A derived physically expressive circuit model for electrically small radiating structures
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AbstractRecently, a new radiation model for the partial element equivalent circuit (PEEC) technique has been proposed. This model makes use of the concept of generalized complex inductance to account for the radiation effect and preserve the (quasi-)static condition for the capacitance. Therefore, PEEC models with the radiation effect included consists of real-valued capacitors but complex-valued inductors. In this paper, a method for deriving a concise and physically intuitive equivalent circuit from such a radiating PEEC model is presented. The method is based on the Y -to-Δ transformation to eliminate all "unimportant" internal circuit nodes and results in an equivalent circuit with only a few nodes left. The equivalent circuit for a short electric dipole is first derived analytically to offer a simple explanation to the basic principles. The proposed method is then applied to several practical and electrically small antennas for more detailed demonstrations. Numerical results obtained from these examples suggest that a physically intuitive circuit model can potentially be derived for arbitrary radiating multi-conductor structures, showing the method is useful for analysis and design of modern integrated and electrically small antennas.
All Author(s) ListYeung L.K., Wu K.-L.
Journal nameProgress In Electromagnetics Research C
Volume Number40
PublisherEMW Publishing
Place of PublicationUnited States
Pages159 - 174
LanguagesEnglish-United Kingdom

Last updated on 2021-06-12 at 23:29