Title :
On the solution of periodical structures with the GMT
Author :
Li, J.M. ; Kiener, S.J.
Author_Institution :
Inst. fur Feltheorie und HFE, Zurich, Switzerland
Abstract :
The state of the art of the MMP (multiple multipole) codes is examined, and different possible combinations with other methods are described. The basic principles of the MMP codes and of the combination with the Floquet theory are considered, and an overview of the analytical basis path of resolution is given. A simple example involving a finite or infinite chain of perfectly conducting 2-D cylinders is presented. The comparison between the normal MMP code and the one with the Floquet processor shows that, on the one hand, the number of cylinders is strongly dependent on the frequency (low frequency needs more). On the other hand, it is necessary to take many Floquet modes to get an accurate field representation.<>
Keywords :
electromagnetic field theory; numerical methods; partial differential equations; Floquet theory; GMT; MMP codes; finite chain; generalised multipole technique; infinite chain; multiple multipole codes; partial differential equations; perfectly conducting 2-D cylinders; periodical structures; Art; Geometry; Graphics; Milling machines; Partial differential equations; Propagation constant;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/APS.1990.115184
