MICROWAVE OSCILLATOR Russian patent published in 2008 - IPC H01J25/68 

FIELD: heavy-power pulse engineering; producing microwave oscillations of gigawatt power level.

SUBSTANCE: proposed microwave oscillator has resonating vacuum chamber accommodating anode connected to positive potential of pulsed power supply and antenna. Anode is made in the form of flat ring made of high-conductivity nonmagnetic material. Disposed opposite anode is cathode made of thin low-conductivity nonmagnetic material; disposed under cathode are turns of flat circular coil, its turn packing density being inversely proportional to radius. Coil turns are covered with screens (electron beam collectors) made of thin low-conductivity nonmagnetic material. Pyramidal antenna output window is disposed on side surface of resonating vacuum chamber opposite cathode. Grounded cathode and circular coil are provided with mechanism for their displacement along symmetry axis of microwave oscillator and with additional internal coil supplied with power from separate power source.

EFFECT: enhanced efficiency, pulse repetition rate, and microwave pulse energy density due to focusing energy within desired space.

2 cl, 6 dwg