US 12,119,854 B2
Systems and methods for wideband RF interference detection and suppression
Mohammad Abu Khater, West Lafayette, IN (US); and Dimitrios Peroulis, West Lafayette, IN (US)
Assigned to Purdue Research Foundation, West Lafayette, IN (US)
Filed by Purdue Research Foundation, West Lafayette, IN (US)
Filed on Feb. 22, 2023, as Appl. No. 18/112,604.
Claims priority of provisional application 63/312,545, filed on Feb. 22, 2022.
Prior Publication US 2023/0268945 A1, Aug. 24, 2023
Int. Cl. H04B 1/10 (2006.01); G01R 19/04 (2006.01)
CPC H04B 1/1027 (2013.01) [G01R 19/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
(a) an open-circuit stub configured to receive an input signal, wherein the open-circuit stub defines an open end;
(b) a first voltage peak detector coupled at the open end of the open-circuit stub, wherein the first voltage peak detector is configured to output a first voltage signal based on a portion of the input signal;
(c) a second voltage peak detector coupled a distance away from the open end of the open-circuit stub, wherein the second voltage peak detector is configured to output a second voltage signal based on the portion of the input signal, wherein the first voltage signal and the second voltage signal collectively quantify a standing wave pattern representative of the portion of the input signal;
(d) an analog-to-digital converter (ADC) communicatively coupled with the first voltage peak detector and second voltage peak detector, wherein the ADC is configured to convert the first voltage signal to a first digital voltage signal and the second voltage signal to a second digital voltage signal; and
(e) a controller communicatively coupled with the ADC and configured to receive the first digital voltage signal and the second digital voltage signal from the ADC, wherein the controller is configured generate an output control signal operable to adjust a signal filter based on the first digital voltage signal and the second digital voltage signal to suppress the portion of the input signal.