Search
Abstract
The continuing trend for miniaturization of electronic devices necessitates size reduction of the comprising components and circuitry. Specifically, integrated circuit-antenna modules therein require compact radiators in applications such as 5G communications, implantable and on-body devices, or internet of things (IoT). The conflict between the demands for compact size and elec-trical and field performance can be mitigated by means of constrained numerical optimization. Evaluation of performance-related constraints requires expensive electromagnetic (EM) analysis of the system at hand, therefore their explicit handling is inconvenient. A workaround is the penalty function approach where the primary objective (typically, antenna size) is complement-ed by additional terms quantifying possible constraint violations. The penalty coefficients that determine contributions of these terms, are normally adjusted manually, which hinders precise control over antenna performance figures and often leads to inferior results in terms of achieved miniaturization rates. This paper proposes a novel algorithm featuring an automated adjust-ment of the penalty factors throughout the optimization process. Our methodology is validated using three broadband antenna structures. The obtained results demonstrate that the presented adaptive adjustment permits a precise control over the constraint violations while leading to better miniaturization rates as compared to manual penalty term setup.
Citations
-
3
CrossRef
-
0
Web of Science
-
3
Scopus
Authors (2)
-
Marzieh Mahrokh
- Reykjavik University
Cite as
Full text
- Publication version
- Accepted or Published Version
- License
-
open in new tab
Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
Electronics
no. 10,
ISSN: 2079-9292 - Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Mahrokh M., Kozieł S.: Optimization-based antenna miniaturization using adaptively-adjusted penalty factors// Electronics -Vol. 10,iss. 15 (2021), s.1-16
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/electronics10151751
- Verified by:
- Gdańsk University of Technology
seen 136 times