Patent ID: 7145297
Filing Date: 2006-12-05
Classification: H01J

Abstract:
1. An inductive output tube (IOT) adapted to amplify an input RF signal into an output RF signal, the input RF signal and the output RF signal having the same predetermined frequency range above 1000 MHz, the IOT comprising: a cathode adapted to emit a linear electron beam; a grid comprised of non-electron emissive material adapted to density modulate the beam, when the input RE signal is applied between the cathode and the grid; an anode adapted to form an electric field in combination with the cathode for accelerating the beam; a collector adapted to collect the spent beam; an output cavity resonant to a frequency of the input RF signal, the output cavity positioned between the anode and the collector; and a coupler adapted to couple the output RF signal from the output cavity to a load, the coupler including an output window separating a vacuum portion of the IOT from an atmospheric pressure portion of the IOT, the output window surrounded by a cooling air manifold, the manifold including an air input port and a plurality of apertures permitting cooling air to move from the input air port, through the manifold and into the atmospheric pressure portion of the IOT.