Picture of person typing on laptop with programming code visible on the laptop screen

World class computing and information science research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

Explore

Experimental results on microwave pulse compression using helically corrugated waveguide

McStravick, M. and Samsonov, S. V. and Ronald, K. and Mishakin, S. V. and He, W. and Denisov, G. G. and Whyte, C. G. and Bratman, V. L. and Cross, A. W. and Young, A. R. and MacInnes, P. and Robertson, C. W. and Phelps, A. D. R. (2010) Experimental results on microwave pulse compression using helically corrugated waveguide. Journal of Applied Physics, 108 (5). -. ISSN 0021-8979

Full text not available in this repository. Request a copy from the Strathclyde author

Abstract

The paper presents new results on the development of a method to generate ultrahigh-power short-microwave pulses by using a known principle of compression (reduction in pulse duration accompanying with increase in pulse amplitude) of a frequency-swept wave packet propagating through a dispersive medium. An oversized circular waveguide with helical-corrugations of its inner surface ensures an eigenwave with strongly frequency dependent group velocity far from cutoff. These dispersive properties in conjunction with high rf breakdown strength and low Ohmic losses make a helically corrugated waveguide attractive for increasing microwave peak power. The experiments performed at kilowatt power levels, demonstrate that an X-band microwave pulse of 80 ns duration with a 5% frequency sweep can be compressed into a 1.5 ns pulse having 25 times higher peak power by optimizing the frequency modulation of the input wave packet.