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Structures Containi...
Structures Containing Left-Handed Metamaterials with Refractive Index Gradient : Exact Analytical Versus Numerical Treatment
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- Dalarsson, Mariana (författare)
- KTH,Elektroteknisk teori och konstruktion
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- Jaksic, Zoran (författare)
- IHTM Institute of Microelectronic Technologies and Single Crystals, Belgrade, Serbia
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- Tassin, Philippe (författare)
- Vrije Universiteit Brussel, Brussels, Belgium
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(creator_code:org_t)
- Belgrade, Serbia : Society for Microwave Technique, Technologies and Systems, 2009
- 2009
- Engelska.
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Ingår i: Microwave Review. - Belgrade, Serbia : Society for Microwave Technique, Technologies and Systems. - 1450-5835. ; 15:2, s. 2-5
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Abstract
Ämnesord
Stäng
- We investigated propagation of electromagnetic waves through composite structures with negative refractive index, the popular ”left-handed metamaterials”, for the case when there is a gradient of refractive index. We obtained the exact analytical solutions to the Helmholtz equation valid for arbitrary steepness of the graded interface between the positive and the negative index part. We analyzed the special case of matched impedances of the two constituent materials within the metamaterial composite. We derived analytical expressions for the field intensity, transmission and reflection coefficients and compared them with the results obtained by the numerical simulations using the Finite Element Method. The model allows for arbitrary spectral dispersion and lossy media.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- Electromagnetic Metamaterials
- Left-Handed Metamaterials
- Negative Refractive Index
- Refractive Index Gradient
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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