Efficient near-field to far-field transformation from plane-polar samples

The problem of rapid far-field computation from near-field samples acquired on a plane-polar geometry is addressed in this paper. A fast processing algorithm is developed which uses the fast Fourier transform and the related shift theorem, by exploiting the convolution property of the radiation integral giving the antenna far-field pattern. Numerical and experimental examples are discussed to prove the effectiveness of the proposed procedure. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 2433–2436, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21964