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ORCIDVishnu Unnikrishnan 0001
Person information
- affiliation: Tampere University, Finland
- affiliation (2017-2021): Aalto University, Department of Electronics and Nanoengineering, Finland
- affiliation (PhD 2016): Linköping University, Division of Electronics Systems, Sweden
- affiliation (2004-2009): Robert Bosch Engineering and Business Solutions Ltd., Bangalore, India
Other persons with the same name
- Vishnu Unnikrishnan 0002
![[0000-0002-0086-594X]](https://dblp.dagstuhl.de/img/orcid-mark.12x12.png "0000-0002-0086-594X")
— Otto-von-Guericke University Magdeburg, Knowledge Management & Discovery Lab, Germany
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2020 – today
- 2024
[j12]Agnimesh Ghosh, Andrei Spelman, Tze Hin Cheung, Dhanashree Boopathy, Kari Stadius, Manil Dev Gomony, Mikko Valkama, Jussi Ryynänen, Marko Kosunen, Vishnu Unnikrishnan:
Reconfigurable Signal Processing and DSP Hardware Generator for 5G and Beyond Transmitters. IEEE Trans. Very Large Scale Integr. Syst. 32(1): 4-15 (2024)- [j11]Guixian Xu, Vesa Lampu, Marko Kosunen, Vishnu Unnikrishnan, Jussi Ryynänen, Mikko Valkama, Lauri Anttila:
Digital Polar Transmitters for Massive MIMO: Sum-Rate and Power Efficiency Analysis. IEEE Trans. Wirel. Commun. 23(1): 789-805 (2024) - [c23]Tze Hin Cheung, Agnimesh Ghosh, Andrei Spelman, Dhanashree Boopathy, Vishnu Unnikrishnan, Lauri Anttila, Mikko Valkama, Marko Kosunen, Kari Stadius, Jussi Ryynänen:
Variable Time-Step 2.5-15 GHz Phase Modulator with Pre-Distortion for Outphasing Transmitters. NewCAS 2024: 1-5 - 2023
- [j10]Vesa Lampu, Guixian Xu, Alberto Brihuega, Marko Kosunen, Vishnu Unnikrishnan, Jussi Ryynänen, Christian Fager, Mikko Valkama, Lauri Anttila:
Multilevel Outphasing With Over-the-Air Combining in Large Antenna Arrays. IEEE Trans. Commun. 71(12): 7347-7362 (2023) - [c22]Dhanashree Boopathy, Tze Hin Cheung, Andrei Spelman, Agnimesh Ghosh, Vesa Lampu, Lauri Anttila, Kari Stadius, Marko Kosunen, Jussi Ryynänen, Vishnu Unnikrishnan:
High-Precision Time-to-Digital Conversion for Calibration of Outphasing Radio Transmitters. NEWCAS 2023: 1-5 - 2022
- [j9]Kalle Spoof, Miikka Tenhunen, Vishnu Unnikrishnan, Kari Stadius, Marko Kosunen, Jussi Ryynänen:
True-Time-Delay Receiver IC With Reconfigurable Analog and Digital Beamforming. IEEE Access 10: 116375-116383 (2022) - [j8]Okko Järvinen, Vishnu Unnikrishnan, Ilia Kempi, Santeri Porrasmaa, Kari Stadius, Marko Kosunen, Jussi Ryynänen:
Energy-Efficient Cyclic-Coupled Ring Oscillator With Delay-Based Injection Locking. IEEE Trans. Circuits Syst. II Express Briefs 69(9): 3709-3713 (2022) - [c21]Kalle Spoof, Miikka Tenhunen, Vishnu Unnikrishnan, Kari Stadius, Marko Kosunen, Jussi Ryynänen:
