Kari Stadius

Publication Activity (10 Years)

Years Active: 1994-2024
Publications (10 Years): 48

Top Topics

Quantization Noise

Data Conversion

Integrated Circuit

Wireless Communication

Top Venues

IEEE Trans. Circuits Syst. I Regul. Pap.

Publications

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) (2024)
Santeri Porrasmaa, Okko Järvinen, Ilia Kempi, Kari Stadius, Marko Kosunen, Jussi Ryynänen
Analysis and Design of Constant-Slope Voltage-to-Time Converters. ISCAS (2024)
Kimi Jokiniemi, Kaisa Ryynänen, Joni Vähä, Kari Stadius, Jussi Ryynänen
Analysis of Current-Commutating Passive and Active Mixers for mmWave Applications. ISCAS (2024)
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)
Kimi Jokiniemi, Kaisa Ryynänen, Joni Vähä, Elmo Kankkunen, Kari Stadius, Jussi Ryynänen
Active Wideband 55-100-GHz Downconversion Mixer in 22-nm FDSOI CMOS. NorCAS (2023)
Kaisa Ryynänen, Veeti Lahtinen, Santeri Porrasmaa, Kari Stadius, Marko Kosunen, Jussi Ryynänen
An Automated EM-Simulation Environment with Parameterized Layout Generation for Microwave Integrated Circuits. NorCAS (2023)
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)
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) (2022)
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)
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 (2022)
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)
Ali Raza Saleem, Saeed Naghavi, Mahwish Zahra, Kari Stadius, Marko Kosunen, Lauri Anttila, Mikko Valkama, Jussi Ryynänen
A 6-20 GHz 400-MHz Modulation-Bandwidth CMOS Transmitter IC. ICECS 2022 (2022)
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)
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)
Tze Hin Cheung, Jussi Ryynänen, Aarno Pärssinen, Kari Stadius
A 5.4-GHz 2/3/4-Modulus Fractional Frequency Divider Circuit in 28-nm CMOS. ISCAS (2021)
Rehman Akbar, Rana Azhar Shaheen, Timo Rahkonen, Cheung Tze, Kari Stadius, Aarno Pärssinen
A 38.5-to-60.5 GHz LNA with Wideband Combiner Supporting Cartesian Beamforming Architecture. ESSCIRC (2021)
Kaisa Ryynänen, Kari Stadius, Andreas Hammer, Mikko Varonen, Henrik Forsten, Tero Kiuru, Ville Viikari, Jussi Ryynänen
A Compact Low-Power 140-GHz Low-Noise Amplifier with 19-dB Gain and 7-dB NF. ISCAS (2021)
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) (2021)
Ali Raza Saleem, Kari Stadius, Jari-Matti Hannula, Anu Lehtovuori, Marko Kosunen, Ville Viikari, Jussi Ryynänen
A Transmitter IC with Supply Tuning for Frequency-Reconfigurable Antenna Cluster. MWSCAS (2021)
Guixian Xu, Vesa Lampu, Marko Kosunen, Kari Stadius, Jussi Ryynänen, Mikko Valkama, Lauri Anttila
Quantized Polar Transmitters for Power Efficient Massive MIMO Systems. IEEE Wirel. Commun. Lett. 10 (4) (2021)
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 (2021)
Tze Hin Cheung, Mikko Martelius, Yury Antonov, Rehman Akbar, Jussi Ryynänen, Aarno Pärssinen, Kari Stadius
A 3.5-GHz Digitally-Controlled Open-Loop Fractional-N Frequency Divider in 28-nm CMOS. ISCAS (2020)
Ali Raza Saleem, Kari Stadius, Marko Kosunen, Lauri Anttila, Mikko Valkama, Jussi Ryynänen
A 30-GHz Switched-Capacitor Power Amplifier for 5G SoCs. ICECS (2020)
Vishnu Unnikrishnan, Okko Järvinen, Kari Stadius, Marko Kosunen, Jussi Ryynänen
Injection Locking of Ring Oscillators with Digitally Controlled Delay Modulation. ISCAS (2020)
Andreas Hammer, Ilia Kempi, Olaitan Olabode, Kari Stadius, Jussi Ryynänen, Marko Kosunen
Sub-1 V Output-Capacitor-Less Low-Dropout Regulator with Two Compensation Amplifiers for Enhanced Power Supply Rejection. ISCAS (2020)
