Beamforming in sparse, random, 3D array antennas with fluctuating element locations

Conference paper (2015)

Authors

Mark J Bentum University of Twente
I.E. Lager Electrical Engineering Education - EEMCS
S. Bosma Tera-Hertz Sensing - EEMCS
W.P. Bruinsma Tera-Hertz Sensing - EEMCS
R.P. Hes Computer Engineering - EEMCS
Research Group
Electrical Engineering Education (EEMCS) (TU Delft)
Copyright: © 2015 Mark J Bentum, I.E. Lager, S. Bosma, W.P. Bruinsma, R.P. Hes
Array signal processing Arrays Three-dimensional displays Gratings Antenna radiation patterns Planar arrays
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Published Date

2015

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Electrical Engineering Education

Abstract

The impact of the fluctuations in the locations of elementary radiators on the radiation properties of three-dimensional (3D) array antennas is studied. The principal radiation features (sidelobes level, beam squint) are examined based on illustrative examples. Some atypical behaviours, that are specific to 3D arrays, are highlighted. The effect of fluctuations is demonstrated via examples concerning non-uniform arrays. This study is important for designing beamforming strategies in case of constellations of (nano) satellites for space-bound remote sensing of the Earth and the Universe.