High order mode oscillation in a terahertz photonic-band-gap multibeam reflex klystron

TM 330 -like higher order mode was excited in a multibeam reflex klystron oscillator employing a hybrid photonic-band-gap (PBG) cavity using a three-dimensional particle-in-cell simulation. One side of a conventional metal cavity was replaced with a dielectric photonic crystal lattice to form a hybr...

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Bibliographic Details
Published in:Applied physics letters 2008-11, Vol.93 (21), p.211104-211104-3
Main Authors: Jang, Kyu-Ha, Jeon, Seok-Gy, Kim, Jung-Il, Won, Jong-Hyo, So, Jin-Kyu, Bak, Seung-Ho, Srivastava, Anurag, Jung, Sun-Shin, Park, Gun-Sik
Format: Article
Language:English
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Summary:TM 330 -like higher order mode was excited in a multibeam reflex klystron oscillator employing a hybrid photonic-band-gap (PBG) cavity using a three-dimensional particle-in-cell simulation. One side of a conventional metal cavity was replaced with a dielectric photonic crystal lattice to form a hybrid PBG resonator that uses lattice band-gap effects resulting in a more uniform field of a higher order mode as well as the exclusion of some conventional-cavity-type modes, thereby reducing mode competition. Simulated reflex klystron in the hybrid PBG cavity produced an output power much higher than could be delivered in a conventional metal cavity.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3037026