Patent ID: 7884764

Claim:
An antenna oscillator, comprising: a first strip line type resonator fabricated by stacking a first open stub type strip conductor onto a grounding conductor defining a reference potential of each part with a first dielectric part therebetween, the first dielectric part having a gain part with a gain over electromagnetic waves to be oscillated; and a second resonator fabricated by stacking a second conductor, emitting electromagnetic waves to the exterior, onto the first resonator with a second dielectric part therebetween so as to function as an antenna by the configuration between the grounding conductor and the second conductor, wherein the first conductor of the first resonator and the second conductor of the second resonator are separated from each other in a stacking direction with the second dielectric part therebetween, and wherein the first resonator and the second resonator are electromagnetically connected together so as to form a resonance circuit that makes the electromagnetic waves oscillate, wherein the electromagnetic waves include terahertz waves, and wherein one end of the gain part is connected to the first conductor and the other end of the gain part is identical to the grounding conductor in potential.