MSc G Singh

1. MP-DPD: Low-Complexity Mixed-Precision Neural Networks for Energy-Efficient Digital Predistortion of Wideband Power Amplifiers
   Wu, Yizhuo; Li, Ang; Beikmirza, Mohammadreza; Singh, Gagan Deep; Chen, Qinyu; de Vreede, Leo C. N.; Alavi, Morteza; Gao, Chang;
   IEEE Microwave and Wireless Technology Letters,
   Volume 34, Issue 6, pp. 817-820, 2024. DOI: 10.1109/LMWT.2024.3386330
   
   Keywords: ...

   Power demand;Quantization (signal);Neural networks;Logic gates;Energy efficiency;Wideband;Data models;Digital systems;Deep neural network (DNN);digital predistortion (DPD);digital transmitter (DTX);power amplifier (PA);quantization.

2. OpenDPD: An Open-Source End-to-End Learning & Benchmarking Framework for Wideband Power Amplifier Modeling and Digital Pre-Distortion
   Wu, Yizhuo; Singh, Gagan Deep; Beikmirza, Mohammadreza; de Vreede, Leo C. N.; Alavi, Morteza; Gao, Chang;
   In 2024 IEEE International Symposium on Circuits and Systems (ISCAS),
   pp. 1-5, 2024. DOI: 10.1109/ISCAS58744.2024.10558162
   
   Keywords: ...

   Codes;Transmitters;OFDM;Power amplifiers;Artificial neural networks;Documentation;Benchmark testing;digital pre-distortion;behavioral modeling;deep neural network;power amplifier;digital transmitter.

3. An Inverted Doherty Power Amplifier Insensitive to Load Variation With an Embedded Impedance Sensor in Its Output Power-Combining Network
   Singh, Gagan Deep; Nemati, Hossein Mashad; Alavi, Morteza S.; de Vreede, Leonardus Cornelis Nicolaas;
   IEEE Transactions on Microwave Theory and Techniques,
   Volume 71, Issue 12, pp. 5194-5208, 2023. DOI: 10.1109/TMTT.2023.3277081
   
   Keywords: ...

   Impedance;Bandwidth;Wideband;Power amplifiers;DC-DC power converters;Tunable circuits and devices;Phase shifters;DC--DC power converters;impedance sensor;inverted Doherty power amplifier (IDPA);load-insensitive power amplifiers (PAs);tunable phase shifter;tunable resonators (TRs).

4. Influence of sputter pressure on magnetic and structural properties of Permalloy thin films
   Singh, Sukhvinder; Abelmann, Leon; Gao, Haibin; Hartmann, Uwe;
   Journal of Magnetism and Magnetic Materials,
   Volume 586, 2023. All Open Access, Green Open Access. DOI: 10.1016/j.jmmm.2023.171138
   
   Keywords: ...

   Film preparation; Iron alloys; Magnetic force microscopy; Magnetic thin films; Nickel alloys; Argon pressure; Domain configurations; Increase in pressure; Magnetic-force microscopy; Permalloy films; Permalloy thin films; Permalloys; Pressure domain; Sputter pressure; Sputtering; Magnetic domains.
   
   
   Abstract: ...

   Well-defined and technically relevant domain configurations are sought in patterned magnetic thin films. We used Magnetic Force Microscopy to investigate these in square-patterned Permalloy films. The films were prepared using dc sputter deposition by varying the Argon pressure from 1.5×10−3 to 30.0×10−3 mbar. The Landau domain configuration was found in films prepared at 1.5×10−3 mbar pressure. With an increase in pressure, tulip and irregular domains were consecutively formed. Based on magnetic and structural characterizations, an increase in coercivity and a decrease in Permalloy film density were observed at the same time. © 2023 Elsevier B.V.
   
   document

5. PA Output Power and Efficiency Enhancement Across the 2:1 VSWR Circle using Static Active Load Adjustment
   Singh, Gagan Deep; Nemati, Hossein Mashad; Alavi, Morteza S.; de Vreede, Leo C.N.;
   In 2023 IEEE/MTT-S International Microwave Symposium - IMS 2023,
   pp. 211-214, 2023. DOI: 10.1109/IMS37964.2023.10188045
   
   Keywords: ...

   Loading;Power amplifiers;Couplers;Microwave theory and techniques;Microwave amplifiers;Power generation;Power Amplifier;VSWR;Coupler;Gallium Nitrite (GaN);HEMT.

6. A Load Insensitive Doherty Power Amplifier with better than −39dBc ACLR on 2:1 VSWR Circle using a Constant 50 Ω Trained Pre-distorted Signal
   Singh, Gagan Deep; Mul, Dieuwert; Nemati, Hossein Mashad; Alavi, Morteza S.; de Vreede, Leo C.N.;
   In 2022 52nd European Microwave Conference (EuMC),
   pp. 222-225, 2022. DOI: 10.23919/EuMC54642.2022.9924452
   
   Keywords: ...

   Phased arrays;Printed circuits;Power amplifiers;Prototypes;Load management;Telephone sets;Microwave circuits;self-healing transmitter;VSWR;control circuit;Doherty;six-port reflectometers;tunable matching networks.

