ACOUSTIC WAVE DEVICES AND MODULES COMPRISING SAME

ACOUSTIC WAVE DEVICES AND MODULES COMPRISING SAME

An acoustic wave device includes a band pass filter having a plurality of series resonators and a plurality of parallel resonators. The plurality of series resonators include a first series resonator and a second series resonator. The first series resonator has a first attenuation pole and a second...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: KUWAHARA, Eiji, SHIOI, Shinichi
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
RESONATORS
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Beschreibung
Zusammenfassung:An acoustic wave device includes a band pass filter having a plurality of series resonators and a plurality of parallel resonators. The plurality of series resonators include a first series resonator and a second series resonator. The first series resonator has a first attenuation pole and a second attenuation pole having an attenuation amount that is less than or equal to half of that of the first attenuation pole. The second series resonator includes a third attenuation pole and a fourth attenuation pole. The third attenuation pole and the fourth attenuation pole has an attenuation amount less than that of the first attenuation pole and greater than that of the second attenuation pole.