Observation of Diffraction from Absorber Array and Field-Probe Using Long Vertical Objects

EasyChair Preprint 8083

Abstract

A compact range lined with rows of absorbers on all sides would offer a unique opportunity for the curious mind to study its diffraction effect even under very dim illumination [1]. An extended long object usually gives rise to a bright reflection (glint) when viewed near its surface normal. To take advantage of this phenomenon, a discrete Fourier transform (DFT) on RCS measurements would yield a spectrum of incident wave distribution along that object [2, 3]. Some interesting physics are discussed.

--- References --- [1]. P. S. P. Wei, “Scattering of the residual field above and beyond the quiet zone of a compact range,” Proc. 35th AMTA, Columbus, OH (2013). [2]. P. S. P. Wei, “Measurements on long and rigid objects for radar field probes" Proc. 34th AMTA, pp. 195-200 (2012). [3]. P. S. P. Wei, “Measurements on extended objects for radar field probes," Proc. 41st AMTA, pp. 199-204 (2019); Also presented at ICECOM-2019 (23rd International Conf. on Applied Electromagnetics & Communications), paper s_16_3, Dubrovnik, Croatia, Sept. 30, 2019.

Keyphrases: Diffraction, RCS measurements, absorber arrays, compact range, field probes, long objects

@booklet{EasyChair:8083,
  author    = {Pax Wei},
  title     = {Observation of Diffraction from Absorber Array and Field-Probe Using Long Vertical Objects},
  howpublished = {EasyChair Preprint 8083},
  year      = {EasyChair, 2022}}