Phase stable RF transport system

Details Phase stable RF transport system Phase stable RF transport system

1991-02-19

1992-06-30

Mottola, Steven

Wave transmission lines and networks

Pilot current-controlled systems

333134, 328155, H04B 310

Patent

active

051267004

ABSTRACT:
An RF transport system delivers a phase-stable RF signal to a load, such as an RF cavity of a charged particle accelerator. A circuit generates a calibration signal at an odd multiple frequency of the RF signal where the calibration signal is superimposed with the RF signal on a common cable that connects the RF signal with the load. Signal isolating diplexers are located at both the RF signal source end and load end of the common cable to enable the calibration to be inserted and extracted from the cable signals without any affect on the RF signal. Any phase shift in the calibration signal during traverse of the common cable is then functionally related to the phase shift in the RF signal. The calibration phase shift is used to control a phase shifter for the RF signal to maintain a stable RF signal at the load.

REFERENCES:
patent: 3790906 (1974-02-01), Fletcher et al.
patent: 4427953 (1984-01-01), Hudspeth et al.

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