Specification-Oriented Automatic Design of Topologically Agnostic Antenna Structure
Abstract
Design of antennas for modern applications is a challenging task that combines cognition-driven development of topology intertwined with tuning of its parameters using rigorous numerical optimization. However, the process can be streamlined by neglecting the engineering insight in favor of automatic de-termination of structure geometry. In this work, a specification-oriented design of topologically agnostic antenna is considered. The radiator is developed using a bi-stage algorithm that involves min-max classification of randomly-generated topologies followed by local tuning of the promising designs using a trust-region optimization applied to a feature-based representation of the structure frequency response. The automatically generated antenna is characterized by -10 dB bandwidth of over 600 MHz w.r.t. the center frequency of 6.5 GHz and a dual-lobe radiation pattern. The obtained performance figures make the radiator of use for in-door positioning applications. The design method has been favorably compared against the frequency-based trust-region optimization.
Cite
@article{arxiv.2503.13029,
title = {Specification-Oriented Automatic Design of Topologically Agnostic Antenna Structure},
author = {Adrian Bekasiewicz and Mariusz Dzwonkowski and Tom Dhaene and Ivo Couckuyt},
journal= {arXiv preprint arXiv:2503.13029},
year = {2025}
}