Filter

Patent metadata

Field	Value
Publication number	US-9178484-B2
Application number	US-201514644321-A
Country	US
Kind code	B2
Filing date	Mar 11, 2015
Priority date	Sep 19, 2012
Publication date	Nov 3, 2015
Grant date	Nov 3, 2015

Abstract

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.

First claim

What is claimed is:

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 of the plurality of LC parallel resonators includes a coil and a capacitor including a plurality of conductor layers; and
at least one coupling conductor l…

Assignees

• Murata Manufacturing Co

Inventors

• Masuda Yutaka

Classifications

• H03H2001/0085

  Electricity · mapped topic

• H03H7/0115 Primary

  Electricity · mapped topic

• H03H7/1775

  Electricity · mapped topic

• H03H7/09 Primary

  Electricity · mapped topic