Electronics Research Laboratory
Dept. of Microelectronics

ir. R.J. Bootsman

PhD student
Electronic Circuits and Architectures (ELCA), Department of Microelectronics

Expertise: Digital-Intensive RF transmitters

Themes: RF electronics

Biography

Rob Bootsman was born in Nieuw-Vennep, the Netherlands in 1992. He received the BSc degree (cum laude) in Electrical Engineering in 2014 and the MSc degree in Electrical Engineering track Micro Electronics in early 2018 from the Delft University of Technology, the Netherlands.

 

He is currently working towards his Ph.D. at the Delft University of Technology. His research interests include Digital-Intensive and Energy Efficient RF Power Amplifiers, High-Speed Data Conversion, and Processing.

Projects history

High Power RF-DAC

This project investigates the next generation of high power RF-DACs and digital intensive receivers

  1. 5.8 A 20W CMOS/LDMOS All-Digital Transmitter with Dynamic Retiming and Glitch-Free Phase Mapper, Achieving 68%/62% Peak Drain/System Efficiency
    Mul, Dieuwert Peter Nicolaas; Bootsman, Rob J; Beikmirza, Mohammadreza; El Boustani, Ossama; Shen, Yiyu; Maassen, Daniel; van Velzen, Bart; Rousstia, Mohadig; Koster, Ronald; Gajadharsing, John R; Fritzsch, Thomas; Alavi, Morteza; De Vreede, Leo C.N.;
    In 2025 IEEE International Solid-State Circuits Conference (ISSCC),
    pp. 104-106, 2025. DOI: 10.1109/ISSCC49661.2025.10904650
    Keywords: ... Base stations;Frequency modulation;Transmitters;Switches;Logic gates;Solid state circuits;Wideband;Signal resolution;Power generation;Switching circuits.

  2. The Efficiency and Power Utilization of Current-Scaling Digital Transmitters
    Mul, Dieuwert P. N.; Bootsman, Robert J.; Beikmirza, Mohammadreza; Alavi, Morteza S.; Vreede, Leo C. N. de;
    IEEE Transactions on Microwave Theory and Techniques,
    Volume 72, Issue 7, pp. 4350-4366, 2024. DOI: 10.1109/TMTT.2023.3336984
    Keywords: ... Switches;Radio frequency;Logic gates;Transmitters;Power generation;Loading;Power amplifiers;Current control;Peak to average power ratio;Current mode;current scaling;digital transmitter (DTX);Doherty;efficiency;multiphase;peak-to-average-power ratio (PAPR);polar;power utilization;RF-DAC;signed Cartesian (SC);upconversion.

  3. A Wideband Digital-Intensive Current-Mode Transmitter Line-Up
    Shen, Yiyu; Hoogelander, Martijn; Bootsman, Rob; Alavi, Morteza S.; de Vreede, Leo C. N.;
    IEEE Journal of Solid-State Circuits,
    Volume 58, Issue 9, pp. 2489-2500, 2023. DOI: 10.1109/JSSC.2023.3279235
    Keywords: ... Radio frequency;Linearity;Power amplifiers;Harmonic analysis;Energy efficiency;Power generation;Impedance;Common-gate (CG)/common-base (CB) power amplifier (PA);current division path;digital pre-distortion (DPD)-free;direct-digital RF modulator (DDRM);dynamic biasing;harmonic rejection (HR);IQ-mapping;quadrature up-converter;radio frequency digital-to-analog converter (RFDAC);TX line-up.

  4. High-Power Digital Transmitters for Wireless Infrastructure Applications (A Feasibility Study)
    Bootsman, Robert J.; Mul, Dieuwert P. N.; Shen, Yiyu; Hashemi, Mohsen; Heeres, Rob M.; van Rijs, Fred; Alavi, Morteza S.; de Vreede, Leo C. N.;
    IEEE Transactions on Microwave Theory and Techniques,
    Volume 70, Issue 5, pp. 2835-2850, 2022. DOI: 10.1109/TMTT.2022.3153000
    Keywords: ... Radio frequency;CMOS technology;Power generation;Logic gates;Transmitters;Threshold voltage;Switches;Class-E;CMOS;digital predistortion (DPD);digital transmitter (DTX);efficient;GaN;high-power RF;laterally-diffused MOS (LDMOS);mixing power digital-to-analog converter (DAC);polar.

