Coaxial-waveguide gyrotron amplifier operating with high power and ultrahigh gain in Millimeter and submillimeter waves

A coaxial-waveguide gyrotron-traveling wave amplifier is proposed, which may be suitable for the operation in the spectrum of the short millimeter and submillimeter waves with good mode selectivity, high power, and ultrahigh gain. An example is presented in terms of the linear gyrokinetics and nonli...

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Bibliographic Details
Published in:IEEE transactions on plasma science 2004-06, Vol.32 (3), p.981-986
Main Authors: Zhang, S.-C., Ouyang, Z.-B., Qiu, C.-R., Zhang, H.-B., Jin, J.-B.
Format: Article
Language:English
Subjects:
Coaxial components
Cyclotrons
Eigenvalues and eigenfunctions
Equations
Frequency
Gyrotrons
High power amplifiers
Magnetic fields
Masers
Oscillators
Simulation
Theory
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Summary:A coaxial-waveguide gyrotron-traveling wave amplifier is proposed, which may be suitable for the operation in the spectrum of the short millimeter and submillimeter waves with good mode selectivity, high power, and ultrahigh gain. An example is presented in terms of the linear gyrokinetics and nonlinear simulations. Theoretical results show that tens of kilowatts with ultrahigh gain up to 67 dB might be achieved for the operation of the coaxial-waveguide mode TE/sub 28,16/ in the fundamental cyclotron harmonic at the frequency of 140 GHz. The power enhancement by a tapered magnetic field is discussed.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2004.828876