Abstract: A multiplexer includes a common terminal, a first terminal, a second terminal, and a third terminal, a first filter, a second filter, and a third filter. With a frequency f3 being defined as M×f1±N×f2 or M×f2±N×f1, M and N being natural numbers, f1 being a frequency included in a first passband of the first filter and f2 being a frequency included in a second passband of the second filter, at least a part of a range of frequency f3 overlaps a third passband of the third filter. No acoustic wave resonator is connected between the common terminal and a first parallel arm resonance circuit. A fractional bandwidth of the first parallel arm resonance circuit is smaller than a maximum value of a fractional bandwidth of each of at least one serial arm resonance circuit.
Abstract: A coaxial connector includes internal and external terminals, and an insulation member disposed between the terminals. The external terminal includes a holding portion that holds coaxial cables, and crimping portions. A crimping portion outermost in an arrangement direction of the cables is formed from a plate member bent to follow an outer circumference of the cable, and includes a connection portion connectable with the holding portion between both end portions in the arrangement direction. An inner hook extends inward in the arrangement direction from a point of intersection between the connection portion connectable with the holding portion and a virtual straight line orthogonal to the arrangement direction and passing a center of the cable, in a cross-sectional view orthogonal to a longitudinal direction of the cable. An outer hook extends outward in the arrangement direction from the point of intersection. The inner hook is shorter than the outer hook.
Abstract: A multiplexer includes a common terminal, a first terminal, a second terminal, and a third terminal, a first filter, a second filter, and a third filter. With a frequency f3 being defined as M×f1±N×f2 or M×f2±N×f1, M and N being natural numbers, f1 being a frequency included in a first passband of the first filter and f2 being a frequency included in a second passband of the second filter, at least a part of a range of frequency f3 overlaps a third passband of the third filter. No acoustic wave resonator is connected between the common terminal and a first parallel arm resonance circuit. A combined capacitance of the first parallel arm resonance circuit is higher than a minimum value of a combined capacitance of each of at least one first serial arm resonance circuit.
Abstract: A coil component includes a winding core that includes a winding core portion, a first flange portion, and a second flange portion. The coil component further includes a plate core that has a main surface facing the winding core portion, the first flange portion, and the second flange portion, that extends between the first flange portion and the second flange portion, and that is secured to the winding core by using adhesive. Each of the first flange portion and the second flange portion has an upper surface that faces the main surface of the plate core. Recessed portions are formed on the corresponding upper surfaces. Protrusions may be formed in corresponding regions in which the recessed portions are formed.
Abstract: An electronic component includes an element main body and at least a pair of outer electrodes on the element main body. The outer electrodes each include an underlying electrode layer positioned so as to be in contact with the element main body and a plating layer positioned so as to be in contact with the underlying electrode layer. The plating layer includes a Ni—Sn alloy plating layer positioned so as to be in contact with the underlying electrode layer.
Abstract: An emitter mesa and a base electrode are arranged on a base mesa on a substrate. A base wiring line on the base electrode is connected to the base electrode via base openings. The emitter mesa includes a plurality of emitter fingers having a planar shape that is long in one direction. The emitter fingers include first and second emitter fingers. The base openings are arranged so as to be spaced apart in a longitudinal direction from first end portions of the first emitter fingers and are not arranged in a region obtained by extending the second emitter finger in the longitudinal direction. An end portion of the second emitter finger that is near the base openings protrudes in the longitudinal direction beyond the end portions of the first emitter fingers that are near the base openings.
Abstract: A light-emitting ceramic that includes a pyrochlore type compound that contains 0.01 mol % or more of Bi with respect to 100 mol % of ABOW, and one co-added element selected from the group consisting of Mg, Ca, Zn, Sr, Ba, Sc, Ga, In, Yb, and Lu. The A site contains at least one selected from the group consisting of La, Y, and Gd in a total amount of 80 mol % or more, B contains at least Sn, and W is a positive number for maintaining electrical neutrality.
Abstract: A printed wiring board comprises a sheet-shaped core base material containing a magnetic material, a coil disposed inside the core base material, and an external circuit layer disposed on at least one of first and second surfaces of the core base material opposite to each other.
Abstract: A power amplification module includes a first transistor which amplifies and outputs a radio frequency signal input to its base; a current source which outputs a control current; a second transistor connected to an output of the current source, a first current from the control current input to its collector, a control voltage generation circuit connected to the output and which generates a control voltage according to a second current from the control current; a first FET, the drain being supplied with a supply voltage, the source being connected to the base of the first transistor, and the gate being supplied with the control voltage; and a second FET, the drain being supplied with the supply voltage, the source being connected to the base of the second transistor, and the gate being supplied with the control voltage.
Abstract: The present disclosure is to improve the power added efficiency of a power amplifier at high output power. The power amplifier includes: a first capacitor with a radio frequency signal input to one end thereof; a first transistor whose base is connected to the other end of the first capacitor to amplify the radio frequency signal; a bias circuit for supplying bias to the base of the first transistor; and a second capacitor with one end connected to the base of the first transistor and the other end connected to the emitter of the first transistor.
