Patents by Inventor Steven Castillo

Steven Castillo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12436251
    Abstract: Various technologies pertaining to forming a very high instantaneous bandwidth (IBW) radar signal based upon several radio frequency (RF) signals that have sub-bands of the frequency band of the radar signal are described herein. A radar system is configured to address local oscillator leakage across multiple transmit channels of the radar system, such that the radar signal has a relatively constant or other desired amplitude and phase across frequencies of the radar signal. In addition, the radar system is configured to compute a correction signal that pre-distorts each of the sub-frequency channels such that upon combining enables the generation of desired amplitude and phase response across a transmitted pulse.
    Type: Grant
    Filed: July 1, 2024
    Date of Patent: October 7, 2025
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Hung Loui, Brianna N. Maio, Steven Castillo, Emmett J. Gurule
  • Patent number: 12436252
    Abstract: Various technologies pertaining to forming a very high instantaneous bandwidth (IBW) radar signal based upon several radio frequency (RF) signals that have sub-bands of the frequency band of the radar signal are described herein. A radar system is configured to address local oscillator leakage across multiple transmit channels of the radar system, such that the radar signal has a relatively constant or other desired amplitude and phase across frequencies of the radar signal. In addition, the radar system is configured to compute a correction signal that pre-distorts each of the sub-frequency channels such that upon combining enables the generation of desired amplitude and phase response across a transmitted pulse.
    Type: Grant
    Filed: July 2, 2024
    Date of Patent: October 7, 2025
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Hung Loui, Brianna N. Maio, Steven Castillo, Emmett J. Gurule
  • Publication number: 20240353550
    Abstract: Various technologies pertaining to forming a very high instantaneous bandwidth (IBW) radar signal based upon several radio frequency (RF) signals that have sub-bands of the frequency band of the radar signal are described herein. A radar system is configured to address local oscillator leakage across multiple transmit channels of the radar system, such that the radar signal has a relatively constant or other desired amplitude and phase across frequencies of the radar signal. In addition, the radar system is configured to compute a correction signal that pre-distorts each of the sub-frequency channels such that upon combining enables the generation of desired amplitude and phase response across a transmitted pulse.
    Type: Application
    Filed: July 2, 2024
    Publication date: October 24, 2024
    Inventors: Hung Loui, Brianna N. Maio, Steven Castillo, Emmett J. Gurule
  • Patent number: 12061249
    Abstract: Various technologies pertaining to forming a very high instantaneous bandwidth (IBW) radar signal based upon several radio frequency (RF) signals that have sub-bands of the frequency band of the radar signal are described herein. A radar system is configured to address local oscillator leakage across multiple transmit channels of the radar system, such that the radar signal has a relatively constant or other desired amplitude and phase across frequencies of the radar signal. In addition, the radar system is configured to compute a correction signal that pre-distorts each of the sub-frequency channels such that upon combining enables the generation of desired amplitude and phase response across a transmitted pulse.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: August 13, 2024
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Hung Loui, Brianna N. Maio, Steven Castillo, Emmett J. Gurule