Tunable RF anti-jamming system (TRAJS)
US9711833B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2014 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Aug 5, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/36
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods are provided for tunable band pass filtering for Tunable RF Anti-Jamming Systems. A tunable notch filter includes a transmission line coupled to an antenna, a splitter, a band-stop filter, a polarity inverter, and a combiner. In operation, the band-stop filter suppresses predetermined frequency bands of a received signal creating a filtered signal, the polarity inverter creates an inverted signal, and the combiner combines the filtered and inverted signals to create a pass band including the predetermined frequency bands and suppressing frequency bands adjacent the predetermined frequency bands. Alternatively, a tunable multiband bandpass filter includes first and second bandpass filters and a plurality of tunable passive components adapted to tune the first and second bandpass filters to first and second frequency bands, thereby creating a multiband pass band signal including the first and second frequency bands and attenuating frequency bands adjacent to the first and second frequency bands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.