Browsing Research Articles (Electrical, Electronic and Computer Engineering) by Subject "Bandwidth"

Browsing Research Articles (Electrical, Electronic and Computer Engineering) by Subject "Bandwidth"

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  • Antenna with a reactive impedance substrate for mine rescue applications 
    Roestorff, Martin; Odendaal, J.W. (Johann Wilhelm); Joubert, Johan (Wiley, 2019-01)
    Two electrically small, reactive impedance surface (RIS) backed, antennas are presented that can be used by rescue workers to locate miners in emergency situations in underground mines. One antenna was designed for optimum ...
  • An investigation of bluetooth mergence with ultra wideband 
    Van der Linde, E.; Hancke, Gerhard P. (Elsevier, 2011-07)
    This article investigates the viability of a merger between Bluetooth and Ultra Wideband by developing and implementing a Bluetooth over Ultra Wideband data channeling system with an emphasis on the design of an economically ...
  • A millimeter-wave second-order all-pass delay network in BiCMOS 
    Osuch, Piotr Jan; Stander, Tinus (Institute of Electrical and Electronics Engineers, 2018-10)
    Analog signal processing (ASP) is a promising alternative to DSP techniques in millimeter-wave (mm-wave) technologies such as 5G, with the second-order all-pass networks a key building block in ASPs. We present an active ...
  • Towards a bandwidth efficient cognitive positioning system 
    Thomas, R.R.; Maharaj, Bodhaswar Tikanath Jugpershad (Institution of Engineering and Technology, 2012)
    Presented is an efficient bandwidth determination model for the cognitive positioning system by utilising multiple receive antennas. The performance evaluations of the proposed multiple receive antenna positioning system ...
  • Wi-Fi fine time measurement : is it a viable alternative to ultrawideband for ranging in industrial environments? 
    Elikplim, Nkrow Raphael; Silva, Bruno; Hancke, Gerhard P.; Abu-Mahfouz, Adnan; Shu, Lei (Institute of Electrical and Electronics Engineers, 2023-09)
    Time-based ranging approaches have long been used for indoor positioning due to their reliability and accuracy. Two-way ranging (TWR) with ultrawideband (UWB) has often been utilized for indoor positioning systems (IPSs) ...
  • X-band reflection-type phase shifters using coupled-line couplers on single-layer RF PCB 
    Venter, J.J.P. (Johannes); Stander, Tinus; Ferrari, Philippe (Institute of Electrical and Electronics Engineers, 2018-09)
    In this letter, an X-band reflection-type phase shifter is presented. It is based on a single-layer stub-loaded coupled-line coupler loaded by two-varactor tuning circuits. This choice of coupler significantly improves on ...