An automatic phase plotter for the measurement of microwave fields.
Institution: | McGill University |
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Department: | Department of Engineering. |
Degree: | Master of Engineering. |
Year: | 1958 |
Keywords: | Electrical Engineering. |
Record ID: | 1507019 |
Full text PDF: | http://digitool.library.mcgill.ca/thesisfile111462.pdf |
The problem of phase measurement at microwave frequencies has been investigated and an automatic, recording system developed for use in microwave optics studies. The phase plotter operates at 9.3 Kmc/s and measures phase and intensity of a field continuously along chosen scanning lines. The phase measurement is essentially independent of intensity variations of up to 40 db and the follow-up response during automatic operation is over 90° per second. The accuracy is + 5° in automatic operation and + 2° when operated manually. The system's operation depends on the Homodyne technique. Automatic operation is made possible by the development of a novel modulator using ferrite microwave components.