Patent ID: 8212623
Filing Date: 2012-07-03
Classification: H03B

Abstract:
1. A terahertz oscillator, comprising: a first insulating layer; an electron emitter on the first insulating layer, adapted to emit an electron beam, and including a cathode; an anode, an oscillating circuit, and a collector sequentially spaced apart from each other on the first insulating layer in a direction in which the electron beam is emitted from the electron emitter, wherein the oscillating circuit converts energy of the electron beam to energy of an electromagnetic wave, and wherein the collector collects the electron beam; an output unit adapted to emit the electromagnetic wave from the oscillating circuit to outside of the terahertz oscillator; and an electron emitting material layer; wherein the cathode includes a first curved portion that extends in a direction perpendicular to the first insulating layer, and wherein the electron emitting material layer is on an inner surface of the first curved portion of the cathode.