Browsing Engineering, Built Environment and Information Technology by Supervisor "Sinha, Saurabh"
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Browsing Engineering, Built Environment and Information Technology by Supervisor "Sinha, Saurabh"
Now showing items 1-20 of 22
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(University of Pretoria, 2009-04-08)This research looks into the design of an integrated in-phase/quadrature (I/Q) VCO operating at 5 GHz. The goal is to design a phase shifter that is implemented at the LO used for RF up conversion. The target application ...
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(University of Pretoria, 2017)The standardisation of the 60 - 80 GHz band by the IEEE802.15.3 task group 3C offers prospects for high speed gigabit wireless applications. This mm-wave band can be used to achieve high data rate transmission in high ...
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(University of Pretoria, 2013-01-09)On-chip impedance tuning is used to overcome IC perturbations caused by packaging stress. Tuning is more important for matching networks of radio frequency (RF) systems. Possible package resonance and fabrication process ...
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(University of Pretoria, 2011)While a lot of time and resources have been placed into transceiver design, due to the pace of a conventional engineering design process, the design of a power amplifier is often completed using scattered resources; and ...
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(University of Pretoria, 2017)The viability of low cost, distributed, and autonomous wireless sensor networks is determined by the affordability of the integration and operation of each sensor node. Self-sufficient nodes which harvest energy from the ...
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(University of Pretoria, 2013-06-04)The field of infrared (IR) detector technology has shown vast improvements in terms of speed and performance over the years. Specifically the dynamic range (DR) and sensitivity of detectors showed significant improvements. ...
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(University of Pretoria, 2015)There exists a need to be able to acquire high data speed over a wide bandwidth. This requires the use of an analogue-to-digital converter (ADC) capable of achieving wide input bandwidth. With the 60 GHz unlicensed band, ...
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(University of Pretoria, 2014)The large unlicensed 3 GHz overlapping bandwidth that is available worldwide at 60 GHz has resulted in renewed interest in 60 GHz technology. This frequency band has made it attractive for short-range gigabit wireless ...
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(University of Pretoria, 2014-07-29)The large unlicensed 3 GHz overlapping bandwidth that is available worldwide at 60 GHz has resulted in renewed interest in 60 GHz technology. This frequency band has made it attractive for short-range gigabit wireless ...
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(University of Pretoria, 2011)Although the majority of wireless receiver subsystems have moved to digital signal processing over the last decade, the low noise amplifier (LNA) remains a crucial analogue subsystem in any design being the dominant subsystem ...
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(University of Pretoria, 2010-09-17)Low noise low division 2 GHz RF synthesizer integrated circuits (ICs) are conventionally implemented in some form of HBT process such as SiGe or GaAs. The research in this dissertation differs from convention, with the aim ...
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(University of Pretoria, 2020-03)Bipolar complementary metal-oxide semiconductor (BiCMOS) technology is the platform of choice for near-Infrared (IR) detector research because of low power consumption, increased operating speed and a high fill-factor. The ...
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(University of PretoriaUniversity of Pretoria, 2016)In this dissertation, the phase noise performance of single-ended ring oscillators was investigated to determine their suitability in wideband, low phase noise oscillator applications. The main focus was on improving the ...
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(University of Pretoria, 2013)
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(University of Pretoria, 2017)Oscillators are ubiquitous to radio frequency circuits, where frequency translations and channel selection play a central role in the analogue communications channel. Oscillators also form part of digital systems as a time ...
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(University of Pretoria, 2010-05-13)The research conducted in this dissertation studies the issues regarding the improvement of phase noise performance in a BiCMOS Silicon Germanium (SiGe) cross-coupled differential-pair voltage controlled oscillator (VCO) ...
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(University of Pretoria, 2011)Jitter requirements have become more stringent with higher speed serial communication links. Reducing jitter, with the main focus on reducing data dependant jitter (DDJ), is presented by employing adaptive finite impulse ...
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(University of Pretoria, 2013)The ever-increasing demand for higher speed in wireless consumer applications has increased the interest in the unlicensed spectrum of 7 GHz around 60 GHz. The high atmospheric oxygen absorption at 60 GHz and small size ...
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(University of Pretoria, 2012-04-24)A 5 GHz continuous unlicensed bandwidth is available at millimeter-wave (mm-wave) frequencies around 60 GHz and offers the prospect for multi gigabit wireless applications. The inherent atmospheric attenuation at 60 GHz ...
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(University of Pretoria, 2015)High-speed digital to analogue converters (DAC), which are optimised for large bandwidth signal synthesis applications, are a fundamental building block and enabling technology in industrial instrumentation, military, ...
Now showing items 1-20 of 22