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Extrapolation of electromagnetic responses of resonant structures

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2 Author(s)
Frye, J.M. ; Clemson Univ., Clemson ; Martin, A.Q.

A new technique is presented here which utilizes both orthogonal polynomials and damped sinusoids to extrapolate time and frequency responses using only early-time and low-frequency data. Damped sinusoids are used to efficiently represent the effects of resonances while the remaining behavior is accurately characterized by polynomials. To ensure reliably accurate results, a genetic algorithm (GA) is used to select expansion parameters. The technique is demonstrated by extrapolating the driving-point current response of a resonant antenna.

Published in:

Antennas and Propagation Society International Symposium, 2007 IEEE

Date of Conference:

9-15 June 2007