Planar steerable antennas play an important role in many military and civil applications. They typically suffer from an increased scanning loss as the beam is steered off the broadside. In practice, the scanning range is therefore usually limited to about 60 degrees.
The degradation in antenna realized gain as the scan angle increases is mainly caused by two factors: a lower directivity resulting from a reduced effective radiating aperture and a strong active impedance mismatch on the radiating elements.
The proposed research activity will benefit from a highly innovative development of theoretical and numerical modelling, design and optimization procedures for 3D-shaped structures with advanced functionalities.
The overall objective of this PhD project, available at the IETR (Institut d’Electronique et des Technologies du numéRique, UMR CNRS 6164, Rennes, France) and the TRT (Thales Research & Technology, Palaiseau, France) will be to demonstrate an innovative concept to compensate the gain loss when antennas operate at high steered angles (>60°) so that link budgets, data rates, and spectral efficiency in SATCOM on the move applications are maintained.
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