Title :
Suppression of high order mode oscillation and parasitic RF output in multi-beam klystrons
Author :
Ding, Yaogen ; Zhang, Zhaochuan ; Shen, Bin ; Ding, Haibin ; Sun, Xiaoxin
Author_Institution :
Inst. of Electron., Chinese Acad. of Sci., Beijing, China
Abstract :
The high order mode oscillation and parasitic RF output have serious influence on the normal operation and the purity of the output spectrum of MBKs. A new method to suppress the high order modes will be introduced in this paper. By putting selective absorbing material on coupling slot of the double-gap coupling cavity, all the high order modes with π mode field structure can be suppressed effectively. This method has been applied to C-band MBKs successfully.
Keywords :
coupled circuits; klystrons; oscillations; radiofrequency integrated circuits; coupling slot; double-gap coupling cavity; high order mode oscillation; multibeam klystrons; parasitic RF output; selective absorbing material; Cavity resonators; Ceramics; Couplings; Microwave circuits; Oscillators; Radio frequency; Multi-Beam Klystrons (MBKs); high order mode oscillation; parasitic RF output; selective absorbing material;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2011 IEEE International
Conference_Location :
Bangalore
Print_ISBN :
978-1-4244-8662-5
DOI :
10.1109/IVEC.2011.5747075
