Some investigations into the properties of a double-stream, microwave amplifier
Institution: | McGill University |
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Department: | Department of Physics. |
Degree: | MS. |
Year: | 1950 |
Keywords: | Physics. |
Record ID: | 1503283 |
Full text PDF: | http://digitool.library.mcgill.ca/thesisfile122619.pdf |
The original theory of J.R. Pierce and A.V. Haeff pertaining to the problem of the existence of waves within a narrow beam of electrons of two different average velocities, is discussed. The theory is then extended to the case of wide beams separated by a finite distance. A special case of this theory is then considered, that of a wide pencil of two superimposed streams and the variation of signal amplification that may occur under suitable conditions is studied, as a function of beam width. The results indicate considerable discrepancies between the two theories in cases of narrow beams. As the width increases, however, the two cases tend asymptotically to a common value.