BAND SECTIONALIZED MONOLITHIC QUARTZ FILTER Russian patent published in 2020 - IPC H03H9/56 

FIELD: electronic equipment.

SUBSTANCE: invention relates to the field of electronic equipment, in particular, to strip-sectionalized monolithic piezoelectric filters (MQF). Band-sectionalized monolithic quartz filter includes acoustically connected separate resonators, forming links of band-pass filter, each of which is formed by two oppositely located on opposite sides of quartz plate metal electrodes, with formation between electrodes pairs of individual resonators interelectrode space, made with provision of acoustic connection between private resonators, wherein filter includes more than three links of second order, wherein interelectrode distance between partial resonators of extreme links is increased, and area of electrodes of extreme links is reduced compared to area of electrodes of intermediate links equipped with electrodes equal in area.

EFFECT: technical result consists in increasing bandwidth of a band-pass channelized MQF, without reducing distance between electrodes of partial resonators of extreme links.

5 cl, 2 dwg