Klemm, M.Fumeaux, C.Baumann, D.Craddock, I.2012-05-042012-05-042011Proceedings of the 2011 IEEE International Symposium on Antennas and Propogation, July 3-8, 2011, Spokane, Washington, USA: pp.710-71397814244956101522-3965http://hdl.handle.net/2440/70682In this paper we discuss challenges related with time-domain simulations of a complete microwave radar imaging system for breast cancer detection. Two different numerical methods are considered to address this demanding electromagnetic problem featuring 31 ultra-wideband antennas. The first method is the Finite Integration Technique (FIT) applied in a regular grid and implemented in a commercial solver, whereas the second method is an in-house developed Finite-Volume Time-Domain (FVTD) code applied in a tetrahedral mesh. Our work focuses on the fundamental differences between the two approaches for the comprehensive full-wave modeling of the considered problem. The emphasis of the comparison is placed on the computational cost, which reveals the strengths and limitations of both methods for the problem considered.enCopyright © 2011 by The Institute of Electrical and Electronics Engineers, Inc. All rights reserved.Microwave imagingultra-wideband antennasantenna arraycomputational electromagneticsConference paper002011503910.1109/APS.2011.59968110002972985001842-s2.0-8005501971326651Fumeaux, C. [0000-0001-6831-7213]