Multiplexer, transmission device, reception device, high-frequency front end circuit, communication device and impedance matching method for multiplexer
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United States of America
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Jan 21, 2020
Grant Date -
May 9, 2019
app pub date -
Dec 17, 2018
filing date -
Dec 17, 2018
priority date (Note) -
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Abstract
A multiplexer includes elastic wave filters with different pass bands, a common terminal to which an inductance element is serially connected in a connection path between an antenna element and the common terminal; and an inductance element. Among the elastic wave filters, a reception input terminal of a first reception filter is connected to the common terminal via the inductance element and is connected to a parallel resonator. Transmission output terminals of transmission filters and a reception input terminal of a second reception filter are connected to the common terminal, are connected to series resonators, and are not connected to parallel resonators.
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