A full-range all-pass variable phase shifter for multiple antenna receivers. - Hossein Zarei; Allan Ecker; Jinho Park 006; David J. Allstot (ISCAS (3), 2005)

A digital method for phase noise measurement. - Allan Ecker; Kenneth Blakkan; Mani Soma (ITC, 2012)

A method for phase noise extraction from data communication. - Allan Ecker; Mani Soma (VTS, 2014)