SURFACE-ACOUSTIC-WAVE BAND FILTER Russian patent published in 1998 - IPC

FIELD: radio electronics; frequency and time processing of signals. SUBSTANCE: filter has piezoelectric substrate mounting input interdigital apodized transducer and output unapodized one with screen and triangular phase compensator in- between made in the form of metal films; adding buses of input transducer are V-shaped; relations between base dimensions and phase compensator height with angle of inclination of part of input transducer adding bus to direction of wave propagation are given in description of invention. EFFECT: provision for suppressing signal in rejection band within frequency range and for forward and reverse connection of apodized transducer at equal level of forward going signal. 2 dwg