Authors are invited to submit abstracts of recent and original work of interest to the frequency control communities in the following topics:
Group 1: Materials, Resonators, & Resonator Circuits
A. Fundamental Properties of Materials
B. Micro and Meso-scale-Fabrication Technology for Resonators and Filters
C. Theory, Design, and Performance of Resonators and Filters, including BAW, FBAR, MEMS, NEMS,  SAW, and Novel Devices
D. Reconfigurable Frequency Control Circuits, e.g., Arrays, Channelizers
Group 2: Oscillators, Synthesizers, Noise, & Circuit Techniques
A. Oscillators – Crystal, BAW, MEMS, SAW, DR, WGM, OE, Quantum, YIG, Planar Resonator, and Novel Devices
B. Heterogeneously Integrated Miniature Oscillators, e.g. - Single-Chip, Environment Compensation
C. Synthesizers, Optical to Microwave and RF Conversion with Combs, and Multi-Resonator Oscillators
D. Noise Phenomena, Stability, and Aging
E. Circuit Measurements, Analysis, and Specifications - Frequency and Phase-Noise Metrology and Nonlinear Circuit Analysis
F. Digital Electronics and Systems - Applications in Time and Frequency Domain
G. Emerging Trends – Metameterial Möbius Resonator Oscillators, NCOs, Super-Regenerative Oscillators and Receivers, Spintronics,
     Software Defined Radio, and Energy Harvesting
Group 3: Microwave Frequency Standards
A. Microwave Atomic Frequency Standards
B. Atomic Clocks for Space Applications
C. Vapor-cell Atomic Clocks and Other Cell-Based Sensors and Instruments
D. Atomic Interferometers
E. Fundamental Physics Tests with Clocks, and Other Applications
Group 4: Sensors & Transducers
A. Resonant Chemical Sensors
B. Resonant Physical Sensors
C. Vibratory Gyroscopes & Magnetometers
D. BAW, SAW, FBAR, and MEMS Sensors
E. Transducers
F. Sensor Instrumentation
Group 5: Timekeeping, Time and Frequency Transfer, GNSS Applications
A. TAI, Time Scales, and Associated Algorithms
B. GNSS and Applications
C. Telecommunications Network Synchronization
D. Time and Frequency Transfer
E. Frequency and Time Distribution
F. Frequency and Time Calibration Services
Group 6: Optical Frequency Standards and Applications
A. Optical-Ion and Neutral-Atom Clocks
B. Optical Frequency Combs and Frequency Measurements
C. Ultra-Stable Laser Sources and Optical Frequency References
D. Ultra-Stable Frequency Transfer between Optical, Microwave, Terahertz, and XUV Domains
E. Fundamental Physics Tests with Accurate Optical Spectroscopy