Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1995-01-18
1996-08-27
Lee, Benny
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333224, H01P 1202, H01P 704
Patent
active
055505198
ABSTRACT:
The invention relates to a dielectric resonator comprising a block (2) of dielectric material, having upper (9), lower and side surfaces and in which there is a hole (3a) extending from the upper surface to the lower surface. The hole (3a) and the lower surface as well as at least part of the side surfaces are coated with an electrically conductive material and at least the upper surface (9) is uncoated so that the hole (3a) thus forms a transmission line resonator. The uncoated surfaces are covered with a lid (5) of an electrically conductive material, whereby the dielectric block is substantially surrounded by an electrically conductive material. The resonator hole (3a) is composed of two portions, a straight portion (3a) beginning from the lower surface of the dielectric block as well as a wider portion (10) that is formed above the straight portion and opens into the upper surface (9) of the dielectric block. Both portions are covered with an electrically conductive material and the coatings of both portions form a juncture. Formed above the resonator hole is a frequency tuning element (11), the first end of which is earthed, the other end being at a distance from the surface of the resonator hole, thus forming a capacitance between the earth plane and the upper end of the transmission line resonator.
REFERENCES:
patent: 4506241 (1985-03-01), Makimoto et al.
patent: 4523162 (1985-06-01), Johnson
patent: 4631506 (1986-12-01), Makimoto et al.
patent: 4757284 (1988-07-01), Ueno
patent: 5218330 (1993-06-01), Omiya et al.
Patent Abstracts of Japan, vol. 8, No. 268 (E-283) [1705], Dec. 7, 1984 & JP-A-59 139701 (Nihon Dengiyou Kousaku K. K.) Aug. 10, 1984, 1 page, Hatanaka.
Patent Abstracts of Japan, vol. 17, No. 160 (E-1342), Mar. 29, 1993 & JP-A-04 323902 (Kyocera Corp.) Nov. 13, 1992, 1 page, Tetsuya.
Bettendorf Justin P.
Lee Benny
LK-Products OY
LandOfFree
Dielectric resonator having a frequency tuning element extending does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dielectric resonator having a frequency tuning element extending, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dielectric resonator having a frequency tuning element extending will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1058646