|
DRUM >
Theses and Dissertations from UM >
UM Theses and Dissertations >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/1903/3228
|
| Title: | Analyses of advanced concepts in multi-stage gyro-amplifiers and startup in high-power gyro-oscillators |
| Authors: | Sinitsyn, Oleksandr V |
| Advisors: | Granatstein, Victor L |
| Department/Program: | Electrical Engineering |
| Type: | Dissertation |
| Sponsors: | Digital Repository at the University of Maryland
University of Maryland (College Park, Md.) |
| Keywords: | Engineering, Electronics and Electrical (0544)
Physics, Radiation (0756)
Physics, Elementary Particles and High Energy (0798)
microwave generation and amplification, wave-particle interaction, fast-wave devices, gyrotron |
| Issue Date: | 6-Dec-2005 |
| Abstract: | Gyrotrons are well recognized sources of high-power coherent electromagnetic radiation. The power that gyrotrons can radiate in the millimeter- and submillimeter-wavelength regions exceeds the power of classical microwave tubes by many orders of magnitude. In this work, the author considers some problems related to the operation of gyro-devices and methods of their solution. In particular, the self-excitation conditions for parasitic backward waves and effect of distributed losses on the small-signal gain of gyro-TWTs are analyzed. The corresponding small-signal theory describing two-stage gyro-traveling-wave tubes (gyro-TWTs) with the first stage having distributed losses is presented. The theory is illustrated by using it for the description of operation of a Ka-band gyro-TWT designed at the Naval Research Laboratory. Also, the results of nonlinear studies of this tube are presented and compared with the ones obtained by the use of MAGY, a multi-frequency, self-consistent code develo... |
| URI: | http://hdl.handle.net/1903/3228 |
| Appears in Collections: | Electrical & Computer Engineering Theses and Dissertations
UM Theses and Dissertations
|
Files in This Item:
| File |
Description |
Size | Format | No. of Downloads |
|---|
| umi-umd-3054.pdf | | 2734Kb | Adobe PDF | 144 | View/Open |
|
Show full item record
All items in DRUM are protected by copyright, with all rights reserved.
|
