transfer the modulator pulse to the magnetron. The reason for using a
bifilar secondary winding on T2 is to
permit a 4:1 step-up of voltage.
allow the use of a conventional filament transformer.
reduce the effects of the changing magnetron impedance.
permit the use of a smaller pulse cable with less high-voltage
The performance of a high-level modulator can be improved by coupling
the pulse from the modulator to the magnetron through a pulse
eliminating the magnetron filament transformer.
permitting higher voltages in the pulse-forming network.
If the characteristic resistance of the PFN shown in Figure 65 is not
equal to the magnetron's impedance, the pulse applied to the magnetron
will be distorted. This impedance mismatch will also cause the PFN to
charge to a lower voltage on each succeeding charge cycle.
charge to a higher voltage on each succeeding charge cycle.
produce a pulse that has a duration time of less than two TDs.
produce a voltage