Coaxial filter

Abstract

Abstract PURPOSE:To vary a capacitance coupling inter-stage, by mounting a metallic conductor to a tip of a center conductor of a coaxial resonator for attaining capacitive coupling and mounting a movable conductor or dielectric. CONSTITUTION:An inter-stage coupling metallic conductor 13 is mounted to the tip of the center conductor of the coaxial resonator having the center conductor 6 and an outer conductor 7 higher than the outer conductor plane of an open end to form a coupled capacitance with adjacent metallic conductors 13. Further, an inter-stage coupling capacitance minute tuning screw 8 mounting the metallic conductor or dielectric at the tip of a machine screw is mounted movably between the metallic conductors 13. In using the tuning screw 8 mounted with the metallic conductor, the metallic conductor becomes a common capacitance electrode between the metallic conductors 13 and the capacitance is varied by moving the conductor up and down. In mounting the dielectric, the coupling capacitance formed with the metallic conductors 13 is changed by moving the screw in response to the specific dielectric constant of the dielectric.

Inventors

• 👤 Haruyoshi Endo
• 👤 遠藤　晴良
• 👤 Mitsuo Makimoto
• 👤 三夫 牧本
• 👤 Sadahiko Yamashita
• 👤 山下　貞彦

Bibliographic Details