摘要:
A method of manufacturing a laminated electronic part includes fabricating first and second laminated sheets by laminating an insulating function layer made of an unsintered ceramic material and a conductor layer, having a plurality of conductors two-dimensionally arranged in a vertical direction and in a horizontal direction to make up part of circuit components; cutting the first and second laminated sheets into sticks to create a plurality of first and second laminate sticks; fabricating a third laminated sheet by rotating the second laminate sticks by 90°, arranging the second laminate sticks to be each sandwiched between the first laminate sticks, and thermocompression bonding them for integration; singulating the third laminated sheet into chips and creating sintered bodies by sintering the unsintered chips to integrate the first laminate with the second laminate.
摘要:
A high frequency filter comprises a first resonator and a second resonator provided inside a layered substrate. The first and second resonators are inductively coupled and capacitively coupled to each other through a first capacitor and a second capacitor connected to each other in parallel. The first capacitor is formed using first and third electrodes and a dielectric layer. The first electrode is connected to the first resonator via a through hole. The third electrode is connected to the second resonator and opposed to the first electrode. The second capacitor is formed using second and fourth electrodes and the dielectric layer. The second electrode is connected to the second resonator via a through hole. The fourth electrode is connected to the first resonator and opposed to the second electrode.
摘要:
A high frequency filter incorporates: an unbalanced input/output terminal; two balanced input/output terminals; two resonators respectively provided between the unbalanced input/output terminal and the two balanced input/output terminals; and a layered substrate for integrating components of the high frequency filter. The two resonators are inductively coupled to each other, and are also capacitively coupled to each other through two capacitors. Each of the two capacitors is formed using a pair of first and second electrodes and a dielectric layer. The first electrode is connected to one of the resonators via a through hole. The second electrode is connected to the other of the resonators and opposed to the first electrode forming the pair with the second electrode, the dielectric layer being disposed between the second electrode and the first electrode.
摘要:
A method of manufacturing a laminated electronic part includes fabricating first and second laminated sheets by laminating an insulating function layer made of an unsintered ceramic material and a conductor layer, having a plurality of conductors two-dimensionally arranged in a vertical direction and in a horizontal direction to make up part of circuit components; cutting the first and second laminated sheets into sticks to create a plurality of first and second laminate sticks; fabricating a third laminated sheet by rotating the second laminate sticks by 90°, arranging the second laminate sticks to be each sandwiched between the first laminate sticks, and thermocompression bonding them for integration; singulating the third laminated sheet into chips and creating sintered bodies by sintering the unsintered chips to integrate the first laminate with the second laminate.
摘要:
A bandpass filter module includes a mounting board and a BPF chip mounted on a surface thereof. The BPF chip includes three or more resonators; a first-stage resonator located closest to an input terminal, a final-stage resonator located closest to an output terminal, and a middle-stage resonator connected between the first-stage and the final-stage resonators and located in a chip middle zone. The mounting board includes an area overlapping with the chip middle zone, viewed in plan, defining a ground-free space in which no ground electrode is disposed. The ground-free space is formed at least from the surface of the mounting board to a depth position at which a topmost internal wiring layer is located. The middle-stage resonator is prevented from being coupled to ground electrodes on the mounting board and from a lower Q-value and increased insertion loss.
摘要:
An electronic component includes a layered substrate including a plurality of dielectric layers stacked, and three resonators provided within the layered substrate. One of the three resonators includes resonator-forming conductor layers of a first type and a second type that each have a short-circuited end and an open-circuited end, relative positions of the short-circuited end and the open-circuited end being reversed between the first and second types. The resonator-forming conductor layers of the first type and the second type are arranged to be adjacent to each other in a direction in which the plurality of dielectric layers are stacked.
摘要:
A high frequency filter comprises a first resonator and a second resonator provided inside a layered substrate. The first and second resonators are inductively coupled and capacitively coupled to each other through a first capacitor and a second capacitor connected to each other in parallel. The first capacitor is formed using first and third electrodes and a dielectric layer. The first electrode is connected to the first resonator via a through hole. The third electrode is connected to the second resonator and opposed to the first electrode. The second capacitor is formed using second and fourth electrodes and the dielectric layer. The second electrode is connected to the second resonator via a through hole. The fourth electrode is connected to the first resonator and opposed to the second electrode.
摘要:
A bandpass filter includes a layered structure including a plurality of stacked dielectric layers, and first to third resonators provided within the layered structure. In terms of circuit configuration, the second resonator is located between the first and third resonators. The first resonator includes a first inductor and a first capacitor. The second resonator includes a second inductor and a second capacitor. The third resonator includes a third inductor and a third capacitor. The second inductor is disposed at a position different from that of each of the first and third inductors in the stacking direction of the dielectric layers. The second inductor is lower in inductance than the first and third inductors. The second capacitor is higher in capacitance than the first and third capacitors.
摘要:
A high frequency filter incorporates first to third resonators provided inside a layered substrate. The first and third resonators are adjacent to each other and inductively coupled to each other. The second and third resonators are also adjacent to each other and inductively coupled to each other. The first and second resonators are not adjacent to each other but are capacitively coupled to each other through a conductor layer for capacitive coupling. The conductor layer for capacitive coupling incorporates: a first portion for forming a first capacitor between itself and the first resonator; a second portion for forming a second capacitor between itself and the second resonator; and a third portion having an end connected to the first portion and the other end connected to the second portion, the ends being opposed to each other in the longitudinal direction. The width of at least part of the third portion is smaller than the width of each of the first portion and the second portion.
摘要:
A bandpass filter module includes a mounting board and a BPF chip mounted on a surface thereof. The BPF chip includes three or more resonators; a first-stage resonator located closest to an input terminal, a final-stage resonator located closest to an output terminal, and a middle-stage resonator connected between the first-stage and the final-stage resonators and located in a chip middle zone. The mounting board includes an area overlapping with the chip middle zone, viewed in plan, defining a ground-free space in which no ground electrode is disposed. The ground-free space is formed at least from the surface of the mounting board to a depth position at which a topmost internal wiring layer is located. The middle-stage resonator is prevented from being coupled to ground electrodes on the mounting board and from a lower Q-value and increased insertion loss.