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We study the fast algorithm for near field backscattering. Flat plate with arbitrary shape illuminated by electrical dipole at arbitrary position, the scattering field can be expressed by physical optics (PO) integral. When received at the same position, the PO integral can be reduced to contour integral on the boundary edge of the flat plate by Green theory. For the number of sample points falls...
An efficient parallel shooting and bouncing ray (SBR) method with divergence factor (DF) correction is proposed for fast computation of scattering from complex targets. A dynamic virtual aperture partitioning scheme, which can achieve excellent load balance, is designed according to the computational time at the previous angle. The loss of DF will degrade the simulation accuracy for the complex targets...
The smartphone designers prefer using metallic material to make smartphone case because it gives the consumer the impression of luxuriousness and toughness. It raises a hard task for antenna engineers that they can not arrang the antennas inside such metallic smartphone case. Although it is possible to use metallic case as a part of an antenna, there are still the requirements of mounting the antennas...
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