Title:
MULTIPLEXER, HIGH-FREQUENCY FRONT END CIRCUIT, AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/003273
Kind Code:
A1
Abstract:
A quadplexer (1) is provided with a filter (12) and a filter (22) having a higher passband frequency than the filter (12). The filter (12) comprises series resonators (121s-125s) arranged on a first route and parallel resonators (121p-124p) arranged on a route connecting the first route and a ground. A direction D connecting the tips of a plurality of electrode fingers constituting the individual resonators intersects an elastic wave propagation direction at a predetermined angle. The series resonator (121s) closet to a shared terminal (Port1) does not comprise first electrode fingers (variant fingers). The other series resonators (122s-125s) comprise first electrode fingers (variant fingers).
Inventors:
TAKAMINE YUICHI (JP)
Application Number:
PCT/JP2017/016746
Publication Date:
January 04, 2018
Filing Date:
April 27, 2017
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H9/72; H03H9/145; H03H9/64
Domestic Patent References:
| WO2015064238A1 | 2015-05-07 | |||
| WO2015182522A1 | 2015-12-03 |
Foreign References:
| JP2011182220A | 2011-09-15 | |||
| JP2016119569A | 2016-06-30 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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