Dual band polarization insensitive frequency selective surface absorber

Kumar, Awanish and Padhi, J and Reddy, GS and Narayan, Shiv (2019) Dual band polarization insensitive frequency selective surface absorber. In: MTT-S International Microwave and RF Conference, IMARC 2019, 13-15 December 2019, Mumbai, India.

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Abstract

This work presents dual band, polarization insensitive and angular stable radar absorber structure. Here, proposed absorber unit cell has two resonator structures M and N. Each resonator provides absorption at distinct frequencies in X and Ku band. Simulation results in different cases show that the structure is polarization insensitive and angular stable up to 60 0 . Calculated effective impedance plot and surface current distribution at the top and bottom surface supports the absorption mechanism at the resonance frequencies. To verify the simulations, a prototype of absorber is fabricated on FR-4 substrate and tested in an anechoic environment.

Item Type: Conference or Workshop Item (Paper)
Subjects: ENGINEERING > Electronics and Electrical Engineering
PHYSICS > Solid-State Physics
PHYSICS
Depositing User: Mrs SK Pratibha
Date Deposited: 23 Nov 2021 11:42
Last Modified: 23 Nov 2021 11:42
URI: http://nal-ir.nal.res.in/id/eprint/13332

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