Radio Wave Reradiation/Reflection TRIZ Cases

Separating the radar electronics from the antenna with waveguides and a metasurface improves resolution, lowers energy use, and protects impact-prone parts.

Time-varying resonators create phase shifts that cancel Doppler signatures, helping moving targets appear stationary across radar bands.

Separating direct and reflected 4D radar returns helps estimate road plane, incline, and surface conditions for safer vehicle control.

A pivotable side sensor tracks trailer articulation to maintain lateral coverage and avoid blind spots and ghost detections during turns.

Aggregated radar measurements are compared with existing map data to correct errors, keep maps current, and improve vehicle localization.

A spaced reflector redirects radar beams and returns to cover regions beyond 120° while excluding unwanted detection zones.

Uses a vehicle-side attachment element as a built-in calibration reference to restore surroundings sensor position accuracy without external targets.

Adjustable phase shifters and combiners let one radar transceiver support more MIMO antennas without the cost of adding full receive and transmit channels.

Radar-based ground speed sensing helps heavy-duty vehicles stay controllable when GPS is unreliable by lowering wheel slip set-points when radar accuracy drops.

Motion sensors and transformation matrices correct antenna position shifts in real time, preserving phased array signal accuracy under shock, vibration, and heat.

Radar signal filtering and beamformed distance-angle heatmaps improve in-vehicle human detection speed and accuracy with lower computation.

A software-defined beam control scheme lets one vehicle radar adapt to front, corner, or side mounting without hardware changes.

UWB, IMU, and camera sensing improve trailer localization and path prediction while simplifying calibration and surround view stitching.