Arrangement in a power unit for a grid-pulsed, O-type microwave tube

An arrangement in a power unit for a grid-pulsed, O-type microwave tube, comprising:

• a cathode;
• a collector;
• a cathode power unit having first and second cathode power unit output terminals coupled to the cathode, the second cathode power unit output terminal also being coupled to a ground terminal;
• a first capacitor coupled between the first and second cathode power unit output terminals;
• a collector power unit having first and second collector power unit output terminals coupled to the collector, the second collector power unit output terminal being coupled to the first cathode power unit output terminal;
• a second capacitor coupled between the first and second collector power unit output terminals;
• first and second non-capacitive impedances adapted to the impedance of the second capacitor and coupled, respectively, between the first and second collector power unit output terminals and the second capacitor;
• and
• first and second decoupling capacitors, adapted to the capacitance to ground of the first and second collector power unit output terminals, respectively, coupled from a point between the first and second collector power unit output terminals and the first and second non-capacitive impedances, respectively, and the ground terminal,
• wherein the coupling of the first and second collector power unit output terminals to the first and second non-capacitive impedances, respectively, reduces crosstalk caused by the collector power unit across the first capacitor.