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. (12) (2020)
Henri Hurskainen, Rehman Akbar, Kari Stadius, Aarno Pärssinen
Design of a 20-80 GHz Down-Conversion Mixer for 5G Wireless Communication with 22nm CMOS. 6G SUMMIT (2020)
Faizan Ul Haq, Mikko Englund, Kim B. Östman, Kari Stadius, Marko Kosunen, Kimmo Koli, Jussi Ryynänen
Quantization noise upconversion effects in mixer-first direct delta-sigma receivers. Int. J. Circuit Theory Appl. 47 (12) (2019)
Jerry Lemberg, Mikko Martelius, Enrico Roverato, Yury Antonov, Tero Nieminen, Kari Stadius, Lauri Anttila, Mikko Valkama, Marko Kosunen, Jussi Ryynänen
A 1.5-1.9-GHz All-Digital Tri-Phasing Transmitter With an Integrated Multilevel Class-D Power Amplifier Achieving 100-MHz RF Bandwidth. IEEE J. Solid State Circuits 54 (6) (2019)
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)
Rehman Akbar, Eric A. M. Klumperink, Nuutti Tervo, Muhammad Yasir Javed, Kari Stadius, Timo Rahkonen, Aarno Pärssinen
A Wideband IF Receiver Module for Flexibly Scalable mmWave Beamforming Combining and Interference Cancellation. ESSCIRC (2019)
Yury Antonov, Markus Törmänen, Jussi Ryynänen, Aarno Pärssinen, Kari Stadius
A 20-60GHz Digitally Controlled Composite Oscillator for 5G. NGCAS (2018)
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)
Jerry Lemberg, Mikko Martelius, Marko Kosunen, Enrico Roverato, Kari Stadius, Lauri Anttila, Mikko Valkama, Jussi Ryynänen
Tri-Phasing Modulation for Efficient and Wideband Radio Transmitters. IEEE Trans. Circuits Syst. I Regul. Pap. (9) (2018)
Mikko Martelius, Kari Stadius, Jerry Lemberg, Enrico Roverato, Marko Kosunen, Jussi Ryynänen, Lauri Anttila, Mikko Valkama
Spectral Effects of Discrete-Time Amplitude Levels in Digital-Intensive Wideband Radio Transmitters. ISCAS (2018)
Enrico Roverato, Marko Kosunen, Jerry Lemberg, Mikko Martelius, Kari Stadius, Lauri Anttila, Mikko Valkama, Jussi Ryynänen
A High-Speed DSP Engine for First-Order Hold Digital Phase Modulation in 28-nm CMOS. IEEE Trans. Circuits Syst. II Express Briefs (12) (2018)
Faizan Ul Haq, Mikko Englund, Yury Antonov, Kari Stadius, Marko Kosunen, Jussi Ryynänen, Kim B. Östman, Kimmo Koli
Full-Duplex Wireless Transceiver Self-Interference Cancellation Through FD-SOI Buried-Gate Signaling. ISCAS (2018)
Faizan Ul Haq, Kim B. Ostman, Mikko Englund, Kari Stadius, Marko Kosunen, Kimmo Koli, Jussi Ryynänen
A common-gate common-source low noise amplifier based RF front end with selective input impedance matching for blocker-resilient receivers. Int. J. Circuit Theory Appl. 46 (8) (2018)
Jerry Lemberg, Marko Kosunen, Tero Nieminen, Enrico Roverato, Mikko Martelius, Kari Stadius, Jussi Ryynänen, Lauri Anttila, Mikko Valkama
Design and Implementation of a Wideband Digital Interpolating Phase Modulator RF Front-End. ISCAS (2018)
Mikko Englund, Faizan Ul Haq, Kari Stadius, Marko Kosunen, Kim B. Ostman, Kimmo Koli, Jussi Ryynänen
A Systematic Design Method for Direct Delta-Sigma Receivers. IEEE Trans. Circuits Syst. I Regul. Pap. (8) (2018)
Yury Antonov, Kari Stadius, Jussi Ryynänen
A charge limiting and redistribution method for delay line locking in multi-output clock generation. ISCAS (2017)
Faizan Ul Haq, Mikko Englund, Kari Stadius, Marko Kosunen, Jussi Ryynänen, Kimmo Koli, Kim B. Ostman
A wideband blocker-resilient direct ΔΣ receiver with selective input-impedance matching. ISCAS (2017)
Yury Antonov, Kari Stadius, Marko Kosunen, Jussi Ryynänen
Open-loop all-digital delay line with on-chip calibration via self-equalizing delays. ECCTD (2017)
Marko Kosunen, Jerry Lemberg, Mikko Martelius, Enrico Roverato, Tero Nieminen, Mikko Englund, Kari Stadius, Lauri Anttila, Jorma Pallonen, Mikko Valkama, Jussi Ryynänen
