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Autor(en):
Fischerauer, Gerhard; Gogl, D.; Weigel, Robert; Russer, Peter 
Titel:
Investigation of Parasitic Effects in Multi-Transducer SAW RF Filters 
Abstract:
This paper discusses the relative importance of the different parasitic effects in multi-transducer SAW filters at UHF frequencies. This is accomplished by using a lumped-element circuit model which links the circuit elements directly to the filter-geometry and enables one to identify the sources of unwanted features in the filter frequency characteristics. Further, the model complexity may be reduced by retaining only those circuit elements that lead to the most severe effects. It is shown how...    »
 
Stichworte:
1 GHz, band-pass filters, coupling capacitances, filter frequency characteristics, image-impedance connected twin-track filters, inductive coupling effects, inductive effects, interdigital transducers, interdigitated IDT filter, lumped-element circuit model, model complexity, multi-transducer devices, multi-transducer SAW RF filters, Ohmic losses, parasitic effects, passband distortions, stopband characteristics, stray capacitances, surface acoustic wave filters, surface acoustic wave transducer...    »
 
Kongress- / Buchtitel:
IEEE Ultrasonics Symposium 
Band / Teilband / Volume:
Verlagsort:
Cannes, France 
Jahr:
1994 
Monat:
oct 
Seiten:
241--244