Piezoceramic actuated aperture antennas

Hwan-Sik Yoon; Gregory N. Washington

doi:10.1117/12.320165

20 July 1998 Piezoceramic actuated aperture antennas

Proceedings Volume 3328, Smart Structures and Materials 1998: Smart Electronics and MEMS; (1998) https://doi.org/10.1117/12.320165
Event: 5th Annual International Symposium on Smart Structures and Materials, 1998, San Diego, CA, United States

Abstract

Recently, it has been demonstrated that aperture antennas can have their performance improved by utilizing PVDF as a shape controlling actuator. Since PVDF is a polymer with limited control authority, these antennas can only be employed in space based applications. This study examines more robust antenna structures devised of a thick metalized substrate with surface bonded piezoceramic (PZT) actuators. In this work, PZT-actuated adaptive antennas of cylindrical- cut shape are studied. First, the PZT-actuated antenna surface is modeled based on the classical curved beam theory and Newton's method. Second the Voltage vs. Deflection relationship is experimentally verified. Third, the resulting far field radiation pattern is simulated on computer.

Citation Download Citation

Hwan-Sik Yoon and Gregory N. Washington "Piezoceramic actuated aperture antennas", Proc. SPIE 3328, Smart Structures and Materials 1998: Smart Electronics and MEMS, (20 July 1998); https://doi.org/10.1117/12.320165

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