13.5 A 0.35-to-2.6GHz multilevel outphasing transmitter with a digital interpolating phase modulator enabling up to 400MHz instantaneous bandwidth. ISSCC (2017)
Faizan Ul Haq, Mikko Englund, Kari Stadius, Marko Kosunen, Jussi Ryynänen, Kimmo Koli, Kim B. Ostman
A wideband blocker-resilient RF front-end with selective input-impedance matching for direct-ΔΣ-receiver architectures. NORCAS (2016)
Mikko Martelius, Kari Stadius, Jerry Lemberg, Tero Nieminen, Enrico Roverato, Marko Kosunen, Jussi Ryynänen, Lauri Anttila, Mikko Valkama
Class D CMOS power amplifier with on/off logic for a multilevel outphasing transmitter. ISCAS (2016)
Jerry Lemberg, Marko Kosunen, Enrico Roverato, Mikko Martelius, Kari Stadius, Lauri Anttila, Mikko Valkama, Jussi Ryynänen
Digital Interpolating Phase Modulator for Wideband Outphasing Transmitters. IEEE Trans. Circuits Syst. I Regul. Pap. (5) (2016)
Jaakko Marttila, Markus Allén, Marko Kosunen, Kari Stadius, Jussi Ryynänen, Mikko Valkama
Reference receiver enabled digital cancellation of nonlinear out-of-band blocker distortion in wideband receivers. GlobalSIP (2016)
Kim B. Ostman, Mikko Englund, Olli Viitala, Kari Stadius, Kimmo Koli, Jussi Ryynänen
Next-Generation RF Front-End Design Methods for Direct ΔΣ Receivers. IEEE J. Emerg. Sel. Topics Circuits Syst. 5 (4) (2015)
Tero Tikka, Kari Stadius, Jussi Ryynänen, Mikko Kaltiokallio
A 0.8-3 GHz mixer-first receiver with on-chip transformer balun in 65-nm CMOS. ESSCIRC (2015)
Kim B. Ostman, Mikko Englund, Olli Viitala, Mikko Kaltiokallio, Kari Stadius, Kimmo Koli, Jussi Ryynänen
Analysis and Design of N-Path Filter Offset Tuning in a 0.7-2.7-GHz Receiver Front-End. IEEE Trans. Circuits Syst. I Regul. Pap. (1) (2015)
Mikko Englund, Kim B. Ostman, Olli Viitala, Mikko Kaltiokallio, Kari Stadius, Kimmo Koli, Jussi Ryynänen
A Programmable 0.7-2.7 GHz Direct ΔΣ Receiver in 40 nm CMOS. IEEE J. Solid State Circuits 50 (3) (2015)
Yury Antonov, Tero Tikka, Kari Stadius, Jussi Ryynänen
All-digital phase-locked loop in 40 nm CMOS for 5.8 Gbps serial link transmitter. ECCTD (2015)
Mikko Englund, Kim B. Ostman, Olli Viitala, Mikko Kaltiokallio, Kari Stadius, Jussi Ryynänen, Kimmo Koli
A 2.5-GHz 4.2-dB NF direct ΔΣ receiver with a frequency-translating integrator. ESSCIRC (2014)
Mikko Englund, Kim B. Östman, Olli Viitala, Mikko Kaltiokallio, Kari Stadius, Kimmo Koli, Jussi Ryynänen
28.1 A programmable 0.7-to-2.7GHz direct ΔΣ receiver in 40nm CMOS. ISSCC (2014)
Enrico Roverato, Marko Kosunen, Jerry Lemberg, Kari Stadius, Jussi Ryynänen
RX-Band Noise Reduction in All-Digital Transmitters With Configurable Spectral Shaping of Quantization and Mismatch Errors. IEEE Trans. Circuits Syst. I Regul. Pap. (11) (2014)
Kim B. Ostman, Mikko Englund, Olli Viitala, Kari Stadius, Kimmo Koli, Jussi Ryynänen
Characteristics of LNA Operation in Direct Delta-Sigma Receivers. IEEE Trans. Circuits Syst. II Express Briefs (2) (2014)
Tero Tikka, Kari Stadius, Jussi Ryynänen, Martti Voutilainen
A 1.2 - 6.4 GHz clock generator with a low-power DCO and programmable multiplier in 40-nm CMOS. ISCAS (2014)
Kim B. Ostman, Mikko Englund, Olli Viitala, Kari Stadius, Jussi Ryynänen, Kimmo Koli
Design tradeoffs in N-path GmC integrators for direct delta-sigma receivers. ECCTD (2013)
Tapio Rapinoja, Kari Stadius, Jussi Ryynänen
A 0.3-to-8.5GHz frequency synthesizer based on digital period synthesis. ESSCIRC (2013)
Enrico Roverato, Marko Kosunen, Jerry Lemberg, Kari Stadius, Jussi Ryynänen, Petri Eloranta, Risto Kaunisto, Aarno Pärssinen
