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Type: Journal article
Title: Offset cross-slot-coupled dielectric resonator antenna for circular polarization
Author: Almpanis, G.
Fumeaux, C.
Vahldieck, R.
Citation: IEEE Microwave and Wireless Components Letters, 2006; 16(8):461-463
Publisher: IEEE
Issue Date: 2006
ISSN: 1531-1309
Statement of
Georgios Almpanis, Cristophe Fumeaux and Rüdiger Vahldieck
Abstract: A cross-slot-coupled cylindrical dielectric resonator antenna (DRA) is studied theoretically and experimentally. In previous papers, a cross-slot of unequal slot lengths was centered under the dielectric resonator (DR), resulting in circular polarized operation of the antenna. In the present study, the design is enhanced by setting the centers of the two slots at different positions and taking into consideration the partial independence of the slot modes from the DRA mode. Thus, circular polarization (CP) bandwidth of up to 4.7% is attained experimentally in the broadside direction. It is also shown that a largely asymmetrical structure results in a very high bandwidth, but with the tradeoff of distorted CP operation off-broadside.
Keywords: Circular polarization (CP)
dielectricresonator antenna (DRA)
slot coupling
DOI: 10.1109/LMWC.2006.879484
Appears in Collections:Aurora harvest
Electrical and Electronic Engineering publications

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