Electronically variable delay line for a long-range phased array radar
Defense
Project details
Design of an electronically variable delay line for a long-range, high-power phased array RADAR system.

Engineering Electronics
L Stuart, Inc. provides electronics engineering specializing in RF, microwave, and wireless communication systems. It delivers design, modeling, simulation, and sustainment for microwave components, integrated multi-function assemblies, and satellite communications equipment, alongside technical training and intellectual property support for aerospace and defense applications.
Requirements analysis, system engineering, detailed modeling, simulation, testing, verification, and lifecycle support for RF and microwave components and assemblies.
Requirements analysis and initial design of microwave components and multi-function assemblies.
System-level analysis and engineering recommendations for integrated systems.
Detailed modeling and simulation of individual component performance and signal chains.
Concept definition, development, testing, validation, deployment, modernization, and sustainment.
Expert design reviews, critiques, and support for customer design reviews.
Preparation of detailed parts lists, schematic and assembly drawings, test plans, and procedures.
Technical risk analysis, system impact analysis, and technical quality assurance.
Reliability, MTBF, and space-radiation analysis for electronics components and integrated signal chains.
MTBF predictions using MIL-HDBK-217 standards with design-specific modifications for modern elements.
Space radiation susceptibility analysis of electronic and microwave components.
Engineering support for signal-control devices, wideband converter systems, and modernization of obsolete microwave assemblies.
Design of PIN diode based high-power switches, high dynamic range attenuators, phase shifters, and integrated assemblies operating from 5 MHz to 40 GHz.
Engineering of 0.5 to 40 GHz wideband downconverters, low noise amplifiers, and power amplifiers with fiber optic connectivity.
Analysis, evaluation, updating of specifications, and synthesis of replacement designs utilizing modern techniques and materials.
Technical courses and seminars covering microwave component design, communication system design, satellite communication systems, and electronic fundamentals.
Training on transmission lines, scattering parameters, microwave structures, filters, control devices, amplifiers, and phase-locked loop fundamentals.
Seminars covering orbits, link design, link budget, noise effects, space link propagation, and earth station design.
Courses in network analysis, equivalent circuits, Maxwell's equations, and Smith Chart circuit analysis.
Technical intellectual property strategy, patent application preparation, and prosecution support for engineering and technology matters.
Assisting with strategic planning, development, and prosecution of IP portfolios, identifying potential IP, and refining internal controls.
Converting written invention disclosures into U.S. non-provisional, provisional, and international PCT patent applications.
Analyzing prior art, preparing written responses to the USPTO, and conducting examiner and inventor interviews.
Expert witness support in engineering technology areas and the patent process.
Defense · Aerospace · Telecommunications · Electronics · Space · Intelligence & National Security · Aviation · Legal
Defense
Design of an electronically variable delay line for a long-range, high-power phased array RADAR system.
Telecommunications
Low phase noise, precision Ku-band up, down, and integrated loop-back test converters for a satellite earth station.
Space
Development of an RF signal power divider for an extraterrestrial spacecraft landing system.
Defense
Design of a switched tri-channel downconverter pre-amplifier multi-function assembly for a naval landing system.