Patent · US Active

Filter device comprising two connected filter circuits

US12237825B2 · kind B2 · utility

0Cited by

2References

10Claims

0Family size

Assignee

RF360 Singapore Pte. Ltd. · SG

Inventors

Georgiy Sevskiy · Munich, DE
Stefan Freisleben · Neubiberg, DE
Patric Heide · Vaterstetten, DE
Oleksandr Ruban · Munich, DE
Igor Ielegechev · Munich, DE

Key dates

Filing date	Jul 9, 2020
Grant date	Feb 25, 2025
Priority date	—
Expiry date	Apr 22, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH03H2001/0085
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A filter device having a reduced sensitivity to production tolerances comprises a multilayer panel with integrated wiring, a piezoelectric substrate mounted to the panel. A first filter circuit (FC1) and a signal path (SP) comprising a second filter circuit are realized on the substrate and connected to a common antenna terminal (AT) as well as to a common node (CN) located on top of the piezoelectric substrate. A first matching circuit (MC1) and further matching circuits (MC2) are realized by the wiring in the multilayer panel.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.