G
George A. Kyriacou
Researcher at Democritus University of Thrace
Publications - 143
Citations - 838
George A. Kyriacou is an academic researcher from Democritus University of Thrace. The author has contributed to research in topics: Finite element method & Microstrip antenna. The author has an hindex of 13, co-authored 140 publications receiving 735 citations.
Papers
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Development of an Adaptive and a Switched Beam Smart Antenna System for Wireless Communications
TL;DR: This study concentrates on the development of two separate Smart Antenna Systems for the 2.45 GHz ISM band, both of which incorporate the RF-beamforming method, increasing beam-steering accuracy, whereas introducing complexity and cost.
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A mode-matching technique for the study of circular and coaxial waveguide discontinuities based on closed-form coupling integrals
TL;DR: In this paper, a mode-matching scheme for the analysis of concentric circular and/or coaxial waveguide step discontinuities is proposed, which mainly concerns the multimode excitation and scattering at a circular-to-coaxial waveguided step junction.
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Design of True Time Delay Millimeter Wave Beamformers for 5G Multibeam Phased Arrays
Dimitrios I. Lialios,Nikolaos Ntetsikas,Konstantinos D. Paschaloudis,Constantinos L. Zekios,Stavros V. Georgakopoulos,George A. Kyriacou +5 more
TL;DR: Three different analog beamforming techniques for the frequency range of 27–33 GHz are presented and a novel compact multilayer Blass matrix is proposed, and a three-layer true-time-delay tree topology inspired by microwave photonics is presented.
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A Cost-Effective Wideband Switched Beam Antenna System for a Small Cell Base Station
Petros Bantavis,C. I. Kolitsidas,Tzihat Empliouk,Marc Le Roy,B. Lars G. Jonsson,George A. Kyriacou +5 more
TL;DR: The proposed system of the Butler matrix in conjunction with the constructed array can be utilized as a common RF front end in a wideband air interface for a small cell 5G application and beyond as it is capable to simultaneously cover all the commercial bands from 2 to 5 GHz.
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Measurements and predictions of electric and magnetic fields from power lines
TL;DR: In this paper, a model capable of predicting the magnetic field produced in both overhead and underground transmission and distribution power lines using experimental measurements is presented. But the model is based on a linear correlation between the current load of one of the two three phase circuits and the magnetic fields.