Journal ArticleDOI
Quasi-Optical Mode Converter for a 0.42-THz TE 26 Mode Pulsed Gyrotron Oscillator
TLDR
A quasi-optical (QO) mode converter for a 0.42-THz, TE26 mode, pulsed gyrotron is designed, fabricated, and tested as discussed by the authors.Abstract:
A quasi-optical (QO) mode converter for a 0.42-THz, TE26 mode, pulsed gyrotron is designed, fabricated, and tested. Based on the geometric optics principle, vector diffraction theory, and the iterative Stratton–Chu method, a computer code is developed to design and optimize the QO mode converter. The scalar Gaussian mode content is about 93.7%, which agrees well with that obtained by the electromagnetic simulation software. The preliminary experiment of the 0.42-THz, TE26 mode QO mode converter shows that a well-focused Gaussian-like beam with 90.4% scalar Gaussian mode content has been observed on the output window by using an infrared video camera. The experimental results agree well with the theoretical prediction.read more
Citations
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Journal ArticleDOI
Quasi-Optical Mode Converter for a 0.42 THz TE 17,4 Mode Pulsed Gyrotron Oscillator
TL;DR: A quasi-optical mode converter for a 0.42 THz, TE17,4 mode pulsed gyrotron oscillator is designed, fabricated and tested in this paper.
Journal ArticleDOI
Poynting Vector Method for Reflector Beam Shaping
TL;DR: In this article, a reflector beam shaping method based on the Poynting vector tracing method is employed to analyze the procedure of beam propagation and reflection, which brings significant advantage over existing beam shaping methods.
ReportDOI
High-power microwave transmission systems for electron-cyclotron-resonance plasma heating
TL;DR: In this article, a two-dimensional Vlasov antenna system for a 110 GHz TE sub 15,2 mode gyrotron was designed and fabricated for possible use at General Atomics.
Improved method for analyzing quasi-optical launchers
TL;DR: An improved method for analyzing the radiation characteristic of the quasi-optical launcher is presented in this paper, where the launcher is decomposed into an open-ended waveguide and a helical cut according to the proposed method.
Proceedings ArticleDOI
Quasi-Optical Mode Converter for a 0.42 THz TE17,4 Gyrotron
TL;DR: A quasi-optical mode converter for a 0.42 THz, TE17,4 mode pulsed gyrotron oscillator is designed, fabricated and tested in this paper.
References
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Electromagnetic wave theory
TL;DR: A first year graduate text on electromagnetic field theory emphasizing mathematical approaches, problem solving and physical interpretation is presented in this article, where guidance propagation, radiation, and scattering of electromagnetic waves are discussed.
Journal ArticleDOI
Passive high-power microwave components
Manfred Thumm,W. Kasparek +1 more
TL;DR: In this article, the authors present state-of-the-art passive high-power microwave components for applications in microwave systems for RF plasma generation and heating, plasma diagnostics, plasma and microwave materials processing, spectroscopy, communication, radar ranging and imaging, and for drivers of next generation high-field-gradient electron-positron linear colliders.
Journal ArticleDOI
Characteristics and applications of fast-wave gyrodevices
Kevin Felch,B.G. Danly,Howard Roberts Jory,K.E. Kreischer,W. Lawson,Baruch Levush,Richard J. Temkin +6 more
TL;DR: The development of gyro-oscillators for fusion experiments has led to the utilization of the devices in several industrial applications, such as ceramic sintering and metal joining as mentioned in this paper.