Phased-Array Antenna Pattern Optimization with Evolution Strategies

In this paper we address the problem of finding Phase-Only tapers configuration for a Phased-Array antenna that would be relevant for airborne radar applications. Following a constrained optimization approach, we apply the state-of-the-art blackbox optimization algorithm CMA-ES and build a novel constraint-aware fitness function based on rankings. To the best of our knowledge, this technique has never been used in constrained continuous optimization and proves to be robust as it provides satisfying results in a diversity of considered cases. Our approach is also convenient as it requires very few parameter tuning. We discuss the obtained results and how they could be extended.