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Type: Journal article
Title: Finite-volume time-domain analysis of a cavity-backed archimedean spiral antenna
Author: Fumeaux, C.
Baumann, D.
Vahldieck, R.
Citation: IEEE Transactions on Antennas and Propagation, 2006; 54(3):844-851
Publisher: IEEE-Inst Electrical Electronics Engineers Inc
Issue Date: 2006
ISSN: 0018-926X
Statement of
Christophe Fumeaux, Dirk Baumann and Rüdiger Vahldieck
Abstract: This paper presents a comprehensive analysis of a broadband (2–18 GHz) cavity-backed Archimedean spiral antenna. The simulation of the device is performed using the finite-volume time-domain method. The high geometrical flexibility of this method permits a detailed modeling of the antenna including the thin substrate, the feeding balun, and the cavity loaded with a honeycomb absorber. The simulated far-field radiation patterns and the return loss are compared to measurements, showing an excellent agreement over the whole frequency band. The radiation mechanism of the spiral is visualized by observing the current distribution on the spiral arms for both pulsed and harmonic excitation modes.
Keywords: Current distribution; spiral antennas; time domainanalysis
RMID: 0020092580
DOI: 10.1109/TAP.2006.869935
Appears in Collections:Electrical and Electronic Engineering publications

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