Polarization independent frequency selective surface for marine and air traffic radar applications
KOMALPREET KAUR AMANPREET KAUR
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This article presents a polarization independent frequency selective Surface (FSS) with pass band characteristics for the ‘S’ (1.45–4.63 GHz.) and the ‘X’ (6.33–12.15 GHz) band. The proposed FSS has a miniaturized unit cell structure with optimized dimensions of 13 91391.605 mm3 that is imprinted on acommercially available FR4 substrate. Four stubs each of length 0.115 λ interleaved at the centre of each inner loop to achieve the required pass band performance. Since it is a symmetric structure, it gives a polarizationindependent performance for the pass band response (for S and X bands) with both TE and TM modes of operation. The AR bandwidth (<3 dB) for the ‘S’ and ‘X’ bands is 3.2 GHz and 5.82 GHz, respectively. The prototype of the proposed FSS is fabricated and tested using Agilent’s E 5063A a two port vector networkanalyser and two horn antennas with a calibrated gain of 12 dBi each (operating from 20 KHz to 20 GHz). The measured transmission parameters of the FSS that match well with the simulated ones allow its practical applicability for filtering out unwanted signals for the communication satellites, surface ship radars andmetrological satellites used in the ‘S’ and ‘X’ wireless communication bands respectively. It finds practical applicability in filtering out unwanted signals for the communication satellites, surface ship radars and metrological satellites used in the ‘S’ and ‘X’ wireless communication bands respectively.
KOMALPREET KAUR1 AMANPREET KAUR1
Volume 48, 2023
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