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Haseltalab, A. (author)
In the last few years, autonomous shipping has been under extensive consideration by academic and industrial communities as well as governmental organizations due to several potential advantages that it introduces. Furthermore, due to the drastic environmental consequences of transport overwater, international organizations have enforced the...
doctoral thesis 2019
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Zong, Z. (author), Chen, Peng (author), Staszewski, R.B. (author)
In this paper, we propose a 60-GHz fractional-N digital frequency synthesizer aimed at reducing its phase noise (PN) at both the flicker (1/f <sup>3</sup> ) and thermal (1/f <sup>2</sup> ) regions while minimizing its power consumption. The digitally controlled oscillator (DCO) fundamentally resonates at 20 GHz and co-generates a strong...
journal article 2019
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Haseltalab, A. (author), Negenborn, R.R. (author)
Over the last few years, autonomous shipping has been under extensive investigation by the scientific community where the main focus has been on ship maneuvering control and not on the optimal use of energy sources. In this paper, the purpose is to bridge the gap between maneuvering control, energy management, and the control of the Power and...
journal article 2019
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Zhang, Zhixia (author), Zhang, Long (author), Yan, Xinlin (author), Wang, Hongqiang (author), Liu, Yanyan (author), Yu, C. (author), Cao, Xiaoting (author), van Eijck, L. (author), Wen, Bin (author)
Sulfide solid electrolytes possess high ionic conductivity and moderate dendrite suppression capability, but rather poor compatibility against oxide cathodes and metallic Li. Here, we report O-doped Li<sub>6</sub>PS<sub>5</sub>Br as solid electrolyte synthesized by a facile solid-state sintering. Different from other O-incorporated sulfides,...
journal article 2019
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Zhang, Zhixia (author), Zhang, Long (author), Liu, Yanyan (author), Yu, C. (author), Yan, Xinlin (author), Xu, B. (author), Wang, L. (author)
Li<sub>6</sub>PS<sub>5</sub>X (X = Cl, Br, I) argyrodites possess high ionic conductivity but with rather scattered values due to various processing conditions. In this work, Li<sub>6</sub>PS<sub>5</sub>X solid electrolytes were prepared by solid-state sintering or mechanical alloying and optimized with or without excess Li<sub>2</sub>S....
journal article 2018
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Kuo, Feng-Wei (author), Babaie, M. (author), Chen, Huan-Neng (Ron) (author), Cho, Lan-Chou (author), Jou, Chewn-Pu (author), Chen, Mark (author), Staszewski, R.B. (author)
We propose a time-predictive architecture of an all-digital PLL (ADPLL) for cellular radios, which is optimized for advanced CMOS. It is based on a 1/8-length time-to-digital converter (TDC) of stabilized 7-ps resolution, as well as wide tuning range, and fine-resolution class-F digitally controlled oscillator (DCO) with only switchable metal...
journal article 2018
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Pourmousavian, Naser (author), Kuo, Feng Wei (author), Siriburanon, Teerachot (author), Babaie, M. (author), Staszewski, R.B. (author)
This paper proposes an ultra-low-voltage (ULV) fractional-N all-digital PLL (ADPLL) powered from a single 0.5-V supply. While its digitally controlled oscillator (DCO) runs directly at 0.5 V, an internal switched-capacitor dc-dc converter ``doubles'' the supply voltage to all the digital circuitry and particularly regulates the time-to...
journal article 2018
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Ronchini Ximenes, A. (author), Vlachogiannakis, G. (author), Staszewski, R.B. (author)
In this paper, we apply various area reduction techniques on an inductor–capacitor (LC)-tank oscillator in order to make its size comparable to that of ring oscillators (ROs), while still retaining its salient features of excellent phase noise and low sensitivity to supply variations. The resulting oscillator employs a proposed ultracompact...
journal article 2017
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Bashir, I. (author), Staszewski, R.B. (author), Balsara, Poras T. (author)
We present a numerical model of a wideband injection-locked frequency modulator used in a polar transmitter for 3G cellular radio application. At the heart of the system is a self-injection-locked oscillator with a programmable linear tuning range of up to 200 MHz at 4-GHz oscillation frequency. The oscillator is injection locked to a time...
