Siemens Aktiengesellschaft

Hans P Grassl

Peter Zibis

For a convolver to be operated with an input signal E and with two reference signals A and B, two convolver tracks (or four tracks given self-convolution compensation) are required having input transducers connected in parallel for the input signal E in comparison to the transducers for input of the reference signals A and B. All transducers have fundamentally a same design. However, modified split-finger transducers with floating fingers are provided for the input signal transducers, whereas non-modified split-finger transducers are provided for the reference signals.

Convolver arangement with acoustic waves

A surface-wave resonator filter having at least two reflector structures and at least one interdigital transducer. At least a portion of one of the reflector structures has interruptions in the metallization strips thereof to define subsections of the metallization strip. Connecting metallizations are provided parallel to the wave propagation direction x between neighboring sub-sections of neighboring sub-divided metallization strips to electrically connect the neighboring sub-sections such that no two sub-sections of the same sub-divided metallization strip are electrically connected.

Growing community of inventors

Zorneding, Germany

Hans P Grassl