Original scientific paper
Single and Multi Element Printed Minkowski Monopole Antennas for Portable Terminal Devices
George F. Tsachtsiris
Manos P. Karaboikis
Constantine F. Soras
Vassilios T. Makios
Abstract
In this paper a printed fractal Minkowski monopole is presented for use in wireless terminal devices utilizing single and multi element antenna systems. In the case of a single element system the effect of the antenna's placement with respect to the ground plane is examined and a method to fine tune the system in its worst case situation is proposed. The influence of the ground plane dimensions on the system's impedance and radiation characteristics is also investigated and general conclusions are drawn. Subsequently, a four element antenna system for diversity applications is investigated. The diversity performance is evaluated by means of the envelope correlation coefficient, the mean effective gain and the effective diversity gain. The impact of the mutual coupling on the system's performance is also addressed.
Keywords
antenna diversity; diversity gain; fractal antenna; ground plane effect; Minkowski; monopole antenna
Hrčak ID:
6798
URI
Publication date:
18.11.2004.
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