journal article 2017
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Kuo, Feng-Wei (author), Binsfeld Ferreira, S. (author), Chen, Huan-Neng Ron (author), Cho, Lan-Chou (author), Jou, Chewn-Pu (author), Hsueh, Fu-Lung (author), Madadi, I. (author), Tohidian, M. (author), Shahmohammadi, M. (author), Babaie, M. (author), Staszewski, R.B. (author)
We present an ultra-low-power Bluetooth low-energy (BLE) transceiver (TRX) for the Internet of Things (IoT) optimized for digital 28-nm CMOS. A transmitter (TX) employs an all-digital phase-locked loop (ADPLL) with a switched current-source digitally controlled oscillator (DCO) featuring low frequency pushing, and class-E/F<sub>2</sub>...
journal article 2017
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Shahmohammadi, M. (author)
doctoral thesis 2016
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Babaie, M. (author)
doctoral thesis 2016
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van Turnhout, J. (author)
The dielectric spectra of colloidal systems often contain a typical low frequency dispersion, which usually remains unnoticed, because of the presence of strong conduction losses. The KK relations offer a means for converting ε′ into ε″ data. This allows us to calculate conduction free ε″ spectra in which the l.f. dispersion will show up...
journal article 2016
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Geiregat, P.A. (author), Houtepen, A.J. (author), Van Thourhout, Dries (author), Hens, Zeger (author)
All-optical approaches to change the wavelength of a data signal are considered more energy-and cost-effective than current wavelength conversion schemes that rely on back and forth switching between the electrical and optical domains. However, the lack of cost-effective materials with sufficiently adequate optoelectronic properties hampers...
journal article 2016
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Babaie, M. (author), Kuo, F (author), Chen, H (author), Cho, L (author), Jou, C. P. (author), Hsueh, F. L. (author), Shahmohammadi, M. (author), Staszewski, R.B. (author)
We propose a new transmitter architecture for ultra-low power radios in which the most energy-hungry RF circuits operate at a supply just above a threshold voltage of CMOS transistors. An all-digital PLL employs a digitally controlled oscillator with switching current sources to reduce supply voltage and power without sacrificing its startup...
journal article 2016
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Ahmadi Mehr, S.A.R. (author)
Cost reduction is one of the main driving forces for integration. As such, advanced CMOS technologies offer excellent digital functionality and high-density integration capabilities. Properties that persuade designers to exploit new digitally assisted approaches rather than following conventional analogue techniques. Using these new concepts,...
doctoral thesis 2015
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Wu, W. (author), Staszewski, R.B. (author), Long, J.R. (author)
A mm-wave digital transmitter based on a 60 GHz all-digital phase-locked loop (ADPLL) with wideband frequency modulation (FM) for FMCW radar applications is proposed. The fractional-N ADPLL employs a high-resolution 60 GHz digitally controlled oscillator (DCO) and is capable of multi-rate two-point FM. It achieves a measured rms jitter of 590.2...
journal article 2014
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Zhuang, J. (author), Staszewski, R.B. (author)
This paper presents an all-digital phase-locked loop (ADPLL) architecture in a new light that allows it to significantly save power through complexity reduction of its phase locking and detection mechanisms. The natural predictive nature of the ADPLL to estimate next edge occurrence of the reference clock is exploited here to reduce the timing...
journal article 2014
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Jacobs, F.W. (author)
Inleiding De vraag is of onderwijsinstellingen voorzien in leeromgevingen die verlangde competenties voor digitalisering versterken. Meerdere auteurs menen dat dit niet het geval is. Anders dan bij sectoren die eerder grensverleggende ICT-innovaties ondergingen, is het grootste deel van de processen in en rond leeromgevingen in het onderwijs,...
doctoral thesis 2013
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Zhao, Q. (author), Schelen, B. (author), Schouten, R. (author)
We have built an all-solid-state camera that is directly modulated at the pixel level for frequency-domain fluorescence lifetime imaging microscopy (FLIM) measurements. This novel camera eliminates the need for an image intensifier through the use of an application-specific charge coupled device design in a frequency-domain FLIM system. The...
journal article 2012
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