Chip-to-chip communications using capacitive interconnects. - Olli Viitala; Jussi Ryynänen (ISCAS, 2010)

N-path gmC filter modeling and analysis for direct delta-sigma receiver. - Mikko Englund; Olli Viitala; Jussi Ryynänen; Kimmo Koli (NEWCAS, 2012)

Design tradeoffs in N-path GmC integrators for direct delta-sigma receivers. - Kim B. Ostman; Mikko Englund; Olli Viitala; Kari Stadius; Jussi Ryynänen; Kimmo Koli (ECCTD, 2013)

A 2.5-GHz 4.2-dB NF direct ΔΣ receiver with a frequency-translating integrator. - Mikko Englund; Kim B. Ostman; Olli Viitala; Mikko Kaltiokallio; Kari Stadius; Jussi Ryynänen; Kimmo Koli (ESSCIRC, 2014)

28.1 A programmable 0.7-to-2.7GHz direct ΔΣ receiver in 40nm CMOS. - Mikko Englund; Kim B. Östman; Olli Viitala; Mikko Kaltiokallio; Kari Stadius; Kimmo Koli; Jussi Ryynänen (ISSCC, 2014)

Characteristics of LNA Operation in Direct Delta-Sigma Receivers. - Kim B. Ostman; Mikko Englund; Olli Viitala; Kari Stadius; Kimmo Koli; Jussi Ryynänen (IEEE Trans. Circuits Syst. II Express Briefs, 2014)

Next-Generation RF Front-End Design Methods for Direct ΔΣ Receivers. - Kim B. Ostman; Mikko Englund; Olli Viitala; Kari Stadius; Kimmo Koli; Jussi Ryynänen (IEEE J. Emerg. Sel. Topics Circuits Syst., 2015)

A Programmable 0.7-2.7 GHz Direct ΔΣ Receiver in 40 nm CMOS. - Mikko Englund; Kim B. Ostman; Olli Viitala; Mikko Kaltiokallio; Kari Stadius; Kimmo Koli; Jussi Ryynänen (IEEE J. Solid State Circuits, 2015)

Analysis and Design of N-Path Filter Offset Tuning in a 0.7-2.7-GHz Receiver Front-End. - Kim B. Ostman; Mikko Englund; Olli Viitala; Mikko Kaltiokallio; Kari Stadius; Kimmo Koli; Jussi Ryynänen (IEEE Trans. Circuits Syst. I Regul. Pap., 2015)