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Sampling in plane-polar coordinates

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2 Author(s)

A number of details are clarified regarding the recently derived sampling-reconstruction theorem for near-field scanning in plane-polar coordinates. The rigorous sampling-reconstruction theorem is applied to the near-field measurement of a circular aperture test antenna offset from the plane-polar axis of rotation, so that a large number of angular modes are necessary to represent the fields of the test antenna. An algorithm is described for computing accurately and rapidly the required zeros of Bessel functions of arbitrary integer order.

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Antennas and Propagation, IEEE Transactions on  (Volume:44 ,  Issue: 5 )