Department of Electronics and Nanoengineering

Jussi Ryynänen Group

Aalto University research infrastructure for ECD offers state of the art design tools for integrated circuit design and high-quality measuring tools. Latest nanoscale CMOS technologies enable seamless collaboration with industry partners in research and development of different kinds integrated circuits for data communications and sensor applications. In addition, there is a lot of in-house collaboration with different research groups inside Aalto University, e.g. in the fields of antennas, wireless sensors and wireless communication.

Key activities within the research of prof. Ryynänen include IC design to meet the requirements of modern technology, e.g. 5G radio transmitter, designed for the small fifth generation base stations. The ECD unit attracts serious amount of external funding, mainly from Academy of Finland, the Finnish Funding Agency for Innovation (Tekes), European Union research programs, and various industrial and corporate partners.

Special focus in the group is Advanced architectures for RF radio transceivers research produces innovative solutions to improve the communication capacity and energy efficiency of emerging radio receiver generations. Circuit solutions aim to fully exploit the benefits of modern CMOS scaling by seeking solutions based on digital-intensive and digitally assisted, nonlinearity and interference tolerant RF-circuits.

Latest publications

A 100–750 MS/s 11-Bit Time-to-Digital Converter With Cyclic-Coupled Ring Oscillator

Okko Jarvinen, Vishnu Unnikrishnan, Waqas Siddiqui, Teuvo Korhonen, Kimmo Koli, Kari Stadius, Marko Kosunen, Jussi Ryynanen 2021 IEEE Access


Vishnu Unnikrishnan, Okko Järvinen, Siddiqui Waqas, Marko Kosunen, Kari Stadius, Jussi Ryynänen 2021


Vishnu Unnikrishnan, Okko Järvinen, Siddiqui Waqas, Marko Kosunen, Kari Stadius, Jussi Ryynanen 2021

Data Conversion With Subgate-Delay Time Resolution Using Cyclic-Coupled Ring Oscillators

Vishnu Unnikrishnan, Okko Jarvinen, Waqas Siddiqui, Kari Stadius, Marko Kosunen, Jussi Ryynanen 2021 IEEE Transactions on Very Large Scale Integration (VLSI) Systems

Design of a 20-80 GHz down-conversion mixer for 5G wireless communication with 22nm CMOS

Henri Hurskainen, Rehman Akbar, Kari Stadius, Aarno Parssinen 2020 2nd 6G Wireless Summit 2020

Resilient flow control for wireless data streaming in inductively coupled medical implants

Ilia Kempi, Nouman Ahmed, Andreas Hammer, Olaitan Olabode, Vishnu Unnikrishnan, Marko Kosunen, Jussi Ryynänen 2020 Microprocessors and Microsystems

A Class-D Tri-Phasing CMOS Power Amplifier with an Extended Marchand-Balun Power Combiner

Mikko Martelius, Jussi Ryynanen, Kari Stadius, Jerry Lemberg, Enrico Roverato, Tero Nieminen, Yury Antonov, Lauri Anttila, Mikko Valkama, Marko Kosunen 2020 IEEE Transactions on Microwave Theory and Techniques

Time-based Sensor Interface for Dopamine Detection

Olaitan Olabode, Marko Kosunen, Vishnu Unnikrishnan, Tommi Palomäki, Tomi Laurila, Kari Halonen, Jussi Ryynänen 2020 IEEE Transactions on Circuits and Systems - I: Regular Papers

A 1.5-5-GHz Integrated RF Transmitter Front End for Active Matching of an Antenna Cluster

Ali Saleem, Kari Stadius, Jari-Matti Hannula, Anu Lehtovuori, Marko Kosunen, Ville Viikari, Jussi Ryynänen 2020 IEEE Transactions on Microwave Theory and Techniques

A 30-GHz Switched-Capacitor Power Amplifier for 5G SoCs

Ali Raza Saleem, Kari Stadius, Marko Kosunen, Lauri Anttila, Mikko Valkama, Jussi Ryynanen 2020 ICECS 2020 - 27th IEEE International Conference on Electronics, Circuits and Systems, Proceedings
More information on our research in the Research database.
Research database

Jussi Ryynänen 
e-mail: jussi.ryynanen at
tel. +358 50 384 17 20

Postal address:
Department of Electronics and Nanoengineering
Aalto University School of Electrical Engineering
P.O. Box 15500, 00076 Aalto, Finland

Visiting address:
Maarintie 8, 02150 Espoo

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