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The problem of creating meter of complex reflection coefficient based on the electromagnetic approach using E-plane dividers is studied. A rigorous electromagnetic model of direct and inverse problems of five- and six-port measurements of complex reflection coefficient is derived. Frequency dependencies of model parameters are calculated. Properties of E-plane junctions are investigated. Approximations...
The robust estimation of far-field radiation pattern from the near-field measurement data, which are distorted by additive noise and random impulses, is suggested. The proposed technique is based on the two-stage algorithm. The first stage is to determine the radiation sources from the data of near-field measurements by the “dual method of minimum spatial extent.” The second stage is to calculate...
The problem of creating fast virtual oscilloscope of complex reflection coefficient based on the electromagnetic approach using cross-shaped splitter at the measurement transducer is studied. On the basis of the adequacy of the electromagnetic model and the actual design of meter the measurement error of the reflection coefficient of less than 5% and the possibility of measuring the parameters of...
Problem of spatial spectrum extrapolation is considered. Method of minimal spatial extension of solution is used. Two-channel version of functional of quasi-extension is proposed. Case of complex point sources is investigated. Reduction of errors is observed in comparison with one-channel version.
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