A New efficient and stable 3D Conformal FDTD Ruiz Cabello, Miguel Díaz Angulo, Luis Manuel Alvarez Gonzalez, Jesús Rubio Bretones, Amelia Consuelo Gutierrez Gutierrez, Guadalupe González García, Salvador Conformal techniques Finite-difference time domain Radar cross-section A novel conformal technique for the FDTD method, here referred to as Conformal Relaxed Dey-Mittra method, is proposed and assessed in this letter. This technique helps avoid local time-step restrictions caused by irregular cells, thereby im- proving the global stability criterion of the original Dey-Mittra method. The approach retains a second-order spatial convergence. A numerical experiment based on the NASA almond has been chosen to show the improvement in accuracy and computational performance of the proposed method. 2018-04-13T08:52:25Z 2018-04-13T08:52:25Z 2016 journal article Ruiz Cabello, M; et. al. A New efficient and stable 3D Conformal FDTD. IEEE Microwave and Wireless Component Letters Volume: 26, Issue: 8, pp. 553-555, Aug. 2016 [http://hdl.handle.net/10481/50197] http://hdl.handle.net/10481/50197 10.1109/LMWC.2016.2588579 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ open access Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License IEEE