A Ka-band planar helix slow-wave structure (SWS) which is suitable for microfabrication is
proposed and its design is described in this paper. A wideband design is achieved by using …

It has been widely reported that carbon nanotubes (CNTs) exhibit superior field emission
(FE) properties due to their high aspect ratios and unique structural properties. Among the …

A defect photonic crystal waveguide (DPCW) is presented as a slow-wave structure (SWS)
for terahertz (THz) traveling-wave tube (TWT). Due to the characteristics of DPCW, the mode …

A novel slow wave structure (SWS) consisting in a planar helix with straight-edge
connections, operating in the K-band with a very low cathodic voltage, is herein proposed …

Wideband power combining of four W-band microfabricated traveling-wave tubes (TWTs) is
presented. The proposed TWTs are based on a planar helix slow-wave structure (SWS) with …

This paper introduces a novel∞-shaped (lemniscatical) helix slow-wave structure (LH-SWS)
to increase the achievable output power of the helix traveling wave tube amplifiers. This is …

A bandwidth broadening and voltage reducing method for the azimuthal supported angular
log-periodic strip meander line slow-wave structure has been proposed. By means of the …

This paper describes a fan-shaped metal-loaded helix slow-wave structure (SWS) to
develop ultra-wideband traveling-wave tube with low gain fluctuation. The electromagnetic …

A novel slow wave structure (SWS) consisting of a planar helix with straight-edge
connections, operating over the K-band with a very low cathodic voltage, is herein proposed …

In this paper, a simplified model for dual helix cold characteristics (phase velocity and
interaction impedance) analysis is presented. The model comprises a conventional circular …