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Titolo:
DERIVATION OF COM EQUATIONS USING THE SURFACE IMPEDANCE METHOD
Autore:
BIRYUKOV SV; MARTIN G; POLEVOI G; WEIHNACHT M;
Indirizzi:
MINTS RADIOTECH INST MOSCOW 125083 RUSSIA INST FESTKORPER & WERKSTOFFORSCH D-01171 DRESDEN GERMANY
Titolo Testata:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control
fascicolo: 4, volume: 42, anno: 1995,
pagine: 602 - 611
SICI:
0885-3010(1995)42:4<602:DOCEUT>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
ACOUSTIC-WAVES; SAW GRATINGS; TRANSDUCERS; PHASE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
35
Recensione:
Indirizzi per estratti:
Citazione:
S.V. Biryukov et al., "DERIVATION OF COM EQUATIONS USING THE SURFACE IMPEDANCE METHOD", IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 42(4), 1995, pp. 602-611

Abstract

The surface impedance method is used for the consistent derivation ofcoupling of modes equations which describe the interaction of SAW with a periodical system of electrodes of finite thickness, The exact analytic solution of the electrostatic problem in the presence of an arbitrary external electric field for a plane system of electrodes is applied to the calculation of the charge and electric field distributions,Mechanical perturbations are taken into account to first order of thethickness of the electrodes, As a result the scalar self-consistent equation for the electric potential of acoustic waves in the gratings is obtained, For the periodic structure this equation is reduced to theform of COM equations for slowly varying amplitudes, Analytical expressions for all coefficients of the COM equations connecting them with geometrical and material parameters are found. The NSPUDT effect can be considered, Dissipation and energy storage terms can be introduced empirically, The solution of the COM equations is represented in the form of a P matrix with elements written in a convenient form, A simple formula for calculating the location of maximum transducer frequency response is proposed, The balance of energy is considered, Some new relations among the elements of P matrix are found.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 09:25:34