Perfect Electromagnetic Conductor

Abstract-Propagation of electromagnetic fields and power in a circular waveguide containing chiral nihility metamaterial is studied. Space inside the waveguide is divided into two circular regions. One region contains chiral nihility metamaterial while other region is of free space. Two cases of the waveguide, in this regard, are considered for analysis. For the case of perfect electric conductor (PEC) waveguide, there is no net electric field and power propagation in chiral nihility region of the guide whereas both fields and power exist in nonnihility region (which is free space in our cases) of the guide. For perfect electromagnetic conductor (PEMC) waveguide, both electric and magnetic fields exist in the chiral nihility and non-nihility regions.

Section: Pemc Circular Waveguidementioning

confidence: 99%

Electromagnetic Fields in a Circular Waveguide Containing Chiral Nihility Metamaterial

Baqir¹,

Syed²,

Naqvi³

2011

“…Lindell and Sihvola introduced a novel concept of a perfect electromagnetic boundary (PEMC) as a generalization for perfect electric (PEC) and the perfect magnetic (PMC) boundaries [1][2][3][4][5][6][7]. The electric and magnetic fields at this new boundary are related by [1]:…”

Section: Introductionmentioning

confidence: 99%

Design of a Perfect Electromagnetic Conductor (Pemc) Boundary by Using Periodic Patches

El-Maghrabi¹,

Attiya²,

Hashish³

2011

Abstract-Perfect electromagnetic conductor (PEMC) is a novel concept in electromagnetic fields of interesting properties and many potential applications. This paper introduces a new technique to design an artificial surface that has equivalent PEMC properties. The proposed PEMC boundary is based on a periodic structure composed of two conducting patches on a grounded dielectric slab. One of them is embedded inside the substrate and the other lies on the surface of the substrate. A conducting via is used to connect the two patches. In the resulting PEMC boundary, the polarization of the reflected wave is controlled by the tilting angle between the two patches.

“…PEMC material introduced by Lindell and Shivola [22] attracted the attention of many researchers [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Cylindrical Invisibility Cloak Incorporating Pemc at Perturbed Void Region

Shahzad¹,

Qasim²,

Ahmed³

et al. 2011

Abstract-A cylindrical wave expansion method is used to obtain the scattering field for a two dimensional cylindrical invisibility cloak incorporating perfect electromagnetic conductor (PEMC) at perturbed void region. A near-ideal model of the invisibility cloak is set up to solve the boundary-value problem at the inner boundary of the cloak shell. It is confirmed that a cloak with the ideal material is a perfect cloak by observing the change of the scattering coefficients from the near-ideal case to the ideal one. However, because of the slow convergence of the zeroth-order scattering coefficients, a tiny perturbation on the cloak would induce a noticeable field scattering. A better convergence rate of the scattering coefficients has been observed for decreasing δ in PEMC case.