Title:
COMPOSITE LC RESONATOR AND BANDPASS FILTER
Document Type and Number:
WIPO Patent Application WO/2015/059964
Kind Code:
A1
Abstract:
This composite LC resonator is provided with: a ground electrode (G1) that is disposed on the first main surface (S1) side of a laminated body; a first capacitor electrode (Ep), which is disposed further toward the inner layer side than the ground electrode (G1), and which constitutes a first capacitor (Cp) with the ground electrode (G1); a first electrode (Esa) of a second capacitor; a second electrode (Esb) of the second capacitor, said second electrode constituting the second capacitor (Cs) with the first electrode (Esa) of the second capacitor; a via electrode (V1), which has one end thereof electrically connected to the first capacitor electrode (Ep), and a second end thereof electrically connected to the first electrode (Esa) of the second capacitor, and which constitutes a first inductor (L1); and a via electrode (V2), which has one end thereof electrically connected to the second electrode (Esb) of the second capacitor, and a second end thereof electrically connected to the ground electrode, and which constitutes a second inductor (L2). Consequently, an attenuation pole can be provided outside of a pass band, and the size and the height of the composite LC resonator are reduced with shield functions incorporated therein, and the inductors having high Q values provided therein.
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Inventors:
TANIGUCHI TETSUO (JP)
Application Number:
PCT/JP2014/069143
Publication Date:
April 30, 2015
Filing Date:
July 18, 2014
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H7/01; H03H7/075
Domestic Patent References:
| WO2007119356A1 | 2007-10-25 |
Foreign References:
| JP2013150100A | 2013-08-01 | |||
| JPH10190305A | 1998-07-21 |
Attorney, Agent or Firm:
Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
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