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Martin; Guenter
Dresden, DE
No. of patents:

Patent Number Title Of Patent Date Issued
8004147 Waveguide components on the basis of acoustic surface waves, and their use August 23, 2011
The invention relates to waveguide components based on acoustic surface waves, comprising at least one interdigital converter for exciting acoustic surface waves in a piezoelectric substrate or a piezoelectric layer. The object of the invention is to change known waveguide components
7973449 Transducer for surface acoustic waves and a resonator and a filter having said transducer July 5, 2011
A transducer for surface acoustic waves, and a resonator and a filter for surface acoustic waves having the transducer are provided. The transducer for surface acoustic waves has cells containing two electrode fingers per cell, wherein the transducer exhibits unidirectional behavior for
7847647 Oscillator circuit with acoustic single-port surface wave resonators December 7, 2010
An oscillator circuit includes a combination of two frequency-determining elements, designed as single-port surface wave resonators with interdigital converters, and one active electronic circuit. The two single-port surface wave resonators are connected to each other, avoiding induc
7692517 Oscillator with acoustic surface wave resonators April 6, 2010
An oscillator or a sensor comprising a unit including two frequency determining elements each of which comprises at least one interdigital converter for acoustic surface waves and a back-coupling circuit comprising an amplifier, wherein the frequency determining elements are distingu
6859117 Resonator filter cascade February 22, 2005
A resonator filter cascade has resonator structures disposed adjacent to one another and form a waveguide for acoustic surface waves, and coupling transducers. The present invention changes resonator filter cascades so that the insertion attenuation is reduced by decreasing the attenuati
6211600 Surface acoustic wave component April 3, 2001
An improvement of a surface acoustic wave component is disclosed. Surface acoustic wave components of the known type are changed in such a way that the dependency of the insertion loss and/or group delay time on the frequency as asymmetric function in relation to the center frequency can

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