Browsing by UP Author "Stander, Tinus"

Browsing by UP Author "Stander, Tinus"

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  • Active enhanced tunable high-Q on-chip E-band resonator in commercial 130nm BiCMOS 
    Singh, Nishant; Stander, Tinus; IEEE International Microwave and RF Conference (2015 : Hyderabad, India) (Institute of Electrical and Electronics Engineers, 2015-12)
    A simulation study of a high-Q resonator in a commercial 130nm SiGe BiCMOS process for E-band frequencies is presented. The resonator is a planar quarter-wave microstrip resonator that uses a HBT based negative resistance ...
  • Additive manufacturing of interdigital filters with arbitrary line cross section 
    Venter, J.J.P. (Johannes); Maharaj, Riddhi; Stander, Tinus (Institute of Electrical and Electronics Engineers, 2020-04)
    This article investigates the novel use of additive manufacturing (AM) in the production of interdigital cavity filters. It is found that AM enables the production of interdigitated pins of complex cross-sectional geometry, ...
  • Broadband mm‐wave propagation characterization of planar groove gap waveguide 
    Oyedokun, Titus; Geschke, Riana H.; Stander, Tinus (Wiley, 2020-05)
    We present, experimental broadband propagation characterization of a planar groove gap waveguide (PGGWG) from 29 to 40 GHz. The transmission line Q‐factor is found to vary from 110 to 130 over the band, which is shown by ...
  • A capacitive SIW discontinuity for impedance matching 
    Smith, James Nathan; Stander, Tinus (Institute of Electrical and Electronics Engineers, 2019-11)
    We present a shunt capacitive substrate-integrated waveguide (SIW) discontinuity for the first time. The discontinuity is parametrically characterized in terms of its reactive impedance, and an equivalent circuit model is ...
  • A comparison of basic 94 GHz planar transmission line resonators in commercial BiCMOS back-end-of-line processes 
    Stander, Tinus; International Conference on Actual Problems of Electron Devices Engineering (APEDE), 2014: Saratov (Institute of Electrical and Electronics Engineers, 2014)
    A comparative simulation study of planar 94 GHz resonators in a typical BiCMOS BEOL stack-up is presented, with the effect of chip passivation included. It is shown that Q-factors of between 3 and 15 can be obtained, ...
  • A comparison of three-dimensional electromagnetic and RC parasitic extraction analysis of mm-wave on-chip passives in SiGe BiCMOS low-noise amplifiers 
    Sagouo Minko, Flavien; Stander, Tinus (Wiley, 2020-02)
    Layout parasitics significantly impact the performance of mm‐wave microelectronic circuits. These effects may be estimated by including foundry‐qualified pcell interconnect models in schematic with or without additional ...
  • Development, simulation and construction of cost-effective GTEM cells 
    Sinha, Saurabh; Stander, Tinus; International Conference on Radioelektronika, (23rd : 2013 : Pardubice, Czech Republic) (Institute of Electrical and Electronics Engineers, 2013-04)
    Gigahertz transverse electromagnetic (GTEM) cells are used extensively in industry for testing the impact of defined E-fields on devices sensitive to electromagnetic interference. Compared to anechoic chambers, GTEM ...
  • Direct synthesis procedure for sub-harmonic stub band-pass and band-stop filters 
    Stander, Tinus; Sinha, Saurabh (Wiley, 2013-05)
    A non-iterative synthesis procedure for sub-harmonic stub (SHS) bandpass and band-stop filters is presented. The method ensures better agreement between the synthesized filter response and the original prototype function ...
  • E-band active Q-enhanced pseudo-combline resonator in 130nm SiGe BiCMOS 
    Singh, Nishant; Stander, Tinus (Springer, 2018-10)
    We present an active Q-enhanced pseudo-combline resonator integrated in 130 nm SiGe BiCMOS. It is shown that the resonator Q0 can be enhanced, controllably, from 15 to 1578 at 78.8 GHz through application of a SiGe HBT-based ...
  • Effect of electron radiation on small-signal parameters of NMOS devices at mm-wave frequencies 
    Habeenzu, Brilliant; Meyer, Walter Ernst; Stander, Tinus (Elsevier, 2020-04)
    Please read abstract in the article.
