Method for adjusting reactance of dielectric resonator

Abstract

Abstract PURPOSE:To attain ease of coupling with other circuit and a transistor amplifier by inserting a metallic rod or a dielectric rod from an opposite direction from an input/output terminal to a hole for coupling input/output so as to change the reactance. CONSTITUTION:A dielectric block 1 is a nearly rectangular block consisting of a sintered substance made of a high dielectric constant and has three holes 2 for resonator provided lengthwise at an interval and holes 3 for adjusting coupling provided between them, an input/output coupling hole 4 is provided respectively to both ends, an input/output terminal 5 made of a metal is inserted into the hole 4 so as to form a dielectric resonator. Moreover, a reactance adjusting rod 6 is inserted into the hole 4 from a direction opposite to the input/output terminal 5. The reactance adjusting rod 6 is made of a metallic material or a dielectric material and either of them is selected depending on the increase in the inductive component or the capacitive component. The impedance of the dielectric resonator is changed by the type of material of the reactance adjusting rod 6 and the amount of insertion to the hole 4 for input/output coupling.

Inventors

• 👤 Hisao Sato
• 👤 久夫 佐藤

Bibliographic Details