Abstract: A three-axis antenna containing: a bobbin for housing a core, made of a resin having an top flange and a bottom flange both of which include four flange pieces at both ends of the winding column in the thickness direction of the core; a first coil and a second coil wound in the spaces between the flange pieces to cross each other at the upper and lower surfaces of the core; and a third coil wound at the side surface of the core and between the top flange and the bottom flange.
Abstract: A surface-mount inductor including a coil formed by winding a rectangular wire and a molded body for accommodating the coil, where the coil includes: a first roll formed by winding a rectangular wire, a second roll formed by winding the rectangular wire in position adjacent to the first roll along the winding axis, and a third roll formed by winding the rectangular wire on the second roll in a partially overlapping manner in a position adjacent to and opposite from the first roll along the winding axis, the ends of the wire being brought out from the outermost turns of the first roll and the third roll as lead ends, and the winding axis is parallel with the mounting face and the lead ends being extended over the surface of the molded body, as well as the method for manufacturing the same.
Abstract: The present invention provides a dielectric waveguide input/output structure for connecting to a coaxial connector a plurality of dielectric waveguide resonators each comprising an approximately parallelepiped-shaped dielectric block, wherein the plurality of dielectric waveguide resonators include a first dielectric waveguide resonator and a second dielectric waveguide resonator each having an exterior coated with an electrically conductive film, except for a coupling window, wherein each of the coupling window is formed with a probe composed of an electrically conductive film, the probe having one end connected to a feeding point, and the other end connected to the electrically conductive film, and wherein the first dielectric waveguide resonator and the second dielectric waveguide resonator are arranged in such a manner that the one side surfaces thereof are located in opposed relation to each other.
Abstract: Dielectric waveguide comprising dielectric body having an exterior coated with an electrically conductive film. Region in one side surface couples to another dielectric waveguide, and slot in bottom surface exposes the dielectric body in an L-shape in two adjacent side surfaces, except for the one side surface. Front surface of printed circuit board has a ground pattern opposed to the slot, which includes opening with outer shape greater than slot, and a back surface having a ground pattern surrounding a strip line disposed to cross through the slot. A distal end of the strip line and the front surface-side ground pattern are coupled together by a via hole. The opening is surrounded by a via hole group which couples the front and the back surface-side ground patterns together. The dielectric waveguide is disposed to allow the opening and the slot to be opposed to each other.
Abstract: A three-axis antenna having a first to a third antenna coils arranged so that directions of the maximum reception sensitivities are orthogonal to each other, the first to the third antenna coils comprising respectively: a planar coil being wound around the winding axis in circumferential direction and has an aperture; and a foil-type core inserted in the aperture; the foil-type core being arranged a plane to be in parallel to the plane of the first to the third coils.
Abstract: A waveguide slot antenna utilizing a waveguide as a feeding line and having a linear slot provided in a wall of the waveguide, the waveguide slot antenna comprising a flat-shaped conductor plate which has a first through-hole formed in a shape approximately identical to that of the slot and provided at a position opposed to the slot, and a second through-hole provided at a position intersecting the first through-hole.
July 21, 2015
Date of Patent:
December 13, 2016
Kazuhisa Sano, Yukikazu Yatabe, Kazuhiro Ito
Abstract: Dielectric waveguide comprising a plurality of resonator groups disposed on a substrate, wherein each of the resonator groups comprises one or more integrally-formed resonators, each obtained by coating a dielectric body with a conductor film, wherein each resonator group in at least a set of resonator groups of the plurality of resonator groups comprises waveguide-side slot exposing the dielectric body in a bottom surface thereof, wherein the substrate comprises a cavity surrounded by conductor patterns formed in the upper and lower surfaces, and by a via hole connecting the conductor patterns in the upper and lower surfaces, wherein the cavity comprises a set of substrate-side slots exposing the core material, the set of substrate-side slots being provided at a position to which waveguide-side slots of the set of resonator groups are opposed, and wherein resonator groups in the set of resonator groups are coupled together via the cavity.
Abstract: A laminated electronic component is configured such that insulator layers and conductor patterns are laminated and a coil is formed in a laminate of the insulator layers and the conductor patterns by connecting the conductor patterns among the insulator layers, where the coil includes conductor pattern pairs each composed of two conductor patterns arranged so as to sandwich each insulator layer, and includes a first connecting portion connecting both end portions of the two conductor patterns so as to connect the two connecting patterns in parallel and a second connecting portion connecting a plurality of the conductor pattern pairs in series, where the first connecting portion and the second connecting portion are arranged so as to be displaced from each other in a direction of a line length of a coil pattern.
Abstract: A coil is formed by winding an electrically-conductive wire, and is buried in a molded body formed from a composite magnetic material containing a magnetic powder and a resin. Each of led-out ends of the coil has a cut surface formed by obliquely cutting an electrically-conductive wire with respect to a surface thereof. The cut surface of each led-out end of the coil is exposed on a surface of the molded body, and each led-out end is connected to an external terminal electrode formed in the surface of the molded body at the cut surface.
