Search for dissertations about: "John Berge"
Found 3 swedish dissertations containing the words John Berge.
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1. Switchable and tunable bulk acoustic wave resonators based on BaxSr1-xTiO3 thin films
Abstract : The main focus of this thesis is the study of a novel microwave component, the tunable thin film bulk acoustic wave resonator (TFBAR), based on ferroelectric BaxSr1-xTiO3 thin films. Conventional fixed frequency TFBARs, widely used for filtering applications in wireless communication systems, are based on ordinary piezoelectrics. READ MORE
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2. Tunable Bulk Acoustic Wave Resonators Based on BaxSr1-xTiO3 Thin Films
Abstract : The main focus of this thesis is the study of a novel component based on ferroelectric BaxSr1−xTiO3 thin films – the tunable thin film bulk acoustic resonator (TFBAR). The tunable TFBAR utilizes a dc field induced piezoelectric effect in the ferroelectric film, in contrast to conventional fixed frequency TFBARs, widely used for filtering applications in wireless communication systems,which are based on ordinary piezoelectric materials. READ MORE
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3. Origin of Goe Range iron formations and iron ores with emphasis on genetic implications of phosphorous and alumina distribution
Abstract : .... READ MORE