Journal
IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS
Volume -, Issue -, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LMWT.2023.3326483
Keywords
Coaxial cable; frequency synchronization; phase compensation; radio frequency (RF) transmission
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Synchronous radio frequency signals are widely used in various applications and the stability of frequency synchronization is affected by phase fluctuations induced by the transmission medium. We propose a stable RF transmission solution using coaxial cable as the medium, where the phase fluctuations caused by the cable can be detected and compensated in real-time.
Synchronous radio frequency (RF) signals are essential for a number of applications including time and frequency metrology, coherent communications, and signal processing. The stability of frequency synchronization is vulnerable to phase fluctuations induced through in transmission link. To mitigate this effect, we propose a stable RF transmission solution using coaxial cable as the medium in short-distance frequency synchronization. The phase fluctuations caused by the coaxial cable are detected and compensated in real-time by a proportional-integral (PI) servo controller. Laboratory experiments performed through a 100-m coaxial cable confirmed the scheme and showed that compensating transmission-medium-induced fluctuations effectively improves the frequency synchronization stability. Laboratory experiments performed using a 100-m coaxial cable confirmed the scheme and demonstrated that compensating for fluctuations induced by the transmission medium effectively improves frequency synchronization stability.
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