Patent ID: 9306529
Filing Date: 2016-04-05
CPC Classification: H01P,H03H

Claim Text:
1. A band pass filter comprising: a plurality of resonators, at least one of the plurality of resonators including: the line electrode has a ring-shaped configuration, as viewed in a stacking direction of the plurality of dielectric layers; and a first end of a first resonator of the plurality of resonators is connected to an input electrode and a second end of the first resonator of the plurality of resonators is connected to a ground, a first end of a second resonator of the plurality of resonators is connected to an output electrode and a second end of the second resonator of the plurality of resonators is connected to the ground, and a first end of a third resonator of the plurality of resonators is connected to the first resonator of the plurality of resonators via a first coupling capacitor and to the second resonator of the plurality of resonators via a second coupling capacitor and a second end of the third resonator of the plurality of resonators is connected to the ground.