Fig. 1. Coordinate system of BPM probe

Fig. 2. Principle diagram of pilot tone

Fig. 3. Architecture diagram of DBPM electronics system based on pilot tone

Fig. 4. Block diagram of pilot tone generation circuit

Fig. 5. Block diagram of PTC circuit

Fig. 6. Block diagram of RF signal processing

Fig. 7. Algorithm block diagram of pilot tone

Fig. 8. Picture of PTC circuit

Fig. 9. Spectrum diagram of PTC circuit

Fig. 10. Frequency response test result of RF circuit

Fig. 11. Linearity test result of RF circuit

Fig. 12. Test result of PTC circuit

Fig. 13. Test result of ALC circuit

Fig. 14. Clock jitter measurement result of pilot tone

Fig. 15. Test results of beam channels with temperature

Fig. 16. [in Chinese]

Fig. 16. Test results of normalized channels with temperature

Fig. 17. Test results of long-term stability

Fig. 18. Test results of real-time resolution

Fig. 19. Test result of pilot tone switch