NASA Technical Reports Server (NTRS) : Large pdf

NASA Technical Reports Server (NTRS) : Large

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Description of the Book:

In some applications, the wires used to construct the grids are plated over with highly conducting materials such as gold or silver. In those cases, depending on the frequency of operation, the coating may not be thick enough to prevent currents from flowing in the substrate. The conjugate gradient method, in conjunction with the fast Fourier transform is employed to solve the problem of scattering from such rectangular grids. An internal impedance is utilized to account for the effects of the substrate conductivity on the induced current densities. Calculated values of the reflection coefficient and induced currents from different coating thicknesses, angles of incidence and polarizations are presented and discussed

• Creator/s: NASA Technical Reports Server (NTRS
• Date: 8/1/1986
• Year: 1986
• Book Topics/Themes: NASA Technical Reports Server (NTRS), ANTENNAS, ELECTRICAL RESISTIVITY, ELECTROMAGNETIC WAVE TRANSMISSION, MESH, REFLECTORS, WIRE, COATINGS, COEFFICIENTS, ELECTRICAL IMPEDANCE, FAST FOURIER TRANSFORMATIONS, MOLYBDENUM, SUBSTRATES, Christodoulou, C. G

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