Wave Generation by a Finite Baffle Array in Application to Beam-Forming Analysis

• Autorzy: Tasinkevych Y.
• Języki publikacji: EN

Abstrakty

EN

Directional excitation of sound in an aperiodic finite baffle system is analyzed using a method developed earlier in electrostatics. The solution to the corresponding boundary value problem is obtained in the spatial-frequency domain. The acoustic pressure and normal particle velocity distribution in acoustic media can be easily computed by the inverse Fourier transform from their spatial spectra on the baffle plane. The presented method can be used for linear acoustic phased arrays modeling with finite element size and inter-element interactions taken into account. Some illustrative numerical examples presenting the far-field radiation pattern and wavebeam steering are given.

Słowa kluczowe

EN

phased array; beamforming; mixed boundary value problem; BIS expansion

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2010
• Tom: Vol. 35, No. 4
• Strony: 677--686
• Opis fizyczny: Bibliogr. 11 poz., wykr.

Twórcy

autor

Tasinkevych Y.

• Institute of Fundamental Technological Research Polish Academy of Sciences Pawinskiego 5B, 02-106 Warszawa, Poland,

Bibliografia

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• 2. Danicki E. (2006), Spectral theory of interdigital transducers of surface acoustic waves, http://www.ippt.gov.pl/edanicki/danickibook.pdf.
• 3. Danicki E., Langli B., Blotekja K. (1995), Spectral theory of EM wave scattering by periodic strips, IEEE Transactions on Antennas and Propagation, 43, 1, 97-104.
• 4. Danicki E.J. (2004), Electrostatics of interdigital transducers, IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, 51, 4, 444-452.
• 5. Danicki E.J., Tasinkevych Y. (2006), Nonstandard electrostatic problem for strips, Journal of Electrostatics, 64, 6, 386-391.
• 6. Kuhnicke E. (2007), Plane arrays - Fundamental investigations for correct steering by means of sound field calculations, Wave Motion, 44, 4, 248-261.
• 7. Press W.H., Teukolsky S.A., Vetterling W.T., Flannery B.P. (1992), Numerical recipes in C. The art of scientific computing, 2nd ed., Cambridge University Press.
• 8. Selfridge A.R., Kino G.S., Khuriyakub B.T. (1980), A theory for the radiation pattern of a narrow-strip acoustic transducer, Applied Physics Letters, 37, 1, 35-36.
• 9. Tasinkevych Y., Danicki E. (2005a), Nonstandard electrostatic problem for SAW interdigital transducer in external electric field, 2005 IEEE Ultrasonics Symposium, Proceedings, 1610-1613.
• 10. Tasinkevych Y., Danicki E. (2010), Full-wave analysis of periodic baffle system in beamforming applications, Archives of Acoustics, 35, 4.
• 11. Tasinkevych Y., Danicki E.J. (2005b), On electrostatics of finite planar system of strips applied in surface acoustic wave interdigital transducers, Journal of Technical Physics, 46, 175-193.