A novel multi-pin rectangular waveguide slow-wave structure based backward wave amplifier at 340 GHz

Zhang Kai-Chun†^a),^b), Qi Zhong-Kuo^a),^b), Yang Zhao-Long^a),^b)

Schematic diagrams of multi-pin rectangular waveguide SWS: (a) 3D model with multi beams, (b) longitudinal view, (c) multi-pin grating SWS transverse view.