DOUBLE STRIP RESONATOR

PROBLEM TO BE SOLVED: To provide a small-sized resonator capable of achieving a high Q value by using a strip line structure in which there is no radiation loss of the resonator while achieving high power resistance property and capable of preventing occurrence of spurious resonance by improving a power supply method so as to remove contact resistance between an SMA connector and a feeder line.SOLUTION: In a double strip resonator, conductor layers are formed on opposite outside surfaces of first dielectric bodies 12 as a pair of ground conductors 20, and two strip conductors 14 are formed on an opposite faces on an inner surface side of the first dielectric bodies 12 through a second dielectric body 11 at a predetermined interval and are placed in parallel with the planes of the ground conductors 20 through the second dielectric body 11. Coaxial lines 17 directly supply electric power to the two strip conductors 14 from external connectors 18 without through strip lines, and the coaxial lines 17 are arranged on the intermediate position in the vertical directions of the two strip conductors 14.