A Broadband Extended Interaction Klystron Based on Multimode Operation

A novel broadband multimode extended interaction klystron (EIK) circuit is proposed to overcome the bandwidth limitation of the conventional single-mode EIK. The uniform-gap and stagger-gap extended interaction circuits are comparatively studied; the multimode operation is demonstrated; stability an...

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Veröffentlicht in:IEEE transactions on electron devices 2022-02, Vol.69 (2), p.802-807
Hauptverfasser: Chang, Zhiwei, Shu, Guoxiang, Tian, Yanyan, He, Wenlong
Format: Artikel
Sprache:eng
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Zusammenfassung:A novel broadband multimode extended interaction klystron (EIK) circuit is proposed to overcome the bandwidth limitation of the conventional single-mode EIK. The uniform-gap and stagger-gap extended interaction circuits are comparatively studied; the multimode operation is demonstrated; stability and feasibility of this multimode circuit are analyzed. A −3-dB bandwidth of 860 MHz (2.51% relative bandwidth) in Ka -band is predicted by a particle-in-cell simulation. Meanwhile, comparative study on the uniform-gap and stagger-gap circuits also explains the working mechanism of the conventional single-mode ( {\pi } mode) stagger-gap circuit.
ISSN:0018-9383
1557-9646
DOI:10.1109/TED.2021.3136829