TY - GEN
T1 - Fast analysis of scattering from inhomogeneous dielectric bodies of revolution embedded in layered media and application to to lens design
AU - Wang, Xiande
AU - Wu, Qi
AU - Werner, Douglas H.
PY - 2012/12/10
Y1 - 2012/12/10
N2 - The body-of-revolution, finite-difference time-domain (BOR-FDTD) method is presented for solving electromagnetic scattering from inhomogeneous dielectric BOR objects embedded in multilayered media. To efficiently truncate the infinite spatial domain for computations, a generalized unsplit perfectly matched layer (UPML) absorbing boundary condition technique in cylindrical coordinates is incorporated into the BOR-FDTD solver. The total-field scattered-field (TFSF) method is utilized to introduce the incident plane waves into the BOR-FDTD simulations. In the presence of the layered media, a 1-D auxiliary grid is created to generate a normal plane-wave injector by performing 1-D FDTD calculations along the direction of wave propagation with the help of a 1-D TFSF technique. The numerical results presented here demonstrate the accuracy and efficiency of the proposed method. Finally, the code is employed to investigate the influence of substrates on the characteristics of flat transformation optics (TO) BOR lenses.
AB - The body-of-revolution, finite-difference time-domain (BOR-FDTD) method is presented for solving electromagnetic scattering from inhomogeneous dielectric BOR objects embedded in multilayered media. To efficiently truncate the infinite spatial domain for computations, a generalized unsplit perfectly matched layer (UPML) absorbing boundary condition technique in cylindrical coordinates is incorporated into the BOR-FDTD solver. The total-field scattered-field (TFSF) method is utilized to introduce the incident plane waves into the BOR-FDTD simulations. In the presence of the layered media, a 1-D auxiliary grid is created to generate a normal plane-wave injector by performing 1-D FDTD calculations along the direction of wave propagation with the help of a 1-D TFSF technique. The numerical results presented here demonstrate the accuracy and efficiency of the proposed method. Finally, the code is employed to investigate the influence of substrates on the characteristics of flat transformation optics (TO) BOR lenses.
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U2 - 10.1109/APS.2012.6348746
DO - 10.1109/APS.2012.6348746
M3 - Conference contribution
AN - SCOPUS:84870537475
SN - 9781467304627
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
BT - 2012 IEEE International Symposiumon Antennas and Propagation, APSURSI 2012 - Proceedings
T2 - Joint 2012 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, APSURSI 2012
Y2 - 8 July 2012 through 14 July 2012
ER -