Fluid dielectrics measurement technique using a waveguide slot bridge

An experimental method is suggested that supposes the study of characteristics of slot bridge (SB) cells in the multimode operating regime. It is based on the preliminary numerical investigation of the resonant scattering characteristics pf SE, i.e., the solution of the boundary value problem (BVP). The configuration of an experimental SE cell is computed according to the required frequency band and preliminary information about dielectric parameters of the the materials chosen for tests. Etalon scattering characteristics of art SE cell are computed by software development on the basis of a vigorous solution of the BVP, providing numerical data with required accuracy. (C) 1999 John Wiley & Sons, Inc.