  5. A Wideband IQ-Mapping Direct-Digital RF Modulator for 5G Transmitters
    Shen, Yiyu; Bootsman, Robert; Alavi, Morteza S.; de Vreede, Leo C. N.;
    IEEE Journal of Solid-State Circuits,
    Volume 57, Issue 5, pp. 1446-1456, 2022. DOI: 10.1109/JSSC.2022.3144362
    Keywords: ... Radio frequency;Modulation;Computer architecture;Power generation;Microprocessors;Delays;Clocks;Current-steering digital-to-analog converter (DAC);digital pre-distortion (DPD)-free;digital-intensive transmitter (DTX);direct-digital RF modulator (DDRM);I/Q image;IQ-mapping;mixing DAC;PA pre-driver;quadrature up-converter;radio-frequency digital-analog converter (RFDAC).

  6. A 39 W Fully Digital Wideband Inverted Doherty Transmitter
    Bootsman, Robert; Shen, Yiyu; Mul, Dieuwert; Rousstia, Mohadig; Heeres, Rob; van Rijs, Fred; Gajadharsing, John; Alavi, Morteza S.; de Vreede, Leo C.N.;
    In 2022 IEEE/MTT-S International Microwave Symposium - IMS 2022,
    pp. 979-982, 2022. DOI: 10.1109/IMS37962.2022.9865405
    Keywords: ... Radio frequency;Power demand;Three-dimensional displays;Transmitters;Power combiners;Power system harmonics;Harmonic analysis;digital transmitters;LDMOS;CMOS;inverted Doherty;wideband.

  7. Efficiency and Linearity of Digital "Class-C Like" Transmitters
    Mul, Dieuwert P.N.; Bootsman, Rob J.; Bruinsma, Quinten; Shen, Yiyu; Krause, Sebastian; Quay, Rüdiger; Pelk, Marco J.; van Rijs, Fred; Heeres, Rob M.; Pires, Sergio; Alavi, Morteza; de Vreede, Leo C.N.;
    In 2020 50th European Microwave Conference (EuMC),
    pp. 1-4, 2021. DOI: 10.23919/EuMC48046.2021.9338122
    Keywords: ... Transmitters;Impedance matching;Power amplifiers;Linearity;Energy efficiency;Power generation;Next generation networking;Class-C;digital transmitter;efficiency;linearity;LDMOS;CMOS RFIC;polar transmitter;RFDAC;digital power amplifier.

  8. An 18.5 W Fully-Digital Transmitter with 60.4 % Peak System Efficiency
    Bootsman, R.J.; Mul, D.P.N.; Shen, Y.; Heeres, R.M.; van Rijs, F.; Alavi, M.S.; de Vreede, L.C.N.;
    In 2020 IEEE/MTT-S International Microwave Symposium (IMS),
    pp. 1113-1116, 2020. DOI: 10.1109/IMS30576.2020.9223942
    Keywords: ... Radio frequency;Microwave measurement;Thermometers;Power measurement;Transmitters;Power amplifiers;Prototypes;Digital transmitter;CMOS RFIC;LDMOS;polar transmitter;digital pre-distortion (DPD);power RFDAC;digital power amplifier.

  9. A 1–3 GHz I/Q Interleaved Direct-Digital RF Modulator As A Driver for A Common-Gate PA in 40 nm CMOS
    Shen, Yiyu; Bootsman, Rob; Alavi, Morteza S.; de Vreede, Leo C.N.;
    In 2020 IEEE Radio Frequency Integrated Circuits Symposium (RFIC),
    pp. 287-290, 2020. DOI: 10.1109/RFIC49505.2020.9218324
    Keywords: ... Harmonic analysis;IP networks;Radio frequency;Clocks;Modulation;Computer architecture;Microprocessors;DDRM;PA driver;RF-DAC;CG PA;IQ-Interleaving;harmonic rejection;dynamic biasing;DPD-free.

  10. A 0.5-3 GHz I/Q Interleaved Direct-Digital RF Modulator with up to 320 MHz Modulation Bandwidth in 40 nm CMOS
    Shen, Yiyu; Bootsman, Rob; Alavi, Morteza S.; de Vreede, Leonardus;
    In 2020 IEEE Custom Integrated Circuits Conference (CICC),
    pp. 1-4, 2020. DOI: 10.1109/CICC48029.2020.9075949
    Keywords: ... Modulation;Bandwidth;Radio frequency;Computer architecture;Clocks;Distortion;Power generation;DDRM;RFDAC;quadrature up-converter;IQ-Mapping;Digital-Intensive Transmitter;DPD-free.

BibTeX support

Last updated: 16 Jun 2022

Rob Bootsman