Expedited Gradient-Based Design Closure of Antennas Using Variable-Resolution Simulations and Sparse Sensitivity Updates - Publication - MOST Wiedzy

Search

Expedited Gradient-Based Design Closure of Antennas Using Variable-Resolution Simulations and Sparse Sensitivity Updates

Abstract

Numerical optimization has been playing an increasingly important role in the design of contemporary antenna systems. Due to the shortage of design-ready theoretical models, optimization is mainly based on electromagnetic (EM) analysis, which tends to be costly. Numerous techniques have evolved to abate this cost, including surrogate-assisted frameworks for global optimization, or sparse sensitivity updates for speeding up local search. In the latter, CPU-heavy updates of the system response sensitivity through finite differentiation are suppressed based on, e.g., the magnitude of design variability during the optimization run. Another approach is to incorporate variable-resolution simulations. Recently, a technique exploiting a continuous spectrum of admissible model fidelity levels has been reported, thereby allowing for a considerable reduction of the computational expenditures. Seeking further savings, this work introduces an accelerated gradient-based algorithm with sparse sensitivity updates and variable-resolution EM simulations. Our technique is validated using four broadband antennas, and demonstrated to offer substantial (around eighty percent) savings over the benchmark while maintaining acceptable design quality.

Citations

  • 0

    CrossRef

  • 0

    Web of Science

  • 0

    Scopus

Cite as

Full text

full text is not available in portal

Keywords

Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION pages 1 - 6,
ISSN: 0018-926X
Language:
English
Publication year:
2022
Bibliographic description:
Pietrenko-Dąbrowska A., Kozieł S.: Expedited Gradient-Based Design Closure of Antennas Using Variable-Resolution Simulations and Sparse Sensitivity Updates// IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION -, (2021), s.1-6
DOI:
Digital Object Identifier (open in new tab) 10.1109/tap.2021.3138487
Verified by:
Gdańsk University of Technology

seen 0 times

Recommended for you

Meta Tags