Dielectric substance filter

Abstract

Abstract PURPOSE: To achieve ease of manufacture, small size, light weight, and stable filter electrically and mechanically, by forming a plurality of holes on a dielectric substance block with a specified interval, and forming conductive film on the surface including the holes. CONSTITUTION: Holes 2, 3, 4 having λ/4 (where; λ is wavelength in use) depth L 1 are formed from a dielectric substance block 1 made of a dielectric substance having samll dielectric loss such as ceramic, and holes 7, 8 for connectors 5, 6 are formed on the side surface, and the entire part except the holes 7, 8 are metallized. A disc 9 for electric field coupling is provided. The inside surfaces of the holes 2, 3, 4 are all metallized, thereby constituting λ/4 resonance elements and each element is in electric field coupling via the dielectric substance of the block 1, resulting in constituting filters of 3 stage constitution between the connectors 5 and 6. COPYRIGHT: (C)1982,JPO&Japio

Inventors

• 👤 Takeshi Meguro
• 👤 Yukio Ito
• 👤 Bunichi Miyamoto

Bibliographic Details