The T matrix for acoustic and electromagnetic scattering by circular disks
G Kristensson, PC Waterman - The Journal of the Acoustical Society of …, 1982 - pubs.aip.org
The T matrix for scattering of waves by a circular disk is derived. Both the scalar (Dirichlet
and Neumann boundary conditions) and the vector (perfectly conducting disk) cases are
considered and the use of alternative choices for surface field functions is discussed in
detail, and it is found that either type of the surface field representation is equally good for
the disk case. Analytic expression of the farfield amplitude and total cross section is given in
the low‐frequency limit for both plane‐wave incidence or a point source. Numerical results …
and Neumann boundary conditions) and the vector (perfectly conducting disk) cases are
considered and the use of alternative choices for surface field functions is discussed in
detail, and it is found that either type of the surface field representation is equally good for
the disk case. Analytic expression of the farfield amplitude and total cross section is given in
the low‐frequency limit for both plane‐wave incidence or a point source. Numerical results …
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