Synergizing meander line and heterogeneous composite for miniaturized hybrid microwave absorber

Abstract

This study presents a significant stride in microwave absorption technology through the integration of a meander line (MDL) pattern with a heterogeneous composite (HC) fused perforated microwave absorber (PFMA). Through a comprehensive analysis, it is demonstrated that the integration of these approaches leads to improved performance compared to traditional absorber configurations. The conversion of the micron-sized titanium dioxide (TiO2) and nano-sized multiwalled carbon nanotubes (MWCNT) based HC into a PFMA is achieved using a drilling machine. Following this, an MDL pattern is deposited to impart the desired characteristics, ultimately resulting in the development of a final absorber structure. Notably, the absorber achieves a wide absorption bandwidth while maintaining an ultra-thin structure of only 1.8 mm. Its lightweight, miniaturized design, good angular stability, and polarization insensitivity enhance its practical utility for diverse applications. Beyond theoretical contributions, this research demonstrates the practical feasibility of fabricating and measuring the proposed absorber. © 2024 Wiley Periodicals LLC.