MEMS-microfabricated components for millimeter-wave and THz TWTs

Welter, J.; Booske, John H.; Jiang, Hongrui; Bhattacharjee, S.; Limbach, S.; Weide, Daniel van der; Zhang, N.; Scharer, J.E.; Genack, M.; Mashal, Abdur Rehman; Kory, C.L.; Ives, L.; Read, Michael

doi:10.1109/ivelec.2004.1316303

Cited by 4 publications

(1 citation statement)

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“…Since the original device presentation, the physics of the RWA have been investigated by a number of different groups [12]- [17]. However, only a few actual device designs have been examined [18]- [20] and only one experimentally tested [4].…”

Section: Introductionmentioning

confidence: 99%

Metamaterial-Enhanced Resistive Wall Amplifiers: Theory and Particle-in-Cell Simulations

Rowe

Booske

Behdad

2015

IEEE Trans. Plasma Sci.

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The resistive wall amplifier (RWA), a vacuum electron device, has been theoretically predicted to provide extremely high gain. However, the properties of practical, naturally available bulk materials for the resistive wall support structure significantly reduce achievable gain. This paper investigates the capabilities of a metamaterial-enhanced RWA (ME-RWA). We predict that using epsilon-negative metamaterials can yield high gains that closely approach the idealized performance limit. ME-RWAs may exhibit bandwidths and gains much higher than many commercially available vacuum electron devices.

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