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Creators/Authors contains: "Saha, Arun K"

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  1. ; (, IEEE)
    An artificial or meta material was fabricated by printing I-shaped metal patterns periodically on a dielectric host medium to demonstrate frequency blocking property. The research was conducted by 3D electromagnetic simulation software first and then verified by several experiments. Experimental results showed that center frequency of blocked band could be controlled by adjusting the size and shape of I-shaped metal patterns. 
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  2. ; (, IEEE Southeastcon 2022)
    A theoretical analysis is conducted to understand the role of dielectric loss component in the design process of a microwave absorber. The analysis starts with the determination of input impedance of the absorber and equating this to free space impedance in order to develop the impedance matching equation. The result of analysis showed that absorbing material must have some amount of loss component for impedance matching at a certain frequency and for perfect impedance matching a specific value of loss factor is required along with specific value of dielectric constant and material thickness. 
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  3. ; (, IEEE SoutheastCon 2021)
    A microwave absorber is designed with a given absorbing material whose relative permittivity and permeability are known. In this design process, impedance matching between absorber and free space is achieved by circular metal patches of predesigned shape printed periodically on absorbing material. Designed microwave absorber along with predesigned designed metal strip is modeled in 3D electromagnetic simulation software HFSS. Simulated frequency response of reflection coefficient verifies impedance matching and absorption at design frequency. 
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