Piezoelectric Transmitter
AssigneeThe Board of Trustees of the Leland Stanford Junior University
InventorsMark A. Kemp, Matthew A. Franzi, Erik N. Jongewaard, Emilio A. Nanni, Andrew A. Haase
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Abstract
A piezoelectric dipole transmitter is provided that includes a piezoelectric element, an insulating support disposed at a midpoint of said piezoelectric element, or along the piezoelectric element, an external capacitance driver, and an external modulation capacitance disposed proximal to a first end of the piezoelectric element, where the driver capacitance is driven by a signal appropriate to excite a length-extensional acoustic mode of the piezoelectric element, where the piezoelectric element resonates at a piezoelectric element resonance frequency to radiate energy as an electric dipole.
Claims12
1) A piezoelectric dipole transmitter, comprising:
- a) a piezoelectric element;
- b) an insulating support disposed at a midpoint of said piezoelectric element, or along said piezoelectric element;
- c) an external capacitance driver;
- and
- d) an external modulation capacitance disposed proximal to a first end of said piezoelectric element, wherein said driver capacitance is driven by a signal appropriate to excite a length-extensional acoustic mode of said piezoelectric element, wherein said piezoelectric element resonates at a piezoelectric element resonance frequency to radiate energy as an electric dipole.
Dependencies are inferred from the claim text.