An approximate model for artificial chiral material

Bahr, A. J.; Clausing, K.R.

doi:10.1109/8.362815

Cited by 58 publications

(50 citation statements)

References 17 publications

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“…4 -6 On the other hand, embedding metallic resonant particles showing cross polarization effects ͑i.e., an electric polarization as a response to an applied magnetic field and vice versa͒ in a host dielectric medium is the usual technology for obtaining bi-isotropic and/or bianisotropic artificial media ͑i.e., media which replicate optical activity at microwave frequencies͒. [7][8][9][10] Indeed, all the aforementioned artificial materials ͑bi-isotropic, bianisotropic, NMPM, and left-handed materials͒ turn out to be very similar in many aspects. Thus, the presence of resonances in the commonly used bianisotropic and bi-isotropic inclusions suggests the existence of regions with negative permeability and/or permittivity, at least if losses are very low or, simply, ignored.…”

Section: Introductionmentioning

confidence: 99%

Role of bianisotropy in negative permeability and left-handed metamaterials

2002

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The recently proposed artificial media with negative magnetic permeability and left-handed metamaterials are revisited at the light of the theory of artificial bi͑iso/aniso͒tropic media. In particular, the existence of bianisotropic effects in those materials is investigated, making use of an approximate model. Some unexplained properties of the electromagnetic-wave propagation through these media, revealed by closer inspection of previous numerical simulations and experimental work, are highlighted. It is shown that these peculiarities are properly explained if the bianisotropy is explicitly accounted for. The bianisotropy is related to the existence of magnetoelectric coupling in the artificial constituents ͑artificial atoms͒ of the medium. A simple modification of the artificial atom that precludes the bianisotropy is also proposed.

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Section: Introductionmentioning

confidence: 99%

Role of bianisotropy in negative permeability and left-handed metamaterials

2002

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“…Ä ÓÇÛÇÐËË ÊÂAEÂÚ AEË×ÓÂÍÙËË. ¿ÕË ÊÂAEÂÚË ÓÇÛÇÐÞ ÎËÛß AEÎâ ÐÇÔÍÑÎßÍËØ ÍËÓÂÎßÐÞØ àÎÇÏÇÐÕÑÄ: AEÎâ ÏÂÎÇÐß-ÍËØ ÏÇÕÂÎÎËÚÇÔÍËØ ÔÒËÓÂÎÇÌ [12], ÓÂÊÑÏÍÐÖÕÞØ ÍÑÎÇÚÇÍ Ô ÄÞÔÕÖÒÂáÜËÏË ÍÑÐÙÂÏË [13], Ô×ÇÓ Ô ÄËÐÕÑÄÑÌ àÎÇÍÕÓËÚÇ-ÔÍÑÌ ÒÓÑÄÑAEËÏÑÔÕßá [14]. £ ÍÂÚÇÔÕÄÇ ÍËÓÂÎßÐÑÅÑ àÎÇ-ÏÇÐÕÂ ÖÒÑÏËÐÂÇÕÔâ ÕÂÍÉÇ ÎÇÐÕÂ ®ÈÃËÖÔÂ [15] …”

Section: 2°ãñãüçððââ íóöåñäââ òñîâóëêâùëâunclassified

Chiral electromagnetic objects

Katsenelenbaum¹,

Korshunova²,

Sivov³

et al. 1997

Usp. Fiz. Nauk

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“…Investigations show that Chiral medium possesses the property of reciprocity, while Tellegen medium is nonreciprocal. Many efforts have been made in the fabrication of these BI materials [4][5][6] because of their great potential in the millimeterwave and microwave applications such as antenna radomes [7], chiro-microstrip antennas [8], modes convertors [9], and polarization rotators [10]. Such material brings about new challenges to the EM theory since its constitutive relationships enforce an additional coupling between electric and magnetic fields.…”

Section: Introductionmentioning

confidence: 99%

Time-Domain Integral Equation Solver for Radiation From Dipole Antenna Loaded With General Bi-Isotropic Objects

Zhu¹,

Wu²,

Zhang³

et al. 2011

PIER B

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Abstract-Electromagnetic radiation by dipole antenna loaded with general bi-isotropic objects is investigated using time-domain integral equations. By introducing pairs of equivalent electric and magnetic sources, electromagnetic fields inside a homogeneous bi-isotropic region can be represented by these sources over its boundary. A series of coupled surface integral equations are obtained after imposing boundary conditions. These equations are solved numerically by the Galerkin's method that involves separate spatial and temporal testing procedures. The scaled Laguerre functions are used as the temporal basis and testing functions. The use of the Laguerre functions completely removes the time variable from computation, and the results are stable even at late times. Numerical results are presented and compared with analytical results, and similarities and differences are observed.

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An approximate model for artificial chiral material

Cited by 58 publications

References 17 publications

Role of bianisotropy in negative permeability and left-handed metamaterials

Role of bianisotropy in negative permeability and left-handed metamaterials

Chiral electromagnetic objects

Time-Domain Integral Equation Solver for Radiation From Dipole Antenna Loaded With General Bi-Isotropic Objects

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