B as compositional components (RE is selected from one or two or more selected from rare earth elements); applying a solution containing a grain boundary diffusion material to the sintered body; and performing grain boundary diffusion by heat-treating the sintered body, wherein the grain boundary diffusion material includes a heavy rare earth element (HREE) hydride and a light rare earth element (LREE) hydride.

Abstract: A filter having a stacked structure of an embodiment comprises: a plurality of ground parts which are stacked in a first direction and have a plate shape; a plate-shaped signal part which is disposed to face the plurality of ground parts in the first direction between the plurality of ground parts; a linear signal part which is disposed to be adjacent to at least one of the plurality of ground parts or plate-shaped signal part in at least one direction of a second direction or a third direction; and a plurality of connection parts which extend in the first direction and electrically connect at least two of the plurality of ground parts, the plate-shaped signal part, and the linear signal part to each other, wherein the second direction intersects the first direction, and the third direction intersects each of the first and second directions.

Abstract: An inductor according to one embodiment of the present invention comprises: a core part; a coil part having one or more coils which are wound around the midfoot of the core part and which have two ends; and a base which is arranged beneath the coil part and which supports at least a part of the outer circumferential surface of each of the one or more coils, wherein the base can comprise: a frame having a hollow hole, which is formed at the center thereof so as to include a longer shaft and a shorter shaft; and a support part having a plurality of support members protruding toward the outer circumferential surface, so as to encompass at least a part of the outer circumferential surface.

Abstract: Disclosed is an inductor including a core unit including an inner leg and an outer leg and a coil unit including a coil disposed spirally around the inner leg and a coil substrate on which the coil is disposed, wherein the coil has a width gradually increasing from the inner leg to the outer leg in a horizontal direction between the inner leg and the outer leg.

Abstract: The present invention relates to a transformer and, more specifically, to a transformer including a secondary coil portion on which a conductive plate is stacked. A transformer according to one embodiment of the present invention can comprise: a bobbin; a core portion coupled to the bobbin along the outer side of the bobbin; and a plurality of conductive plates inserted into the bobbin and stacked in a thickness direction.

Abstract: A MnBi-based magnet according to an embodiment includes crystal grains of (MnBi)aMb composition including a manganese element, a bismuth and a M element, wherein the M element is contained an amount of more than 0 at % and less than or equal to 10 at % when at % for all atoms of (MnBi)aMb is 100 at %, and the M element includes a chromium element, a germanium element, or a tellurium element.

Abstract: The present invention relates to a magnetic core using a different type of magnetic material. The magnetic core according to one embodiment may comprise: a ferrite powder comprising manganese (Mn), zinc, iron, and oxygen (O); and a metal alloy powder made of at least two substances from among nickel (Ni), iron (Fe), aluminum (Al), molybdenum (Mo), and silicon (Si). Here, the magnetic core can comprise 67 to 72 wt % of the ferrite powder and 28 to 33 wt % of the metal alloy powder.

Abstract: An embodiment of the present invention includes a signal processing device; a (1-1)-th antenna which transmits or receives a (1-1)-th signal; a (1-2)-th antenna which transmits or receives a (1-2)-th signal; a second antenna which transmits or receives a second signal; a (1-1)-th phase control element disposed between the (1-1)-th antenna and the signal processing device; a (1-2)-th phase control element disposed between the (1-2)-th antenna and the signal processing device; and a second phase control element disposed between the second antenna and the signal processing device, wherein the (1-1)-th signal output from the (1-1)-th phase control element and the (1-2)-th signal output from the (1-2)-th phase control element have a phase difference of 180 degrees from each other, and the second signal output from the second phase control element has a phase difference of 90 degrees from each of the (1-1)-th signal and the (1-2)-th signal.

Abstract: The present invention relates to a magnetic component. The magnetic component comprises: a core including a first flat plate portion, a second flat plate portion, and a pair of outer legs and a center leg disposed between the first flat plate portion and the second flat plate portion; and a coil part at least partially disposed within the core, wherein the first flat plate portion or the second flat plate portion comprises a laminate core in which a plurality of sheets elongated in a first direction are laminated together in a second direction, and each of the outer legs or the center leg comprises a non-laminate core vertically protruding from and attached to one surface of the laminate core.

Abstract: A magnetic coupling device according to an embodiment of the present invention includes a first bobbin including an upper surface, a lower surface, and an outer surface, a groove portion which is disposed on the inner side of the outer surface and is concave from the upper surface toward the lower surface, and a first terminal portion and a second terminal portion which are disposed on the outer surface and spaced apart from each other; a second bobbin disposed on the groove portion and accommodating a magnetic substance core; and a first coil and a second coil which are wound on the second bobbin and spaced apart from each other, wherein the first coil includes a first winding portion and a first extension portion, and the second coil includes a second winding portion, and a second extension portion.

Abstract: The present invention relates to a phase shifter having low loss in broadband, and a wireless communication device comprising same. The wireless communication device according to one embodiment comprises: a wireless communication module; a first antenna; a first transmission line for allowing the transmission of a signal between the wireless communication module and the first antenna; and a phase shifting element arranged in series on the first transmission line, wherein the phase shifting element is stacked in the vertical direction and can include a plurality of resonant unit elements electrically connected in parallel to one another.

Abstract: The present invention relates to a magnetic component. The magnetic component includes, for example, an inductor, a transformer, and the like, but is not limited thereto. The magnetic component according to an embodiment of the present invention includes: a magnetic core; a second substrate disposed on one side of the core; a first substrate disposed facing the second substrate with the core interposed therebetween; and a coil including a plurality of coil patterns attached to the second substrate and the first substrate and a plurality of conductors that pass through the core and electrically connect the coil patterns of the second substrate and the first substrate.

Abstract: An inductor according to an embodiment of the present invention may include: a plurality of first E-type cores, each of which has a base unit and a center leg extending in a first direction from the base unit; a first I-type core arranged in the first direction from the plurality of first E-type cores; and a coil wound around the center leg of each of the plurality of first E-type cores. Here, the plurality of E-type cores may be arranged in a line along the first direction.

Abstract: The present invention pertains to a transformer, and more specifically, to a transformer which includes a primary coil unit comprising wound conductive lines, and a secondary coil unit in which conductive plates are stacked. The transformer according to an embodiment of the present invention may include: a bobbin; a core unit which is coupled to the bobbin along the outer side of the bobbin; and a plurality of conductive plates which are inserted into the bobbin and stacked in the thickness direction.