Computation of radome reference cases using a rotationally symmetric full wave solver

• We demonstrate how to compute radome reference cases for benchmarkingradome codes. Radomes are electrically large structures, and to facilitate thecomputations a rotationally symmetric structure is assumed. We show howto implement this in the commercial software Comsol Multiphysics, and howto extract the relevant data for comparison. Two example geometries areanalyzed: a spherical shell radome, and an ogive shaped radome. In eachcase, the radome is in the order of ten wavelengths, but it is still possible tosimulate on a regular laptop platform in about a minute. Using a platform withmore memory and spending more time to simulate more modes and synthesizethe results, reference cases for even larger radomes with realistic feeds can besimulated, which is suggested as a topic for future studies. Results for anogive shaped radome with a diameter of 30 and 50 wavelengths using a highlysymmetrical antenna are provided.

Ämnesord

NATURVETENSKAP  -- Matematik -- Beräkningsmatematik (hsv//swe)

NATURAL SCIENCES  -- Mathematics -- Computational Mathematics (hsv//eng)

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