Design of a Third-Harmonic Gyrotron Oscillator Using a Photonic Crystal Cavity
- Title
- Design of a Third-Harmonic Gyrotron Oscillator Using a Photonic Crystal Cavity
- Authors
- Joo, YD; Park, GS; Kim, DH; Kim, JI; Jeon, SG; Han, ST; Jung, SS; Kim, JU; null
- Date Issued
- 2009-07
- Publisher
- JAPAN SOCIETY APPLIED PHYSICS
- Abstract
- A photonic crystal cavity of the transverse electric (TE) mode is designed to support the third harmonic interaction with a 30 kev-0.7 A axis-encircling electron beam at the operating frequency of the Ka-band, where a magnetic field of 0.38 T is used. The lattice parameters of a square lattice of alumina rods are determined to fit the TE(301)-like mode in the photonic-band-gap spectral region, and the output signal of a fundamental waveguide mode is conveniently coupled to a conventional waveguide. A particle-in-cell code simulation predicts the single mode operation with the output power of concerning 2.9 kW, corresponding with an efficiency rating of 14%. This scheme can be extended to a n-th harmonic gyrotron using the rectangular cavity of a TE(m01)-like mode. (C) 2009 The Japan Society of Applied Physics
- Keywords
- ELECTRON-CYCLOTRON MASER; OVERMODED GYROTRON; MODE COMPETITION; BAND; OPERATION; AMPLIFIER
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/28307
- DOI
- 10.1143/JJAP.48.074502
- ISSN
- 0021-4922
- Article Type
- Article
- Files in This Item:
- There are no files associated with this item.
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