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Author(s):
Müller, Günter; Herzinger, S.; Weigel, Robert; Russer, Peter 
Title:
Extended Phased Array Model for the Calculation of Mechanical Bulk Wave Excitation in SAW Reflectors 
Abstract:
A new model for mechanical conversion of surface acoustic waves (SAWs) into bulk acoustic waves (BAWs) in SAW reflectors is presented. It is based on the far field computation of a bulk wave source distribution. These sources are derived from a one-dimensional P-Matrix formalism, which is known to be an accurate description of SAW propagation under metallic gratings. The model takes into account the anisotropy of the piezoelectric substrate and is not restricted to a specific acoustic wave type....    »
 
Keywords:
band-stop filters, bulk wave source distribution, chirped reflectors, extended phased array model, far field computation, finger width-weighted reflectors, harmonic stop band frequencies, low loss SAW filters, mechanical bulk wave excitation, metallic gratings, one-dimensional P-Matrix formalism, piezoelectric substrate, position-weighted reflectors, radiofrequency filters, SAW reflectors, surface acoustic wave filters 
Book / Congress title:
IEEE MTT-S International Microwave Symposium 
Volume:
Publisher address:
San Diego, CA, USA 
Year:
1994 
Month:
may 
Pages:
933--936