OSCILLATION ELEMENT, OSCILLATOR, AND IMAGING APPARATUS USING THE SAME

摘要

An oscillation element includes an antenna for oscillation configured to oscillate electromagnetic waves, and multiple negative resistance elements electrically connected to the antenna in parallel, and the multiple negative resistance elements are disposed in only a place where the phases of electromagnetic waves oscillated therefrom are the common phase or opposite phase.

主权项

1. An oscillation element configured to oscillate electromagnetic waves, the oscillation element comprising:
an antenna including a resonator which resonates with the electromagnetic waves and configured to guide the electromagnetic waves; and a first negative resistance element electrically serially connected to the antenna, and a second negative resistance element electrically serially connected to the antenna and being electrically parallel to the first negative resistance element, wherein the first negative resistance element is disposed in a position of a wave front of the electromagnetic waves with which the resonator resonates, in such a manner that an absolute value of a phase difference between a phase of the wave front of the electromagnetic waves with which the resonator resonates in the position where the first negative resistance element is disposed and a phase of a wave front of the electromagnetic waves with which the resonator resonates in a position where the second negative resistance element is disposed becomes 0 or greater and π/8 or less, or the absolute value becomes 7π/8 or greater and 9π/8 or less.