David R. Sar

Waveguide-to-waveguide power combiner/divider

Coaxial-to-waveguide power combiner/divider comprising two fins disposed in a plane of the waveguide and connected to plural coaxial inputs/outputs

TRAVELING WAVE TUBE

Aerodynamic solid nose cone formed with an afocal axicon lens and method of imaging

Non-lethal naval vessel interdiction weapon

Non-lethal naval vessel interdiction weapon

Directed energy delivery systems capable of disrupting air-based predatory threats

Dielectric-encapsulated wideband metal radome

Monolithic wideband millimeter-wave radome

Methods and apparatus for underwater electrical near-field signal system

METHODS AND APPARATUS FOR WIDE AREA SYNTHETIC APERTURE RADAR DETECTION

FOAM MATERIAL WITH ORDERED VOIDS

Interceptor vehicle with extendible arms

Damped split beam structural member with segmented beam parts

Structural member with clamping pressure mechanism

Shape-changing structure member with embedded spring

Infrared concealed object detection enhanced with closed-loop control of illumination by.mmw energy

Multi-layer metal/shape memory polymer roll-up wing structures for fitment-constrained air vehicles

Collapsible wing beams and method

Shape-changing structure with superelastic foam material

Structure with reconfigurable polymer material

Shape-changing structure member with embedded spring

System and Apparatus for Preventing Freezing of Crops

Sensor suite and communication system for cargo monitoring and identification

Vacuum-insulating system and method for generating a high-level vacuum