7. Multi-Layer Graphene Pirani Pressure Sensors
   Romijn, Joost; Dolleman, Robin; Singh, Manvika; van der Zant, Herre; Steeneken, Peter; Sarro, Pasqualina; Vollebregt, Sten;
   IOP Nanotechnology,
   Volume 32, Issue 33, pp. 335501, 2021. DOI: 10.1088/1361-6528/abff8e

8. Aesthetically acceptable, breath friendly triboelectric face masks: design, fabrication and its efficacy
   P. K. Santra; A. K. Singh; G. U. Kulkarni; S. Kundu; T. S. Rao; M. K. Ganesha;
   Energy Technology,
   September 2021.
   
   Abstract: ...

   Since the beginning of the COVID-19 pandemic, several attempts have been made worldwide to control the spread of the virus. It is widely accepted that wearing face masks in public and workplaces suppresses the transmission of the virus. Highly effective face masks, e.g. N95, have a high filtration efficiency but with a large pressure drop, which does not allow one to wear the mask comfortably for long hours. A larger population wearing a moderate efficiency mask can also cut the transmission at large. Herein, mask panels from readily available fabrics are developed, that can generate triboelectricity, which enhances the filtration efficiency by around 18% without compromising the pressure drop—allowing one to wear the mask for an extended period. The unique cup-shaped design of the mask provides a snug fit with no speech distortion or fogging on the glasses.
   
   document

9. A Low-Loss Load Correction Technique for Self-Healing Power Amplifiers Using a Modified Two-Tap Six-Port Network
   Singh, Gagan Deep; Nemati, Hossein Mashad; de Vreede, Leonardus Cornelis Nicolaas;
   IEEE Transactions on Microwave Theory and Techniques,
   Volume 69, Issue 9, pp. 4069-4081, 2021. DOI: 10.1109/TMTT.2021.3096949
   
   Keywords: ...

   Impedance;Optimized production technology;Shunts (electrical);Resonators;Power generation;Capacitors;Isolators;Adjacent channel power ratio (ACPR);control circuit;laterally-diffused metal-oxide semiconductor (LDMOS) devices;power amplifier (PA) circuits;RF circuit;six-port reflectometers;tunable resonators.

10. A transfer-free approach to wafer-scale graphene deposited by chemical vapour deposition
    Sten Vollebregt; Filiberto Ricciardella; Joost Romijn; Manvika Singh; Shengtai Shi; Lina Sarro;
    In Graphene Conference,
    2018. (invited).
    document

11. A Miniaturized Low Power Pirani Pressure Sensor Based on Suspended Graphene
    Joost Romijn; Sten Vollebregt; Robin J. Dolleman; Manvika Singh; Herre S.J. van der Zant; Peter G. Steeneken; Pasqualina M. Sarro;
    In Proceedings of IEEE NEMS,
    2018.

12. Wafer-scale measurements of the specific contact resistance between different metals and mono- and multi-layer graphene
    S. Vollebregt; M. Singh; D.J. Wehenkel; R. van Rijn; P.M. Sarro;
    In Proc. of the 43rd international conference on Micro and Nanoengineering (MNE),
    pp. 152, 2017.

13. A dual-notch +27dBm Tx-power electrical-balance duplexer
    B. van Liempd; J. Craninckx; R. Singh; P. Reynaert; S. Malotaux; J.R. Long;
    In P Andreani; A Bevilacqua; G Meneghesso (Ed.), Proceedings of the 40th European Solid-State Circuit Conference,
    IEEE, pp. 463-466, 2014. Harvest.

14. The Performance of 2D Array Detectors for Light Sheet based Fluorescence Correlation Spectroscopy
    A.P. Singh; J.W. Krieger; J. Buchholz; E. Charbon; J. Langowski; T. Wohland;
    OSA Optics Express,
    Volume 21, Issue 7, pp. 8652-8668, April 2013.
    document

15. Protein-Protein Interactions In Vivo Studied by Single Plane Illumination Fluorescence Correlation Spectroscopy (SPIM-FCS)
    A. Pernus; J.W. Krieger; J. Buchholz; A.P. Singh; E. Charbon; T. Wohland; J. Langowski;
    Biophysical Journal,
    Volume 104, Issue 2, pp. 575a, January 2013.
    document

16. A 20bit continuous-time ΣΔ modulator with a Gm-C integrator, 120dB CMRR and 15 ppm INL
    G. Singh; R. Wu; Y. Chae; K.A.A. Makinwa;
    In Y. Deval; J-B Begueret; D Belot (Ed.), Proceedings 2012 38th European Solid-State Circuit Conference,
    IEEE, pp. 385-388, 2012.

17. CMOS ultra low-power wavelet filter based sense amplifier for Cardiac signal analysis
    R. Sehgal; A. Singh; W.A. Serdijn;
    In Proc. Workshop on Circuits, Systems and Signal Processing (ProRisc),
    Veldhoven, the Netherlands, pp. 260-266, Nov. 27-28 2008.

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