Title :
A Broadband Absorber With a Resistive Pattern Made of Ink With Graphene Nano-Platelets
Author :
Olszewska-Placha, Marzena ; Salski, Bartlomiej ; Janczak, Daniel ; Bajurko, Pawel R. ; Gwarek, Wojciech ; Jakubowska, Malgorzata
Author_Institution :
Inst. of Radioelectron., Warsaw Univ. of Technol., Warsaw, Poland
Abstract :
A novel type of a broadband flexible electromagnetic absorbing panel made of a resistive pattern printed on a dielectric spacer backed by a conducting surface is investigated in this paper. It is shown that an appropriate choice of the shape and sheet resistance of the pattern allows extending an absorption spectrum up to an octave and beyond, which is very competitive over alternative solutions. The pattern is made of ink with graphene nano-platelets, which allows achieving expected sheet resistance with decent repeatability, what is confirmed with measurements undertaken with the DC point probe and microwave dielectric resonator techniques. An exemplary sample of the proposed absorber is manufactured and characterized, indicating a very good agreement between theoretical study and experiments.
Keywords :
dielectric resonators; electromagnetic wave absorption; frequency selective surfaces; graphene; ink; microwave materials; microwave resonators; nanostructured materials; C; DC point probe; absorption spectrum; broadband absorber; broadband flexible electromagnetic absorbing panel; conducting surface; dielectric spacer; graphene nanoplatelets; microwave dielectric resonator techniques; resistive pattern; sheet resistance; Absorption; Admittance; Bandwidth; Dielectrics; Equivalent circuits; Ink; Resistance; Electromagnetic absorber; equivalent circuit; graphene nano-platelets; resistive pattern;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2014.2379932
