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Title: Precision vector control of a superconducting RF cavity driven by an injection locked magnetron

Journal Article · · Journal of Instrumentation
 [1];  [1];  [1];  [1]
  1. Fermi National Accelerator Laboratory, Batavia, IL (United States)
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The technique presented in this paper enables the regulation of both radio frequency amplitude and phase in narrow band devices such as a Superconducting RF (SRF) cavity driven by constant power output devices i.e. magnetrons [1]. The ability to use low cost high efficiency magnetrons for accelerator RF power systems, with tight vector regulation, presents a substantial cost savings in both construction and operating costs - compared to current RF power system technology. An operating CW system at 2.45 GHz has been experimentally developed. Vector control of an injection locked magnetron has been extensively tested and characterized with a SRF cavity as the load. Amplitude dynamic range of 30 dB, amplitude stability of 0.3% r.m.s, and phase stability of 0.26 degrees r.m.s. has been demonstrated.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1209251
Report Number(s):
FERMILAB-TM-2590-AD; arXiv eprint number arXiv:1502.04118; TRN: US1500610
Journal Information:
Journal of Instrumentation, Vol. 10, Issue 03; ISSN 1748-0221
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

References (5)

High-power, high efficiency, injection-locked, secondary-emission magnetron journal June 1992
Phase locking of high‐power microwave oscillators journal January 1989
Noise Performance of Frequency- and Phase-Locked CW Magnetrons Operated as Current-Controlled Oscillators journal September 2005
Frequency and phase modulation performance of an injection-locked CW magnetron journal July 2006
Phase locking of two long-pulse, high-power magnetrons journal January 1994

Cited By (1)

Investigation of magnetron injection locking and cascaded locking by solid-state microwave power source journal July 2019

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