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

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

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  • Design of a RFID system for real-time tracking of laboratory animals 
    Ramudzuli, Zwivhuya Romeo; Malekian, Reza; Ye, Ning (Springer, 2017-08)
    In this paper, a real-time RFID system capable of tracking laboratory animals for behavior analysis purposes was designed and implemented. Four passive RFID tags based on low frequency (LF) were designed and implemented ...
  • Spectrum occupancy investigation : measurements in South Africa 
    Barnes, Simon Daniel; Jansen van Vuuren, P.A.; Maharaj, Bodhaswar Tikanath Jugpershad (Elsevier, 2013)
    Regulatory bodies have predicted an impending shortage in commercial radio frequency spectrum in the near future. However, due to outdated regulatory practices, many of these bands are in fact inefficiently underutilised. ...
  • 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 ...