A 0.8-6 GHz True-Time-Delay Beam-Nulling Receiver Front-End. ICECS 2022 2022: 1-4 - [c20]Ilia Kempi, Okko Järvinen, Marko Kosunen, Vishnu Unnikrishnan, Kari Stadius, Jussi Ryynänen:
A 0.9-Nyquist-Band Digital Timing Mismatch Correction for Time-Interleaved ADCs Achieving Delay Tuning Range of 0.12-Sample-Period. ISCAS 2022: 929-933 - [c19]Okko Järvinen, Vishnu Unnikrishnan, Ilia Kempi, Kari Stadius, Marko Kosunen, Jussi Ryynänen:
Design of Cyclic-Coupled Ring Oscillators with Guaranteed Maximal Phase Resolution. ISCAS 2022: 1453-1456 - [c18]Miikka Tenhunen, Kalle Spoof, Vishnu Unnikrishnan, Kari Stadius, Marko Kosunen, Jussi Ryynänen:
A 2 GS/s 9-bit Time-Interleaved SAR ADC with Overlapping Conversion Steps. NEWCAS 2022: 35-39 - [c17]Agnimesh Ghosh, Andrei Spelman, Tze Hin Cheung, Dhanashree Boopathy, Vishnu Unnikrishnan, Vesa Lampu, Guixian Xu, Lauri Anttila, Kari Stadius, Marko Kosunen, Jussi Ryynänen:
Reconfigurable Signal Processing and DSP Hardware Generator for 5G Transmitters. NorCAS 2022: 1-7 - 2021
- [j7]Okko Järvinen, Vishnu Unnikrishnan, Waqas Siddiqui, Teuvo Korhonen, Kimmo Koli, Kari Stadius, Marko Kosunen, Jussi Ryynänen:
A 100-750 MS/s 11-Bit Time-to-Digital Converter With Cyclic-Coupled Ring Oscillator. IEEE Access 9: 48147-48156 (2021) - [j6]Vishnu Unnikrishnan, Okko Järvinen, Waqas Siddiqui, Kari Stadius, Marko Kosunen, Jussi Ryynänen:
Data Conversion With Subgate-Delay Time Resolution Using Cyclic-Coupled Ring Oscillators. IEEE Trans. Very Large Scale Integr. Syst. 29(1): 203-214 (2021) - [c16]Vesa Lampu, Guixian Xu, Lauri Anttila, Alberto Brihuega, Marko Kosunen, Vishnu Unnikrishnan, Jussi Ryynänen, Mikko Valkama:
Energy-Efficient Array Transmitters Through Outphasing and Over-the-Air Combining. ACSCC 2021: 608-615 - 2020
- [j5]Ilia Kempi, Nouman Ahmed, Andreas Hammer, Olaitan Olabode, Vishnu Unnikrishnan, Marko Kosunen, Jussi Ryynänen:
Resilient flow control for wireless data streaming in inductively coupled medical implants. Microprocess. Microsystems 72 (2020) - [j4]Olaitan Olabode, Marko Kosunen, Vishnu Unnikrishnan, Tommi Palomäki, Tomi Laurila, Kari Halonen, Jussi Ryynänen:
Time-Based Sensor Interface for Dopamine Detection. IEEE Trans. Circuits Syst. 67-I(10): 3284-3296 (2020) - [j3]Kalle Spoof, Vishnu Unnikrishnan, Mahwish Zahra, Kari Stadius, Marko Kosunen, Jussi Ryynänen:
True-Time-Delay Beamforming Receiver With RF Re-Sampling. IEEE Trans. Circuits Syst. 67-I(12): 4457-4469 (2020) - [c15]Vishnu Unnikrishnan, Okko Järvinen, Kari Stadius, Marko Kosunen, Jussi Ryynänen:
Injection Locking of Ring Oscillators with Digitally Controlled Delay Modulation. ISCAS 2020: 1-4
2010 – 2019
- 2019
- [c14]Yury Antonov, Mikko Valkama, Marko Kosunen, Jussi Ryynänen, Mahwish Zahra, Kari Stadius, Zahra Khonsari, Ilia Kempi, Toni Miilunpalo, Juha Inkinen, Vishnu Unnikrishnan, Lauri Anttila:
