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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Chao-Hai Du Pu-Kun Liu |
| Copyright Year | 1973 |
| Abstract | A lossy dielectric-lined (DL) waveguide is inherent with excellent mode-selective-propagation ability. A millimeter-wave gyrotron-traveling-wave (gyro-TWT) amplifier based on such kind of waveguide is characterized with high stability. In this paper, the analytical expressions of the field components of the operating modes in the DL waveguide are obtained from the eigenequation, and the linear theory of electron-cyclotron-maser (ECM) instability in the DL waveguide is developed by employing the full-wave-interaction method. This linear theory takes the waveguide structure and the characteristics of the lossy dielectric material into consideration. It is capable of accurately calculating the ECM instability between a cyclotron harmonic and a circular polarized mode, as well as effectively predicting the linear stability of the DL-waveguide-based interaction system. The validity of the linear theory is verified via comparing with results obtained using a coherently developed self-consistent nonlinear theory. Numerical calculation reveals a series of interesting results. This paper provides specific guidance for future designs of millimeter-wave lossy dielectric-loaded gyro-TWTs. |
| Sponsorship | IEEE Nuclear and Plasma Sciences Society |
| Starting Page | 1219 |
| Ending Page | 1226 |
| Page Count | 8 |
| File Size | 802182 |
| File Format | |
| ISSN | 00933813 |
| Volume Number | 38 |
| Issue Number | 6 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-06-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Dielectric losses Waveguide theory Millimeter wave technology Waveguide components Electrochemical machining Millimeter wave circuits Circuit stability Dielectric materials Cyclotrons Polarization lossy dielectric Absolute instability gyrotron-traveling-wave (gyro-TWT) amplifier linear theory |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nuclear and High Energy Physics Condensed Matter Physics |
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