A programmable DSP front-end for all-digital 4G transmitters. NEWCAS (2013)
Enrico Roverato, Marko Kosunen, Jerry Lemberg, Tero Nieminen, Kari Stadius, Jussi Ryynänen, Petri Eloranta, Risto Kaunisto, Aarno Pärssinen
A configurable sampling rate converter for all-digital 4G transmitters. ECCTD (2013)
Liangge Xu, Kari Stadius, Jussi Ryynänen
An All-Digital PLL Frequency Synthesizer With an Improved Phase Digitization Approach and an Optimized Frequency Calibration Technique. IEEE Trans. Circuits Syst. I Regul. Pap. (11) (2012)
Johanna Anteroinen, Wonjae Kim, Kari Stadius, Juha Riikonen, Harri Lipsanen, Jussi Ryynänen
Electrical properties of CVD-graphene FETs. NORCHIP (2011)
Tapio Rapinoja, Liangge Xu, Kari Stadius, Jussi Ryynänen
Implementation of all-digital wideband RF frequency synthesizers in 65-nm CMOS technology. ISCAS (2011)
Kari Stadius, Mikko Kaltiokallio, Jussi Ollikainen, Tuomas Parnanen, Ville Saari, Jussi Ryynänen
A 0.7 - 2.6 GHz high-linearity rf front-end for cognitive radio spectrum sensing. ISCAS (2011)
Liangge Xu, Saska Lindfors, Kari Stadius, Jussi Ryynänen
A 2.4-GHz Low-Power All-Digital Phase-Locked Loop. IEEE J. Solid State Circuits 45 (8) (2010)
Liangge Xu, Kari Stadius, Jussi Ryynänen
A wide-band digitally controlled ring oscillator. ISCAS (2010)
Liangge Xu, Saska Lindfors, Kari Stadius, Jussi Ryynänen
A 2.4-GHz low-power all-digital phase-locked loop. CICC (2009)
Liangge Xu, Kari Stadius, Jussi Ryynänen
A low-power wide-band digital frequency synthesizer for cognitive radio sensor units. ESSCIRC (2009)
Liangge Xu, Kari Stadius, Tapio Rapinoja, Jussi Ryynänen
Agile frequency synthesizer for cognitive radios. ECCTD (2009)
Tapio Rapinoja, Kari Stadius, Jussi Ryynänen
Spectral purity analysis of integer-N PLL. ICECS (2009)
Mikko Kaltiokallio, Ville Saari, Tapio Rapinoja, Kari Stadius, Jussi Ryynänen, Saska Lindfors, Kari Halonen
A WiMedia UWB receiver with a synthesizer. ESSCIRC (2008)
Jouni Kaukovuori, Kari Stadius, Jussi Ryynänen, Kari Halonen
Analysis and Design of Passive Polyphase Filters. IEEE Trans. Circuits Syst. I Regul. Pap. (10) (2008)
Kari Stadius, Kari Halonen
Development of 4-GHz flip-chip VCO module. ISCAS (3) (2005)
Arto Malinen, Kari Stadius, Kari Halonen
Characteristics and modeling of a broadband transmission-line transformer. ISCAS (4) (2004)
Kari Stadius, Arto Malinen, Petri Järviö, Kari Halonen, Petteri Paatsila
A cable-modem RF tuner. ESSCIRC (2003)
Kari Stadius, Arto Malinen, Petteri Paatsila, Kari Halonen
A broadband upconverter unit for double-conversion receivers. ISCAS (2) (2003)
Kari Stadius, Petri Järviö, Kari Halonen
A novel BJT output stage for SAW drivers. ICECS (2001)
Kari Stadius, Risto Kaunisto, Veikko Porra
Monolithic tunable capacitors for RF applications. ISCAS (1) (2001)
Kari Stadius, Petri Järviö, Petteri Paatsila, Kari Halonen
Image-reject receivers with image-selection functionality. ISCAS (4) (2001)
Rami Ahola, Kari Stadius, Kari Halonen
Design of a fully integrated 2 GHz CMOS frequency synthesizer. ISCAS (2) (1999)
Rami Ahola, Kari Stadius, Kari Halonen
A fully integrated 2 GHz frequency synthesizer. ICECS (1999)
Kari Stadius, Risto Kaunisto, Veikko Porra
Varactor diodeless harmonic VCOs for GHz-range applications. ICECS (1999)
Risto Kaunisto, Kari Stadius, Veikko Porra
A 3 GHz silicon-BJT active resonator and filter. ICECS (1998)
Kari Stadius, Risto Kaunisto, Veikko Porra
A high frequency harmonic VCO with an artificial varactor. ICECS (1998)
Risto Kaunisto, Petteri Alinikula, Kari Stadius
Q-Enhancing Technique for High Speed Active Inductors. ISCAS (1994)