Abstract: An electronic component including: a body having a shape of a rectangular parallelepiped, the body including a first end surface and a second end surface opposed to each other and a mounting surface; and a first external electrode provided on the first end surface and the mounting surface. A first portion of the first end surface inclines from a direction normal to the mounting surface so as to come closer to the second end surface with decreasing distance from the mounting surface in the normal direction, the first portion being a portion within a predetermined distance from the mounting surface in the normal direction. A thickness of a portion of the first external electrode contacting the first portion becomes greater with decreasing distance from the mounting surface in the normal direction.
July 26, 2016
November 17, 2016
MURATA MANUFACTURING CO., LTD., TOKO, INC.
Abstract: Provided is an input/output structure for a dielectric waveguide, comprising a rectangular-parallelepiped-shaped dielectric block, a plate-shaped dielectric plate, and a feeder line comprising a line-shaped electrically conductive foil sandwiched between the dielectric block and the dielectric plate.
Abstract: There is provided a wireless power transmitting device which can detect relative positions of a power transmitting coil and a power receiving coil with a simple configuration, and reduce cost of components. The wireless power transmitting device has: a power transmitting coil which supplies power to a power receiving coil by way of electromagnetic induction; an excitation coil which excites the power receiving coil; a plurality of detecting coils which are arranged around a center of the power transmitting coil; and notifying units, and each of the detecting coils has a shape which widens apart from the center of the power transmitting coil, and the notifying units notify relative positions of the power transmitting coil and the power receiving coil by detecting an echo signal produced in the power receiving coil through the plurality of detecting coils.
Abstract: A dielectric waveguide slot antenna which is capable of radiating a circularly-polarized wave comprises: a dielectric waveguide having a slot through which a dielectric is exposed in a part of an electrically conductive film formed on a surface of the dielectric waveguide; a printed circuit board having a via hole opposed to the slot with the same shape as that of the slot; and a conductor plate having a first through-hole opposed to and having approximately the same shape as the via hole, and a pair of second through-holes in a vicinity of the first through-hole. The dielectric waveguide, the printed circuit board and the conductor plate are joined together with aligning the slot, the via hole and the first through-hole with each other. The printed circuit board has a conductor layer formed in positions facing to the second through-holes, and the second through-holes are arranged point-symmetrically with each other.
Abstract: [Technical Problem] This invention provides a surface-mount inductor that is capable of positioning a coil in a predetermined position in a mold, thereby to position the coil in a predetermined position of a core and to prevent led-out ends from being buried in the core. [Solution to the Problem] A surface-mount inductor of the present invention comprises: a coil formed by winding a winding wire; and a core containing a magnetic powder and including the coil therein. The coil has opposite led-out ends, each of which is exposed on respective ones of opposed side surfaces of the core. Each of the led-out ends of the coil is connected to an external electrode formed on the core.
Abstract: The present invention provides a waveguide slot antenna which utilizes a waveguide as a feeding line and has a linear-shaped slot provided in a wall of the waveguide. The waveguide slot antenna is characterized in that it comprises a pair of polarized wave conversion members surrounding an outer periphery of the slot and divided by a slit intersecting the slot. The present invention can provide a waveguide slot antenna capable of radiating a circularly polarized wave with a satisfactory axial ratio characteristic, over a wide band, only by adding a simple component to a conventional waveguide slot antenna.
December 28, 2012
Date of Patent:
November 17, 2015
Kazuhisa Sano, Yukikazu Yatabe, Kazuhiro Ito
Abstract: A method of producing a surface-mount inductor by encapsulating a coil with an encapsulation material containing a resin and a filler using a mold die assembly is provided. In the method, a tablet and a coil are used. The tablet is prepared by preforming the encapsulation material into a shape having a flat plate-shaped portion and a pillar-shaped convex portion on a peripheral thereof. The coil is a wound conductive wire having a cross-section of rectangular-shape. The coil is placed on the tablet to allow both ends of the coil to extend along an outer side surface of the pillar-shaped convex portion of the tablet. The coil and the encapsulation material are integrated together while clamping the both ends of the coil between an inner wall surface of the mold die assembly and the outer side surface of the pillar-shaped convex portion of the tablet, to form a molded body.
Abstract: [OBJECT] It is an object to provide a dielectric waveguide filter with attenuation poles, which is capable of suppressing deterioration in a high band-side attenuation characteristic with respect to a low band-side attenuation characteristic. [SOLUTION] A dielectric waveguide filter comprises a plurality of dielectric waveguide resonators each having a rectangular parallelepiped-shaped dielectric block, periphery of which is covered by a conductor film. The dielectric waveguide resonators are configured to form a main coupling path, and a sub coupling path bypassing a part of the main coupling path. The part of the main coupling path bypassed by the sub coupling path includes at least one capacitive coupling path.
Abstract: The present invention provides a dielectric waveguide resonator comprising a pair of rectangular parallelepiped-shaped dielectric blocks being in contact with each other through respective contact surfaces thereof. The dielectric waveguide resonator has an outer periphery coated with an electrically conductive film except for the contact surfaces, and is configured to resonate in a TE mode. A probe composed of an electrically conductive film is formed on at least one of the contact surface. Thus, it becomes possible to provide a dielectric waveguide resonator having a simple structure, requiring no adjustment structure, and comprising a structure for conversion between a dielectric waveguide and a coaxial line.