Inhomogeneous transmission line for determining the permittivity of a device under test in a position-resolved manner

A measuring carrier for spatially resolved meteorological determination of a measurement variable dependent on the dielectric permittivity of a device under test to be applied to the measuring carrier, comprising:

• a supporting means comprising a measuring surface, to which the device under test can be applied,
• a measuring transmission line which entirely or partially forms the measuring surface and is designed as an electrical series circuit comprising a multiplicity of transmission line cells for the purpose of transmitting an electromagnetic radio-frequency measurement signal which can be injected, the measuring surface therefore being structured in a cellular manner, wherein
• each of the transmission line cells of the measuring transmission line per se has a cell-individual propagation constant with respect to the radio-frequency measurement signal in a state free of a device under test, which propagation constant differs from the respective cell-individual propagation constants of the other transmission line cells, and
• is designed to assume a cell-individual propagation constant which differs from the state free of a device under test in a measuring state when the device under test is applied to the transmission line cell, in such a way that
• a change in the respective cell-individual propagation constant of each of the transmission line cells in the measuring state in comparison to the state free of the device to be tested causes a respective identifiable change component of a total change in a measurement variable which can be detected on the basis of the radio-frequency measurement signal and which is dependent on the dielectric permittivity of the measuring transmission signal as a whole.