Patent · US Active

Electroacoustic filter with modified phase characteristics

US11824522B2 · kind B2 · utility

0Cited by

1References

27Claims

0Family size

Assignee

RF360 Singapore Pte. Ltd. · SG

Inventors

Volker Schulz · Heppenheim, DE
Gerhard Kloska · Rosenheim, DE
Ibrahim Mehinovic · Munich, DE
Philipp Schwegler · Peising, DE

Key dates

Filing date	Nov 11, 2020
Grant date	Nov 21, 2023
Priority date	—
Expiry date	Aug 10, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH03H7/465
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Aspects of the disclosure relate to wireless communication, and high-frequency filters with resonators configured to systematically modify phase characteristics of an antenna reflection coefficient. One example is a wireless communication apparatus for a multi-band system comprising a frequency band filter circuit having a filter passband that includes a first band of the multi-band system. The frequency band filter circuit comprises a plurality of resonators coupled between an antenna port and a signal port and a resonant structure electrically coupled to the plurality of resonators. The resonant structure has a resonance outside of the first band and a second band of the multi-band system, the resonance being closer to the second band than to the first band.

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