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1. (WO2017176856) SAW FILTER WITH A LARGE BANDWIDTH

Pub. No.:    WO/2017/176856    International Application No.:    PCT/US2017/026096
Publication Date: Fri Oct 13 01:59:59 CEST 2017 International Filing Date: Thu Apr 06 01:59:59 CEST 2017
IPC: H03H 9/00
H03H 9/145
H03H 9/64
Applicants: SNAPTRACK, INC.
Inventors: DENGLER, Thomas
BAUER, Dr. Thomas
Title: SAW FILTER WITH A LARGE BANDWIDTH
Abstract:
A SAW filter arrangement (FA) with a large bandwidth is specified, wherein a first filter (F1) and a second filter (F2) are connected in parallel between a first node (K1) and a second node (K2). The first filter (F1) and the second filter (F2) are both SAW filter configurations that are configured as DMS filters and both comprise two DMS tracks each, connected in series (S11, S12; S21, S22). The two filters (F1, F2) have different center frequencies and create a common passband together. The filter arrangement may comprise a serial resonator (RS) and shunting coils (L1, L2). Significant figure: Fig. 5, 4