Second harmonic suppression in S-band traveling wave tube tapers Gehrmann, Elke Birtel, Philip Dürr, Wolfgang André, Frédéric Jacob, Arne 2015 - TUHH Open Research
Second harmonic suppression in helix traveling-wave tubes Gehrmann, Elke Jacob, Arne Birtel, Philip Dürr, Wolfgang 2013 - TUHH Open Research
Filter Helices for Traveling Wave Tubes Gehrmann, Elke Jacob, Arne Birtel, Philip Dürr, Wolfgang 2012 - TUHH Open Research