A Novel Technique for Real-Time Estimation and Compensation of Phase-Drift of RF Signals Transmitting Through Coaxial Cables

Phase-stabilized distribution of radio frequency (RF) signal is an essential requirement for many modern technological applications and advanced scientific experiments including clock synchronization or synchronization of distributed sensors. Coaxial cables are commonly used for the distribution of RF signal, but the phase of the RF signal is very much sensitive to the variation of ambient conditions, especially temperature variation. In this letter, we introduced a technique and verified with 10-MHz signal for real-time measurement of phase-drift due to varying ambient condition along with phase-stabilized RF signal transmission through the coaxial cables by active phase compensation.