Surface-acoustic-wave duplexer with improved isolation

1. Field of the Invention A duplexer has four surface-acoustic-wave resonators, forming two filters, integrated on a piezoelectric substrate. The surface-acoustic-wave resonators are laid out so that the two resonators with intermediate resonance frequencies are separated from each other by one or b...

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Bibliographische Detailangaben

1. Verfasser:	Noguchi, Kazushige
Format:	Patent
Sprache:	eng
Online-Zugang:	Volltext bestellen
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