Patent · US Active

Reconfigurable bandpass filter based on a planar combline filter comprising varactor diodes

US9160045B2 · kind B2 · utility

1Cited by

7References

3Claims

0Family size

Assignee

iAd Gesellschaft für Informatik, Automatisierung und Datenverarbeitung mbH · DE

Inventors

Hermann Hampel · Großhabersdorf, DE
Ulrich Berold · Nuremberg, DE
Christoph Reck · Erlangen, DE
Lorenz-Peter Schmidt · Prüm, DE
Ralph Trommer · Großhabersdorf, DE

Key dates

Filing date	Mar 13, 2012
Grant date	Oct 13, 2015
Priority date	—
Expiry date	Nov 28, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH01P7/082
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A reconfigurable bandpass filter including at least a tunable planar combline filter including varactor diodes arranged on a carrier board. For automatic calibration of adjustment of blocking voltage during operation, the reconfigurable bandpass filter includes a filter control offering an external abstracted interface. A memory is connected with the filter control. The memory stores calibration data. For approximating of the best possible filter characteristic, the filter control determines, based on memorized data, the best configuration of tuning voltages.The reconfigurable bandpass filter can be used in the field of secondary radar systems.

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