Coaxial filter

Abstract

Abstract PURPOSE: To obtain a filter of simple constitution which reduces the leakage of the electromagnetic field of a resonator and prevents the deterioration of Q value and a stray connection, by arraying and fixing plural resonators to a dielectric substrate via bottomed metallic cylinders. CONSTITUTION: Resonators 601∼603 contain metallic cylinders 501∼503 with protruded parts at the tips of internal conductors 611∼613 and are fixed a coupling substrate 607 via screws 608∼610. The maximum diameter part of each metallic cylinder, i.e., the cylinder side part is put more inside than the tip of each of external conductors 614∼616 of the resonators. In such constitution, the electromagnetic field is concentrated at the inside of the resonators to decrease the stray connection. COPYRIGHT: (C)1982,JPO&Japio

Inventors

• 👤 Mitsuo Makimoto
• 👤 Haruyoshi Endo
• 👤 Ko Kikuchi
• 👤 Sadahiko Yamashita

Bibliographic Details