Spherical Modal Filtering of Antenna Patterns Augmented by Translation of Coordinate Origin

Author: Doren W. Hess
Publication: 2011 IEEE International Symposium on Antennas and Propagation (AP-S/URSI)
Copyright Owner: IEEE

This paper describes a novel method termed the IsofilterTM Technique, of isolating the radiation pattern of an individual radiator from among a composite set of radiators that form a complex radiation distribution. This technique proceeds via three successive steps: A spherical transform on an over-sampled data set, followed by a change of coordinate system followed in turn by filtering in the domain of the spherical modes to isolate a radiating source. The result is an approximate pattern of the individual radiator largely uncontaminated by the other competing sources of radiation.

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