Title:
HIGH FREQUENCY FILTER, MULTIPLEXER, HIGH FREQUENCY FRONTEND CIRCUIT, AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/064990
Kind Code:
A1
Abstract:
This high frequency filter (1) is provided with series-arm resonators (S11 and S12) and parallel-arm resonators (P11 and P12) as elastic wave resonators, and at least one inductor. Capacitive components of the elastic wave resonators, together with the inductor, or together with the inductor and a capacitor, constitute a LPF (12) and a HPF (13) as hybrid filters, wherein at least one of the inductors include inductors (L12 and L13) as inductors as mounted component.
More Like This:
| JPS62115 | SURFACE ACOUSTIC WAVE FILTER |
| WO/2001/069782 | DUPLEXER WITH IMPROVED HARMONIC SUPPRESSION |
Inventors:
KIDO SYUNSUKE (JP)
Application Number:
PCT/JP2018/030632
Publication Date:
April 04, 2019
Filing Date:
August 20, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H9/64; H03H7/075; H03H9/02; H03H9/25; H03H9/54; H03H9/72; H04B1/00; H04B1/52
Domestic Patent References:
| WO2016013659A1 | 2016-01-28 | |||
| WO2010116776A1 | 2010-10-14 |
Foreign References:
| JP2006324489A | 2006-11-30 | |||
| JP2017063315A | 2017-03-30 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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