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Origami Microwave Imaging Array: Metasurface Tiles on a Shape-Morphing Surface for Reconfigurable Computational
Suresh Venkatesh1, Daniel Sturm2, Xuyang Lu3
1Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC, 27606, USA.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|July 27, 2022
Summary
Researchers developed a shape-morphing microwave imaging array inspired by origami. This system offers reconfigurable field-of-view and scene-adaptive imaging for autonomous systems.
Area of Science:
- Electromagnetic imaging
- Metasurface technology
- Computational imaging
Background:
- Microwave/millimeter-wave array imaging is crucial for autonomous systems.
- Planar imaging systems have limitations in field-of-view and adaptive resolution.
- Complex scattering conditions challenge current imaging capabilities.
Purpose of the Study:
- To demonstrate a versatile shape-morphing microwave imaging array.
- To achieve reconfigurable field-of-view and scene-adaptive imaging.
- To overcome limitations of traditional planar imaging systems.
Main Methods:
- Utilized origami principles and computational imaging techniques.
- Developed a reconfigurable Waterbomb origami surface with 22 active metasurface panels.
- Operated across the 17-27 GHz frequency range.
Main Results:
- Demonstrated capability to image complex 3D objects with high detail.
- Minimized effects of specular reflections in diffraction-limited sparse imaging.
- Achieved scene adaptability, reconfigurable cross-range resolution, and field-of-view.
Conclusions:
- Electromagnetic origami surfaces offer new possibilities for intelligent sensing.
- Simultaneous shape-morphing and electromagnetic field programmability enhance imaging systems.
- This technology opens avenues for robust sensing and imaging applications.
