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- Title
Principle for the Realization of Dual-Orthogonal Linearly Polarized Antennas for UWB Technique.
- Authors
Adamiuk, Grzegorz; Pauli, Mario; Zwick, Thomas
- Abstract
A concept of an array configuration for an ultrawideband suppression of the cross-polarization is presented. The method is explained in detail, and a mathematical description of the principle is given. It is shown that the presented configuration is convenient for the development of very broad band, dual-orthogonal, linearly polarized antennas with high polarization purity. The investigated configuration shows a high decoupling of the orthogonal ports and is capable for antennas with a main beam direction perpendicular to the substrate surface, that is, for a planar design. The phase center of the antenna configuration remains fixed at one single point over the complete desired frequency range, allowing a minimum dispersion of the radiated signal. The influence of nonidealities in the feeding network on the polarization purity is investigated. The presented method introduces a superior possibility of an extension of typical UWB technique to fully polarized systems, which improves significantly performance in, for example, UWB-MIMO or UWB-Radar.
- Subjects
ANTENNAS (Electronics); ULTRA-wideband antennas; POLARIZATION (Electricity); ORTHOGONAL arrays; ELECTRONIC equipment; ULTRA-wideband devices
- Publication
International Journal of Antennas & Propagation, 2011, Vol 2011, p1
- ISSN
1687-5869
- Publication type
Article
- DOI
10.1155/2011/231893