Browsing Electrical, Electronic and Computer Engineering by UP Author "Stander, Tinus"

Browsing Electrical, Electronic and Computer Engineering by UP Author "Stander, Tinus"

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  • Inline Ka-band transitional combline / evanescent-mode filter in conventional RF substrate using grounded vias 
    Stander, Tinus; IEEE Africon (2015 : Addis Ababa, Ethiopia) (Institute of Electrical and Electronics Engineers, 2015-09)
    The Ka-band is considered a viable band for future 5G backhaul links. Planar filters in this frequency range have low aspect ratios for substrates thicker than 10 mil, since the required 50 Ω line width becomes comparable ...
  • L-band tapered-ridge SIW-to-CPW transion 
    Smith, James Nathan; Stander, Tinus; International Conference on Actual Problems of Electron Devices Engineering (APEDE) (2014 : Saratov, Russia) (Institute of Electrical and Electronics Engineers, 2014)
    A tapered ridge transition between coplanar waveguide and substrate-integrated waveguide is presented. The taper is implemented through staircase metallization across 10 layers of conventional RF substrate with sidewall ...
  • 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 ...
  • An on-chip post-production tunable group delay equaliser 
    Osuch, Piotr Jan; Stander, Tinus; International Conference on Actual Problems of Electron Devices Engineering (APEDE) (2014 : Saratov, Russia) (Institute of Electrical and Electronics Engineers, 2014)
    A design method for distributed element on-chip post-production tunable group delay equalising networks is presented. It is shown that a number of adjustable Darlington C-sections can be used to equalise the group delay ...
  • Oscillation-based test applied to a wideband CCII 
    Petrashin, Pablo; Toledo, Luis; Lancioni, Walter; Osuch, Piotr Jan; Stander, Tinus (Hindawi Publishing, 2017)
    Oscillation-based testing (OBT) has been proven to be a simple, yet effective VLSI test for numerous circuit types. This paper investigates, for the first time, the application of OBT verification for second generation ...
  • Oscillation-based test in a CCII-based bandpass filter 
    Osuch, Piotr Jan; Stander, Tinus; Petrashin Pablo; Toledo, Luis; Lancioni, Walter (Institute of Electrical and Electronics Engineers, 2017-02)
    Oscillation based testing (OBT) has proven to be a simple yet effective VLSI test for numerous circuit types. In this work, OBT is applied to test Second-generation Current Conveyor (CCII) based filters for the first ...
  • Parametric circuit fault diagnosis through oscillation based testing in analogue circuits : statistical and deep learning approaches 
    Cloete, Jacob B.; Stander, Tinus; Wilke, Daniel Nicolas (Institute of Electrical and Electronics Engineers, 2022-02)
    Oscillation-based testing of analogue electronic filters removes the need for test signal synthesis. Parametric faults in the presence of normal component tolerance variation are challenging to detect and diagnose. This ...
  • Phase shifters with multiple independently controllable bands utilising frequency‐selective variable gain networks 
    Venter, J.J.P. (Johannes); Stander, Tinus (Wiley Open Access, 2021)
    A dual‐band vector‐sum phase shifter with independent phase control of the 2.4 and 5 GHz Wi‐Fi bands is presented. The network uses band‐limited variable gain amplification, with a broadband hybrid coupler at the input ...
  • Reflection mode mm-wave on-chip notch filters using coupled hairpin resonators 
    Gaskell, Anthony A.; Stander, Tinus (Institution of Engineering and Technology, 2016-03)
    An on-chip implementation of a W-band filter with dual notches at 82 GHz and 95 GHz is presented. Reflection mode filtering methods are implemented with dual hairpin resonator networks, using the inherent parasitic ...
  • A review of key development areas in low-cost packaging and integration of future E-band mm-wave transceivers 
    Stander, Tinus; IEEE Africon (2015 : Addis Ababa, Ethiopia) (Institute of Electrical and Electronics Engineers, 2015-09)
    With an ever increasing number of broadband applications in sub-Saharan Africa, mm-wave point-to-point networking has the potential to fill a niche in communications network architectures. Widespread adoption of this ...
  • SLA printed k-band waveguide components using Tollens reaction silver plating 
    Simonovic, Alexander; Rohwer, Egmont Richard; Stander, Tinus (Institute of Electrical and Electronics Engineers, 2023-02)
    Dielectric printed and plated waveguide components offer cost and weight benefits over metal-printed equivalents, with silver plating using Tollens reagents holding significant advantages over electroplating. This work ...
  • Transmission lines characteristic impedance versus Q-factor in CMOS technology 
    Venter, J.J.P. (Johannes); Franc, Anne-Laure; Stander, Tinus; Ferrari, Philippe (Cambridge University Press, 2022-05)
    This paper presents a systematic comparison of the relationship between transmission line characteristic impedance and Q-factor of CPW, slow-wave CPW, microstrip, and slow-wave microstrip in the same CMOS back-end-of-line ...
  • Ultra-compact capacitively loaded evanescent half-mode SIW filters for LTE applications 
    Stander, Tinus; Sinha, Saurabh (European Microwave Association, 2014-01-29)
    This paper presents a novel miniaturized substrate integrated waveguide filter by combining both half-mode resonators and capacitive loading on a conventional two-layer printed circuit board (PCB) process. The resulting ...
  • Waveguide power combiner with adjustable amplitude and phase response 
    Stander, Tinus; Sinha, Saurabh; International Conference on Radioelektronika (23rd : 2013 : Pardubice, Czech Republic) (Institute of Electrical and Electronics Engineers, 2013)
    Maximum gain from combining multiple high-power signals is achieved by equalising both the amplitude and phase of the combination. Achieving in-phase and equal amplitude power combining with amplifiers of unequal gain and ...
  • 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 ...