Optimization of Embedded Element Patterns of Reactively Loaded Antenna Arrays

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F25%3A00384145" target="_blank" >RIV/68407700:21230/25:00384145 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/TAP.2025.3579156" target="_blank" >https://doi.org/10.1109/TAP.2025.3579156</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TAP.2025.3579156" target="_blank" >10.1109/TAP.2025.3579156</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimization of Embedded Element Patterns of Reactively Loaded Antenna Arrays

Popis výsledku v původním jazyce

This paper introduces a framework for synthesizing reactively loaded antennas and antenna arrays. The framework comprises two main components: computing the fundamental bound using the semi-definite relaxation and finding a realizable solution via optimization on a Riemannian manifold. The embedded element patterns are subject to the optimization with two distinct goals under study: focusing the radiation in a single direction or synthesizing patterns with desired shapes. The reactive terminations of passive antenna elements serve as optimization variables. We demonstrate the framework using a connected bowtie-slot antenna and antenna array with both beam-focusing and beam-shaping targets. The tests show that the optimization on the Riemannian manifold yields superior results compared to existing methods, such as the genetic algorithm. This is particularly evident in the most complex and extensive problem, which requires the synthesis of shaped embedded element patterns for a sparse reactively loaded antenna array with a limited field of view.

Název v anglickém jazyce

Optimization of Embedded Element Patterns of Reactively Loaded Antenna Arrays

Popis výsledku anglicky

This paper introduces a framework for synthesizing reactively loaded antennas and antenna arrays. The framework comprises two main components: computing the fundamental bound using the semi-definite relaxation and finding a realizable solution via optimization on a Riemannian manifold. The embedded element patterns are subject to the optimization with two distinct goals under study: focusing the radiation in a single direction or synthesizing patterns with desired shapes. The reactive terminations of passive antenna elements serve as optimization variables. We demonstrate the framework using a connected bowtie-slot antenna and antenna array with both beam-focusing and beam-shaping targets. The tests show that the optimization on the Riemannian manifold yields superior results compared to existing methods, such as the genetic algorithm. This is particularly evident in the most complex and extensive problem, which requires the synthesis of shaped embedded element patterns for a sparse reactively loaded antenna array with a limited field of view.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/GM21-19025M" target="_blank" >GM21-19025M: Optimální návrh v elektromagnetismu založený na lokální perturbaci přesných modelů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Transactions on Antennas and Propagation

ISSN

0018-926X

e-ISSN

1558-2221

Svazek periodika

73

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

7655-7669

Kód UT WoS článku

001594984100010

EID výsledku v databázi Scopus

2-s2.0-105008447220