volume | PIER Journals

Abstract

A detailed study on the performance of square loop High impedance Surface (HIS) on lossy dielectric with its Artificial Magnetic Conductor (AMC) Property changing to narrow band absorber and then to Perfect Electric Conductor (PEC) depending on the loss in the dielectric is presented in this paper. An equivalent circuit modelling is used to theoretically explain how this transition is happening. This observed narrow band absorption (0.08 GHz) on the thin (0.016λ) lossy dielectric is scalable to different operating frequencies by varying the dimension of the geometry. The simulation studies on the effect of different geometrical, dielectric and incident wave parameters on the absorption property of this lossy HIS are also dealt with in this paper. Experimental investigation is in good agreement with simulated result and equivalent circuit modelling.

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Mrs. Vadakkekalathil Libi Mol

Dr. Sreekala P. Sasikumar

Dr. Dibin Mary George

Dr. Arimpoorpallan Lindo

Dr. Neeraj Kavalparambil Pushkaran

Dr. Aanandan Chandroth