Title :
Microwave pulse optimization for low attenuation in lossy dispersive media
Author :
Zhu, Guangran Kevin ; Hum, Sean V. ; Sarris, Costas D.
Author_Institution :
Edward S. Rogers Sr. Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada
Abstract :
The problem of designing a microwave pulse to minimize its attenuation in dispersive media is solved by formulating an optimization problem at a given point. The solution that maximizes the total energy of the pulse is the impulse response of the medium and its time-reverse. This method is applied to a good conductor, a medium described by the Rocard-Powles-Debye model, and a two-layer medium. This method of solving the pulse design problem using optimization theory can be extended to include other optimization criteria and applied to design pulses for propagation in arbitrary dispersive media.
Keywords :
dispersive media; electromagnetic pulse; inhomogeneous media; microwave propagation; optimisation; transient response; Rocard-Powles-Debye model; arbitrary dispersive media propagation; conductor; impulse response; lossy dispersive media; low attenuation minimization; microwave pulse optimization; optimization criteria; optimization theory; pulse design problem; two-layer medium; Attenuation; Dielectrics; Dispersion; Media; Microwave theory and techniques; Optimization; Scattering;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348428