4th IEEE International Conference on Vacuum Electronics, 2003

DOI: 10.1109/ivec.2003.1286271

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T-functions for exact solution of the boundary problem for irregular waveguides of gyrotrons and TWT including beyond cutoff waves

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Optimal Converters Structures1

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Cited by 4 publications

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“…The importance of taking into consideration cut-off TM 0m modes was confirmed [3]. The results without cut-off TM 0m modes are totally incorrect.…”

Section: Optimal Converters Structuresmentioning

confidence: 85%

TM0m Mode Converters for Relativistic Cherencov Amplifiers and Oscillators

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2007

2007 IEEE International Vacuum Electronics Conference

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The optimal structures of TM 0m -TM 0(m+1) mode converters on the periodic and arbitrary irregular sections of circular waveguides with the use of blockmatrix sweep techniques and minimization Nelder-Mead algorithm are simulated. IntroductionSymmetric TM 0m modes of high power relativistic Cherenkov amplifiers and oscillators have a relatively high radial index m. To excite such TM 0m modes at the system input one needs some types of TM 01 →TM 0m mode converters of high performance. The output also needs usually a chain of converters, because direct radiation of TM 0m mode into open space is resulted in undesirable 2m-lobe radiation. In that case the numerical modeling of effective TM 0m →TM 0m+1 and TM 0m+1 →TM 0m mode converters is an actual problem for high power devices.

“…The importance of taking into consideration cut-off TM 0m modes was confirmed [3]. The results without cut-off TM 0m modes are totally incorrect.…”

Section: Optimal Converters Structuresmentioning

confidence: 85%

TM0m Mode Converters for Relativistic Cherencov Amplifiers and Oscillators

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,

²

,

³

2007

2007 IEEE International Vacuum Electronics Conference

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The optimal structures of TM 0m -TM 0(m+1) mode converters on the periodic and arbitrary irregular sections of circular waveguides with the use of blockmatrix sweep techniques and minimization Nelder-Mead algorithm are simulated. IntroductionSymmetric TM 0m modes of high power relativistic Cherenkov amplifiers and oscillators have a relatively high radial index m. To excite such TM 0m modes at the system input one needs some types of TM 01 →TM 0m mode converters of high performance. The output also needs usually a chain of converters, because direct radiation of TM 0m mode into open space is resulted in undesirable 2m-lobe radiation. In that case the numerical modeling of effective TM 0m →TM 0m+1 and TM 0m+1 →TM 0m mode converters is an actual problem for high power devices.

Compound algorithms for simulation of electron devices with irregular waveguides

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et al. 2010

2010 20th International Crimean Conference "Microwave &Amp; Telecommunication Technology"

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Compounded algorithms for the simulation of the electron devices with irregular waveguides

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2011

2011 IEEE International Vacuum Electronics Conference (IVEC)

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The compounded methods for solution of the boundary problem for irregular waveguides with using carry and averaging statements are suggested.

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