Low-loss surface acoustic wave filter

摘要

Low loss ultra high frequency filter of the surface acoustic wave type including input (2, 3) and output (4, 5) transducers acoustically connected to coupling transducers (6, 7). The relative positions of the transducers (2 to 7) and of their reflectors arranged in an O shape are chosen on the basis of the balancing of the coupling transducers (6, 7) in order to obtain, for this filter, the desired transfer function.