Gürel, LeventOğuz, UğurArıkan, Orhan2016-02-082016-02-0819970272-4693http://hdl.handle.net/11693/27705Date of Conference: 13-18 July 1997Conference Name: Antennas and Propagation Society International Symposium, IEEE 1997Different techniques are developed to implement plane-wave excitation on the finite-difference time-domain (FDTD) method, such as the initial-condition, the hard-source, and the connecting-condition techniques, for the total-field/scattered field (TF/SF) formulation. In the TF/SF formulation, the incident field is computed and fed to the 3D FDTD grid on the boundary separating the total-field and the scattered-field regions. Since the incedent field is a known quantity, a closed-form expression can be evaluated on every point of this boundary. A more efficient way of computing the incedent field is by using an incedent-field array (IFA), which is a 1D FDTD grid set-up to numerically propagate the incedent field into the 3D FDTD.EnglishBoundary conditionsElectric fieldsElectromagnetic wave propagationFinite difference methodInterpolationTime domain analysisAbsorbing boundary conditions (ABC)Finite difference time domain (FDTD) techniqueIncedent field array (IFA)Total field/scattered field (TF/SF) formulationElectromagnetic wave scatteringConference Paper10.1109/APS.1997.625397