Title:
HIGH FREQUENCY MODULE, FRONT END MODULE, AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/044034
Kind Code:
A1
Abstract:
A high frequency module (10) receives signals in a first frequency band and signals in a second frequency band at one time. The high frequency module is provided with: a switch circuit (11) having selection terminals (110a, 110b); a filter (13A) that passes the signals in the first frequency band; a filter (13B) that passes the signals in the second frequency band; a phase adjustment circuit (12A) connected to the selection terminal (110a) and the filter (13A); and a phase adjustment circuit (12B) connected to the selection terminal (110b) and the filter (13B). The filter (13A) has an acoustic wave resonator that is formed on a piezoelectric substrate (100A), the filter (13B) has an acoustic wave resonator that is formed on a piezoelectric substrate (100B), a part of a circuit element constituting the phase adjustment circuit (12A) is formed on the substrate (100A), and a part of a circuit element constituting the phase adjustment circuit (12B) is formed on the substrate (100B).
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Inventors:
MIYAZAKI DAISUKE (JP)
Application Number:
PCT/JP2018/016831
Publication Date:
March 07, 2019
Filing Date:
April 25, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H04B1/40; H03H7/38; H03H7/46; H03H9/17; H03H9/70; H03H9/72; H04B1/00
Domestic Patent References:
| WO2015041125A1 | 2015-03-26 |
Foreign References:
| JP2009225094A | 2009-10-01 | |||
| JP2006295434A | 2006-10-26 | |||
| JP2016140110A | 2016-08-04 | |||
| JPH09172340A | 1997-06-30 | |||
| JP2017017520A | 2017-01-19 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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