Materials, Resonators & Resonator Circuits ​

Oscillators, Synthesizers, Noise & Circuit Techniques 

Microwave Frequency Standards & Applications ​

Sensors & Transducers ​

Timekeeping, Time & Frequency Transfer, GNSS Applications ​

Optical Frequency Standards & Applications ​

High-Precision Measurement & Metrology ​

Quantum Technologies with Frequency Control ​