Phase-locking of strongly coupled relativistic magnetrons

Phase-locking of two strongly coupled S-band relativistic magnetrons in the gigawatt regime was achieved. A single high-voltage pulser drives the two relativistic magnetrons connected by a short waveguide of length approximately=n lambda /2. Equal power flows in both directions between the magnetron...

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Bibliographic Details
Published in:IEEE transactions on electromagnetic compatibility 1992-08, Vol.34 (3), p.235-241
Main Authors: Sze, H., Smith, R.R., Benford, J.N., Harteneck, B.D.
Format: Article
Language:English
Subjects:
Applied sciences
Coherence
Couplings
Density measurement
Electronic tubes, masers
Electronics
Exact sciences and technology
Load flow
Magnetic field measurement
Magnetrons
Master-slave
Microwave oscillators
Phase measurement
Power measurement
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Summary:Phase-locking of two strongly coupled S-band relativistic magnetrons in the gigawatt regime was achieved. A single high-voltage pulser drives the two relativistic magnetrons connected by a short waveguide of length approximately=n lambda /2. Equal power flows in both directions between the magnetrons. The time required to lock is approximately=7 ns. Phase-locking lasts for approximately=15-20 ns. Phase-locking in the pi and 2 pi modes is demonstrated by direct phase measurement. The RMS peak power is approximately=1.6 GW in the pi -mode and 400 MW in the 2 pi -mode. Power density enhancement due to source coherence is directly measured in the radiation field. Locked phase measurements agree with phenomenological modeling of the experiment using a simple van Der Pol model.< >
ISSN:0018-9375
1558-187X
DOI:10.1109/15.155835