Patent · US Active

Multiplexer device with hybrid LC/acoustic filter

US9742451B2 · kind B2 · utility

10Cited by

1References

20Claims

0Family size

Assignee

Avago Technologies General IP (Singapore) Pte. Ltd. · SG

Inventors

Andriy Yatsenko · Munich, DE
Hongya Xu · Taufkirchen, DE
Lueder Elbrecht · Munich, DE
Martin Handtmann · Riemerling, DE

Key dates

Filing date	Mar 30, 2015
Grant date	Aug 22, 2017
Priority date	—
Expiry date	Mar 30, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH03H9/0004
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A multiplexer device includes at least one acoustic band pass filter connected to a common port, and a hybrid LC/acoustic filter connected to the common port in parallel with the at least one acoustic band pass filter. Each acoustic band pass filter has a corresponding passband and includes multiple acoustic resonators. The hybrid LC/acoustic filter includes at least one acoustic resonator, and has at least one capacitor replaced by a corresponding at least one acoustic resonator, respectively. Each of the at least one acoustic resonator included in the hybrid LC/acoustic filter provides a stopband response when operating in a corresponding acoustic frequency range, and acts as a capacitor when operating in a corresponding non-acoustic frequency range.

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