Double Corrugated Waveguide for Ka-Band Traveling Wave Tube

Paoloni, Claudio; Mineo, Mauro; Henry, M.; Huggard, P. G.

doi:10.1109/ted.2015.2480535

Cited by 27 publications

(23 citation statements)

References 12 publications

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“…The proposed model has been compared with CST-PS [6]. The results for a Ka-Band DCW-TWT [4] are considered, where the model describes well the beam wave interaction for most of the frequency band. The comparison of the output power ( Fig.…”

Section: Resultsmentioning

confidence: 99%

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Lagrangian large signal model for double corrugated waveguide

Waring

Paoloni

2018

2018 IEEE International Vacuum Electronics Conference (IVEC)

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A novel code based on non-linear Lagrangian formulation of beam wave interaction in traveling wave tubes is presented, modified for non-rotationally symmetric slow wave structures, such as the double corrugated waveguide. By including axial variations in the electric field along the period of the structure, as well as radial and angular variations and a model for the space charge forces in the double corrugated waveguide, a code capable of describing the behavior of the double corrugated waveguide is written.

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Section: Resultsmentioning

confidence: 99%

“…In the following, the approach to model the differing effects of space charge and field distribution in the double corrugated waveguide (DCW)-TWT are described. A comparison of the result with Ka-Band DCW TWT simulated by 3D Particle in Cell code will be shown [4].…”

Section: Introductionmentioning

confidence: 99%

Lagrangian large signal model for double corrugated waveguide

Waring

Paoloni

2018

2018 IEEE International Vacuum Electronics Conference (IVEC)

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“…In the case of BWOs, it can further help reduce the overall cost, as regular replacement of the SWS is anticipated [1], [2].…”

Section: Filter Block Fabricationmentioning

confidence: 99%

“…Multiple commercial and scientific applications in the millimetre-wave and THz frequency ranges require powerful oscillators in the form of Backward Wave Oscillators (BWOs) [1], and as the use of this portion of the spectrum is expanded, the need for frequency filtration would increase.…”

Section: Introductionmentioning

confidence: 99%

Low-cost method for waveguide device components fabrication at 220 – 325 GHz

Doychinov

Steenson

Abadi

et al. 2016

2016 IEEE International Conference on Microwave and Millimeter Wave Technology (ICMMT)

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Abstract-This work explores a rapid design and manufacturing approach to realize complex 3D pillar type filter and transmission line structures for applications in the 220 − 325 GHz range and which cannot be economically reproduced by conventional machining processes or present rapid prototyping methods. The significance of this investigation is that at submillimetre-wave or THz frequencies, where the waveguide features are less than 100µm and the skin depths are less than 200nm, the exact conductor shape and surface roughness have a significant electrical effect and any variations result in an important disagreement between the modelled and measured characteristics. This is a proof of concept validation of the rapid manufacturing approach and is aimed at paving the way to a range of THz passive waveguide components, where the availability and cost of such components is typically prohibitive and where the surface roughness is minimized and highly reproducible. Using this approach the fabrication times can be as rapid as a few days and can yield many hundreds of highly reproducible millimetre scale components.

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“…These power generation requirements can be readily met by Backward Wave Oscillators (BWOs) [1]. The double-corrugated waveguide [2] has been proved as an effective Slow Waveguide Structure (SWS) in the THz range.…”

Section: Introductionmentioning

confidence: 99%