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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2503.13029 |
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| _version_ | 1866917959106035712 |
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| author | Bekasiewicz, Adrian Dzwonkowski, Mariusz Dhaene, Tom Couckuyt, Ivo |
| author_facet | Bekasiewicz, Adrian Dzwonkowski, Mariusz Dhaene, Tom Couckuyt, Ivo |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_13029 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Specification-Oriented Automatic Design of Topologically Agnostic Antenna Structure Bekasiewicz, Adrian Dzwonkowski, Mariusz Dhaene, Tom Couckuyt, Ivo Numerical Analysis Signal Processing 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. |
| title | Specification-Oriented Automatic Design of Topologically Agnostic Antenna Structure |
| topic | Numerical Analysis Signal Processing |
| url | https://arxiv.org/abs/2503.13029 |