Intra-spectrum noise measurements of pulse crossed-field amplifiers

The intra-spectrum PM noise characteristic of a number of pulsed CFAs has been examined. Measurements were made to obtain an understanding of the noise mechanism in crossed-field interaction devices so that they can be properly specified for transmitter applications and as the first step in a program for possible improvement of the signal-to-noise ratios. Measurements were made over a range of conditions to determine noise relationships between RF frequency, pulse conditions, operating power level, receiver filter bandwidths, and types of modulators.