%0 Journal Article %T A Compact Circular Waveguide Directional Coupler for High-Order Mode Vacuum Electronic Devices %A Zhu, Tao %A Fu, Wenjie %A Lu, Dun %A Pan, Yibo %A Li, Chuannan %A He, Lin %A Sun, Haoxuan %A Yan, Yang %J Electronics %V 13 %N 3 %@ 2079-9292 %D 2024-02-02 %I Multidisciplinary Digital Publishing Institute %~ DeepDyve