Print Email Facebook Twitter Sparse Array Antenna Concepts for Spaceborne SAR Applications Title Sparse Array Antenna Concepts for Spaceborne SAR Applications: An Assessment of Synthesis Methods for Very Large Active Electronically Scanned Antenna Arrays Author Jacobs, Bas (TU Delft Electrical Engineering, Mathematics and Computer Science; TU Delft Microwave Sensing, Signals & Systems) Contributor Yarovoy, Alexander (mentor) Monni, Stefania (graduation committee) Bekers, Dave (graduation committee) Degree granting institution Delft University of Technology Programme Electrical Engineering | Microelectronics Date 2019-10-17 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. Subject Spaceborne SARKa-bandAntenna SynthesisPolyominosDensity TaperingVariable Length Linear Arrays To reference this document use: http://resolver.tudelft.nl/uuid:6c2f2f0e-c0d4-4559-98b6-49dcb53dce57 Part of collection Student theses Document type master thesis Rights © 2019 Bas Jacobs Files PDF S_Jacobs_Sparse_Array_Ant ... Thesis.pdf 4.38 MB Close viewer /islandora/object/uuid:6c2f2f0e-c0d4-4559-98b6-49dcb53dce57/datastream/OBJ/view