Dielectric filter

Abstract

Abstract PURPOSE:To reduce loss in an intermediate frequency range between a high frequency and a low frequency range, by constituting input and output coupling parts at both ends of a dielectric block in a rectangular parallelepiped shape, and then metallizing the external circumference while constituting a resonator by removing the intermediate part partially. CONSTITUTION:At both ends of a dielectric block 1, holes 2a and 2b for input and output coupling are provided, and between them, a hole 3 for forming a resonator is formed. The entire surface of the dielectric block is metallized to form a conductor film 4 over the entire surface. Then, the internal conductor 51 of a coaxial cable 5 is inserted into the input and output coupling holes 2a and 2b to constitute a coaxial waveguide transducer to eliminate the difference between the characteristic impedance of the coaxial line and that of a waveguide.

Inventors

• 👤 Takeyasu Maeda
• 👤 前田　健康
• 👤 Tsuyoshi Meguro
• 👤 目黒　▲つよし▼

Bibliographic Details