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Schelkunoff electromagnetic waves pdf3/10/2023 ![]() The proposed concept is applied on a coaxial TEM-cell with a circular cross-section with random imperfections. ![]() Since this method starts with Maxwell’s equations, it can be used for a variety of applications. It is accomplished by projecting Maxwell’s equations onto eigenfunctions resulting in an infinite-dimensional differential equation system, the so-called Generalized Telegraphists Equations. Hence, this contribution proposes an approach for computing electromagnetic fields inside a TEM-cell considering mechanical tolerances and unknown input parameters. The results of the calculated model and the actual system may differ. ![]() However, in reality, mechanical tolerances and misalignment can decrease the field quality. Method B, also known as the standard field method, uses a calculated reference field based on the geometry of the measurement environment and its input parameters. ![]() The IEEE Std 1309 provides three methods to calibrate a field probe. An often-used field generator is a transversal electromagnetic (TEM) cell. Therefore, precise field calibration is required. The quality of a field probe calibration directly affects the uncertainty statement of radiated immunity tests.
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