A Delay-Based LO Phase-Shifting Generator for a 2-5GHz Beamsteering Receiver in 28nm CMOS. ESSCIRC 2019: 389-392 - [c13]Olaitan Olabode, Marko Kosunen, Vishnu Unnikrishnan, Tommi Palomäki, Tomi Laurila, Kari Halonen, Jussi Ryynänen:
A Sensor Interface for Neurochemical Signal Acquisition. MWSCAS 2019: 390-393 - 2018
- [c12]Mark Vesterbacka, Vishnu Unnikrishnan:
Ring Counters as Phase Accumulator in VCO-Based ADCs. ICECS 2018: 109-112 - [c11]Olaitan Olabode, Antti Ontronen, Vishnu Unnikrishnan, Marko Kosunen, Jussi Ryynänen:
A VCO-based ADC with Relaxation Oscillator for Biomedical Applications. ICECS 2018: 861-864 - [c10]Yury Antonov, Mahwish Zahra, Kari Stadius, Zahra Khonsari, Nouman Ahmed, Ilia Kempi, Juha Inkinen, Vishnu Unnikrishnan, Jussi Ryynänen:
A 3-43ps time-delay cell for LO phase-shifting in 1.5-6.5GHz beamsteering receiver. NEWCAS 2018: 57-60 - [c9]Ilia Kempi, Nouman Ahmed, Andreas Hammer, Olaitan Olabode, Vishnu Unnikrishnan, Marko Kosunen, Jussi Ryynänen:
A Low-Power Hardware Stack for Continuous Data Streaming from Telemetry Implants. NORCAS 2018: 1-6 - [c8]Olaitan Olabode, Vishnu Unnikrishnan, Ilia Kempi, Andreas Hammer, Marko Kosunen, Jussi Ryynänen:
A Configurable Hysteresis Comparator for Asynchronous Sigma-Delta Modulators. NORCAS 2018: 1-4 - 2017
- [j2]Vishnu Unnikrishnan, Mark Vesterbacka:
Mitigation of Sampling Errors in VCO-Based ADCs. IEEE Trans. Circuits Syst. I Regul. Pap. 64-I(7): 1730-1739 (2017) - 2016
- [b1]Vishnu Unnikrishnan:
Design of VCO-based ADCs. Linköping University, Sweden, 2016 - [c7]Vishnu Unnikrishnan, Mark Vesterbacka, Atila Alvandpour:
VCO-based ADCs for IoT applications. ISIC 2016: 1-4 - [c6]Vishnu Unnikrishnan, Mark Vesterbacka:
Mixed-Signal Design Using Digital CAD. ISVLSI 2016: 6-11 - [c5]Vishnu Unnikrishnan, Mark Vesterbacka:
Linearization of VCO-based ADCs using asynchronous sigma-delta modulation. MWSCAS 2016: 1-4 - [c4]Vishnu Unnikrishnan, Mark Vesterbacka:
Design of a VCO-based ADC in 28 nm CMOS. NORCAS 2016: 1-4 - 2015
- [c3]Vishnu Unnikrishnan, Mark Vesterbacka:
Linearization of synthesizable VCO-based ADCs using delta modulation. ECCTD 2015: 1-4 - [c2]Vishnu Unnikrishnan, Srinivasa Rao Pathapati, Mark Vesterbacka:
A fully synthesized all-digital VCO-based analog-to-digital converter. NORCAS 2015: 1-4 - [c1]Vishnu Unnikrishnan, Mark Vesterbacka:
A NAND gate based standard cell VCO for use in synthesizable ADCs. NORCAS 2015: 1-4 - 2014
- [j1]Vishnu Unnikrishnan, Mark Vesterbacka:
Time-Mode Analog-to-Digital Conversion Using Standard Cells. IEEE Trans. Circuits Syst. I Regul. Pap. 61-I(12): 3348-3357 (2014)
Coauthor Index
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