Title:
HIGH-FREQUENCY MODULE
Document Type and Number:
WIPO Patent Application WO/2016/181701
Kind Code:
A1
Abstract:
A transmission filter unit in this high-frequency module has: a plurality of serial arm resonators that are connected in series to a serial arm for connecting a common terminal and a transmission terminal; a plurality of parallel arm resonators that are connected in series to each of a plurality of parallel arms for connecting between the serial arm and a ground; a first inductor that is connected between the ground and a connection end for connecting at least two parallel arm resonators from among the plurality of parallel arm resonators; and a second inductor that is connected between the ground and one parallel arm resonator from among the plurality of parallel arm resonators, the one parallel arm resonator being different from the at least two parallel arm resonators. A configuration is adopted in which: the second inductor, and at least one selected from the group consisting of an antenna-side matching element, a transmission-side matching element, and part of the serial arm in the transmission filter unit, are electromagnetically coupled; and the first inductor and the second inductor are prevented from electromagnetically coupling with each other.
Inventors:
KATO MASANORI (JP)
MIZOGUCHI SHINYA (JP)
SUGAYA YUKITERU (JP)
MIZOGUCHI SHINYA (JP)
SUGAYA YUKITERU (JP)
Application Number:
PCT/JP2016/057913
Publication Date:
November 17, 2016
Filing Date:
March 14, 2016
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H9/145; H03H9/72; H03H9/25
Domestic Patent References:
| WO2012108254A1 | 2012-08-16 | |||
| WO2015019722A1 | 2015-02-12 |
Foreign References:
| JP2015033080A | 2015-02-16 |
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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