Patent · US Active

Antenna matching circuit

US9214920B2 · kind B2 · utility

8Cited by

24References

21Claims

0Family size

Assignee

EPCOS AG · DE

Inventors

Andreas Link · Munich, DE
Stephan Marksteiner · Putzbrunn, DE

Key dates

Filing date	Feb 10, 2011
Grant date	Dec 15, 2015
Priority date	—
Expiry date	Feb 10, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH03H9/725
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

An antenna matching circuit includes at least two signal paths are connected to one antenna connection. The signal paths are designed to transmit and/or receive RF signals. A matching circuit includes a discrete line for phase shifting integrated at the antenna end in at least one of the signal paths. In this case, at least one of the capacitances contained in the discrete line is in the form of a micro-acoustic resonator, whose resonance is shifted sufficiently far that it is outside the pass band of the respective signal paths.

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