engleski

Radiation Pattern of Arrays Mounted on Conical Structures

The paper discusses the method for determining radiation pattern of an array mounted on a conical structure. Two types of antenna elements are considered: waveguide openings and microstrip patch antennas. The analysis method is based on the modal representation of the EM field, i.e. the solution procedure takes advantage of representing the fields as a sum of spherical harmonics with unknown amplitudes. By introducing normalized associate Legendre functions, together with pre-calculation of terms that depend only on conical geometry, an accurate and efficient program has been developed. A comparison was made between the calculated radiation pattern and the measurements of different waveguide and patch array configurations. All the considered results showed high accuracy of the developed method.

conical arrays; conformal antennas; waveguide antennas; microstrip antennas

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