An Angularly Stable Dual-Band FSS With Closely Spaced Resonances Using Miniaturized Unit Cell

Ghosh, Saptarshi; Srivastava, Kumar Vaibhav

doi:10.1109/lmwc.2017.2661683

Cited by 102 publications

(55 citation statements)

References 11 publications

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“…Even though the percentage reduction obtained by refs. 3,8,9 is close to that of the reported technique, it is important to note that the proposed FSS has the lowest operating frequency among all the existing designs. This can be verified from the tabulated frequency ratio (f x /f 1 ).…”

Section: Resultssupporting

confidence: 75%

“…In ref., 5 a center connected meandered structure was used to achieve a miniaturization of 88.6% at 2.3 GHz. Recently, in ref., [6][7][8][9] convoluted FSS structures were used to attain 68.3%, 88%, 90%, and 93% miniaturization at resonant frequencies of 6.4, 2.54, 3.8, and 2.35 GHz, respectively. However, miniaturization at lower frequencies still remains a challenge which can be overcome to a great extent with the design approach used in this paper.…”

Section: Introductionmentioning

confidence: 99%

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A novel open loop design technique for frequency selective surface miniaturization

Mellita

Chandu

Karthikeyan

2018

Micro & Optical Tech Letters

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In this letter, a highly miniaturizedal‐band frequency selective surface (FSS) is designed and experimentally verified. The proposed structure has orthogonally meandered metallic strips with an opening at one point in the loop. This single sided FSS operates at 1.23 and 3.3 GHz with a compact unit cell size dimension of 0.033λ0 × 0.033λ0 × 0.003λ0 where λ0 stands for the free space wavelength at the lower resonating frequency. Parametric and circuit analyses of the formulated structure has been carried out to have a comprehensive understanding of the model. The structure has stable resonance for TE and TM polarizations at various incident angles. The presented FSS is fabricated and measured. A good similitude between the simulation and measurement has been obtained.

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Section: Resultssupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

A novel open loop design technique for frequency selective surface miniaturization

Mellita

Chandu

Karthikeyan

2018

Micro & Optical Tech Letters

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“…So far, there are many mature technologies used to design multiband FSS, such as fractal technology, 7 perturbation technique, 8 combination technology, 9 complementary technology 10 and so on. The principle of fractal technology to achieve multi-band resonance is the use of the self-similarity of the elements.…”

Section: Introductionmentioning

confidence: 99%

A broadband miniaturized ultra‐thin tri‐band bandpass FSS with triangular layout

Liu

Kong

et al. 2019

Int J RF Microw Comput Aided Eng

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A tri-band broadband ultra-thin miniaturized highly selective bandpass frequencyselective surface (FSS) has been proposed by using coupled resonance. The proposed FSS is a three-layer periodic arrays consisting of three metal layers that are separated from each other by two dielectric substrates. Two exterior layers are composed of gridded-double hexagonal loops (G-DHLs), while the middle layer is composed of double hexagonal loops (DHLs) structure. The second passband has a relative bandwidth of more than 20%, exhibiting broadband characteristics. Due to the superior bandwidth of the hexagon loop, the design FSS can achieve both broadband and low insertion loss characteristics. The FSS show stable incident angles response and wide out-of-band rejection performance over a wide range of incidence angle of 60 for both TE and TM polarizations. The wide and sharp out-of-band rejection behavior is caused by multi-transmission zeros on both sides of each passband. The equivalent circuit model of the FSS is provided to analyze its operating principle. The prototype of this FSS is simulated, fabricated, and measured. The measured results show a good agreement with its theoretical analysis and simulation. K E Y W O R D Sbroadband, frequency selective surfaces (FSSs), low insertion loss, triangular layout, tri-band

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“…In recent years, the FSS with simple shape and closely spaced multi-band resonance of miniaturized size and stable response becomes a research hotspot because of the increasing demands on multi-functionality of antennas and filters for both commercial and military applications [7,8]. Dual [9,10,11,12,13,14], triple [15,16,17] and wideband [18,19] FSSs can be used for communication filtering, absorbing or electromagnetic interference (EMI) shielding. However, few can be applied to the passband with wide stopband [20,21].…”

Section: Introductionmentioning

confidence: 99%

A compact FSS with dual passbands and wide stopband

Xia¹,

Liu²,

Tang

et al. 2019

IEICE Electron. Express

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A novel compact multi-band frequency selective surface (FSS) with dual passbands and wide upper stopband is presented. The proposed FSS was originally a double-layer structure. The grid-double square loops (G-DSLs) are located at the bottom to achieve the dual passband characteristics. In order to realize wide upper stopband, a modified square ring and a Jerusalem cross (M-SR-JC) element structure at top and bottom are used. Considering the higher power engineering applications, the final FSS uses a multi-layer structure. The FSS provides two pass-bands centered at 3.8 and 5.8 GHz with relative bandwidths of 18.4% and 13.5%, respectively. It also provides wide stopband characteristics from 10.8 GHz to 14.5 GHz. The simulation and measurement are in good agreement. The novel FSS with dual passbands and wide upper stopband is compact; easy to design and fabricate, and achieves relatively stable multi-band response under different polarization states and different incident angles. The proposed FSS can better meet the engineering requirements.

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An Angularly Stable Dual-Band FSS With Closely Spaced Resonances Using Miniaturized Unit Cell

Cited by 102 publications

References 11 publications

A novel open loop design technique for frequency selective surface miniaturization

A novel open loop design technique for frequency selective surface miniaturization

A broadband miniaturized ultra‐thin tri‐band bandpass FSS with triangular layout

A compact FSS with dual passbands and wide stopband

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