Class D CMOS power amplifier with on/off logic for a multilevel outphasing transmitter. - Mikko Martelius; Kari Stadius; Jerry Lemberg; Tero Nieminen; Enrico Roverato; Marko Kosunen; Jussi Ryynänen; Lauri Anttila; Mikko Valkama (ISCAS, 2016)

Digital Interpolating Phase Modulator for Wideband Outphasing Transmitters. - Jerry Lemberg; Marko Kosunen; Enrico Roverato; Mikko Martelius; Kari Stadius; Lauri Anttila; Mikko Valkama; Jussi Ryynänen (IEEE Trans. Circuits Syst. I Regul. Pap., 2016)

13.5 A 0.35-to-2.6GHz multilevel outphasing transmitter with a digital interpolating phase modulator enabling up to 400MHz instantaneous bandwidth. - Marko Kosunen; Jerry Lemberg; Mikko Martelius; Enrico Roverato; Tero Nieminen; Mikko Englund; Kari Stadius; Lauri Anttila; Jorma Pallonen; Mikko Valkama; Jussi Ryynänen (ISSCC, 2017)

Design and Implementation of a Wideband Digital Interpolating Phase Modulator RF Front-End. - Jerry Lemberg; Marko Kosunen; Tero Nieminen; Enrico Roverato; Mikko Martelius; Kari Stadius; Jussi Ryynänen; Lauri Anttila; Mikko Valkama (ISCAS, 2018)

Spectral Effects of Discrete-Time Amplitude Levels in Digital-Intensive Wideband Radio Transmitters. - Mikko Martelius; Kari Stadius; Jerry Lemberg; Enrico Roverato; Marko Kosunen; Jussi Ryynänen; Lauri Anttila; Mikko Valkama (ISCAS, 2018)

Tri-Phasing Modulation for Efficient and Wideband Radio Transmitters. - Jerry Lemberg; Mikko Martelius; Marko Kosunen; Enrico Roverato; Kari Stadius; Lauri Anttila; Mikko Valkama; Jussi Ryynänen (IEEE Trans. Circuits Syst. I Regul. Pap., 2018)

A High-Speed DSP Engine for First-Order Hold Digital Phase Modulation in 28-nm CMOS. - Enrico Roverato; Marko Kosunen; Jerry Lemberg; Mikko Martelius; Kari Stadius; Lauri Anttila; Mikko Valkama; Jussi Ryynänen (IEEE Trans. Circuits Syst. II Express Briefs, 2018)

A 1.5-1.9-GHz All-Digital Tri-Phasing Transmitter With an Integrated Multilevel Class-D Power Amplifier Achieving 100-MHz RF Bandwidth. - Jerry Lemberg; Mikko Martelius; Enrico Roverato; Yury Antonov; Tero Nieminen; Kari Stadius; Lauri Anttila; Mikko Valkama; Marko Kosunen; Jussi Ryynänen (IEEE J. Solid State Circuits, 2019)

A 3.5-GHz Digitally-Controlled Open-Loop Fractional-N Frequency Divider in 28-nm CMOS. - Tze Hin Cheung; Mikko Martelius; Yury Antonov; Rehman Akbar; Jussi Ryynänen; Aarno Pärssinen; Kari Stadius (ISCAS, 2020)