Constant Speed Parametrization Mapping of Curved Boundary Surfaces in Higher-Order Moment-Method Electromagnetic Modeling
Abstract
A constant speed parametrization (CSP) mapping of boundary surfaces is proposed for moment-method analysis of antennas and scatterers, along with its approximation using large higher-order Lagrange-type curved quadrilateral patches. The importance of the proper placement of interpolation nodes that ensures minimum mapped parametric space distortion (arc-length parametrization) is explained and demonstrated on simple examples. The CSP mapping results in on average five times lower radar cross section (RCS) error for a spherical scatterer than with the ray casting (central projection) parametrization mapping. The extension of the CSP concept to arbitrary surfaces is illustrated in modeling of the double-ogive target.
Keywords:
Curved parametric elements / electromagnetic analysis / geometrical mapping / higher-order modeling / moment methods / scatteringSource:
IEEE Antennas and Wireless Propagation Letters, 2011, 10, 1457-1460Funding / projects:
- Algorithms and software for frequency-domain and time-domain simulations of RF subsystems and electromagnetic sensors in ICT (RS-MESTD-Technological Development (TD or TR)-32005)
- National Science Foundation [ECCS-0650719, ECCS-1002385]
DOI: 10.1109/LAWP.2011.2180354
ISSN: 1536-1225
WoS: 000298888900003
Scopus: 2-s2.0-84855447137
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Institution/Community
VinčaTY - JOUR AU - Ilić, Milan M. AU - Savić, Slobodan V. AU - Ilić, Anđelija Z. AU - Notaros, Branislav M. PY - 2011 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4643 AB - A constant speed parametrization (CSP) mapping of boundary surfaces is proposed for moment-method analysis of antennas and scatterers, along with its approximation using large higher-order Lagrange-type curved quadrilateral patches. The importance of the proper placement of interpolation nodes that ensures minimum mapped parametric space distortion (arc-length parametrization) is explained and demonstrated on simple examples. The CSP mapping results in on average five times lower radar cross section (RCS) error for a spherical scatterer than with the ray casting (central projection) parametrization mapping. The extension of the CSP concept to arbitrary surfaces is illustrated in modeling of the double-ogive target. T2 - IEEE Antennas and Wireless Propagation Letters T1 - Constant Speed Parametrization Mapping of Curved Boundary Surfaces in Higher-Order Moment-Method Electromagnetic Modeling VL - 10 SP - 1457 EP - 1460 DO - 10.1109/LAWP.2011.2180354 ER -
@article{ author = "Ilić, Milan M. and Savić, Slobodan V. and Ilić, Anđelija Z. and Notaros, Branislav M.", year = "2011", abstract = "A constant speed parametrization (CSP) mapping of boundary surfaces is proposed for moment-method analysis of antennas and scatterers, along with its approximation using large higher-order Lagrange-type curved quadrilateral patches. The importance of the proper placement of interpolation nodes that ensures minimum mapped parametric space distortion (arc-length parametrization) is explained and demonstrated on simple examples. The CSP mapping results in on average five times lower radar cross section (RCS) error for a spherical scatterer than with the ray casting (central projection) parametrization mapping. The extension of the CSP concept to arbitrary surfaces is illustrated in modeling of the double-ogive target.", journal = "IEEE Antennas and Wireless Propagation Letters", title = "Constant Speed Parametrization Mapping of Curved Boundary Surfaces in Higher-Order Moment-Method Electromagnetic Modeling", volume = "10", pages = "1457-1460", doi = "10.1109/LAWP.2011.2180354" }
Ilić, M. M., Savić, S. V., Ilić, A. Z.,& Notaros, B. M.. (2011). Constant Speed Parametrization Mapping of Curved Boundary Surfaces in Higher-Order Moment-Method Electromagnetic Modeling. in IEEE Antennas and Wireless Propagation Letters, 10, 1457-1460. https://doi.org/10.1109/LAWP.2011.2180354
Ilić MM, Savić SV, Ilić AZ, Notaros BM. Constant Speed Parametrization Mapping of Curved Boundary Surfaces in Higher-Order Moment-Method Electromagnetic Modeling. in IEEE Antennas and Wireless Propagation Letters. 2011;10:1457-1460. doi:10.1109/LAWP.2011.2180354 .
Ilić, Milan M., Savić, Slobodan V., Ilić, Anđelija Z., Notaros, Branislav M., "Constant Speed Parametrization Mapping of Curved Boundary Surfaces in Higher-Order Moment-Method Electromagnetic Modeling" in IEEE Antennas and Wireless Propagation Letters, 10 (2011):1457-1460, https://doi.org/10.1109/LAWP.2011.2180354 . .