Title :
Spatial error criterion for discrete complex image method
Author :
Karabulut, E.P. ; Erdogan, Alper T. ; Aksun, M.I.
Author_Institution :
Koc Univ., Istanbul, Turkey
Abstract :
Although DCIM is very robust and efficient to obtain spatial-domain Green´s functions from their spectral-domain counterparts in planar media, the method suffers from the lack of an error metric ensuring the accuracy of the end result, which deters CAD developers and engineers from using it in the development of commercial tools. To remedy this shortcoming of DCIM, a weighted 2-norm of the error in the spatial domain is defined and its mapping to the spectral domain is derived and proposed as the metric to be used in DCIM. In addition, the leakage problem of the multi-level implementations of DCIM is also eliminated. The resulting metric is implemented on the latest three-level DCIM and the proposed three-level DCIM is verified on a typical planar layered geometry.
Keywords :
Green´s function methods; image processing; CAD developers; CAD engineers; discrete complex image method; planar media; spatial error criterion; spatial-domain Green functions; spectral domain; typical planar layered geometry; weighted 2-norm; Approximation methods; Green´s function methods; IEEE Transactions on Microwave Theory and Techniques; Measurement; Microwave imaging; Microwave theory and techniques; Spectral analysis;
Conference_Titel :
Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4577-0250-1
