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Capacity, coverage and power profile performance evaluation of a novel rural broadband services exploiting TVWS from high altitude platform

Author: Hussien, HM ; Katzis, K ; Mfupe, Luzango P ; Bekele, ET Date: Jun 2022 The coverage and capacity of exploiting TV White Spaces (TVWS) from High Altitude Platforms (HAPs) with multiple antenna payloads using uniform rectangular phased array (URA) antennas are explored in this article. A scenario is suggested in ... 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
Incorporating antenna beamswitching technique into drivers for IEEE802.11 WLAN devices

Author: Mofolo, M ; Lysko, Albert A Date: 23 Nov 2015 The use of smart antennas in wireless networks requires real-time synchronization of the beamforming and the transmission/receive processes for the host devices that are equipped with such antennas. This paper presents an approach for integrating ... Read more
Influence of errors in the dimensions of a switched parasitic array on gain and impedance match

Author: Mofolo, MRO ; Lysko, Albert A ; Clarke, WA Date: Sep 2012 The dimensions of an antenna system defines its performance. This implies proper calibration and fabrication process are vital. Thus, there is a need to investigate the influence of the variations in the dimensions of the antenna on its ... Read more
Super-Orthogonal space-time trellis codes for virtual antenna arrays

Author: Sokoya, OA ; Xu, H ; Takawira, F Date: Sep 2006 This paper investigates the performance of super-orthogonal space time trellis codes when Virtual Antenna Arrays (VAA) is employed. The concept of virtual antenna arrays was developed to emulate Multiple-Input Multiple-Output (MIMO) schemes ... Read more

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Browsing by Subject "Antenna arrays"

Browsing by Subject "Antenna arrays"

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