Improvements in Broadband Performance of Mini-TWTs at e2v technologies

Ghosh, Tushar K.; Challis, A.J.; Tokeley, Anthony; Rushbrook, Kevin; Poston, Ian; Matthews, Ronald C.; Jacob, A.; Bowler, D.

doi:10.1109/ivelec.2007.4283202

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Second Harmonic Suppression1

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Cited by 3 publications

(2 citation statements)

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“…In a recent work, a theoretical study on its usefulness in improving the wideband performance was carried out [18]. The experimental performance of a multioctave band positively tapered helix mini-TWT was first demonstrated by Ghosh et al [19]. In this paper, the design strategy of such devices is elaborated upon and supported by further experimental results.…”

Section: Introductionmentioning

confidence: 82%

Improvements in Performance of Broadband Helix Traveling-Wave Tubes

Ghosh

Challis

Jacob

et al. 2008

IEEE Trans. Electron Devices

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Section: Introductionmentioning

confidence: 82%

Improvements in Performance of Broadband Helix Traveling-Wave Tubes

Ghosh

Challis

Jacob

et al. 2008

IEEE Trans. Electron Devices

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“…For the optimization purpose, the use of 1-D version of a large-signal interaction code is found by Ghosh [12,13] . The code allows multifrequency injection and is capable of generating data for different graphical outputs such as power growth, Applegate diagram, beam profile, etc.…”

Section: Second Harmonic Suppressionmentioning

confidence: 99%

Second Harmonic Suppression for Broadband Helix Traveling‐Wave Tubes Using the Phase Velocity Variation of Output Circuit

Zhang

Yang

2016

Chin. j. electron.

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Planar helix slow-wave structure with straight-edge connections in the presence of coplanar ground planes

Chua

Aditya

Shen

et al. 2011

2011 8th International Conference on Information, Communications &Amp; Signal Processing

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A planar helix slow-wave structure which has straightedge connections has been studied for traveling-wave tube applications. The effects of coplanar ground planes, on the dielectric surfaces which also contain the top and bottom inclined helix strips, are examined. The phase velocity and interaction impedance are studied for two possible planar helix configurations. The coplanar ground planes reduce the phase velocity near the cut-off frequency and hence provide a relatively flat phase velocity versus frequency curve. A planar helix with coplanar ground planes has been designed and it produces 118% of bandwidth, for ±5% phase velocity variation, with significant interaction impedance. All results are simulated using CST Microwave Studio eigenmode solver.

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Improvements in Broadband Performance of Mini-TWTs at e2v technologies

Cited by 3 publications

References 1 publication

Improvements in Performance of Broadband Helix Traveling-Wave Tubes

Improvements in Performance of Broadband Helix Traveling-Wave Tubes

Second Harmonic Suppression for Broadband Helix Traveling‐Wave Tubes Using the Phase Velocity Variation of Output Circuit

Planar helix slow-wave structure with straight-edge connections in the presence of coplanar ground planes

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