Abstract: A multilayer substrate includes a multilayer body, an internal wire, land electrodes, and a ground electrode. The internal wire extends toward the land electrode from a position where the internal wire overlaps the land electrode when viewed from a first surface and is electrically connected to the land electrode by a via conductor. The internal wire is electrically connected to the ground electrode by a via conductor that is provided in a region from a position where a capacitor is located where the via conductor at least partially overlaps the land electrode when viewed from the first surface.

Abstract: A coil component includes a first coil and a second coil that magnetically couples with the coil and causes a negative inductance to be generated. The coil component further includes an electrode that is provided at a position adjacent to or in the vicinity of a port of each of the first and second coils.

Abstract: An electronic device includes an IC mounted on a substrate and a filter circuit connected to the IC. The filter circuit includes a coil component and a capacitor. The coil component includes a multilayer body, a first coil including a portion of multiple wiring patterns laminated in the multilayer body, a second coil provided on layers different from those of the first coil and including a portion of the multiple wiring patterns, and first, second and third electrodes provided on side surfaces. An opening of the first coil is at least partially overlapped with an opening of the second coil when viewed from a main surface direction. The third electrode is grounded via the capacitor. The first coil has an inductance lower than that of the second coil.

Abstract: A filter circuit includes a coil component, an inductor, and a capacitor. In the coil component, a first coil and a second coil are magnetically coupled. The inductor is electrically connected to a first end of the first coil and a second end of the second coil and is connected in parallel to the coil component. The capacitor is electrically connected between a ground electrode and an electrode electrically connected to a second end of the first coil and a second end of the coil.

Abstract: A circuit device includes a substrate, and a wiring pattern and a coil component on the substrate. The wiring pattern includes a first land electrode connected to a first electrode of the coil component and a second land electrode connected to a second electrode of the coil component. The wiring pattern includes a wiring line electrically connected to the land electrode at a position shifted along a first side surface from a center of the first side surface by a shifting value and a wiring line electrically connected to the land electrode at a position shifted along a second side surface from a center of the second side surface by a shifting value.

Abstract: A coil component includes a first coil and a second coil that are magnetically coupled to each other. The coil component includes a multilayer body, first wiring patterns, second wiring patterns, and third wiring patterns. The first coil includes a portion in which the first wiring patterns and the third wiring patterns are electrically connected to each other by a first via conductor and a second via conductor through the first wiring patterns and the third wiring pattern to connect the wiring patterns in parallel. The second coil includes a portion in which the second wiring patterns and the third wiring patterns are electrically connected to each other by a third via conductor and a fourth via conductor through the second wiring patterns and the third wiring pattern to connect the wiring patterns in parallel.

Abstract: A coil component includes first and second coils magnetically coupled with each other. The coil component includes a multilayer body, and first and second wiring patterns each having a rectangular or substantially rectangular shape. At least one of the first and second coils includes at least one combination of wiring patterns that are stacked on each other with a positional displacement so as to include an intersecting portion where corresponding sides of the wiring patterns intersect with each other as viewed from a direction of main surfaces.

Abstract: A multilayer substrate includes a multilayer body, an internal wire, land electrodes, and a ground electrode. The internal wire extends toward the land electrode from a position where the internal wire overlaps the land electrode when viewed from a first surface and is electrically connected to the land electrode by a via conductor. The internal wire is electrically connected to the ground electrode by a via conductor that is provided in a region from a position where a capacitor is located where the via conductor at least partially overlaps the land electrode when viewed from the first surface.

Abstract: A coil component includes a first coil and a second coil that are magnetically coupled to each other. The coil component includes a multilayer body, first wiring patterns, second wiring patterns, and third wiring patterns. The first coil includes a portion in which the first wiring patterns and the third wiring patterns are electrically connected to each other by a first via conductor and a second via conductor through the first wiring patterns and the third wiring pattern to connect the wiring patterns in parallel. The second coil includes a portion in which the second wiring patterns and the third wiring patterns are electrically connected to each other by a third via conductor and a fourth via conductor through the second wiring patterns and the third wiring pattern to connect the wiring patterns in parallel.

Abstract: A coil component includes a first coil and a second coil that magnetically couples with the coil and causes a negative inductance to be generated. The coil component further includes an electrode that is provided at a position adjacent to or in the vicinity of a port of each of the first and second coils.

Abstract: A circuit board mounted with a capacitor includes an electrode to connect one terminal of a capacitor, a first inductor including a wiring pattern that extends from a first end connected with the electrode to a second end across a region mounted with the capacitor, and a second inductor including a wiring pattern that extends from the first end connected with the electrode to a second end across the region mounted with the capacitor from the opposite side from the first inductor. In a plan view, the wiring pattern of the first inductor and the wiring pattern of the second inductor intersect with each other, and an angle defined by the wiring pattern of the first inductor and the wiring pattern of the second inductor is an angle other than a right angle.

