Twin dual mode filters with reflectors between transducers being electrically connected between DMS tracks

摘要

PCT No. PCT/DE97/01878 Sec. 371 Date Mar. 12, 1999 Sec. 102(e) Date Mar. 12, 1999 PCT Filed Aug. 28, 1997 PCT Pub. No. WO98/12807 PCT Pub. Date Mar. 26, 1998Twin dual mode filter with DMS filters have an input and output transducer (2; 12) per DMS track (A, B) within reflectors (3, 3) and further reflectors (7, 11) between the transducers that are respectively interconnected to one of the transducers. The reflectors (7, 11) of the input or, respectively, output side are respectively connected to one another via interconnects (8, 8). The DMS tracks (A, B) are frequency-shifted relative to one another such that the high-frequency resonance of the low-frequency track (B) falls onto the low-frequency resonance of the high-frequency track (A).