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New method is applied on linear phased array in order to increase the inter-element separation. The method is based on using elements of scan capability, where the element pattern has a null at specified direction. Dual mode horns are used here, where the position of the element pattern null is controlled by the relative amplitude and phase of the second mode. In this case if the element pattern null...
Analytical solution of a plane electromagnetic wave scattered by N dielectric coated conducting strips is presented. The solution of the problem is based on the boundary value method. The scattered field from each coated strip is expressed in terms of an infinite series of Mathieu functions of unknown coefficients which can then be calculated by enforcing the boundary conditions on each coated strip...
The radiation from a long dipole in the presence of an infinitely long circular conducting parallel cylinder is examined analytically, The expression for the far-zone field, which includes all successive multiple scattering terms between the dipole and the cylinder, is derived using an iterative approximate procedure. The current induced on the dipole due to backscattering from the cylinder is calculated...
A survey of the inverse black body radiation problem is presented including a modification to the Hamid-Ragheb approximation which leads to a new approximate formula for the Planck's radiation law valid at all frequencies. The modified regime is useful in solving the inverse black body radiation problem in closed form. The absolute percentage errors in constructing the area-coldness distribution due...
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