About: A Method for the Evaluation of Radiation Q Based on Modal Approach

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=6236027&contentType=Journals+%26+Magazines&searchField%3DSearch_All%26queryText%3DA+Method+fot+the+Evaluation+of+Radiation+Q+Based+on+Modal+Approach
Description	A new formula for the evaluation of the modal radiation Q factor is derived. The total Q of selected structures is to be calculated from the set of eigenmodes with associated eigen-energies and eigen-powers. Thanks to the analytical expression of these quantities, the procedure is highly accurate, respecting arbitrary current densities flowing along the radiating device. The electric field integral equation, Delaunay triangulation, method of moments, Rao-Wilton-Glisson basis function and the theory of characteristic modes constitute the underlying theoretical background. In terms of the modal radiation Q, all necessary relations are presented and the essential points of implementation are discussed. Calculation of the modal energies and Q factors enable us to study the effect of the radiating shape separately to the feeding. This approach can be very helpful in antenna design. A few examples are given, including a thin-strip dipole, two coupled dipoles a bowtie antenna and an electrically small meander folded dipole. Results are compared with prior estimates and some observations are discussed. Good agreement is observed for different methods. A new formula for the evaluation of the modal radiation Q factor is derived. The total Q of selected structures is to be calculated from the set of eigenmodes with associated eigen-energies and eigen-powers. Thanks to the analytical expression of these quantities, the procedure is highly accurate, respecting arbitrary current densities flowing along the radiating device. The electric field integral equation, Delaunay triangulation, method of moments, Rao-Wilton-Glisson basis function and the theory of characteristic modes constitute the underlying theoretical background. In terms of the modal radiation Q, all necessary relations are presented and the essential points of implementation are discussed. Calculation of the modal energies and Q factors enable us to study the effect of the radiating shape separately to the feeding. This approach can be very helpful in antenna design. A few examples are given, including a thin-strip dipole, two coupled dipoles a bowtie antenna and an electrically small meander folded dipole. Results are compared with prior estimates and some observations are discussed. Good agreement is observed for different methods. (en)
Title	A Method for the Evaluation of Radiation Q Based on Modal Approach A Method for the Evaluation of Radiation Q Based on Modal Approach (en)
skos:prefLabel	A Method for the Evaluation of Radiation Q Based on Modal Approach A Method for the Evaluation of Radiation Q Based on Modal Approach (en)
skos:notation	RIV/68407700:21230/12:00195636!RIV13-MSM-21230___
http://linked.open...avai/riv/aktivita	S
http://linked.open...avai/riv/aktivity	S
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Eichler, Jan Čapek, Miloslav Hazdra, Pavel
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	120299
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/12:00195636
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Antenna theory; Q factor; Eigenvalues and eigenfunctions; Electromagnetic theory (en)
http://linked.open.../riv/klicoveSlovo	Antenna theory Eigenvalues and eigenfunctions Electromagnetic theory Q factor
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[7F46AE0D51C1]
http://linked.open...i/riv/nazevZdroje	IEEE Transactions on Antennas and Propagation
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	60
http://linked.open...iv/tvurceVysledku	Eichler, Jan Hazdra, Pavel Čapek, Miloslav
http://linked.open...ain/vavai/riv/wos	000309742400011
issn	0018-926X
number of pages	12 (xsd:int)
http://bibframe.org/vocab/doi	10.1109/TAP.2012.2207329
http://localhost/t...ganizacniJednotka	21230

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