| Title | Millimeter-Wave Generation with Spiraling Electron Beams |
|---|---|
| Record ID | 50566 |
| Personal Name Creator |
Kulke, Bernhard |
| Source | 98p. in various pagings |
| Corporate Creator | John A. Volpe National Transportation Systems Center (U.S.) |
| Corporate Contributor |
United States. National Aeronautics and Space Administration |
| Publisher | John A. Volpe National Transportation Systems Center (U.S.) |
| Publication Date | 19710200 |
| Language | English |
| Abstract | An investigation has been carried out of the feasibility of using the interaction between a thin, solid, spiraling electron beam of 10-20kV energy and a microwave cavity to generate watts of CW millimeter-wave power. Experimental results are given for several prototype devices operating at 9.4 GHz and at 94 GHz. Power outputs of 5W, and electronic efficiencies near 3900 , were obtained at X-band, and moderate gain was obtained at 94 GHz. The small-signal theory gives a good fit to the X-band data, and the device behavior at 94 GHz is as expected from the given beam characteristics. The performance is limited chiefly by the velocity spread in the spiraling electron beam, and once this can be brought under control, highpower generation of millimeter waves appears quite feasible with this type of device. |
| Rosap ID | dot:11945 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/11945 |
| TRT Terms | Millimeter waves; Microwave detectors; Superhigh frequency; Electromagnetic wave propagation |
| General Subjects | Continuous radiation; Electronic beams; Electric generators |
| Geographical Coverage |
United States |
| Report Number | DOT-TSC-NASA-71-7 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/50000/50500/50566/DOT-TSC-NASA-71-7.pdf |
| Format | |
| Database | NTL Digital Repository |