Minimization of Antenna Quality Factor

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F17%3A00312051" target="_blank" >RIV/68407700:21230/17:00312051 - isvavai.cz</a>

Výsledek na webu

<a href="http://ieeexplore.ieee.org/document/7953652/" target="_blank" >http://ieeexplore.ieee.org/document/7953652/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TAP.2017.2717478" target="_blank" >10.1109/TAP.2017.2717478</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Minimization of Antenna Quality Factor

Popis výsledku v původním jazyce

Optimal currents on arbitrarily shaped radiators with respect to the minimum quality factor are found using a simple and efficient procedure. The solution starts with a reformulation of the problem of minimizing quality factor Q as an alternative, so-called dual, problem. Taking advantage of modal decomposition and group theory, it is shown that the dual problem can easily be solved and always results in minimal quality factor Q. Moreover, the optimization procedure is generalized to minimize quality factor Q for embedded antennas, with respect to the arbitrarily weighted radiation patterns, or with prescribed magnitude of the electric and magnetic near-fields. The obtained numerical results are compatible with previous results based on composition of modal currents, convex optimization, and quasi-static approximations; however, using the methodology in this paper, the class of solvable problems is significantly extended.

Název v anglickém jazyce

Minimization of Antenna Quality Factor

Popis výsledku anglicky

Optimal currents on arbitrarily shaped radiators with respect to the minimum quality factor are found using a simple and efficient procedure. The solution starts with a reformulation of the problem of minimizing quality factor Q as an alternative, so-called dual, problem. Taking advantage of modal decomposition and group theory, it is shown that the dual problem can easily be solved and always results in minimal quality factor Q. Moreover, the optimization procedure is generalized to minimize quality factor Q for embedded antennas, with respect to the arbitrarily weighted radiation patterns, or with prescribed magnitude of the electric and magnetic near-fields. The obtained numerical results are compatible with previous results based on composition of modal currents, convex optimization, and quasi-static approximations; however, using the methodology in this paper, the class of solvable problems is significantly extended.

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/GJ15-10280Y" target="_blank" >GJ15-10280Y: Syntéza elektricky malých antén s využitím zdrojových veličin</a><br>

Návaznosti

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

Rok uplatnění

2017

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

65

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

4115-4123

Kód UT WoS článku

000407397600031

EID výsledku v databázi Scopus

2-s2.0-85021824067