FRONT END MODULE

A front end module includes a filter portion including filters each including at least one bulk-acoustic wave resonator including a first electrode, a piezoelectric layer, and a second electrode stacked in order, and the filters each have a different allocated passband such that a frequency band of...

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Bibliographische Detailangaben
Hauptverfasser:	PARK, Tah Joon, KIM, Sung Tae, JEUNG, Won Kyu
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY ELECTRICITY IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS RESONATORS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A front end module includes a filter portion including filters each including at least one bulk-acoustic wave resonator including a first electrode, a piezoelectric layer, and a second electrode stacked in order, and the filters each have a different allocated passband such that a frequency band of each passband overlaps a portion of a frequency band of an adjacent passband; and a switch portion to be selectively connected to the filters to form a path of a wireless frequency signal.