Stable 2.4 GHz Radio Frequency Transmission Based on Phase Modulation
- Resource Type
- Conference
- Authors
- Liu, Chenxia; Liu, Tao; Jiang, Tianwei; Yu, Song
- Source
- 2022 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS) European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS), 2022 Joint Conference of the. :1-2 Apr, 2022
- Subject
- Aerospace
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Radio frequency
Time-frequency analysis
Frequency modulation
Phase modulation
RF signals
Europe
Intensity modulation
frequency transfer
phase modulation
frequency stability
- Language
- ISSN
- 2327-1949
This paper presents the system for stable radio frequency (RF) transfer with phase modulation. The phase modulator is not biased, which eliminates the bias drifting problem existing in intensity-modulation-based RF transfer systems. The phase modulation to intensity modulation (PM-to-IM) conversion is realized by using dispersive fiber. Phase variation of the transmitted RF signal is compensated by utilizing passive compensation method. A 2.4 GHz RF signal is transmitted via 125 km single mode fiber (SMF) link. The measured standard Allan deviation (ADEV) of the stable RF transmission system is 3.66×10 − 13 @1 s and 2.26×10 −16 @10000 s, which is superior to that of the reference cesium clock.