title: Introduction to the special issue on the 2011 Joint IEEE International Frequency Control Symposium and European Frequency and Time Forum.
abstract: The 8 invited and 17 contributed papers in this special issue focus on the following topical areas covered at the 2011 Joint IEEE International Frequency Control Symposium and European Frequency and Time Forum, held in San Francisco, California: 1) Materials and Resonators; 2) Oscillators, Synthesizers, and Noise; 3) Microwave Frequency Standards; 4) Sensors and Transducers; 5) Timekeeping and Time and Frequency Transfer; and 6) Optical Frequency Standards.
authors.affiliation: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA.
authors.forename: Eric
authors.initials: E
authors.lastname: Burt
authors.forename: Patrick
authors.initials: P
authors.lastname: Gill