A DDS synthesizer with time domain interpolator. - Timo Rahkonen; Harri Eksyma; Heikki Repo (ICECS, 1999)

Programmable switched capacitor 4-tap FIR filter. - Heikki Repo; Timo Rahkonen (ESSCIRC, 2003)

Low complexity UWB circuit transceiver architecture for low cost sensor tag systems. - Lucian-Vasile Stoica; Sakari Tiuraniemi; Heikki Repo; Alberto Rabbachin; Ian J. Oppermann (PIMRC, 2004)

An ultra wideband low complexity circuit transceiver architecture for sensor networks. - Lucian-Vasile Stoica; Sakari Tiuraniemi; Heikki Repo; Ian J. Oppermann (ISCAS (1), 2005)

An ultrawideband system architecture for tag based wireless sensor networks. - Lucian-Vasile Stoica; Alberto Rabbachin; Heikki Olavi Repo; Teemu Sakari Tiuraniemi; Ian J. Oppermann (IEEE Trans. Veh. Technol., 2005)