Some recent achievements in 200GHz klystron, gyro-multipliers and mm,sub-mm and terahertz amplifiers
There is a demand for sources and particularly amplifiers in the range 94 GHz up to 1THz. This is driven by several applications. There is also a need for higher power amplifiers than have hitherto been available in this frequency range. Several approaches to meeting this need are briefly reviewed here. Some examples taken from ongoing research at Strathclyde University and Queen Mary College University of London are used as illustrations, although there are several groups working very productively in this field. Most of the research on vacuum electronic amplifiers tends to start at the low frequency end, ~ 94GHz and then extends the technology and the concepts to hundreds of GHz with a view to reaching THz frequencies using some of these technologies. The examples outlined include (1) a small-scale pseudospark discharge that is being investigated as the electron beam source for a klystron operating at a frequency of 94 GHz with the aim of developing this to 200GHz and beyond. (2) a broadband gyro-TWA amplifier working at the second harmonic within the 90-100GHz range (3) mm, sub-mm and THz Cherenkov sources based on a surface-field cavity.
A.D.R.Phelps C.W.Robertson L.Fisher L.Zhang D.Li X.Chen A.W.Cross W.He K.Ronald D.Bowes H.Yin C.G.Whyte I.S.Konoplev A.R.Young
SUPA Department of Physics, University of Strathclyde, Glasgow, G4 ONG, UK Department of Electronic Engineering, Queen Mary University of London, London, E1 4NS, UK.
国际会议
The 3rd China-Europe Workshop on Millimetre Waves and Terahertz Technologies(第三届中欧毫米波与太赫兹技术研讨会)
北京
英文
14-25
2010-09-23（万方平台首次上网日期，不代表论文的发表时间）