A Fabry–Perot antenna using a frequency selective surface layer with wideband and Low RCS for Mm-wave applications

PourMohammadi, Peyman; Naseri, Hassan; Melouki, Noureddine; Ahmed, Fahad; Bizan, Mohamed Sedigh; Iqbal, Amjad; Denidni, Tayeb A.

doi:10.1016/j.aeue.2023.154736

Cited by 2 publications

(1 citation statement)

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“…Due to their excellent spatial electromagnetic filtering properties, FSS has been widely used in the development of microwave absorbers for electromagnetic stealth 3 – 7 and FSS low-scattering radomes 8 – 10 . The goal of these applications is to reduce the radar cross-section (RCS) of sensitive targets, both military and civilian 11 , 12 . Traditionally, FSS are generally designed as 2-D periodic arrays of slot elements with a first-order filtering response 13 , 14 .…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of a complementary structure-based high selectivity tri-band frequency selective surface

Li,

Weng,

et al. 2024

Sci Rep

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This work presents a novel tri-band bandpass frequency selective surface (FSS) that achieves high-order filtering responses in different frequency bands by means of a complementary structure. The proposed FSS is composed of three metal periodic arrays, which are separated by multilayer dielectric substrates. The gridded-double convoluted loop (G-DCL) structure, which is the middle layer structure, is a hybrid resonator that generates different resonant frequencies. The top and bottom layer structures are designed as complementary structures to the middle layer. To accurately describe the frequency responses, an equivalent circuit model (ECM) has been constructed over the entire band from 0 to 16 GHz. The results of the simulation indicate that the developed FSS can generate three pass-bands operating at 3.79 GHz, 8.34 GHz, and 12.52 GHz, respectively, and − 3 dB fractional bandwidths are 52.8%, 13.7%, and 19.7%. The transmission responses at the edges of each passband show a quick roll-off from the passband to the stopband, and there is significant out-of-band suppression between adjacent passbands. Moreover, the FSS maintains excellent angular and polarization stability within a 50° range. For verification, the tri-band FSS has been fabricated and tested. The experimental results match the simulation results, validating the accuracy of the FSS design.

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