Patent · US Active

Hybrid filter

US11431321B2 · kind B2 · utility

1Cited by

0References

20Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Maximilian SCHIEK · Puchheim, DE
Roland ROSEZIN · Bernau, DE

Key dates

Filing date	Dec 19, 2018
Grant date	Aug 30, 2022
Priority date	—
Expiry date	Jan 16, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH03H9/0523
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

The invention combines two filter technologies on a single device using the same substrate there for. On this substrate a filter circuit is arranged that has a ladder-type or a lattice arrangement of series and parallel impedance elements to provide a hybrid filter having for example a band pass function. The impedance elements are chosen from BAW resonators and LC elements.

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