E
Ekkehard Dr-i Ehrmann-falkenau
Researcher at Siemens
Publications - 2
Ekkehard Dr-i Ehrmann-falkenau is an academic researcher from Siemens. The author has contributed to research in topics: Signal & Surface acoustic wave. The author has co-authored 2 publications.
Papers
More filters
Patent
TV-IF-filter for quasi-/parallel sound use.
TL;DR: In this paper, a television IF filter for quasi-parallel sound applications, with an input transducer (EWI) for the video signal and an output transducers (AWIV-V) connected in parallel therewith, for the sound and picture carrier signal, is presented.
Patent
Acoustic surface wave filter.
Karlheinz Dipl-math Rott,Wilfried Dipl-math Schott,Peter Zibis,Ekkehard Dr-i Ehrmann-falkenau +3 more
TL;DR: In this paper, an electric surface acoustic wave filter with platelet-shaped substrate of monocrystalline piezo-electric material, one substrate side of which carries interdigital transducers (IW3, IW2) with metallic electrode fingers meshing with one another in a manner of a comb and with busbars (7, 15) and (8, 9), respectively, for exciting and coupling out the surface acoustic waves, the electrode fingers of equal polarity in each case being in contact with a busbar common to these electrode fingers.