Accession Number:



Investigation of Voltage-Activated BAW Devices and Filters

Descriptive Note:

[Technical Report, Final Report]

Corporate Author:

University of California - Santa Barbara

Personal Author(s):

Report Date:


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The overarching goal of this project was to better understand and exploit voltage-induced piezoelectricity in thin-film strontium titanate STO and barium-strontium titanate BST, with the ultimate objective of creating high-performance, reconfigurable filters and frequency-agile RF components. Unlike conventional BAW technology, the piezoelectric coupling in BST is controlled by an applied DC field. In the absence of a DC field no acoustic resonance is observed when a DC field is applied the device becomes piezoelectrically active and acts like a high-QBAW resonator, a fundamental building block for frequency-selective circuits.

Subject Categories:

  • Electricity and Magnetism

Distribution Statement:

[A, Approved For Public Release]