Title :
Full-wave analysis of quasi-optical structures
Author :
Nuteson, Todd W. ; Monahan, Gregory P. ; Steer, Michael B. ; Naishadham, Krishna ; Mink, James W. ; Kojucharow, Konstantin K. ; Harvey, James
Author_Institution :
Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA
fDate :
5/1/1996 12:00:00 AM
Abstract :
A full-wave moment method implementation, using a combination of spatial and spectral domains, is developed for the analysis of quasi-optical systems. An electric field dyadic Green´s function, including resonant and nonresonant terms corresponding to coupling from modal and nonmodal fields, is employed in a Galerkin routine. The dyadic Green´s function is derived by separately considering paraxial and nonparaxial fields and is much easier to develop than a mixed, scalar and vector, potential Green´s function. The driving point impedance of several antenna elements in a quasi-optical open cavity resonator and a 3×3 grid in free space are computed and compared with measurements
Keywords :
Galerkin method; Green´s function methods; antenna theory; cavity resonators; method of moments; Galerkin method; antenna elements; driving point impedance; dyadic Green function; full-wave analysis; moment method; nonparaxial fields; open cavity resonator; paraxial fields; quasi-optical structures; spatial domain; spectral domain; Antenna measurements; Cavity resonators; Extraterrestrial measurements; Grid computing; Impedance; Laser cavity resonators; Moment methods; Mutual coupling; Power system modeling; Resonance;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
