Multiplexer, radio-frequency front-end circuit, and communication device
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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Jun 28, 2022
Grant Date -
Feb 27, 2020
app pub date -
Oct 29, 2019
filing date -
Oct 29, 2019
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A multiplexer includes a filter located between a common terminal and an individual terminal, and a filter that is located between the common terminal and an individual terminal and that has a pass band whose frequency is lower than the pass band of the filter. The filter includes serial arm resonators provided on the first path connecting the common terminal to the individual terminal. Each of the serial arm resonators includes a piezoelectric substrate and an IDT electrode which use leaky waves as principal acoustic waves. The occurrence frequency of the Rayleigh wave response of the serial arm resonator is different from that of the serial arm resonator.
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