Extension of the operating frequency range of a dielectric radio absorber with the help of frequency-selective surfaces

Babayan, Vladimir; Kazantsev, Yu. N.; Лопатин, А.В.; Malâ€TMtsev, V. P.

doi:10.1134/s1064226911110040

Cited by 7 publications

(7 citation statements)

References 12 publications

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“…The secondary resonance peak is close to the main resonance peak, this is one of the reason for the bandwidth extension. What's more, the interaction between the resonance in the FSS and the resonance in the MRA is under the condition of closeness of resonance frequencies, thus the range in which the MRA is matched with free space is widen [4].…”

Section: Resultsmentioning

confidence: 99%

“…The design procedure and experiment procedure is introduced in the following paragraphs. The measurement results show that the novel design of resistive double loops FSS is quite effective for broadening the absorption bandwidth of MRAs, the bandwidth is much wider than [4,10] while the thickness is thinner.…”

Section: Introductionmentioning

confidence: 99%

“…For an ideal RA, thin thickness and broadband absorption are two of the vital properties [1]. However, one of the properties is usually traded off for the other in practice, which leads to most RAs quoted are either relative too thick or narrowband [2][3][4]. About the problems of the thickness-to-bandwidth ratio of a RA, Rozanov pointed out that, for nonmagnetic broadband absorbers, the application of any physically realizable multilayered sheets made of dielectrics with frequency dependence of the permittivity cannot provide a −10 dB reflectivity level if the thickness of the absorber is less than 1/17 of the largest operating wavelength [5].…”

Section: Introductionmentioning

confidence: 99%

“…So far, it is rarely found that the FSS within MRAs is loaded with resistors which could improve the matching characteristic between layers. Single loop FSSs with one resonance frequency point could broaden the absorption bandwidth of MRAs as reported in [4,10], while the effect of double loops FSSs with two resonance frequency points remain to be researched.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A Thin and Broadband Microwave Absorber Based on Magnetic Sheets and Resistive FSS

Dong¹,

Bie²,

Zhou³

et al. 2015

PIER C

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Abstract-To achieve broadband microwave absorption, a three-layer structure is designed and manufactured. It involves a resistive frequency selective surface (FSS) sandwiched between two layers of magnetic sheets. The measurement results reveal that this structure exhibits −13 dB reflectivity in the frequency range of 7.9-18 GHz while the thickness is only 1.7 mm. The reflectivity bandwidth at the level of −10 dB is 11.4 GHz which is much wider than that of magnetic sheets with non-resistive FSS or the magnetic sheets without FSS. The effect of resistive FSS on the performance of the multilayered absorber is discussed in detail. It is concluded that an embedded resistive double loops FSS can result in a secondary resonance peak which obviously broadens the reflectivity bandwidth of the magnetic sheets.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Thin and Broadband Microwave Absorber Based on Magnetic Sheets and Resistive FSS

Dong¹,

Bie²,

Zhou³

et al. 2015

PIER C

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show abstract

“…The calculation of the frequency dependence of reflection coefficient from the surface of RAs was performed via transmission line theory [2,6] using experimentally measured complex permeability (Fig. 3) and permittivity spectra (Fig.…”

Section: Resultsmentioning

confidence: 99%

Optimized Frequency Selective Surface for the Design of Magnetic Type Thin Broadband Radio Absorbers

et al. 2017

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A novel frequency selective surface for expansion of operating frequency range of magnetic-type radio absorbers was elaborated. Frequency selective surface represents an array of flat electrically conductive elements deposited on the polyethylene terephthalate (PET) foil. The elements have a closed-loop structure on the one side of the foil, and on the opposite side, the conductive elements have the shape of solid fragments which connect projections of the neighboring closed loops. The advantage of such frequency selective surface design is that owing to capacitive shunting one can achieve the value of frequency selective surface quality factor (Q-factor) as low as 0.5. Operating frequency range and thickness of designed radio absorbers depend on the composition of polymer-magnetic material and the position of frequency selective surface therein.

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Magnetoactive elastomers with controllable radio-absorbing properties

Kuznetsova

Kolesov

Fionov

et al. 2019

Materials Today Communications

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Extension of the operating frequency range of a dielectric radio absorber with the help of frequency-selective surfaces

Cited by 7 publications

References 12 publications

A Thin and Broadband Microwave Absorber Based on Magnetic Sheets and Resistive FSS

A Thin and Broadband Microwave Absorber Based on Magnetic Sheets and Resistive FSS

Optimized Frequency Selective Surface for the Design of Magnetic Type Thin Broadband Radio Absorbers

Magnetoactive elastomers with controllable radio-absorbing properties

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