Band-pass filter
AssigneeMurata Manufacturing Co., Ltd.
InventorYutaka MASUDA
Life of this patent
Estimating the term…
Abstract
A capacitor of a certain LC resonator, among multiple LC resonators in a band-pass filter, is arranged at a side of one main surface in a stacking direction of a multilayer body of the band-pass filter and the capacitors of the remaining LC resonators are arranged at a side of the other main surface in the stacking direction of the multilayer body. One of a pair of capacitor electrodes of the capacitor of the certain LC resonator is grounded. The one capacitor electrode that is grounded covers at least the plurality of LC resonators, as viewed from the stacking direction of the multilayer body.
Claims7
A band-pass filter comprising:
- a multilayer body including a plurality of dielectric layers that are stacked on each other, capacitor electrodes and line electrodes provided on the plurality of dielectric layers, and a via inductor including a plurality of via electrodes that are connected to each other and that penetrate through the plurality of dielectric layers;
- wherein
- a plurality of LC resonators are arranged in a direction perpendicular or substantially perpendicular to a stacking direction of the multilayer body;
- each of the plurality of LC resonators includes an inductor including the via inductor being connected to a capacitor including a pair of the capacitor electrodes;
- in each of the plurality of LC resonators, one end of the inductor is connected to one of the pair of capacitor electrodes of the capacitor;
- the capacitor of at least one of the plurality of LC resonators is arranged at a side of one main surface in the stacking direction of the multilayer body and the capacitors of remaining ones of the plurality of LC resonators are arranged at a side of another main surface in the stacking direction of the multilayer body;
- and
- the other of the pair capacitor electrodes of the capacitor of the at least one of the plurality of LC resonators is grounded.
Dependencies are inferred from the claim text.