Zhiwei Chang;Wenli Shang;Zhong Cao;Guoxiang Shu;Yanyan Tian;Wenlong He
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A Single-Stage Multimode Extended Interaction Circuit
A Ka-band single-stage extended interaction circuit capable of multimode amplification is studied to overcome the bandwidth limitation of the conventional extended interaction circuits with single-mode amplification. High-frequency features, particle-in-cell (PIC) simulation, and experimental study related to the multimode amplification are presented. The feasibility of the multimode amplification is indicated in the high-frequency simulation; a −3-dB bandwidth of more than 600 MHz (1.80% relative −3-dB bandwidth) using multiple operating modes is predicted by the PIC simulation; reflection and transmission features are verified by the experimental study. Furthermore, the high-order modes and the structural parameter sensitivity are analyzed.
期刊介绍：
The scope covers all aspects of the theory and application of plasma science. It includes the following areas: magnetohydrodynamics; thermionics and plasma diodes; basic plasma phenomena; gaseous electronics; microwave/plasma interaction; electron, ion, and plasma sources; space plasmas; intense electron and ion beams; laser-plasma interactions; plasma diagnostics; plasma chemistry and processing; solid-state plasmas; plasma heating; plasma for controlled fusion research; high energy density plasmas; industrial/commercial applications of plasma physics; plasma waves and instabilities; and high power microwave and submillimeter wave generation.
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