Title:
FILTER, DUPLEXER, AND COMMUNICATION MODULE
Document Type and Number:
Japanese Patent JP2013123270
Kind Code:
A
Abstract:
To provide a filter in which an attenuation pole can be placed at a suitable frequency position in a high frequency band and which has low-loss.
A filter comprises: a plurality of series resonators connected to signal lines in series; and a plurality of parallel resonators connected to the signal lines in parallel. In the filter, at least two parallel resonators are connected in parallel to the signal lines between the two series resonators among the plurality of series resonators, and inductors are connected to the two parallel resonators in series respectively and the inductors have inductance different from each other.
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Inventors:
HARA MOTOAKI
INOUE SHOGO
IWAKI MASAFUMI
TSUTSUMI JUN
UEDA MASANORI
INOUE SHOGO
IWAKI MASAFUMI
TSUTSUMI JUN
UEDA MASANORI
Application Number:
JP2013031288A
Publication Date:
June 20, 2013
Filing Date:
February 20, 2013
Export Citation:
Assignee:
TAIYO YUDEN KK
International Classes:
H03H9/64; H03H9/17; H03H9/25; H03H9/56
Attorney, Agent or Firm:
Ikeuchi, Sato & Partners