Layout of the SIW cavity 1.
-field distribution of the SIW cavity and allocation of the sample.
Experimental response of the cavity with various materials.
Experimental sensitivity of cavity 1: (a) resonant frequency vs sample dielectric permittivity and (b) 3 dB bandwidth vs sample dielectric loss tangent.
Fractional change in resonant frequency vs sample permittivity values.
Characterized values from simulations using CPT for SIW.
Characterized values of materials from measurements.
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