Analysis of Array Truncation and Reactive Fields above a Perfectly Conducting Surface
نویسندگان
چکیده
Finite PMC surfaces have been analyzed with the help of a commercial software. The PMC effect is illustrated and the amplitude of successive evanescent waves is analyzed. It is found that the evanescent waves, as well as the effects of array truncation, are the strongest near the PMC. The evanescent waves may have a strong impact on the reactive component of antennas placed near the surface.
منابع مشابه
General formulation for light scattering by a dielectric body near a perfectly conducting surface
We present an efficient approach for calculating the electromagnetic scattered fields (light) from a single dielectric body situated above a perfectly conducting (or reflecting) half-space. This approach employs the boundary integral equation method and is applicable to arbitrarily shaped scatterers located anywhere above the conducting half-space surface, impinged upon by arbitrary incident fi...
متن کاملElectromagnetic Scattering from a Circular Target above or below Rough Surface
The electromagnetic scattering from a perfectly electric conducting (PEC) target located above or below rough surface is investigated, for the case of TM polarization, using the Method of Moments (MoM). The rough surface with Gaussian profile is used to emulate the realistic situation of a statistically-rough surface, while the tapered incident wave is chosen to reduce the truncation error. The...
متن کاملMrtd Electromagnetic Scattering Analysis
In this paper, we ha e de eloped a multiresolution time( ) ( ) domain MRTD scheme to analyze two-dimensional 2-D scattering objects with comparison to the corresponding finite-difference time( ) domain FDTD method. We ha e applied an anisotropic perfectly ( ) matched layer APML absorber for open boundary truncation in the content of the MRTD scattering analysis. In addition, we ha e constructed...
متن کاملNumerical Methods for Analysis of Em Scattering from an Electrically Large Ocean Surface
Electromagnetic scattering is considered from finite and electrically large perfectly conducting rough surfaces. Three solution approaches are considered. The first two are based on a multi-level fast-multipole algorithm (MLFMA) formulation. In one MLFMA approach the rough surface resides in free space and is terminated by a resistive taper. In the second MLFMA approach the rough surface is ter...
متن کاملQuantum vacuum pressure on a conducting slab
The casimir pressure on a non ideal conducting slab is calculated. Using a simple model for the conductivity according to which the slab is perfectly conducting at frequencies below plasma frequency ωp and perfectly transparent above such frequency, it is found that the vacuum pressure on each surface of the slab is h̄ω p 24πc which is finite without removal of any divergence.
متن کامل