This research aims to develop a honeycomb metamaterial that efficiently absorbs a wide range of frequencies.
Designed a gradient-coated honeycomb structure.
Fabricated a honeycomb with a thickness of 30 mm.
Tested absorption capabilities across a frequency range of 2.2–18 GHz.
Achieved a wide absorption bandwidth of 2.2–18 GHz.
Demonstrated effective impedance matching through gradient coating.
Abstract
Inspired by multi-scale impedance matching, this study presents a gradient-coated honeycomb metamaterial. With a honeycomb thickness of only 30 mm, it achieves a absorption bandwidth of 2.2–18 GHz.