Search Results - "Calabrese, Caleb"

Spurious Beam Suppression in Dual-Beam Phased Array Transmission by Impedance Tuning by Rodriguez-Garcia, Pedro, Sifri, Jack, Calabrese, Caleb, Goad, Adam, Baylis, Charles, Marks, Robert J.

“…A significant challenge for dual-beam, codesigned systems, such as for simultaneous radar and communications transmission, has been identified as the spurious…”
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Fast Optimization Algorithm for Evanescent-Mode Cavity Tuner Optimization and Timing Reduction in Software-Defined Radar Implementation by Dockendorf, Angelique, Egbert, Austin, Langley, Ellie, Calabrese, Caleb, Alcala-Medel, Jose, Rezayat, Sarvin, Hays, Zach, Baylis, Charles, Martone, Anthony, Viveiros, Ed, Gallagher, Kyle, Semnani, Abbas, Peroulis, Dimitrios

“…Dynamic spectrum allocation will require cognitive radar transmitters to change operating frequency and bandwidth in real time. This will require high-power…”
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Fast Switched-Stub Impedance Tuner Reconfiguration for Frequency and Beam Agile Radar and Electronic Warfare Applications by Calabrese, Caleb, Dockendorf, Angelique, Egbert, Austin, Herrera, Brandon, Baylis, Charles, Marks, Robert J.

“…Tunable matching networks using switched stubs show promise for real-time impedance matching in high-power radar and jamming applications based on the emerging…”
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A Plasma-Switch Impedance Tuner for Real-Time, Frequency-Agile, High-Power Radar Transmitter Reconfiguration by Calabrese, Caleb, Roessler, Justin, Egbert, Austin, Fisher, Alden, Baylis, Charles, Missen, Zach Vander, Khater, Mohammad Abu, Peroulis, Dimitrios, Marks, Robert J.

“…Recent policy changes to the United States radar S-band allocation requires that radar transmitters share the 3.45 to 3.7 GHz range with fifth-generation (5G)…”
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Fast Frequency-Agile Real-Time Optimization of High-Power Tuning Network for Cognitive Radar Applications by Alcala-Medel, Jose, Egbert, Austin, Calabrese, Caleb, Dockendorf, Angelique, Baylis, Charles, Shaffer, Garrett, Semnani, Abbas, Peroulis, Dimitrios, Viveiros, Ed, Gallagher, Kyle, Martone, Anthony

“…This paper describes the fast real-time frequency agility and reconfiguration of a 90 W high-power evanescent-mode resonant cavity tuner using an advanced…”
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Impedance Tuning with Notched Waveforms for Spectrum Sharing in Cognitive Radar by Dockendorf, Angelique, Egbert, Austin, Goad, Adam, Calabrese, Caleb, Adkins, Benjamin, Ravenscroft, Brandon, Owen, Jonathan, Baylis, Charles, Blunt, Shannon, Martone, Anthony, Gallagher, Kyle, Marks, Robert J.

“…In a congested radio spectrum, radar systems must be capable of sharing spectrum in real time. Two possible radar transmission approaches involve either…”
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Reconfigurable and Adaptive Radar Amplifiers for Spectrum Sharing in Cognitive Radar by Baylis, Charles, Egbert, Austin, Alcala-Medel, Jose, Dockendorf, Angelique, Calabrese, Caleb, Langley, Ellie, Martone, Anthony, Gallagher, Kyle, Viveiros, Ed, Peroulis, Dimitrios, Semnani, Abbas, Marks, Robert J.

“…The increased use of the wireless spectrum for broadband applications has necessitated a new approach to radar transmission. Future radar systems will be…”
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Range Improvement in Single-Beam Phased Array Radars by Amplifier Impedance Tuning by Rodriguez-Garcia, Pedro, Sifri, Jack, Calabrese, Caleb, Baylis, Charles, Marks, Robert J.

“…Significant radar range degradation can be incurred due to variations in antenna impedance from changing array scan angle. Element-wise reconfigurable…”
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Dynamic Online Learning Applied to Fast Switched-Stub Impedance Tuner for Frequency and Load Impedance Agility in Radar Applications by Calabrese, Caleb, Egbert, Austin, Dockendorf, Angelique, Baylis, Charles, Marks, Robert J.

“…Switched-stub tuner topologies show promise for use in real-time tuning of high-power amplifiers in radar transmitter arrays. High-power switches can be used…”
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Range Improvement in Single-Beam Phased Array Radars by Amplifier Impedance Tuning by Rodriguez-Garcia, Pedro, Sifri, Jack, Calabrese, Caleb, Baylis, Charles, MarksII, Robert J

“…Significant radar range degradation can be incurred due to variations in antenna impedance from changing array scan angle. Element-wise reconfigurable…”
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The Impact of Nonlinear Power Amplifier Load Impedance on Notched Waveforms for Cognitive Radar Spectrum Sharing by Dockendorf, Angelique, Goad, Adam, Calabrese, Caleb, Adkins, Benjamin, Egbert, Austin, Owen, Jonathan, Ravenscroft, Brandon, Baylis, Charles, Marks, Robert J., Blunt, Shannon, Martone, Anthony, Sherbondy, Kelly, Viveiros, Ed

“…High-bandwidth waveforms are required to obtain good range resolution in radar applications, yet contiguous bandwidth is often not readily available. To that…”
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