Abstract: A breast pump (100) includes a left cup portion (1), a right cup portion (2), a tube (15, 16, 99), a pump (30), a container (14), a first switching valve (V1), a second switching valve (V1), and a control unit (70). The internal space of the tube (99) forms a passage (10). The passage (10) connects a first separator (S1) that communicates with a closed space (51), a second separator (S2) that communicates with a closed space (52), a discharge hole (31) of the pump (30), and a suction hole (32) of the pump (30). The first switching valve (V1) is provided within the tube (99) that is in the middle of the passage (10). The second switching valve (V2) is also provided within the tube (99) that is in the middle of the passage (10).
Abstract: A mobile terminal includes an operation surface, a capacitance sensor having a capacitance that changes in response to a touch operation on the operation surface and a touch-operation detection IC that detects the touch operation based on the change in capacitance in the capacitance sensor. When the operation surface is deformed, the touch-operation detection IC obtains a capacitance of the capacitance sensor which has changed due to the deformation of the operation surface, and grasps the change in capacitance of the capacitance sensor, made due to the touch operation, with the obtained capacitance taken as a new reference.
Abstract: A suction device (1) having a suction port (90) exposed outside, a flow passage (91 to 98) communicating with the suction port (90), and a discharge port (99) through which fluid is discharged from the flow passage (91 to 98) includes a diaphragm (83) having one principal surface facing a pump chamber (98) and the other principal surface opposed to the one principal surface, and a piezoelectric element (81) attached to the diaphragm (83) to displace the one principal surface of the diaphragm (83) relative to the pump chamber (98). The one principal surface and the other principal surface of the diaphragm (83) face in a direction different from a direction to which the suction port (90) faces.
Abstract: A semiconductor apparatus includes the following elements. A substrate includes a ground portion to which a ground potential is supplied. A semiconductor chip is mounted on the substrate and includes first and second output terminals, a first terminator, and a ground terminal. First and second amplifiers are respectively formed in first and second regions of the semiconductor chip and respectively amplify first and second input signals of first and second frequency bands and output first and second amplified signals from the first and second output terminals via first and second output wires. A first harmonic termination circuit includes a first wire which electrically connects the first terminator and the ground portion. A ground wire is disposed between the first wire and the second output wire in a plan view of a main surface of the semiconductor chip and electrically connects the ground terminal and the ground portion.
Abstract: An electronic component includes at least one coil including a winding part and lead-out end parts at both ends thereof, and a magnetic molded body having a mounting surface with the coil incorporated therein. The lead-out end parts are led out toward the mounting surface such that end surfaces of the lead-out end parts are arranged on the same plane as the mounting surface.
Abstract: A filter device includes: a common terminal; a first input/output terminal; a second input/output terminal; a first filter connected to a first path that connects the common terminal and the first input/output terminal, and having a passband that is a first band; a second filter connected to a second path that connects the common terminal and the second input/output terminal, and having a passband that is a second band having a frequency range that is different from and does not overlap a frequency range of the first band; a first switch element connected between a first node on the first path between the first filter and the first input/output terminal and a second node on the second path between the second filter and the second input/output terminal; and a second switch element on the second path, which is connected between the second node and the second input/output terminal.
Abstract: Transistors including semiconductor regions where operating current flows are provided above a substrate. Operating electrodes of conductive material having thermal conductivity higher than the semiconductor regions and contacting the semiconductor regions to conduct operating current to the semiconductor regions are disposed. A conductor pillar for external connection contains contact regions where the semiconductor regions and the operating electrodes contact, and is electrically connected to the operating electrodes. The contact regions are disposed in a first direction. Each contact region has a planar shape long in a second direction orthogonal to the first direction. A first average distance, obtained by averaging distances in the second direction from each end portion of the contact region in the second direction to an edge of the conductor pillar across the contact regions, exceeds an average distance value in a height direction from the contact region to a top surface of the conductor pillar.
Abstract: A winding inductor component includes a core having a columnar shaft portion and a pair of support portions provided at both ends of the shaft portion. The wiring inductor component further includes terminal electrodes provided on the pair of support portions, respectively, and being non-magnetic bodies, and a wire wound around the shaft portion and having both end portions connected to the terminal electrodes of the pair of support portions.
Abstract: A multipolar connector capable of easily assembling components thereof without requiring high positional accuracy for portions of the components that are to be fixed to each other. A multipolar connector is a multipolar connector for use in electrically connecting circuit boards to each other. The multipolar connector includes an external terminal that is fixed to a circuit board, an insulating member that is fixed to the external terminal, and internal terminals that are respectively fitted to grooves, which are formed in the insulating member, so as to be partially exposed through the insulating member. The insulating member is placed such that the bottom surface thereof is in contact with an outer frame portion of the external terminal and fixed to the external terminal as a result of the top surface thereof being pressed by bending portions of the external terminal toward the outer frame portion.
Abstract: Provided is a battery module including a battery part including one battery cell or a plurality of battery cells connected in series, first and second leads respectively led out from a positive electrode and a negative electrode of the battery part, a first FET in which the first FET is an N-channel type and a drain of the first FET is connected to the first lead and a source of the first FET is connected to a positive output terminal, a negative output terminal connected to the second lead, a pre-discharge circuit provided in parallel with a drain-source path of the first FET and is configured to raise a potential of the positive output terminal prior to an ON state of the first FET at discharging, and a forced OFF circuit configured to turn off the first FET by short-circuiting between a gate and the source of the first FET.