Spherical wave expansion of the time-domain free-space Dyadic Green's function
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, cilt.52, sa.3, ss.677-683, 2004 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 52 Sayı: 3
- Basım Tarihi: 2004
- Doi Numarası: 10.1109/tap.2004.825494
- Dergi Adı: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.677-683
- Anahtar Kelimeler: Dyadic Green's function, spherical wave expansion, time-domain analysis, SHORT-PULSE ANTENNAS, NEAR-FIELD ANALYSIS
- Orta Doğu Teknik Üniversitesi Adresli: Hayır
Özet
The importance of expanding Green's functions, particularly free-space Green's functions in terms of orthogonal wave functions is practically self-evident when frequency domain scattering problems are of interest. With the relatively recent and widespread interest in time-domain scattering problems, similar expansions of Green's functions are expected to be useful in the time-domain. In this paper, an expression, expanded in terms of orthogonal spherical vector wave functions, for the time-domain free-space dyadic Green's function is presented and scattering by a perfectly conducting sphere is studied as an application to check numerically the validity and to demonstrate the utility of this expression.