Analysis Of Ultra-Thin Fss Based Planar Metamaterial Absorber For Wideband Applications

Authors

  • Preeti Singh , Sachin Kalraiya

Abstract

In this paper, a single layer metamaterial absorber is proposed for wideband
absorption. Superior to this a less thickness dielectric substrate is considered to design
wideband absorber to confirm ultra-thin design technique. In the beginning, a microstrip
polygon shape structure is considered with different combination. In which, the
absorption response is observed with the introduction of sequentially slots at different
sections. Conceptually in this paper, a resistive FSS is realized with capacitive circuit
type absorber techniques. This research work utilizes an advanced resistive FSS
structure to realize a superior wideband absorption which will suite to many of the
applications which uses X-Band. Further the wideband absorption is improved with
lumped element typically chip resistor is incorporated in the existing planar MTM
absorber. In next stage, the research investigates the wideband performance with
minimum number of lumped resistors to avoid the fabrication complexity and easy of
realization. Here, a crossed dipole concept is considered with integrated lumped
resistors. The designed structure is optimized to realize wideband absorption. The final
configuration is loaded with angular arc which realizes superior wideband response with
minimum possible lumped resistor. The proposed work gives a wideband response
throughout the C-Band, X-Band and Ku- Band. Typically, this work demonstrates a
single layer FSS based planar metamaterial configuration.

Published

2020-12-01

Issue

Section

Articles