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Design and experiments of a five-fold helically corrugated waveguide for microwave pulse compression

Zhang, Liang and Mishakin, Sergey V. and He, Wenlong and Samsonov, Sergey V. and Cross, Adrian W. and Denisov, Gregory G. and McStravick, Michael and Bratman, Vladimir L. and Whyte, Colin G. and Robertson, Craig W. and Young, Alan R. and Yin, Huabi and Ronald, Kevin and Macinnes, Philip and Phelps, Alan D.R. (2015) Design and experiments of a five-fold helically corrugated waveguide for microwave pulse compression. In: IRMMW-THz 2015. IEEE, Piscataway, NJ., pp. 1-2. ISBN 9781479982721

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    Abstract

    Metal waveguide can be used as a dispersive medium to convert long duration, lower power pulses into short, higher peak power pulses. This provides an advanced method to generate radiation with gigawatts power in the millimeter and sub-millimeter wavelength range by compressing a megawatt level long duration pulse. In this paper, a five-fold helically corrugated waveguide operating in X-band was designed and constructed. The experiments conducted show that a 5.75 kW average power microwave pulse with a 6% bandwidth and duration of 80 ns can be compressed into a 144.8 kW, 1.6 ns pulse with a power compression factor of 25.2.