RESEARCH ON MILLIMETER FERROMAGNETIC TYPE PARAMETRIC AMPLIFIER
WESTINGHOUSE ELECTRIC CORP BALTIMORE MD AIR ARM DIV
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Investigating techniques were continued for ferromagnetic parametric amplification in the millimeter-wave frequency region. Experimental correlation was obtained for the 8mm data. New data was obtained for 2 mm, HH0, and for 8 mm, H Ho. A method for establishing an operating point is described. A rod size is shown which will support three appropriately chosen simultaneous electromagnetic resonances. Work has begun on the dielectric rod structure as a means of treating the more difficult case of the ferrite rod. Similar feeds are required for analogous modes. Analysis of the dispersive properties is much simpler and is available from a number of previous studies. An operating point is chosen from a knowledge of the dispersive behavior of the dielectric rod. The magnetodynamic mode chart is completed. Charting over a wide frequency range has permitted close correlation with the theoretical Walker mode spectrum at low frequencies and good agreement with predicted modes of the dielectric sphere resonator at high frequencies.
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