- a hollow enclosure (cavity resonator) made of conducting material of such dimensions that electromagnetic radiation of a certain frequency will resonate.
- any circuit having this frequency characteristic.
Examples from the Web for resonator
The operator talks to a membrane, and at the other end of the wire is a resonator of some kind which talks to the auditor there.The Galaxy, May, 1877|Various
The sound waves in this case can issue only from the front of the resonator,—the singer's mouth.
In the voice the exciting cause of the air vibrations is located at the back of the resonator,—the mouth-pharynx cavity.
The technician reached across leisurely to shut off the resonator.The Second Voice|Mann Rubin
A feeling of trembling in the upper chest is usually held to indicate that the chest cavity is working properly as a resonator.