Patent ID: 8410860

Claim:
An oscillator for oscillating an electromagnetic wave, comprising: a resonator section including a resonant tunneling diode, a dielectric in contact with the resonant tunneling diode, and first and second conductors, the resonator section being structured such that the dielectric is interposed between the first and second conductors and such that the first and second conductors are electrically connected to the resonant tunneling diode; a capacitor section structured such that the dielectric is interposed between the first and second conductors; a line section configured to electrically connect the resonator section and the capacitor section in parallel to each other; and a resistor section configured to electrically connect the first and second conductors to each other; wherein a first position of the resonator section and a second position of the capacitor section are connected to each other by the line section so that an admittance of the first position and an admittance of the second position are substantially equivalent to each other in a wavelength range larger than a wavelength of an electromagnetic wave that resonates in the resonator section.