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The use of an overmoded circular waveguide with helical corrugations (HC) of its inner surface as a dispersive medium enables compression of monotonously frequency modulated microwave pulses. The region of operating parameters (frequency range, input pulse duration, sweep interval) in conjunction with low reflection and high RF electric strength makes the HC-waveguide compressor attractive for increasing...
Waveguide with a helical corrugation of the inner surface has the desirable properties of optimised dispersion, operation far from cut-off and high breakdown field strength which make it an excellent medium for passive pulse compression. New compression measurements at both milli-watt and kilowatt powers using an optimised frequency modulation of the input pulse will be presented and discussed.
Cylindrical waveguide with a helical corrugation on the inner surface has proven an effective dispersive medium for the compression of smoothly frequency modulated microwave pulses. This paper presents the results of experiments where ~5.6kW, X-band (8.0GHz to 12.5GHz), microwave pulses of 80ns duration and 5% frequency modulation were compressed into 1.5ns pulses with 25 times higher peak power
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