Algorithm for the Synthesis of a Film Attenuator with Uniform Power Dissipation

Abstract

The problem of the synthesis of a film attenuator, performed by applying an absorbing material to the conductor, is considered. The absorbing material has a parameter of maximum dissipated power per unit area, then when synthesizing an attenuator to attenuate high powers, the problem of exceeding the maximum dissipated power per unit area may arise. A sectional attenuator structure has been proposed, which is a set of sections having different attenuation to reduce the power dissipated per unit area. An algorithm for the synthesis of a sectional attenuator is proposed. The attenuator sections are rectangles of various widths. The attenuation distribution is performed using the Taylor series expansion of mathematical functions. The properties of the functions are considered in relation to the problem of the attenuation distribution in the attenuator. The graphs of the dependence of the power depending on the attenuator section are plotted. Power distribution has been confirmed by simulation results. Theoretical calculations were confirmed by simulation results in CST Microwave Studio software.