Multi-mode resonator/filter comprised of first and second columnar central conductors disposed within a cylindrical exterior conductor

摘要

Provided is a multi-mode resonator in which four resonance modes are degenerated, a dielectric member is not necessarily required, and enhanced efficient use of space is obtained. A multi-mode resonator 1 is a multi-mode resonator in which four resonance modes are degenerated, this resonator including an exterior conductor 2 made of a metal material, and formed in the shape of a box, wherein both ends of a cylindrical circumferential wall section 2c are closed off by a first end section 2a and a second end section 2b; a columnar first central conductor disposed inside the exterior conductor 2, one end 3a being shorted to the first end section 2a of the exterior conductor 2 and another end 3b being left open; and a columnar second central conductor disposed inside the exterior conductor 2, one end 4a being shorted to the second end section 2b of the exterior conductor 2 and another end 4b being left open.

主权项

1. A multi-mode resonator in which at least four resonance modes are degenerated, comprising:
a cylindrical-shaped exterior conductor in which both ends of a cylindrical circumferential wall section are closed off by a first end section and a second end section; a columnar first central conductor disposed inside the exterior conductor, one end of the first central conductor being short circuited to the first end section of the exterior conductor and the other end being left open circuited; and a columnar second central conductor disposed inside the exterior conductor, one end of the second central conductor being short circuited to the second end section of the exterior conductor, and the other end being left open circuited.