Spectral theory of unidirectional transducers

• Autorzy: Danicki E.
• Języki publikacji: EN

Abstrakty

EN

A spectral theory of single-phase unidirectional transducers of the surface acoustic waves is presented. It helps to evaluate the stop-band width where the directionality takes place, and allows one to optimize the transducer structure in order to obtain its symmetric frequency response, with maximum directionality at the stop-band center.

Słowa kluczowe

EN

surface acoustic waves; interdigital transducers

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2005
• Tom: Vol. 30, No. 4
• Strony: 515--519
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Danicki E.

• Institute of Fundamental Technological Research, Polish Academy of Sciences, Świętokrzyska 21, 00-049 Warszawa, Poland,

Bibliografia

• [1] D. P. MORGAN, Quasi-static analysis of floating-electrode unidirectional SAW transducers (FEUDT’s), 1999 IEEE Ultras. Symp. Proc., pp. 107–111 (1999).
• [2] E. DANICKI, Spatial spectrum of electric charge on planar array of metal strips, Electr. Lett., 31, 2220–2221 (1995).
• [3] E. DANICKI, Electrostatic scattering by strips, Arch. Acoust., 27, 31–40 (2002).
• [4] M. TAKEUCHI, H. OGADAWA, M. TANAKA, Y. YAMANOUCHI, SAW transducer configurations for reversing the directionality of NSPUDT substrates, 1995 IEEE Ultras. Symp. Proc., 17–22 (1995).
• [5] S. JEN, C. S. HARTMANN, Synthesis and performance of medium bandwidths, low time-spurious, high out-of-band rejection SPUDT filter, 1993 IEEE Ultras. Symp. Proc., 9–13 (1993).
• [6] E. DANICKI, Spectral theory of NSPUDT – Rayleigh wave case, 1991 IEEE Int. Ultras. Symp. Proc., 145–148 (1991).
• [7] E. J. DANICKI, An approximation to the planar harmonic Green’s function at branch points in wavenumber domain, J. Acoust. Soc. Am., 104, 651–663 (1998).
• [8] http://www.ippt.gov.pl/~edanicki/free.htm