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van Wanum, M. (author), Lia, E. (author), de Boer, L. (author), Bronts, L.Q. (author), Marien Rodenburg, M. (author), Jacobs, B. (author), Inácio, A.I. (author), van Heijningen, M. (author), van Vliet, F.E. (author)This paper describes a Ku-band up-converter for low cost satellite Machine to Machine (M2M) applications. The up-converter comprises a heterodyne sliding-IF architecture. This converts the baseband input signal (0 – 20 MHz) to the RF output signal (13.75 – 14.75 GHz). The necessary Local Oscillator (LO) signals are generated by an on-chip...conference paper 2020
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van Wanum, M. (author), de Boer, L. (author), van Vliet, F.E. (author)This paper describes a fractional-N PLL IC with absolute phase control utilizing an on-chip loop-filter. The frequency range is 2.6 to 3.5 GHz, which covers one of the bands for future low-band 5G telecommunication systems. For phased-array operation a compact form-factor is needed as the space available for the complete front-end is limited by...conference paper 2018
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Velner, J. (author), Klumperink, E.A.M. (author), Nauta, B. (author), van Vliet, F.E. (author)A type-III PLL is used to generate linear frequency ramps with 386 kHz RMS frequency error in L-band (3088 kHz in X-band) and 10% fractional bandwidth. Pulse durations can be as low as 10 μs without performance degradation. The system covers the L-, S-, C- and X-bands. A programmable output driver delivering -17.9 to +4.9 dBm differentially is...conference paper 2013
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Velner, J. (author), Klumperink, E.A.M. (author), Nauta, B. (author), van Vliet, F.E. (author)This work presents a fully integrated multi-band frequency synthesizer that is capable of creating wide-band linear frequency sweeps of very short duration. The main aim is to create a flexible waveform generation system, requiring distribution of a low frequency reference rather than RF signals. By using a phase-locked loop, frequency...conference paper 2013
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Ma, K. (author), van Leuken, R. (author), Vidojkovic, M. (author), Romme, J. (author), Rampu, S. (author), Pflug, H. (author), Huang, L. (author), Dolmans, G. (author)PLLs have become an important part of electrical systems. When designing a PLL, an efficient and reliable simulation platform for system evaluation is needed. However, the closed loop simulation of a PLL is time consuming. To address this problem, in this paper, a new PLL model containing both digital and analog parts based on the recently...conference paper 2011
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TNO Defensie en Veiligheid (author), Maas, A.P.M. (author), van Vliet, F.E. (author)This paper describes the design and performance of a low-cost synthesized FMCW radar module, operating in S band. The bi-layer PCB contains a frequency-agile low phase-noise synthesizer and three identical coherent receive-channels. The transmit channel has an automatic power control system that reduces the output power when a large reflection...conference paper 2008