Filter device having a dielectric resonator and a coupling loop

Details Filter device having a dielectric resonator and a coupling loop Filter device having a dielectric resonator and a coupling loop

1997-10-29

1999-08-24

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

3332191, H01P 710

Patent

active

059429593

ABSTRACT:
In a filter device, at least one electrically conductive leaf member is mounted on a coupling loop by soldering or the like. By bending the conductive leaf member and adjusting the bending angle, the number of magnetic lines of force to be blocked, that is, the degree of magnetic coupling, is controlled. Therefore, when the mounting position of the leaf member is predetermined, the parameter of adjustment can be limited to the bending angle, and the adjustment is thereby facilitated.

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Patent Abstracts of Japan, vol. 96, No. 7, Jul. 31, 1996 & JP 08 084008 A (Murata Mfg Co Ltd), Mar. 26, 1997, abstract.
Patents Abstracts of Japan, vol. 13, No. 136 (E-737), Apr. 5, 1989 & JP 63 299602 A (Murata Mfg Co Ltd), Dec. 7, 1988, abstract.
Patents Abstracts of Japan, vol. 95, No. 7, Aug. 31, 1995& JP 07 094918 A (Murata Mfg Co Ltd), Apr. 7, 1995, abstract.
Patent Abstracts of Japan, vol. 96, No. 7, Jul. 31, 1996 & JP 08 065005 A (Murata Mfg Co Ltd), Mar. 8, 1996, abstract.
European Search Report dated Jan. 28, 1998.

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