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Antenna research directions for 6G: A brief overview through sampling literature

Author: Olwal, TO ; Chuku, PN ; Lysko, Albert A Date: Mar 2021 Antennas are a critical component in any wireless link. The significance of their role continues to grow, together with the rise of machine-to-machine (M2M) communications and telecommunications starting to move from the fourth generation ... Read more
Antenna research directions for 6G: A brief overview through sampling literature

Author: Olwal, TO ; Chuku, PN ; Lysko, Albert A Date: Mar 2021 Antennas are a critical component in any wireless link. The significance of their role continues to grow, together with the rise of machine-to-machine (M2M) communications and telecommunications starting to move from the fourth generation ... Read more
Components of electrically small loop antennae: 1

Author: Bowles, BA ; Austin, BA ; Attwell, CWP Date: Nov 1978 The paper outlines the fundamentals of underground radio transmission with particular emphasis on loop antennas Read more
Components of electrically small loop antennae: 2

Author: Bowles, BA ; Austin, BA ; Attwell, CWP Date: Dec 1978 The paper describes the properties of matching networks employed which determine the most desirable network Read more
Element sharing in interleaved antenna arrays

Author: Du Plessis, WP ; Kitching, C ; Bin Ghannam, A Date: Mar 2012 The effect of allowing shared elements in interleaved thinned arrays is investigated. The sidelobe level (SLL) as a function of the number of shared elements mirrors the SLL of thinned arrays as a function of filling factor because the number ... Read more
Insights into factors contributing to the observability of a submarine at periscope depth by modern radar, Part 2: EM simulation of mast RCS in a realistic sea surface environment

Author: Smit, JC ; Cilliers, Jacques E Date: Sep 2012 Recently, a set of high resolution radar measurements were undertaken in South Africa to gain insight into factors influencing the detectability of submarine masts deployed under realistic operational conditions. The measurements, processing ... Read more
The modelling and design of radio tomography antennas

Author: Vogt, DR Date: Sep 2000 In this thesis, Radio Tomography is the name of a geophysical technique for imaging the attenuation of high frequency continuous wave radio waves in the plane between two boreholes in the earth. One of the central problems of radio tomography ... Read more
Performance modelling of a cost effective COTS UHF Log-periodic antenna

Author: Blaauw, Ciara ; Potgieter, Monique ; Cilliers, Jacques E Date: Apr 2020 Commercial off the shelf antennas make it possible to perform rapid initial system tests and proof of concepts experiments. This paper reports on the antenna performance of a cost effective commercial off the shelf printed Log-periodic antenna ... Read more
Quantifying wave propagation over a corrugated metal using 5 dBi antennas

Author: Nkosi, MC ; Lysko, Albert A Date: Sep 2015 Understanding radio wave propagation is important for the design and implementation of reliable wireless communication systems. This paper describes transmission coefficient quantification. Measurements were done by using two antennas placed ... Read more
Reducing condition number by appropriate current decomposition on a multiplet of several wires

Author: Lysko, Albert A Date: Jul 2011 This paper discusses a numerical investigation in connection with the dependency of the condition number of the impedance matrix on the decomposition of current on a junction with several attached wires (multiplet). It is shown that the ... Read more
Small loop antenna analysis: Computer program

Author: Bowles, BA ; Attwell, CWP Date: Nov 1979 The authors present a computer program which analyses an electrically small loop antenna having a capacitive matching network Read more
Towards an ultra-low-power electronically controllable array antenna for WSN

Author: Lysko, Albert A Date: Sep 2012 This paper discusses steps towards a low-power beam-switching array antenna suitable for wireless sensor network (WSN) applications. Such an antenna will help to improve the signal to noise ratio (SNR), and thus throughput, latency and other ... Read more
Using piecewise sinusoidal basis functions to blanket multiple wire segments

Author: Lysko, Albert A Date: Jun 2009 This paper discusses application of the piecewise sinusoidal (PWS) basis function (BF) over a chain of several wire segments, for example as a multiple domain basis function. The usage of PWS BF is compared to results based on the piecewise ... Read more
VillageLink: Wide-Area Wireless Coverage

Author: Pejovic, V ; Johnson, DL ; Zheleva, M ; Belding, EM ; Lysko, Albert A Date: Jan 2014 White spaces promise to revolutionize the way wireless connectivity is delivered over wide areas. However, large-scale white space networks face the problem of allocating channels to multiple contending users in the wide white space band. To ... Read more
Work in television white spaces (TVWS) and dynamic spectrum and a bit on antennas (conference presentation)

Author: Lysko, Albert A Date: Jul 2016 There is a need for work around improving frequency spectrum utilization efficiency to support the South African government targets of 100% broadband by 2020, with tough specifications stated by the National Broadband Policy “South Africa ... Read more

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