Polarization Independent Triple-Band Frequency Selective Surface Based on Matryoshka Geometry

2019 ◽  
Author(s):  
Alfredo Gomes Neto ◽  
Jefferson Costa e Silva ◽  
Ianes Barbosa Grecia Coutinho ◽  
Marina de Oliveira Alencar ◽  
Iasmin de Franca Albuquerque ◽  
...  
Keyword(s):  
Frequency Selective Surface ◽  
Band Frequency ◽  
Frequency Selective ◽  
Polarization Independent ◽  
Triple Band

Design and fabrication of miniaturized tri-band frequency selective surface with polarization-independent and angularly stable response

Frequenz ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Sayi Soundariya Sampath ◽  
Ramprabhu Sivasamy
Keyword(s):  
Resonance Frequency ◽  
Figure Of Merit ◽  
Close Agreement ◽  
Single Layer ◽  
Frequency Selective Surface ◽  
Unit Cell ◽  
Band Frequency ◽  
Tm Mode ◽  
Frequency Selective ◽  
Polarization Independent

Abstract A single-layer miniaturized tri-band frequency selective surface (FSS) for bandstop filtering applications has been proposed in this work. The metallic layer with four-branched meandered pattern connected in the center is engraved on a dielectric FR-4 substrate. The three stopbands operating at 2.6, 5.6, and 7.1 GHz provides −10 dB bandwidth of 437, 447, and 552 MHz respectively. The size of the unit cell is 0.067 λ∘ × 0.067 λ∘, where λ∘ is the wavelength of the first resonance frequency. As a figure of merit, the symmetric FSS structure provides the advantage of polarization independence. The proposed compact FSS structure exhibits a stable angular response up to 60° in TE and TM mode. Moreover, measurements obtained from the fabricated prototype are compared with the simulated results and are found to be in close agreement.

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