Sparse Array Antenna Concepts for Spaceborne SAR Applications

An Assessment of Synthesis Methods for Very Large Active Electronically Scanned Antenna Arrays

Master thesis (2019)

Authors

S. Jacobs Electrical Engineering, Mathematics and Computer Science

Contributors

Alexander Yarovoy Microwave Sensing, Signals & Systems - EEMCS (supervisor 1)
Stefania Monni TNO (supervisor 2)
Dave Bekers TNO (supervisor 2)
Faculty
Electrical Engineering, Mathematics and Computer Science
Copyright: © 2019 Bas Jacobs
Spaceborne SAR Ka-band Antenna Synthesis Polyominos Density Tapering Variable Length Linear Arrays
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Published Date

17-10-2019

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Abstract

Antenna design for Ka-band SAR systems used in earth observation missions is demanding for two reasons. A narrow beamshape results in a large aperture, and the frequency band dictates a short spacing between neighboring radiating elements. In our case, this leads to a requirement of more than a million radiating elements. In this thesis it is assessed how such a challenge can be solved, yielding a solution that is compliant with the specifications and industrially feasible. In particular, it is recognized that the distribution of radiating elements is more important than the placement of individual elements, and the synthesis and analysis methods explored in this work build on this principle.