Abstract
The achievement of wide absorption bandwidth for a single-layer metamaterial absorber remains a challenge. In this letter, a frequency-selective surface (FSS), single-substrate layer, broadband metamaterial absorber is investigated theoretically, experimentally, and by simulation in the frequency range of 2–18 GHz. Simulations of the reflection coefficient of the absorber with different substrate dielectric thicknesses, FSS thicknesses, and FSS dimensions indicate that there exist optimal values for the absorber design. The measured results from a fabricated prototype are in close agreement with the simulations, suggesting the effectiveness of the structure for actual electromagnetic applications. The fabricated absorber with thickness 2.0 mm has a minimum reflection coefficient of −29.0 dB at 12.2 GHz. The −10 dB absorption bandwidth is 7.5 GHz in the range of 8.5–16 GHz. Effective complex electromagnetic parameters are extracted to quantitatively understand the absorption. A miniaturized structure, single-substrate layer, simple geometry, and wide bandwidth are some of the key features of the proposed metamaterial absorber.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
