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)

(a) Transversal section of the SWS with measured points, (b) impedance at different position as a function of k_zd .