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The parabolic equation (PE) method is derived from the wave equation, and it has been widely used to solve electromagnetic wave propagation problems. In recent years, it was realized that the PE method can also be applied to scattering problems. The PE method meets the demand for higher efficiency and accuracy at the same time when there are limited computational resources. In this paper, both co-polarized...
This paper proposes the design of a dual polarization frequency selective surface (FSS). The FSS displays a high transmission, wide operational band, excellent band edge transition and dual polarization. The bandwidth of the bandpass FSS is up to 2.1 GHz at 5.26 GHz resonant frequency. The FSS has a similar transmission coefficient for different polarisations, although the structure is not rotationally...
In this work, pulsed micro-discharges produced by dielectric barrier discharges (DBDs) with a sub-millimeter gap were electrically-characterized under ac voltage at 100 Hz and at 5 kHz. Ozone production was investigated for different discharge gap lengths and pressures. The aim of the work was to understand the statistics of filamentary current pulses and their relationship to the reduced electric...
Summary form only given. Terahertz radiation, which ranges from 0.1 THz to 10 THz, has received substantial interests in recent years. The conventional vacuum electronics technology has the potential to supply high enough powers to underpin many exciting and emerging THz applications. Klystrons have been designed to generate THz radiation. This vacuum device requires a very small sized RF circuit...
Breakdown walkout in high-voltage pLDMOS transistors on a thin epitaxial layer is observed and investigated by using ion implantation to vary the surface electric field in the drift region. Results show that the walkout is closely related to the surface field and can be reduced by determining the correct extent of ion implantation.<<ETX>>
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