Robert Tjoelker

Enrico Rubiola

Enrico Rubiola is a full professor with the Université de Franche Comté and a researcher with the CNRS FEMTO-ST Institute, Besancon, France, a member of the Observatory of Besancon, and an associated researcher at INRiM, the Italian institute of primary metrology in Torino.   In 2012, Enrico founded the Oscillator IMP project, a platform for the measurement of short-term frequency stability and AM/PM noise.  In 2013, he founded the European Frequency and Time Seminar (, a no-profit crash course in Time and Frequency, and he has been chairing and running it since.

Enrico’s primary interests are high-purity oscillators, AM and PM noise, noise in digital systems, time and frequency metrology, frequency synthesis, Allan variances, microwave photonics, precision electronics and instrumentation.  He is worldwide known for his innovative instruments for AM/PM noise measurement with ultimate sensitivity, –210 dBc/Hz and below, for the theory of the “Leeson effect,” for the theory of modern frequency counters (,   ), for dedicated signal-processing methods, and for hacking oscillators from the phase noise plots.  In 2018, Enrico received the IEEE W. G. Cady Award “for groundbreaking contributions” in the field.

A wealth of free articles, slideshows, and lectures are available on the Enrico’s home page

Scott Diddams

David Hume

Patrizia Tavella

Cecilia Clivati

Jean-Michel Friedt

Don Malocha

Donald C. Malocha is currently the CTO of Pegasense LLC, specializing in solid-state acoustic devices, wireless RF communications systems, and sensors. He is also Pegasus-Professor Emeritus in the Electrical and Computer Engineering Dept., University of Central Florida (UCF), Orlando. Don received a dual BS in electrical engineering (EE) and computer science (CS), an MS in EE, and Ph.D. degree in EE from the University of Illinois, Urbana. He was member of the technical staff (MTS) at Texas Instruments Corporate Research Laboratory, Mgr. of Advanced Product Development, Sawtek, and an MTS at Motorola. He has been a Visiting Scholar at the Swiss Federal Institute of Technology, Zurich (ETH), Switzerland, and the University of Linz, Austria. He is an Associate Editor of the IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS AND FREQUENCY CONTROL (UFFC), a UFFC AdCom Emeritus-member, and past-President of the IEEE UFFC Society. He is chair of IEC TC49 for piezoelectric dielectric and electrostatic devices and materials for frequency control standards. He has served on the Technical Program Committees of the IEEE International Ultrasonics Symposium, International Frequency Control Symposium, the IEEE Microwave Theory and Techniques Symposium, Sensors, and European Frequency and Time Forum. He is the 2004 UCF Distinguished Researcher and received the 2013 UCF Dean’s Research Professorship Award, the IEEE UFFC 2008 Distinguished Service Award, the 2005 J. Staudte Memorial Award, the 2000 IEEE Third Millennium Medal, and the 1998 Electronic Industries Association’s David P. Larsen Award. He has over 300 technical publications and 15 patents. Don is a Fellow of the Institute of Electrical & Electronics Engineers (IEEE).