Abstract: A circuit substrate includes a first electrode connecting a capacitance element, a first inductance element including a first interconnect that extends from one end connected to the first electrode to another end across a region at which the capacitance element is to be mounted, a second inductance element including a second interconnect that extends from one end connected to the first electrode to another end across the region at which the capacitance element is to be mounted from a side opposite to the first interconnect, an input terminal connected to the another end of the second interconnect, an output terminal connected to the another end of the first interconnect, and a second electrode that provides a capacitance between the output terminal and the second electrode, wherein the capacitance provided by the output terminal and the second electrode is equal to or larger than a capacitance of the capacitance element.

Abstract: A circuit substrate includes a first electrode connecting a capacitance element, a first inductance element including a first interconnect that extends from one end connected to the first electrode to another end across a region at which the capacitance element is to be mounted, a second inductance element including a second interconnect that extends from one end connected to the first electrode to another end across the region at which the capacitance element is to be mounted from a side opposite to the first interconnect, an input terminal connected to the another end of the second interconnect, an output terminal connected to the another end of the first interconnect, and a second electrode that provides a capacitance between the output terminal and the second electrode, wherein the capacitance provided by the output terminal and the second electrode is equal to or larger than a capacitance of the capacitance element.

Abstract: A circuit board mounted with a capacitor includes an electrode to connect one terminal of a capacitor, a first inductor including a wiring pattern that extends from a first end connected with the electrode to a second end across a region mounted with the capacitor, and a second inductor including a wiring pattern that extends from the first end connected with the electrode to a second end across the region mounted with the capacitor from the opposite side from the first inductor. In a plan view, the wiring pattern of the first inductor and the wiring pattern of the second inductor intersect with each other, and an angle defined by the wiring pattern of the first inductor and the wiring pattern of the second inductor is an angle other than a right angle.

Abstract: A metamaterial includes a plurality of first coiled resonators and a plurality of second coiled resonators, and an outer covering for fixing the positions of the first coiled resonators and the second coiled resonators. Each of the first coiled resonators and each of the second coiled resonators are disposed such that the central axes thereof differ from each other by 90 degrees. At the same time, adjacent first coiled resonators and second coiled resonators are disposed so as to be alternately linked in the shape of a chain. The first coiled resonators are disposed in a spatially continuous manner.

Abstract: A metamaterial that includes a metallic wire and a supporting member. The metallic wire has a length of substantially half the wavelength of electromagnetic waves, and is coiled in the shape of a spring. The supporting member fixes the metallic wire such that the central axis of the metallic wire is parallel in direction to an electric field generated between a signal line through which an electric current flows and a ground. The metallic wire placed in such manner resonates with electromagnetic waves having a wavelength approximately twice as long as the metallic wire, and exhibits a negative dielectric constant.

Abstract: An electric apparatus that includes a component having a conductive layer in a fixed range in the depth direction, the conductive layer including a particular region that is electromagnetically isolated from other regions. The electric apparatus further includes a metamaterial which exhibits a dielectric constant having an absolute value less than 1 and a magnetic permeability having an absolute value more than 1 with respect to a predetermined resonant wavelength in an electromagnetic field. The metamaterial is arranged so as to cut off the near resonant wavelength component of an electric current flowing through the conductive layer in the particular region, and at least part of the particular region is configured to radiate an electromagnetic wave.

Abstract: A unit of a metamaterial includes an uppermost part electrode, a lowermost part electrode, a first internal electrode, a second internal electrode, a third internal electrode, a fourth internal electrode, and a transmission line. The transmission line connects a section of the uppermost part electrode which extends in the ?z direction to a section of the lowermost part electrode which extends in the +z direction. The length of the transmission line is set to substantially ½ of a resonant wavelength. The first internal electrode and the fourth internal electrode are respectively placed so as to be opposed to the uppermost part electrode and the lowermost part electrode. The first internal electrode and the fourth internal electrode are not electrically connected directly to each other.

Abstract: A resonator having respective electrode planes of first and second internal electrodes disposed so as to be substantially parallel to a line of magnetic force of a magnetic field. In the resonator, respective electrode planes of first and second external electrodes are disposed so as to be substantially parallel to the line of magnetic force of the magnetic field in planes different from the electrode planes of the first and second internal electrodes.

Abstract: A metamaterial includes a plurality of first coiled resonators and a plurality of second coiled resonators, and an outer covering for fixing the positions of the first coiled resonators and the second coiled resonators. Each of the first coiled resonators and each of the second coiled resonators are disposed such that the central axes thereof differ from each other by 90 degrees. At the same time, adjacent first coiled resonators and second coiled resonators are disposed so as to be alternately linked in the shape of a chain. The first coiled resonators are disposed in a spatially continuous manner.