Study on the Properties of Surface Waves in Coated Ram Layers and Monostatic RCSR Performances of the Coated Slab

Chen, Haiyan; Zhou, Peiheng; Chen, Liang; Deng, Longjiang

doi:10.2528/pierm09122101

Cited by 20 publications

(11 citation statements)

References 15 publications

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“…3(b) in Ref. [16]. This material is obtained on the basis of polymer composites filled with carbonyl iron and Co 2 Z ferrite.…”

Section: Resultsmentioning

confidence: 99%

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Improvement of Surface Electromagnetic Waves Attenuation With Resistive Loading

Chen¹,

Deng²,

Zhou³

et al. 2011

PIER Letters

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Abstract-Electromagnetic properties of conventional radar absorbing materials (RAM) make it difficult to use them to provide remarkable surface electromagnetic waves (SEMW) attenuation with thin thickness at low radar frequencies such as in the UHF and L bands. In this paper, a composite structure realized by a grounded RAM slab covered by a resistive sheet is proposed. The use of a resistive sheet results in a significant increase of SEMW attenuation performance at low frequency, but almost no increase in its thickness. The electromagnetic scattering properties for a target coated with the RAM with/without covered by a resistive sheet are considered for interpreting the improvement of SEMW attenuation with resistive loading. Using a method-ofmoments (MoM) computational scheme, we explore the performance of the proposed composite structure as radar backscattering suppression for a metal slab at low radar frequencies. It is found that the RAM with resistive loading has significantly increased SEMW attenuation at low frequencies, and advances the large incidence angle or grazing angle mono-static radar cross section (RCS) reduction of the coating slab further than the RAM without resistive loading case.

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“…3(b) in Ref. [16]. This material is obtained on the basis of polymer composites filled with carbonyl iron and Co 2 Z ferrite.…”

Section: Resultsmentioning

confidence: 99%

“…(4) in Ref. [16]. In this paper, the electromagnetic scattering properties presented by coated slab are discussed.…”

Section: Designmentioning

confidence: 90%

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Improvement of Surface Electromagnetic Waves Attenuation With Resistive Loading

Chen¹,

Deng²,

Zhou³

et al. 2011

PIER Letters

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“…The third technique for RCS reduction is based on objects' coating [9,10], the creation of multiple reflected waves canceling each other as its operational principle.…”

Section: Introductionmentioning

confidence: 99%

A Novel Approach for RCS Reduction Using a Combination of Artificial Magnetic Conductors

Cos¹,

Álvarez-López²,

Las-Heras³

2010

PIER

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Abstract-A thin Artificial Magnetic Conductor (AMC) structure for Radar Cross-Section (RCS) reduction applications is presented. The manufactured prototype, which combines two unit-cell metallization sizes, presenting two resonant frequencies, shows broad AMC operation bandwidth, polarization angle independency, and its angular margin when operating under oblique incidence is also tested. It is shown that significant RCS reduction can be achieved with the proposed AMCs combination even if a 180 • phaseshift between reflected waves is not met. Two designs are considered: the already mentioned design combining AMCs with overlapped frequency bands and the second one combining Perfect Electric Conductor (PEC) and AMC surfaces. A comparison between these two designs regarding RCS reduction, supported by measurements in an anechoic chamber, is presented.

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“…For many years, Radar Cross Section (RCS) [1][2][3][4][5][6][7][8][9] reduction has been a field of interest for different applications where the goal is the reduction of the scattered electromagnetic field when illuminating the objectof-interest by an incident wave [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. Depending on the emitting and receiving device, RCS can be monostatic (the transmitter and the …”

Section: Introductionmentioning

confidence: 99%

On the Influence of Coupling Amc Resonances for RCS Reduction in the SHF Band

Cos¹,

Álvarez-López²,

Las-Heras³

2011

PIER

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Abstract-A novel approach to Radar Cross-Section reduction using a thin Artificial Magnetic Conductor (AMC) structure is presented. The novel AMC structure combines two unit-cell metallization sizes and so it presents two resonant frequencies. RCS reduction is based on destructive interference of two partial reflections. Taking as starting point a previous work showing significant RCS reduction based on the combination of two AMC surfaces with overlapped AMC operation bandwidths (so that they have similar reflection coefficient amplitude) without a 180 • -phaseshift, the key point of this contribution is to analyze the influence of the degree of the aforementioned overlapping on RCS reduction and to show that this achievement is based on coupling phenomena. A comparison of the achieved RCS reduction when combining two AMCs whose AMC operation bandwidth overlaps, two AMCs with non-overlapped AMC operation bandwidths, and PEC-AMC is presented. Prototypes of these three combinations have been manufactured (having them the same size) and their RCS has been measured in an anechoic chamber.

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Study on the Properties of Surface Waves in Coated Ram Layers and Monostatic RCSR Performances of the Coated Slab

Cited by 20 publications

References 15 publications

Improvement of Surface Electromagnetic Waves Attenuation With Resistive Loading

Improvement of Surface Electromagnetic Waves Attenuation With Resistive Loading

A Novel Approach for RCS Reduction Using a Combination of Artificial Magnetic Conductors

On the Influence of Coupling Amc Resonances for RCS Reduction in the SHF Band

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