  • Effect of TID electronradiation on SiGe BiCMOS LNAs at V-band 
    Minko, Flavien Sagouo; Stander, Tinus (Elsevier, 2020-09)
    We investigate the effect of TID electron irradiation on a 65 GHz LNA in 130 nm SiGe BiCMOS. The LNA is exposed to a Sr-90 radiation source and irradiated at a rate of 200 krad (Si)/hr to a total dose of 15 Mrad (Si), with ...
  • Embedded system upgrade based on Raspberry Pi computer for a 23/31 GHz dual-channel water vapor radiometer 
    Ferrusca, Daniel; Cuazoson, Jetzael; Contreras, Jesus; Hiriart, David; Ibarra, Eduardo; Kurtz, Stanley; Stander, Tinus; Velazquez, Miguel (Society of Photo-optical Instrumentation Engineers, 2020-12-13)
    We present the refurbishment of a 23.8/31.5 GHz tipping radiometer (WVR-III) to characterize atmospheric opacity for astronomical sites. The mid-life upgrade will bring new life to the 20-year-old WVR-III with most control ...
  • Entrepreneurship as an IEEE workforce development theme 
    Sinha, Saurabh; Stander, Tinus; IEEE Global Humanitarian Technology Conference (GHTC) (2013 : San José, California, United States of America) (Institute of Electrical and Electronics Engineers, 2013)
    The IEEE is currently planning an extensive workforce development (WFD) programme through its volunteer and associated networks. Together with environmental scans, potential learning areas and contributing partners are ...
  • Experimental study of electrophoretic deposited carbon nanotubes on microstrip transmission line resonators and filters 
    Stander, Tinus; Diniz, Eric; Sinha, Saurabh (Czech Technical University, 2013-09)
    The electrical properties of single-walled carbon nanotube electrophoreses deposition on different types of gold-plated microstrip devices are investigated. Simple transmission lines, transmission line resonators and ...
  • A flexible Pcell-driven design flow for mm-wave on-chip passives 
    Stander, Tinus; IEEE International Microwave and RF Conference (2015 : Hyderabad, India) (Institute of Electrical and Electronics Engineers, 2015-12)
    On-chip EM modeling at mm-wave frequencies requires design methods that incorporate the layout and verification macros of IC EDA tools with parameterized EM CAD. We propose a novel, flexible design flow for 3D EM modeling ...
  • A frequency agile switched delay line slow-wave 
    Sinha, Saurabh; Bhana, V.B. (Vishal); Stander, Tinus; International Conference on Radioelektronika, 23rd : 2013 : Pardubice, Czech Republic (Institute of Electrical and Electronics Engineers, 2013-04)
    A mm-wave BiCMOS back-end metallization switched delay line frequency agile filter is presented. Miniaturization of the delay lines is achieved by using slow-wave propagation modes on shielded CPWs, with a standard ...
  • A geometric approach to group delay network synthesis 
    Osuch, Piotr Jan; Stander, Tinus (Radioengineering Society, 2016-06)
    All-pass networks with prescribed group delay are used for analogue signal processing and equalisation of transmission channels. The state-of-the-art methods for synthesising quasi-arbitrary group delay functions ...
  • A high-Q second-order all-pass delay network in CMOS 
    Osuch, Piotr Jan; Stander, Tinus (Institute of Electrical and Electronics Engineers, 2019-03)
    Analogue signal processing (ASP) is a promising alternative to DSP techniques in future telecommunication and data  processing  solutions.  Second‐order  all‐pass  delay  networks  –  the  building  blocks  of  ASPs  –  ...
  • Implementation of tunable resonators in planar groove gap waveguide technology 
    Oyedokun, Titus; Geschke, Riana H.; Stander, Tinus (Cambridge University Press, 2022-05)
    Please read abstract in the article.
  • Inactivating pathogenic micro-organisms through microwave sterilization technology 
    Sinha, Saurabh; Stander, Tinus; Du Preez, Jaco; International Symposium on Electrodynamic and Mechatronic System (SELM) 2013 : Opole-Zawiercie (Institute of Electrical and Electronics Engineers, 2013-05)
    Microwave heating as a means of inactivating pathogenic micro-organisms in commercially produced food products in sterilization and pasteurization processes is discussed in this paper. The physics of a microwave heating ...