Abstract
In this communication, we propose a frequency-independent approach, the numerical steepest descent path (NSDP) method, for computing the physical optics scattered electromagnetic field on the quadratic hyperbolic surface. Due to the highly oscillatory nature of the physical optics integral, the proposed method relies on deforming the integration path of the integral into the NSDP on the complex plane. Numerical results for the PO-based EM fields from the hyperbolic surface illustrate that the proposed NSDP method is frequency independent in computational cost and error controllable in accuracy.
Recommended Citation
Y. M. Wu et al., "A Frequency-Independent Method For Computing The Physical Optics-Based Electromagnetic Fields Scattered From A Hyperbolic Surface," IEEE Transactions on Antennas and Propagation, vol. 64, no. 4, pp. 1546 - 1552, article no. 7399687, Institute of Electrical and Electronics Engineers, Apr 2016.
The definitive version is available at https://doi.org/10.1109/TAP.2016.2526065
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Critical-point contributions; hyperbolic surface; numerical steepest descent path (NSDP); physical optics
International Standard Serial Number (ISSN)
0018-926X
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Apr 2016
Comments
National Science Foundation, Grant 14ZR1402400