The IsoFilterTM Technique: A Method of Isolating the Pattern of an Individual Radiator from Data Measured in a Contaminated Environment

Author: Doren W. Hess
Publication: IEEE Antennas and Propagation Magazine (Volume: 52 , Issue: 1 , Feb. 2010)
Copyright Owner: IEEE

This paper describes a novel method, termed the IsofilterTM Technique, of isolating in the measured data 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 NFFF transform on an oversampled 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 end result is to yield an approximate pattern of the individual radiator largely uncontaminated by the other competing sources of radiation. I.

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