Novel Metamaterial-Element-Based FSS for Airborne Radome Applications

Narayan, Shiv; Gulati, Gitansh; Sangeetha, B.; Nair, Raveendranath U.

doi:10.1109/tap.2018.2851365

Cited by 75 publications

(32 citation statements)

References 31 publications

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“…In another approach, the capped dielectric FSS with a −3 dB FBW of 20% is reported in [28] where the structure requires perforated metallic plates and capped dielectric which makes the fabrication process complex. In X‐band radome applications, the metamaterial substrate has been used to design a Swastik‐shaped FSS [29]. However, insertion loss increases with the decrease in the operating frequency and thus, the forward‐path gain is inconsistent over the entire X‐band.…”

Section: Introductionmentioning

confidence: 99%

Tripole type wideband bandpass frequency selective surface for X‐band applications

Singh

Jha

Sharma

2020

IET Microwaves, Antennas & Propagation

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Section: Introductionmentioning

confidence: 99%

Tripole type wideband bandpass frequency selective surface for X‐band applications

Singh

Jha

Sharma

2020

IET Microwaves, Antennas & Propagation

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“…FSS is a kind of periodic artificial electromagnetic surface. Due to its low loss, low cost, low profile and easy conformal, FSS has been widely used in numerous areas such as radomes [1]- [4] rasorbers [5]- [8], antenna reflectors [9]- [12], spatial filters [13]- [16], as well as electromagnetic band gap materials [17]- [19].…”

Section: Introductionmentioning

confidence: 99%

Angularly Stable Bandpass Frequency Selective Surface Based on Metasurface

Sun

et al. 2020

IEEE Access

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A novel bandpass frequency selective surface (FSS) working at 2.4 GHz is proposed in this paper based on metasurface with independent-polarization, wide rejection band and good angular stability. The 10-dB upper stopband could cover 3.35-9.4 GHz with a fractional bandwidth of 94.9%. In addition, the filtering response could remain stable under different polarizations and incidence angles. Parameter analysis and equivalent circuit model are illustrated to explain the resonance behavior of the proposed FSS. It is demonstrated that the lower resonant point in the stopband could be tuned independently by changing the length of small rectangular patches in the top layer. While the higher resonant point could be changeable independently by adjusting the diameter of circular gap in the bottom layer. A prototype of the proposed FSS is fabricated and its simulated results are coincided with measurements.

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“…The frequency selective surface (FSS) is a structure capable of frequency selective characteristics for different frequencies and different polarized electro‐magnetic wave 1 . Owing to this spatial filtering characteristic, FSS has been widely used in radomes, reflect‐array antenna, radio cross‐sectional (RCS) reduction, polarization converter, microwave absorber, and so on 2‐6 . With the rapid development of multifrequency communication system, multiband FSSs have attracted widespread attention.…”

Section: Introductionmentioning

confidence: 99%

A low profile miniaturized widely‐spaced triband bandpass FSS using coupled resonance

Liu

et al. 2020

Int J RF Microw Comput Aided Eng

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In this article, a triband highly selective widely-spaced bandpass frequencyselective surface (FSS) is presented. The proposed FSS is consisted of five metal layers that are separated from each other by four dielectric substrates. Using coupled resonance between layers, three passbands operating at 11.0, 17.4, and 31.9 GHz are achieved. Meanwhile, the dimension of the unit cell of the FSS can be achieved in 0.139λ 0 × 0.139λ 0 (λ 0 is the wavelength of the first resonant frequency in the free-space), and the overall thickness can be 0.057λ 0 , exhibiting miniaturization and low profile characteristics. Due to the proposed FSS can provide multitransmission zeros between two adjacent passbands, the relative bandwidth of the spacing between the second passband and the third passband can reach 58.8% from 17.4 to 31.9 GHz. Thus, a widely spaced response is achieved. In practical, the proposed FSS has an important role in the radio cross-sectional reduction of some military systems, such as homing head, which can simultaneously detecting mid-range and long-range targets. Furthermore, the FSS shows the stable response of angles for both TE and TM polarizations. The equivalent circuit model (ECM) is provided to analysis its operating principle. Finally, a prototype of the proposed FSS is simulated, fabricated and measured. The measured results are in good agreement with the simulation ones.

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Novel Metamaterial-Element-Based FSS for Airborne Radome Applications

Cited by 75 publications

References 31 publications

Tripole type wideband bandpass frequency selective surface for X‐band applications

Tripole type wideband bandpass frequency selective surface for X‐band applications

Angularly Stable Bandpass Frequency Selective Surface Based on Metasurface

A low profile miniaturized widely‐spaced triband bandpass FSS using coupled resonance

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