Patent · US Active

Self-tuning N-path filter

US11139847B2 · kind B2 · utility

1Cited by

2References

20Claims

0Family size

Assignee

BAE Systems Information and Electronic Systems Integration Inc. · US

Inventors

Mark E. Stuenkel · Goffstown, US
Mark D. Hickle · Merrimack, US

Key dates

Filing date	Jan 9, 2020
Grant date	Oct 5, 2021
Priority date	—
Expiry date	Jan 9, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04B2001/1063
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A radio frequency (RF) filter includes a signal conditioning circuit and a bandstop filter. The signal conditioning circuit receives a broadband RF signal that includes both a jamming signal at a jamming frequency and a signal of interest and generates a plurality of clock signals. Each of the plurality of clock signals has a substantially same frequency as the jamming frequency, but a different phase shift. The bandstop filter receives the RF signal and the plurality of clock signals. The bandstop filter attenuates signals within a bandstop centered at the frequency of the plurality of clock signals. A self-tuning N-path filter is provided.

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