On the Physical Realizability of Broadband Lumped-Parameter Equivalent Circuits for Energy-Collecting Structures.
Abstract
The practical implementation of equivalent circuits which represent the energy delivered to an arbritrary load impedance by an antenna or a port on a scatterer is discussed. Particular attention is paid to the positive-real function issues associated with the equivalent admittance of the structure when evolved from the point of view of the Singularity Expansion Method. A proof is given which establishes that the admittances associated with current eigenmode contributions to the total current are individually positive-real functions. An ad hoc approach to approximating these admittances with simpler pole-pair positive-real admittances is given for high-Q structures. A brief survey of the applicable circuit synthesis algorithms and their features is provided. Some fundamental considerations in the implementation of the sources representing the energy coupled from the incident wave are presented. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1979
- Accession Number
- ADA079962
Entities
People
- Donald R. Wilton
- L. Wilson Pearson
Organizations
- University of Kentucky