Transformation of surface waves in homogeneous absorbing layers

Ufimtsev, Pyotr Ya.; Ling, R. T.; Scholler, J.D.

doi:10.1109/8.833070

Cited by 22 publications

(16 citation statements)

References 8 publications

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“…These waves are generated when external magnetic field is applied perpendicular to the magnetic vector of EM waves. MSW propagates perpendicularly to the EM wave's propagation on both sides [9][10][11].…”

Section: Theorymentioning

confidence: 99%

On switching behavior of ferrite substrate with magnetostatic and spin wave exchange term

Saxena¹,

Kumar

Pourush³

2010

Indian J Phys

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Due to the generation of magnetostatic and spin waves, switching phenomena of ferrite substrate with a normal magnetic biasing field is presented. Generally below the X-band of microwave range, the Pozar's quasi TEM waves (extraordinary waves) were studied, but for the study of X-band there should be an inclusion of spin wave exchange term (wr) in the magnetostatic wave analysis which depends upon the static internal field (Hex). This term is included in analysis because the wavelength of microwave approach is the inter-atomic distance of ferrite material. In this work we synthesize LiTi ferrite through Solid State Reaction Technique (SSRT) and obtained electric and magnetic properties for the analysis. Absorbing and transmission power coefficients have been calculated to obtain the power loss and transmitted power through the substrate, respectively. The absorbing power coefficient verifies the switching behavior of substrate for certain range of applied external magnetic field (H o ) which depends on the resonance line width parameter (DH) of ferrite material.

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Section: Theorymentioning

confidence: 99%

On switching behavior of ferrite substrate with magnetostatic and spin wave exchange term

Saxena¹,

Kumar

Pourush³

2010

Indian J Phys

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“…Ufimtsev et al [5][6][7], Paknys and Jackson [8], and Neve and Paknys [9] have analyzed the fundamental characteristics of SEMW in loss coating layer including attenuation and propagation constants, electric and magnetic losses, phase and energy velocities, etc.. SEMW suppression employing resonance-type periodic structures are reported by a number of investigators [10][11][12]. Richmond [13], and Shivelyd [14] have examined the theory of surface waves propagation on a thin resistive sheet, and this theory would be useful in analyzing the scattering properties of thin resistive strips.…”

Section: Introductionmentioning

confidence: 99%

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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“…Whereas decreasing h, thus leads to a limitation of the antenna effectiveness, hence the reduction of its band-width. The reduction of surface waves, for the microstrip antennas printed on ferrites, has been discussed by many researchers [42][43][44][45][46]. Whereas in [47][48][49], electromagnetic band gap (EBG) structures, also known under the name of photonic crystals were carried out to reduce, and in certain cases, to eliminate the surface waves, which lead to an increase in the directivity and the bandwidth.…”

Section: ) Cmentioning

confidence: 99%

Surface Waves Investigation of a Bianisotropic Chiral Substrate Resonator

Zebiri¹,

Benabdelaziz²,

Sayad³

2012

PIER B

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Abstract-In this paper we studied the effect of a chiral-substrate bianisotropy on the surface waves of the microstrip resonator. The effective technique used to formulate the characteristic equations of the surface waves in a medium equipped with a complex anisotropy is presented and detailed. The equations concerning an evaluation of the cut-off frequencies are given in more detailed forms. A simple approximate formula for estimating the wave number of the surface mode TM 0 and TE 1 are obtained. An estimated maximum value of chiral slab thickness without the excitation of surface waves is given. All of our original results are compared with those published in the literature.

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Transformation of surface waves in homogeneous absorbing layers

Cited by 22 publications

References 8 publications

On switching behavior of ferrite substrate with magnetostatic and spin wave exchange term

On switching behavior of ferrite substrate with magnetostatic and spin wave exchange term

Improvement of Surface Electromagnetic Waves Attenuation With Resistive Loading

Surface Waves Investigation of a Bianisotropic Chiral Substrate Resonator

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