FILTER

摘要

In a filter, LC parallel resonators are arranged along an x-axis direction of a multilayer body and include coils and capacitors, respectively. LC parallel resonators adjacent to each other in the x-axis direction are electromagnetically coupled to each other. Each of the coils includes line conductor layers disposed on an insulating layer, a first via-hole conductor that extends from the line conductor layers to a negative direction of a z-axis direction and that is electrically connected to one conductor layer of the corresponding one of the capacitors, and a second via-hole conductor that extends from the line conductor layers to the negative side of the z-axis direction and that is electrically connected to the other conductor layer of the capacitor. A coupling conductor layer provides a capacitance between two line conductor layers which are adjacent to each other in the x-axis direction.

主权项

1. A filter comprising:
a multilayer body including a plurality of insulating layers stacked on each other in a stacking direction; a plurality of LC parallel resonators that are arranged along a first direction which is perpendicular or substantially perpendicular to the stacking direction and that each include a coil and a capacitor; and at least one coupling conductor layer disposed on the insulating layer; wherein the LC parallel resonators which are adjacent to each other in the first direction are electromagnetically coupled to each other; each of the coils includes:
line conductor layers disposed on one of the plurality of insulating layers;a first via-hole conductor that extends from the line conductor layers to one side of the stacking direction and that is electrically connected to one of the plurality of conductor layers of the capacitor; anda second via-hole conductor that extends from the line conductor layers to one side of the stacking direction and that is electrically connected to the other one of the plurality of conductor layers of the capacitor; and the at least one coupling conductor layer provides a capacitance between two of the line conductor layers which are adjacent to each other in the first direction.