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An accurate modeling of a top-hat monopole transition in a parallel-plate waveguide is performed using the method of moments/Green's function method. The selection of the appropriate source-field relationship to override divergence series is discussed in detail. Numerical results are given for the input impedance of a top-loaded coaxial transition. A mode-matching solution is used as a reference to validate the results.
Microwave Theory and Techniques, IEEE Transactions on (Volume:53 , Issue: 3 )
Date of Publication: March 2005