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Engineering Commons

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Electrical and Computer Engineering

George Fox University

Series

1993

Articles 1 - 2 of 2

Full-Text Articles in Engineering

Characterization Of A Resistive Half Plane Over A Resistive Sheet, John R. Natzke, John L. Volakis Aug 1993

Characterization Of A Resistive Half Plane Over A Resistive Sheet, John R. Natzke, John L. Volakis

Faculty Publications - Department of Electrical Engineering and Computer Science

The diffraction of a resistive half plane over a planar resistive sheet under plane wave illum1ination is determined via the dual integral equation method (a variation of the Wiener-Hopf method). The solution is obtained upon splitting the associated Wiener-Hopf functions via a numerically efficient routine. Based on the derived exact half plane dliffraction coefficient, a simplified equivalent model of the structure is developed when the separation of the half plane and resistive plane is on the order of a tenth of a wavelength or less. The model preserves the geometrical optics field of the original structure for all angles and …


Electric Fields Of An H-Plane Tapered Iris, John R. Natzke, T. Koryu Ishii Aug 1993

Electric Fields Of An H-Plane Tapered Iris, John R. Natzke, T. Koryu Ishii

Faculty Publications - Department of Electrical Engineering and Computer Science

Microwave electric fields of an X -band H -plane tapered iris are calculated and plotted using the moment method for the first time. The moment method results are compared with previously obtained experimental measurements and numerical results based on an equivalent circuit approach, giving confirmation that the tapered iris is both a reciprocal and asymmetrical network. The moment method results now reveal that the asymmetry stems from the asymmetry in the phase of the input and output voltage reflection coefficients, their magnitudes being equal.