Principle for the Realization of Dual-Orthogonal Linearly Polarized Antennas for UWB Technique. (29th September 2011)

• Record Type: Journal Article
• Authors: Adamiuk, Grzegorz; Pauli, Mario; Zwick, Thomas
• Other Names: Shen Zhongxiang Q. Academic Editor.
• Is Part Of: International journal of antennas and propagation. Volume 2011(2011)
• Publication Date: 2011-09-29
• Subjects: Electronic apparatus and appliances -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Antennes (Électronique); Ondes radioélectriques -- Propagation; Antennas (Electronics); Electronic apparatus and appliances; Radio wave propagation; Electronic journals; Periodicals; 621.382405
• DOI: 10.1155/2011/231893
• Languages: English
• ISSNs: 1687-5869

Abstract

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.