Abstract: This filter comprises: a dielectric substrate; a plurality of resonators that are formed inside the dielectric substrate, and for which the periphery is surrounded by a shielding conductor; and input/output terminals that are formed at a portion at which the shielding conductor is not formed. The resonator closest to the input/output terminal of the plurality of resonators and the resonator that is closest to the input/output terminal of the plurality of resonators are in a point-symmetrical positional relationship.

Abstract: A vibrator includes: a vibrating reed having a vibrating body, first and second support portions supporting the vibrating body, and four beams coupling the first and second support portions with the vibrating body; electrodes disposed at the vibrating body; and terminals disposed at the first and second support portions and electrically connected with the electrodes via wires disposed at the beams. Between the terminals next to each other, a plurality of grooves spaced apart in a predetermined direction and extending in a direction intersecting the predetermined direction are disposed.