Abstract
The low beam voltage operation and the simple fabrication of meander lines make them a promising slow wave structure for the production of novel and low-cost traveling wave tubes for W-band satellite communications. However, the poor interaction of planar structures with a cylindrical beam has led to the investigation of alternative meander line configurations that could improve their performance. A novel slow wave structure based on adding pillars to a meander line for improving the interaction with a cylindrical electron beam is described. Simulations of the cold parameters and the large signal behavior are presented in the paper.
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