A hybrid projection method for analysis of waveguide arrays with protruding dielectric elements: 2D problems

Modeling of Horn Array Antennas with Protruding Dielectric Elements

“…The code operation was tested by various ways including the power balance check, convergence of the results over the number of the modes taken into account and the number of the triangle functions, as well as comparison of the results to the data available in the literature for some partial cases. All the checks, like in [3], demonstrated high effectiveness of the proposed method.…”

“…The subsystems (6), (8), (9)-(12), (17), (19), and (20) constitute a complete infinite system of linear algebraic equations. After an appropriate truncation of the system and the procedure of its numerical solution, we obtain the array reflection coefficient 1 R directly, as well as we calculate the array element pattern by using the formula (see [3])…”

“…Such elements allow providing good matching of the array aperture to free space and shaping the flat-topped element patterns corresponding to use of minimum number of controlled elements with keeping maximum array gain in the specified sector of scan [2]. A review made in [3] on the methods of analysis and results obtained for waveguide-dielectric arrays has shown that the work in this area remains to be of interest both from the methodical viewpoint and in the course of studying the array properties and capabilities. In the paper [3], a hybrid projection method has been proposed and applied to analysis and optimization of arrays of stepped waveguides completely filled with dielectric protruding above their apertures.…”

“…A review made in [3] on the methods of analysis and results obtained for waveguide-dielectric arrays has shown that the work in this area remains to be of interest both from the methodical viewpoint and in the course of studying the array properties and capabilities. In the paper [3], a hybrid projection method has been proposed and applied to analysis and optimization of arrays of stepped waveguides completely filled with dielectric protruding above their apertures. The study in [3] has shown high efficiency of the approach, and in the present paper it is generalized on the case of more complex and more promising array geometry considered below.…”

“…In the paper [3], a hybrid projection method has been proposed and applied to analysis and optimization of arrays of stepped waveguides completely filled with dielectric protruding above their apertures. The study in [3] has shown high efficiency of the approach, and in the present paper it is generalized on the case of more complex and more promising array geometry considered below.…”